What airlines fly to San Diego?

United Airlines, Southwest and Alaska Airlines are the top three most popular airlines that fly to San Diego from District of Columbia according to our data. United Airlines is the first choice among our users, with 37% of people opting to fly with this airline when traveling to San Diego. Keep in mind that there are 8 different airlines that fly to San Diego on a routine basis, so you have a few additional options to choose from.

How many flights depart from District of Columbia to San Diego on average per week?

65 flights are operational weekly from District of Columbia to San Diego as of January 2026. The most popular departure day for this route is Mon, with 20% of flights per week taking off on this day.

How many flights depart from District of Columbia to San Diego on average per day?

As of January 2026, 9 flights take off from District of Columbia and land in San Diego each day. The most common flight departure time for this route is 5:00PM, with 55% of daily flights taking off in the afternoon.

What is the cheapest airline that flies from District of Columbia to San Diego?

Alaska Airlines, Southwest, and Delta are the most popular carriers operating from District of Columbia to San Diego

When did momondo last update prices for flights from District of Columbia to San Diego Airport?

Prices for flights from District of Columbia to San Diego Airport are refreshed on a daily basis.

How many operators does momondo search for flights from District of Columbia to San Diego Airport?

The number of operators available for flights from District of Columbia to San Diego Airport is 7 as of January 2026.

How old do you have to be to fly from District of Columbia 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 District of Columbia to San Diego Airport.

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

The required travel and health documents for your San Diego Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Diego Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$139 Cheap Flights from District of Columbia to San Diego in 2026

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Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:00 am - 12:09 am

DCA

SAN

19h 09m

1 stop

6:25 am - 9:59 pm

SAN

DCA

12h 34m

1 stop

$240Frontier

Mon, Mar 9 - Sat, Mar 14

6:00 pm - 12:09 am

DCA

SAN

9h 09m

1 stop

9:00 am - 9:59 pm

SAN

DCA

9h 59m

1 stop

$241Frontier

Wed, Mar 11 - Mon, Mar 16

5:50 am - 11:35 am

IAD

SAN

8h 45m

2 stops

7:35 am - 5:20 pm

SAN

IAD

6h 45m

1 stop

$242Southwest

Tue, Mar 10 - Wed, Mar 18

2:00 pm - 12:08 am

DCA

SAN

13h 08m

1 stop

11:49 am - 9:59 pm

SAN

DCA

7h 10m

1 stop

$242Frontier

Thu, Jan 22 - Mon, Jan 26

2:00 pm - 12:08 am

DCA

SAN

13h 08m

1 stop

6:30 am - 4:59 pm

SAN

DCA

7h 29m

1 stop

$243Frontier

Thu, Jan 22 - Mon, Jan 26

6:03 am - 11:14 am

IAD

SAN

8h 11m

1 stop

1:05 pm - 8:56 pm

SAN

IAD

4h 51mnonstop

$246United Airlines

Thu, Feb 19 - Tue, Feb 24

6:04 pm - 10:07 am

IAD

SAN

19h 03m

1 stop

9:10 am - 5:04 pm

SAN

IAD

4h 54mnonstop

$247Alaska Airlines

Tue, Feb 3 - Tue, Feb 10

3:24 pm - 10:26 pm

DCA

SAN

10h 02m

1 stop

10:35 pm - 8:59 am

SAN

DCA

7h 24m

1 stop

$247American Airlines

Mon, Feb 2 - Sat, Feb 21

5:50 pm - 8:47 pm

IAD

SAN

5h 57mnonstop

1:05 pm - 8:56 pm

SAN

IAD

4h 51mnonstop

$251United Airlines

Wed, Feb 11 - Sat, Feb 14

5:30 am - 1:35 pm

IAD

SAN

11h 05m

2 stops

2:55 pm - 12:15 am

SAN

IAD

6h 20m

1 stop

$252Southwest

Tue, Feb 17 - Mon, Mar 16

Alaska Airlines flights from District of Columbia to San Diego

Our best Alaska Airlines deals on District of Columbia to San Diego flight tickets

