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Find cheap one-way flights from Washington D.C. to San Diego starting at US$47.

We've found these cheap flights for you. You can book one-way or round-trip flight tickets.

  • One way
  • Round-trip

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

When is the cheapest time to book flights from Washington D.C. to San Diego?

We monitor flight fares to help you find the best deals effortlessly

Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.
Cheapest airlines flights from Washington D.C. to San Diego

Compare prices, find the option that best suits your travel needs, and enjoy a comfortable journey with a trusted airline.

Frontier Airlines
From US$47
American Airlines
From US$113
Alaska Airlines
From US$115
Sun Country Airlines
From US$122
Delta Air Lines
From US$122
Jetblue Airways
From US$127
Southwest Airlines
From US$128
United Airlines
From US$135
ANA airlines

Find more flights and airlines

Find cheap flights from Washington D.C. to San Diego by different airports

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Washington D.C. to San Diego.

  • Cheapest
    Frontier Airlines
    DCA
    07:00
    8h 59m
    1 transfer
    SAN
    12:59
    Ronald Reagan Washington National Airport - San Diego International Airport
    Mon, May 6Frontier Airlines
    US$47
  • American Airlines
    IAD
    05:04
    8h 14m
    1 transfer
    SAN
    10:18
    Dulles International Airport - San Diego International Airport
    Wed, Apr 24American Airlines
    US$113
  • American Airlines
    IAD
    05:04
    8h 14m
    1 transfer
    SAN
    10:18
    Dulles International Airport - San Diego International Airport
    Wed, Apr 24American Airlines
    US$113
    Find More Flights

Frequently Asked Questions

  • When are flight tickets from Washington D.C. (WAS) to San Diego (SAN) the cheapest?

    Airlines adjust prices for flights from Washington D.C. to San Diego based on the departure date and time of your selection. By analyzing data from all airlines, we've discovered that on Trip.com, you can find the lowest flight prices on Tuesdays, Wednesdays, and Saturdays.
  • How much do flights from Washington D.C. (WAS) to San Diego (SAN) cost?

    According to Trip.com's data, the lowest price is around $376.
  • How long does it take to fly from Washington D.C. (WAS) to San Diego (SAN) and what is the distance?

    It takes around 6 hours 11 minutes to fly from Washington D.C. (WAS) to San Diego (SAN).
  • What is the transportation method from the main airport to downtown in San Diego?

    • The distance from San Diego International Airport to downtown is about 3km. It takes about 20 minutes by taxi.
  • What are the most popular airlines that fly from Washington D.C. (WAS) to San Diego (SAN)?

    Airlines with flights from Washington D.C. (WAS) to San Diego (SAN): United Airlines, Southwest Airlines, American Airlines, Brussels Airlines, Ethiopian Airlines, Austrian Airlines and Alaska Airlines.

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
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
2
Compare Flight Prices
Compare prices on travel agency and airline websites.
3
Look Out for Deals
Check airline and travel agency websites for latest flight deals
4
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
5
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
6
Use the Trip.com App
Save up to £10 per person when booking your flights on Trip.com

Washington D.C. to San Diego Flight Information

Cheapest nonstop flight price

$46

Cheapest round-trip ticket price

$159

Off-season for travel

May

Peak season for travel

July

Flight distance

3,654.5km

Average flight time

6 hours 11 minutes

Popular airline

Frontier Airlines