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Flights from Seattle to San Antonio Starting at £48

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

  • One way
  • Round-trip

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

Find the best time to fly from Seattle to San Antonio

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.
Airlines Flying from Seattle to San Antonio

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

Frontier Airlines
From £48
Alaska Airlines
From £66
Spirit Airlines
From £68
American Airlines
From £70
Delta Air Lines
From £78
United Airlines
From £112
Sun Country Airlines
From £126
Southwest Airlines
From £130
ANA airlines

Find more flights and airlines

Alternative Routes from Seattle to San Antonio

Searching for potential routes that might be cheaper and faster? Check out these alternative flights from Seattle to San Antonio.

  • Cheapest
    Frontier Airlines
    SEA
    21:35
    11h 47m
    1 transfer
    SAT
    11:22
    Seattle-Tacoma International Airport - San Antonio International Airport
    Tue, Apr 23Frontier Airlines
    £48
  • Frontier Airlines
    SEA
    21:35
    11h 47m
    1 transfer
    SAT
    11:22
    Seattle-Tacoma International Airport - San Antonio International Airport
    Tue, Apr 23Frontier Airlines
    £48
    Find More Flights

How do I find the cheapest flights?

  • When are flight tickets from Seattle (SEA) to San Antonio (SAT) the cheapest?

    Airlines adjust prices for flights from Seattle to San Antonio based on the date and time of your booking. By analyzing data from all airlines, on Trip.com, you can find the cheapest flight prices on Tuesdays, Wednesdays, and Saturdays.
  • How much are flights from Seattle (SEA) to San Antonio (SAT) cost?

    According to Trip.com's data, the lowest price is around £360.
  • How long is the flight from Seattle (SEA) to San Antonio (SAT)?

    It takes about 4 hours to fly from Seattle (SEA) to San Antonio (SAT).
  • What is the transportation method from the main airport to downtown in San Antonio?

    • The distance from San Antonio International Airport to downtown is about 12km, by taxi about 30 minutes.
  • What are the most popular airlines that fly from Seattle (SEA) to San Antonio (SAT)?

    Airlines with flights from Seattle (SEA) to San Antonio (SAT): Condor Airlines, Qatar Airways, Alaska Airlines and Air Tahiti Nui.
  • What's the most popular airline for direct flights from Seattle (SEA) to San Antonio (SAT)?

    Alaska Airlines operates 2 direct flights from Seattle (SEA) to San Antonio (SAT).
  • How many airports in San Antonio (SAT)?

Flight Information from Seattle to San Antonio

Cheapest direct flight price

£48

Cheapest return ticket price

£131

Cheapest month

April

Peak season for travel

September