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Cheap flights from Washington, D.C. Reagan-National Airport to Las Vegas from $102

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 1/28. 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
6:00 pm - 11:29 pmDCA-LAS
8h 29m1 stop
Frontier Logo
6:31 pm - 1:02 pmLAS-DCA
39h 31m2 stops
$184Frontier
Find Deal
Tue, Nov 11 - Fri, Nov 14
Frontier Logo
6:00 pm - 11:29 pmDCA-LAS
8h 29m1 stop
Frontier Logo
12:34 pm - 9:59 pmLAS-DCA
6h 25m1 stop
$185Frontier
Find Deal
Fri, Nov 14 - Wed, Nov 19
Frontier Logo
8:00 am - 7:56 pmDCA-LAS
14h 56m2 stops
Frontier Logo
5:07 pm - 9:59 pmLAS-DCA
25h 52m1 stop
$187Frontier
Find Deal
Sat, Dec 6 - Thu, Dec 11
Multiple Airlines Logo
6:00 pm - 11:42 pmDCA-LAS
8h 42m1 stop
Multiple Airlines Logo
7:51 pm - 4:59 pmLAS-DCA
18h 08m2 stops
$189Multiple Airlines
Find Deal
Fri, Jan 23 - Tue, Jan 27
Frontier Logo
2:00 pm - 7:14 pmDCA-LAS
8h 14m1 stop
Frontier Logo
7:51 pm - 1:05 pmLAS-DCA
14h 14m1 stop
$190Frontier
Find Deal
Tue, Jan 20 - Thu, Jan 29
Frontier Logo
6:00 pm - 11:42 pmDCA-LAS
8h 42m1 stop
Frontier Logo
6:00 am - 1:04 pmLAS-DCA
28h 04m1 stop
$191Frontier
Find Deal
Thu, Jan 8 - Mon, Jan 12
Frontier Logo
2:00 pm - 7:39 amDCA-LAS
20h 39m1 stop
Frontier Logo
6:00 am - 1:01 pmLAS-DCA
28h 01m1 stop
$193Frontier
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Tue, Dec 16 - Fri, Dec 19
JetBlue Logo
5:43 pm - 10:49 pmDCA-LAS
8h 06m1 stop
JetBlue Logo
9:53 am - 10:59 pmLAS-DCA
10h 06m1 stop
$198JetBlue
Find Deal
Mon, Nov 24 - Tue, Dec 9
JetBlue Logo
6:00 am - 11:58 amDCA-LAS
8h 58m1 stop
JetBlue Logo
9:53 am - 10:59 pmLAS-DCA
10h 06m1 stop
$217JetBlue
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Wed, Dec 10 - Tue, Dec 16
JetBlue Logo
5:43 pm - 10:49 pmDCA-LAS
8h 06m1 stop
JetBlue Logo
10:00 pm - 11:00 amLAS-DCA
10h 00m1 stop
$237JetBlue
Find Deal
Mon, Nov 24 - Wed, Nov 26

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
Nov 11
DCA6:00 pmWashington, D.C. Reagan-National
8h 29m
1 stop
LAS11:29 pmLas Vegas Harry Reid Intl
Nov 14
LAS6:31 pmLas Vegas Harry Reid Intl
39h 31m
2 stops
DCA1:02 pmWashington, D.C. Reagan-National
$184
Find similar
Frontier
Nov 14
DCA6:00 pmWashington, D.C. Reagan-National
8h 29m
1 stop
LAS11:29 pmLas Vegas Harry Reid Intl
Nov 19
LAS12:34 pmLas Vegas Harry Reid Intl
6h 25m
1 stop
DCA9:59 pmWashington, D.C. Reagan-National
$185
Find similar
Frontier
Dec 6
DCA8:00 amWashington, D.C. Reagan-National
14h 56m
2 stops
LAS7:56 pmLas Vegas Harry Reid Intl
Dec 11
LAS5:07 pmLas Vegas Harry Reid Intl
25h 52m
1 stop
DCA9:59 pmWashington, D.C. Reagan-National
$187
Find similar

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
Nov 24
DCA5:43 pmWashington, D.C. Reagan-National
8h 06m
1 stop
LAS10:49 pmLas Vegas Harry Reid Intl
Dec 9
LAS9:53 amLas Vegas Harry Reid Intl
10h 06m
1 stop
DCA10:59 pmWashington, D.C. Reagan-National
$198
Find similar
JetBlue
Dec 10
DCA6:00 amWashington, D.C. Reagan-National
8h 58m
1 stop
LAS11:58 amLas Vegas Harry Reid Intl
Dec 16
LAS9:53 amLas Vegas Harry Reid Intl
10h 06m
1 stop
DCA10:59 pmWashington, D.C. Reagan-National
$217
Find similar
JetBlue
Nov 24
DCA5:43 pmWashington, D.C. Reagan-National
8h 06m
1 stop
LAS10:49 pmLas Vegas Harry Reid Intl
Nov 26
LAS10:00 pmLas Vegas Harry Reid Intl
10h 00m
1 stop
DCA11:00 amWashington, D.C. Reagan-National
$237
Find similar

