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Cheap flights from Washington, D.C. to San Diego from $83

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 10/1. 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

Frontier Logo
12:53 pm - 5:54 pmBWI-SAN
8h 01m1 stop
Frontier Logo
7:43 pm - 10:23 amSAN-BWI
11h 40m1 stop
$169Frontier
Find Deal
Mon, Oct 6 - Fri, Oct 10
United Airlines Logo
4:12 pm - 9:07 pmBWI-SAN
7h 55m1 stop
United Airlines Logo
9:00 am - 7:21 pmSAN-BWI
7h 21m1 stop
$180United Airlines
Find Deal
Sat, Nov 1 - Sat, Nov 8
Frontier Logo
6:29 pm - 1:28 pmBWI-SAN
21h 59m1 stop
Frontier Logo
7:23 pm - 10:18 amSAN-BWI
11h 55m1 stop
$184Frontier
Find Deal
Fri, Oct 24 - Sun, Oct 26
United Airlines Logo
7:28 pm - 11:41 pmBWI-SAN
7h 13m1 stop
United Airlines Logo
6:53 am - 7:27 pmSAN-BWI
9h 34m1 stop
$185United Airlines
Find Deal
Wed, Oct 22 - Sat, Oct 25
Southwest Logo
8:05 pm - 10:50 pmBWI-SAN
5h 45mnonstop
Southwest Logo
8:00 am - 7:45 pmSAN-BWI
8h 45m1 stop
$229Southwest
Find Deal
Fri, Nov 14 - Tue, Nov 18
Southwest Logo
7:55 am - 10:35 amBWI-SAN
5h 40mnonstop
Southwest Logo
6:00 pm - 5:00 amSAN-BWI
8h 00m1 stop
$243Southwest
Find Deal
Sat, Oct 18 - Fri, Oct 24
Alaska Airlines Logo
8:59 am - 11:27 amDCA-SAN
5h 28mnonstop
Alaska Airlines Logo
12:12 pm - 8:29 pmSAN-DCA
5h 17mnonstop
$245Alaska Airlines
Find Deal
Wed, Oct 15 - Sat, Oct 18
Hawaiian Airlines Logo
5:40 pm - 8:29 pmIAD-SAN
5h 49mnonstop
Hawaiian Airlines Logo
5:25 pm - 6:23 amSAN-IAD
9h 58m1 stop
$247Hawaiian Airlines
Find Deal
Sat, Nov 1 - Tue, Nov 4
Hawaiian Airlines Logo
8:59 am - 11:27 amDCA-SAN
5h 28mnonstop
Hawaiian Airlines Logo
9:28 am - 9:59 pmSAN-DCA
9h 31m1 stop
$247Hawaiian Airlines
Find Deal
Sat, Oct 25 - Tue, Oct 28
Alaska Airlines Logo
8:59 am - 11:45 amDCA-SAN
5h 46mnonstop
Alaska Airlines Logo
1:00 pm - 9:05 pmSAN-DCA
5h 05mnonstop
$257Alaska Airlines
Find Deal
Fri, Oct 31 - Tue, Nov 4

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

Our best American Airlines deals on Washington, D.C. to San Diego flight tickets
American Airlines
Oct 11
BWI5:00 amBaltimore/Washington
7h 09m
1 stop
SAN9:09 amSan Diego
Oct 18
SAN11:46 amSan Diego
7h 08m
1 stop
BWI9:54 pmBaltimore/Washington
$186
Find similar
American Airlines
Oct 29
IAD6:11 amWashington, D.C. Dulles Intl
8h 53m
1 stop
SAN12:04 pmSan Diego
Nov 4
SAN12:40 pmSan Diego
7h 27m
1 stop
IAD11:07 pmWashington, D.C. Dulles Intl
$251
Find similar
American Airlines
Oct 15
DCA5:00 amWashington, D.C. Reagan-National
8h 45m
1 stop
SAN10:45 amSan Diego
Oct 22
SAN1:16 pmSan Diego
7h 43m
1 stop
DCA11:59 pmWashington, D.C. Reagan-National
$263
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
Nov 1
IAD5:40 pmWashington, D.C. Dulles Intl
5h 49m
SAN8:29 pmSan Diego
Nov 4
SAN5:25 pmSan Diego
9h 58m
1 stop
IAD6:23 amWashington, D.C. Dulles Intl
$247
Find similar
Hawaiian Airlines
Oct 22
IAD5:42 pmWashington, D.C. Dulles Intl
5h 38m
SAN8:20 pmSan Diego
Oct 27
SAN9:11 amSan Diego
5h 02m
IAD5:13 pmWashington, D.C. Dulles Intl
$257
Find similar
Hawaiian Airlines
Oct 11
DCA8:59 amWashington, D.C. Reagan-National
5h 28m
SAN11:27 amSan Diego
Oct 18
SAN12:12 pmSan Diego
5h 17m
DCA8:29 pmWashington, D.C. Reagan-National
$279
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 September 17, 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

