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Cheap flights from Washington, D.C. Reagan-National Airport to Las Vegas from C$ 171

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/6. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — LAS
3 Jun — 10 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Reagan-National to Las Vegas

Enter your travel dates to find the best prices.

Cheapest flights from Reagan-National to Las Vegas
Explore the most affordable flight options available from Reagan-National to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 May 2026.

Fri 29/56:00 p.m.
DCA
-
LAS
2 stops16h 41m
Multiple Airlines
Thu 4/612:29 a.m.
LAS
-
DCA
1 stop9h 30m
Multiple Airlines
Deal found 1/5C$ 427
Tue 13/107:59 a.m.
DCA
-
LAS
1 stop12h 14m
JetBlue
Sat 17/1011:36 a.m.
LAS
-
DCA
1 stop9h 04m
JetBlue
Deal found 1/5C$ 458
Wed 9/94:40 p.m.
DCA
-
LAS
Nonstop5h 00m
Southwest
Wed 23/99:20 a.m.
LAS
-
DCA
Nonstop4h 40m
Southwest
Deal found 30/4C$ 485
Tue 22/93:00 p.m.
DCA
-
LAS
1 stop6h 35m
Southwest
Wed 30/99:20 a.m.
LAS
-
DCA
Nonstop4h 40m
Southwest
Deal found 4/5C$ 499
Wed 27/56:59 p.m.
DCA
-
LAS
1 stop7h 14m
Delta
Tue 2/611:15 p.m.
LAS
-
DCA
1 stop6h 22m
Delta
Deal found 29/4C$ 512
Tue 26/55:26 p.m.
DCA
-
LAS
1 stop8h 07m
American Airlines
Thu 28/511:42 a.m.
LAS
-
DCA
Nonstop4h 43m
American Airlines
Deal found 29/4C$ 514
Sat 6/67:00 a.m.
DCA
-
LAS
Nonstop5h 10m
Southwest
Tue 9/66:50 a.m.
LAS
-
DCA
1 stop9h 05m
Southwest
Deal found 29/4C$ 515
Wed 17/66:05 a.m.
DCA
-
LAS
2 stops8h 00m
Southwest
Wed 24/65:00 a.m.
LAS
-
DCA
1 stop8h 20m
Southwest
Deal found 4/5C$ 519
Wed 24/66:05 a.m.
DCA
-
LAS
2 stops8h 00m
Southwest
Tue 30/61:05 p.m.
LAS
-
DCA
2 stops7h 25m
Southwest
Deal found 2/5C$ 526
Wed 27/56:59 p.m.
DCA
-
LAS
1 stop7h 14m
Delta
Thu 28/511:15 p.m.
LAS
-
DCA
1 stop6h 22m
Delta
Deal found 2/5C$ 529
Wed 14/106:00 a.m.
DCA
-
LAS
1 stop8h 50m
JetBlue
Fri 16/1011:36 a.m.
LAS
-
DCA
1 stop9h 04m
JetBlue
Deal found 1/5C$ 533
Mon 25/57:20 p.m.
DCA
-
LAS
1 stop7h 35m
Southwest
Wed 3/611:35 a.m.
LAS
-
DCA
2 stops8h 25m
Southwest
Deal found 4/5C$ 535

Find flight deals from Reagan-National to Las Vegas

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) to Las Vegas (LAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 4 May 2026.

Round-trip from

C$ 427

One-way from

C$ 171

Popular in

April

Cheapest in

August

Average price

C$ 586
Frontier
  • Frontier
  • 29/5-4/6
  • 3 total stops
  • 26h 11m total
  • Washington, D.C. to Las Vegas
Search Deals
Frontier
  • Frontier
  • 15/6
  • 1 total stop
  • 9h 48m total
  • Washington, D.C. to Las Vegas
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (C$ 54 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National 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, Cheapflights users made 629,999 searches. Data last updated 4 May 2026.
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

Cheapest round-trip

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Tue 26/5

2:00 p.m.-8:00 p.m.

2 stops9h 00m

Las Vegas Harry Reid Intl

Thu 28/5

11:55 p.m.-11:10 a.m.

1 stop8h 15m

C$ 576

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Wed 5/8

8:59 a.m.-1:58 p.m.

1 stop7h 59m

Las Vegas Harry Reid Intl

Thu 6/8

7:59 a.m.-9:00 p.m.

1 stop10h 01m

C$ 586
Quickest round-trip

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Tue 25/8

4:40 p.m.-6:40 p.m.

