Cheap Flights from CHI to SEA
The Cheapest Round-trip Tickets from Chicago to Seattle
| Departure at | Return at | Stops | Airline | Find tickets |
|---|---|---|---|---|
| 31 August 2026 | 1 September 2026 | Direct |  | RT from 212 |
The Cheapest Flights for this Month from Chicago to Seattle
| Departure at | Return at | Stops | Airline | Find tickets |
|---|---|---|---|---|
| 17 July 2026 | 20 July 2026 | 1 Stop |  | RT from 399 |
| 23 July 2026 | 27 July 2026 | Direct | | RT from 308 |
| 24 July 2026 | 27 July 2026 | Direct | | RT from 338 |
| 27 July 2026 | 29 July 2026 | Direct | | RT from 461 |
| 28 July 2026 | 1 August 2026 | 1 Stop | | RT from 363 |
| 4 August 2026 | 5 August 2026 | 2 Stops | | RT from 308 |
| 5 August 2026 | 7 August 2026 | 1 Stop | | RT from 314 |
| 6 August 2026 | 9 August 2026 | 2 Stops | | RT from 303 |
| 7 August 2026 | 8 August 2026 | 1 Stop | | RT from 377 |
| 10 August 2026 | 12 August 2026 | 1 Stop | | RT from 323 |
| 14 August 2026 | 17 August 2026 | 1 Stop | | RT from 251 |
| 17 August 2026 | 19 August 2026 | 1 Stop | | RT from 243 |
| 24 August 2026 | 26 August 2026 | 1 Stop | | RT from 267 |
| 31 August 2026 | 1 September 2026 | 1 Stop | | RT from 212 |
The Cheapest Flights from Chicago to Seattle for the Year Ahead
| Departure at | Return at | Stops | Airline | Find tickets |
|---|---|---|---|---|
| 23 July 2026 | 27 July 2026 | Direct | | RT from 308 |
| 31 August 2026 | 1 September 2026 | 1 Stop | | RT from 212 |