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Did you mean flights from Seattle to St Louis?

Cheap Flights from St Louis to Seattle, WA, United States - STL to SEA Last modified: Jul 29, 2016 2:52 AM

Popular flights from St Louis to Seattle Last modified: Jul 29, 2016 2:52 AM

We’ve got the inside scoop on finding the best time to fly for the best price. Not sure when to travel for your next vacation? Find details below on when-to-fly and when-to-buy.

Frontier
STLSEA
Tue 10/18
1 stop
SEASTL
Tue 10/25
1 stop
$244
Select
Alaska
STLSEA
Fri 10/28
1 stop
SEASTL
Wed 11/2
1 stop
$270
Select
United
STLSEA
Wed 8/17
1 stop
SEASTL
Tue 8/23
1 stop
$285
Select
United
STLSEA
Sat 8/20
1 stop
SEASTL
Sat 9/3
1 stop
$285
Select
United
STLSEA
Tue 9/6
1 stop
SEASTL
Wed 9/21
1 stop
$285
Select
United
STLSEA
Sat 9/10
1 stop
SEASTL
Wed 9/14
1 stop
$285
Select
United
STLSEA
Sat 9/17
1 stop
SEASTL
Tue 9/27
1 stop
$285
Select
American
STLSEA
Sat 8/13
1 stop
SEASTL
Wed 8/17
1 stop
$294
Select
American
STLSEA
Tue 8/16
1 stop
SEASTL
Tue 8/23
1 stop
$294
Select
American
STLSEA
Sat 8/20
1 stop
SEASTL
Sat 9/3
1 stop
$294
Select
American
STLSEA
Tue 8/23
1 stop
SEASTL
Tue 8/30
1 stop
$294
Select
American
STLSEA
Tue 8/23
1 stop
SEASTL
Wed 8/31
1 stop
$294
Select

How Much Does it Cost to Fly from St Louis to Seattle (STL to SEA)?

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 $272.

When Can I Buy the Cheapest Flight from St Louis to Seattle (STL to SEA)?

Airlines can adjust prices for plane 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 discovered that the best days to book flights are Tuesdays, Wednesdays, and Saturdays. Read our article to find more information about the best time to buy airline tickets.

How far in advance should you book flights from St Louis to Seattle

The chart below shows up-to-date information regarding how far in advance a flight from St Louis to Seattle should be booked.

Non Stop versus 1-Stop
Advanced PurchaseNon StopOne Stop
< 7 days $607 $552
7-14 days $377 $314
14-21 days $277 $261
21-30 days $277 $261
30-60 days $277 $261
60-90 days $277 $244
90+ days $279 $270

Cheapest Day To Fly from St Louis to Seattle

The chart below shows up-to-date information regarding the cheapest days to fly from St Louis to Seattle.

Monday Tuesday Wednesday Thursday Friday Saturday Sunday
$287 $244 $277 $278 $278 $277 $261

Lowest Fares Chart By Month from St Louis to Seattle

The chart below shows the lowest fare by month when flying from St Louis to Seattle.

Month Origin Destination Carrier Depart Date Return Date Stops Price
July St Louis Seattle United 7/31/16 8/3/16 2 $871
August St Louis Seattle Frontier 8/16/16 8/19/16 1 $261
September St Louis Seattle Frontier 9/6/16 9/21/16 1 $261
October St Louis Seattle Frontier 10/18/16 10/25/16 1 $244
November St Louis Seattle Alaska 11/8/16 11/15/16 0 $279
December St Louis Seattle Frontier 12/2/16 12/4/16 1 $278
January St Louis Seattle American 1/13/17 1/20/17 0 $347
February St Louis Seattle American 2/20/17 2/28/17 0 $347

Cheapest Weekend Non-Stop Flights for the Next 30 Days from St Louis to Seattle

If you're ready to take a trip in the next 30 days and want to fly on the weekend, you might be wondering which weekend is the cheapest to fly. The chart below shows up-to-date data regarding weekend flight prices from St Louis to Seattle.

