Plan to arrive at SEA two hours before your flight. Use SEA Spot Saver for security appointments to reduce wait times.
Round-trip from | $246 (Kiwi.com) |
---|---|
One-way from | $125 (Hawaiian Airlines) |
Popular in | December |
Cheapest in | September |
Average price | $457 |
Good round-trip deal | $289 or less |
Good one-way deal | $171 or less |
Fly from
Fly to
Route
Depart
Return
Price
SeattleSt. Louis
SEA - STL
SEASTL
Seattle/Tacoma Intl
Sat 8/23
8:38 am-2:39 pm
Nonstop4h 01m
Lambert-St Louis
Sat 8/30
6:00 am-8:30 am
Nonstop4h 30m
SeattleSt. Louis
SEA - STL
SEASTL
Seattle/Tacoma Intl
Fri 9/19
6:03 pm-11:59 pm
Nonstop3h 56m
Lambert-St Louis
Tue 9/23
3:35 pm-5:54 pm
Nonstop4h 19m
SeattleSt. Louis
SEA - STL
SEASTL
Seattle/Tacoma Intl
Sun 8/24
6:17 am-9:11 am
1 stop24h 54m
Lambert-St Louis
Tue 9/2
7:54 pm-11:01 pm
1 stop29h 07m
SeattleSt. Louis
SEA - STL
SEASTL
Seattle/Tacoma Intl
Fri 9/5
5:15 am-6:35 pm
2 stops11h 20m
Lambert-St Louis
Sun 9/7
6:05 pm-1:20 am
1 stop9h 15m
SeattleSt. Louis
SEA - STL
SEASTL
Seattle/Tacoma Intl
Wed 8/13
11:30 pm-9:00 am
1 stop7h 30m
Lambert-St Louis
Sat 8/16
5:15 am-10:51 am
1 stop7h 36m
SeattleSt. Louis
SEA - STL
SEASTL
Seattle/Tacoma Intl
Tue 10/7
11:55 pm-8:44 am
1 stop6h 49m
Lambert-St Louis
Sat 11/22
5:30 pm-11:34 pm
1 stop8h 04m
SeattleSt. Louis
SEA - STL
SEASTL
Seattle/Tacoma Intl
Tue 10/7
7:00 am-3:44 pm
1 stop6h 44m
Lambert-St Louis
Wed 11/19
1:35 pm-11:15 pm
2 stops11h 40m
SeattleSt. Louis
SEA - STL
SEASTL
Seattle/Tacoma Intl
Sun 8/24
8:38 am-2:39 pm
Nonstop4h 01m
Lambert-St Louis
Sun 8/31
8:10 am-3:15 pm
1 stop9h 05m
SeattleSt. Louis
SEA - STL
SEASTL
Seattle/Tacoma Intl
Wed 9/10
8:38 am-2:41 pm
Nonstop4h 03m
SeattleSt. Louis
SEA - STL
SEASTL
Seattle/Tacoma Intl
Thu 10/2
6:00 am-7:15 pm
2 stops11h 15m
The best time to book flights from Seattle to St. Louis is 52 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Currently, August is the cheapest month in which you can book a flight from Seattle to St. Louis (average of $311). Flying from Seattle to St. Louis in March is currently the most expensive (average of $356). 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.
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 40% versus a flight in the morning.
Travelers seeking maximum savings on their Seattle to St. Louis flight should consider departing on Tuesday evenings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
The most flights from SEA to STL are scheduled on a Thursday (18 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (7 on average).
Comfort
Overall
Crew
Food
Boarding
Entertainment
Reviews
Anonymous,Aug 2024
SEA - LAS
Comfort
Overall
Crew
Food
Boarding
Entertainment
Reviews
Anonymous,Aug 2024
SEA - LAS
Comfort
Overall
Crew
Food
Boarding
Entertainment
Reviews
Anonymous,Aug 2024
SEA - LAS
Comfort
Overall
Crew
Food
Boarding
Entertainment
Reviews
Anonymous,Aug 2024
SEA - LAS
Comfort
Overall
Crew
Food
Boarding
Entertainment
Reviews
Anonymous,Aug 2024
SEA - LAS
Comfort
Overall
Crew
Food
Boarding
Entertainment
Reviews
Anonymous,Aug 2024
SEA - LAS
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
Cheapest$134 | Average$266 | FlexibilityNo cancel fee | On-time62% | |
Cheapest$182 | Average$301 | FlexibilityNo cancel fee | On-timeN/A | |
Cheapest$186 | Average$457 | FlexibilityNo cancel fee | On-time71% | |
Cheapest$188 | Average$420 | FlexibilityNo cancel fee | On-time63% | |
Cheapest$216 | Average$379 | FlexibilityNo cancel fee | On-time69% | |
Cheapest$236 | Average$417 | FlexibilityNo cancel fee | On-time75% | |
Cheapest$249 | Average$387 | FlexibilityNo cancel fee | On-time85% |