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St. Louis, MO to Seattle flights

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Why book with Opodo?
  • Cheap flights with over 660 airlines
  • Compare the best deals
  • Fly to Seattle for low prices
Flight Duration Flights between St. Louis, MO and Seattle take, on average, 4 h and 55 m minutes, but the time can vary according to other factors
Cheapest flight Cheapest price for a one-way flight between St. Louis, MO with Seattle found by our customers in the last 72 hours
Departing Airport The airport Lambert-St Louis Internatl is the departure airport operating flights between St. Louis, MO and Seattle
Arriving Airport Flights departing St. Louis, MO with Seattle as destination arrives at Seattle All Airports

Cheap last minute flights to Seattle

Latest deals and top flight routes from St. Louis, MO airports.

Departure Tue, 24 May Return Tue, 31 May
STL St. Louis, MO
SEA Seattle
return from £276
Departure Tue, 07 Jun Return Tue, 14 Jun
STL St. Louis, MO
SEA Seattle
return from £389
Flight route information
Find out further information on St. Louis, MO and Seattle to help you prepare for your trip.
St. Louis, MO airports
  • ( Spirit Of (SUS)
    How far from city centre: 25 miles
  • ( Bi State Park (CPS)
    How far from city centre: 4 miles
  • ( Lambert-St Louis Internatl (STL)
    How far from city centre: 12 miles
Seattle airports
  • ( Seattle All Airports (SEA)
    How far from city centre: 11 miles
  • ( Lake Union Spb (LKE)
    How far from city centre: 7 miles
  • ( Boeing Field International (BFI)
    How far from city centre: 5 miles
  • ( Snohomish County (PAE)
    How far from city centre: 22 miles
K Distance: 1721 miles

Search for flights from St. Louis, MO to Seattle

Find cheap flights from St. Louis, MO to Seattle with the Opodo search engine. Whether it’s on business, for a relaxing holiday or to visit loved ones, you will find all the best deals on flights from St. Louis, MO with Opodo, featuring cheap flights by all the top low cost and standard airlines. By simply entering your preferences in our speedy search engine, a large selection of options will be returned from which you just need to select the best deal that works for you. We’ll do the rest! Alternatively, if you are flexible on dates or an early bird, discover the cheapest day to fly from St. Louis, MO to Seattle to ensure you get the best price. Find exclusive discounts by downloading the Opodo App and subscribing to our newsletter to stay in touch with the best offers on flights, hotels and more. Finally, don’t forget to book a hotel or car hire to complete your journey, all of which you will find on Opodo, your one-stop travel shop. Then just sit back and relax and enjoy your holidays!

Frequent asked questions about flights from St. Louis, MO to Seattle

😷 Is it safe to travel from St. Louis, MO to Seattle during the Covid-19 situation?
At Opodo we want to make sure that your travel plans are not affected by any cancelation as well as any possible restrictions United States may apply when travelling from St. Louis, MO. Is your flight cancelled? We've got your back! With our flexible ticket guarantee you can decide if you want to book another flight - free of rebooking fee - or get a full refund!
🔍 How can I find cheap flights from St. Louis, MO to Seattle at Opodo?
The cheapest price for a flight from St. Louis, MO to Seattle is 276£. At Opodo we use different machine learned based methodologies to find our costumers the best option available, considering airline combinations, stopovers and direct flights as well as different criteria for inbound and outbound journeys.
📉 When is the best time to book a flight from St. Louis, MO to Seattle?
The most popular months to book a trip from St. Louis, MO to Seattle are September, November and April, based on the searches of our customers.
📅 When is the best time to travel from St. Louis, MO to Seattle?
The best time of the year to go to Seattle when flying from St. Louis, MO depends on several preference factors like climate, seasonality and, of course, price. When it comes to popularity, December is the top 1º month to fly to Seattle from St. Louis, MO in terms of searches from our customer, followed by October and June. If you prefer to avoid high peaks of turism, however, and escape a crowded period, April, May and July are the months with less volume of searchs for the route St. Louis, MO -  Seattle.
🕑 How long does the flight take to go from St. Louis, MO to Seattle?
The total flight time between St. Louis, MO and Seattle is of around 04:55 hours on average, considering an average distance of 2,817 km, for both direct and indirect flights for the route (which may have 1 or more stops in other cities in between).
🌡️ How is the weather in Seattle compared to St. Louis, MO?
While in St. Louis, MO the temperatures can reach an average of 34.91 ºC in summer, with precipitation levels up to 12.0 mm ,Seattle's temperatures can go up to 31.31 ºC during the hot season, with 9.0 mm average of rain rate . In winter, however, weather indicators show around -3.71 ºC in Seattle, compared to the -13.87 ºC average degrees reported in St. Louis, MO. During the winter period, St. Louis, MO can register 6.0 mm precipitation, while Seattle have an average of 12.0 mm rain level.
🛄 Which airports have flights between St. Louis, MO and Seattle?
The main airport route flying between St. Louis, MO and Seattle is: Lambert-St Louis Internatl (STL) to Seattle All Airports (SEA). This route is covered by the following airline(s):
  • Alaska Airlines.
  • Japan Airlines.
Which are the airlines with flights from St. Louis, MO to Seattle?
Airlines with direct flights departing from St. Louis, MO to Seattle are:
  • Alaska Airlines.
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