What is the cheapest airline that flies from San Diego to Washington, D.C.?

Frontier, JetBlue, and Southwest are the most popular carriers operating from San Diego to Washington, D.C.

Which airport is the most popular layover for flights between San Diego and Washington, D.C.?

Las Vegas (LAS) was the most common stop: 58% of momondo users choosing 1-stop flights on this route connected there.

Which airline has the best punctuality record on San Diego to Washington, D.C. flights?

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 9% of their flights experiencing any sort of delay.

How many flights depart from San Diego to Washington, D.C. on average per week?

As of December 2025, there are 95 flights per week flying from San Diego to Washington, D.C.. The most common day of the week flights depart is Wed, with 19% of flights taking off on this day.

Which layover airport has the shortest travel time from San Diego to Washington, D.C.?

Flights connecting via Nashville (BNA) have the shortest average one-way travel time: 6h 30m.

How many flights depart from San Diego to Washington, D.C. on average per day?

13 flights are operational daily from San Diego to Washington, D.C. as of December 2025. The most popular departure time for this route is 7:00AM, with 55% of flights per day taking off at noon.

How often are flights from San Diego to Washington, D.C. delayed?

Historically, on average around 13% of flights between San Diego and Washington, D.C. have experienced a delay on any given week. The average delay length over the past 12 months has been 151 minutes.

Which layover airport offers the lowest fares from San Diego to Washington, D.C.?

Flights via Denver (DEN) offer the lowest average round-trip price of $157.

Which layover airport has the shortest connection time from San Diego to Washington, D.C.?

Nashville (BNA) has the shortest average layover time for this route: 1h 20m.

What airlines fly to Washington, D.C.?

United Airlines, Southwest and American Airlines are the top three most popular airlines that fly to Washington, D.C. from San Diego according to our data. United Airlines is the first choice among our users, with 32% of people opting to fly with this airline when traveling to Washington, D.C.. Keep in mind that there are 9 different airlines that fly to Washington, D.C. on a routine basis, so you have a few additional options to choose from.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

What is the most punctual flight time for San Diego to Washington, D.C. flights?

Generally, flights departing at night tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

When did momondo last update prices for flights from San Diego Airport to Washington, D.C.?

Prices for flights from San Diego Airport to Washington, D.C. were last updated today.

How many operators does momondo search for flights from San Diego Airport to Washington, D.C.?

There are 9 operators available for flights from San Diego Airport to Washington, D.C. as of December 2025.

How old do you have to be to fly from San Diego Airport to Washington, D.C.?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Diego Airport to Washington, D.C..

What documentation or ID do you need to fly to Washington, D.C.?

The travel and health documents required for your trip to Washington, D.C. can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington, D.C.. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$76 Cheap Flights from San Diego to Washington, D.C. in 2025/26

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One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

