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Flights St. Louis — Seattle

Saint Louis
STL
Seattle
SEA

Cheap flights St. Louis — Seattle

Below you can see the best deals on flights St. Louis — Seattle for upcoming dates. Direct and connecting flights from various airlines — compare prices and choose the right ticket.

The lowest price for the next 2 months is on 6 August, from AED 388.

Top 10 cheap flights St. Louis — Seattle

Direct flights St. Louis — Seattle

Direct flight options for St. Louis — Seattle with no stopovers on upcoming dates. A direct flight is faster and more convenient — especially when travelling with luggage or children.

The fastest direct flight is operated by Alaska Airlines — travel time is 4 h 28 min.

Top 10 direct flights St. Louis — Seattle

About the St. Louis — Seattle flight

On this page, you can find and purchase flights from St. Louis to Seattle. The distance between these cities is 2,775 km, and flight frequency reaches 30 flights per week, making it easy to find a convenient departure time.

Flights on this route are operated by carriers such as American Airlines and Alaska Airlines. Since ticket prices change constantly, we recommend using the price trend graph and checking in advance how to get to the airport of departure and how to get from the airport to your final destination.

Flight schedule St. Louis — Seattle

The table shows direct flights St. Louis → Seattle on the selected date. The flight takes approximately 3 h 58 min. Regular flights are operated by Alaska Airlines, Hawaiian Airlines, American Airlines and Qatar Airways. Departures from Lambert-St. Louis International Airport airports, arrivals at Seattle-Tacoma International Airport and Paine Field.

For each flight, the following details are shown: departure time (local), arrival city and airport, flight number and airline, terminal or gate, and status. Click on a flight to open its details and go to ticket search. To view flights on a different day, change the date above the table.

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Flight ticket prices by day: St. Louis — Seattle

Below is a calendar of the lowest flight ticket prices for St. Louis — Seattle by day. Pick a convenient date and instantly see the fare. The cheapest flights on this route start from AED 388 in ,, and the most expensive are around AED 774 in r. If your travel dates are flexible, the calendar will help you find the best price for your preferred period. To view round-trip fares, switch to the "Round trip" tab above the calendar, select your departure date — and the right-hand calendar will highlight the lowest prices for return flights on each day.

 
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Prices by month

St. Louis → Seattle, average one-way price

MonthAverage priceLevelMonthAverage priceLevelMonthAverage priceLevel
JanAED 606lowMayAED 866mediumSepAED 693low
FebAED 563lowJunAED 953highOctAED 650low
MarAED 650mediumJulAED 1,039highNovAED 866medium
AprAED 780mediumAugAED 910highDecAED 996high

Some values are estimated based on seasonality.

When to fly

The most comfortable weather in Seattle is typically in July and August, when temperatures reach 25°C. The rainiest and coolest period is winter, especially January, which sees up to 202.9 mm of precipitation and average temperatures around 4–8°C.

From a budget perspective, the best time to plan your flight is July, when the minimum price starts AED 407. Prices usually peak in December — tickets during this period can cost AED 774.

September is considered the optimal time for a trip: the weather remains pleasantly warm, while prices drop to AED 536. We recommend avoiding late autumn if you want to stay clear of the rainy season.

Temperature · Seattle

Dry and wet days · Seattle

Wind speed and direction · Seattle

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How to get the best deal on a St. Louis — Seattle ticket

  • Use the low price calendar on this page to compare fares for nearby dates, as the difference can reach several thousand rubles.
  • On this 2,775 km route, connecting flights are often cheaper than direct ones, with average savings AED 120.
  • Book your tickets 4–6 weeks before departure to access the most competitive fares from Alaska Airlines or American Airlines.
  • Pay close attention to carry-on baggage rules: some carriers on this route offer their cheapest fares without checked luggage.

Airlines

There are 5 airlines operating on the St. Louis — Seattle route, with Alaska Airlines and American Airlines being the primary carriers. Approximately 30 flights are operated weekly, including both direct flights and convenient connecting options. Detailed schedules by day of the week and baggage policies are available in the list below; click on an airline card to view specific route details.

  • Alaska AirlinesAS
    15x/week
    WebsiteFleet: 31545M pax/year
    • Direct flight STL → SEA15x/week
      Duration
      4h 29m
      Days
      MTWTFSS
    51.1%Open →
  • Hawaiian AirlinesHA
    10x/week
    WebsiteFleet: 7511M pax/year
    • Direct flight STL → SEA10x/week
    34.4%Open →
  • American AirlinesAA
    3x/week
    WebsiteFleet: 965211M pax/year
    • Direct flight STL → SEA3x/week
      Duration
      4h 29m
      Days
      MTWTFSS
    11.1%Open →
  • Qatar AirwaysQR
    1x/week
    WebsiteFleet: 26640M pax/year
    • Direct flight STL → SEA1x/week
    2.2%Open →
  • Japan AirlinesJL
    1x/week
    WebsiteFleet: 14540M pax/year
    • Direct flight STL → SEA1x/week
    1.1%Open →

Cities and airports on the St. Louis — Seattle route

Flights St. Louis — Seattle depart from Lambert-St. Louis International Airport and arrive at Seattle-Tacoma International Airport and Paine Field. Below are pages for the cities, countries, and airports on the route: airlines, schedules, and travel guides.

Departure

St. Louis

STL
United States
About the cityHow to get thereWeatherAll about the country United States
Arrival

Seattle

SEA
United States
About the cityHow to get thereWeatherAll about the country United States
Departure airports
Arrival airports

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Frequently asked questions about the St. Louis — Seattle flight

How long is the flight from St. Louis to Seattle?

With a distance of 2,775 km, a direct flight takes approximately 3 hours and 30 minutes. Total travel time may increase depending on the number of connections and layover times at transfer airports.

Which airlines fly this route?

The main carriers on this route are Alaska Airlines and American Airlines. Flights are also operated by Hawaiian Airlines and other international partners.

Are there direct flights from St. Louis to Seattle?

Yes, direct flights are regularly scheduled for this route. You can check current seat availability and schedules for specific dates using the search form above.

How much is the cheapest ticket?

Flight prices are dynamic and depend on the season and demand. Currently, the lowest fares start from 8,460 ₽; please check the price block on this page for the most up-to-date information.

Which airport does the flight arrive at?

All scheduled flights from St. Louis arrive at Seattle-Tacoma International Airport (SEA).

Where else you can fly from St. Louis

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ChicagoDallasNew York CityAtlantaMinneapolisTorontoDenverHoustonCharlotteWashington, D.C.DetroitBostonPortlandOrlandoPhoenixPhiladelphiaMiamiSalt Lake CityMontrealLos AngelesLas VegasCancunFort LauderdaleJonesboroSan FranciscoLondonTampaFrankfurt am MainPunta CanaQuincy

Where else you can fly from Seattle

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Los AngelesAnchorageVancouverSan FranciscoPhoenixSan DiegoSan JoseSpokanePortlandSanta AnaNew York CityBoiseDenverChicagoDallasSalt Lake CitySacramentoLas VegasRedmondBostonAtlantaHonoluluWashington, D.C.MinneapolisPascoAustinBurbankFairbanksEugeneJuneauNashvilleHoustonCalgaryBozemanDetroitPalm SpringsMissoulaMedfordRenoOrlando
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