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Cheap flights from Washington to San Diego

57 nonstop flights a week, 6 of them today. Operated by 3 airlines, about 5h 45m in the air, 2,270 mi (3,653 km). Tickets from $126, nonstop from $137.

Flights from Washington to San Diego

Pick a departure date to see flights and seller prices

We search agencies and airlines for your day: nonstop and connecting flights, baggage, departure and arrival times.

Prices by day: Washington to San Diego

Lowest one-way price in dollars from recent searches, cheap days in green. Press a day to see flights and exact prices.

Filters

Best fares from Washington to San Diego

Lowest one-way prices found by recent searches for the next 120 days; press a card to search that date

Cheapest one-way $126 12 January 2027, with a connection Cheapest nonstop $137 24 November 2026, Alaska Airlines Cheapest in the next 7 days $203 14 November, Sat Cheapest weekend departure $203 Sat, 14 November 2026
Cheapest day of the week Sunday $258 on average over the next 120 days
Cheapest month January 2027 tickets from $126

Washington to San Diego at a glance

flight time, from 5h 20m to 10h 35m
5h 45m
straight-line distance
2,270 mi (3,653 km)
flights a week
57
flights today
6
first and last departure
06:15 - 18:46
lowest price, with a connection, 12 January
$126
lowest nonstop price
$137
airlines
3

Washington to San Diego ticket prices by month

Lowest one-way fare found by recent searches

Cheapest month: January 2027, tickets from $126. Prices come from searches over the last few days; check the search for your exact date.

The most expensive month is December 2026: from $141. The average across months is $134.

Washington to San Diego flight schedule

57 flights a week, 6 today, 49 seasonal or one-off. Departure and arrival times are local.

FlightDepartsArrivesDurationDaysAircraft
WN 547
Southwest Airlines
06:15 Baltimore/Wash International Thurgood Marshall
09:00 San Diego International, terminal 1
5h 45m
Sat
Boeing 737
WN 1148
Southwest Airlines
06:20 Baltimore/Wash International Thurgood Marshall
09:05 San Diego International, terminal 1
5h 45m
Mon, Thu, Fri, Sun
Boeing 737
WN 1177
Southwest Airlines
07:05 Ronald Reagan National, terminal 1
12:40 San Diego International, terminal 1
8h 35m
Sat
WN 1316
Southwest Airlines
07:05 Baltimore/Wash International Thurgood Marshall
13:00 San Diego International, terminal 1
8h 55m
Mon, Thu, Fri, Sun
WN 1526
Southwest Airlines
08:00 Ronald Reagan National, terminal 1
11:55 San Diego International, terminal 1
6h 55m
Mon, Tue, Wed, Thu, Sat
WN 862
Southwest Airlines
08:10 Baltimore/Wash International Thurgood Marshall
10:50 San Diego International, terminal 1
5h 40m
Mon, Tue, Wed, Thu
Boeing 737
UA 1930
United Airlines
09:00 Washington Dulles International
11:46 San Diego International, terminal 2
5h 46m
Mon, Wed, Thu, Fri, Sat, Sun
Airbus A320
WN 1139
Southwest Airlines
10:40 Baltimore/Wash International Thurgood Marshall
13:20 San Diego International, terminal 1
5h 40m
Mon, Fri, Sun
Boeing 737
WN 162
Southwest Airlines
10:40 Ronald Reagan National, terminal 1
16:20 San Diego International, terminal 1
8h 40m
Sat
AS 15
Alaska Airlines
10:59 Ronald Reagan National, terminal 2
13:47 San Diego International, terminal 2
5h 48m
Daily
Boeing 737-800
WN 1139
Southwest Airlines
11:55 Baltimore/Wash International Thurgood Marshall
14:30 San Diego International, terminal 1
5h 35m
Mon, Tue, Wed, Thu
Boeing 737
UA 2163
United Airlines
12:45 Washington Dulles International
15:28 San Diego International, terminal 2
5h 43m
Daily
Boeing 737-900
UA 2054
United Airlines
17:50 Washington Dulles International
20:33 San Diego International, terminal 2
5h 43m
Daily
Boeing 737
AS 506
Alaska Airlines
18:46 Washington Dulles International
21:27 San Diego International, terminal 2
5h 41m
Tue, Fri, Sat, Sun
Boeing 737-900

Seasonal and one-off flights

Not operating in the next two weeks. The first of them is on 24 November.

