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Flights from St. Louis to Seattle
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Flights from St. Louis to Seattle Starting at Rs 25,463

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

  • One way
  • Round-trip
      • Cheapest nonstop
        STL14:49
        4h 41m
        Nonstop
        SEA17:30
        Wed, Jan 22|St. Louis - Seattle|Alaska Airlines
        Rs 25,463Rs 35,047
        27% OFF
        27% OFF
        Rs 35,047Rs 25,463

        Choose Alaska Airlines flights from St. Louis to Seattle. The one-way direct flight with Alaska Airlines departs from St.Louis Lambert International Airport on Wed, Jan 22, arriving at Seattle-Tacoma International Airport. One-way Prices start from Rs 25,463 including taxes and charges.

      • STL14:49
        4h 41m
        Nonstop
        SEA17:30
        Wed, Feb 12|St. Louis - Seattle|Alaska Airlines
        Rs 25,501Rs 35,047
        27% OFF
        27% OFF
        Rs 35,047Rs 25,501

        Choose Alaska Airlines flights from St. Louis to Seattle. The one-way direct flight with Alaska Airlines departs from St.Louis Lambert International Airport on Wed, Feb 12, arriving at Seattle-Tacoma International Airport. One-way Prices start from Rs 25,501 including taxes and charges.

      • STL18:46
        22h 49m
        1 stop
        SEA15:35
        Wed, Jan 29|St. Louis - Seattle|Frontier Airlines
        Rs 15,991Rs 35,047
        54% OFF
        54% OFF
        Rs 35,047Rs 15,991

        Choose Frontier Airlines flights from St. Louis to Seattle. The one-way connecting flight with Frontier Airlines departs from St.Louis Lambert International Airport on Wed, Jan 29, arriving at Seattle-Tacoma International Airport. One-way Prices start from Rs 15,991 including taxes and charges.

      • STL18:46
        18h 43m
        1 stop
        SEA11:29
        Sat, Dec 7|St. Louis - Seattle|Frontier Airlines
        Rs 16,106
        Rs 16,106

        Choose Frontier Airlines flights from St. Louis to Seattle. The one-way connecting flight with Frontier Airlines departs from St.Louis Lambert International Airport on Sat, Dec 7, arriving at Seattle-Tacoma International Airport. One-way Prices start from Rs 16,106 including taxes and charges.

      • STL19:09
        22h 36m
        1 stop
        SEA15:45
        Sat, Feb 1|St. Louis - Seattle|Frontier Airlines
        Rs 16,221
        Rs 16,221

        Choose Frontier Airlines flights from St. Louis to Seattle. The one-way connecting flight with Frontier Airlines departs from St.Louis Lambert International Airport on Sat, Feb 1, arriving at Seattle-Tacoma International Airport. One-way Prices start from Rs 16,221 including taxes and charges.

      • STL18:46
        18h 43m
        1 stop
        SEA11:29
        Wed, Dec 11|St. Louis - Seattle|Frontier Airlines
        Rs 16,298
        Rs 16,298

        Choose Frontier Airlines flights from St. Louis to Seattle. The one-way connecting flight with Frontier Airlines departs from St.Louis Lambert International Airport on Wed, Dec 11, arriving at Seattle-Tacoma International Airport. One-way Prices start from Rs 16,298 including taxes and charges.

      • STL18:46
        20h 24m
        1 stop
        SEA13:10
        Mon, Dec 16|St. Louis - Seattle|Frontier Airlines
        Rs 17,985
        Rs 17,985

        Choose Frontier Airlines flights from St. Louis to Seattle. The one-way connecting flight with Frontier Airlines departs from St.Louis Lambert International Airport on Mon, Dec 16, arriving at Seattle-Tacoma International Airport. One-way Prices start from Rs 17,985 including taxes and charges.

      • STL22:32
        12h 5m
        1 stop
        SEA08:37
        Tue, Dec 10|St. Louis - Seattle|Frontier Airlines
        Rs 19,711
        Rs 19,711

        Choose Frontier Airlines flights from St. Louis to Seattle. The one-way connecting flight with Frontier Airlines departs from St.Louis Lambert International Airport on Tue, Dec 10, arriving at Seattle-Tacoma International Airport. One-way Prices start from Rs 19,711 including taxes and charges.