3:29 pm - 9:27 am

SAN

BWI

14h 58m2 stops

12:49 pm - 11:36 pm

BWI

SAN

13h 47m1 stop

$228Multiple Airlines

Tue, Jan 6 - Thu, Jan 8

2:50 pm - 10:21 am

SAN

BWI

16h 31m2 stops

12:42 pm - 12:24 am

BWI

SAN

14h 42m1 stop

$234Frontier

Thu, Jan 8 - Thu, Jan 15

6:25 am - 9:04 pm

SAN

BWI

11h 39m1 stop

12:49 pm - 11:36 pm

BWI

SAN

13h 47m1 stop

$238Frontier

Fri, Jan 9 - Mon, Jan 12

11:49 am - 9:59 pm

SAN

DCA

7h 10m1 stop

6:00 pm - 10:25 am

DCA

SAN

43h 25m2 stops

$249Frontier

Mon, Feb 2 - Tue, Feb 3

6:15 am - 9:59 pm

SAN

DCA

12h 44m1 stop

6:56 pm - 8:35 am

DCA

SAN

16h 39m1 stop

$256Alaska Airlines

Sat, Jan 17 - Sat, Jan 24

6:20 am - 4:31 pm

SAN

IAD

7h 11m1 stop

5:26 pm - 10:50 pm

IAD

SAN

8h 24m1 stop

$256American Airlines

Sat, Jan 10 - Sat, Jan 17

12:53 pm - 9:00 pm

SAN

DCA

5h 07mnonstop

8:59 am - 11:56 am

DCA

SAN

5h 57mnonstop

$257Alaska Airlines

Fri, Jan 30 - Sat, Jan 31

1:05 pm - 9:01 pm

SAN

IAD

4h 56mnonstop

6:00 pm - 11:42 pm

IAD

SAN

8h 42m1 stop

$267United Airlines

Mon, Jan 12 - Sat, Jan 17

9:45 pm - 5:30 am

SAN

BWI

4h 45mnonstop

6:20 am - 9:25 am

BWI

SAN

6h 05mnonstop

$277Southwest

Wed, Feb 18 - Wed, Feb 25

6:15 am - 5:26 pm

SAN

BWI

8h 11m1 stop

10:05 am - 5:28 pm

BWI

SAN

10h 23m2 stops

$282United Airlines

Sat, Jan 17 - Wed, Jan 21

American Airlines flights from San Diego to Washington, D.C.

Our best American Airlines deals on San Diego to Washington, D.C. flight tickets

American Airlines

Jan 10

SAN6:20 amSan Diego

7h 11m

1 stop

IAD4:31 pmWashington, D.C. Dulles Intl

Jan 17

IAD5:26 pmWashington, D.C. Dulles Intl

8h 24m

1 stop

SAN10:50 pmSan Diego

$256

Find similar

American Airlines

Jan 17

SAN10:09 amSan Diego

10h 37m

2 stops

BWI11:46 pmBaltimore/Washington

Jan 24

BWI11:13 amBaltimore/Washington

10h 18m

2 stops

SAN6:31 pmSan Diego

$287

Find similar

American Airlines

Jan 5

SAN10:01 pmSan Diego

9h 57m

1 stop

IAD10:58 amWashington, D.C. Dulles Intl

Jan 12

IAD5:26 pmWashington, D.C. Dulles Intl

8h 24m

1 stop

SAN10:50 pmSan Diego

$296

Find similar

United Airlines flights from San Diego to Washington, D.C.

Our best United Airlines deals on San Diego to Washington, D.C. flight tickets

United Airlines

Jan 12

SAN1:05 pmSan Diego

4h 56m

IAD9:01 pmWashington, D.C. Dulles Intl

Jan 17

IAD6:00 pmWashington, D.C. Dulles Intl

8h 42m

1 stop

SAN11:42 pmSan Diego

$267

Find similar

United Airlines

Jan 17

SAN6:15 amSan Diego

8h 11m

1 stop

BWI5:26 pmBaltimore/Washington

Jan 21

BWI10:05 amBaltimore/Washington

10h 23m

2 stops

SAN5:28 pmSan Diego

$282

Find similar

United Airlines

Jan 5

SAN7:55 pmSan Diego

7h 52m

1 stop

IAD6:47 amWashington, D.C. Dulles Intl

Jan 10

IAD12:55 pmWashington, D.C. Dulles Intl

5h 45m

SAN3:40 pmSan Diego

$283

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from San Diego to Washington, D.C. that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San DiegoBaltimore

SAN - BWI

SANBWI

San Diego

Tue 1/6

3:29 pm-9:27 am

2 stops14h 58m

Baltimore/Washington

Thu 1/8

12:49 pm-11:36 pm

1 stop13h 47m

$228

San DiegoBaltimore

SAN - BWI

SANBWI

San Diego

Thu 1/8

2:50 pm-10:21 am

2 stops16h 31m

Baltimore/Washington

Thu 1/15

12:42 pm-12:24 am

1 stop14h 42m

$234

San DiegoBaltimore

SAN - BWI

SANBWI

San Diego

Fri 1/9

6:25 am-9:04 pm

1 stop11h 39m

Baltimore/Washington

Mon 1/12

12:49 pm-11:36 pm

1 stop13h 47m

$238

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Mon 2/2

11:49 am-9:59 pm

1 stop7h 10m

Washington, D.C. Reagan-National

Tue 2/3

6:00 pm-10:25 am

2 stops43h 25m

$249

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Sat 1/17

6:15 am-9:59 pm

1 stop12h 44m

Washington, D.C. Reagan-National

Sat 1/24

6:56 pm-8:35 am

1 stop16h 39m

$256

San DiegoWashington, D.C.

