Cheap Flights from IAD to LAS
The Cheapest Round-trip Tickets from to Las Vegas
| Departure at | Return at | Stops | Airline | Find tickets |
|---|---|---|---|---|
| 15 October 2025 | 16 October 2025 | Direct |  | RT from 335 |
The Cheapest Flights for this Month from to Las Vegas
| Departure at | Return at | Stops | Airline | Find tickets |
|---|---|---|---|---|
| 14 March 2025 | 19 March 2025 | Direct |  | RT from 405 |
| 15 October 2025 | 16 October 2025 | 1 Stop | | RT from 335 |
The Cheapest Flights from to Las Vegas for the Year Ahead
| Departure at | Return at | Stops | Airline | Find tickets |
|---|---|---|---|---|
| 14 March 2025 | 19 March 2025 | Direct | | RT from 405 |
| 15 October 2025 | 16 October 2025 | 1 Stop | | RT from 335 |