Cheap flights from Washington, D.C. Reagan-National Airport to Las Vegas from $115

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. Reagan-National Airport to Las Vegas departing on 1/12. 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. Reagan-National Airport to Las Vegas

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
2:00 pm - 10:53 pm
DCA
-
LAS
11h 53m1 stop
Frontier Logo
11:00 am - 9:59 pm
LAS
-
DCA
7h 59m1 stop
$228Frontier
Tue, Jan 6 - Thu, Jan 8
Frontier Logo
8:00 am - 11:07 am
DCA
-
LAS
30h 07m1 stop
Frontier Logo
8:25 pm - 1:02 pm
LAS
-
DCA
13h 37m1 stop
$229Frontier
Fri, Jan 2 - Mon, Jan 5
Multiple Airlines Logo
6:00 pm - 11:39 pm
DCA
-
LAS
8h 39m1 stop
Multiple Airlines Logo
1:53 pm - 1:02 pm
LAS
-
DCA
44h 09m2 stops
$230Multiple Airlines
Thu, Jan 15 - Mon, Jan 19
Frontier Logo
2:00 pm - 10:29 pm
DCA
-
LAS
11h 29m2 stops
Frontier Logo
11:13 am - 9:59 pm
LAS
-
DCA
7h 46m1 stop
$232Frontier
Sun, Jan 18 - Tue, Jan 27
Frontier Logo
6:00 pm - 11:39 pm
DCA
-
LAS
8h 39m1 stop
Frontier Logo
6:00 am - 4:59 pm
LAS
-
DCA
7h 59m1 stop
$233Frontier
Thu, Jan 29 - Mon, Feb 2
Frontier Logo
8:00 am - 5:13 pm
DCA
-
LAS
12h 13m1 stop
Frontier Logo
6:00 am - 4:59 pm
LAS
-
DCA
7h 59m1 stop
$234Frontier
Sat, Feb 28 - Fri, Mar 6
Frontier Logo
6:00 pm - 11:39 pm
DCA
-
LAS
8h 39m1 stop
Frontier Logo
4:35 pm - 1:02 pm
LAS
-
DCA
41h 27m2 stops
$235Frontier
Thu, Jan 15 - Mon, Jan 19
Frontier Logo
2:00 pm - 10:36 pm
DCA
-
LAS
11h 36m1 stop
Frontier Logo
6:00 am - 9:59 pm
LAS
-
DCA
12h 59m1 stop
$236Frontier
Sat, Jan 17 - Fri, Jan 23
Frontier Logo
2:00 pm - 11:39 pm
DCA
-
LAS
12h 39m1 stop
Frontier Logo
6:00 am - 4:59 pm
LAS
-
DCA
7h 59m1 stop
$237Frontier
Fri, Jan 23 - Mon, Feb 2
Frontier Logo
6:00 pm - 10:53 pm
DCA
-
LAS
7h 53m1 stop
Frontier Logo
6:00 am - 4:59 pm
LAS
-
DCA
7h 59m1 stop
$238Frontier
Wed, Jan 7 - Sun, Jan 11

JetBlue flights from Washington, D.C. Reagan-National Airport to Las Vegas

Our best JetBlue deals on Washington, D.C. Reagan-National Airport to Las Vegas flight tickets
JetBlue
Jan 17
DCA3:25 pmWashington, D.C. Reagan-National
11h 34m
1 stop
LAS11:59 pmLas Vegas Harry Reid Intl
Jan 19
LAS11:39 pmLas Vegas Harry Reid Intl
8h 30m
1 stop
DCA11:09 amWashington, D.C. Reagan-National
JetBlue
Jan 23
DCA5:20 pmWashington, D.C. Reagan-National
9h 39m
1 stop
LAS11:59 pmLas Vegas Harry Reid Intl
Jan 25
LAS11:39 pmLas Vegas Harry Reid Intl
10h 41m
1 stop
DCA1:20 pmWashington, D.C. Reagan-National

