Popular in | July |
---|---|
Cheapest in | November |
Round-trip from | $245 |
One-way from | $135 |
Leaving on a Wednesday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 20% on the overall cost on flights from St. Louis to Seattle.
Find a great deal and save up to 111% by booking at least 10 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from St. Louis to Seattle within the next two weeks, with the cheapest ticket starting at $268.
Flights from St. Louis to Seattle lean towards being more expensive in July. Prices are generally better when you fly from St. Louis to Seattle in November, with the cheapest ticket starting at $115.
Unlike in the evening, when flights are generally more expensive, you can save up to 28% on flights from St. Louis to Seattle by exploring options for tickets in the afternoon.
One of the most popular airlines traveling from St. Louis to Seattle is Frontier. Flights from Frontier traveling this route typically cost $397.19 RT. This price is typically 43% cheaper than other airlines that offer St. Louis to Seattle flights. When booking this route, the cheapest RT price found was $167. Lambert-St Louis Airport is the most common St. Louis airport to take off from when flying to Seattle. Seattle/Tacoma Intl Airport is the most popular arrival airport in Seattle. When flying from St. Louis to Seattle, Frontier flights are 11% more popular than any other airline flying that same route.
If you’re traveling from St. Louis to Seattle, one of the more common airlines traveling that route is American Airlines. Flights from American Airlines traveling this route typically cost $486.19 RT. This price is typically 47% more expensive than other airlines that offer St. Louis to Seattle flights. When booking this route, the cheapest RT price found was $176. The most popular departure airport in St. Louis when flying to Seattle is Lambert-St Louis Airport. The most popular airport to fly into when visiting Seattle is Seattle/Tacoma Intl Airport. When flying from St. Louis to Seattle, American Airlines flights are 1% more popular than any other airline flying that same route.
Fly from
Fly to
Budget
$139 - $361
Route
Depart
Return
Price
Lambert-St LouisSeattle/Tacoma Intl
STL - SEA
STLSEA
Lambert-St Louis
Mon 5/20
1 stop13h 34m
Seattle/Tacoma Intl
Tue 5/28
1 stop11h 06m
Lambert-St LouisSeattle/Tacoma Intl
STL - SEA
STLSEA
Lambert-St Louis
Sat 8/31
1 stop14h 37m
Seattle/Tacoma Intl
Tue 9/3
1 stop12h 27m
Lambert-St LouisSeattle/Tacoma Intl
STL - SEA
STLSEA
Lambert-St Louis
Mon 5/13
1 stop13h 51m
Seattle/Tacoma Intl
Mon 5/20
1 stop12h 13m
Lambert-St LouisSeattle/Tacoma Intl
STL - SEA
STLSEA
Lambert-St Louis
Sat 5/25
1 stop13h 00m
Seattle/Tacoma Intl
Tue 5/28
1 stop11h 06m
Lambert-St LouisSeattle/Tacoma Intl
STL - SEA
STLSEA
Lambert-St Louis
Tue 9/3
1 stop11h 36m
Seattle/Tacoma Intl
Sat 11/2
1 stop8h 11m
Lambert-St LouisSeattle/Tacoma Intl
STL - SEA
STLSEA
Lambert-St Louis
Wed 5/29
Nonstop4h 19m
Seattle/Tacoma Intl
Wed 6/5
Nonstop3h 59m
Lambert-St LouisSeattle/Tacoma Intl
STL - SEA
STLSEA
Lambert-St Louis
Wed 5/29
1 stop10h 53m
Seattle/Tacoma Intl
Wed 6/5
2 stops31h 54m
Lambert-St LouisSeattle/Tacoma Intl
STL - SEA
STLSEA
Lambert-St Louis
Wed 9/18
1 stop7h 00m
Seattle/Tacoma Intl
Tue 9/24
1 stop7h 20m
Lambert-St LouisSeattle/Tacoma Intl
STL - SEA
STLSEA
Lambert-St Louis
Wed 8/28
1 stop8h 15m
Seattle/Tacoma Intl
Sat 8/31
Nonstop3h 50m
Currently, December is the cheapest month in which you can book a flight from St. Louis to Seattle (average of $245). Flying from St. Louis to Seattle in July is currently the most expensive (average of $408). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
January
$247
February
$254
March
$288
April
$294
May
$320
June
$406
July
$408
August
$343
September
$278
October
$257
November
$258
December
$245
SEA Temperature | 41 - 66.2 °F |
---|
Comfort
Food
Crew
Boarding
Entertainment
Overall
Reviews
I was very relaxed and calm so I took a brief nap. The flight was pretty smooth.
Comfort
Food
Crew
Boarding
Entertainment
Overall
Reviews
I was very relaxed and calm so I took a brief nap. The flight was pretty smooth.
Comfort
Food
Crew
Boarding
Entertainment
Overall
Reviews
I was very relaxed and calm so I took a brief nap. The flight was pretty smooth.
Comfort
Food
Crew
Boarding
Entertainment
Overall
Reviews
I was very relaxed and calm so I took a brief nap. The flight was pretty smooth.
Comfort
Food
Crew
Boarding
Entertainment
Overall
Reviews
I was very relaxed and calm so I took a brief nap. The flight was pretty smooth.
Comfort
Food
Crew
Boarding
Entertainment
Overall
Reviews
I was very relaxed and calm so I took a brief nap. The flight was pretty smooth.
0%of flight departures | Early morningMidnight to 6 am |
---|---|
55%of flight departures | Morning6 am to noon |
45%of flight departures | AfternoonNoon to 6 pm |
0%of flight departures | Evening6 pm to midnight |
Sunday | 4daily flights |
---|---|
Monday | 8daily flights |
Tuesday | 6daily flights |
Wednesday | 4daily flights |
Thursday | 6daily flights |
Friday | 8daily flights |
Saturday | 6daily flights |
Deals for St. Louis to Seattle flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.
Cheapflights helps you find that perfect flight to Seattle from St. Louis by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!
Certainly. Search results for flights to Seattle from St. Louis shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Of course! You can now track prices for flights from St. Louis to Seattle and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.