Cheap flights from San Diego to Washington, D.C. from $80

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 3/9. 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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Cheap round-trip flights

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Frontier Logo
6:55 am - 5:36 pm
SAN
-
BWI
7h 41m
1 stop
Frontier Logo
3:19 pm - 1:13 pm
BWI
-
SAN
24h 54m
2 stops
$192Frontier
Fri, Mar 6 - Tue, Mar 10
Southwest Logo
9:40 pm - 5:30 am
SAN
-
BWI
4h 50mnonstop
Southwest Logo
8:15 pm - 11:05 pm
BWI
-
SAN
5h 50mnonstop
$217Southwest
Sat, Mar 7 - Sat, Mar 14
Hawaiian Airlines Logo
9:28 am - 5:27 pm
SAN
-
IAD
4h 59mnonstop
Hawaiian Airlines Logo
6:20 pm - 9:19 pm
IAD
-
SAN
5h 59mnonstop
$226Hawaiian Airlines
Fri, Mar 6 - Fri, Mar 13
Alaska Airlines Logo
9:28 am - 5:27 pm
SAN
-
IAD
4h 59mnonstop
Alaska Airlines Logo
6:20 pm - 9:19 pm
IAD
-
SAN
5h 59mnonstop
$227Alaska Airlines
Wed, Mar 11 - Mon, Mar 16
American Airlines Logo
1:03 pm - 11:56 pm
SAN
-
BWI
7h 53m
1 stop
American Airlines Logo
7:17 pm - 11:56 pm
BWI
-
SAN
7h 39m
1 stop
$228American Airlines
Sat, Apr 18 - Wed, Apr 22
Hawaiian Airlines Logo
3:45 pm - 5:40 am
SAN
-
IAD
10h 55m
1 stop
Hawaiian Airlines Logo
6:20 pm - 9:19 pm
IAD
-
SAN
5h 59mnonstop
$231Hawaiian Airlines
Fri, Mar 6 - Wed, Mar 11
Alaska Airlines Logo
9:35 am - 5:41 pm
SAN
-
IAD
5h 06mnonstop
Alaska Airlines Logo
6:47 pm - 9:31 pm
IAD
-
SAN
5h 44mnonstop
$237Alaska Airlines
Wed, Apr 29 - Mon, May 11
United Airlines Logo
1:05 pm - 8:56 pm
SAN
-
IAD
4h 51mnonstop
United Airlines Logo
6:03 pm - 12:14 am
IAD
-
SAN
9h 11m
1 stop
$245United Airlines
Tue, Mar 10 - Sat, Mar 14
American Airlines Logo
1:12 pm - 10:55 pm
SAN
-
BWI
6h 43m
1 stop
American Airlines Logo
12:38 pm - 6:27 pm
BWI
-
SAN
8h 49m
1 stop
$247American Airlines
Tue, Feb 24 - Wed, Mar 4
United Airlines Logo
11:03 am - 11:12 pm
SAN
-
BWI
9h 09m
2 stops
United Airlines Logo
6:25 pm - 11:40 pm
BWI
-
SAN
8h 15m
1 stop
$252United Airlines
Wed, Mar 11 - Sun, Mar 15

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
Mar 6
SAN9:28 amSan Diego
4h 59m
IAD5:27 pmWashington, D.C. Dulles Intl
Mar 13
IAD6:20 pmWashington, D.C. Dulles Intl
5h 59m
SAN9:19 pmSan Diego
$226
Hawaiian Airlines
Mar 6
SAN3:45 pmSan Diego
10h 55m
1 stop
IAD5:40 amWashington, D.C. Dulles Intl
Mar 11
IAD6:20 pmWashington, D.C. Dulles Intl
5h 59m
SAN9:19 pmSan Diego
$231
Hawaiian Airlines
Mar 6
SAN3:45 pmSan Diego
10h 55m
1 stop
IAD5:40 amWashington, D.C. Dulles Intl
Mar 11
IAD7:05 amWashington, D.C. Dulles Intl
11h 41m
1 stop
SAN3:46 pmSan Diego
$235

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
Mar 25
SAN10:30 pmSan Diego
7h 21m
1 stop
DCA8:51 amWashington, D.C. Reagan-National
Apr 1
DCA2:33 pmWashington, D.C. Reagan-National
8h 32m
1 stop
SAN8:05 pmSan Diego
$237
United Airlines
Mar 10
SAN1:05 pmSan Diego
4h 51m
IAD8:56 pmWashington, D.C. Dulles Intl
Mar 14
IAD6:03 pmWashington, D.C. Dulles Intl
9h 11m
1 stop
SAN12:14 amSan Diego
$245
United Airlines
Mar 11
SAN11:03 amSan Diego
9h 09m
2 stops
BWI11:12 pmBaltimore/Washington
Mar 15
BWI6:25 pmBaltimore/Washington
8h 15m
1 stop
SAN11:40 pmSan Diego
$252