Next 30 Days

SunMonTueWedThuFriSat
31 1 2 3 4 5 6
$607
7 8 9 10 11 12 13
$607 $442
14 15 16 17 18 19 20
$442 $287
21 22 23 24 25 26 27
$287 $287
28 29 30 31 1 2 3
$287 $346
4 5 6 7 8 9 10
$346
TIPSave $92 by flying into Vancouver instead of Seattle from St Louis

Non-Stop vs Connecting Flights from St Louis to Seattle (STL to SEA)

Your St Louis to Seattle flight can be significantly cheaper by choosing 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 $277.

The average price for non-stop flights from St Louis to Seattle is $294.

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

Nonstop Flight Details from St Louis to Seattle
CarrierMonTueWedThuFriSatSunEarliest FlightLatest Flight
Alaska 2 2 2 2 2 2 2 07:05 18:35

More Cheap Flights

FlightsAirlineLowest Price
Springfield to Seattle American, Alaska, United $326
Moline to Seattle American, Alaska, United $314
Peoria to Seattle American, United $314
Evansville to Seattle American, United $375
Bloomington - Normal to Seattle American $412
Springfield to Seattle American, Alaska, United $314
Champaign to Seattle American $325
St Louis to Portland American, Alaska, Frontier, United $244
St Louis to Vancouver American, Air Canada, Alaska, Frontier, United, WestJet $397
St Louis to Las Vegas American, Alaska, Frontier, United $97
St Louis to Victoria American, Air Canada, Alaska, United, WestJet Check Dates
St Louis to Los Angeles American, Alaska, Frontier, United $244
St Louis to San Francisco American, Alaska, Frontier, United $244
Springfield to Portland American, Alaska, United $412
Moline to Portland American, Alaska, United $406
St Louis to Bellingham American, Alaska, United $348
Bloomington - Normal to Portland American $412
Springfield to Vancouver American, Alaska, United, WestJet $508
St Louis to Chicago American, Alaska, United $211
Moline to Vancouver American, Alaska, United, WestJet $427
St Louis to Dallas - Ft Worth American, Alaska, United $209
Peoria to Vancouver American, Air Canada, United, WestJet $423
Peoria to Portland American, United $412
Evansville to Portland American, United $412
St Louis to Denver American, Alaska, Frontier, United $97
St Louis to Phoenix American, Alaska, Frontier, United $244
St Louis to Wenatchee Alaska $350
St Louis to Atlanta American, Alaska, Frontier, United $83
Champaign to Portland American $400
Springfield to Portland American, United $412

Airlines Flying from St Louis to Seattle (STL to SEA) Number of flights searched: 209Last modified: Jul 29, 2016 2:53 AM

Below are the different airlines that fly from St Louis to Seattle with the average price of their plane tickets. Just remember that different airlines offer different levels of comfort and service, so consider convenience when choosing your airline.

Below is the full flight schedule summary of the next 30 days for flights from St Louis to Seattle.

St Louis to Seattle
Airline Connections Mon Tue Wed Thu Fri Sat Sun
American LAX X X X X X X X
Alaska - X X X X X X X
Alaska PDX X X X X X X X
Delta SLC X X X X X X X
United SFO X X X X X X X
Southwest - X X X X X X X
Southwest MDW X X X X X X X

Airports for Your Route

These pages contain information about the major airports in St Louis and Seattle, so you can feel comfortable knowing how to get around whether you are about to take off or you just landed.

St Louis to Seattle Flight Questions

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

Question: How long is a direct flight from St Louis to Seattle?
Answer: The average St Louis to Seattle flight time is 4 hours and 15 minutes.
Question: How many miles are there between St Louis and Seattle?
Answer: The distance from St Louis to Seattle is 1704 miles.
Question: How common are direct flights from St Louis to Seattle?
Answer: There are 14 direct flights from St Louis to Seattle.
Question: What is the most popular airline for non-stop flights from St Louis to Seattle?
Answer: Alaska Airlines provides 100% 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: Denver, CO
St Louis (STL) To Seattle, WA (SEA) Flights: Cheap Flights From St Louis To Seattle | FareCompare.