Find Cheap Flights from Washington, D.C. to San Diego (WAS - SAN)

Flights overview

Useful information for finding cheap flights from Washington, D.C. to San Diego and booking your next trip

Cheapest round-trip flights	$230	Frontier 1 stop 9 hr Thu, Jul 16 — Wed, Jul 22	The cheapest round-trip flight from Washington, D.C. to San Diego is currently $230
Cheapest one-way flight	$105	Frontier 1 stop 8 hr Wed, Jun 3	The cheapest one-way flight from Washington, D.C. to San Diego is currently $105
Cheapest nonstop flights	$377	Southwest Nonstop 6 hr Thu, Jul 2 — Wed, Jul 8	The cheapest nonstop round-trip flight from Washington, D.C. to San Diego is currently $377
Last-minute weekend getaway	$406	Frontier 1 stop 22 hr Thu, May 7 — Sun, May 10	The cheapest last-minute weekend getaway from Washington, D.C. to San Diego is currently $406
Cheapest business class flights	$498	Frontier 1 stop 13 hr Thu, Jul 30 — Wed, Aug 5	The cheapest business class round-trip flight from Washington, D.C. to San Diego is currently $498

Fastest flight	5 hr 15 min	The fastest nonstop flight from Washington, D.C. to San Diego takes 5 hr 15 min
Nonstop flights	Every day	There are direct flights on this route every day.

When is the cheapest time to fly?

The cheapest month to fly from Washington, D.C. to San Diego is typically September. The most expensive month to fly is typically March.

September Cheapest	Typical prices: $165–245
March Most expensive	Typical prices: $235–445

Popular airlines from Washington, D.C. to San Diego

Southwest

Nonstop

from $317

Typical price: $270–540

24 weekly nonstop flights

BWI - SAN Every day

1973 weekly connecting flights

BWI, DCA, IAD - SAN Every day
United

Nonstop

from $317

Typical price: $255–510

20 weekly nonstop flights

IAD - SAN Every day

1145 weekly connecting flights

BWI, DCA, IAD - SAN Every day
Delta

from $317

Typical price: $285–620

906 weekly connecting flights

BWI, DCA, IAD - SAN Every day
American

from $327

Typical price: $275–540

807 weekly connecting flights

BWI, DCA, IAD - SAN Every day
Alaska

Nonstop

from $377

Typical price: $270–640

14 weekly nonstop flights

DCA, IAD - SAN Every day

103 weekly connecting flights

BWI, DCA, IAD - SAN Every day
Frontier

from $230

Typical price: $205–485

67 weekly connecting flights

BWI, DCA, IAD - SAN Every day

Popular airports near Washington, D.C.

Ronald Reagan Washington National Airport (DCA)

Washington United States 19 min 4 mi
Dulles International Airport (IAD)

Washington United States 54 min 22 mi
Baltimore/Washington International Thurgood Marshall Airport (BWI) (BWI)

Baltimore United States 47 min 27 mi
Philadelphia International Airport (PHL)

Philadelphia United States 2 hr 18 min 116 mi

Popular airports near San Diego

San Diego International Airport (SAN)

San Diego United States 10 min 2 mi
Tijuana International Airport (TIJ)

Tijuana Mexico 37 min 16 mi
Los Angeles International Airport (LAX)

Los Angeles United States 2 hr 2 min 111 mi
John Wayne Airport (SNA)

Santa Ana United States 1 hr 21 min 78 mi

Frequently asked questions about flying from Washington, D.C. to San Diego

The cheapest flights from Washington, D.C. to San Diego are usually in September. Typical ticket prices in September range from $165 to $245.

The cheapest round-trip flight from Washington, D.C. to San Diego recently found on Google Flights was with Frontier from $230. The cheapest one-way flight was with Frontier from $105.

Some of the cheapest round-trip deals we found with different airlines:

The cheapest Southwest flight from Washington, D.C. to San Diego is $317, flying from May 30 to Jun 6.
The cheapest United flight from Washington, D.C. to San Diego is $317, flying from May 30 to Jun 6.
The cheapest Delta flight from Washington, D.C. to San Diego is $317, flying from May 30 to Jun 6.
The cheapest American flight from Washington, D.C. to San Diego is $327, flying from May 28 to Jun 3.
The cheapest Alaska flight from Washington, D.C. to San Diego is $377, flying from Jul 2 to Jul 8.
The cheapest Frontier flight from Washington, D.C. to San Diego is $230, flying from Jul 16 to Jul 22.

The cheapest round-trip flight from Washington, D.C. to San Diego starts at $230 from Thu, Jul 16 to Wed, Jul 22. The cheapest one-way flight starts at $105 and departs on Wed, Jun 3.

5 hr 15 min is the shortest flight time from Washington, D.C. to San Diego.

Jun–Aug is when most people visit San Diego, where the weather's temperate year-round. Beaches are less crowded Dec–Feb, which bring cooler temperatures but brighter sun. Whale-watching season is from mid-Dec–mid-Mar. Major annual events include Comic-Con International (Jul), a massive comic book convention with workshops and film screenings. Fleet Week (autumn) is a large military appreciation event featuring Navy ship tours, an air show and more.

It's easy to use Google Flights to find the cheapest days to fly from Washington, D.C. to San Diego.
Just click the Departure label near the top of the page to open the calendar. Choose a start date and a return date to see how the round-trip fare changes on those specific days.
Adjust the trip type to see one-way fares. The cheapest available flights are highlighted and easy to spot. Once you settle on dates, click the Search button to see flight options and book the deal.

You can also turn on price tracking to get alerts if the price changes for a route or flight.