SAN - IAD

SANIAD

San Diego

Sat 1/10

6:20 am-4:31 pm

1 stop7h 11m

Washington, D.C. Dulles Intl

Sat 1/17

5:26 pm-10:50 pm

1 stop8h 24m

$256

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Fri 1/30

12:53 pm-9:00 pm

Nonstop5h 07m

Washington, D.C. Reagan-National

Sat 1/31

8:59 am-11:56 am

Nonstop5h 57m

$257

San DiegoWashington, D.C.

SAN - IAD

SANIAD

San Diego

Mon 1/12

1:05 pm-9:01 pm

Nonstop4h 56m

Washington, D.C. Dulles Intl

Sat 1/17

6:00 pm-11:42 pm

1 stop8h 42m

$267

San DiegoBaltimore

SAN - BWI

SANBWI

San Diego

Wed 2/18

9:45 pm-5:30 am

Nonstop4h 45m

Baltimore/Washington

Wed 2/25

6:20 am-9:25 am

Nonstop6h 05m

$277

San DiegoBaltimore

SAN - BWI

SANBWI

San Diego

Sat 1/17

6:15 am-5:26 pm

1 stop8h 11m

Baltimore/Washington

Wed 1/21

10:05 am-5:28 pm

2 stops10h 23m

$282

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How to get the cheapest flight ticket from San Diego to Washington, D.C.

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Delays

Layovers

Other information

What is the cheapest month to fly to Washington, D.C.?

The month of August is, on average, the cheapest month to fly to Washington, D.C. from San Diego, with most prices found around $278. If you’re not able to fly to Washington, D.C. in August, then September is your next best option. Flight prices from San Diego to Washington, D.C. during September average around $317.

What is the cheapest day to depart on your flight to Washington, D.C.?

On average, the least expensive day to fly to Washington, D.C. from San Diego is on a Friday. momondo users have found tickets for Friday departures for as low as $400. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from San Diego to Washington, D.C. for around $595.

What is the cheapest time of day to depart on your flight to Washington, D.C.?

In the afternoon is the cheapest time of day to fly from San Diego to Washington, D.C. when you can find flight prices for as low as $253. Flying to Washington, D.C. in the afternoon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the evening because they tend to be around $486. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest San Diego to Washington, D.C. flight route?

Fly from San Diego to Baltimore/Washington for the best San Diego - Washington, D.C. flight prices

How far in advance should I book a flight to Washington, D.C.?

You are more likely to see cheaper flights to Washington, D.C. from San Diego when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. for around $393 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. from San Diego for as low as $291 on momondo.

What cabin class options are available on San Diego to Washington, D.C. flights?

There are 4 cabin classes available to choose from on San Diego to Washington, D.C. flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on San Diego to Washington, D.C. flights?

You could potentially save up to 39% on your flight if you consider stops on a San Diego to Washington, D.C. flight.

How have San Diego to Washington, D.C. flight prices changed over time?

As of December 2025, prices for San Diego to Washington, D.C. flights are approximately 23% cheaper when compared to flights at the same time last year.

When to book flights from San Diego to Washington, D.C.

Are you open to changing your travel dates? Check out the ideal times to fly from San Diego to Washington, D.C. according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap San Diego to Washington, D.C. (SAN to WAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Diego to Washington, D.C.

Best Price Found	$158
Fastest flight time	4h 37m
Direct flights	Every day
Airports in Washington, D.C.	2 airports

The best one-way flight to Washington, D.C. from San Diego in the past 72 hours is $158. The best round-trip flight deal from San Diego to Washington, D.C. found on momondo in the last 72 hours is $257.

The fastest flight from San Diego to Washington, D.C. takes 4h 37m

Direct flights go from San Diego to Washington, D.C. every day.

There are 2 airports in Washington, D.C.. From San Diego there are direct flights to Washington, D.C. Reagan-National (DCA), Baltimore/Washington (BWI), Washington, D.C. Dulles Intl (IAD).

