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Did you mean flights from Seattle to St Louis?

Flights from St Louis to Seattle, United States Last modified: Sep 24, 2016 2:43 AM

TIPSave $61 by flying into Vancouver instead of Seattle from St Louis

St Louis to Seattle Last modified: Sep 24, 2016 2:43 AM

We've scanned 21,800,526,162 round trip itineraries and found the cheapest flights from St Louis to Seattle. Alaska & American frequently offer the best deals on St Louis to Seattle flights, or select your preferred carrier below to see the cheapest days to fly.

Alaska
STLSEA
Thu 10/20
1 stop
SEASTL
Mon 10/24
1 stop
$235
Select
American
STLSEA
Tue 10/11
1 stop
SEASTL
Tue 10/18
1 stop
$254
Select
American
STLSEA
Tue 10/11
1 stop
SEASTL
Wed 10/19
1 stop
$254
Select
American
STLSEA
Wed 10/12
1 stop
SEASTL
Wed 10/19
1 stop
$254
Select
American
STLSEA
Wed 10/12
1 stop
SEASTL
Tue 10/18
1 stop
$254
Select
American
STLSEA
Sat 10/15
1 stop
SEASTL
Wed 10/19
1 stop
$254
Select
United
STLSEA
Tue 10/11
1 stop
SEASTL
Wed 10/19
1 stop
$265
Select
United
STLSEA
Tue 10/11
1 stop
SEASTL
Tue 10/18
1 stop
$265
Select
United
STLSEA
Wed 10/12
1 stop
SEASTL
Wed 10/19
1 stop
$265
Select

How Much is a Flight from St Louis to Seattle?

We have collected flight cost data from across the web for travel from St Louis to Seattle, and have found the average flight price for this trip to be $251.

Where To Buy Cheap Flights from St Louis to Seattle?

The best way to find a great deal on airfare is to search multiple sites. When you run a search on FareCompare, we search multiple sites and fare sources all at once so you don't have to - which is why we thinking FareCompare is the best place to find cheap tickets. Airlines can adjust prices for tickets from St Louis to Seattle based on the day and time that you decide to book your flight. We have collected data from all airlines, and have found that Tuesdays, Wednesdays, and Saturdays are often the best days to book flights. If you'd like to learn more, read our article about the best time to buy airline tickets.

How far in advance should I book tickets from St Louis to Seattle?

The chart below shows up-to-date information regarding how far in advance to book your flight from St Louis to Seattle.

Non Stop versus Connecting
Advanced PurchaseNon StopConnecting
< 7 days $482 $490
7-14 days $307 $274
14-21 days $247 $254
21-30 days $237 $235
30-60 days $237 $254
60-90 days $277 $285
90+ days $277 $285

Cheapest Day To Fly from St Louis to Seattle

We've examined 21,808,054,587 itinerary searches that we've seen for departures in the next 90 days and found that the cheapest day to fly from St Louis to Seattle is Thursday. See the chart below to compare prices for other days of the week.

Monday Tuesday Wednesday Thursday Friday Saturday Sunday
$257 $247 $237 $235 $257 $247 $275

Compare Flight Prices from St Louis to Seattle by Month

Low priced flights are most commonly available by purchasing between one and three months in advance. International or holiday flights may need to be purchased even further in advance. The chart below shows the cheapest flight prices by month for St Louis to Seattle flights.

Month Origin Destination Carrier Depart Date Return Date Stops Price
September St Louis Seattle Alaska 9/30/16 10/9/16 0 $482
October St Louis Seattle Alaska 10/20/16 10/24/16 1 $235
November St Louis Seattle Alaska 11/1/16 11/4/16 0 $267
December St Louis Seattle Alaska 12/3/16 12/10/16 0 $277
January St Louis Seattle Alaska 1/17/17 1/24/17 0 $277
February St Louis Seattle Alaska 2/5/17 2/11/17 0 $312
March St Louis Seattle American 3/6/17 3/20/17 0 $347
April St Louis Seattle American 4/6/17 4/15/17 0 $347

Cheap Last Minute Flights from St Louis to Seattle

Looking for cheap last minute flights or a weekend getaway? We've got you covered with weekend flight deals from St Louis to Seattle. The chart below shows the best last minute deals and cheap flights this weekend we could find.

Next 30 Days

SunMonTueWedThuFriSat
25 26 27 28 29 30 1
$607
2 3 4 5 6 7 8
$607 $274
9 10 11 12 13 14 15
$274 $257
16 17 18 19 20 21 22
$257 $235
23 24 25 26 27 28 29
$235 $247
30 31 1 2 3 4 5
$247

Connecting Flights vs Direct Flights from St Louis to Seattle

Flights between some cities may be significantly cheaper if you choose a multi-stop airline ticket. Although these connecting flights sacrifice some convenience, on average, travelers save 20%-60% when they choose to fly multi-stop versus a direct flight.