FlightDepartsArrivesDurationDaysAircraft
WN 1148
Southwest Airlines
07:10 Baltimore/Wash International Thurgood Marshall
09:50 San Diego International, terminal 1
5h 40m
Seasonal
Boeing 737
WN 1149
Southwest Airlines
09:40 Baltimore/Wash International Thurgood Marshall
12:20 San Diego International, terminal 1
5h 40m
Seasonal
Boeing 737
WN 2460
Southwest Airlines
10:30 Baltimore/Wash International Thurgood Marshall
15:45 San Diego International, terminal 1
8h 15m
Seasonal
Boeing 737
WN 1148
Southwest Airlines
08:15 Baltimore/Wash International Thurgood Marshall
11:00 San Diego International, terminal 1
5h 45m
Seasonal
Boeing 737
WN 1221
Southwest Airlines
07:55 Baltimore/Wash International Thurgood Marshall
10:30 San Diego International, terminal 1
5h 35m
Seasonal
Boeing 737
WN 1149
Southwest Airlines
11:05 Baltimore/Wash International Thurgood Marshall
13:45 San Diego International, terminal 1
5h 40m
Seasonal
Boeing 737
UA 1930
United Airlines
08:37 Washington Dulles International
11:21 San Diego International, terminal 2
5h 44m
Seasonal
Boeing 737-800
UA 2163
United Airlines
12:35 Washington Dulles International
15:18 San Diego International, terminal 2
5h 43m
Seasonal
Boeing 737-900
WN 494
Southwest Airlines
10:50 Baltimore/Wash International Thurgood Marshall
13:30 San Diego International, terminal 1
5h 40m
Seasonal
Boeing 737
UA 2163
United Airlines
12:46 Washington Dulles International
15:29 San Diego International, terminal 2
5h 43m
Seasonal
Boeing 737-900
UA 1930
United Airlines
08:38 Washington Dulles International
11:29 San Diego International, terminal 2
5h 51m
Seasonal
Boeing 737
UA 2163
United Airlines
12:55 Washington Dulles International
15:42 San Diego International, terminal 2
5h 47m
Seasonal
Boeing 737-900
WN 4134
Southwest Airlines
08:20 Baltimore/Wash International Thurgood Marshall
11:10 San Diego International, terminal 1
5h 50m
Seasonal
Boeing 737
WN 996
Southwest Airlines
11:50 Baltimore/Wash International Thurgood Marshall
14:35 San Diego International, terminal 1
5h 45m
Seasonal
Boeing 737
WN 1376
Southwest Airlines
12:30 Ronald Reagan National, terminal 1
17:55 San Diego International, terminal 1
8h 25m
Seasonal
UA 1930
United Airlines
08:25 Washington Dulles International
11:16 San Diego International, terminal 2
5h 51m
Seasonal
Airbus A320
WN 996
Southwest Airlines
10:55 Baltimore/Wash International Thurgood Marshall
13:40 San Diego International, terminal 1
5h 45m
Seasonal
Boeing 737
WN 4134
Southwest Airlines
06:20 Baltimore/Wash International Thurgood Marshall
09:05 San Diego International, terminal 1
5h 45m
Seasonal
Boeing 737
WN 996
Southwest Airlines
11:00 Baltimore/Wash International Thurgood Marshall
13:45 San Diego International, terminal 1
5h 45m
Seasonal
Boeing 737
WN 2170
Southwest Airlines
12:25 Baltimore/Wash International Thurgood Marshall
18:25 San Diego International, terminal 1
9h
Seasonal
UA 1930
United Airlines
08:30 Washington Dulles International
11:08 San Diego International, terminal 2
5h 38m
Seasonal
Boeing 737-900
WN 1354
Southwest Airlines
10:40 Ronald Reagan National, terminal 1
17:45 San Diego International, terminal 1
10h 5m
Seasonal
WN 996
Southwest Airlines
11:05 Baltimore/Wash International Thurgood Marshall
13:50 San Diego International, terminal 1
5h 45m
Seasonal
Boeing 737
WN 1684
Southwest Airlines
11:40 Baltimore/Wash International Thurgood Marshall
14:25 San Diego International, terminal 1
5h 45m
Seasonal
Boeing 737
WN 206
Southwest Airlines
06:15 Baltimore/Wash International Thurgood Marshall
12:15 San Diego International, terminal 1
