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Cheap flights from Washington, D.C. Dulles Intl Airport to San Diego from $148

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. Dulles Intl Airport to San Diego departing on 3/2. 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. Dulles Intl Airport to San Diego

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
6:30 pm - 12:16 am
IAD
-
SAN
8h 46m1 stop
Frontier Logo
6:55 am - 5:35 pm
SAN
-
IAD
7h 40m1 stop
$251Frontier
Thu, Mar 12 - Thu, Mar 19
Multiple Airlines Logo
5:26 pm - 8:23 pm
IAD
-
SAN
5h 57mnonstop
Multiple Airlines Logo
6:54 am - 8:04 pm
SAN
-
IAD
10h 10m1 stop
$255Multiple Airlines
Thu, Jan 8 - Thu, Jan 15
American Airlines Logo
5:26 pm - 10:50 pm
IAD
-
SAN
8h 24m1 stop
American Airlines Logo
9:21 am - 9:17 pm
SAN
-
IAD
8h 56m1 stop
$256American Airlines
Sat, Jan 10 - Tue, Jan 20
Delta Logo
6:00 am - 10:33 am
IAD
-
SAN
7h 33m1 stop
Delta Logo
11:08 am - 8:45 pm
SAN
-
IAD
6h 37m1 stop
$257Delta
Wed, Jan 14 - Wed, Jan 21
Multiple Airlines Logo
5:37 pm - 12:08 am
IAD
-
SAN
33h 31m2 stops
Multiple Airlines Logo
9:10 am - 5:04 pm
SAN
-
IAD
4h 54mnonstop
$261Multiple Airlines
Sun, Jan 25 - Sun, Feb 1
Alaska Airlines Logo
6:04 pm - 5:20 pm
IAD
-
SAN
26h 16m1 stop
Alaska Airlines Logo
9:10 am - 5:04 pm
SAN
-
IAD
4h 54mnonstop
$262Alaska Airlines
Tue, Jan 13 - Sat, Jan 24
Frontier Logo
7:06 pm - 9:58 pm
IAD
-
SAN
29h 52m2 stops
Frontier Logo
6:25 am - 8:56 pm
SAN
-
IAD
11h 31m1 stop
$264Frontier
Mon, Jan 5 - Sun, Jan 11
Alaska Airlines Logo
7:05 am - 3:46 pm
IAD
-
SAN
11h 41m1 stop
Alaska Airlines Logo
9:28 am - 5:27 pm
SAN
-
IAD
4h 59mnonstop
$266Alaska Airlines
Tue, Mar 3 - Wed, Mar 4
Southwest Logo
9:05 am - 3:55 pm
IAD
-
SAN
9h 50m2 stops
Southwest Logo
9:40 am - 9:55 pm
SAN
-
IAD
9h 15m2 stops
$267Southwest
Wed, Jan 21 - Wed, Jan 28
Hawaiian Airlines Logo
5:26 pm - 8:23 pm
IAD
-
SAN
5h 57mnonstop
Hawaiian Airlines Logo
9:10 am - 5:04 pm
SAN
-
IAD
4h 54mnonstop
$268Hawaiian Airlines
Sun, Jan 25 - Sun, Feb 1

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

Our best American Airlines deals on Washington, D.C. Dulles Intl Airport to San Diego flight tickets
American Airlines
Jan 17
IAD5:26 pmWashington, D.C. Dulles Intl
8h 24m
1 stop
SAN10:50 pmSan Diego
Jan 24
SAN12:40 pmSan Diego
8h 02m
1 stop
IAD11:42 pmWashington, D.C. Dulles Intl
$256
Find similar
American Airlines
Mar 9
IAD5:52 pmWashington, D.C. Dulles Intl
9h 13m
1 stop
SAN12:05 amSan Diego
Mar 17
SAN10:00 pmSan Diego
7h 48m
1 stop
IAD8:48 amWashington, D.C. Dulles Intl
$279
Find similar
American Airlines
Jan 8
IAD11:34 amWashington, D.C. Dulles Intl
8h 20m
1 stop
SAN4:54 pmSan Diego
Jan 11
SAN9:21 amSan Diego
8h 56m
1 stop
IAD9:17 pmWashington, D.C. Dulles Intl
$296
Find similar

