Cheap flights from Washington to Las Vegas from $108 DCA, IAD → LAS

Found recently, and the cheapest we hold

It is also the cheapest return we hold, of any age.

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest return we saw each day was $153 to $388.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

We hold no other 3-night return fares leaving within 3 days of 18 Nov to compare.

Every date we hold

257 fares on 9 departure dates

Which month looks cheapest?

November 2026 is the cheapest month — from $258.

Found recently, and the cheapest we hold

It is also the cheapest one-way we hold, of any age.

What have prices looked like?

Over 49 days, 24 Sept to 11 Nov, the cheapest one-way we saw each day was $54 to $255.

Those were the prices on those days, not today's.

Could nearby dates be cheaper?

We hold no other one-way fares leaving within 3 days of 20 Jan 2027 to compare.

Every date we hold

5 fares on 3 departure dates

Which month looks cheapest?

January 2027 is the cheapest month — from $108.

Return

Fares 14 to 29 days before departure were typically 31% lower than 0 to 6 days before departure.

From the cheapest return each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

One-way

The cheapest fares were 14 to 29 days before departure.

From the cheapest one-way each day between 24 Sept and 11 Nov (49 days), grouped by how many days ahead the flight left; one adult in economy.

Each range covers different departure dates, so this compares typical fares, not the same trip priced twice.

Prices reflect recent searches — current fares may differ.

How much is a return flight from Washington to Las Vegas?

The cheapest return found recently is $258 with American Airlines, 18 Nov to 21 Nov, found 2 days ago. The cheapest return fare on each of 9 departure dates is usually $370 to $470.

How much is a one-way flight from Washington to Las Vegas?

The cheapest one-way found recently is $108 with Frontier Airlines, 20 Jan 2027, found 4 days ago. The cheapest one-way fare on each of 3 departure dates is usually $118 to $180.

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

November 2026 is the cheapest month for a return, from $258, 18 Nov to 21 Nov, found 2 days ago. January 2027 is the cheapest month for a one-way, from $108, 20 Jan 2027, found 4 days ago.

How far ahead should I book a flight from Washington to Las Vegas?

In 49 days of prices between 24 Sept and 11 Nov, return fares 14 to 29 days before departure were typically 31% lower than 0 to 6 days before departure. One-way fares were cheapest 14 to 29 days before departure.

Is there a direct flight from Washington to Las Vegas?

Yes, the cheapest nonstop return found recently is $258 with American Airlines, 18 Nov to 21 Nov, found 2 days ago.

Every nonstop date from Washington to Las Vegas

How long is the flight from Washington to Las Vegas?

The cheapest one-way found recently, with Frontier Airlines on 20 Jan 2027, takes 18 h 38 min with 1 stop.

Which airlines have the cheapest flights from Washington to Las Vegas?

Between 18 Nov and 4 May 2027, Frontier Airlines has the cheapest return on 6 of the 9 departure dates we hold, American Airlines on 1 and Breeze Airways on 1. Between 31 Dec and 26 Apr 2027, Frontier Airlines has the cheapest one-way on 2 of the 3 departure dates we hold, and Alaska Airlines on 1.