Alaska Airlines

Feb 7

IAD6:04 pmWashington, D.C. Dulles Intl

19h 03m

1 stop

SAN10:07 amSan Diego

Feb 14

SAN9:28 amSan Diego

4h 59m

IAD5:27 pmWashington, D.C. Dulles Intl

$247

Alaska Airlines

Mar 4

DCA8:59 amWashington, D.C. Reagan-National

5h 44m

SAN11:43 amSan Diego

Mar 13

SAN12:45 pmSan Diego

5h 17m

DCA9:02 pmWashington, D.C. Reagan-National

$257

Alaska Airlines

Feb 4

IAD5:26 pmWashington, D.C. Dulles Intl

5h 57m

SAN8:23 pmSan Diego

Feb 18

SAN8:26 pmSan Diego

17h 54m

1 stop

IAD5:20 pmWashington, D.C. Dulles Intl

$262

Delta flights from District of Columbia to San Diego

Our best Delta deals on District of Columbia to San Diego flight tickets

Delta

Feb 9

DCA4:38 pmWashington, D.C. Reagan-National

9h 09m

1 stop

SAN10:47 pmSan Diego

Feb 17

SAN10:10 pmSan Diego

7h 43m

1 stop

DCA8:53 amWashington, D.C. Reagan-National

$276

Delta

Feb 3

IAD5:26 pmWashington, D.C. Dulles Intl

8h 05m

1 stop

SAN10:31 pmSan Diego

Feb 11

SAN6:15 amSan Diego

7h 31m

1 stop

IAD4:46 pmWashington, D.C. Dulles Intl

$277

Delta

Feb 3

IAD12:40 pmWashington, D.C. Dulles Intl

9h 11m

1 stop

SAN6:51 pmSan Diego

Feb 9

SAN7:05 amSan Diego

9h 04m

1 stop

IAD7:09 pmWashington, D.C. Dulles Intl

$287

momondo Fare Finder

Use the filters below to find and compare flights from District of Columbia to San Diego that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.San Diego