The average price for connecting flights from St Louis to Seattle is $253.

The average price for direct flights from St Louis to Seattle is $264.

The chart below shows up to date information regarding non-stop flights from St Louis to Seattle.

Weekly Direct Flights from St Louis to Seattle - By Carrier
CarrierMonTueWedThuFriSatSunEarliest FlightLatest Flight
Alaska 2 1 1 1 2 2 1 07:00 18:40
Southwest 1 1 1 1 1 1 1 09:30 13:25

One Way Flights vs Round Trip Flights from St Louis to Seattle

We have found that there is often no price difference between buying a round trip flight versus a one way flight. Increased flexibility is the main benefit when it comes to buying a one way flight from St Louis to Seattle. However, booking a round trip flight can be a simpler process. You can compare round trip and one way flights by using our flight comparison.

The average price for one way flights from St Louis to Seattle is not available.

The average price for round trip flights from St Louis to Seattle is $253.

St Louis to Seattle Flight Questions

Below are some common questions that asked about this flight route:

Question: How long is the flight from St Louis to Seattle?
Answer: The average St Louis to Seattle flight time is 4 hours and 11 minutes.
Question: How far is Seattle from St Louis?
Answer: The distance from St Louis to Seattle is 1,704 miles (2,742 kilometers).
Question: How common are direct flights from St Louis to Seattle?
Answer: There are 17 direct flights from St Louis to Seattle.
Question: What are the most popular St Louis airlines for direct flights from St Louis to Seattle?
Answer: Alaska Airlines provides 58% of the non-stop flights between St Louis and Seattle.
Question: What are the most popular connecting cities when flying from St Louis to Seattle?
Answer: Chicago, IL

Airlines in St Louis flying to Seattle Last modified: Sep 24, 2016 2:43 AMNumber of routes searched: 151Number of itineraries searched: 144,998

Wondering which airlines fly out of St Louis to Seattle? We've gathered the average price of St Louis airlines with flights to Seattle. Different airlines offer different levels of comfort and service, so consider convenience when choosing your airline.

Below is the full flight schedule summary showing which days of the week individual carriers offer flights for the next 30 days.

St Louis to Seattle
Airline Connections Mon Tue Wed Thu Fri Sat Sun
American -
American DFW
American ORD
Alaska PDX
American LAX
American PHX
United SFO
United IAH
Delta SLC
Delta MSP
Delta ATL
Delta DTW
Frontier DEN
United IAD
United EWR

St Louis to Seattle Airports

These are the major commercial airports we're currently monitoring in St Louis and Seattle. If your route includes a city with multiple airports, you may be able to find substantial savings by choosing an alternate airport.

Farecompare Research Tools

FareCompare's Flight Schedule Search Tool helps you find information about airline schedule filings, including flight numbers, depart times, and travel distance.

More Cheap Flights

FlightsAirlineLowest Price
Flights from Springfield to Seattle American, Delta, United $326
Flights from Moline to Seattle American, Delta, United $304
Flights from Peoria to Seattle American, Delta, United $304
Flights from Evansville to Seattle American, Delta, United $368
Flights from Bloomington - Normal to Seattle American, Delta $304
Flights from Springfield to Seattle American, United $294
Flights from Champaign to Seattle American $367
Flights from St Louis to Portland American, Alaska, Delta, United $276
Flights from St Louis to Vancouver American, Air Canada, Alaska, Delta, United, WestJet $353
Flights from St Louis to Las Vegas American, Delta, Frontier, United $112
Flights from St Louis to Victoria American, Air Canada, Alaska, Delta, United, WestJet $446
Flights from St Louis to Los Angeles American, Alaska, Delta, Frontier, United $239
Flights from St Louis to San Francisco American, Alaska, Delta, Frontier, United $264
Flights from Springfield to Portland American, Delta, United $354
Flights from Moline to Portland American, Delta, United $354
Flights from St Louis to Bellingham American, Alaska $522
Flights from Bloomington - Normal to Portland American, Delta $304
Flights from Springfield to Vancouver American, Delta, United $449
Flights from St Louis to Chicago American, United $217
Flights from Moline to Vancouver American, Delta, United $427
Flights from St Louis to Dallas - Ft Worth American, Alaska $213
Flights from Peoria to Vancouver American, Delta, United $626
Flights from Peoria to Portland American, Delta, United $304
Flights from Evansville to Portland American, Delta, United $393
Flights from St Louis to Denver Delta, Frontier, United $87
Flights from St Louis to Phoenix American, Alaska, Delta, Frontier, United $134
Flights from St Louis to Wenatchee Alaska Check Dates
Flights from St Louis to Atlanta American, Delta, Frontier $49
Flights from Champaign to Portland American $613
Flights from Springfield to Portland American, United $329
Cheap Flights from St Louis to Seattle