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Cheap flights from Washington, D.C. Reagan-National Airport to Las Vegas from C$ 133

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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — LAS
3 Sep — 10 Sep1
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 August 2026.

Sat 22/87:00 a.m. -
Nonstop5h 10m
Sat 29/81:10 p.m. -
Nonstop4h 45m
Deal found 31/7C$ 265
Sat 22/87:00 a.m. -
Nonstop5h 10m
Mon 24/811:30 p.m. -
1 stop6h 20m
Deal found 31/7C$ 279
Thu 27/811:45 a.m. -
1 stop8h 55m
Mon 31/811:15 a.m. -
1 stop6h 40m
Deal found 4/8C$ 293
Fri 28/84:55 p.m. -
2 stops9h 00m
Sat 29/812:20 a.m. -
1 stop7h 50m
Deal found 3/8C$ 300
Sat 22/87:00 a.m. -
Nonstop5h 10m
Wed 26/89:20 a.m. -
Nonstop4h 40m
Deal found 3/8C$ 307
Tue 1/94:40 p.m. -
Nonstop5h 00m
Fri 11/99:45 a.m. -
1 stop8h 10m
Deal found 4/8C$ 321
Mon 31/86:55 a.m. -
2 stops9h 30m
Wed 2/99:20 a.m. -
Nonstop4h 40m
Deal found 1/8C$ 323
Wed 19/86:05 a.m. -
2 stops8h 05m
Wed 26/89:20 a.m. -
Nonstop4h 40m
Deal found 30/7C$ 328
Thu 20/85:20 p.m. -
1 stop7h 25m
Tue 25/812:10 p.m. -
1 stop6h 30m
Deal found 3/8C$ 336
Mon 31/86:55 a.m. -
2 stops9h 30m
Wed 9/97:55 a.m. -
1 stop9h 15m
Deal found 4/8C$ 337

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 August 2026.

Round-trip from

C$ 265

One-way from

C$ 133

Popular in

July

Cheapest in

August

Average price

C$ 532
Southwest
  • Southwest
  • 22/8-28/8
  • Nonstop
  • 9h 50m total
  • Washington, D.C. to Las Vegas
Search Deals
Southwest
  • Southwest
  • 29/8
  • Nonstop
  • 5h 10m total
  • Washington, D.C. to Las Vegas
Search Deals
Highest demand for flights based on searches. 2% potential increase in price (C$ 24 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 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 August 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
Quickest round-trip

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Fri 21/8

3:15 p.m.-8:00 p.m.

1 stop7h 45m

Las Vegas Harry Reid Intl

Tue 25/8

9:20 a.m.-5:00 p.m.

Nonstop4h 40m

C$ 279

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Sat 29/8

12:30 p.m.-5:50 p.m.

1 stop8h 20m

Las Vegas Harry Reid Intl

Sat 29/8

12:20 a.m.-11:10 a.m.

1 stop7h 50m

C$ 293

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Fri 28/8

6:30 p.m.-11:10 p.m.

1 stop7h 40m

Las Vegas Harry Reid Intl

Mon 31/8

10:15 p.m.-8:31 a.m.

1 stop7h 16m

C$ 361

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Fri 28/8

6:30 p.m.-11:10 p.m.

1 stop7h 40m

Las Vegas Harry Reid Intl

Tue 1/9

2:02 p.m.-11:50 p.m.

1 stop6h 48m

C$ 361

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Sun 30/8

6:30 p.m.-11:10 p.m.

1 stop7h 40m

Las Vegas Harry Reid Intl

Fri 4/9

1:55 p.m.-11:50 p.m.

1 stop6h 55m

C$ 369

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Thu 20/8

3:00 p.m.-8:16 p.m.

1 stop8h 16m

Las Vegas Harry Reid Intl

Mon 24/8

10:15 p.m.-8:31 a.m.

1 stop7h 16m

C$ 369

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Tue 18/8

7:45 a.m.-12:38 p.m.

1 stop7h 53m

Las Vegas Harry Reid Intl

Fri 21/8

11:45 p.m.-9:10 a.m.

1 stop6h 25m

C$ 369

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Thu 5/11

5:15 p.m.-10:05 p.m.

1 stop7h 50m

Las Vegas Harry Reid Intl

Sun 8/11

12:20 a.m.-10:10 a.m.

1 stop6h 50m

C$ 378

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Fri 11/9

5:25 p.m.-9:45 p.m.

1 stop7h 20m

Las Vegas Harry Reid Intl

Mon 14/9

11:30 p.m.-8:50 a.m.

1 stop6h 20m

C$ 378

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Sat 19/9

5:52 p.m.-10:17 p.m.

1 stop7h 25m

Las Vegas Harry Reid Intl

Mon 21/9

11:38 p.m.-10:06 a.m.

1 stop7h 28m

C$ 378

Flights are sorted by cheapest round-trip flights first.

Deals found on 31/7

Showing 1-10 of 19 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?

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 89 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$ 532). Flying from Washington, D.C. Reagan-National Airport to Las Vegas in July is currently the most expensive (average of C$ 800). 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 August 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?

Airfare is below average for this route at the moment.

Washington, D.C. Reagan-National Airport to Las Vegas flights typically cost between C$ 376 and C$ 759 in August.
The cheapest round-trip price found within the last 5 days was C$ 265 on Southwest (22 Aug-29 Aug).

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 1 inbound flight 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$ 361, Southwest can have you in Las Vegas from Washington, D.C. Reagan-National Airport in 7h 40m. 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$ 532). Flying from Washington, D.C. Reagan-National Airport to Las Vegas in July is currently the most expensive (average of C$ 800). 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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