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Cheap flights from Washington, D.C. to Las Vegas from $143

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Las Vegas departing on 13/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. to Las Vegas

Cheap return flights

These are some of the best return flight deals from Washington, D.C. to Las Vegas that have been recently found on momondo from popular airlines, departing in the coming months.
17:55 - 20:14IAD-LAS
5h 19mdirect
07:00 - 14:33LAS-IAD
4h 33mdirect
$454United Airlines
Find Deal
Wed, 2 Apr - Wed, 9 Apr
12:35 - 18:29IAD-LAS
8h 54m1 stop
23:55 - 07:20LAS-IAD
4h 25mdirect
$464United Airlines
Find Deal
Wed, 2 Apr - Wed, 9 Apr
17:55 - 20:14IAD-LAS
5h 19mdirect
06:00 - 16:13LAS-IAD
7h 13m1 stop
$470United Airlines
Find Deal
Tue, 8 Apr - Sat, 12 Apr
17:30 - 22:51IAD-LAS
8h 21m1 stop
06:15 - 17:22LAS-IAD
8h 07m1 stop
$484Alaska Airlines
Find Deal
Wed, 9 Apr - Tue, 15 Apr
07:43 - 14:07IAD-LAS
9h 24m1 stop
00:55 - 12:53LAS-IAD
8h 58m1 stop
$486Delta
Find Deal
Tue, 8 Apr - Fri, 11 Apr
07:50 - 17:05IAD-LAS
12h 15m2 stops
07:10 - 16:50LAS-IAD
6h 40m1 stop
$494Southwest
Find Deal
Tue, 29 Apr - Fri, 2 May
18:48 - 16:55IAD-LAS
25h 07m1 stop
17:35 - 05:34LAS-IAD
8h 59m1 stop
$495Alaska Airlines
Find Deal
Mon, 17 Mar - Thu, 20 Mar
12:15 - 00:18IAD-LAS
15h 03m1 stop
00:55 - 12:55LAS-IAD
9h 00m1 stop
$500Delta
Find Deal
Wed, 19 Mar - Mon, 24 Mar
17:30 - 22:51IAD-LAS
8h 21m1 stop
06:00 - 17:59LAS-IAD
8h 59m1 stop
$524Hawaiian Airlines
Find Deal
Sun, 23 Mar - Thu, 27 Mar
14:10 - 20:05IAD-LAS
8h 55m2 stops
11:15 - 22:40LAS-IAD
8h 25m1 stop
$541Southwest
Find Deal
Mon, 21 Apr - Thu, 24 Apr

United Airlines flights from Washington, D.C. to Las Vegas

Our best United Airlines deals on Washington, D.C. to Las Vegas flight tickets
United Airlines
2 Apr
IAD17:55Washington, D.C. Dulles Intl
5h 19m
LAS20:14Las Vegas Harry Reid Intl
9 Apr
LAS07:00Las Vegas Harry Reid Intl
4h 33m
IAD14:33Washington, D.C. Dulles Intl
United Airlines
2 Apr
IAD12:35Washington, D.C. Dulles Intl
8h 54m
1 stop
LAS18:29Las Vegas Harry Reid Intl
9 Apr
LAS23:55Las Vegas Harry Reid Intl
4h 25m
IAD07:20Washington, D.C. Dulles Intl
United Airlines
8 Apr
IAD17:55Washington, D.C. Dulles Intl
5h 19m
LAS20:14Las Vegas Harry Reid Intl
12 Apr
LAS06:00Las Vegas Harry Reid Intl
7h 13m
1 stop
IAD16:13Washington, D.C. Dulles Intl

Alaska Airlines flights from Washington, D.C. to Las Vegas

Our best Alaska Airlines deals on Washington, D.C. to Las Vegas flight tickets
Alaska Airlines
9 Apr
IAD17:30Washington, D.C. Dulles Intl
8h 21m
1 stop
LAS22:51Las Vegas Harry Reid Intl
15 Apr
LAS06:15Las Vegas Harry Reid Intl
8h 07m
1 stop
IAD17:22Washington, D.C. Dulles Intl
Alaska Airlines
17 Mar
IAD18:48Washington, D.C. Dulles Intl
25h 07m
1 stop
LAS16:55Las Vegas Harry Reid Intl
20 Mar
LAS17:35Las Vegas Harry Reid Intl
8h 59m
1 stop
IAD05:34Washington, D.C. Dulles Intl
Alaska Airlines
3 Apr
IAD07:31Washington, D.C. Dulles Intl
10h 46m
1 stop
LAS15:17Las Vegas Harry Reid Intl
9 Apr
LAS06:00Las Vegas Harry Reid Intl
20h 34m
2 stops
IAD05:34Washington, D.C. Dulles Intl

See travel insights to Las Vegas from

How to get the cheapest flight ticket from Washington, D.C. to Las Vegas

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Las Vegas?

