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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 13/4. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — LAS
28 Feb — 7 Mar1
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 29 January 2026.

Sat 4/46:00 p.m.
DCA
-
LAS
1 stop9h 04m
JetBlue
Wed 15/49:45 a.m.
LAS
-
DCA
1 stop8h 15m
JetBlue
Deal found 28/1C$ 341
Wed 8/48:59 a.m.
DCA
-
LAS
1 stop10h 08m
Alaska Airlines
Wed 15/410:33 a.m.
LAS
-
DCA
1 stop7h 27m
Alaska Airlines
Deal found 28/1C$ 362
Wed 18/33:55 p.m.
DCA
-
LAS
1 stop10h 09m
JetBlue
Wed 25/310:10 p.m.
LAS
-
DCA
1 stop8h 41m
JetBlue
Deal found 27/1C$ 375
Sat 14/33:55 p.m.
DCA
-
LAS
1 stop10h 09m
JetBlue
Tue 24/310:10 p.m.
LAS
-
DCA
1 stop8h 41m
JetBlue
Deal found 27/1C$ 379
Wed 8/48:59 a.m.
DCA
-
LAS
1 stop10h 08m
Alaska Airlines
Tue 21/410:33 a.m.
LAS
-
DCA
1 stop7h 27m
Alaska Airlines
Deal found 28/1C$ 390
Tue 7/45:00 p.m.
DCA
-
LAS
2 stops18h 25m
Alaska Airlines
Wed 15/410:33 a.m.
LAS
-
DCA
1 stop7h 27m
Alaska Airlines
Deal found 28/1C$ 407
Thu 26/35:15 p.m.
DCA
-
LAS
1 stop8h 49m
JetBlue
Mon 30/310:10 p.m.
LAS
-
DCA
1 stop9h 50m
JetBlue
Deal found 27/1C$ 413
Thu 9/46:30 p.m.
DCA
-
LAS
1 stop8h 34m
JetBlue
Tue 21/49:50 p.m.
LAS
-
DCA
1 stop10h 20m
JetBlue
Deal found 28/1C$ 417
Tue 24/28:00 a.m.
DCA
-
LAS
2 stops8h 25m
Southwest
Tue 3/38:15 a.m.
LAS
-
DCA
1 stop7h 45m
Southwest
Deal found 28/1C$ 418
Fri 20/35:15 p.m.
DCA
-
LAS
1 stop8h 49m
JetBlue
Wed 25/310:10 p.m.
LAS
-
DCA
1 stop8h 41m
JetBlue
Deal found 27/1C$ 430
Tue 7/45:00 p.m.
DCA
-
LAS
2 stops18h 25m
Alaska Airlines
Tue 21/410:33 a.m.
LAS
-
DCA
1 stop7h 27m
Alaska Airlines
Deal found 28/1C$ 434
Wed 18/28:00 a.m.
DCA
-
LAS
2 stops8h 25m
Southwest
Tue 24/211:35 a.m.
LAS
-
DCA
2 stops7h 45m
Southwest
Deal found 28/1C$ 452

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 29 January 2026.

Round-trip from

C$ 341

One-way from

C$ 171

Popular in

January

Cheapest in

August

Average price

C$ 680
JetBlue
  • JetBlue
  • 4/4-15/4
  • 2 total stops
  • 17h 19m total
  • Washington, D.C. to Las Vegas
Search Deals
JetBlue
  • JetBlue
  • 24/3
  • 1 total stop
  • 8h 49m total
  • Washington, D.C. to Las Vegas
Search Deals
Highest demand for flights based on searches. 8% potential increase in price (C$ 67 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 January 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 29 January 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

Reagan-National

Fly to

Las Vegas

Route

Depart

Return

Price

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Sat 14/3

3:55 p.m.-11:04 p.m.

1 stop10h 09m

Las Vegas Harry Reid Intl

Wed 25/3

10:10 p.m.-9:51 a.m.

1 stop8h 41m

C$ 379

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Sat 6/6

1:25 p.m.-7:42 p.m.

1 stop9h 17m

Las Vegas Harry Reid Intl

Wed 10/6

8:52 p.m.-7:40 a.m.

1 stop7h 48m

C$ 413

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Sat 14/3

3:55 p.m.-11:04 p.m.

1 stop10h 09m

Las Vegas Harry Reid Intl

Thu 19/3

9:00 a.m.-10:59 p.m.

1 stop10h 59m

C$ 413

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Tue 31/3

12:00 p.m.-9:15 p.m.

1 stop12h 15m

Las Vegas Harry Reid Intl

Mon 6/4

10:25 p.m.-11:59 a.m.

1 stop10h 34m

C$ 417

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Thu 9/4

6:30 p.m.-12:04 a.m.

1 stop8h 34m

Las Vegas Harry Reid Intl

Wed 15/4

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

1 stop8h 15m

C$ 417

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Wed 27/5

11:30 a.m.-7:42 p.m.

1 stop11h 12m

Las Vegas Harry Reid Intl

Tue 2/6

8:52 p.m.-11:37 a.m.

1 stop11h 45m

C$ 417

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Wed 20/5

6:00 a.m.-12:31 p.m.

1 stop9h 31m

Las Vegas Harry Reid Intl

Fri 29/5

8:52 p.m.-11:37 a.m.

1 stop11h 45m

C$ 430

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Thu 12/3

5:15 p.m.-11:04 p.m.

1 stop8h 49m

Las Vegas Harry Reid Intl

Tue 17/3

10:10 p.m.-9:51 a.m.

1 stop8h 41m

C$ 430

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Tue 24/2

6:59 p.m.-2:47 p.m.

2 stops22h 48m

Las Vegas Harry Reid Intl

Sat 28/2

8:20 a.m.-9:02 p.m.

1 stop9h 42m

C$ 462

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Wed 15/7

1:25 p.m.-7:42 p.m.

1 stop9h 17m

Las Vegas Harry Reid Intl

Wed 22/7

8:52 p.m.-7:40 a.m.

1 stop7h 48m

C$ 468

Flights are sorted by cheapest round-trip flights first.

Deals found on 28/1

Showing 1-10 of 23 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 23 January 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 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, March is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Las Vegas (average of C$ 206). Flying from Washington, D.C. Reagan-National Airport to Las Vegas in December is currently the most expensive (average of C$ 322). 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 29 January 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 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$ 375, JetBlue can have you in Las Vegas from Washington, D.C. Reagan-National Airport in 9h 15m. 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, March is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Las Vegas (average of C$ 206). Flying from Washington, D.C. Reagan-National Airport to Las Vegas in December is currently the most expensive (average of C$ 322). 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

Travelling to a place near Las Vegas?

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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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