Price observed over the last 3 months for a round trip.
Compare all flight tickets and find cheap flights from Washington to San Diego
The cheapest flights right now
Washington – San Diego
Outbound – Jun 20, 2026
1 stop
8h 53m DEN
Return – Jun 26, 2026
1 stop
7h 32m DEN
$609
yesterday
Washington – San Diego
Outbound – Jun 13, 2026
1 stop
6h 55m BER
Return – Jun 14, 2026
1 stop
6h 55m BCN
$687
3 days ago
Washington – San Diego
Outbound – Jun 13, 2026
1 stop
6h 55m BER
Return – Jun 14, 2026
1 stop
7h 30m BCN
$684
3 days ago
Washington – San Diego
Outbound – Jun 20, 2026
direct
5h 24m Return – Jun 27, 2026
1 stop
9h 4m SEA
$485
3 days ago
* Prices are in USD per passenger, including taxes, for a round trip. Prices are based on searches carried out within the last 72 hours. Please note that availability and ticket prices are subject to change and should not be considered as the final price quoted.
Cheapest flight tickets
$207
Average price of a round trip
$212
Average flight ticket price recorded over the last 3 months for a round trip.
Flight duration
16h41
A flight from Washington to San Diego takes on average 16h41.
Best time
September
According to user searches, the ideal month to go to San Diego is September.
The best flight deals for a week
Washington – San Diego
Outbound – Jun 20, 2026
1 stop
8h 53m DEN
Return – Jun 26, 2026
1 stop
7h 32m DEN
$609
yesterday
Washington – San Diego
Outbound – Jun 13, 2026
1 stop
6h 55m BER
Return – Jun 14, 2026
1 stop
6h 55m BCN
$687
3 days ago
Washington – San Diego
Outbound – Jun 13, 2026
1 stop
6h 55m BER
Return – Jun 14, 2026
1 stop
7h 30m BCN
$684
3 days ago
Washington – San Diego
Outbound – Jun 20, 2026
direct
5h 24m Return – Jun 27, 2026
1 stop
9h 4m SEA
$485
3 days ago
* Prices are in USD per passenger, including taxes, for a round trip. Prices are based on searches carried out within the last 72 hours. Please note that availability and ticket prices are subject to change and should not be considered as the final price quoted.
Tips for finding a cheap flight from Washington to San Diego
Check out our tips for booking your flight to San Diego (USA) from Washington (USA) at the cheapest possible price.
Usually, the cheapest month to pick up a ticket on this route is January, with an average flight ticket price of $142 (calculation over the last two years). The most touristic season corresponds to the months of October, March and January.
For the cheapest flights, it is advisable to buy your ticket at least 6 days before the departure date.
The airline offering the cheapest flight tickets is Frontier Airlines. A ticket from the airline Frontier Airlines to San Diego costs on average $212.
The airlines that offer the most flights are .
Price of flight tickets from Washington to San Diego
Here is some information and tips to know before booking your flight:
- Flight ticket prices range from $207 to $213
- The average price of a flight ticket is about $212
- Prices are lowest for stays in the month of January
- The month in which booking a ticket is cheaper is: May
info departure city :
Washington, USA
airports :
Ronald Reagan Washington National Airport (DCA)
Dulles International Airport (IAD)
College Park Airport (CGS)
local time :
Washington is a city in the country USA, the time zone is [[timezone]]. In Washington, it is currently {fromLocalTime}, the temperature is on average 20°C, with a minimum of 12°C and a maximum of 28°C.
The city of Washington (WAS) has 3 airport(s): Ronald Reagan Washington, Dulles and College Park
destination info :
San Diego, USA
airports :
Lindbergh Field (SAN)
Montgomery Field (MYF)
NAS (NZY)
local time :
San Diego is in the country USA, the time zone is [[timezone]]. In San Diego, it is currently {toLocalTime}, the temperature is on average 18°C, with a minimum of 15°C and a maximum of 22°C.
The city of San Diego has 3 airport(s): Lindbergh Field, Montgomery Field and NAS
Useful info about San Diego
What is the least touristic period to go to San Diego?
If you want to visit San Diego during the least touristic period, choose the month of September.
What is the most popular time to travel to San Diego?
In San Diego, the most popular month is October. It is during this period that the prices offered by airlines are also the highest.
When should I book my flight from Washington to San Diego?
According to our data, it is recommended to book your flight 6 days before your departure. If you book your flight ticket 1 weeks before your departure, you may find a price below average. You can also choose morning flights that are 100% cheaper than afternoon and evening flights. The cheapest day to book a flight from Washington to San Diego is Tuesday.
What are the arrival and destination airports when traveling between Washington and San Diego?
When you leave, you can leave from Ronald Reagan Washington or Dulles, and you will arrive at Lindbergh Field.
How to reach Washington airport from the city centre?
The airport Ronald Reagan Washington is located 4 km, Dulles is located 42 km or College Park is located 14 km from the city centre. You can access it by using public transportation, taking a taxi, or renting a car.
Are there other means of transportation to go from Washington to San Diego?
Airplane is the only means of transportation listed on Liligo for this journey.
Are there big differences in weather between Washington and San Diego?
In summer, the average temperature is 21°C in San Diego and 25°C in Washington. The average rainfall in summer is 4 mm in San Diego and 132 mm in Washington. In summer, it is warmer in Washington and it rains less in San Diego. In winter, it is colder in San Diego and it rains more in Washington.