Frontier flights from Washington, D.C. Reagan-National Airport to Las Vegas

Our best Frontier deals on Washington, D.C. Reagan-National Airport to Las Vegas flight tickets
Frontier
Jan 6
DCA2:00 pmWashington, D.C. Reagan-National
11h 53m
1 stop
LAS10:53 pmLas Vegas Harry Reid Intl
Jan 8
LAS11:00 amLas Vegas Harry Reid Intl
7h 59m
1 stop
DCA9:59 pmWashington, D.C. Reagan-National
Frontier
Jan 2
DCA8:00 amWashington, D.C. Reagan-National
30h 07m
1 stop
LAS11:07 amLas Vegas Harry Reid Intl
Jan 5
LAS8:25 pmLas Vegas Harry Reid Intl
13h 37m
1 stop
DCA1:02 pmWashington, D.C. Reagan-National
Frontier
Jan 18
DCA2:00 pmWashington, D.C. Reagan-National
11h 29m
2 stops
LAS10:29 pmLas Vegas Harry Reid Intl
Jan 27
LAS11:13 amLas Vegas Harry Reid Intl
7h 46m
1 stop
DCA9:59 pmWashington, D.C. Reagan-National

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Reagan-National Airport 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 December 23, 2025.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Las Vegas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Tue 1/6

2:00 pm-10:53 pm

1 stop11h 53m

Las Vegas Harry Reid Intl

Thu 1/8

11:00 am-9:59 pm

1 stop7h 59m

$228

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Fri 1/2

8:00 am-11:07 am

1 stop30h 07m

Las Vegas Harry Reid Intl

Mon 1/5

8:25 pm-1:02 pm

1 stop13h 37m

$229

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Thu 1/15

6:00 pm-11:39 pm

1 stop8h 39m

Las Vegas Harry Reid Intl

Mon 1/19

1:53 pm-1:02 pm

2 stops44h 09m

$230

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Sun 1/18

2:00 pm-10:29 pm

2 stops11h 29m

Las Vegas Harry Reid Intl

Tue 1/27

11:13 am-9:59 pm

1 stop7h 46m

$232

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

Mon 2/2

6:00 am-4:59 pm

1 stop7h 59m

$233

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Sat 2/28

8:00 am-5:13 pm

1 stop12h 13m

Las Vegas Harry Reid Intl

Fri 3/6

6:00 am-4:59 pm

1 stop7h 59m

$234

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Thu 1/15

6:00 pm-11:39 pm

1 stop8h 39m

Las Vegas Harry Reid Intl

Mon 1/19

4:35 pm-1:02 pm

2 stops41h 27m

$235

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Sat 1/17

2:00 pm-10:36 pm

1 stop11h 36m

Las Vegas Harry Reid Intl

Fri 1/23

6:00 am-9:59 pm

1 stop12h 59m

$236

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Fri 1/23

2:00 pm-11:39 pm

1 stop12h 39m

Las Vegas Harry Reid Intl

Mon 2/2

6:00 am-4:59 pm

1 stop7h 59m

$237

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Wed 1/7

6:00 pm-10:53 pm

1 stop7h 53m

Las Vegas Harry Reid Intl

Sun 1/11

6:00 am-4:59 pm

1 stop7h 59m

$238

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. Reagan-National Airport 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 month of August is, on average, the cheapest month to fly to Las Vegas from Washington, D.C. Reagan-National Airport, with most prices found around $341. The month of February is another great option to travel to Las Vegas, with average flight prices from Washington, D.C. Reagan-National Airport averaging around $369.

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. Reagan-National Airport to Las Vegas on a Thursday will generally be more expensive and average around $425. 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 $445. 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. Reagan-National 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. Reagan-National - 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. Reagan-National Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Las Vegas for around $408 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. Reagan-National Airport for as low as $330 on momondo.