What counts as the best airline for your flights from Washington, D.C. to San Diego really depends on your individual needs. You may have a favorite carrier or a loyalty program you like, but price, convenience, and airports served also come into play. Flexibility and booking terms – Can you change flights if you want to stay longer or get a refund if you have to postpone your trip? – are also factors that help determine which airline is best to fly from Washington, D.C. to San Diego.

In terms of nonstop flights, Southwest is the most popular. Southwest offers 24 nonstop flights and 1,973 connecting flights per week. Southwest flies from Baltimore/Washington International Thurgood Marshall Airport (BWI) (BWI) , Ronald Reagan Washington National Airport (DCA) , Dulles International Airport (IAD) to San Diego International Airport (SAN) .

Other popular airlines flying from Washington, D.C. to San Diego are:

United offers 20 nonstop flights and 1,145 connecting flights per week. United flies from Baltimore/Washington International Thurgood Marshall Airport (BWI) (BWI) , Ronald Reagan Washington National Airport (DCA) , Dulles International Airport (IAD) to San Diego International Airport (SAN) .
Delta offers 906 connecting flights per week. Delta flies from Baltimore/Washington International Thurgood Marshall Airport (BWI) (BWI) , Ronald Reagan Washington National Airport (DCA) , Dulles International Airport (IAD) to San Diego International Airport (SAN) .
American offers 807 connecting flights per week. American flies from Baltimore/Washington International Thurgood Marshall Airport (BWI) (BWI) , Ronald Reagan Washington National Airport (DCA) , Dulles International Airport (IAD) to San Diego International Airport (SAN) .
Alaska offers 14 nonstop flights and 103 connecting flights per week. Alaska flies from Baltimore/Washington International Thurgood Marshall Airport (BWI) (BWI) , Ronald Reagan Washington National Airport (DCA) , Dulles International Airport (IAD) to San Diego International Airport (SAN) .
Frontier offers 67 connecting flights per week. Frontier flies from Baltimore/Washington International Thurgood Marshall Airport (BWI) (BWI) , Ronald Reagan Washington National Airport (DCA) , Dulles International Airport (IAD) to San Diego International Airport (SAN) .

The number of connecting flights refers to distinct flights with at least one stop between Washington, D.C. and San Diego.

The cheapest round-trip flight from Washington, D.C. to San Diego recently found on Google Flights was with Frontier from $230. The cheapest one-way flight was with Frontier from $105.

Some of the cheapest round-trip deals we found with different airlines:

The cheapest Southwest flight from Washington, D.C. to San Diego is $317, flying from May 30 to Jun 6.
The cheapest United flight from Washington, D.C. to San Diego is $317, flying from May 30 to Jun 6.
The cheapest Delta flight from Washington, D.C. to San Diego is $317, flying from May 30 to Jun 6.
The cheapest American flight from Washington, D.C. to San Diego is $327, flying from May 28 to Jun 3.
The cheapest Alaska flight from Washington, D.C. to San Diego is $377, flying from Jul 2 to Jul 8.
The cheapest Frontier flight from Washington, D.C. to San Diego is $230, flying from Jul 16 to Jul 22.

Southwest, Alaska and United fly direct from Washington, D.C. to San Diego.

There are 24 Southwest direct flights from Washington, D.C. to San Diego per week. Flights are available every day.
There are 20 United direct flights from Washington, D.C. to San Diego per week. Flights are available every day.
There are 14 Alaska direct flights from Washington, D.C. to San Diego per week. Flights are available every day.

Use the Stops filter while searching for flights, to see only nonstop options in your results.

The cheapest last-minute deal between Washington, D.C. and San Diego at price $406 is offered by Frontier from Thu, May 7 to Sun, May 10.

Southwest, Alaska and United fly direct from Washington, D.C. to San Diego.

There are 24 Southwest direct flights from Washington, D.C. to San Diego per week. Flights are available every day.
There are 20 United direct flights from Washington, D.C. to San Diego per week. Flights are available every day.
There are 14 Alaska direct flights from Washington, D.C. to San Diego per week. Flights are available every day.

Use the Stops filter while searching for flights, to see only nonstop options in your results.

There are direct flights from Washington, D.C. to San Diego on a daily basis.

The cheapest direct (nonstop) round-trip flights between Washington, D.C. and San Diego start at $377 from Thu, Jul 2 to Wed, Jul 8 with Southwest.

It's easy to find nonstop flights with Google Flights! Once you've searched for flights from Washington, D.C. to San Diego, just select the nonstop flights only option in the 'Stops’ filter in the search form and view all available direct flights and their prices.

The cheapest business class round-trip flights between Washington, D.C. and San Diego start at $498 from Thu, Jul 30 to Wed, Aug 5 with Frontier.

The cheapest economy class round-trip flights between Washington, D.C. and San Diego start at $230 from Thu, Jul 16 to Wed, Jul 22.

To book business class trips from Washington, D.C. to San Diego, look for the default Economy selection at the top, and change it to your desired cabin class such as Premium Economy, Business Class, or First Class. You can then select your departure and arrival dates, consider available options, and book your business travel.

You can also adjust the trip type to view one-way fares.

The best last-minute getaway deal for the next weekend between Washington, D.C. and San Diego starts at $406 from Thu, May 7 to Sun, May 10 with Frontier.

The cheapest last-minute deal between Washington, D.C. and San Diego at price $406 is offered by Frontier from Thu, May 7 to Sun, May 10.

To find last-minute flight deals from Washington, D.C. to San Diego, start by entering the city names, select the desired departure and return dates, and hit the Search button to view flight options.

You can check for last-minute flights for the same day or adjust the trip type to see one-way fares.