Cheap Flights from IAD to CHI
The Cheapest Round-trip Tickets from to Chicago
| Departure at | Return at | Stops | Airline | Find tickets |
|---|---|---|---|---|
| 1 January 2026 | 7 January 2026 | Direct |  | RT from 172 |
The Cheapest Flights for this Month from to Chicago
| Departure at | Return at | Stops | Airline | Find tickets |
|---|---|---|---|---|
| 12 December 2025 | 21 December 2025 | 1 Stop | | RT from 617 |
| 13 December 2025 | 20 December 2025 | 1 Stop | | RT from 617 |
| 14 December 2025 | 20 December 2025 | 1 Stop | | RT from 497 |
| 15 December 2025 | 21 December 2025 | 1 Stop | | RT from 384 |
| 16 December 2025 | 21 December 2025 | 1 Stop | | RT from 409 |
| 17 December 2025 | 23 December 2025 | 1 Stop | | RT from 493 |
| 18 December 2025 | 23 December 2025 | 1 Stop | | RT from 457 |
| 19 December 2025 | 27 December 2025 | Direct |  | RT from 609 |
| 20 December 2025 | 21 December 2025 | Direct | | RT from 647 |
| 21 December 2025 | 29 December 2025 | 1 Stop | | RT from 526 |
| 1 January 2026 | 7 January 2026 | 1 Stop | | RT from 172 |
| 2 January 2026 | 11 January 2026 | 1 Stop | | RT from 300 |
| 1 July 2026 | 4 July 2026 | Direct | | RT from 334 |
The Cheapest Flights from to Chicago for the Year Ahead
| Departure at | Return at | Stops | Airline | Find tickets |
|---|---|---|---|---|
| 15 December 2025 | 21 December 2025 | 1 Stop | | RT from 384 |
| 1 January 2026 | 7 January 2026 | 1 Stop | | RT from 172 |
| 1 July 2026 | 4 July 2026 | Direct | | RT from 334 |