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Did you mean flights from St Louis to Seattle?

Flights from Seattle to St Louis, United States

Seattle to St Louis Last modified: Aug 21, 2017 3:16 -04:00Prices shown were found by travelers like you over the past 30 days

We've scanned 21,116,276,009 round trip itineraries and found the cheapest flights to St Louis. Frontier & Alaska frequently offer the best deals to St Louis flights, or select your preferred carrier below to see the cheapest days to fly.

Frontier
SEASTL
Tue 11/7
1 stop
STLSEA
Tue 11/14
1 stop
$296
Alaska
SEASTL
Wed 9/6
nonstop
STLSEA
Wed 9/13
nonstop
$307
American
SEASTL
Wed 9/6
1 stop
STLSEA
Wed 9/13
1 stop
$320
United
SEASTL
Wed 9/6
1 stop
STLSEA
Wed 9/13
1 stop
$324

How Much is a Flight from Seattle to St Louis? Prices shown were found by travelers like you over the past 30 days

We have collected flight cost data from across the web for travel from Seattle to St Louis, and have found the average flight price for this trip to be $313.

Where To Buy Cheap Flights from Seattle to St Louis?

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 think FareCompare is the best place to find cheap tickets. Airlines can adjust prices for tickets from Seattle to St Louis 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 Seattle to St Louis? Prices shown were found by travelers like you over the past 30 days

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

Non Stop versus Connecting
Advanced PurchaseNon StopConnecting
< 7 days $827 $464
7-14 days $371 $379
14-21 days $307 $315
21-30 days $357 $320
30-60 days $319 $310
60-90 days $319 $296
90+ days $319 $310

Cheapest Day To Fly from Seattle to St Louis Prices shown were found by travelers like you over the past 30 days

We've examined 21,126,400,581 itinerary searches that we've seen for departures in the next 90 days and found that the cheapest day to fly from Seattle to St Louis is Tuesday. See the chart below to compare prices for other days of the week.

Monday Tuesday Wednesday Thursday Friday Saturday Sunday
$319$296$307$310$310$314$333

Compare Flight Prices from Seattle to St Louis by Month Prices shown were found by travelers like you over the past 30 days

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 Seattle to St Louis flights.

Month Origin Destination Carrier Depart Date Return Date Stops Price
August Seattle St Louis Frontier 8/31/17 9/3/17 1 $396
September Seattle St Louis Alaska 9/6/17 9/13/17 0 $307
October Seattle St Louis Frontier 10/20/17 10/23/17 1 $310
November Seattle St Louis Frontier 11/7/17 11/14/17 1 $296
December Seattle St Louis Frontier 12/12/17 12/18/17 1 $310
March Seattle St Louis United 3/28/18 4/9/18 1 $364
April Seattle St Louis Alaska 4/12/18 4/16/18 0 $371
June Seattle St Louis United 6/1/18 6/3/18 1 $437

Cheap Last Minute Flights from Seattle to St Louis Prices shown were found by travelers like you over the past 30 days

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

Next 30 Days

SunMonTueWedThuFriSat
20 21 22 23 24 25 26
$464
27 28 29 30 31 1 2
$464 $396
3 4 5 6 7 8 9
$396 $321
10 11 12 13 14 15 16
$321 $346
17 18 19 20 21 22 23
$346 $330
24 25 26 27 28 29 30
$330

Connecting Flights vs Direct Flights from Seattle to St Louis Prices shown were found by travelers like you over the past 30 days

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 Seattle to St Louis is $349.

The average price for direct flights from Seattle to St Louis is $358.

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

Weekly Direct Flights from Seattle to St Louis - By Carrier
CarrierMonTueWedThuFriSatSunEarliest FlightLatest Flight
Alaska 2 2 2 2 2 2 2 10:20 15:30
Major Airlines 1 1 1 1 1 1 1 08:50 10:00

One Way Flights vs Round Trip Flights from Seattle to St Louis Prices shown were found by travelers like you over the past 30 days

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 Seattle to St Louis. 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 Seattle to St Louis is not available.

The average price for round trip flights from Seattle to St Louis is $348.

Seattle to St Louis Flight Questions

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

Question: How long is the flight from Seattle to St Louis?
Answer: The average Seattle to St Louis flight time is 3 hours and 51 minutes.
Question: How far is St Louis from Seattle?
Answer: The distance from Seattle to St Louis is 1,704 miles (2,742 kilometers).
Question: How common are direct flights from Seattle to St Louis?
Answer: There are 21 direct flights from Seattle to St Louis.
Question: What are the most popular Seattle airlines for direct flights from Seattle to St Louis?
Answer: Alaska Airlines provides 66% of the non-stop flights between Seattle and St Louis.
Question: What are the most popular connecting cities when flying from Seattle to St Louis?
Answer: Chicago, IL

Airlines in Seattle flying to St Louis Last modified: Aug 21, 2017 3:16 -04:00Number of routes searched: 149Number of itineraries searched: 58,411

Wondering which airlines fly out of Seattle to St Louis? We've gathered the average price of Seattle airlines with flights to St Louis. 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.

Seattle to St Louis
Airline Connections Mon Tue Wed Thu Fri Sat Sun
American -
Alaska -
American CLT
American DFW
American LAX
American MIA
Alaska DCA
Alaska DFW
Alaska LAX
Alaska ORD
Major Airlines ATL
Major Airlines CVG
Major Airlines DTW
Major Airlines MSP
Major Airlines SLC
Frontier DEN
United DEN
United EWR
United IAD
United IAH
United ORD

Seattle to St Louis Airports

These are the major commercial airports we're currently monitoring in Seattle and St Louis. 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.

Cheap Flights from Seattle to St Louis