Search flight deals

How far is San Diego to Washington, D.C. by plane?
San Diego and Washington, D.C. are 2268.2 mi apart from one another. 4h 37m is a normal flight duration for this route.
When did momondo last update prices for flights from San Diego Airport to Washington, D.C.?
Prices for flights from San Diego Airport to Washington, D.C. were last updated today.
How many operators does momondo search for flights from San Diego Airport to Washington, D.C.?
There are 9 operators available for flights from San Diego Airport to Washington, D.C. as of December 2025.
How old do you have to be to fly from San Diego Airport to Washington, D.C.?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Diego Airport to Washington, D.C..
What documentation or ID do you need to fly to Washington, D.C.?
The travel and health documents required for your trip to Washington, D.C. can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington, D.C.. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular plane model from San Diego to Washington, D.C.?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from San Diego to Washington, D.C. is Boeing 737-800 Passenger/BBJ2 (winglets) (21.20% of total bookings). The next most popular plane models are Boeing 737 MAX 9 (20.81%), Boeing 737-900 (18.03%), and Boeing 737 (14.45%).
What is the most popular airline from San Diego to Washington, D.C.?
momondo data reveals that the most frequently booked airline on the route from San Diego to Washington, D.C. is Alaska Airlines, representing 41% of all bookings. The subsequent popular airlines are United Airlines at 32%, Frontier at 9%, and Hawaiian Airlines at 7%.

Best airlines flying from San Diego to Washington, D.C.

Compare and see reviews for airlines that fly from San Diego to Washington, D.C. with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $128	Free Cancellation	Rating 5.8 3,084 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $145	Free Cancellation	Rating 6.3 8,180 reviews	Search Spirit Airlines flights
Hawaiian Airlines	PriceFrom $158	Free Cancellation	Rating 7.8 2,817 reviews	Search Hawaiian Airlines flights
Delta	PriceFrom $168	Free Cancellation	Rating 7.9 8,007 reviews	Search Delta flights
JetBlue	PriceFrom $224	Free Cancellation	Rating 7.2 2,899 reviews	Search JetBlue flights
Southwest	PriceFrom $232	Free Cancellation	Rating 7.9 4,253 reviews	Search Southwest flights
Alaska Airlines	PriceFrom $236	Free Cancellation	Rating 8.0 11,432 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $237	Free Cancellation	Rating 7.4 9,095 reviews	Search United Airlines flights
American Airlines	PriceFrom $256	Free Cancellation	Rating 7.2 11,050 reviews	Search American Airlines flights

Alaska Airlines Flights From San Diego to Washington, D.C.
Across 11 Alaska Airlines flights from San Diego to Washington, D.C. this week, the average price was $363, with the best Alaska Airlines deals starting from $236 round-trip. 11,432 users have rated Alaska Airlines on momondo, with an average score of 8.0/10.
Southwest Flights From San Diego to Washington, D.C.
Across 4,253 Southwest reviews on momondo, the average score is 7.9/10. Southwest flies from San Diego to Washington, D.C. about 4 times each week, with ticket deals ranging from $232 to $440. Price data is based on momondo searches in the last 72 hours.

Alexandria

National Harbor

Gettysburg

Arlington

Woodbridge

Waldorf

Tysons

Laurel

Colonial Beach

Silver Spring

Fredericksburg

Towson

Rockville

Gaithersburg

Reston

Manassas

Fairfax

Glen Burnie

Linthicum Heights

Springfield

Why use momondo?

Why should I use momondo to find a flight deal from San Diego to Washington, D.C.?

Finding the right flight to Washington, D.C. from San Diego is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington, D.C. quick and easy, saving you time and money.

Can I find flights from San Diego to Washington, D.C. with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for San Diego to Washington, D.C. flights to just show those with flexible booking policies.

How can momondo help me find flights from San Diego to Washington, D.C.?

Once you have performed a search for San Diego to Washington, D.C. flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from San Diego to Washington, D.C. right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Washington, D.C. from San Diego. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Find better results for your trip to the United States

Fly into one of these airports located in Washington, D.C.

Washington, D.C. Reagan-National Airport

Washington, D.C. Dulles Intl Airport

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Flights to Las Vegasfrom $40

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Flights to Denverfrom $47

Cheap flights from San Diego to Washington, D.C. from $76

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Diego to Washington, D.C. departing on 1/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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American Airlines flights from San Diego to Washington, D.C.

