Trip.com
>
Cheap Flights
>
United States
>
California
>
San Diego
Hotels in San Diego
>
Flights from Washington D.C. to San Diego

Airlines Flying from Washington D.C. to San Diego

Choose from 1 carriers that fly from Washington D.C. to San Diego, including Alaska Airlines, Enjoy the cheapest tickets on this route with Hawaiian Airlines.
Alaska Airlines logo Alaska Airlines

Flight deals from Washington D.C. to San Diego

Find direct flights from Washington D.C. to San Diego within the next three months. Book one-way flights from £89 or return tickets from £138.

Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.

Flight Information from Washington D.C. to San Diego

The distance between Washington D.C. and San Diego is about 3,654.5km. It takes around 6 hours 44 minutes on average to fly from Washington D.C. to San Diego. The most popular month to San Diego is March. The off-season for travel is April.

Cheapest one-way flight price £77
Cheapest return ticket price £121
Off-season travel month April
Peak season for travel March
Flight distance 3,654.5km
Average flight time 6 hours 44 minutes
Popular airline Alaska Airlines

Find the best time to fly from Washington D.C. to San Diego

The cheapest time for Washington D.C. to San Diego flights: Aug 17 to Aug 24 — one way flight prices from £77.

Cheapest flights
From price
Search
  • 3 10
  • 10 17
  • 17 24
  • 24 31

  • Sep

    31 7
  • 7 14
  • 14 21
  • 21 28

  • Oct

    28 5
  • 5 12
  • 12 19
  • 19 26
Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

FAQ

How to find a cheap flight from Washington D.C. to San Diego

Wait until the last minute and flight costs are often sky-high. Plan ahead, book the right way, and your savings can soar. We have loads of saving tips to help you find a cheap flight from Washington D.C. to San Diego. Book your flights at the right time and save more.
1
Be flexible with your travel dates to get the cheapest flight from Washington D.C. to San Diego.
Simply tap "Date" on the flight search bar to browse through the calendar and check out airfare from Washington D.C. to San Diego over the next 6 months in 2025. If you're planning to fly within the next three months, it looks like the most affordable option is on Wed, Sep 3, with one-way flights priced at just £89.
2
Compare cheap flight deals from Washington D.C. to San Diego across hundreds of airlines.
With our extensive search, you can compare prices from over 500 airlines to find the cheapest flight tickets from Washington D.C. to San Diego. The cheapest airline for this route is Hawaiian Airlines.
3
Set up a Price Alert
By setting up a Price Alert for your journey from Washington D.C. to San Diego, you can easily keep an eye on ticket prices without having to check every day.
4
Don't miss out on cheap flight deals and promo codes from Washington D.C. to San Diego.
You can always find the latest offers through Trip.com Deals and Promo Codes for cheap flights. By signing up for a free membership, you'll get access to even more deals for your flights.
5
Book early or wait until the last minute.
It's usually best to book early. Flight tickets are often cheapest when they're first released, typically about a year before the departure date. So, have a look online as soon as the flights you're interested in become available. If you miss the cheapest time, you might still find some good deals as the departure date gets closer.
6
Search for flights on the go.
For the best travel flight booking experience, download the Trip.com app. You can search for cheap flights from Washington D.C. to San Diego and snag some exclusive deals just for you.

More Travel Options