| 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 - Dubai from 644 $
- Flight Seattle-Tacoma - Vancouver from 130 $
- Flight Seattle-Tacoma - Toronto from 263 $
- 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 - 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 $