Cheap flights from St. Louis to Seattle

Bing travel utilizes over a billion airfares on a daily basis to bring you Price Predictors, and now we're using that data to uncover cheap flights from St. Louis to Seattle every day. Note that deals are compiled on yesterday's lowest airfares and can change often.

Featured flight deal from St. Louis to Seattle

• Saint Louis (STL) to Seattle (SEA)

  Save $117 off average low found today

  $271

  Fares rising

  View dates
  See more: Low fares from Saint Louis to Seattle

Lowest fares from St. Louis to Seattle

Use our flexible travel graph to find the lowest airfare from St. Louis to Seattle. Currently the cheapest flight you can find in the next 30 days from St. Louis to Seattle departs on 06/12/2012 and returns 06/14/2012 with a low fare of $326.

View complete flexible search for STL to SEA (modify trip length and dates)