Cheap Flights from St. Louis to North Seattle

Popular airlines from St. Louis to North Seattle

  • Aer Lingus

    Aer Lingus

  • Lufthansa

    Lufthansa

  • British Airways

    British Airways

  • Turkish Airlines

    Turkish Airlines

  • American Airlines

    American Airlines

  • Air Serbia

    Air Serbia

  • Swiss International Air Lines

    Swiss International Air Lines

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Find the cheapest month to fly from St. Louis (STL) to Seattle (SEA)

September is typically the cheapest month to fly

From €118 - €180 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.