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Cheap flights from Washington, D.C. Reagan-National Airport to Las Vegas from C$ 168

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 1/1. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — LAS
11 Jan — 18 Jan1
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 12 December 2025.

Wed 31/123:25 p.m.DCA - LAS
1 stop10h 20mJetBlue
Mon 5/111:59 p.m.LAS - DCA
1 stop11h 30mJetBlue
Deal found 9/12C$ 423
Sun 14/128:00 a.m.DCA - LAS
1 stop30h 07mFrontier
Wed 17/127:24 p.m.LAS - DCA
1 stop14h 37mFrontier
Deal found 10/12C$ 455
Fri 26/126:15 a.m.DCA - LAS
1 stop8h 06mJetBlue
Sun 28/1210:03 a.m.LAS - DCA
1 stop9h 43mJetBlue
Deal found 11/12C$ 465
Wed 24/125:59 p.m.DCA - LAS
1 stop9h 58mUnited Airlines
Tue 30/1212:59 a.m.LAS - DCA
1 stop7h 30mUnited Airlines
Deal found 11/12C$ 490
Thu 25/1212:05 p.m.DCA - LAS
1 stop10h 35mJetBlue
Mon 29/129:58 a.m.LAS - DCA
1 stop9h 48mJetBlue
Deal found 12/12C$ 503
Wed 17/126:00 a.m.DCA - LAS
1 stop8h 52mJetBlue
Thu 25/1210:03 a.m.LAS - DCA
1 stop9h 43mJetBlue
Deal found 10/12C$ 574
Wed 17/126:00 a.m.DCA - LAS
1 stop8h 52mJetBlue
Fri 26/1210:03 a.m.LAS - DCA
1 stop9h 43mJetBlue
Deal found 9/12C$ 576
Thu 25/126:00 a.m.DCA - LAS
1 stop7h 40mSouthwest
Wed 31/1211:15 p.m.LAS - DCA
1 stop6h 25mSouthwest
Deal found 10/12C$ 600
Wed 31/1211:40 a.m.DCA - LAS
2 stops10h 10mSouthwest
Thu 1/16:05 a.m.LAS - DCA
1 stop5h 55mSouthwest
Deal found 10/12C$ 607
Wed 24/125:11 p.m.DCA - LAS
1 stop8h 14mDelta
Wed 31/1210:04 p.m.LAS - DCA
1 stop8h 08mDelta
Deal found 9/12C$ 616

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 12 December 2025.

Round-trip from

C$ 346

One-way from

C$ 168

Popular in

December

Cheapest in

August

Average price

C$ 676
JetBlue
  • JetBlue
  • 31/3-2/4
  • 2 total stops
  • 20h 44m total
  • Washington, D.C. to Las Vegas
Search Deals
Frontier
  • Frontier
  • 1/1
  • 1 total stop
  • 18h 42m total
  • Washington, D.C. to Las Vegas
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (C$ 45 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 December 2025
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 12 December 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

Reagan-National

Fly to

Las Vegas

Route

Depart

Return

Price

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Tue 31/3

11:45 a.m.-9:15 p.m.

1 stop12h 30m

Las Vegas Harry Reid Intl

Sat 4/4

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

1 stop11h 00m

C$ 346

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Tue 17/3

1:00 p.m.-8:45 p.m.

1 stop10h 45m

Las Vegas Harry Reid Intl

Mon 23/3

10:00 p.m.-11:05 a.m.

1 stop10h 05m

C$ 385

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Tue 31/3

6:00 a.m.-1:41 p.m.

1 stop10h 41m

Las Vegas Harry Reid Intl

Wed 15/4

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

1 stop10h 00m

C$ 385

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Wed 21/1

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

1 stop17h 00m

Las Vegas Harry Reid Intl

Tue 27/1

5:42 p.m.-8:00 p.m.

2 stops23h 18m

C$ 428

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Wed 21/1

8:59 a.m.-9:00 p.m.

2 stops15h 01m

Las Vegas Harry Reid Intl

Sat 24/1

6:00 a.m.-9:59 p.m.

2 stops12h 59m

C$ 434

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Mon 4/5

2:59 p.m.-11:52 p.m.

1 stop11h 53m

Las Vegas Harry Reid Intl

Mon 18/5

8:52 p.m.-9:06 a.m.

1 stop9h 14m

C$ 472

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Sat 21/2

4:00 p.m.-6:25 p.m.

Nonstop5h 25m

Las Vegas Harry Reid Intl

Wed 25/2

6:40 a.m.-3:25 p.m.

1 stop5h 45m

C$ 477

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Thu 8/1

8:59 a.m.-10:00 p.m.

2 stops16h 01m

Las Vegas Harry Reid Intl

Fri 16/1

3:58 p.m.-4:01 p.m.

2 stops21h 03m

C$ 488

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Wed 15/4

6:05 a.m.-7:37 p.m.

1 stop16h 32m

Las Vegas Harry Reid Intl

Fri 1/5

11:36 p.m.-6:11 p.m.

1 stop15h 35m

C$ 495

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Tue 10/2

8:59 a.m.-9:00 p.m.

2 stops15h 01m

Las Vegas Harry Reid Intl

Fri 13/2

7:29 p.m.-4:00 p.m.

2 stops17h 31m

C$ 505

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

Showing 1-10 of 21 results
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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 5 December 2025.

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 61 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, January is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Las Vegas (average of C$ 182). Flying from Washington, D.C. Reagan-National Airport to Las Vegas in December is currently the most expensive (average of C$ 330). 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 12 December 2025.

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$ 346, JetBlue can have you in Las Vegas from Washington, D.C. Reagan-National Airport in 12h 30m. 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, January is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Las Vegas (average of C$ 182). Flying from Washington, D.C. Reagan-National Airport to Las Vegas in December is currently the most expensive (average of C$ 330). 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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