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 33% of people opting to fly with this airline when traveling to Washington, D.C.. Keep in mind that there are 8 different airlines that fly to Washington, D.C. on a routine basis, so you have a few additional options to choose from.

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

Las Vegas (LAS) was the most common stop: 53% of momondo users choosing 1-stop flights on this route connected there.

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.

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

Frontier, Alaska Airlines, and American Airlines are the most popular carriers operating from San Diego to Washington, D.C.

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

As of November 2025, there are 101 flights per week flying from San Diego to Washington, D.C.. The most common day of the week flights depart is Mon, with 18% of flights taking off on this day.

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.

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

14 flights are operational daily from San Diego to Washington, D.C. as of November 2025. The most popular departure time for this route is 8:00AM, with 57% of flights per day taking off at noon.

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.

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 8 operators available for flights from San Diego Airport to Washington, D.C. as of November 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.

$69 Cheap Flights from San Diego to Washington, D.C. in 2025/26

Q: What is the typical price of a round-trip flight between San Diego and Washington, D.C.?

Prices are currently low for flights on this route. Typical prices usually range from $277 to $466. The lowest price recently found on this route was $227.

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12:52 pm - 9:02 pmSAN-DCA

5h 10mnonstop

8:59 am - 11:53 amDCA-SAN

5h 54mnonstop

$227Hawaiian Airlines

Find Deal

Sat, Dec 6 - Sat, Dec 13

12:52 pm - 9:02 pmSAN-DCA

5h 10mnonstop

6:00 pm - 11:59 pmDCA-SAN

8h 59m1 stop

$229Multiple Airlines

Find Deal

Thu, Dec 11 - Mon, Dec 15

12:08 pm - 10:20 pmSAN-IAD

7h 12m1 stop

7:00 pm - 11:42 pmIAD-SAN

7h 42m1 stop

$232United Airlines

Find Deal

Sat, Dec 6 - Tue, Dec 9

6:52 pm - 1:06 pmSAN-DCA

15h 14m2 stops

2:00 pm - 7:15 pmDCA-SAN

8h 15m1 stop

$234Frontier

Find Deal

Mon, Dec 1 - Sun, Dec 7

12:52 pm - 9:02 pmSAN-DCA

5h 10mnonstop

8:59 am - 11:53 amDCA-SAN

5h 54mnonstop

$235Alaska Airlines

Find Deal

Sat, Dec 6 - Sat, Dec 13

9:25 am - 5:30 pmSAN-IAD

5h 05mnonstop

5:26 pm - 8:23 pmIAD-SAN

5h 57mnonstop

$235Alaska Airlines

Find Deal

Sun, Dec 14 - Sat, Jan 10

3:47 pm - 1:06 pmSAN-DCA

18h 19m2 stops

1:00 pm - 10:46 pmDCA-SAN

12h 46m1 stop

$238Frontier

Find Deal

Thu, Dec 4 - Wed, Dec 10

10:05 am - 7:30 pmSAN-DCA

6h 25m1 stop

12:55 pm - 8:30 pmDCA-SAN

10h 35m2 stops

$242Southwest

Find Deal

Sat, Dec 6 - Tue, Dec 9

12:40 pm - 10:15 pmSAN-IAD

6h 35m1 stop

7:40 am - 3:35 pmIAD-SAN

10h 55m2 stops

$242Southwest

Find Deal

Sat, Dec 6 - Tue, Dec 9

10:52 am - 9:18 pmSAN-IAD

7h 26m1 stop

9:00 am - 11:38 amIAD-SAN

5h 38mnonstop

$243United Airlines

Find Deal

Thu, Dec 4 - Sat, Dec 6

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

Dec 3

SAN12:43 pmSan Diego

7h 25m

1 stop

IAD11:08 pmWashington, D.C. Dulles Intl

Dec 16

IAD5:22 pmWashington, D.C. Dulles Intl

7h 59m

1 stop

SAN10:21 pmSan Diego

$236

Find similar

American Airlines

Dec 6

SAN6:15 amSan Diego

7h 03m

1 stop

IAD4:18 pmWashington, D.C. Dulles Intl

Dec 13

IAD11:30 amWashington, D.C. Dulles Intl

7h 18m

1 stop

SAN3:48 pmSan Diego

$239

Find similar

American Airlines

Dec 3

SAN10:23 pmSan Diego

7h 21m

1 stop

IAD8:44 amWashington, D.C. Dulles Intl

Dec 11

IAD2:06 pmWashington, D.C. Dulles Intl

7h 44m

1 stop

SAN6:50 pmSan Diego

$256

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

Dec 6

SAN12:08 pmSan Diego

7h 12m

1 stop

IAD10:20 pmWashington, D.C. Dulles Intl

Dec 9

IAD7:00 pmWashington, D.C. Dulles Intl

7h 42m

1 stop

SAN11:42 pmSan Diego

$232

Find similar

United Airlines

Dec 4

SAN10:52 amSan Diego

7h 26m

1 stop

IAD9:18 pmWashington, D.C. Dulles Intl

Dec 6

IAD9:00 amWashington, D.C. Dulles Intl

5h 38m

SAN11:38 amSan Diego

$243

Find similar

United Airlines

Dec 14

SAN9:55 pmSan Diego

4h 41m

IAD5:36 amWashington, D.C. Dulles Intl

Jan 10

IAD2:24 pmWashington, D.C. Dulles Intl

9h 18m

1 stop

SAN8:42 pmSan Diego

$247

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 DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Sat 12/6

12:52 pm-9:02 pm

Nonstop5h 10m

Washington, D.C. Reagan-National

Sat 12/13

8:59 am-11:53 am

Nonstop5h 54m

$227

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Thu 12/11

12:52 pm-9:02 pm

Nonstop5h 10m

Washington, D.C. Reagan-National

Mon 12/15

6:00 pm-11:59 pm

1 stop8h 59m

$229

San DiegoWashington, D.C.