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

There are 3 cabin classes available to choose from on Washington, D.C. Reagan-National 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. Reagan-National Airport to Las Vegas flights?

You could potentially save up to 22% on your flight if you consider stops on a Washington, D.C. Reagan-National Airport to Las Vegas flight.

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

As of December 2025, prices for Washington, D.C. Reagan-National Airport to Las Vegas flights are approximately 13% more expensive when compared to flights at the same time last year.

When to book flights from Washington, D.C. Reagan-National Airport to Las Vegas

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Reagan-National Airport 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. Reagan-National Airport to Las Vegas (DCA to LAS) flight deals and tips

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

Best Price Found

$205

Fastest flight time

5h 05m

Direct flights

Every day

Airports in Las Vegas

1 airport
The best one-way flight to Las Vegas from Washington, D.C. Reagan-National Airport in the past 72 hours is $205. The best round-trip flight deal from Washington, D.C. Reagan-National Airport to Las Vegas found on momondo in the last 72 hours is $431.
The fastest flight from Washington, D.C. Reagan-National Airport to Las Vegas takes 5h 05m
Direct flights go from Washington, D.C. Reagan-National Airport to Las Vegas every day.
There is 1 airport in Las Vegas. From Washington, D.C. Reagan-National Airport there are direct flights to Las Vegas Harry Reid Intl (LAS).
  • How far is Washington, D.C. Reagan-National to Las Vegas Harry Reid Intl by plane?

    A flight from Washington, D.C. Reagan-National to Las Vegas Harry Reid Intl will travel around 2079.7 mi. A reasonable flight in good conditions will take 5h 05m.

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

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

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Reagan-National Airport 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 required for your trip to Las Vegas Harry Reid Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Las Vegas Harry Reid Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

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

Best airlines flying from Washington, D.C. Reagan-National Airport to Las Vegas

Compare and see reviews for airlines that fly from Washington, D.C. Reagan-National Airport to Las Vegas with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $119Free CancellationRating
6.3
8,196 reviews
Search Spirit Airlines flights
FrontierPriceFrom $132Free CancellationRating
5.8
3,075 reviews
Search Frontier flights
Alaska AirlinesPriceFrom $188Free CancellationRating
8.0
11,510 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $237Free CancellationRating
7.4
9,105 reviews
Search United Airlines flights
SouthwestPriceFrom $239Free CancellationRating
8.0
4,253 reviews
Search Southwest flights
American AirlinesPriceFrom $248Free CancellationRating
7.2
11,054 reviews
Search American Airlines flights
JetBluePriceFrom $254Free CancellationRating
7.2
2,897 reviews
Search JetBlue flights
DeltaPriceFrom $256Free CancellationRating
7.9
8,014 reviews
Search Delta flights
  • Southwest Flights From Washington, D.C. Reagan-National Airport to Las Vegas

    Southwest is one of the most popular airlines flying from Washington, D.C. Reagan-National Airport to Las Vegas, operating 10 flights/week on average for this route. A good Southwest flight deal for Washington, D.C. Reagan-National Airport to Las Vegas starts from $239 round-trip, up to an average price of $464. Our users have rated Southwest at 8.0/10.

  • United Airlines Flights From Washington, D.C. Reagan-National Airport to Las Vegas

    United Airlines (7.4/10 from 9,103 reviews) operates around 1 flight from Washington, D.C. Reagan-National Airport to Las Vegas in any given week. The average United Airlines airfare for this route is around $409, with deals from around $237 rare but found on momondo. Referenced prices are for round-trip Washington, D.C. Reagan-National Airport to Las Vegas flight searches in the last 72 hours.

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
Mesquite
Paradise
North Las Vegas
Kingman
Pahrump
Primm
Furnace Creek
Boulder City
Sunrise Manor
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?

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?

Once all potential Washington, D.C. to Las Vegas flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of Washington, D.C. to Las Vegas flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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1 adult
Thu 1/22
Thu 1/29

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