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Las Vegas (LAS) to Washington (IAD) flights

There are direct flights from Las Vegas McCarran International Airport to Washington Dulles International Airport, sold by 2 airlines (including codeshares): Frontier Airlines and United Airlines. The distance is 3,316 km, about 4h 35m in the air. There are also 39 one-stop options, via airports such as Chicago, Dallas-Fort Worth and Atlanta.

Live fares for LAS → IADSee all routes on the map
3,316 kmdistance
~4h 35mdirect flight time (estimate)
2direct airlines
39one-stop options

Direct flights from Las Vegas to Washington

RouteAirlines (incl. codeshares)DistanceTime (est.)
LAS → IADFrontier Airlines, United Airlines3,316 km~4h 35m

Best one-stop connections

Through the biggest hubs first. Times include about 100 minutes to change planes.

ViaAirlinesDistanceTime (est.)
ORD ChicagoAmerican Airlines and Frontier Airlines then United Airlines3,377 km~6h 45m
DFW Dallas-Fort WorthAmerican Airlines and Frontier Airlines then American Airlines and United Airlines3,577 km~7h
ATL AtlantaAir France and ITA Airways then Air France and Aeromexico3,664 km~7h 10m
IAH HoustonUnited Airlines then United Airlines3,876 km~7h 25m
JFK New YorkAmerican Airlines and jetBlue then jetBlue and United Airlines3,976 km~7h 30m
EWR NewarkUnited Airlines then United Airlines3,917 km~7h 25m
DEN DenverFrontier Airlines and United Airlines then United Airlines and Southwest Airlines3,341 km~6h 45m
YYZ TorontoAmerican Airlines and Air Canada then Air Canada and United Airlines3,677 km~7h 10m
LAX Los AngelesAmerican Airlines and Frontier Airlines then American Airlines and United Airlines4,054 km~7h 35m
CLT CharlotteAmerican Airlines then American Airlines and United Airlines3,594 km~7h 5m
PHL PhiladelphiaAmerican Airlines and Frontier Airlines then United Airlines3,711 km~7h 10m
PHX PhoenixAmerican Airlines and Frontier Airlines then United Airlines3,552 km~7h

More from Las Vegas and Washington

Routes come from current airline fares, updated weekly (last update 9 November 2026), plus older schedule data for airports with few recent fares. “Direct” can include a few same-plane flights with a stop. Flight times are estimates from distance. Always check with the airline before booking.