9h
Seasonal
WN 4487
Southwest Airlines
06:55 Baltimore/Wash International Thurgood Marshall
09:45 San Diego International, terminal 1
5h 50m
Seasonal
Boeing 737
WN 1072
Southwest Airlines
10:30 Baltimore/Wash International Thurgood Marshall
13:25 San Diego International, terminal 1
5h 55m
Seasonal
Boeing 737
WN 909
Southwest Airlines
10:40 Baltimore/Wash International Thurgood Marshall
17:25 San Diego International, terminal 1
9h 45m
Seasonal
WN 659
Southwest Airlines
14:20 Baltimore/Wash International Thurgood Marshall
17:10 San Diego International, terminal 1
5h 50m
Seasonal
Boeing 737
WN 482
Southwest Airlines
10:50 Baltimore/Wash International Thurgood Marshall
13:40 San Diego International, terminal 1
5h 50m
Seasonal
Boeing 737
WN 1432
Southwest Airlines
14:40 Baltimore/Wash International Thurgood Marshall
20:35 San Diego International, terminal 1
8h 55m
Seasonal
WN 175
Southwest Airlines
07:30 Baltimore/Wash International Thurgood Marshall
10:20 San Diego International, terminal 1
5h 50m
Seasonal
Boeing 737
WN 4568
Southwest Airlines
14:35 Baltimore/Wash International Thurgood Marshall
17:25 San Diego International, terminal 1
5h 50m
Seasonal
Boeing 737
WN 2047
Southwest Airlines
06:00 Ronald Reagan National, terminal 1
13:35 San Diego International, terminal 1
10h 35m
Seasonal
WN 1072
Southwest Airlines
09:55 Baltimore/Wash International Thurgood Marshall
12:45 San Diego International, terminal 1
5h 50m
Seasonal
Boeing 737
WN 1089
Southwest Airlines
08:20 Baltimore/Wash International Thurgood Marshall
11:05 San Diego International, terminal 1
5h 45m
Seasonal
Boeing 737
WN 1091
Southwest Airlines
13:40 Baltimore/Wash International Thurgood Marshall
16:20 San Diego International, terminal 1
5h 40m
Seasonal
Boeing 737
WN 1089
Southwest Airlines
08:40 Baltimore/Wash International Thurgood Marshall
11:25 San Diego International, terminal 1
5h 45m
Seasonal
Boeing 737
WN 1266
Southwest Airlines
10:40 Baltimore/Wash International Thurgood Marshall
13:15 San Diego International, terminal 1
5h 35m
Seasonal
Boeing 737
WN 1091
Southwest Airlines
14:30 Baltimore/Wash International Thurgood Marshall
17:10 San Diego International, terminal 1
5h 40m
Seasonal
Boeing 737
WN 1089
Southwest Airlines
08:15 Baltimore/Wash International Thurgood Marshall
11:00 San Diego International, terminal 1
5h 45m
Seasonal
Boeing 737
WN 1089
Southwest Airlines
06:25 Baltimore/Wash International Thurgood Marshall
09:05 San Diego International, terminal 1
5h 40m
Seasonal
Boeing 737
WN 1091
Southwest Airlines
13:10 Baltimore/Wash International Thurgood Marshall
15:50 San Diego International, terminal 1
5h 40m
Seasonal
Boeing 737
WN 900
Southwest Airlines
06:10 Baltimore/Wash International Thurgood Marshall
08:30 San Diego International, terminal 1
5h 20m
Seasonal
Boeing 737
WN 901
Southwest Airlines
10:35 Baltimore/Wash International Thurgood Marshall
12:55 San Diego International, terminal 1
5h 20m
Seasonal
Boeing 737
WN 902
Southwest Airlines
14:25 Baltimore/Wash International Thurgood Marshall
16:45 San Diego International, terminal 1
5h 20m
Seasonal
Boeing 737
WN 512
Southwest Airlines
08:00 Baltimore/Wash International Thurgood Marshall
10:25 San Diego International, terminal 1
5h 25m
Seasonal
Boeing 737
WN 203
Southwest Airlines
08:05 Baltimore/Wash International Thurgood Marshall
10:30 San Diego International, terminal 1
5h 25m
Seasonal
Boeing 737
WN 901
Southwest Airlines
13:25 Baltimore/Wash International Thurgood Marshall
15:45 San Diego International, terminal 1
5h 20m
Seasonal
Boeing 737

