Washington to Las Vegas flights
The cheapest round trip we found from Washington to Las Vegas is $238 (Dec 12 – 14, 1 stop), 53% below the usual $505.
WAS to LAS · Round trip · Economy · Prices per person in USD · Price found (3 days ago)
Cheapest found
Cheapest round trip by month
Lowest fare found per departure month| Month | Cheapest round trip |
|---|---|
| November 2026 | $403 |
| December 2026 | $238 (cheapest month) |
| January 2027 | No fares found yet |
| February 2027 | No fares found yet |
| March 2027 | No fares found yet |
| April 2027 | No fares found yet |
| May 2027 | $397 |
| June 2027 | $505 |
| July 2027 | $515 |
| August 2027 | $506 |
Cheapest dates in the next 4 months
Round trip, per person-
Dec 12 – 14 2 nights · leave Sat$238 −53% vs usual$238 −53% vs usual Book
Frontier Airlines 1 stop · 6h 35m -
Dec 25 – 31 6 nights · leave Fri$375 −26% vs usual$375 −26% vs usual Book
Frontier Airlines Nonstop · 5h 17m
-
Dec 1 – 4 3 nights · leave Tue$383 −24% vs usual$383 −24% vs usual Book
Frontier Airlines 2 stops · 9h 53m
Prices change often. The booking site shows the final price before you pay. Other dates? Set an alert
Things to do in Las Vegas
One Go City pass for High Roller observation wheel, The STRAT tower, The Mob Museum and more
- All-Inclusive Pass Unlimited Visit as many attractions as you like for 2–5 days from $169 See pass
- Explorer Pass Pick 3–7 of 45 attractions from $99 See pass
- Essentials Pass A few top attractions, chosen as you go from $79 See pass
Go City prices checked Oct 23, 2026; the final price is on Go City. Partner links: we may earn a commission if you book, at no extra cost to you.
Plan the rest of your trip
Las Vegas · Dec 12 – 14Partner links: we may earn a commission if you book, at no extra cost to you.
Good to know
More from Washington
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Flights to Las Vegas from other cities
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Washington to Las Vegas: questions
How much does a flight from Washington to Las Vegas cost?
The cheapest round trip we have found right now is $238, leaving December 12 and returning December 14. The usual price on this route is about $505, so this fare is 53% less. Prices are per person, economy, in USD.
What is the cheapest month to fly from Washington to Las Vegas?
December 2026, with round trips from $238. The most expensive month in our data is July (from $515). Based on the 6 months ahead we have prices for.
Which airports do Washington to Las Vegas flights use?
Washington airports include Washington Dulles International (IAD) and Ronald Reagan National (DCA). Las Vegas airports include McCarran International (LAS). The prices on this page cover every airport in both cities (WAS and LAS are the city codes).
About this route
We track round-trip economy fares from Washington (United States) to Las Vegas (United States) using Travelpayouts / Aviasales data. The cheapest round trip we've found is $238, departing December 12 and returning December 14, about 53% below the usual $505. The cheapest month to fly in our data is December, from $238. Prices are per person and were correct when found; the final price is set by the airline or booking site when you book.