Las Vegas

$113+ Cheap flights from Reagan-National (DCA) to Las Vegas (LAS)

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 1/5. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — LAS
Jan 24 — Jan 311
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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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Cheapflights Tip: The best prices from Washington, D.C. Reagan-National to Las Vegas Harry Reid Intl are usually found in August or February, booked 61 days in advance, depart on a Tuesday or Saturday and return on a Saturday

Cheap flight deals from Reagan-National to Las Vegas

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 December 25, 2025.

This Frontier deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:00 pmDCA - LAS
1 stop12h 42mFrontier
Wed 1/712:59 amLAS - DCA
1 stop9h 02mFrontier
Deal found 12/23$253
This CheapOair deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:00 pmDCA - LAS
1 stop12h 42mFrontier
Wed 1/73:33 pmLAS - DCA
1 stop27h 26mFrontier
Deal found 12/24$254
This Frontier deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:00 pmDCA - LAS
1 stop12h 42mFrontier
Sun 1/412:59 amLAS - DCA
1 stop9h 02mFrontier
Deal found 12/24$274
This Kiwi.com deal was found by Cheapflights users on 12/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:00 pmDCA - LAS
1 stop12h 42mFrontier
Tue 1/68:41 pmLAS - DCA
2 stops22h 18mFrontier
Deal found 12/22$285
This Frontier deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:00 pmDCA - LAS
1 stop12h 42mFrontier
Sat 1/1012:59 amLAS - DCA
1 stop9h 02mFrontier
Deal found 12/23$288
This Expedia deal was found by Cheapflights users on 12/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/258:00 amDCA - LAS
1 stop27h 05mFrontier
Wed 12/3112:59 amLAS - DCA
1 stop9h 02mFrontier
Deal found 12/23$304
This CheapOair deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/256:00 pmDCA - LAS
1 stop17h 05mFrontier
Wed 1/73:33 pmLAS - DCA
1 stop18h 28mFrontier
Deal found 12/24$313
This Kiwi.com deal was found by Cheapflights users on 12/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/272:00 pmDCA - LAS
1 stop8h 30mFrontier
Sat 1/107:00 amLAS - DCA
1 stop6h 59mFrontier
Deal found 12/24$317

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 December 25, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$238
(Frontier)

One-way from

$113
(CheapOair)

Popular in

December

Cheapest in

August

Average price

$481

Good round-trip deal

$431 or less

Good one-way deal

$205 or less
Provider with most accurate pricing for Washington, D.C. Reagan-National-Las Vegas Harry Reid Intl flight deals.
Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-Las Vegas Harry Reid Intl flights.
From Washington, D.C. Reagan-National to Las Vegas Harry Reid Intl
One-way flight from Washington, D.C. Reagan-National to Las Vegas Harry Reid Intl
Highest demand for flights based on searches. 4% potential increase in price ($19 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Average for round-trip flights in December 2025
Price to beat on a round-trip flight from Washington, D.C. Reagan-National to Las Vegas Harry Reid Intl.
Price to beat on a one-way flight from Washington, D.C. Reagan-National to Las Vegas Harry Reid Intl.

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 2,558,603 searches. Data last updated December 25, 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

Fri 2/6

5:20 pm-11:59 pm

1 stop9h 39m

Las Vegas Harry Reid Intl

Mon 2/9

11:39 pm-1:20 pm

1 stop10h 41m

$279

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Sat 1/24

5:09 pm-9:36 am

2 stops19h 27m

Las Vegas Harry Reid Intl

Tue 1/27

3:58 pm-4:01 pm

2 stops21h 03m

$295

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Fri 1/16

5:20 pm-11:59 pm

1 stop9h 39m

Las Vegas Harry Reid Intl

Mon 1/19

11:39 pm-1:20 pm

1 stop10h 41m

$304

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Sun 1/18

8:59 am-3:35 pm

1 stop9h 36m

Las Vegas Harry Reid Intl

Tue 1/27

5:42 pm-8:00 pm

2 stops23h 18m

$305

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Fri 3/20

3:55 pm-10:48 pm

1 stop9h 53m

Las Vegas Harry Reid Intl

Mon 3/23

10:00 pm-9:56 am

1 stop8h 56m

$307

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Mon 2/2

5:01 pm-1:24 pm

1 stop23h 23m

Las Vegas Harry Reid Intl

Wed 2/4

3:58 pm-4:01 pm

2 stops21h 03m

$310

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Mon 2/9

9:59 am-11:12 pm

2 stops16h 13m

Las Vegas Harry Reid Intl

Thu 2/12

8:20 am-9:02 pm

1 stop9h 42m

$311

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Wed 2/11

8:59 am-4:34 pm

1 stop10h 35m

Las Vegas Harry Reid Intl

Sun 2/15

6:00 am-9:59 pm

1 stop12h 59m

$330

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Sat 2/7

6:05 am-2:10 pm

2 stops11h 05m

Las Vegas Harry Reid Intl

Fri 2/13

12:25 pm-10:30 pm

1 stop7h 05m

$332

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Wed 1/14

6:10 am-12:35 pm

1 stop9h 25m

Las Vegas Harry Reid Intl

Wed 1/21

9:05 am-4:35 pm

Nonstop4h 30m

$342

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/24

Showing 1-10 of 22 results
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Compare providers for flights from Reagan-National to Las Vegas

