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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: Aug 31, 2016 1:57 AM

Popular flights from St Louis to Seattle Last modified: Aug 31, 2016 1:57 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.

Alaska
STLSEA
Mon 9/19
1 stop
SEASTL
Fri 9/23
1 stop
$245
Select
Alaska
STLSEA
Wed 10/19
1 stop
SEASTL
Thu 10/20
1 stop
$245
Select
American
STLSEA
Tue 9/13
1 stop
SEASTL
Tue 9/20
1 stop
$274
Select
American
STLSEA
Wed 9/14
1 stop
SEASTL
Wed 9/21
1 stop
$274
Select
American
STLSEA
Sat 9/17
1 stop
SEASTL
Sat 9/24
1 stop
$274
Select
American
STLSEA
Wed 9/21
1 stop
SEASTL
Sat 9/24
1 stop
$274
Select
American
STLSEA
Wed 9/21
1 stop
SEASTL
Tue 9/27
1 stop
$274
Select
United
STLSEA
Tue 9/13
1 stop
SEASTL
Tue 9/20
1 stop
$274
Select
United
STLSEA
Wed 9/14
1 stop
SEASTL
Wed 9/21
1 stop
$274
Select
United
STLSEA
Sat 9/17
1 stop
SEASTL
Sat 9/24
1 stop
$274
Select
United
STLSEA
Wed 9/21
1 stop
SEASTL
Tue 9/27
1 stop
$274
Select
United
STLSEA
Wed 9/21
1 stop
SEASTL
Sat 9/24
1 stop
$274
Select
Frontier
STLSEA
Thu 9/8
1 stop
SEASTL
Sat 9/10
1 stop
$290
Select
Frontier
STLSEA
Thu 9/15
1 stop
SEASTL
Mon 9/19
1 stop
$290
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 $263.

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 $712 $320
7-14 days $267 $274
14-21 days $267 $245
21-30 days $267 $274
30-60 days $257 $245
60-90 days $277 $295
90+ days $287 $295

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
$245 $257 $245 $267 $267 $274 $284

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
August St Louis Seattle United 8/31/16 9/7/16 2 $743
September St Louis Seattle Alaska 9/19/16 9/23/16 1 $245
October St Louis Seattle Alaska 10/19/16 10/20/16 1 $245
November St Louis Seattle Alaska 11/12/16 11/16/16 0 $277
December St Louis Seattle Alaska 12/7/16 12/11/16 0 $287
January St Louis Seattle American 1/13/17 1/19/17 0 $333
February St Louis Seattle Alaska 2/8/17 2/15/17 0 $319
March St Louis Seattle American 3/10/17 3/13/17 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
28 29 30 31 1 2 3
$1,125
4 5 6 7 8 9 10
$1,125 $607
11 12 13 14 15 16 17
$607 $472
18 19 20 21 22 23 24
$472 $267
25 26 27 28 29 30 1
$267 $277
2 3 4 5 6 7 8
$277

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 $298.

The average price for non-stop flights from St Louis to Seattle is $279.

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 1 1 1 2 2 1 07:00 18:40

More Cheap Flights

FlightsAirlineLowest Price
Springfield to Seattle American, Alaska, Delta, United $326
Moline to Seattle American, Alaska, Delta, United $320
Peoria to Seattle American, Delta, United $328
Evansville to Seattle American, Delta, United $391
Bloomington - Normal to Seattle American, Delta $376
Springfield to Seattle American, United $325
Champaign to Seattle American $376
St Louis to Portland American, Alaska, Delta, Frontier, United $249
St Louis to Vancouver American, Air Canada, Alaska, Delta, United, WestJet $348
St Louis to Las Vegas American, Alaska, Delta, Frontier, United $107
St Louis to Victoria American, Air Canada, Alaska, Delta, United, WestJet $295
St Louis to Los Angeles American, Alaska, Delta, Frontier, United $219
St Louis to San Francisco American, Alaska, Delta, Frontier, United $244
Springfield to Portland American, Alaska, Delta, United $376
Moline to Portland American, Alaska, Delta, United $376
St Louis to Bellingham American, Alaska, Delta $338
Bloomington - Normal to Portland American, Delta $376
Springfield to Vancouver American, Alaska, Delta, United $395
St Louis to Chicago American, United $214
Moline to Vancouver American, Alaska, Delta, United $376
St Louis to Dallas - Ft Worth American, Alaska, United $213
Peoria to Vancouver American, Delta, United $370
Peoria to Portland American, Delta, United $376
Evansville to Portland American, Delta, United $391
St Louis to Denver American, Alaska, Delta, Frontier, United $87
St Louis to Phoenix American, Alaska, Delta, Frontier, United $107
St Louis to Wenatchee Alaska $398
St Louis to Atlanta American, Delta, Frontier, United $107
Champaign to Portland American $466
Springfield to Portland American, United $332

Airlines Flying from St Louis to Seattle (STL to SEA) Number of flights searched: 206Last modified: Aug 31, 2016 1:57 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 DFW 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 DTW X X X X X X X
United IAH 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 11 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 10 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.