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 February 8, 2026.
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

Fri 3/6

6:55 am-5:36 pm

1 stop7h 41m

Baltimore/Washington

Tue 3/10

3:19 pm-1:13 pm

2 stops24h 54m

$192

San DiegoBaltimore

SAN - BWI

SANBWI

San Diego

Sat 3/7

9:40 pm-5:30 am

Nonstop4h 50m

Baltimore/Washington

Sat 3/14

8:15 pm-11:05 pm

Nonstop5h 50m

$217

San DiegoWashington, D.C.

SAN - IAD

SANIAD

San Diego

Fri 3/6

9:28 am-5:27 pm

Nonstop4h 59m

Washington, D.C. Dulles Intl

Fri 3/13

6:20 pm-9:19 pm

Nonstop5h 59m

$226

San DiegoWashington, D.C.

SAN - IAD

SANIAD

San Diego

Wed 3/11

9:28 am-5:27 pm

Nonstop4h 59m

Washington, D.C. Dulles Intl

Mon 3/16

6:20 pm-9:19 pm

Nonstop5h 59m

$227

San DiegoBaltimore

SAN - BWI

SANBWI

San Diego

Sat 4/18

1:03 pm-11:56 pm

1 stop7h 53m

Baltimore/Washington

Wed 4/22

7:17 pm-11:56 pm

1 stop7h 39m

$228

San DiegoWashington, D.C.

SAN - IAD

SANIAD

San Diego

Fri 3/6

3:45 pm-5:40 am

1 stop10h 55m

Washington, D.C. Dulles Intl

Wed 3/11

6:20 pm-9:19 pm

Nonstop5h 59m

$231

San DiegoWashington, D.C.

SAN - IAD

SANIAD

San Diego

Wed 4/29

9:35 am-5:41 pm

Nonstop5h 06m

Washington, D.C. Dulles Intl

Mon 5/11

6:47 pm-9:31 pm

Nonstop5h 44m

$237

San DiegoWashington, D.C.

SAN - IAD

SANIAD

San Diego

Tue 3/10

1:05 pm-8:56 pm

Nonstop4h 51m

Washington, D.C. Dulles Intl

Sat 3/14

6:03 pm-12:14 am

1 stop9h 11m

$245

San DiegoBaltimore

SAN - BWI

SANBWI

San Diego

Tue 2/24

1:12 pm-10:55 pm

1 stop6h 43m

Baltimore/Washington

Wed 3/4

12:38 pm-6:27 pm

1 stop8h 49m

$247

San DiegoBaltimore

SAN - BWI

SANBWI

San Diego

Wed 3/11

11:03 am-11:12 pm

2 stops9h 09m

Baltimore/Washington

Sun 3/15

6:25 pm-11:40 pm

1 stop8h 15m

$252

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 $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 $591.

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

At noon 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 $377. Flying to Washington, D.C. at noon 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 $480. 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 Washington, D.C. Reagan-National 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 $395 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 $307 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 14% 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 February 2026, prices for San Diego to Washington, D.C. flights are approximately 34% 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

$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 $277.
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 Baltimore/Washington (BWI), Washington, D.C. Dulles Intl (IAD).
  • 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.?

  • 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
Spirit AirlinesPriceFrom $113Free CancellationRating
6.3
8,430 reviews
Search Spirit Airlines flights
FrontierPriceFrom $113Free CancellationRating
5.7
3,052 reviews
Search Frontier flights
DeltaPriceFrom $138Free CancellationRating
7.9
8,172 reviews
Search Delta flights
Hawaiian AirlinesPriceFrom $158Free CancellationRating
7.8
2,829 reviews
Search Hawaiian Airlines flights
Alaska AirlinesPriceFrom $197Free CancellationRating
8.0
11,851 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $216Free CancellationRating
8.0
4,280 reviews
Search Southwest flights
United AirlinesPriceFrom $220Free CancellationRating
7.4
9,254 reviews
Search United Airlines flights
American AirlinesPriceFrom $256Free CancellationRating
7.2
11,249 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 $349, with the best Alaska Airlines deals starting from $197 round-trip. 11,851 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 4,280 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 $216 to $416. 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
National Harbor
Gettysburg
Arlington
Waldorf
Woodbridge
Laurel
Colonial Beach
Tysons
Silver Spring
Towson
Fredericksburg
Gaithersburg
Rockville
Manassas
Springfield
Fairfax
Linthicum Heights
Bethesda
Glen Burnie

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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1 adult
Tue 3/10
Tue 3/17

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.