Our best American Airlines deals on San Diego to Washington, D.C. flight tickets

United Airlines flights from San Diego to Washington, D.C.

Our best United Airlines deals on San Diego to Washington, D.C. flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from San Diego to Washington, D.C. that are best for you.

See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from San Diego to Washington, D.C.

What is the cheapest month to fly to Washington, D.C.?

What is the cheapest day to depart on your flight to Washington, D.C.?

What is the cheapest time of day to depart on your flight to Washington, D.C.?

What is the cheapest San Diego to Washington, D.C. flight route?

Fly from San Diego to Baltimore/Washington for the best San Diego - Washington, D.C. flight prices

How far in advance should I book a flight to Washington, D.C.?

What cabin class options are available on San Diego to Washington, D.C. flights?

There are 4 cabin classes available to choose from on San Diego to Washington, D.C. flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on San Diego to Washington, D.C. flights?

You could potentially save up to 39% on your flight if you consider stops on a San Diego to Washington, D.C. flight.

How have San Diego to Washington, D.C. flight prices changed over time?

As of December 2025, prices for San Diego to Washington, D.C. flights are approximately 23% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from San Diego to Washington, D.C.?

Frontier, JetBlue, and Southwest are the most popular carriers operating from San Diego to Washington, D.C.

What airlines fly to Washington, D.C.?

How often are flights from San Diego to Washington, D.C. delayed?

Historically, on average around 13% of flights between San Diego and Washington, D.C. have experienced a delay on any given week. The average delay length over the past 12 months has been 151 minutes.

What is the most punctual flight time for San Diego to Washington, D.C. flights?

Generally, flights departing at night tend to experience fewer delays. Flights in the evening have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Tuesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on San Diego to Washington, D.C. flights?

According to our data, United Airlines have had the least number of delays on this route over the last 12 months; with about 9% of their flights experiencing any sort of delay.

Which airport is the most popular layover for flights between San Diego and Washington, D.C.?

Las Vegas (LAS) was the most common stop: 58% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport offers the lowest fares from San Diego to Washington, D.C.?

Flights via Denver (DEN) offer the lowest average round-trip price of $157.

Which layover airport has the shortest travel time from San Diego to Washington, D.C.?

Flights connecting via Nashville (BNA) have the shortest average one-way travel time: 6h 30m.

Which layover airport has the shortest connection time from San Diego to Washington, D.C.?

Nashville (BNA) has the shortest average layover time for this route: 1h 20m.

How many flights depart from San Diego to Washington, D.C. on average per day?

13 flights are operational daily from San Diego to Washington, D.C. as of December 2025. The most popular departure time for this route is 7:00AM, with 55% of flights per day taking off at noon.

How many flights depart from San Diego to Washington, D.C. on average per week?

As of December 2025, there are 95 flights per week flying from San Diego to Washington, D.C.. The most common day of the week flights depart is Wed, with 19% of flights taking off on this day.

When to book flights from San Diego to Washington, D.C.

Cheap San Diego to Washington, D.C. (SAN to WAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Diego to Washington, D.C.

Best Price Found

Fastest flight time

Direct flights

Airports in Washington, D.C.

How far is San Diego to Washington, D.C. by plane?

When did momondo last update prices for flights from San Diego Airport to Washington, D.C.?

How many operators does momondo search for flights from San Diego Airport to Washington, D.C.?

How old do you have to be to fly from San Diego Airport to Washington, D.C.?

What documentation or ID do you need to fly to Washington, D.C.?

What is the most popular plane model from San Diego to Washington, D.C.?

What is the most popular airline from San Diego to Washington, D.C.?

Best airlines flying from San Diego to Washington, D.C.

Compare and see reviews for airlines that fly from San Diego to Washington, D.C. with momondo

Alaska Airlines Flights From San Diego to Washington, D.C.

Southwest Flights From San Diego to Washington, D.C.

Traveling to a place near Washington, D.C.?

Why use momondo?

Why should I use momondo to find a flight deal from San Diego to Washington, D.C.?

Can I find flights from San Diego to Washington, D.C. with flexible booking policies on momondo?