Cheap flights from Washington, D.C. to Las Vegas from $73

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 3/3. 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 round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
10:50 am - 5:55 pm
IAD
-
LAS
10h 05m1 stop
Multiple Airlines Logo
1:53 pm - 9:55 am
LAS
-
IAD
17h 02m2 stops
$238Multiple Airlines
Mon, Jan 26 - Thu, Jan 29
Frontier Logo
2:00 pm - 7:21 pm
DCA
-
LAS
8h 21m1 stop
Frontier Logo
6:00 am - 4:59 pm
LAS
-
DCA
7h 59m1 stop
$238Frontier
Sun, Jan 18 - Thu, Jan 22
Frontier Logo
6:00 pm - 11:39 pm
DCA
-
LAS
8h 39m1 stop
Frontier Logo
6:24 pm - 4:59 pm
LAS
-
DCA
19h 35m2 stops
$239Frontier
Thu, Jan 29 - Sun, Feb 1
Multiple Airlines Logo
8:00 am - 6:58 pm
IAD
-
LAS
13h 58m2 stops
Multiple Airlines Logo
7:00 am - 9:55 am
LAS
-
IAD
23h 55m1 stop
$239Multiple Airlines
Tue, Feb 3 - Thu, Feb 5
Frontier Logo
11:22 am - 7:33 pm
IAD
-
LAS
11h 11m2 stops
Frontier Logo
12:59 am - 9:25 am
LAS
-
IAD
29h 26m1 stop
$240Frontier
Thu, Feb 19 - Sat, Feb 21
Multiple Airlines Logo
6:00 pm - 10:57 pm
DCA
-
LAS
7h 57m1 stop
Multiple Airlines Logo
1:53 pm - 4:59 pm
LAS
-
DCA
24h 06m2 stops
$240Multiple Airlines
Tue, Jan 20 - Wed, Jan 21
Frontier Logo
2:00 pm - 6:20 pm
DCA
-
LAS
7h 20m1 stop
Frontier Logo
8:10 pm - 1:02 pm
LAS
-
DCA
37h 52m2 stops
$241Frontier
Wed, Jan 21 - Sat, Jan 24
Frontier Logo
2:00 pm - 6:20 pm
DCA
-
LAS
7h 20m1 stop
Frontier Logo
2:54 pm - 1:02 pm
LAS
-
DCA
19h 08m2 stops
$242Frontier
Wed, Jan 21 - Thu, Jan 22
Spirit Airlines Logo
4:44 pm - 10:31 am
BWI
-
LAS
20h 47m3 stops
Spirit Airlines Logo
7:07 am - 10:27 am
LAS
-
BWI
24h 20m2 stops
$246Spirit Airlines
Mon, Feb 2 - Mon, Feb 9
Spirit Airlines Logo
1:00 pm - 11:44 pm
BWI
-
LAS
13h 44m1 stop
Spirit Airlines Logo
1:01 am - 10:27 am
LAS
-
BWI
6h 26m1 stop
$253Spirit Airlines
Sat, Jan 24 - Sat, Jan 24

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

Our best Frontier deals on Washington, D.C. to Las Vegas flight tickets
Frontier
Jan 18
DCA2:00 pmWashington, D.C. Reagan-National
8h 21m
1 stop
LAS7:21 pmLas Vegas Harry Reid Intl
Jan 22
LAS6:00 amLas Vegas Harry Reid Intl
7h 59m
1 stop
DCA4:59 pmWashington, D.C. Reagan-National
Frontier
Jan 29
DCA6:00 pmWashington, D.C. Reagan-National
8h 39m
1 stop
LAS11:39 pmLas Vegas Harry Reid Intl
Feb 1
LAS6:24 pmLas Vegas Harry Reid Intl
19h 35m
2 stops
DCA4:59 pmWashington, D.C. Reagan-National
Frontier
Feb 19
IAD11:22 amWashington, D.C. Dulles Intl
11h 11m
2 stops
LAS7:33 pmLas Vegas Harry Reid Intl
Feb 21
LAS12:59 amLas Vegas Harry Reid Intl
29h 26m
1 stop
IAD9:25 amWashington, D.C. Dulles Intl

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

Our best JetBlue deals on Washington, D.C. to Las Vegas flight tickets
JetBlue
Jan 30
DCA5:20 pmWashington, D.C. Reagan-National
9h 39m
1 stop
LAS11:59 pmLas Vegas Harry Reid Intl
Feb 1
LAS11:39 pmLas Vegas Harry Reid Intl
10h 41m
1 stop
DCA1:20 pmWashington, D.C. Reagan-National
JetBlue
Mar 27
DCA5:15 pmWashington, D.C. Reagan-National
8h 33m
1 stop
LAS10:48 pmLas Vegas Harry Reid Intl
Apr 6
LAS10:25 pmLas Vegas Harry Reid Intl
10h 34m
1 stop
DCA11:59 amWashington, D.C. Reagan-National

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated January 6, 2026.
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