Mon 10/6

12:53 pm-5:54 pm

1 stop8h 01m

San Diego

Fri 10/10

7:43 pm-10:23 am

1 stop11h 40m

$169

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Sat 11/1

4:12 pm-9:07 pm

1 stop7h 55m

San Diego

Sat 11/8

9:00 am-7:21 pm

1 stop7h 21m

$180

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Fri 10/24

6:29 pm-1:28 pm

1 stop21h 59m

San Diego

Sun 10/26

7:23 pm-10:18 am

1 stop11h 55m

$184

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Wed 10/22

7:28 pm-11:41 pm

1 stop7h 13m

San Diego

Sat 10/25

6:53 am-7:27 pm

1 stop9h 34m

$185

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Fri 11/14

8:05 pm-10:50 pm

Nonstop5h 45m

San Diego

Tue 11/18

8:00 am-7:45 pm

1 stop8h 45m

$229

BaltimoreSan Diego

BWI - SAN

BWISAN

Baltimore/Washington

Sat 10/18

7:55 am-10:35 am

Nonstop5h 40m

San Diego

Fri 10/24

6:00 pm-5:00 am

1 stop8h 00m

$243

Washington, D.C.San Diego

DCA - SAN

DCASAN

Washington, D.C. Reagan-National

Wed 10/15

8:59 am-11:27 am

Nonstop5h 28m

San Diego

Sat 10/18

12:12 pm-8:29 pm

Nonstop5h 17m

$245

Washington, D.C.San Diego

IAD - SAN

IADSAN

Washington, D.C. Dulles Intl

Sat 11/1

5:40 pm-8:29 pm

Nonstop5h 49m

San Diego

Tue 11/4

5:25 pm-6:23 am

1 stop9h 58m

$247

Washington, D.C.San Diego

DCA - SAN

DCASAN

Washington, D.C. Reagan-National

Sat 10/25

8:59 am-11:27 am

Nonstop5h 28m

San Diego

Tue 10/28

9:28 am-9:59 pm

1 stop9h 31m

$247

Washington, D.C.San Diego

DCA - SAN

DCASAN

Washington, D.C. Reagan-National

Fri 10/31

8:59 am-11:45 am

Nonstop5h 46m

San Diego

Tue 11/4

1:00 pm-9:05 pm

Nonstop5h 05m

$257

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 January 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 $390. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $478. 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 $485.

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

Fly from Washington, D.C. Reagan-National 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 $409 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 $337 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?

You could potentially save up to 23% on your flight if you consider stops on a Washington, D.C. to San Diego flight.

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

As of September 2025, prices for Washington, D.C. to San Diego flights are approximately 1% cheaper 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

$158

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 $158. The best round-trip flight deal from Washington, D.C. to San Diego found on momondo in the last 72 hours is $311.
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 24m.

  • 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 $130Free CancellationRating
5.8
3,173 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $154Free CancellationRating
6.3
8,023 reviews
Search Spirit Airlines flights
Hawaiian AirlinesPriceFrom $158Free CancellationRating
7.8
2,729 reviews
Search Hawaiian Airlines flights
Alaska AirlinesPriceFrom $198Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $222Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
DeltaPriceFrom $256Free CancellationRating
7.9
7,961 reviews
Search Delta flights
American AirlinesPriceFrom $256Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $260Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights

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

    Alaska Airlines operates around 12 flights from Washington, D.C. to San Diego every week. The average price of these flights found in the last 72 hours has been $355, but momondo users have found Alaska Airlines deals from Washington, D.C. to San Diego from as low as $198 round-trip. Alaska Airlines has been scored 8.0/10 in 10,000 reviews.

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

    $222 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 $467, 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. 8 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
Coronado
Chula Vista
El Cajon
Julian
La Mesa
National City
Poway
Imperial Beach
San Ysidro
Borrego Springs
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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