Flights Washington → Las Vegas
IAD → LAS
Route overview
The flight route from Washington to Las Vegas operates with a high level of punctuality, with 90% of flights arriving on time. Over the course of a year, an average delay per flight is just 2.7 minutes, and the route sees approximately 235 total flights using either Airbus A320 or Boeing 757-200 aircraft. The destination airport serves over 52 million passengers annually, highlighting its significance as a major travel hub.
Your rights on this US flight (DOT)
US flights have no statutory cash compensation for delays. Under the US DOT rules, if your flight is cancelled or significantly changed and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Amenities for controllable delays depend on each airline's contract of carriage.
US flight refund rules & checker →General information, not legal advice.
The Washington (IAD) → Las Vegas (LAS) route is operated by United Airlines. Across 312 flights monitored in recent months, 89% arrived on time (within 15 min of schedule), with an average delay of 5 minutes. The cancellation rate is 1.28%. FlightGuard's average computed risk is 20.1/100 (medium), updated in real time from weather, ATC delays, strikes, NOTAMs, fuel and flight history. At Las Vegas the average ATFM delay is 2.0 minutes (main cause: atfm). Departing from Washington the average ATFM delay is 2.0 minutes.
Heading to Las Vegas: what to expect in this direction
Flying from Washington (IAD) to Las Vegas (LAS) heads west for about 3,316 km, a flight time of roughly 4h 34m.
Departures from Washington on this leg cluster in the overnight window: about 36% of IAD-LAS flights take off then.
Air-traffic congestion: departing Washington the average ATFM delay is 2.0 min (atfm); arriving into Las Vegas it is 2.0 min (atfm).
Across 312 tracked IAD-LAS flights, 89% left on time with an average delay of 5 min and a 1.3% cancellation rate.
Route facts
Flights on this route
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Airline punctuality on this route
| Airline | On-time | Average delay | Cancellations |
|---|---|---|---|
| United Airlines (UA) | 74% | 10 min | 6.9% |
Airlines operating IAD-LAS
Airports
Frequently asked questions about IAD-LAS
On the Washington (IAD) -> Las Vegas (LAS) route, on-time performance is 89% with an average delay of 5 minutes, based on 312 tracked flights.
The cancellation rate on Washington-Las Vegas is 1.28% across 312 monitored flights.
The route is operated by 1 airline: United Airlines.
Enter your flight number on FlightGuard for a real-time analysis based on 9 factors: weather at Las Vegas, ATC delays, strikes, NOTAMs, fuel, airline punctuality and recent trends.
US flights have no statutory cash compensation for delays. Under US DOT rules, if the airline cancels or significantly changes your flight and you decline rebooking, you're owed an automatic refund of the unused ticket. The tarmac-delay limit is 3 hours (domestic) / 4 hours (international). Meals or hotels for controllable delays depend on each airline's contract of carriage.