      • STL20:34
        14h 23m
        1 stop
        SEA08:57
        Sun, Dec 8|St. Louis - Seattle|Frontier Airlines
        Rs 20,823
        Rs 20,823

        Choose Frontier Airlines flights from St. Louis to Seattle. The one-way connecting flight with Frontier Airlines departs from St.Louis Lambert International Airport on Sun, Dec 8, arriving at Seattle-Tacoma International Airport. One-way Prices start from Rs 20,823 including taxes and charges.

      • STL18:49
        20h 21m
        1 stop
        SEA13:10
        Wed, Dec 18|St. Louis - Seattle|Frontier Airlines
        Rs 21,321
        Rs 21,321

        Choose Frontier Airlines flights from St. Louis to Seattle. The one-way connecting flight with Frontier Airlines departs from St.Louis Lambert International Airport on Wed, Dec 18, arriving at Seattle-Tacoma International Airport. One-way Prices start from Rs 21,321 including taxes and charges.

      • STL13:00
        3h 5m
        Nonstop
        SEA14:00
        Sat, Nov 30|St. Louis - Seattle|Alaska Airlines
        Find More Flights
        Find More Flights

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

Find the best time to fly from St. Louis to Seattle

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Displayed prices are calculated based on the cheapest average weekly prices of the corresponding route on Trip.com.

Airlines Flying from St. Louis to Seattle

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

Frontier Airlines
From Rs 15,991
Delta Air Lines
From Rs 22,357
American Airlines
From Rs 24,504
Alaska Airlines
From Rs 25,463
United Airlines
From Rs 39,882
Southern Airways Express
From Rs 40,764
Southwest Airlines
From Rs 42,336

Find more flights and airlines

Alternative Routes from St. Louis to Seattle

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

  • Cheapest
    Frontier Airlines
    STL
    18:46
    22h 49m
    1 transfer
    SEA
    15:35
    St.Louis Lambert International Airport - Seattle-Tacoma International Airport
    Wed, Jan 29Frontier Airlines
    Rs 15,991
  • Frontier Airlines
    STL
    18:46
    22h 49m
    1 transfer
    SEA
    15:35
    St.Louis Lambert International Airport - Seattle-Tacoma International Airport
    Wed, Jan 29Frontier Airlines
    Rs 15,991
    Find More Flights

FAQ

  • When are flight tickets from St. Louis (STL) to Seattle (SEA) the cheapest?

    Airlines adjust prices for flights from St. Louis to Seattle 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 St. Louis (STL) to Seattle (SEA) cost?

    According to Trip.com's data, the lowest price is around Rs 74,931.

  • How long does it take to fly from St. Louis (STL) to Seattle (SEA) and what is the distance?

    It takes around 4 hours 42 minutes to fly from St. Louis (STL) to Seattle (SEA).

  • What is the transportation method from the main airport to downtown in Seattle?

    • The distance from Seattle-Tacoma International Airport to downtown is about 17 km. It takes about 30 minutes by taxi.
    • The distance from Lake Union Sea Plane Base to downtown is about 2 km. It takes about 20 minutes by taxi.

  • What are the most popular airlines that fly from St. Louis (STL) to Seattle (SEA)?

    Airlines with flights from St. Louis (STL) to Seattle (SEA): Qatar Airways, Alaska Airlines, Air Tahiti Nui, American Airlines, Japan Airlines, United Airlines and Hawaiian Airlines.

How to find a cheap flight from St. Louis to Seattle

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 St. Louis to Seattle. 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

Flight Information from St. Louis to Seattle

Cheapest nonstop flight priceRs 15,991
Cheapest round-trip ticket priceRs 44,100
Off-season for travelNovember
Peak season for travelAugust
Flight distance2,765.15 km
Average flight time4 hours 42 minutes
Popular airlineAmerican Airlines

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