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Cheap flights from Washington, D.C. to San Diego from $77

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to San Diego departing on 1/2. 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 Washington, D.C. to San Diego

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:00 am - 12:35 pmBWI-SAN
9h 35m1 stop
Multiple Airlines Logo
1:20 pm - 10:45 pmSAN-BWI
30h 25m2 stops
$222Multiple Airlines
Find Deal
Thu, Nov 13 - Mon, Nov 17
Multiple Airlines Logo
6:00 am - 12:35 pmBWI-SAN
9h 35m1 stop
Multiple Airlines Logo
6:25 am - 12:13 amSAN-BWI
14h 48m2 stops
$226Multiple Airlines
Find Deal
Thu, Nov 13 - Mon, Nov 17
Frontier Logo
8:00 am - 8:07 pmDCA-SAN
15h 07m2 stops
Frontier Logo
6:34 am - 9:59 pmSAN-DCA
12h 25m1 stop
$249Frontier
Find Deal
Tue, Dec 2 - Sat, Dec 6
Hawaiian Airlines Logo
7:34 am - 4:57 pmIAD-SAN
12h 23m1 stop
Hawaiian Airlines Logo
2:00 pm - 10:05 pmSAN-IAD
5h 05mnonstop
$251Hawaiian Airlines
Find Deal
Sat, Dec 6 - Sat, Dec 13
United Airlines Logo
6:59 pm - 11:44 pmIAD-SAN
7h 45m1 stop
United Airlines Logo
12:08 pm - 10:15 pmSAN-IAD
7h 07m1 stop
$252United Airlines
Find Deal
Mon, Nov 24 - Wed, Dec 3
Frontier Logo
2:00 pm - 12:07 pmDCA-SAN
25h 07m1 stop
Frontier Logo
1:37 pm - 4:59 pmSAN-DCA
24h 22m1 stop
$252Frontier
Find Deal
Mon, Nov 3 - Wed, Nov 5
Hawaiian Airlines Logo
7:34 am - 4:57 pmIAD-SAN
12h 23m1 stop
Hawaiian Airlines Logo
2:00 pm - 10:05 pmSAN-IAD
5h 05mnonstop
$253Hawaiian Airlines
Find Deal
Sat, Dec 6 - Sat, Dec 13
Alaska Airlines Logo
5:37 pm - 8:29 pmIAD-SAN
5h 52mnonstop
Alaska Airlines Logo
9:25 am - 5:30 pmSAN-IAD
5h 05mnonstop
$257Alaska Airlines
Find Deal
Wed, Dec 3 - Wed, Dec 10
Alaska Airlines Logo
8:59 am - 11:53 amDCA-SAN
5h 54mnonstop
Alaska Airlines Logo
12:52 pm - 9:02 pmSAN-DCA
5h 10mnonstop
$257Alaska Airlines
Find Deal
Sat, Dec 6 - Fri, Dec 12
United Airlines Logo
9:00 am - 11:38 amIAD-SAN
5h 38mnonstop
United Airlines Logo
9:55 pm - 5:36 amSAN-IAD
4h 41mnonstop
$261United Airlines
Find Deal
Thu, Nov 27 - Tue, Dec 2

Frontier flights from Washington, D.C. to San Diego

Our best Frontier deals on Washington, D.C. to San Diego flight tickets
Frontier
Dec 2
DCA8:00 amWashington, D.C. Reagan-National
15h 07m
2 stops
SAN8:07 pmSan Diego
Dec 6
SAN6:34 amSan Diego
12h 25m
1 stop
DCA9:59 pmWashington, D.C. Reagan-National
$249
Find similar
Frontier
Nov 3
DCA2:00 pmWashington, D.C. Reagan-National
25h 07m
1 stop
SAN12:07 pmSan Diego
Nov 5
SAN1:37 pmSan Diego
24h 22m
1 stop
DCA4:59 pmWashington, D.C. Reagan-National
$252
Find similar
Frontier
Dec 5
DCA6:00 pmWashington, D.C. Reagan-National
8h 59m
1 stop
SAN11:59 pmSan Diego
Jan 5
SAN7:21 pmSan Diego
14h 45m
2 stops
DCA1:06 pmWashington, D.C. Reagan-National
$254
Find similar

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

Our best Hawaiian Airlines deals on Washington, D.C. to San Diego flight tickets
Hawaiian Airlines
Dec 6
IAD7:34 amWashington, D.C. Dulles Intl
12h 23m
1 stop
SAN4:57 pmSan Diego
Dec 13
SAN2:00 pmSan Diego
5h 05m
IAD10:05 pmWashington, D.C. Dulles Intl
$251
Find similar
Hawaiian Airlines
Dec 6
IAD7:34 amWashington, D.C. Dulles Intl
12h 23m
1 stop
SAN4:57 pmSan Diego
Dec 13
SAN2:00 pmSan Diego
5h 05m
IAD10:05 pmWashington, D.C. Dulles Intl
$253
Find similar
Hawaiian Airlines
Nov 19
IAD5:40 pmWashington, D.C. Dulles Intl
5h 49m
SAN8:29 pmSan Diego
Nov 23
SAN9:15 amSan Diego
5h 02m
IAD5:17 pmWashington, D.C. Dulles Intl
$271
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. to San Diego 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 October 30, 2025.
Use the filters below to find and compare flights from Washington, D.C. to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Thu 11/13

6:00 am-12:35 pm

1 stop9h 35m

San Diego

Mon 11/17

1:20 pm-10:45 pm

2 stops30h 25m

$222

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Thu 11/13

6:00 am-12:35 pm

1 stop9h 35m

San Diego

Mon 11/17

6:25 am-12:13 am

2 stops14h 48m

$226

Washington, D.C.San Diego

DCA - SAN

DCASAN

Washington, D.C. Reagan-National

Tue 12/2

8:00 am-8:07 pm

2 stops15h 07m

San Diego

Sat 12/6

6:34 am-9:59 pm

1 stop12h 25m

$249

Washington, D.C.San Diego

IAD - SAN

IADSAN

Washington, D.C. Dulles Intl

Sat 12/6

7:34 am-4:57 pm

1 stop12h 23m

San Diego

Sat 12/13

2:00 pm-10:05 pm

Nonstop5h 05m

$251

Washington, D.C.San Diego

IAD - SAN

IADSAN

Washington, D.C. Dulles Intl

Mon 11/24

6:59 pm-11:44 pm

1 stop7h 45m

San Diego

Wed 12/3

12:08 pm-10:15 pm

1 stop7h 07m

$252

Washington, D.C.San Diego

DCA - SAN

DCASAN

Washington, D.C. Reagan-National

Mon 11/3

2:00 pm-12:07 pm

1 stop25h 07m

San Diego

Wed 11/5

1:37 pm-4:59 pm

1 stop24h 22m

$252

Washington, D.C.San Diego

IAD - SAN

IADSAN

Washington, D.C. Dulles Intl

Sat 12/6

7:34 am-4:57 pm

1 stop12h 23m

San Diego

Sat 12/13

2:00 pm-10:05 pm

Nonstop5h 05m

$253

Washington, D.C.San Diego

IAD - SAN

IADSAN

Washington, D.C. Dulles Intl

Wed 12/3

5:37 pm-8:29 pm

Nonstop5h 52m

San Diego

Wed 12/10

9:25 am-5:30 pm

Nonstop5h 05m

$257

Washington, D.C.San Diego

DCA - SAN

DCASAN

Washington, D.C. Reagan-National

Sat 12/6

8:59 am-11:53 am

Nonstop5h 54m

San Diego

Fri 12/12

12:52 pm-9:02 pm

Nonstop5h 10m

$257

Washington, D.C.San Diego

IAD - SAN

IADSAN

Washington, D.C. Dulles Intl

Thu 11/27

9:00 am-11:38 am

Nonstop5h 38m

San Diego

Tue 12/2

9:55 pm-5:36 am

Nonstop4h 41m

$261

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 San Diego from

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

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 Washington, D.C. and San Diego?

What is the cheapest month to fly to San Diego?

If you are unable to visit San Diego during the month of August, then departing from Washington, D.C. during the month September is also very affordable. Most momondo users find prices during this month for around $357.

What is the cheapest day to depart on your flight to San Diego?

The cheapest day to depart from Washington, D.C. to San Diego is on a Wednesday. Travelers who choose to depart for San Diego on a Wednesday will often find tickets for as low as $393. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $474. These prices are subject to change though, so be sure to set up a Price Alert for flights to San Diego.

What is the cheapest time of day to depart on your flight to San Diego?

The cheapest time of day to fly to San Diego is in the evening when flights can be purchased for as low as $339. Flights at noon are often more expensive with an average ticket price of $499.

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

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

How far in advance should I book a flight to San Diego?

You are more likely to see cheaper flights to San Diego from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $408 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from Washington, D.C. for as low as $332 on momondo.

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

There are 4 cabin classes available to choose from on Washington, D.C. to San Diego 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 Washington, D.C. to San Diego flights?

No. A direct flight is the cheapest option for a flight between Washington, D.C. to San Diego.

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

As of October 2025, prices for Washington, D.C. to San Diego flights are approximately 13% more expensive when compared to flights at the same time last year.

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

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

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

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

Best Price Found

$159

Fastest flight time

5h 15m

Direct flights

Every day

Airports in San Diego

1 airport
The best one-way flight to San Diego from Washington, D.C. in the past 72 hours is $159. The best round-trip flight deal from Washington, D.C. to San Diego found on momondo in the last 72 hours is $279.
The fastest flight from Washington, D.C. to San Diego takes 5h 15m
Direct flights go from Washington, D.C. to San Diego every day.
There is 1 airport near San Diego: San Diego (SAN)
Search flight deals

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

    Washington, D.C. and San Diego are 2268.2 mi apart from one another. By plane, this route typically takes 5h 38m.

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. to San Diego Airport.

  • What documentation or ID do you need to fly to San Diego Airport?

    The necessary travel and health documents for your San Diego Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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

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

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

Compare and see reviews for airlines that fly from Washington, D.C. to San Diego with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $129Free CancellationRating
6.3
8,115 reviews
Search Spirit Airlines flights
FrontierPriceFrom $130Free CancellationRating
5.8
3,123 reviews
Search Frontier flights
Hawaiian AirlinesPriceFrom $158Free CancellationRating
7.8
2,797 reviews
Search Hawaiian Airlines flights
Alaska AirlinesPriceFrom $211Free CancellationRating
8.0
11,214 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $216Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
American AirlinesPriceFrom $246Free CancellationRating
7.2
11,030 reviews
Search American Airlines flights
United AirlinesPriceFrom $257Free CancellationRating
7.4
8,998 reviews
Search United Airlines flights
DeltaPriceFrom $260Free CancellationRating
7.9
7,993 reviews
Search Delta flights

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

    Alaska Airlines operates around 3 flights from Washington, D.C. to San Diego every week. The average price of these flights found in the last 72 hours has been $354, but momondo users have found Alaska Airlines deals from Washington, D.C. to San Diego from as low as $211 round-trip. Alaska Airlines has been scored 8.0/10 in 11,214 reviews.

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

    $216 is the best Southwest flight deal from Washington, D.C. to San Diego found on momondo over the last 72 hours. The average Southwest ticket price found was closer to $473, however, with flight time and availability significantly affecting the price. Southwest (8.0/10 from 4,242 user reviews) flies into San Diego from Washington, D.C. 1 time in an average week so prices can vary.

Traveling to a place near San Diego?

Book flights to San Diego if you plan to visit one of these locations
Coronado
Chula Vista
El Cajon
Julian
National City
La Mesa
Imperial Beach
Poway
Borrego Springs
San Ysidro
Lemon Grove
Alpine
Santee

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to San Diego from Washington, D.C..

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

Flights from Washington, D.C. to San Diego with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

momondo provides multiple filters to help you find the best flight to San Diego from Washington, D.C.. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

If you are simply researching potential flights to San Diego, momondo offers a useful price alert feature which will track prices for flights to San Diego from Washington, D.C. and alert you when they change.

An easier way to manage your San Diego 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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