| Outbound | Return | Airlines | Shop | Baggage | Price | ||
|---|---|---|---|---|---|---|---|
| Best option St. Louis Seattle-Tacoma | Outbound 10/18/25 direct HA7126 04h 27min | Return 11/17/25 direct HA6939 03h 56min |  Hawaiian Airlines |  | ? | $214 | |
| 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 10/18/25 direct AS0388 04h 27min | Return 11/17/25 direct AS0388 03h 52min |  Alaska Airlines |  | ? | $225 | |
| St. Louis Seattle-Tacoma | Outbound 10/18/25 direct AS0388 04h 27min | Return 11/17/25 direct AS0472 03h 56min | Alaska Airlines |  | $230 | ||
| St. Louis Seattle-Tacoma | Outbound 10/18/25 direct AS0388 04h 27min | Return 11/17/25 direct AS0472 03h 56min | Alaska Airlines |  | ? | $231 | |
| 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 09/04/25 1 Stopover (DFW) AA1363, AA1809 08h 39min | Return 09/28/25 direct AS0472 03h 56min |  American Airlines | | ? | $236 | |
| St. Louis Seattle-Tacoma | Outbound 10/18/25 1 Stopover (DEN) F94567, F93405 06h 39min | Return 11/17/25 1 Stopover (DEN) F93406, F93302 25h 07min |  Frontier Airlines | | $237 | ||
| St. Louis Seattle-Tacoma | Outbound 10/18/25 direct AS0388 04h 27min | Return 11/17/25 direct HA6938 03h 52min | Alaska Airlines |  | $240 | ||
| St. Louis Seattle-Tacoma | Outbound 10/18/25 1 Stopover (DFW) AA1363, AA2003 07h 07min | Return 11/17/25 1 Stopover (DFW) AA0757, AA1010 06h 25min | American Airlines |  | ? | $246 |
Stops
- Direct flight
Airline
- Alaska Airlines
- American Airlines
- Hawaiian Airlines
- United Airlines
- Frontier 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 | $ 213,04 |
|---|---|
| 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 $ 183
- Flight St. Louis - Los Angeles from $ 288
- Flight St. Louis - Las Vegas from $ 188
- Flight St. Louis - Tampa from $ 194
- Flight St. Louis - San Francisco from $ 207
- Flight St. Louis - Orlando from $ 165
- Flight St. Louis - Fort Myers from $ 235
- Flight St. Louis - Chicago O'Hare from $ 182
- Flight St. Louis - Phoenix - Sky Harbor from $ 198
- Flight St. Louis - New York from $ 206
Alternative flights to Seattle-Tacoma
- Flight San Francisco - Seattle-Tacoma from $ 116
- Flight New York - Seattle-Tacoma from $ 212
- Flight Los Angeles - Seattle-Tacoma from $ 134
- Flight Anchorage - Seattle-Tacoma from $ 293
- Flight Honolulu - Seattle-Tacoma from $ 363
- Flight Atlanta - Seattle-Tacoma from $ 233
- Flight Las Vegas - Seattle-Tacoma from $ 108
- Flight Denver - Seattle-Tacoma from $ 148
- Flight Miami - Seattle-Tacoma from $ 205
- Flight San Diego - Seattle-Tacoma from $ 152
Flight destinations with a similar price
- Flight Seattle-Tacoma - Istanbul from $ 586
- Flight Seattle-Tacoma - Port of Spain from $ 534
- Flight Seattle-Tacoma - London Heathrow from $ 502
- Flight Seattle-Tacoma - London from $ 502
- Flight Seattle-Tacoma - Dubai from $ 644
- Flight Seattle-Tacoma - Vancouver from $ 130
- Flight Seattle-Tacoma - Toronto from $ 263
- Flight Seattle-Tacoma - Frankfurt from $ 564
- Flight Seattle-Tacoma - Dusseldorf from $ 546
Flight destinations with a similar price
- Flight St. Louis - Tampa from $ 194
- Flight St. Louis - San Francisco from $ 207
- Flight St. Louis - Phoenix - Sky Harbor from $ 198
- Flight St. Louis - New York from $ 206
- Flight St. Louis - Fort Lauderdale from $ 201
- Flight St. Louis - Miami from $ 216
- Flight St. Louis - Newark from $ 204
- Flight St. Louis - San Diego from $ 220
- Flight St. Louis - Minneapolis from $ 198