Popular in | June |
---|---|
Cheapest in | September |
Round-trip from | $323 |
One-way from | $119 |
Flying to your destination on a Sunday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to St. Louis. Check prices with Cheapflights to find a great deal for your trip.
To save on the cost of your flight from Seattle to St. Louis, book at least 51 days before your planned departure. Booking around this time can save you about 105% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $344 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $460.
September can be a great time to fly to St. Louis from Seattle with a flight ticket averaging about $381. Cheapflights users have found deals in the month of September for as cheap as $144. The most expensive prices can be found in the month of June.
When flying from Seattle to St. Louis, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 26% versus a flight at noon.
One of the most popular airlines traveling from Seattle to St. Louis is Delta. Flights from Delta traveling this route typically cost $366.80 RT. This price is typically 59% cheaper than other airlines that offer Seattle to St. Louis flights. When booking this route, the cheapest RT price found was $171. Seattle/Tacoma Intl Airport is the most common Seattle airport to take off from when flying to St. Louis. Lambert-St Louis Airport is the most popular arrival airport in St. Louis. When flying from Seattle to St. Louis, Delta flights are 13% more popular than any other airline flying that same route.
If you’re traveling from Seattle to St. Louis, one of the more common airlines traveling that route is Spirit Airlines. Seattle to St. Louis flights are typically 58% cheaper than other airlines traveling the same route. Flights from Spirit Airlines typically cost $476.40 RT. The cheapest Spirit Airlines flight found for this route was $157. When traveling from Seattle to St. Louis on Spirit Airlines, the most popular airport to depart from is Seattle/Tacoma Intl Airport and the most popular airport to arrive at is Lambert-St Louis Airport. When flying from Seattle to St. Louis, Spirit Airlines flights are 1% more popular than any other airline flying that same route.
Fly from
Fly to
Budget
$164 - $275
Route
Depart
Return
Price
Seattle/Tacoma IntlLambert-St Louis
SEA - STL
SEASTL
Seattle/Tacoma Intl
Tue 4/16
1 stop10h 12m
Lambert-St Louis
Tue 4/23
1 stop14h 54m
Seattle/Tacoma IntlLambert-St Louis
SEA - STL
SEASTL
Seattle/Tacoma Intl
Mon 4/15
1 stop11h 18m
Lambert-St Louis
Thu 4/18
1 stop22h 34m
Seattle/Tacoma IntlLambert-St Louis
SEA - STL
SEASTL
Seattle/Tacoma Intl
Wed 4/24
1 stop14h 40m
Lambert-St Louis
Wed 5/1
1 stop22h 40m
Seattle/Tacoma IntlLambert-St Louis
SEA - STL
SEASTL
Seattle/Tacoma Intl
Sat 4/20
1 stop15h 23m
Lambert-St Louis
Tue 4/23
1 stop14h 54m
Seattle/Tacoma IntlLambert-St Louis
SEA - STL
SEASTL
Seattle/Tacoma Intl
Mon 4/22
1 stop11h 18m
Lambert-St Louis
Mon 4/29
1 stop13h 51m
Seattle/Tacoma IntlLambert-St Louis
SEA - STL
SEASTL
Seattle/Tacoma Intl
Sat 4/13
1 stop7h 49m
Lambert-St Louis
Sat 4/20
1 stop10h 59m
Seattle/Tacoma IntlLambert-St Louis
SEA - STL
SEASTL
Seattle/Tacoma Intl
Thu 5/30
1 stop5h 37m
Lambert-St Louis
Mon 6/3
1 stop5h 58m
Seattle/Tacoma IntlLambert-St Louis
SEA - STL
SEASTL
Seattle/Tacoma Intl
Sat 4/20
Nonstop3h 59m
Lambert-St Louis
Sat 4/27
Nonstop4h 20m
Seattle/Tacoma IntlLambert-St Louis
SEA - STL
SEASTL
Seattle/Tacoma Intl
Thu 4/11
1 stop14h 39m
Lambert-St Louis
Tue 4/16
3 stops31h 54m
Currently, September is the cheapest month in which you can book a flight from Seattle to St. Louis (average of $323). Flying from Seattle to St. Louis in June is currently the most expensive (average of $384). 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
$326
February
$331
March
$357
April
$346
May
$356
June
$384
July
$380
August
$336
September
$323
October
$323
November
$336
December
$326
STL Temperature | 32 - 80.6 °F |
---|
Boarding
Food
Entertainment
Comfort
Crew
Overall
Reviews
I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.
Boarding
Food
Entertainment
Comfort
Crew
Overall
Reviews
I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.
Boarding
Food
Entertainment
Comfort
Crew
Overall
Reviews
I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.
Boarding
Food
Entertainment
Comfort
Crew
Overall
Reviews
I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.
Boarding
Food
Entertainment
Comfort
Crew
Overall
Reviews
I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.
Boarding
Food
Entertainment
Comfort
Crew
Overall
Reviews
I paid for an aisle seat and found I was bumped to the middle seat. No entertainment at all, bathroom was so tiny, a woman had a hard time in there. Seems it was considered for men only. This was my first time on Alaska airlines. I don’t think I want to fly on Alaska Airlines again.
0%of flight departures | Early morningMidnight to 6 am |
---|---|
30%of flight departures | Morning6 am to noon |
70%of flight departures | AfternoonNoon to 6 pm |
0%of flight departures | Evening6 pm to midnight |
Sunday | 9daily flights |
---|---|
Monday | 8daily flights |
Tuesday | 4daily flights |
Wednesday | 8daily flights |
Thursday | 4daily flights |
Friday | 8daily flights |
Saturday | 3daily flights |
Cheapflights makes it easy to find Seattle to St. Louis flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.
By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to St. Louis from Seattle.
Yes, we can. To see specific flights from Seattle to St. Louis with no change fees, users can toggle flexible booking options after using the search form above to find flights.
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Cancellation policies vary by airline and fare type. After entering your flight details, you can view the cancellation policies for each deal in the search results. Some deals may offer flexibility in terms of cancellation and changes.