Cheap Flights from CHI to SEA
The Cheapest Round-trip Tickets from Chicago to Seattle
| Departure at | Return at | Stops | Airline | Find tickets |
|---|---|---|---|---|
| 17 December 2025 | 15 January 2026 | Direct |  | RT from 192 |
The Cheapest Flights for this Month from Chicago to Seattle
| Departure at | Return at | Stops | Airline | Find tickets |
|---|---|---|---|---|
| 5 November 2025 | 12 November 2025 | 1 Stop |  | RT from 219 |
| 17 December 2025 | 15 January 2026 | Direct | | RT from 192 |
| 26 December 2025 | 22 January 2026 | 1 Stop | | RT from 253 |
| 30 December 2025 | 21 January 2026 | 2 Stops |  | RT from 214 |
The Cheapest Flights from Chicago to Seattle for the Year Ahead
| Departure at | Return at | Stops | Airline | Find tickets |
|---|---|---|---|---|
| 5 November 2025 | 12 November 2025 | 1 Stop | | RT from 219 |
| 17 December 2025 | 15 January 2026 | Direct | | RT from 192 |