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$105+ 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 2/20. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — LAS
Dec 8 — Dec 151
Mon 12/8
Mon 12/15
1 adult, Economy
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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 November, booked 61 days in advance, depart on a Tuesday or Saturday and return on a Saturday

Find 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 November 8, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/6. 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.
Tue 12/168:00 amDCA - LAS
2 stops14h 56mFrontier
Wed 12/1711:51 amLAS - DCA
1 stop7h 08mFrontier
Deal found 11/6$190
This Kiwi.com deal was found by Cheapflights users on 11/7. 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.
Fri 12/56:00 pmDCA - LAS
2 stops25h 48mFrontier
Wed 12/107:24 pmLAS - DCA
1 stop14h 42mFrontier
Deal found 11/7$193
This Kiwi.com deal was found by Cheapflights users on 11/7. 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.
Fri 11/212:00 pmDCA - LAS
2 stops35h 12mMultiple Airlines
Thu 11/2712:59 amLAS - DCA
1 stop9h 04mMultiple Airlines
Deal found 11/7$194
This Kiwi.com deal was found by Cheapflights users on 11/6. 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.
Fri 12/56:00 pmDCA - LAS
2 stops25h 48mFrontier
Mon 12/812:59 amLAS - DCA
1 stop9h 07mFrontier
Deal found 11/6$195
This Kiwi.com deal was found by Cheapflights users on 11/7. 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.
Tue 12/28:00 amDCA - LAS
1 stop26h 39mFrontier
Sat 12/66:45 pmLAS - DCA
2 stops19h 14mFrontier
Deal found 11/7$196
This Kiwi.com deal was found by Cheapflights users on 11/6. 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 12/68:00 amDCA - LAS
2 stops14h 56mFrontier
Wed 12/107:24 pmLAS - DCA
1 stop14h 42mFrontier
Deal found 11/6$197
This Kiwi.com deal was found by Cheapflights users on 11/6. 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.
Thu 12/112:00 pmDCA - LAS
2 stops29h 48mFrontier
Mon 12/1512:59 amLAS - DCA
1 stop9h 07mFrontier
Deal found 11/6$199
This CheapOair deal was found by Cheapflights users on 11/6. 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.
Mon 12/158:00 amDCA - LAS
1 stop29h 41mFrontier
Thu 12/186:00 amLAS - DCA
1 stop28h 01mFrontier
Deal found 11/6$200
This Kiwi.com deal was found by Cheapflights users on 11/5. 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.
Mon 11/246:00 pmDCA - LAS
1 stop8h 36mFrontier
Wed 12/37:24 pmLAS - DCA
1 stop14h 42mFrontier
Deal found 11/5$202
This Kiwi.com deal was found by Cheapflights users on 11/7. 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 12/31:00 pmDCA - LAS
2 stops13h 04mMultiple Airlines
Thu 12/46:00 amLAS - DCA
1 stop7h 59mMultiple Airlines
Deal found 11/7$203
This CheapOair deal was found by Cheapflights users on 11/6. 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.
Sun 12/148:00 amDCA - LAS
1 stop27h 38mFrontier
Sat 12/208:30 pmLAS - DCA
1 stop22h 29mFrontier
Deal found 11/6$204
This Kiwi.com deal was found by Cheapflights users on 11/6. 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.
Mon 12/88:00 amDCA - LAS
2 stops13h 27mFrontier
Fri 12/126:00 amLAS - DCA
1 stop7h 59mFrontier
Deal found 11/6$205

Cheap 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 November 8, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$190
(Kiwi.com)

One-way from

$105
(Trip.com)

Popular in

December

Cheapest in

August

Average price

$357

Good round-trip deal

$380 or less

Good one-way deal

$239 or less
Provider with most accurate pricing for Washington, D.C. Reagan-National-Las Vegas Harry Reid Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-Las Vegas Harry Reid Intl flights.
Search Deals
From Washington, D.C. Reagan-National to Las Vegas Harry Reid Intl
Search Deals
One-way flight from Washington, D.C. Reagan-National to Las Vegas Harry Reid Intl
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($14 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Washington, D.C. Reagan-National to Las Vegas Harry Reid Intl.
Search Deals
Price to beat on a one-way flight from Washington, D.C. Reagan-National to Las Vegas Harry Reid Intl.
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 2,558,603 searches. Data last updated November 8, 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