Alaska Airlines flights from Washington, D.C. Dulles Intl Airport to San Diego

Our best Alaska Airlines deals on Washington, D.C. Dulles Intl Airport to San Diego flight tickets
Alaska Airlines
Jan 13
IAD5:26 pmWashington, D.C. Dulles Intl
5h 57m
SAN8:23 pmSan Diego
Jan 22
SAN6:15 amSan Diego
31h 11m
1 stop
IAD4:26 pmWashington, D.C. Dulles Intl
$262
Find similar
Alaska Airlines
Mar 3
IAD7:05 amWashington, D.C. Dulles Intl
11h 41m
1 stop
SAN3:46 pmSan Diego
Mar 4
SAN9:28 amSan Diego
4h 59m
IAD5:27 pmWashington, D.C. Dulles Intl
$266
Find similar
Alaska Airlines
Feb 8
IAD5:26 pmWashington, D.C. Dulles Intl
5h 57m
SAN8:23 pmSan Diego
Feb 15
SAN9:28 amSan Diego
4h 59m
IAD5:27 pmWashington, D.C. Dulles Intl
$276
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Dulles Intl Airport 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 December 11, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.San Diego

IAD - SAN

IADSAN

Washington, D.C. Dulles Intl

Thu 3/12

6:30 pm-12:16 am

1 stop8h 46m

San Diego

Thu 3/19

6:55 am-5:35 pm

1 stop7h 40m

$251

Washington, D.C.San Diego

IAD - SAN

IADSAN

Washington, D.C. Dulles Intl

Thu 1/8

5:26 pm-8:23 pm

Nonstop5h 57m

San Diego

Thu 1/15

6:54 am-8:04 pm

1 stop10h 10m

$255

Washington, D.C.San Diego

IAD - SAN

IADSAN

Washington, D.C. Dulles Intl

Sat 1/10

5:26 pm-10:50 pm

1 stop8h 24m

San Diego

Tue 1/20

9:21 am-9:17 pm

1 stop8h 56m

$256

Washington, D.C.San Diego

IAD - SAN

IADSAN

Washington, D.C. Dulles Intl

Wed 1/14

6:00 am-10:33 am

1 stop7h 33m

San Diego

Wed 1/21

11:08 am-8:45 pm

1 stop6h 37m

$257

Washington, D.C.San Diego

IAD - SAN

IADSAN

Washington, D.C. Dulles Intl

Sun 1/25

5:37 pm-12:08 am

2 stops33h 31m

San Diego

Sun 2/1

9:10 am-5:04 pm

Nonstop4h 54m

$261

Washington, D.C.San Diego

IAD - SAN

IADSAN

Washington, D.C. Dulles Intl

Tue 1/13

6:04 pm-5:20 pm

1 stop26h 16m

San Diego

Sat 1/24

9:10 am-5:04 pm

Nonstop4h 54m

$262

Washington, D.C.San Diego

IAD - SAN

IADSAN

Washington, D.C. Dulles Intl

Mon 1/5

7:06 pm-9:58 pm

2 stops29h 52m

San Diego

Sun 1/11

6:25 am-8:56 pm

1 stop11h 31m

$264

Washington, D.C.San Diego

IAD - SAN

IADSAN

Washington, D.C. Dulles Intl

Tue 3/3

7:05 am-3:46 pm

1 stop11h 41m

San Diego

Wed 3/4

9:28 am-5:27 pm

Nonstop4h 59m

$266

Washington, D.C.San Diego

IAD - SAN

IADSAN

Washington, D.C. Dulles Intl

Wed 1/21

9:05 am-3:55 pm

2 stops9h 50m

San Diego

Wed 1/28

9:40 am-9:55 pm

2 stops9h 15m

$267

Washington, D.C.San Diego

IAD - SAN

IADSAN

Washington, D.C. Dulles Intl

Sun 1/25

5:26 pm-8:23 pm

Nonstop5h 57m

San Diego

Sun 2/1

9:10 am-5:04 pm

Nonstop4h 54m

$268

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. Dulles Intl Airport 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 October, then departing from Washington, D.C. Dulles Intl Airport during the month January is also very affordable. Most momondo users find prices during this month for around $369.

