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Cheap flights from San Diego to Washington, D.C. from $88

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 10/22. 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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Find the cheapest flights from San Diego to Washington, D.C.

Cheap round-trip flights

United Airlines Logo
6:48 am - 5:26 pmSAN-BWI
7h 38m1 stop
United Airlines Logo
4:12 pm - 10:49 pmBWI-SAN
9h 37m1 stop
$185United Airlines
Find Deal
Tue, Oct 21 - Wed, Oct 29
American Airlines Logo
8:18 am - 6:18 pmSAN-BWI
7h 00m1 stop
American Airlines Logo
5:00 am - 9:09 amBWI-SAN
7h 09m1 stop
$186American Airlines
Find Deal
Sat, Oct 11 - Sat, Oct 18
Frontier Logo
12:04 pm - 5:42 pmSAN-BWI
26h 38m1 stop
Frontier Logo
12:53 pm - 5:54 pmBWI-SAN
8h 01m1 stop
$188Frontier
Find Deal
Thu, Oct 2 - Mon, Oct 6
Frontier Logo
6:35 am - 5:42 pmSAN-BWI
8h 07m1 stop
Frontier Logo
12:53 pm - 5:54 pmBWI-SAN
8h 01m1 stop
$204Frontier
Find Deal
Fri, Oct 3 - Mon, Oct 6
Southwest Logo
6:50 pm - 5:00 amSAN-BWI
7h 10m1 stop
Southwest Logo
8:35 pm - 11:10 pmBWI-SAN
5h 35mnonstop
$233Southwest
Find Deal
Wed, Oct 22 - Wed, Oct 29
Alaska Airlines Logo
1:00 pm - 9:05 pmSAN-DCA
5h 05mnonstop
Alaska Airlines Logo
8:59 am - 11:53 amDCA-SAN
5h 54mnonstop
$237Alaska Airlines
Find Deal
Wed, Nov 12 - Wed, Dec 3
Southwest Logo
9:10 pm - 5:15 amSAN-BWI
5h 05mnonstop
Southwest Logo
8:35 pm - 11:10 pmBWI-SAN
5h 35mnonstop
$237Southwest
Find Deal
Wed, Oct 22 - Wed, Oct 29
Alaska Airlines Logo
9:11 am - 5:13 pmSAN-IAD
5h 02mnonstop
Alaska Airlines Logo
5:40 pm - 8:29 pmIAD-SAN
5h 49mnonstop
$239Alaska Airlines
Find Deal
Fri, Nov 14 - Mon, Nov 17
Hawaiian Airlines Logo
9:25 am - 5:30 pmSAN-IAD
5h 05mnonstop
Hawaiian Airlines Logo
7:35 am - 4:57 pmIAD-SAN
12h 22m1 stop
$247Hawaiian Airlines
Find Deal
Sat, Dec 6 - Wed, Dec 10
Hawaiian Airlines Logo
7:00 am - 9:55 pmSAN-DCA
11h 55m1 stop
Hawaiian Airlines Logo
8:00 am - 4:37 pmDCA-SAN
11h 37m1 stop
$256Hawaiian Airlines
Find Deal
Wed, Jan 14 - Tue, Jan 20

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

Our best Hawaiian Airlines deals on San Diego to Washington, D.C. flight tickets
Hawaiian Airlines
Dec 6
SAN9:25 amSan Diego
5h 05m
IAD5:30 pmWashington, D.C. Dulles Intl
Dec 10
IAD7:35 amWashington, D.C. Dulles Intl
12h 22m
1 stop
SAN4:57 pmSan Diego
$247
Find similar
Hawaiian Airlines
Jan 14
SAN7:00 amSan Diego
11h 55m
1 stop
DCA9:55 pmWashington, D.C. Reagan-National
Jan 20
DCA8:00 amWashington, D.C. Reagan-National
11h 37m
1 stop
SAN4:37 pmSan Diego
$256
Find similar
Hawaiian Airlines
Nov 1
SAN1:00 pmSan Diego
5h 05m
DCA9:05 pmWashington, D.C. Reagan-National
Dec 5
DCA8:59 amWashington, D.C. Reagan-National
5h 54m
SAN11:53 amSan Diego
$257
Find similar

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
Oct 11
SAN8:18 amSan Diego
7h 00m
1 stop
BWI6:18 pmBaltimore/Washington
Oct 18
BWI5:00 amBaltimore/Washington
7h 09m
1 stop
SAN9:09 amSan Diego
$186
Find similar
American Airlines
Oct 11
SAN12:54 pmSan Diego
7h 59m
1 stop
IAD11:53 pmWashington, D.C. Dulles Intl
Oct 18
IAD6:34 amWashington, D.C. Dulles Intl
7h 22m
1 stop
SAN10:56 amSan Diego
$238
Find similar
American Airlines
Oct 16
SAN12:54 pmSan Diego
7h 59m
1 stop
IAD11:53 pmWashington, D.C. Dulles Intl
Oct 21
IAD5:37 pmWashington, D.C. Dulles Intl
7h 51m
1 stop
SAN10:28 pmSan Diego
$251
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momondo Fare Finder