Days of the week are taken from the schedule for the next 14 days; schedules change by season. San Diego is 3 hours behind Washington. The search shows seat availability and the price for your date.

Airlines flying Washington to San Diego

Flights a week by schedule and the cheapest nonstop fare of each airline found by recent searches

Southwest Airlines26 a week United Airlines20 a week Alaska Airlines11 a week

Airports

Where flights from Washington to San Diego depart and land

Departure from Washington

Washington Dulles International IAD

24 flights a week, 22 mi (36 km) from the city centre

About the airport
Baltimore/Wash International Thurgood Marshall BWI

19 flights a week, 28 mi (45 km) from the city centre

About the airport
Ronald Reagan National closest to the centreDCA

14 flights a week, terminals 1, 2, 3 mi (5 km) from the city centre

About the airport

Arrival in San Diego

San Diego International SAN

57 flights a week, terminals 1, 2, 2 mi (4 km) from the city centre

About the airport

Frequently asked questions

How long is the flight from Washington to San Diego?
A nonstop flight takes 5 hours 45 minutes on average, from 5h 20m to 10h 35m depending on the flight.
How far is San Diego from Washington?
2,270 mi (3,653 km) in a straight line between the cities.
Which airlines fly nonstop from Washington to San Diego?
Southwest Airlines (26 a week), United Airlines (20 a week) and Alaska Airlines (11 a week).
How many flights a day are there from Washington to San Diego?
6 flights today and 57 a week, about 8.1 a day on average.
When are the first and last flights from Washington to San Diego?
The first departure is at 06:15 (WN547), the last at 18:46 (AS506). Local time.
What is the cheapest month to fly from Washington to San Diego?
January 2027: tickets from $126. The most expensive is December 2026, from $141.
What is the cheapest upcoming date to fly from Washington to San Diego?
12 January 2027 (Tuesday): from $126 one way, with a connection, by recent searches. The search shows the price for your dates.
Which airline is the cheapest from Washington to San Diego?
Alaska Airlines: nonstop tickets from $137 on 24 November by recent searches. Prices change daily, so compare the sellers in the search.
What is the time difference between Washington and San Diego?
San Diego is 3 hours behind Washington. Schedule times on this page are local to each airport.
Which Washington airport do flights to San Diego leave from?
Washington Dulles International (24 a week), Baltimore/Wash International Thurgood Marshall (19 a week) and Ronald Reagan National (14 a week).