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

The cheapest day to depart from Washington, D.C. Dulles Intl Airport 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 $381. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $466. 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 $488.

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

Fly from Washington, D.C. Dulles Intl to San Diego for the best Washington, D.C. Dulles Intl - 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. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $401 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. Dulles Intl Airport for as low as $337 on momondo.

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

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

You could potentially save up to 33% on your flight if you consider stops on a Washington, D.C. Dulles Intl Airport to San Diego flight.

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

As of December 2025, prices for Washington, D.C. Dulles Intl Airport to San Diego flights are approximately 25% cheaper when compared to flights at the same time last year.

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

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport to San Diego (IAD to SAN) flight deals and tips

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

Best Price Found

$208

Fastest flight time

5h 38m

Direct flights

Every day

Airports in San Diego

1 airport
The best one-way flight to San Diego from Washington, D.C. Dulles Intl Airport in the past 72 hours is $208. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to San Diego found on momondo in the last 72 hours is $313.
The fastest flight from Washington, D.C. Dulles Intl Airport to San Diego takes 5h 38m
Direct flights go from Washington, D.C. Dulles Intl Airport to San Diego every day.
There is 1 airport in San Diego. From Washington, D.C. Dulles Intl Airport there are direct flights to San Diego (SAN).
Search flight deals

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

    There are 2245.8 mi between Washington, D.C. Dulles Intl and San Diego. 5h 38m is a normal flight duration for this route.

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

    Prices for flights from Washington, D.C. Dulles Intl Airport to San Diego Airport are updated daily.

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to San Diego Airport.

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

    The travel and health documents required for your trip to San Diego Airport 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 San Diego Airport. 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 Washington, D.C. Dulles Intl Airport to San Diego?

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

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

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to San Diego with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $145Free CancellationRating
5.8
3,084 reviews
Search Frontier flights
Hawaiian AirlinesPriceFrom $158Free CancellationRating
7.8
2,817 reviews
Search Hawaiian Airlines flights
Alaska AirlinesPriceFrom $229Free CancellationRating
8.0
11,431 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $256Free CancellationRating
7.9
4,253 reviews
Search Southwest flights
American AirlinesPriceFrom $256Free CancellationRating
7.2
11,049 reviews
Search American Airlines flights
United AirlinesPriceFrom $257Free CancellationRating
7.4
9,095 reviews
Search United Airlines flights
DeltaPriceFrom $276Free CancellationRating
7.9
8,005 reviews
Search Delta flights

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

    Alaska Airlines flies from Washington, D.C. Dulles Intl Airport to San Diego around 3 times per week, with 11,431 momondo users rating the airline 8.0/10. The cheapest Alaska Airlines deal from Washington, D.C. Dulles Intl Airport to San Diego in the last 72 hours was $229 (round-trip), much lower than the average airfare cost of $350 for Alaska Airlines flights on this route.

  • Hawaiian Airlines Flights From Washington, D.C. Dulles Intl Airport to San Diego

    Hawaiian Airlines (7.8/10 from 2,817 reviews) operates around 7 flights from Washington, D.C. Dulles Intl Airport to San Diego in any given week. The average Hawaiian Airlines airfare for this route is around $345, with deals from around $158 rare but found on momondo. Referenced prices are for round-trip Washington, D.C. Dulles Intl Airport to San Diego flight searches in the last 72 hours.

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
Imperial Beach
Poway
La Mesa
Borrego Springs
San Ysidro
Alpine
Lemon Grove
Santee

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Washington, D.C. to San Diego. Millions of users trust and use momondo every year so you are in good hands.

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

All flight searches from Washington, D.C. to San Diego on momondo can be filtered to show those which offer flexible booking policies.

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?

Yes momondo offers price alerts on flights to San Diego from Washington, D.C.. 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.

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