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Reagan-National to Las Vegas in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
JustAirTicketPrice Accuracy-Trust Score*1 star
OvagoPrice Accuracy2 starsTrust Score*2 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Las Vegas flights, users find the pricing of CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on Washington, D.C. Reagan-National Airport-Las Vegas flight deals on Cheapflights vs. CheapOair >95% of the time. Price accuracy is based on data collected from Washington, D.C. Reagan-National Airport-Las Vegas flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Las Vegas flights, Cheapflights users trust CheapOair the most. CheapOair has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Reagan-National Airport-Las Vegas flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 December 19, 2025.

The best time to book flights from Washington, D.C. Reagan-National Airport to Las Vegas is 61 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 $138). Flying from Washington, D.C. Reagan-National Airport to Las Vegas in December is currently the most expensive (average of $239). 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 December 25, 2025.

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. Reagan-National Airport to Las Vegas at noon. If you’re flexible enough to do this you can expect to save up to 34% on your trip compared to booking a flight in the afternoon.

What is the cheapest day to fly from Washington, D.C. Reagan-National Airport to Las Vegas?

Use this chart to determine the cheapest time to fly round-trip from Reagan-National to Las Vegas. Price data was last updated on December 20, 2025.

Travelers seeking maximum savings on their Washington, D.C. Reagan-National Airport to Las Vegas flight should consider departing on Saturday at noon when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Las Vegas

Get insights into the airlines that provide service to Las Vegas. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Las Vegas. Reviews last updated December 25, 2025.
Read through reviews of airlines operating flights from Washington, D.C. Reagan-National Airport to Las Vegas, such as Southwest, Delta, and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Overall

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Overall

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Overall

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Overall

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Overall

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Overall

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Comfort

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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?

    Las Vegas Harry Reid Intl (LAS) is the airport you will fly into if you book a flight from Washington, D.C. Reagan-National to Las Vegas. You should not have trouble finding flights to Harry Reid Intl from Washington, D.C. Reagan-National; the airport handles an average of 1 inbound flight from Washington, D.C. Reagan-National per day. You should also have plenty of airline options to choose from since 8 airlines have flights to the Las Vegas airport from Washington, D.C. Reagan-National. It is only a 6.2 mi journey from Harry Reid Intl (LAS) to Las Vegas’s city center.

  • How long is the flight from Washington, D.C. Reagan-National Airport to Las Vegas?

    JetBlue and Alaska Airlines can get you from Washington, D.C. Reagan-National Airport to Las Vegas in just under 9h 39m. Your travel time can differ by up to 9h 48m. The distance between Washington, D.C. Reagan-National Airport and Las Vegas is about 2082 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Washington, D.C. Reagan-National Airport to Las Vegas round-trip?

    According to our current data, Spirit Airlines ($117), Frontier ($130), and Alaska Airlines ($188) offers the cheapest pricing from Washington, D.C. Reagan-National Airport to Las Vegas. You may be able to fly from Washington, D.C. Reagan-National Airport to Las Vegas for 71% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Washington, D.C. Reagan-National Airport to Las Vegas one-way?

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $72. JetBlue flights start at $108 while deals on American Airlines start at $114 one-way.

  • What are the cheapest flights from Washington, D.C. Reagan-National Airport to Las Vegas?

    On average you can expect to pay $386 for a flight from Washington, D.C. Reagan-National Airport to Las Vegas. The cheapest flight overall is $107 while the most popular route, (Washington, D.C. Reagan-National - Las Vegas Harry Reid Intl) is currently priced at $147.

  • 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 $138). Flying from Washington, D.C. Reagan-National Airport to Las Vegas in December is currently the most expensive (average of $239). 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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Top 8 airlines flying from Reagan-National to Las Vegas

Discover the top 8 airlines that operate flights from Reagan-National to Las Vegas. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 25, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$119Average$236FlexibilityNo cancel feeOn-time65%
FrontierCheapest$132Average$255FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$188Average$397FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$237Average$409FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$239Average$464FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$248Average$461FlexibilityNo cancel feeOn-time71%
JetBlueCheapest$254Average$386FlexibilityNo cancel feeOn-time62%
DeltaCheapest$256Average$333FlexibilityNo cancel feeOn-timeN/A

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