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Cheap flights from Washington, D.C. Reagan-National Airport to Las Vegas from C$ 188

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 13/7. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — LAS
17 Jul — 24 Jul1
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 17 June 2026.

Tue 11/85:29 p.m.
DCA
-
LAS
1 stop6h 42m
Delta
Fri 14/810:45 p.m.
LAS
-
DCA
1 stop6h 51m
Delta
Deal found 17/6C$ 360
Tue 28/76:30 p.m.
DCA
-
LAS
1 stop7h 05m
Delta
Wed 5/85:50 a.m.
LAS
-
DCA
1 stop7h 44m
Delta
Deal found 16/6C$ 374
Sat 29/812:30 p.m.
DCA
-
LAS
2 stops7h 40m
Southwest
Tue 1/99:20 a.m.
LAS
-
DCA
Nonstop4h 40m
Southwest
Deal found 12/6C$ 389
Thu 20/86:50 p.m.
DCA
-
LAS
1 stop6h 25m
Southwest
Sat 22/811:30 p.m.
LAS
-
DCA
1 stop6h 05m
Southwest
Deal found 16/6C$ 396
Sat 29/87:00 a.m.
DCA
-
LAS
Nonstop5h 10m
Southwest
Sat 5/97:35 a.m.
LAS
-
DCA
1 stop8h 50m
Southwest
Deal found 15/6C$ 402
Tue 18/86:00 a.m.
DCA
-
LAS
1 stop7h 35m
Southwest
Tue 25/89:45 a.m.
LAS
-
DCA
2 stops8h 10m
Southwest
Deal found 17/6C$ 403
Sun 9/84:45 p.m.
DCA
-
LAS
1 stop7h 05m
Southwest
Thu 13/86:45 a.m.
LAS
-
DCA
1 stop5h 55m
Southwest
Deal found 16/6C$ 410
Wed 1/74:55 p.m.
DCA
-
LAS
1 stop6h 35m
Southwest
Wed 8/76:50 a.m.
LAS
-
DCA
1 stop6h 05m
Southwest
Deal found 12/6C$ 416
Tue 4/86:05 a.m.
DCA
-
LAS
2 stops8h 05m
Southwest
Thu 6/86:55 a.m.
LAS
-
DCA
1 stop6h 15m
Southwest
Deal found 17/6C$ 417
Sat 22/87:00 a.m.
DCA
-
LAS
Nonstop5h 10m
Southwest
Mon 24/89:00 a.m.
LAS
-
DCA
Nonstop4h 40m
Southwest
Deal found 14/6C$ 419
Wed 1/77:55 a.m.
DCA
-
LAS
1 stop7h 15m
Southwest
Sat 11/75:10 a.m.
LAS
-
DCA
1 stop9h 50m
Southwest
Deal found 16/6C$ 423

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 17 June 2026.

Round-trip from

C$ 360

One-way from

C$ 188

Popular in

June

Cheapest in

August

Average price

C$ 771
Delta
  • Delta
  • 8/8-17/8
  • 2 total stops
  • 14h 51m total
  • Washington, D.C. to Las Vegas
Search Deals
Delta
  • Delta
  • 13/7
  • 1 total stop
  • 7h 05m total
  • Washington, D.C. to Las Vegas
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (C$ 107 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (C$ 15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 17 June 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

Sat 29/8

12:30 p.m.-5:10 p.m.

2 stops7h 40m

Las Vegas Harry Reid Intl

Tue 1/9

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

Nonstop4h 40m

C$ 389

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Wed 7/10

10:59 a.m.-6:28 p.m.

1 stop10h 29m

Las Vegas Harry Reid Intl

Sat 10/10

8:27 a.m.-9:00 p.m.

1 stop9h 33m

C$ 511

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Fri 28/8

4:20 p.m.-7:45 p.m.

1 stop6h 25m

Las Vegas Harry Reid Intl

Sun 30/8

7:35 a.m.-6:00 p.m.

2 stops7h 25m

C$ 515

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Fri 24/7

2:00 p.m.-6:55 p.m.

2 stops7h 55m

Las Vegas Harry Reid Intl

Wed 29/7

6:35 a.m.-4:10 p.m.

1 stop6h 35m

C$ 521
Quickest round-trip

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Sat 26/9

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

Nonstop5h 10m

Las Vegas Harry Reid Intl

Tue 29/9

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

Nonstop4h 40m

C$ 525

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Sat 24/10

7:25 a.m.-9:30 a.m.

Nonstop5h 05m

Las Vegas Harry Reid Intl

Wed 28/10

8:05 a.m.-6:15 p.m.

1 stop7h 10m

C$ 526

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Wed 15/7

3:40 p.m.-8:45 p.m.

1 stop8h 05m

Las Vegas Harry Reid Intl

Tue 21/7

6:50 a.m.-6:55 p.m.

1 stop9h 05m

C$ 528

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Tue 11/8

10:58 a.m.-6:24 p.m.

1 stop10h 26m

Las Vegas Harry Reid Intl

Sun 16/8

11:55 p.m.-11:01 a.m.

1 stop8h 06m

C$ 543
Cheapest one-way

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Sat 15/8

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

Nonstop5h 10m

C$ 244

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Mon 14/9

6:59 p.m.-12:29 p.m.

1 stop20h 30m

C$ 246

Flights are sorted by cheapest round-trip flights first.

Deals found on 15/6

Showing 1-10 of 18 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$ 503). Flying from Washington, D.C. Reagan-National Airport to Las Vegas in June is currently the most expensive (average of C$ 771). 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 17 June 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 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$ 389, 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.

  • 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$ 503). Flying from Washington, D.C. Reagan-National Airport to Las Vegas in June is currently the most expensive (average of C$ 771). 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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Yes! Cheapflights helps users easily find flights from Reagan-National to Las Vegas with no change fees.

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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