 
Customize your flight search to find flights from San Diego to Washington, D.C. that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated September 17, 2025.
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 10/21

6:48 am-5:26 pm

1 stop7h 38m

Baltimore/Washington

Wed 10/29

4:12 pm-10:49 pm

1 stop9h 37m

$185

San DiegoBaltimore

SAN - BWI

SANBWI

San Diego

Sat 10/11

8:18 am-6:18 pm

1 stop7h 00m

Baltimore/Washington

Sat 10/18

5:00 am-9:09 am

1 stop7h 09m

$186

San DiegoBaltimore

SAN - BWI

SANBWI

San Diego

Thu 10/2

12:04 pm-5:42 pm

1 stop26h 38m

Baltimore/Washington

Mon 10/6

12:53 pm-5:54 pm

1 stop8h 01m

$188

San DiegoBaltimore

SAN - BWI

SANBWI

San Diego

Fri 10/3

6:35 am-5:42 pm

1 stop8h 07m

Baltimore/Washington

Mon 10/6

12:53 pm-5:54 pm

1 stop8h 01m

$204

San DiegoBaltimore

SAN - BWI

SANBWI

San Diego

Wed 10/22

6:50 pm-5:00 am

1 stop7h 10m

Baltimore/Washington

Wed 10/29

8:35 pm-11:10 pm

Nonstop5h 35m

$233

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Wed 11/12

1:00 pm-9:05 pm

Nonstop5h 05m

Washington, D.C. Reagan-National

Wed 12/3

8:59 am-11:53 am

Nonstop5h 54m

$237

San DiegoBaltimore

SAN - BWI

SANBWI

San Diego

Wed 10/22

9:10 pm-5:15 am

Nonstop5h 05m

Baltimore/Washington

Wed 10/29

8:35 pm-11:10 pm

Nonstop5h 35m

$237

San DiegoWashington, D.C.

SAN - IAD

SANIAD

San Diego

Fri 11/14

9:11 am-5:13 pm

Nonstop5h 02m

Washington, D.C. Dulles Intl

Mon 11/17

5:40 pm-8:29 pm

Nonstop5h 49m

$239

San DiegoWashington, D.C.

SAN - IAD

SANIAD

San Diego

Sat 12/6

9:25 am-5:30 pm

Nonstop5h 05m

Washington, D.C. Dulles Intl

Wed 12/10

7:35 am-4:57 pm

1 stop12h 22m

$247

San DiegoWashington, D.C.

SAN - DCA

SANDCA

San Diego

Wed 1/14

7:00 am-9:55 pm

1 stop11h 55m

Washington, D.C. Reagan-National

Tue 1/20

8:00 am-4:37 pm

1 stop11h 37m

$256

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 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 $282. If you’re not able to fly to Washington, D.C. in August, then May is your next best option. Flight prices from San Diego to Washington, D.C. during May average around $322.

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 $413. 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 $610.

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 $509. 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 $396 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 $304 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 6% 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 September 2025, prices for San Diego to Washington, D.C. flights are approximately 2% 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

$138

Fastest flight time

4h 37m

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 $138. 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 37m
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 42m 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.?

  • 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.?

  • 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
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $128Free CancellationRating
5.8
3,173 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $145Free CancellationRating
6.3
8,023 reviews
Search Spirit Airlines flights
Hawaiian AirlinesPriceFrom $158Free CancellationRating
7.8
2,729 reviews
Search Hawaiian Airlines flights
DeltaPriceFrom $198Free CancellationRating
7.9
7,961 reviews
Search Delta flights
Alaska AirlinesPriceFrom $237Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $237Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights
SouthwestPriceFrom $256Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
American AirlinesPriceFrom $276Free CancellationRating
7.2
10,000 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 $367, with the best Alaska Airlines deals starting from $237 round-trip. 10,000 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 4,242 Southwest reviews on momondo, the average score is 8.0/10. Southwest flies from San Diego to Washington, D.C. about 8 times each week, with ticket deals ranging from $256 to $472. Price data is based on momondo searches in the last 72 hours.

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Gettysburg
National Harbor
Arlington
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Towson
Rockville
Manassas
Reston
Fairfax
Glen Burnie
Gaithersburg
Springfield
Linthicum Heights

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

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.
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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.

Airports listed have a maximum distance of 22.4 mi from Washington, D.C.
Washington, D.C. Reagan-National Airport
Washington, D.C. Dulles Intl Airport