Dulles (IAD) to Las Vegas (LAS) flights
2 airlines fly nonstop from Dulles (IAD) to Las Vegas (LAS): Frontier Airlines and United Airlines. The two airports are 2,061 miles (3,317 km) apart. United Airlines is in Star Alliance. There are also 63 ways to fly it with one stop, through Kansas City, Indianapolis and Cincinnati and more.
Airlines flying nonstop from IAD to LAS
- Frontier AirlinesNot in an allianceWho books it
- United AirlinesStar Alliance · bookable with 13 programsWho books it
Book IAD to LAS with points
Loyalty programs that can book at least one of the nonstop airlines, from the Award Booking Guide.
- Air Canada AeroplanBooks United Airlines
- Air New Zealand AirpointsBooks United Airlines
- ANA Mileage ClubBooks United Airlines
- Avianca LifeMilesBooks United Airlines
- Emirates SkywardsBooks United Airlines
- EVA Air Infinity MileageLandsBooks United Airlines
- JetBlue TrueBlueBooks United Airlines
- Lufthansa Miles & MoreBooks United Airlines
- Singapore Airlines KrisFlyerBooks United Airlines
- TAP Miles&GoBooks United Airlines
- Thai Royal Orchid PlusBooks United Airlines
- Turkish Airlines Miles&SmilesBooks United Airlines
- United MileagePlusBooks United Airlines
IAD to LAS with one stop
63 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Kansas City (MCI)United Airlines, then Southwest Airlines and Frontier Airlines
- Via Indianapolis (IND)United Airlines, then Allegiant Air and Southwest Airlines
- Via Cincinnati (CVG)United Airlines, then Delta Air Lines, Frontier Airlines and 1 more
- Via Saint Louis (STL)United Airlines, then Frontier Airlines and Southwest Airlines
- Via Columbus (CMH)United Airlines, then Southwest Airlines
- Via Louisville (SDF)United Airlines, then Southwest Airlines
- Via Denver (DEN)United Airlines the whole way
- Via Pittsburgh (PIT)United Airlines, then Southwest Airlines
- Via South Bend (SBN)Breeze Airways and United Airlines, then Allegiant Air
- Via Chicago (ORD)United Airlines the whole way
- Via Cleveland (CLE)United Airlines the whole way
- Via Albuquerque (ABQ)United Airlines, then Southwest Airlines
- Via Nashville (BNA)United Airlines, then Frontier Airlines, Southwest Airlines and 1 more
- Via Detroit (DTW)Delta Air Lines the whole way
- Via Knoxville (TYS)Allegiant Air the whole way
IAD to LAS: common questions
Which airlines fly nonstop from IAD to LAS?
Frontier Airlines and United Airlines (Star Alliance) fly nonstop from Dulles (IAD) to Las Vegas (LAS).
How far is Dulles from Las Vegas by plane?
Dulles (IAD) and Las Vegas (LAS) are 2,061 miles (3,317 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.
Which points programs can book IAD to LAS award flights?
13 programs can book at least one of the nonstop airlines: Air Canada Aeroplan, Air New Zealand Airpoints, ANA Mileage Club, Avianca LifeMiles, Emirates Skywards, EVA Air Infinity MileageLands, JetBlue TrueBlue, Lufthansa Miles & More and 5 more. Which flights each can book depends on its partners, so check the airline before you transfer points.
How many miles does IAD to LAS cost?
It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for IAD to LAS with taxes and fees.
Where can I connect between Dulles and Las Vegas?
The most direct connections are through Kansas City (MCI), Indianapolis (IND), Cincinnati (CVG), Saint Louis (STL) and Columbus (CMH). On 26 of them the same airline flies both flights, for example United Airlines through Denver.
More routes
Routes are scheduled nonstop flights. The route data is refreshed monthly; this list was last checked November 11, 2026. Seasonal routes and new launches can be missing or end early, so confirm with the airline before you book. Distances are great-circle, the shortest path between the two airports.