Mon 1/26

10:50 am-5:55 pm

1 stop10h 05m

Las Vegas Harry Reid Intl

Thu 1/29

1:53 pm-9:55 am

2 stops17h 02m

$238

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Sun 1/18

2:00 pm-7:21 pm

1 stop8h 21m

Las Vegas Harry Reid Intl

Thu 1/22

6:00 am-4:59 pm

1 stop7h 59m

$238

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Thu 1/29

6:00 pm-11:39 pm

1 stop8h 39m

Las Vegas Harry Reid Intl

Sun 2/1

6:24 pm-4:59 pm

2 stops19h 35m

$239

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Tue 2/3

8:00 am-6:58 pm

2 stops13h 58m

Las Vegas Harry Reid Intl

Thu 2/5

7:00 am-9:55 am

1 stop23h 55m

$239

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Thu 2/19

11:22 am-7:33 pm

2 stops11h 11m

Las Vegas Harry Reid Intl

Sat 2/21

12:59 am-9:25 am

1 stop29h 26m

$240

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Tue 1/20

6:00 pm-10:57 pm

1 stop7h 57m

Las Vegas Harry Reid Intl

Wed 1/21

1:53 pm-4:59 pm

2 stops24h 06m

$240

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Wed 1/21

2:00 pm-6:20 pm

1 stop7h 20m

Las Vegas Harry Reid Intl

Sat 1/24

8:10 pm-1:02 pm

2 stops37h 52m

$241

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Wed 1/21

2:00 pm-6:20 pm

1 stop7h 20m

Las Vegas Harry Reid Intl

Thu 1/22

2:54 pm-1:02 pm

2 stops19h 08m

$242

BaltimoreLas Vegas

BWI - LAS

BWILAS

Baltimore/Washington

Mon 2/2

4:44 pm-10:31 am

3 stops20h 47m

Las Vegas Harry Reid Intl

Mon 2/9

7:07 am-10:27 am

2 stops24h 20m

$246

BaltimoreLas Vegas

BWI - LAS

BWILAS

Baltimore/Washington

Sat 1/24

1:00 pm-11:44 pm

1 stop13h 44m

Las Vegas Harry Reid Intl

Sat 1/24

1:01 am-10:27 am

1 stop6h 26m

$253

Flights are sorted by cheapest round-trip 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 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 month of August is, on average, the cheapest month to fly to Las Vegas from Washington, D.C., with most prices found around $269. The month of July is another great option to travel to Las Vegas, with average flight prices from Washington, D.C. averaging around $278.

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

Our data shows that Saturday is the least expensive day to fly to Las Vegas. Tickets to fly out on this day can be as low as $343. Flights from Washington, D.C. to Las Vegas on a Thursday will generally be more expensive and average around $428. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

The cheapest time of day to fly to Las Vegas is in the morning when flights can be purchased for as low as $358. Flights to Las Vegas are more costly in the afternoon, with an average ticket price of $448. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

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

Fly from Washington, D.C. Reagan-National 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 $390 when searching 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 $316 on momondo.

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

There are 4 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.

Can stopping save me money on Washington, D.C. to Las Vegas flights?

You could potentially save up to 21% on your flight if you consider stops on a Washington, D.C. to Las Vegas flight.

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

As of January 2026, prices for Washington, D.C. to Las Vegas flights are approximately 2% 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 round-trip 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

$238

Fastest flight time

5h 00m

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 $238. The best round-trip flight deal from Washington, D.C. to Las Vegas found on momondo in the last 72 hours is $425.
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 in Las Vegas. From Washington, D.C. there are direct flights to Las Vegas Harry Reid Intl (LAS).
  • How far is Washington, D.C. to Las Vegas Harry Reid Intl by plane?

    The straight-line distance from Washington, D.C. to Las Vegas Harry Reid Intl is 2079.4 mi. Typically, this will take 5h 00m by plane in normal conditions.

  • 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 many operators does momondo search for flights from Washington, D.C. to Las Vegas Harry Reid Intl Airport?

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to 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 license 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?

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

Best airlines flying from Washington, D.C. to Las Vegas

Compare and see reviews for airlines that fly from Washington, D.C. to Las Vegas with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $91Free CancellationRating
6.3
8,276 reviews
Search Spirit Airlines flights
FrontierPriceFrom $120Free CancellationRating
5.7
3,064 reviews
Search Frontier flights
DeltaPriceFrom $183Free CancellationRating
7.9
8,017 reviews
Search Delta flights
Sun Country AirPriceFrom $184Free CancellationRating
6.8
340 reviews
Search Sun Country Air flights
Alaska AirlinesPriceFrom $188Free CancellationRating
8.0
11,650 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $222Free CancellationRating
7.2
11,083 reviews
Search American Airlines flights
United AirlinesPriceFrom $233Free CancellationRating
7.4
9,134 reviews
Search United Airlines flights
SouthwestPriceFrom $239Free CancellationRating
8.0
4,247 reviews
Search Southwest flights
JetBluePriceFrom $254Free CancellationRating
7.2
2,897 reviews
Search JetBlue flights
  • Southwest Flights From Washington, D.C. to Las Vegas

    Southwest is one of the most popular airlines flying from Washington, D.C. to Las Vegas, operating 15 flights/week on average for this route. A good Southwest flight deal for Washington, D.C. to Las Vegas starts from $239 round-trip, up to an average price of $469. Our users have rated Southwest at 8.0/10.

  • United Airlines Flights From Washington, D.C. to Las Vegas

    United Airlines is also a popular choice for this route. United Airlines flight deals for Washington, D.C. to Las Vegas start from as low as $233 round-trip, depending on your selected dates, with average United Airlines deals seen on momondo around $443. United Airlines operates 13 flights to Las Vegas from Washington, D.C. in an average week. Users have rated it 7.4/10 across 9,134 reviews.

Traveling to a place near Las Vegas?

Book flights to Las Vegas if you plan to visit one of these locations
Laughlin
Mount Charleston
Henderson
Paradise
Mesquite
North Las Vegas
Kingman
Pahrump
Primm
Furnace Creek
Sunrise Manor
Boulder City
Winchester
Needles

Why use momondo?

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

It is quick and easy to find Washington, D.C. to Las Vegas flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Las Vegas that suits you.

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

momondo does allow users to show only those flights to Las Vegas from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.

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 can track prices for Washington, D.C. to Las Vegas flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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