Las Vegas to Washington flights
The cheapest round trip we found from Las Vegas to Washington is $152 (Dec 9 – 11, 1 stop).
LAS to WAS · Round trip · Economy · Prices per person in USD · Price found (2 days ago)
Cheapest found
Cheapest round trip by month
Lowest fare found per departure month| Month | Cheapest round trip |
|---|---|
| November 2026 | $223 |
| December 2026 | $152 (cheapest month) |
Cheapest dates in the next 4 months
Round trip, per person-
Dec 9 – 11 2 nights · leave Wed$152$152 Book
Frontier Airlines 1 stop · 5h 44m -
Nov 21 – 28 7 nights · leave Sat$401$401 Book
Alaska Airlines 1 stop · 6h 51m
Prices change often. The booking site shows the final price before you pay. Other dates? Set an alert
Things to do in Washington
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Plan the rest of your trip
Washington · Dec 9 – 11Partner links: we may earn a commission if you book, at no extra cost to you.
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Flights to Washington from other cities
All flights to Washington Flying the other way? Washington to Las Vegas from $268
Las Vegas to Washington: questions
How much does a flight from Las Vegas to Washington cost?
The cheapest round trip we have found right now is $152, leaving December 9 and returning December 11. Prices are per person, economy, in USD.
Which airports do Las Vegas to Washington flights use?
Las Vegas airports include McCarran International (LAS). Washington airports include Washington Dulles International (IAD) and Ronald Reagan National (DCA). The prices on this page cover every airport in both cities (LAS and WAS are the city codes).
About this route
We track round-trip economy fares from Las Vegas (United States) to Washington (United States) using Travelpayouts / Aviasales data. The cheapest round trip we've found is $152, departing December 9 and returning December 11. The cheapest month to fly in our data is December, from $152. Prices are per person and were correct when found; the final price is set by the airline or booking site when you book.