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Cheap flights from Washington, D.C. to Las Vegas from $123

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 4/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

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Cheap return flights

Frontier Logo
07:30 - 09:29IAD-LAS
4h 59mdirect
Frontier Logo
23:00 - 06:34LAS-IAD
4h 34mdirect
$244Frontier
Find Deal
Wed, 23 Jul - Wed, 30 Jul
United Airlines Logo
09:00 - 11:03IAD-LAS
5h 03mdirect
United Airlines Logo
08:30 - 16:09LAS-IAD
4h 39mdirect
$245United Airlines
Find Deal
Sat, 30 Aug - Wed, 3 Sep
 Logo
07:30 - 09:29IAD-LAS
4h 59mdirect
 Logo
08:30 - 19:19LAS-IAD
7h 49m1 stop
Wed, 23 Jul - Wed, 30 Jul
Hawaiian Airlines Logo
17:25 - 22:59IAD-LAS
8h 34m1 stop
Hawaiian Airlines Logo
07:00 - 18:59LAS-IAD
8h 59m1 stop
$308Hawaiian Airlines
Find Deal
Mon, 11 Aug - Wed, 13 Aug
Alaska Airlines Logo
19:59 - 10:32IAD-LAS
17h 33m1 stop
Alaska Airlines Logo
08:30 - 19:19LAS-IAD
7h 49m1 stop
$310Alaska Airlines
Find Deal
Mon, 28 Jul - Thu, 31 Jul
 Logo
07:30 - 09:29IAD-LAS
4h 59mdirect
 Logo
08:30 - 19:19LAS-IAD
7h 49m1 stop
Tue, 29 Jul - Tue, 5 Aug
Alaska Airlines Logo
17:51 - 23:31IAD-LAS
8h 40m1 stop
Alaska Airlines Logo
06:00 - 17:06LAS-IAD
8h 06m1 stop
$333Alaska Airlines
Find Deal
Mon, 10 Nov - Fri, 14 Nov
Hawaiian Airlines Logo
17:51 - 23:31IAD-LAS
8h 40m1 stop
Hawaiian Airlines Logo
07:25 - 17:06LAS-IAD
6h 41m1 stop
$364Hawaiian Airlines
Find Deal
Mon, 3 Nov - Sat, 8 Nov
Southwest Logo
16:30 - 23:15IAD-LAS
9h 45m1 stop
Southwest Logo
10:05 - 21:25LAS-IAD
8h 20m1 stop
$390Southwest
Find Deal
Thu, 28 Aug - Sun, 31 Aug
Southwest Logo
05:45 - 09:20IAD-LAS
6h 35m1 stop
Southwest Logo
05:40 - 16:20LAS-IAD
7h 40m1 stop
$393Southwest
Find Deal
Wed, 17 Sep - Sat, 20 Sep

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
30 Aug
IAD09:00Washington, D.C. Dulles Intl
5h 03m
LAS11:03Las Vegas Harry Reid Intl
3 Sept
LAS08:30Las Vegas Harry Reid Intl
4h 39m
IAD16:09Washington, D.C. Dulles Intl
United Airlines
12 July
IAD22:10Washington, D.C. Dulles Intl
5h 04m
LAS00:14Las Vegas Harry Reid Intl
19 July
LAS23:59Las Vegas Harry Reid Intl
4h 35m
IAD07:34Washington, D.C. Dulles Intl
United Airlines
6 Oct
IAD08:45Washington, D.C. Dulles Intl
4h 53m
LAS10:38Las Vegas Harry Reid Intl
11 Oct
LAS13:11Las Vegas Harry Reid Intl
4h 29m
IAD20:40Washington, D.C. Dulles Intl

Frontier flights from Washington, D.C. to Las Vegas

Our best Frontier deals on Washington, D.C. to Las Vegas flight tickets
Frontier
23 July
IAD07:30Washington, D.C. Dulles Intl
4h 59m
LAS09:29Las Vegas Harry Reid Intl
30 July
LAS23:00Las Vegas Harry Reid Intl
4h 34m
IAD06:34Washington, D.C. Dulles Intl
Frontier
28 July
IAD07:30Washington, D.C. Dulles Intl
4h 59m
LAS09:29Las Vegas Harry Reid Intl
4 Aug
LAS23:00Las Vegas Harry Reid Intl
4h 34m
IAD06:34Washington, 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 typical price of a round-trip flight between Washington, D.C. and Las Vegas?

What is the cheapest month to fly to Las Vegas?

The cheapest month to fly to Las Vegas from Washington, D.C. is in May. Flight prices, which tend to average around $513, 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 May, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $519.

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

Fly from Washington, D.C. Dulles Intl 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 11 weeks ahead of your departure date. In general, you can expect to find flights to Las Vegas for around $669 when searching 11 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 $595 on momondo.

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

There are 2 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 June 2025, prices for Washington, D.C. to Las Vegas flights are approximately 14% 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

$123

Fastest flight time

4h 51m

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 $123. The best return flight deal from Washington, D.C. to Las Vegas found on momondo in the last 72 hours is $244.
The fastest flight from Washington, D.C. to Las Vegas takes 4h 51m
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.. 4h 51m 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
Primm

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