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Cheap flights from Washington, D.C. Dulles Intl Airport to San Diego from $128

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 11/25. 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. Dulles Intl Airport to San Diego

Cheap round-trip flights

Frontier Logo
10:11 am - 6:48 pmIAD-SAN
11h 37m1 stop
Frontier Logo
7:23 pm - 9:09 amSAN-IAD
10h 46m1 stop
$242Frontier
Find Deal
Fri, Oct 10 - Sun, Oct 12
United Airlines Logo
9:00 am - 11:38 amIAD-SAN
5h 38mnonstop
United Airlines Logo
12:07 pm - 10:12 pmSAN-IAD
7h 05m1 stop
$243United Airlines
Find Deal
Wed, Nov 5 - Thu, Nov 13
Frontier Logo
10:11 am - 6:48 pmIAD-SAN
11h 37m1 stop
Frontier Logo
7:23 pm - 9:09 amSAN-IAD
10h 46m1 stop
$244Frontier
Find Deal
Fri, Oct 17 - Sun, Oct 26
United Airlines Logo
6:59 pm - 11:44 pmIAD-SAN
7h 45m1 stop
United Airlines Logo
10:00 pm - 5:42 amSAN-IAD
4h 42mnonstop
$247United Airlines
Find Deal
Fri, Nov 7 - Tue, Nov 11
American Airlines Logo
6:34 am - 2:23 pmIAD-SAN
10h 49m2 stops
American Airlines Logo
10:31 pm - 9:55 amSAN-IAD
8h 24m1 stop
$256American Airlines
Find Deal
Sat, Oct 25 - Tue, Oct 28
Alaska Airlines Logo
5:42 pm - 8:20 pmIAD-SAN
5h 38mnonstop
Alaska Airlines Logo
9:11 am - 5:13 pmSAN-IAD
5h 02mnonstop
$257Alaska Airlines
Find Deal
Wed, Oct 22 - Mon, Oct 27
American Airlines Logo
1:58 pm - 9:04 pmIAD-SAN
10h 06m1 stop
American Airlines Logo
6:15 am - 4:11 pmSAN-IAD
6h 56m1 stop
$261American Airlines
Find Deal
Sat, Nov 8 - Sun, Nov 16
Delta Logo
7:35 am - 2:11 pmIAD-SAN
9h 36m1 stop
Delta Logo
1:06 pm - 11:29 pmSAN-IAD
7h 23m1 stop
$277Delta
Find Deal
Mon, Oct 20 - Wed, Nov 19
Alaska Airlines Logo
5:40 pm - 8:29 pmIAD-SAN
5h 49mnonstop
Alaska Airlines Logo
9:11 am - 5:13 pmSAN-IAD
5h 02mnonstop
$286Alaska Airlines
Find Deal
Sun, Nov 2 - Wed, Nov 5
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
$287Hawaiian Airlines
Find Deal
Thu, Nov 13 - Mon, Nov 17

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

Our best Frontier deals on Washington, D.C. Dulles Intl Airport to San Diego flight tickets
Frontier
Oct 10
IAD10:11 amWashington, D.C. Dulles Intl
11h 37m
1 stop
SAN6:48 pmSan Diego
Oct 12
SAN7:23 pmSan Diego
10h 46m
1 stop
IAD9:09 amWashington, D.C. Dulles Intl
$242
Find similar
Frontier
Sep 29
IAD10:17 amWashington, D.C. Dulles Intl
10h 37m
1 stop
SAN5:54 pmSan Diego
Oct 19
SAN7:23 pmSan Diego
10h 46m
1 stop
IAD9:09 amWashington, D.C. Dulles Intl
$244
Find similar
Frontier
Sep 29
IAD10:17 amWashington, D.C. Dulles Intl
10h 37m
1 stop
SAN5:54 pmSan Diego
Oct 19
SAN7:23 pmSan Diego
17h 16m
2 stops
IAD3:39 pmWashington, D.C. Dulles Intl
$252
Find similar

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

Our best Southwest deals on Washington, D.C. Dulles Intl Airport to San Diego flight tickets
Southwest
Oct 22
IAD7:40 amWashington, D.C. Dulles Intl
7h 10m
1 stop
SAN11:50 amSan Diego
Oct 26
SAN8:55 pmSan Diego
13h 05m
1 stop
IAD1:00 pmWashington, D.C. Dulles Intl
$262
Find similar
Southwest
Nov 6
IAD7:50 pmWashington, D.C. Dulles Intl
14h 25m
1 stop
SAN7:15 amSan Diego
Nov 12
SAN9:00 amSan Diego
10h 10m
2 stops
IAD10:10 pmWashington, D.C. Dulles Intl
$268
Find similar
Southwest
Nov 6
IAD7:50 pmWashington, D.C. Dulles Intl
14h 25m
1 stop
SAN7:15 amSan Diego
Nov 9
SAN6:30 amSan Diego
9h 30m
1 stop
IAD7:00 pmWashington, D.C. Dulles Intl
$282
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 September 16, 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