SAN - IAD

SANIAD

San Diego

Sat 12/6

12:08 pm-10:20 pm

1 stop7h 12m

Washington, D.C. Dulles Intl

Tue 12/9

7:00 pm-11:42 pm

1 stop7h 42m

$232

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Mon 12/1

6:52 pm-1:06 pm

2 stops15h 14m

Washington, D.C. Reagan-National

Sun 12/7

2:00 pm-7:15 pm

1 stop8h 15m

$234

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Sat 12/6

12:52 pm-9:02 pm

Nonstop5h 10m

Washington, D.C. Reagan-National

Sat 12/13

8:59 am-11:53 am

Nonstop5h 54m

$235

San DiegoWashington, D.C.

SAN - IAD

SANIAD

San Diego

Sun 12/14

9:25 am-5:30 pm

Nonstop5h 05m

Washington, D.C. Dulles Intl

Sat 1/10

5:26 pm-8:23 pm

Nonstop5h 57m

$235

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Thu 12/4

3:47 pm-1:06 pm

2 stops18h 19m

Washington, D.C. Reagan-National

Wed 12/10

1:00 pm-10:46 pm

1 stop12h 46m

$238

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Sat 12/6

10:05 am-7:30 pm

1 stop6h 25m

Washington, D.C. Reagan-National

Tue 12/9

12:55 pm-8:30 pm

2 stops10h 35m

$242

San DiegoWashington, D.C.

SAN - IAD

SANIAD

San Diego

Sat 12/6

12:40 pm-10:15 pm

1 stop6h 35m

Washington, D.C. Dulles Intl

Tue 12/9

7:40 am-3:35 pm

2 stops10h 55m

$242

San DiegoWashington, D.C.

SAN - IAD

SANIAD

San Diego

Thu 12/4

10:52 am-9:18 pm

1 stop7h 26m

Washington, D.C. Dulles Intl

Sat 12/6

9:00 am-11:38 am

Nonstop5h 38m

$243

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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

Layovers

Other information

What is the typical price of a round-trip flight between San Diego and Washington, D.C.?

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 $410. 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 $497. 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 $390 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 13% 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 November 2025, prices for San Diego to Washington, D.C. flights are approximately 11% more expensive 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	$178
Fastest flight time	4h 30m
Direct flights	Every day
Airports in Washington, D.C.	3 airports

The best one-way flight to Washington, D.C. from San Diego in the past 72 hours is $178. The best round-trip flight deal from San Diego to Washington, D.C. found on momondo in the last 72 hours is $297.

The fastest flight from San Diego to Washington, D.C. takes 4h 30m

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

There are 3 airports near Washington, D.C.: 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 41m 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 8 operators available for flights from San Diego Airport to Washington, D.C. as of November 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) (24.55% of total bookings). The next most popular plane models are Boeing 737 MAX 9 (22.98%), Boeing 737-900 (15.87%), and Boeing 737 (13.24%).
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 40% of all bookings. The subsequent popular airlines are United Airlines at 33%, Frontier at 10%, 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 3,113 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $145	Free Cancellation	Rating 6.3 8,136 reviews	Search Spirit Airlines flights
Hawaiian Airlines	PriceFrom $158	Free Cancellation	Rating 7.8 2,806 reviews	Search Hawaiian Airlines flights
Delta	PriceFrom $168	Free Cancellation	Rating 7.9 8,005 reviews	Search Delta flights
Southwest	PriceFrom $232	Free Cancellation	Rating 8.0 4,235 reviews	Search Southwest flights
Alaska Airlines	PriceFrom $237	Free Cancellation	Rating 8.0 11,267 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $237	Free Cancellation	Rating 7.4 9,012 reviews	Search United Airlines flights
American Airlines	PriceFrom $256	Free Cancellation	Rating 7.2 11,047 reviews	Search American Airlines flights

Southwest Flights From San Diego to Washington, D.C.
Across 4 Southwest flights from San Diego to Washington, D.C. this week, the average price was $445, with the best Southwest deals starting from $232 round-trip. 4,235 users have rated Southwest on momondo, with an average score of 8.0/10.
Alaska Airlines Flights From San Diego to Washington, D.C.
Across 11,267 Alaska Airlines reviews on momondo, the average score is 8.0/10. Alaska Airlines flies from San Diego to Washington, D.C. about 10 times each week, with ticket deals ranging from $237 to $366. 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

Reston

Manassas

Gaithersburg

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.

An easier way to manage your Washington, D.C. trip

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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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Cheap flights from San Diego to Washington, D.C. from $69

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 12/12. 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

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See travel insights to Washington, D.C. from

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

What is the typical price of a round-trip flight between San Diego and 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 13% 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 November 2025, prices for San Diego to Washington, D.C. flights are approximately 11% more expensive 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, Alaska Airlines, and American Airlines are the most popular carriers operating from San Diego to Washington, D.C.

What airlines fly 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: 53% 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?

14 flights are operational daily from San Diego to Washington, D.C. as of November 2025. The most popular departure time for this route is 8:00AM, with 57% 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 November 2025, there are 101 flights per week flying from San Diego to Washington, D.C.. The most common day of the week flights depart is Mon, with 18% 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

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

Alaska Airlines 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?

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

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

An easier way to manage your Washington, D.C. trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.