Nonstop5h 00m

Las Vegas Harry Reid Intl

Sun 6/9

8:55 a.m.-4:35 p.m.

Nonstop4h 40m

C$ 597

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Tue 22/9

1:00 p.m.-4:45 p.m.

1 stop6h 45m

Las Vegas Harry Reid Intl

Sat 26/9

1:10 p.m.-8:55 p.m.

Nonstop4h 45m

C$ 610

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Thu 25/6

5:20 p.m.-9:20 p.m.

1 stop7h 00m

Las Vegas Harry Reid Intl

Tue 30/6

7:50 a.m.-6:15 p.m.

1 stop7h 25m

C$ 624

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Mon 25/5

4:55 p.m.-9:50 p.m.

2 stops7h 55m

Las Vegas Harry Reid Intl

Wed 3/6

11:35 a.m.-11:00 p.m.

2 stops8h 25m

C$ 635

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Fri 2/10

6:59 p.m.-8:44 a.m.

1 stop16h 45m

Las Vegas Harry Reid Intl

Mon 5/10

8:47 p.m.-5:57 p.m.

1 stop18h 10m

C$ 674

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Thu 28/5

6:59 p.m.-9:03 a.m.

1 stop17h 04m

Las Vegas Harry Reid Intl

Mon 1/6

7:39 p.m.-9:00 p.m.

2 stops22h 21m

C$ 693

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Wed 7/10

4:35 p.m.-6:40 p.m.

Nonstop5h 05m

Las Vegas Harry Reid Intl

Sat 10/10

1:15 a.m.-12:20 p.m.

1 stop8h 05m

C$ 722

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Sat 8/8

7:00 a.m.-9:10 a.m.

Nonstop5h 10m

Las Vegas Harry Reid Intl

Sat 15/8

10:10 a.m.-9:50 p.m.

1 stop8h 40m

C$ 722

Flights are sorted by cheapest round-trip flights first.

Deals found on 30/4

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Best time to book a flight from Reagan-National to Las Vegas

Have a flexible travel schedule? Discover the best time to fly to Las Vegas from Reagan-National with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Reagan-National Airport to Las Vegas

How far ahead should I book a flight from Washington, D.C. Reagan-National Airport to Las Vegas?

To ensure you get the cheapest price possible for a flight from Washington, D.C. Reagan-National Airport to Las Vegas, you should look to book at least 43 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Las Vegas?

Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Las Vegas (average of C$ 472). Flying from Washington, D.C. Reagan-National Airport to Las Vegas in April is currently the most expensive (average of C$ 705). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DCA to LAS?

Find hourly flight availability from Reagan-National to Las Vegas. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 4 May 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Washington, D.C. Reagan-National Airport to Las Vegas as you normally would.

How much does it cost to fly round-trip from Washington, D.C. Reagan-National Airport to Las Vegas?

Related info for your journey

Find useful and relevant information for your journey from Reagan-National to Las Vegas. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Las Vegas from Washington, D.C. Reagan-National?

    For a flight from Washington, D.C. Reagan-National to Las Vegas, you will be flying into Harry Reid Intl. Las Vegas Harry Reid Intl (LAS) is just 10.0 km from the centre of the city. Harry Reid Intl is the only Las Vegas airport and it handles 3 inbound flights from Washington, D.C. Reagan-National per day. 0 airlines have flights to Las Vegas Harry Reid Intl from Washington, D.C. Reagan-National on a regular basis.

  • How long is the flight from Washington, D.C. Reagan-National Airport to Las Vegas?

    For as low as C$ 586, Southwest can have you in Las Vegas from Washington, D.C. Reagan-National Airport in 7h 59m. The distance from Washington, D.C. Reagan-National Airport to Las Vegas is about 3351 km. This flight may include one or multiple stops.

  • Can I find deals for flights from Reagan-National to Las Vegas that include hotel bookings?

    Yes. In addition to deals on Reagan-National to Las Vegas flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Reagan-National to Las Vegas?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to Las Vegas.

  • Can I find deals for business class flights from Reagan-National to Las Vegas?

    Yes. Cheapflights offers flight deals from Reagan-National to Las Vegas by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Las Vegas?

    Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Las Vegas (average of C$ 472). Flying from Washington, D.C. Reagan-National Airport to Las Vegas in April is currently the most expensive (average of C$ 705). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Can Cheapflights notify me if prices for flights from Reagan-National to Las Vegas become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Las Vegas from Reagan-National today and book when prices fit your budget.

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