DCA - SAN

DCASAN

Washington, D.C. Reagan-National

Mon 3/9

8:00 am-12:09 am

1 stop19h 09m

San Diego

Sat 3/14

6:25 am-9:59 pm

1 stop12h 34m

$240

Washington, D.C.San Diego

DCA - SAN

DCASAN

Washington, D.C. Reagan-National

Wed 3/11

6:00 pm-12:09 am

1 stop9h 09m

San Diego

Mon 3/16

9:00 am-9:59 pm

1 stop9h 59m

$241

Washington, D.C.San Diego

IAD - SAN

IADSAN

Washington, D.C. Dulles Intl

Tue 3/10

5:50 am-11:35 am

2 stops8h 45m

San Diego

Wed 3/18

7:35 am-5:20 pm

1 stop6h 45m

$242

Washington, D.C.San Diego

DCA - SAN

DCASAN

Washington, D.C. Reagan-National

Thu 1/22

2:00 pm-12:08 am

1 stop13h 08m

San Diego

Mon 1/26

11:49 am-9:59 pm

1 stop7h 10m

$242

Washington, D.C.San Diego

DCA - SAN

DCASAN

Washington, D.C. Reagan-National

Thu 1/22

2:00 pm-12:08 am

1 stop13h 08m

San Diego

Mon 1/26

6:30 am-4:59 pm

1 stop7h 29m

$243

Washington, D.C.San Diego

IAD - SAN

IADSAN

Washington, D.C. Dulles Intl

Thu 2/19

6:03 am-11:14 am

1 stop8h 11m

San Diego

Tue 2/24

1:05 pm-8:56 pm

Nonstop4h 51m

$246

Washington, D.C.San Diego

IAD - SAN

IADSAN

Washington, D.C. Dulles Intl

Tue 2/3

6:04 pm-10:07 am

1 stop19h 03m

San Diego

Tue 2/10

9:10 am-5:04 pm

Nonstop4h 54m

$247

Washington, D.C.San Diego

DCA - SAN

DCASAN

Washington, D.C. Reagan-National

Mon 2/2

3:24 pm-10:26 pm

1 stop10h 02m

San Diego

Sat 2/21

10:35 pm-8:59 am

1 stop7h 24m

$247

Washington, D.C.San Diego

IAD - SAN

IADSAN

Washington, D.C. Dulles Intl

Wed 2/11

5:50 pm-8:47 pm

Nonstop5h 57m

San Diego

Sat 2/14

1:05 pm-8:56 pm

Nonstop4h 51m

$251

Washington, D.C.San Diego

IAD - SAN

IADSAN

Washington, D.C. Dulles Intl

Tue 2/17

5:30 am-1:35 pm

2 stops11h 05m

San Diego

Mon 3/16

2:55 pm-12:15 am

1 stop6h 20m

$252

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from District of Columbia 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

Prices

Airlines

Other information

What is the cheapest month to fly to San Diego?

If you are unable to visit San Diego during the month of January, then departing from District of Columbia during the month August is also very affordable. Most momondo users find prices during this month for around $347.

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

The cheapest day to depart from District of Columbia 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 $380. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $463. 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 afternoon when flights can be purchased for as low as $392. Flights at noon are often more expensive with an average ticket price of $498.

What is the cheapest District of Columbia to San Diego flight route?

Fly from Baltimore/Washington to San Diego for the best District of Columbia - 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 District of Columbia when booking weeks ahead of your departure date. In general, you can expect to find flights to San Diego for around $398 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Diego from District of Columbia for as low as $335 on momondo.

What cabin class options are available on District of Columbia to San Diego flights?

There are 4 cabin classes available to choose from on District of Columbia 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 District of Columbia to San Diego flights?

You could potentially save up to 23% on your flight if you consider stops on a District of Columbia to San Diego flight.

Cheap District of Columbia to San Diego flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from District of Columbia 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 District of Columbia in the past 72 hours is $208. The best round-trip flight deal from District of Columbia to San Diego found on momondo in the last 72 hours is $270.

The fastest flight from District of Columbia to San Diego takes 5h 38m

Direct flights go from District of Columbia to San Diego every day.

There is 1 airport in San Diego. From District of Columbia there are direct flights to San Diego (SAN).

Search flight deals

When did momondo last update prices for flights from District of Columbia to San Diego Airport?
Prices for flights from District of Columbia to San Diego Airport are refreshed on a daily basis.
How many operators does momondo search for flights from District of Columbia to San Diego Airport?
The number of operators available for flights from District of Columbia to San Diego Airport is 7 as of January 2026.
How old do you have to be to fly from District of Columbia 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 District of Columbia to San Diego Airport.
What documentation or ID do you need to fly to San Diego Airport?
The required travel and health documents for your San Diego Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Diego Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from District of Columbia to San Diego?
momondo data reveals that the most frequently booked plane model on the route from District of Columbia to San Diego is Boeing 737-900, representing 22.65% of all bookings. The subsequent popular models are Boeing 737 MAX 9 at 20.91%, Boeing 737-800 Passenger/BBJ2 (winglets) at 20.10%, and Boeing 737 MAX 8 at 14.55%.

Best airlines flying from District of Columbia to San Diego

Compare and see reviews for airlines that fly from District of Columbia to San Diego with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $130	Free Cancellation	Rating 5.7 3,056 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $131	Free Cancellation	Rating 6.3 8,306 reviews	Search Spirit Airlines flights
Hawaiian Airlines	PriceFrom $158	Free Cancellation	Rating 7.8 2,827 reviews	Search Hawaiian Airlines flights
Alaska Airlines	PriceFrom $211	Free Cancellation	Rating 7.9 11,700 reviews	Search Alaska Airlines flights
Delta	PriceFrom $216	Free Cancellation	Rating 7.9 8,039 reviews	Search Delta flights
American Airlines	PriceFrom $216	Free Cancellation	Rating 7.2 11,117 reviews	Search American Airlines flights
Southwest	PriceFrom $222	Free Cancellation	Rating 8.0 4,257 reviews	Search Southwest flights
United Airlines	PriceFrom $253	Free Cancellation	Rating 7.4 9,152 reviews	Search United Airlines flights

Coronado

Chula Vista

El Cajon

Julian

Poway

National City

Imperial Beach

Borrego Springs

San Ysidro

La Mesa

Alpine

Lemon Grove

Santee

Why use momondo?

