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Cheap flights from Washington, D.C. to San Diego from $52

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 3/25. 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

These are some of the best round-trip flight deals from Washington, D.C. to San Diego that have been recently found on momondo from popular airlines, departing in the coming months.
7:00 am - 12:14 amDCA-SAN
20h 14m1 stop
10:38 am - 9:59 pmSAN-DCA
8h 21m1 stop
$127Frontier
Find Deal
Sat, Apr 26 - Sat, May 3
6:00 pm - 12:20 amDCA-SAN
9h 20m1 stop
6:55 am - 4:59 pmSAN-DCA
7h 04m1 stop
$129Frontier
Find Deal
Mon, Mar 24 - Wed, Mar 26
5:45 am - 4:44 pmBWI-SAN
13h 59m1 stop
6:15 am - 4:47 pmSAN-BWI
7h 32m1 stop
$149Spirit Airlines
Find Deal
Wed, Mar 5 - Wed, Mar 12
6:00 am - 2:34 pmBWI-SAN
11h 34m1 stop
8:11 am - 5:25 amSAN-BWI
18h 14m1 stop
$153Spirit Airlines
Find Deal
Wed, Mar 19 - Wed, Mar 26
1:10 pm - 3:48 pmIAD-SAN
5h 38mnonstop
8:05 am - 3:53 pmSAN-IAD
4h 48mnonstop
$238United Airlines
Find Deal
Tue, Apr 1 - Tue, Apr 29
6:20 pm - 9:02 pmIAD-SAN
5h 42mnonstop
6:50 pm - 5:16 amSAN-IAD
7h 26m1 stop
$243United Airlines
Find Deal
Tue, Mar 18 - Wed, Mar 19
5:18 pm - 8:19 pmIAD-SAN
6h 01mnonstop
7:55 pm - 4:30 pmSAN-IAD
17h 35m1 stop
$247Alaska Airlines
Find Deal
Wed, Mar 12 - Tue, Mar 18
7:00 am - 4:34 pmIAD-SAN
12h 34m1 stop
8:50 am - 4:58 pmSAN-IAD
5h 08mnonstop
$257Alaska Airlines
Find Deal
Tue, Mar 18 - Tue, Mar 25
6:47 am - 11:10 amDCA-SAN
7h 23m1 stop
7:30 pm - 7:00 amSAN-DCA
8h 30m1 stop
$297American Airlines
Find Deal
Wed, Mar 12 - Sat, Mar 22
5:00 am - 10:27 amDCA-SAN
8h 27m1 stop
10:37 pm - 8:55 amSAN-DCA
7h 18m1 stop
$317American Airlines
Find Deal
Thu, Mar 13 - Sun, Mar 16

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

Our best Frontier deals on Washington, D.C. to San Diego flight tickets
Frontier
Apr 26
DCA7:00 amWashington, D.C. Reagan-National
20h 14m
1 stop
SAN12:14 amSan Diego
May 3
SAN10:38 amSan Diego
8h 21m
1 stop
DCA9:59 pmWashington, D.C. Reagan-National
Frontier
Mar 24
DCA6:00 pmWashington, D.C. Reagan-National
9h 20m
1 stop
SAN12:20 amSan Diego
Mar 26
SAN6:55 amSan Diego
7h 04m
1 stop
DCA4:59 pmWashington, D.C. Reagan-National
Frontier
Apr 16
DCA7:00 amWashington, D.C. Reagan-National
7h 29m
1 stop
SAN11:29 amSan Diego
Apr 23
SAN6:25 amSan Diego
12h 34m
1 stop
DCA9:59 pmWashington, D.C. Reagan-National

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

Our best Spirit Airlines deals on Washington, D.C. to San Diego flight tickets
Spirit Airlines
Mar 5
BWI5:45 amBaltimore/Washington
13h 59m
1 stop
SAN4:44 pmSan Diego
Mar 12
SAN6:15 amSan Diego
7h 32m
1 stop
BWI4:47 pmBaltimore/Washington
Spirit Airlines
Mar 19
BWI6:00 amBaltimore/Washington
11h 34m
1 stop
SAN2:34 pmSan Diego
Mar 26
SAN8:11 amSan Diego
18h 14m
1 stop
BWI5:25 amBaltimore/Washington
Spirit Airlines
Mar 12
BWI11:12 amBaltimore/Washington
23h 18m
2 stops
SAN7:30 amSan Diego
Mar 18
SAN8:25 amSan Diego
17h 45m
1 stop
BWI5:10 amBaltimore/Washington

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 cheapest month to fly to San Diego?

If you are unable to visit San Diego during the month of May, then departing from Washington, D.C. during the month August is also very affordable. Most momondo users find prices during this month for around $342.

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 Tuesday. Travelers who choose to depart for San Diego on a Tuesday will often find tickets for as low as $386. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $459. 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 $468.

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 22 weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $409 when searching 22 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 $316 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.

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

As of February 2025, prices for Washington, D.C. to San Diego flights are approximately 15% 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

$52

Fastest flight time

5h 12m

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 $52. The best round-trip flight deal from Washington, D.C. to San Diego found on momondo in the last 72 hours is $127.
The fastest flight from Washington, D.C. to San Diego takes 5h 12m
Direct flights go from Washington, D.C. to San Diego every day.
There is 1 airport near San Diego: San Diego (SAN)

  • 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 12m.

  • 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
FrontierPriceFrom $84Free CancellationRating
6.0
3,355 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $110Free CancellationRating
6.3
8,013 reviews
Search Spirit Airlines flights
DeltaPriceFrom $154Free CancellationRating
8.0
8,220 reviews
Search Delta flights
Alaska AirlinesPriceFrom $198Free CancellationRating
8.0
9,692 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $257Free CancellationRating
7.4
8,766 reviews
Search United Airlines flights
American AirlinesPriceFrom $271Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $291Free CancellationRating
8.1
4,411 reviews
Search Southwest flights
  • Southwest Flights From Washington, D.C. to San Diego

    Southwest operates around 8 flights from Washington, D.C. to San Diego every week. The average price of these flights found in the last 72 hours has been $521, but momondo users have found Southwest deals from Washington, D.C. to San Diego from as low as $291 round-trip. Southwest has been scored 8.1/10 in 4,411 reviews.

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

    $198 is the best Alaska Airlines flight deal from Washington, D.C. to San Diego found on momondo over the last 72 hours. The average Alaska Airlines ticket price found was closer to $360, however, with flight time and availability significantly affecting the price. Alaska Airlines (8.0/10 from 9,691 user reviews) flies into San Diego from Washington, D.C. 7 times 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
Chula Vista
El Cajon
Coronado
Julian
La Mesa
National City
Lemon Grove
San Ysidro
Imperial Beach
Borrego Springs
Alpine
Poway
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.


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