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 October 30, 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 11/11

6:00 pm-11:29 pm

1 stop8h 29m

Las Vegas Harry Reid Intl

Fri 11/14

6:31 pm-1:02 pm

2 stops39h 31m

$184

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Fri 11/14

6:00 pm-11:29 pm

1 stop8h 29m

Las Vegas Harry Reid Intl

Wed 11/19

12:34 pm-9:59 pm

1 stop6h 25m

$185

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Sat 12/6

8:00 am-7:56 pm

2 stops14h 56m

Las Vegas Harry Reid Intl

Thu 12/11

5:07 pm-9:59 pm

1 stop25h 52m

$187

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Fri 1/23

6:00 pm-11:42 pm

1 stop8h 42m

Las Vegas Harry Reid Intl

Tue 1/27

7:51 pm-4:59 pm

2 stops18h 08m

$189

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Tue 1/20

2:00 pm-7:14 pm

1 stop8h 14m

Las Vegas Harry Reid Intl

Thu 1/29

7:51 pm-1:05 pm

1 stop14h 14m

$190

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Thu 1/8

6:00 pm-11:42 pm

1 stop8h 42m

Las Vegas Harry Reid Intl

Mon 1/12

6:00 am-1:04 pm

1 stop28h 04m

$191

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Tue 12/16

2:00 pm-7:39 am

1 stop20h 39m

Las Vegas Harry Reid Intl

Fri 12/19

6:00 am-1:01 pm

1 stop28h 01m

$193

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Mon 11/24

5:43 pm-10:49 pm

1 stop8h 06m

Las Vegas Harry Reid Intl

Tue 12/9

9:53 am-10:59 pm

1 stop10h 06m

$198

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Wed 12/10

6:00 am-11:58 am

1 stop8h 58m

Las Vegas Harry Reid Intl

Tue 12/16

9:53 am-10:59 pm

1 stop10h 06m

$217

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Mon 11/24

5:43 pm-10:49 pm

1 stop8h 06m

Las Vegas Harry Reid Intl

Wed 11/26

10:00 pm-11:00 am

1 stop10h 00m

$237

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 $345. The month of November is another great option to travel to Las Vegas, with average flight prices from Washington, D.C. Reagan-National Airport averaging around $355.

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 $353. Flights from Washington, D.C. Reagan-National Airport to Las Vegas on a Thursday will generally be more expensive and average around $433. 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 $368. Flights to Las Vegas are more costly in the afternoon, with an average ticket price of $450. 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 $405 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 $338 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 2% 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 October 2025, prices for Washington, D.C. Reagan-National Airport to Las Vegas flights are approximately 9% 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

$208

Fastest flight time

5h 15m

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 $208. 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 $398.
The fastest flight from Washington, D.C. Reagan-National Airport to Las Vegas takes 5h 15m
Direct flights go from Washington, D.C. Reagan-National Airport to Las Vegas every day.
There is 1 airport near Las Vegas: Las Vegas Harry Reid Intl (LAS)
Search flight deals

  • 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 6h 57m.

  • 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 $126Free CancellationRating
6.3
8,115 reviews
Search Spirit Airlines flights
FrontierPriceFrom $130Free CancellationRating
5.8
3,123 reviews
Search Frontier flights
Alaska AirlinesPriceFrom $188Free CancellationRating
8.0
11,214 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $240Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
JetBluePriceFrom $253Free CancellationRating
7.2
2,906 reviews
Search JetBlue flights
United AirlinesPriceFrom $254Free CancellationRating
7.4
8,998 reviews
Search United Airlines flights
DeltaPriceFrom $256Free CancellationRating
7.9
7,993 reviews
Search Delta flights
American AirlinesPriceFrom $263Free CancellationRating
7.2
11,030 reviews
Search American Airlines 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 1 flight/week on average for this route. A good Southwest flight deal for Washington, D.C. Reagan-National Airport to Las Vegas starts from $240 round-trip, up to an average price of $467. Our users have rated Southwest at 8.0/10.

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

    American Airlines (7.2/10 from 11,030 reviews) operates around 2 flights from Washington, D.C. Reagan-National Airport to Las Vegas in any given week. The average American Airlines airfare for this route is around $473, with deals from around $263 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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