Why should I use momondo to find a flight deal from District of Columbia to San Diego?

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

Can I find flights from District of Columbia to San Diego with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for District of Columbia to San Diego flights to just show those with flexible booking policies.

How can momondo help me find flights from District of Columbia to San Diego?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to San Diego from District of Columbia.

I’m not ready to book a flight from District of Columbia to San Diego right now. Can momondo alert me if prices change?

Yes. momondo can track prices for District of Columbia to San Diego flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Cheap flights from District of Columbia to San Diego from $139

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from District of Columbia to San Diego departing on 3/18. 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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Big names and deals

Filter for what you want

Filter for what you want

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Trusted and free

Price Alerts

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Find the cheapest flights from District of Columbia to San Diego

Cheap round-trip flights

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Alaska Airlines flights from District of Columbia to San Diego

Our best Alaska Airlines deals on District of Columbia to San Diego flight tickets

Delta flights from District of Columbia to San Diego

Our best Delta deals on District of Columbia to San Diego flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from District of Columbia to San Diego that are best for you.

See travel insights to San Diego from

How to get the cheapest flight ticket from District of Columbia to San Diego

What is the cheapest month to fly to San Diego?

If you are unable to visit San Diego during the month of January, then departing from District of Columbia during the month August is also very affordable. Most momondo users find prices during this month for around $347.

What is the cheapest day to depart on your flight 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 afternoon when flights can be purchased for as low as $392. Flights at noon are often more expensive with an average ticket price of $498.

What is the cheapest District of Columbia to San Diego flight route?

Fly from Baltimore/Washington to San Diego for the best District of Columbia - San Diego flight prices

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

What cabin class options are available on District of Columbia to San Diego flights?

There are 4 cabin classes available to choose from on District of Columbia 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 District of Columbia to San Diego flights?

You could potentially save up to 23% on your flight if you consider stops on a District of Columbia to San Diego flight.

What is the cheapest airline that flies from District of Columbia to San Diego?

Alaska Airlines, Southwest, and Delta are the most popular carriers operating from District of Columbia to San Diego

What airlines fly to San Diego?

How many flights depart from District of Columbia to San Diego on average per day?

As of January 2026, 9 flights take off from District of Columbia and land in San Diego each day. The most common flight departure time for this route is 5:00PM, with 55% of daily flights taking off in the afternoon.

How many flights depart from District of Columbia to San Diego on average per week?

65 flights are operational weekly from District of Columbia to San Diego as of January 2026. The most popular departure day for this route is Mon, with 20% of flights per week taking off on this day.

Cheap District of Columbia to San Diego flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from District of Columbia to San Diego

Best Price Found

Fastest flight time

Direct flights

Airports in San Diego

When did momondo last update prices for flights from District of Columbia to San Diego Airport?

How many operators does momondo search for flights from District of Columbia to San Diego Airport?

How old do you have to be to fly from District of Columbia to San Diego Airport?

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

What is the most popular plane model from District of Columbia to San Diego?

Best airlines flying from District of Columbia to San Diego

Compare and see reviews for airlines that fly from District of Columbia to San Diego with momondo

Traveling to a place near San Diego?

Why use momondo?

Why should I use momondo to find a flight deal from District of Columbia to San Diego?

Can I find flights from District of Columbia to San Diego with flexible booking policies on momondo?

How can momondo help me find flights from District of Columbia to San Diego?

I’m not ready to book a flight from District of Columbia to San Diego right now. Can momondo alert me if prices 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing California