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Cheap flights from Washington, D.C. Reagan-National Airport to Las Vegas from C$ 167

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 14/4. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — LAS
17 Apr — 24 Apr1
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 18 March 2026.

Mon 21/95:04 p.m.
DCA
-
LAS
1 stop9h 55m
Alaska Airlines
Thu 24/910:17 a.m.
LAS
-
DCA
1 stop7h 43m
Alaska Airlines
Deal found 13/3C$ 422
Tue 15/95:04 p.m.
DCA
-
LAS
1 stop9h 55m
Alaska Airlines
Mon 28/910:21 p.m.
LAS
-
DCA
1 stop16h 38m
Alaska Airlines
Deal found 17/3C$ 427
Wed 22/48:59 a.m.
DCA
-
LAS
1 stop8h 00m
Alaska Airlines
Thu 30/410:19 a.m.
LAS
-
DCA
1 stop7h 41m
Alaska Airlines
Deal found 16/3C$ 430
Mon 6/45:20 p.m.
DCA
-
LAS
1 stop9h 37m
Alaska Airlines
Thu 9/410:08 a.m.
LAS
-
DCA
1 stop7h 52m
Alaska Airlines
Deal found 17/3C$ 433
Sun 3/58:59 a.m.
DCA
-
LAS
1 stop8h 00m
Alaska Airlines
Sat 9/58:00 a.m.
LAS
-
DCA
1 stop10h 59m
Alaska Airlines
Deal found 18/3C$ 434
Mon 1/65:25 p.m.
DCA
-
LAS
1 stop8h 55m
JetBlue
Mon 15/68:50 p.m.
LAS
-
DCA
1 stop10h 50m
JetBlue
Deal found 17/3C$ 440
Wed 27/52:55 p.m.
DCA
-
LAS
1 stop11h 25m
JetBlue
Fri 29/510:50 a.m.
LAS
-
DCA
1 stop9h 09m
JetBlue
Deal found 14/3C$ 446
Mon 21/95:04 p.m.
DCA
-
LAS
1 stop9h 55m
Alaska Airlines
Sat 26/910:14 a.m.
LAS
-
DCA
1 stop8h 45m
Alaska Airlines
Deal found 13/3C$ 448
Tue 24/38:00 a.m.
DCA
-
LAS
1 stop18h 40m
Frontier
Fri 27/36:00 a.m.
LAS
-
DCA
1 stop12h 59m
Frontier
Deal found 14/3C$ 450
Sun 18/1010:59 a.m.
DCA
-
LAS
1 stop8h 43m
Alaska Airlines
Thu 22/1010:17 a.m.
LAS
-
DCA
1 stop7h 43m
Alaska Airlines
Deal found 16/3C$ 463
Sat 25/46:59 p.m.
DCA
-
LAS
2 stops22h 00m
Alaska Airlines
Wed 29/410:19 a.m.
LAS
-
DCA
1 stop7h 41m
Alaska Airlines
Deal found 17/3C$ 468
Tue 6/1010:59 a.m.
DCA
-
LAS
1 stop8h 43m
Alaska Airlines
Wed 7/1010:17 a.m.
LAS
-
DCA
1 stop7h 43m
Alaska Airlines
Deal found 17/3C$ 470

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 18 March 2026.

Round-trip from

C$ 422

One-way from

C$ 167

Popular in

February

Cheapest in

August

Average price

C$ 679
Alaska Airlines
  • Alaska Airlines
  • 29/4-8/5
  • 2 total stops
  • 19h 59m total
  • Washington, D.C. to Las Vegas
Search Deals
Frontier
  • Frontier
  • 14/4
  • 2 total stops
  • 40h 29m total
  • Washington, D.C. to Las Vegas
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (C$ 113 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 18 March 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 28/4

8:00 a.m.-6:30 p.m.

2 stops13h 30m

Las Vegas Harry Reid Intl

Fri 1/5

10:19 a.m.-9:00 p.m.

1 stop7h 41m

C$ 508

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Tue 21/4

4:30 p.m.-8:05 p.m.

1 stop6h 35m

Las Vegas Harry Reid Intl

Tue 28/4

9:10 a.m.-4:40 p.m.

Nonstop4h 30m

C$ 530

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Thu 7/5

5:00 p.m.-9:10 p.m.

1 stop7h 10m

Las Vegas Harry Reid Intl

Mon 11/5

11:20 p.m.-10:05 a.m.

1 stop7h 45m

C$ 549

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Fri 28/8

6:59 p.m.-10:33 a.m.

1 stop18h 34m

Las Vegas Harry Reid Intl

Tue 1/9

10:21 p.m.-8:00 p.m.

2 stops18h 39m

C$ 601

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Fri 17/4

11:40 a.m.-3:05 p.m.

1 stop6h 25m

Las Vegas Harry Reid Intl

Sat 18/4

1:05 p.m.-8:50 p.m.

Nonstop4h 45m

C$ 626

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Sat 23/5

12:15 p.m.-6:40 p.m.

2 stops9h 25m

Las Vegas Harry Reid Intl

Mon 25/5

1:10 p.m.-9:55 p.m.

1 stop5h 45m

C$ 646

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Fri 1/5

4:50 p.m.-7:00 p.m.

Nonstop5h 10m

Las Vegas Harry Reid Intl

Mon 4/5

11:55 p.m.-8:55 a.m.

1 stop6h 00m

C$ 679

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Sun 26/4

4:35 p.m.-6:45 p.m.

Nonstop5h 10m

Las Vegas Harry Reid Intl

Fri 1/5

9:00 a.m.-4:45 p.m.

Nonstop4h 45m

C$ 713
Quickest round-trip

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Sat 20/6

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

Nonstop5h 10m

Las Vegas Harry Reid Intl

Tue 23/6

9:25 a.m.-5:00 p.m.

Nonstop4h 35m

C$ 713

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Sun 28/6

7:55 p.m.-12:30 a.m.

1 stop7h 35m

Las Vegas Harry Reid Intl

Thu 2/7

1:50 p.m.-10:55 p.m.

1 stop6h 05m

C$ 741

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/3

Showing 1-10 of 24 resultsSorted by cheapest first
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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?

Use this chart to determine the optimal time to book a round-trip flight from Reagan-National to Las Vegas. Price data was last updated on 13 March 2026.

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 24 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$ 218). Flying from Washington, D.C. Reagan-National Airport to Las Vegas in March is currently the most expensive (average of C$ 360). 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 18 March 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.

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 2 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$ 530, Southwest can have you in Las Vegas from Washington, D.C. Reagan-National Airport in 6h 35m. The distance from Washington, D.C. Reagan-National Airport to Las Vegas is about 3351 km.

  • 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$ 218). Flying from Washington, D.C. Reagan-National Airport to Las Vegas in March is currently the most expensive (average of C$ 360). 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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