| Outbound | Return | Airlines | Shop | Baggage | Price | ||
|---|---|---|---|---|---|---|---|
| Best option St. Louis Seattle-Tacoma | Outbound 09/19/25 direct AS0291 04h 24min | Return 09/29/25 direct AS0472 03h 56min |  Alaska Airlines |  | ? | $235 | |
| St. Louis Seattle-Tacoma | Outbound 07/25/25 2 Stopovers (DTW, LAS) NK3897, NK2369, NK0781 33h 09min | Return 08/17/25 2 Stopovers (LAS, DTW) NK0782, NK2376, NK3896 12h 51min |  Spirit Airlines |  | $458 | ||
| St. Louis Seattle-Tacoma | Outbound 09/19/25 direct AS0291 04h 24min | Return 09/29/25 direct AS0472 03h 56min | Alaska Airlines |  | ? | $244 | |
| St. Louis Seattle-Tacoma | Outbound 09/19/25 direct AS0291 04h 24min | Return 09/29/25 direct AS0472 03h 56min | Alaska Airlines |  | $249 | ||
| St. Louis Seattle-Tacoma | Outbound 09/19/25 direct HA7001 04h 30min | Return 09/29/25 direct HA6939 03h 56min |  Hawaiian Airlines |  | $255 | ||
| St. Louis Seattle-Tacoma | Outbound 07/25/25 1 Stopover (SFO) UA2110, UA2400 09h 18min | Return 08/17/25 1 Stopover (ORD) UA1832, UA4613 08h 20min |  United Airlines |  | ? | $307 | |
| St. Louis Seattle-Tacoma | Outbound 07/25/25 1 Stopover (SFO) UA2110, UA2400 09h 18min | Return 08/17/25 1 Stopover (ORD) UA1832, UA4613 08h 20min | United Airlines |  | ? | $332 | |
| St. Louis Seattle-Tacoma | Outbound 09/19/25 direct HA7126 04h 24min | Return 09/29/25 direct HA6939 03h 56min | Hawaiian Airlines | | ? | $360 | |
| St. Louis Seattle-Tacoma | Outbound 04/29/25 direct WN2960 06h 55min | Return 05/08/25 1 Stopover (ORD) AA1764, AA3239 07h 31min |  Southwest Airlines | | ? | $373 | |
| St. Louis Seattle-Tacoma | Outbound 07/25/25 1 Stopover (DFW) AS4190, AS0550 07h 28min | Return 08/17/25 1 Stopover (CLT) AA0381, AA2686 10h 58min | Alaska Airlines | | ? | $396 |
Stops
- Direct flight
Airline
- Alaska Airlines
- Hawaiian Airlines
- American Airlines
- United Airlines
- Spirit Airlines
Tips and tricks to help you find cheap flights from St. Louis to Seattle Tacoma
Favorite airline: Alaska Airlines
Alaska Airlines is the most popular airline for flights from St. Louis to Seattle-Tacoma.
Alaska Airlines
33 %
Delta
22 %
Spirit Airlines
14 %
Stopover flights are the cheapest connection
Direct flights on this route are $42.00 more expensive on average than flights with a stopover.
non stop flight
1 stop
04h 20min
16h 00min
$232
$190
The favorite connection is non-stop
Non-stop flights are especially popular on this route. 32 % of travelers will book a direct flight.
Route
bookings
Direct flights
04h 20min, from $232
32 %
1 stopover Salt Lake City International Airport, UT
07h 08min, from $210
28 %
1 stopover Las Vegas - McCarran International Airport, NV
07h 54min, from $307
20 %
Important flight information
Flight information: St. Louis - Seattle-Tacoma
| Roundtrip from | $234.28 |
|---|---|
| Flight duration | min. 04:35 / max. 11:35 |
| Return flight duration | min. 03:45/ max. 06:20 |
| Distance | 2748 km |
| Flights per week | 23 |
| Departure airport | Airport St. Louis - Lambert International Airport (STL) |
| Arrival airport | Airport Seattle-Tacoma International Airport, WA (SEA) |
| Destination country | Flights to United States |
Alternative routes to United States
- Flight St. Louis - New York from $186
- Flight St. Louis - Los Angeles from $192
- Flight St. Louis - Las Vegas from $162
- Flight St. Louis - Tampa from $161
- Flight St. Louis - San Francisco from $184
- Flight St. Louis - Orlando from $111
- Flight St. Louis - Fort Myers from $269
- Flight St. Louis - New York from $186
- Flight St. Louis - Atlanta from $179
- Flight St. Louis - Chicago O'Hare from $167
Alternative flights to Seattle-Tacoma
- Flight San Francisco - Seattle-Tacoma from $150
- Flight New York - Seattle-Tacoma from $262
- Flight Los Angeles - Seattle-Tacoma from $156
- Flight Anchorage - Seattle-Tacoma from $323
- Flight Honolulu - Seattle-Tacoma from $368
- Flight Atlanta - Seattle-Tacoma from $189
- Flight Las Vegas - Seattle-Tacoma from $98
- Flight Denver - Seattle-Tacoma from $122
- Flight Miami - Seattle-Tacoma from $183
- Flight San Diego - Seattle-Tacoma from $160
Flight destinations with a similar price
- Flight Seattle-Tacoma - Dubai from $629
- Flight Seattle-Tacoma - Istanbul from $895
- Flight Seattle-Tacoma - London Heathrow from $502
- Flight Seattle-Tacoma - London from $502
- Flight Seattle-Tacoma - Port of Spain from $534
- Flight Seattle-Tacoma - Toronto from $253
- Flight Seattle-Tacoma - Vancouver from $130
- Flight Seattle-Tacoma - Frankfurt from $480
- Flight Seattle-Tacoma - Dusseldorf from $683
Flight destinations with a similar price
- Flight St. Louis - Denver from $232
- Flight St. Louis - Newark from $258
- Flight St. Louis - Jacksonville, Florida from $245