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Latest Flight Deals from St. Louis to Seattle
Book one-way or return flights from St. Louis to Seattle from as little as NZD 108. Choose from the popular airlines below and book your flight today!
- One way
- Round-trip
- STL19:5122h 40m1 stopSEA16:31Wed, May 1|St. Louis - Seattle|Frontier AirlinesNZD 108NZD 21650% OFF50% OFFNZD 216NZD 108
- STL21:5313h 51m1 stopSEA09:44Mon, May 6|St. Louis - Seattle|Frontier AirlinesNZD 114NZD 21647% OFF47% OFFNZD 216NZD 114
- STL22:1713h 3m1 stopSEA09:20Fri, May 3|St. Louis - Seattle|Frontier AirlinesNZD 123NZD 21643% OFF43% OFFNZD 216NZD 123
- STL22:1713h 3m1 stopSEA09:20Fri, May 10|St. Louis - Seattle|Frontier AirlinesNZD 126NZD 126
- STL21:5313h 51m1 stopSEA09:44Mon, May 13|St. Louis - Seattle|Frontier AirlinesNZD 141NZD 141
- STL12:3921h 56m1 stopSEA08:35Sat, May 4|St. Louis - Seattle|Frontier AirlinesNZD 142NZD 142
- STL22:5922h 31m1 stopSEA19:30Thu, May 9|St. Louis - Seattle|Frontier AirlinesNZD 143NZD 143
- STL22:5922h 31m1 stopSEA19:30Thu, May 2|St. Louis - Seattle|Frontier AirlinesNZD 143NZD 143
- STL16:506h 59m1 stopSEA21:49Tue, May 7|St. Louis - Seattle|Frontier AirlinesNZD 143NZD 143
- STL05:048h 4m1 stopSEA11:08Wed, May 8|St. Louis - Seattle|American AirlinesNZD 144NZD 144
- STL13:003h 5mDirectSEA14:00Sun, May 5|St. Louis - Seattle|Frontier AirlinesFind More FlightsFind More Flights
Crossed out prices are calculated based on the average price of the corresponding route on Trip.com.
Searching for the best last minute flight from St. Louis to Seattle? Find one-way or return flights that are affordable and fit your itinerary.
Trip.com monitors the ticket fares of flights from St. Louis to Seattle. Stay updated on price trends and snag the best deals for your upcoming trip.
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
View airlines operating flights 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.
American Airlines
From NZD 144
Spirit Airlines
From NZD 156
Alaska Airlines
From NZD 158
Delta Air Lines
From NZD 171
Frontier Airlines
From NZD 177
Sun Country Airlines
From NZD 233
United Airlines
From NZD 239
Southern Airways Express
From NZD 296
Southwest Airlines
From NZD 310
ANA airlines
Find more flights and airlines
Alternative Routes from St. Louis to Seattle
Discover different routes, airlines, and transfers and find the best alternative flights for your journey from St. Louis to Seattle.
- CheapestSTL22:4410h 20m1 transferSEA07:04St. Louis Lambert International Airport - Seattle-Tacoma International AirportTue, May 21Frontier AirlinesNZD 177
- STL22:4410h 20m1 transferSEA07:04St. Louis Lambert International Airport - Seattle-Tacoma International AirportTue, May 21Frontier AirlinesNZD 177Find More Flights
How do I find the cheapest flights?
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.
Book Early
Once prices are gone, they're gone. Lock in deals while you can!
Compare Flight Prices
Compare prices on travel agency and airline websites.
Look Out for Deals
Check airline and travel agency websites for latest flight deals
Check One-way Fares
Buying two cheap one-way flights can sometimes be a better deal than a round-trip.
Try Different Dates
Flying during the week, early in the morning, or late at night can help save money.
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Flight Information from St. Louis to Seattle
Cheapest nonstop flight price | NZD 108 |
---|---|
Cheapest round-trip ticket price | NZD 312 |
Off-season for travel | December |
Peak season for travel | October |
Flight distance | 2,765.15km |
Average flight time | 5 hours 12 minutes |
Popular airline | American Airlines |
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