Fri 10/10

10:11 am-6:48 pm

1 stop11h 37m

San Diego

Sun 10/12

7:23 pm-9:09 am

1 stop10h 46m

$242

Washington, D.C.San Diego

IAD - SAN

IADSAN

Washington, D.C. Dulles Intl

Wed 11/5

9:00 am-11:38 am

Nonstop5h 38m

San Diego

Thu 11/13

12:07 pm-10:12 pm

1 stop7h 05m

$243

Washington, D.C.San Diego

IAD - SAN

IADSAN

Washington, D.C. Dulles Intl

Fri 10/17

10:11 am-6:48 pm

1 stop11h 37m

San Diego

Sun 10/26

7:23 pm-9:09 am

1 stop10h 46m

$244

Washington, D.C.San Diego

IAD - SAN

IADSAN

Washington, D.C. Dulles Intl

Fri 11/7

6:59 pm-11:44 pm

1 stop7h 45m

San Diego

Tue 11/11

10:00 pm-5:42 am

Nonstop4h 42m

$247

Washington, D.C.San Diego

IAD - SAN

IADSAN

Washington, D.C. Dulles Intl

Sat 10/25

6:34 am-2:23 pm

2 stops10h 49m

San Diego

Tue 10/28

10:31 pm-9:55 am

1 stop8h 24m

$256

Washington, D.C.San Diego

IAD - SAN

IADSAN

Washington, D.C. Dulles Intl

Wed 10/22

5:42 pm-8:20 pm

Nonstop5h 38m

San Diego

Mon 10/27

9:11 am-5:13 pm

Nonstop5h 02m

$257

Washington, D.C.San Diego

IAD - SAN

IADSAN

Washington, D.C. Dulles Intl

Sat 11/8

1:58 pm-9:04 pm

1 stop10h 06m

San Diego

Sun 11/16

6:15 am-4:11 pm

1 stop6h 56m

$261

Washington, D.C.San Diego

IAD - SAN

IADSAN

Washington, D.C. Dulles Intl

Mon 10/20

7:35 am-2:11 pm

1 stop9h 36m

San Diego

Wed 11/19

1:06 pm-11:29 pm

1 stop7h 23m

$277

Washington, D.C.San Diego

IAD - SAN

IADSAN

Washington, D.C. Dulles Intl

Sun 11/2

5:40 pm-8:29 pm

Nonstop5h 49m

San Diego

Wed 11/5

9:11 am-5:13 pm

Nonstop5h 02m

$286

Washington, D.C.San Diego

IAD - SAN

IADSAN

Washington, D.C. Dulles Intl

Thu 11/13

5:40 pm-8:29 pm

Nonstop5h 49m

San Diego

Mon 11/17

5:25 pm-6:23 am

1 stop9h 58m

$287

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 February, then departing from Washington, D.C. Dulles Intl Airport during the month August is also very affordable. Most momondo users find prices during this month for around $375.

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 $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. 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 $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. 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 23% 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 September 2025, prices for Washington, D.C. Dulles Intl Airport to San Diego flights are approximately 23% more expensive 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

$162

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. Dulles Intl Airport in the past 72 hours is $162. 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 $316.
The fastest flight from Washington, D.C. Dulles Intl Airport to San Diego takes 5h 15m
Direct flights go from Washington, D.C. Dulles Intl Airport to San Diego every day.
There is 1 airport near San Diego: 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 24m 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
3,174 reviews
Search Frontier flights
Hawaiian AirlinesPriceFrom $158Free CancellationRating
7.8
2,724 reviews
Search Hawaiian Airlines flights
Alaska AirlinesPriceFrom $236Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
DeltaPriceFrom $256Free CancellationRating
7.9
7,957 reviews
Search Delta flights
American AirlinesPriceFrom $256Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $256Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
United AirlinesPriceFrom $260Free CancellationRating
7.4
8,924 reviews
Search United Airlines 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 10,000 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 $236 (round-trip), much lower than the average airfare cost of $360 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 2,724 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 $346, 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
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?

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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