Sat 1/17

6:00 am-8:25 am

Nonstop5h 25m

Las Vegas Harry Reid Intl

Sun 1/18

9:05 am-4:35 pm

Nonstop4h 30m

$237

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Sat 2/21

4:00 pm-6:25 pm

Nonstop5h 25m

Las Vegas Harry Reid Intl

Sun 2/22

6:00 am-3:15 pm

1 stop6h 15m

$241

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Sat 2/21

3:59 pm-9:58 pm

1 stop8h 59m

Las Vegas Harry Reid Intl

Sun 2/22

11:59 pm-11:59 am

1 stop9h 00m

$245

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Sun 1/25

2:00 pm-6:25 pm

1 stop7h 25m

Las Vegas Harry Reid Intl

Wed 1/28

12:59 am-11:29 am

1 stop7h 30m

$245

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Thu 12/11

12:55 pm-5:20 pm

1 stop7h 25m

Las Vegas Harry Reid Intl

Sat 12/13

6:40 am-6:00 pm

2 stops8h 20m

$250

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Sat 1/31

5:09 pm-9:36 am

2 stops19h 27m

Las Vegas Harry Reid Intl

Fri 2/6

8:00 am-9:59 pm

1 stop10h 59m

$284

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Mon 1/26

5:09 pm-1:24 pm

2 stops23h 15m

Las Vegas Harry Reid Intl

Tue 2/3

8:10 am-9:00 pm

1 stop9h 50m

$284

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Tue 12/2

6:02 am-10:22 am

1 stop7h 20m

Las Vegas Harry Reid Intl

Mon 12/8

11:55 pm-9:10 am

1 stop6h 15m

$288

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Fri 1/23

9:59 am-11:12 pm

2 stops16h 13m

Las Vegas Harry Reid Intl

Sat 1/31

7:05 am-5:56 pm

1 stop7h 51m

$294

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Wed 12/3

7:25 am-1:15 pm

1 stop8h 50m

Las Vegas Harry Reid Intl

Wed 12/3

10:05 pm-10:14 am

1 stop9h 09m

$295

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/7

Showing 1-10 of 19 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 November.
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
OvagoPrice Accuracy2 starsTrust Score*2 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 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 October 31, 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 $148). 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 November 8, 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 33% 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 November 2, 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 November 8, 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.
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Food

7.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Food

7.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
7.9
Good
8,003 reviews
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Food

7.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
9,009 reviews
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Food

7.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,044 reviews
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Food

7.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,116 reviews
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Food

7.0

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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 7 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?

    Southwest and United Airlines can get you from Washington, D.C. Reagan-National Airport to Las Vegas in just under 5h 25m. Your travel time can differ by up to 3h 34m. 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 ($126), Frontier ($131), and Southwest ($240) 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 68% 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 Alaska Airlines, which is currently one of the cheapest options available, starting at $113. Frontier flights start at $117 while deals on United Airlines start at $123 one-way.

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

    On average you can expect to pay $422 for a flight from Washington, D.C. Reagan-National Airport to Las Vegas. The cheapest flight overall is $161 while the most popular route, (Washington, D.C. Reagan-National - Las Vegas Harry Reid Intl) is currently priced at $130.

  • 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 $148). 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

Traveling to a place near Las Vegas?

Book flights to Las Vegas if you plan to visit one of these locations
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Top 7 airlines flying from Reagan-National to Las Vegas

Discover the top 7 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 November 8, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$126Average$238FlexibilityNo cancel feeOn-time65%
FrontierCheapest$131Average$258FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$240Average$468FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$253Average$366FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$254Average$409FlexibilityNo cancel feeOn-time69%
DeltaCheapest$256Average$333FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$261Average$472FlexibilityNo cancel feeOn-time71%

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