The cheapest month to fly to Las Vegas from Washington, D.C. is in September. Flight prices, which tend to average around $569, are often lower during this time because this is during the off-season. If you aren’t able to travel to Las Vegas during the month of September, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $575.

What is the cheapest day to depart on your flight to Las Vegas?

On average, the least expensive day to fly to Las Vegas from Washington, D.C. is on a Monday. momondo users have found tickets for Monday departures for as low as $0. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Las Vegas is Sunday, with ticket prices averaging around $910.

What is the cheapest time of day to depart on your flight to Las Vegas?

In the morning is the cheapest time of day to fly from Washington, D.C. to Las Vegas when you can find flight prices for as low as $0. Flying to Las Vegas in the morning is an ideal time because this is during off-peak travel hours. Flights in the afternoon are often more expensive, with an average ticket price of $733.

What is the cheapest Washington, D.C. to Las Vegas Harry Reid Intl flight route?

Fly from Baltimore/Washington to Las Vegas Harry Reid Intl for the best Washington, D.C. - Las Vegas Harry Reid Intl flight prices

How far in advance should I book a flight to Las Vegas?

You are more likely to see cheaper flights to Las Vegas from Washington, D.C. when booking 4 weeks ahead of your departure date. In general, you can expect to find flights to Las Vegas for around $766 when searching 4 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Las Vegas from Washington, D.C. for as low as $671 on momondo.

What cabin class options are available on Washington, D.C. to Las Vegas Harry Reid Intl flights?

There are 1 cabin classes available to choose from on Washington, D.C. to Las Vegas Harry Reid Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Washington, D.C. to Las Vegas flight prices changed over time?

As of February 2025, prices for Washington, D.C. to Las Vegas flights are approximately 50% more expensive when compared to flights at the same time last year.

When to book flights from Washington, D.C. to Las Vegas

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to Las Vegas according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Washington, D.C. to Las Vegas (WAS to LAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Las Vegas

Best price found

$143

Fastest flight time

4h 59m

Direct flights

Every day

Airports in Las Vegas

1 airport
The best one-way flight to Las Vegas from Washington, D.C. in the past 72 hours is $143. The best return flight deal from Washington, D.C. to Las Vegas found on momondo in the last 72 hours is $454.
The fastest flight from Washington, D.C. to Las Vegas takes 4h 59m
Direct flights go from Washington, D.C. to Las Vegas every day.
There is 1 airport near Las Vegas: Las Vegas Harry Reid Intl (LAS)

  • How far is Washington, D.C. to Las Vegas Harry Reid Intl by plane?

    Las Vegas Harry Reid Intl is 3346.4 km away from Washington, D.C.. 5h 04m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Washington, D.C. to Las Vegas Harry Reid Intl Airport?

    Prices for flights from Washington, D.C. to Las Vegas Harry Reid Intl Airport were last updated today.

  • How old do you have to be to fly from Washington, D.C. to Las Vegas Harry Reid Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. to Las Vegas Harry Reid Intl Airport.

  • What documentation or ID do you need to fly to Las Vegas Harry Reid Intl Airport?

    The travel and health documents you'll need for your trip to Las Vegas Harry Reid Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Las Vegas Harry Reid Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Washington, D.C. to Las Vegas?


Travelling to a place near Las Vegas?

Book flights to Las Vegas if you plan to visit one of these locations
Furnace Creek

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Las Vegas?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to Las Vegas for you.

Can I find flights from Washington, D.C. to Las Vegas with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Washington, D.C. to Las Vegas flights to just show those with flexible booking policies.

How can momondo help me find flights from Washington, D.C. to Las Vegas?

momondo helps you find the best flight between Washington, D.C. and Las Vegas by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Washington, D.C. to Las Vegas right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Las Vegas from Washington, D.C.. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.


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Airports servicing Nevada