Cheap flights from Washington to Las Vegas

One-way fares from $54 · WAS → LAS · prices found by travellers in the last 48 hours

Compare all dates Las Vegas → Washington
Cheapest fare
$54

Frontier Airlines · Thu, Dec 31

Cheapest month
December

from $54

Direct flights
Yes

Frontier Airlines

Flight time
5h 17m

3,350 km

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Cheapest month to fly from Washington to Las Vegas

Lowest one-way fare per person in each month. Choose a month to see every date.

  1. November 2026 $173
  2. December 2026 Cheapest $54
  3. April 2027 $244

Cheapest dates in December 2026

The lowest fares we've seen for each day, cheapest first.

Frontier Airlines
Depart20:51 Thu, Dec 31IAD → LAS 5h 17m · Direct
$54one way, per person
View deal
Frontier Airlines
Depart20:26 Wed, Dec 30IAD → LAS 6h 33m · 1 stop
$137one way, per person
View deal
Southwest Airlines
Depart19:40 Mon, Dec 28DCA → LAS 6h 10m · 1 stop
$157one way, per person
View deal
Frontier Airlines
Depart20:51 Wed, Dec 23IAD → LAS 5h 17m · Direct
$164one way, per person
View deal
See every date in December 2026 →

Plan the rest of your trip to Las Vegas

Where to stay, what to do and getting around, from our travel partners.

Where to stay

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Things to do

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Getting around

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About flights from Washington to Las Vegas

Washington (WAS) and Las Vegas (LAS) are about 3,350 km apart. Direct flights take around 5h 17m, and recent direct fares were with Frontier Airlines. Over the next few months, one-way fares start from $54, and December 2026 is currently the cheapest month to fly.

These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.

Frequently asked questions

How much is a flight from Washington to Las Vegas?

The cheapest one-way fare we've seen recently is $54 with Frontier Airlines, departing Thursday, December 31, 2026. Over the coming months, the lowest fare in each month ranges from $54 to $244.

What is the cheapest month to fly from Washington to Las Vegas?

December 2026 currently has the lowest fares, from $54 one way.

Are there direct flights from Washington to Las Vegas?

Yes. Recent direct fares were with Frontier Airlines.

How long is the flight from Washington to Las Vegas?

A direct flight takes about 5h 17m. Washington and Las Vegas are around 3,350 km apart.

Which airlines fly from Washington to Las Vegas?

Recent fares on this route were with Frontier Airlines, Alaska Airlines and Southwest Airlines.

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