Cheap flights from Washington, D.C. to Las Vegas from $185

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 11/11. 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

Enter your travel dates to find the best prices.
United Airlines Logo
12:47 - 15:10IAD-LAS
5h 23mdirect
United Airlines Logo
23:50 - 07:09LAS-IAD
4h 19mdirect
$369United Airlines
Find Deal
Tue, 11 Nov - Tue, 11 Nov
United Airlines Logo
19:41 - 22:00IAD-LAS
5h 19mdirect
United Airlines Logo
19:04 - 06:48LAS-IAD
8h 44m1 stop
$378United Airlines
Find Deal
Fri, 14 Nov - Mon, 17 Nov
United Airlines Logo
19:41 - 22:00IAD-LAS
5h 19mdirect
United Airlines Logo
12:23 - 22:12LAS-IAD
6h 49m1 stop
$384United Airlines
Find Deal
Tue, 11 Nov - Thu, 13 Nov
United Airlines Logo
19:44 - 22:03IAD-LAS
5h 19mdirect
United Airlines Logo
23:50 - 07:09LAS-IAD
4h 19mdirect
$392United Airlines
Find Deal
Sat, 8 Nov - Tue, 18 Nov
Alaska Airlines Logo
17:37 - 22:27IAD-LAS
7h 50m1 stop
Alaska Airlines Logo
07:25 - 17:30LAS-IAD
7h 05m1 stop
$398Alaska Airlines
Find Deal
Sat, 6 Dec - Wed, 10 Dec
Alaska Airlines Logo
17:40 - 23:33IAD-LAS
8h 53m1 stop
Alaska Airlines Logo
19:47 - 17:13LAS-IAD
18h 26m1 stop
$421Alaska Airlines
Find Deal
Fri, 14 Nov - Mon, 17 Nov
Delta Logo
12:09 - 19:32IAD-LAS
10h 23m1 stop
Delta Logo
09:52 - 19:27LAS-IAD
6h 35m1 stop
$423Delta
Find Deal
Sat, 8 Nov - Sat, 15 Nov
Delta Logo
17:52 - 22:29IAD-LAS
7h 37m1 stop
Delta Logo
23:54 - 11:32LAS-IAD
8h 38m1 stop
$446Delta
Find Deal
Sat, 1 Nov - Tue, 4 Nov
Southwest Logo
09:05 - 16:35IAD-LAS
10h 30m2 stops
Southwest Logo
10:00 - 22:40LAS-IAD
9h 40m1 stop
$478Southwest
Find Deal
Tue, 3 Feb - Thu, 5 Feb
Southwest Logo
15:55 - 22:55IAD-LAS
10h 00m2 stops
Southwest Logo
06:20 - 17:05LAS-IAD
7h 45m1 stop
$492Southwest
Find Deal
Sat, 8 Nov - Wed, 12 Nov

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
11 Nov
IAD12:47Washington, D.C. Dulles Intl
5h 23m
LAS15:10Las Vegas Harry Reid Intl
11 Nov
LAS23:50Las Vegas Harry Reid Intl
4h 19m
IAD07:09Washington, D.C. Dulles Intl
United Airlines
14 Nov
IAD19:41Washington, D.C. Dulles Intl
5h 19m
LAS22:00Las Vegas Harry Reid Intl
17 Nov
LAS19:04Las Vegas Harry Reid Intl
8h 44m
1 stop
IAD06:48Washington, D.C. Dulles Intl
United Airlines
11 Nov
IAD19:41Washington, D.C. Dulles Intl
5h 19m
LAS22:00Las Vegas Harry Reid Intl
13 Nov
LAS12:23Las Vegas Harry Reid Intl
6h 49m
1 stop
IAD22:12Washington, 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
6 Dec
IAD17:37Washington, D.C. Dulles Intl
7h 50m
1 stop
LAS22:27Las Vegas Harry Reid Intl
10 Dec
LAS07:25Las Vegas Harry Reid Intl
7h 05m
1 stop
IAD17:30Washington, D.C. Dulles Intl
Alaska Airlines
14 Nov
IAD17:40Washington, D.C. Dulles Intl
8h 53m
1 stop
LAS23:33Las Vegas Harry Reid Intl
17 Nov
LAS19:47Las Vegas Harry Reid Intl
18h 26m
1 stop
IAD17:13Washington, D.C. Dulles Intl
Alaska Airlines
24 Nov
IAD07:38Washington, D.C. Dulles Intl
10h 41m
1 stop
LAS15:19Las Vegas Harry Reid Intl
3 Dec
LAS07:25Las Vegas Harry Reid Intl
7h 05m
1 stop
IAD17:30Washington, D.C. Dulles Intl

momondo Fare Finder

 
Customise your flight search to find flights from Washington, D.C. to Las Vegas that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 78,305 searches. Data last updated 12 October 2025.
Use the filters below to find and compare flights from Washington, D.C. to Las Vegas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Tue 11/11

12:47-15:10

Nonstop5h 23m

Las Vegas Harry Reid Intl

Tue 11/11

23:50-07:09

Nonstop4h 19m

$369

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Fri 14/11

19:41-22:00

Nonstop5h 19m

Las Vegas Harry Reid Intl

Mon 17/11

19:04-06:48

1 stop8h 44m

$378

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Tue 11/11

19:41-22:00

Nonstop5h 19m

Las Vegas Harry Reid Intl

Thu 13/11

12:23-22:12

1 stop6h 49m

$384

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sat 8/11

19:44-22:03

Nonstop5h 19m

Las Vegas Harry Reid Intl

Tue 18/11

23:50-07:09

Nonstop4h 19m

$392

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sat 6/12

17:37-22:27

1 stop7h 50m

Las Vegas Harry Reid Intl

Wed 10/12

07:25-17:30

1 stop7h 05m

$398

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Fri 14/11

17:40-23:33

1 stop8h 53m

Las Vegas Harry Reid Intl

Mon 17/11

19:47-17:13

1 stop18h 26m

$421

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sat 8/11

12:09-19:32

1 stop10h 23m

Las Vegas Harry Reid Intl

Sat 15/11

09:52-19:27

1 stop6h 35m

$423

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sat 1/11

17:52-22:29

1 stop7h 37m

Las Vegas Harry Reid Intl

Tue 4/11

23:54-11:32

1 stop8h 38m

$446

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Tue 3/2

09:05-16:35

2 stops10h 30m

Las Vegas Harry Reid Intl

Thu 5/2

10:00-22:40

1 stop9h 40m

$478

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sat 8/11

15:55-22:55

2 stops10h 00m

Las Vegas Harry Reid Intl

Wed 12/11

06:20-17:05

1 stop7h 45m

$492

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 August. Flight prices, which tend to average around $415, 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 August, then flying in July is also cheap. Prices for this month can be found on momondo for an average of $429.

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 weeks ahead of your departure date. In general, you can expect to find flights to Las Vegas for around $617 when searching weeks before you fly. 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 $492 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 October 2025, prices for Washington, D.C. to Las Vegas flights are approximately 6% 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

$257

Fastest flight time

5h 00m

Direct flights

Every day

Airports in Las Vegas

1 airport
The best flight deal from Washington, D.C. to Las Vegas found on momondo in the last 72 hours is $257
The fastest flight from Washington, D.C. to Las Vegas takes 5h 00m
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 19m 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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1 adult
Tue 11/11
Tue 18/11

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