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$93+ 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 12/9. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — LAS
oct. 19 — oct. 261
dim. 10/19
dim. 10/26
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 Wednesday

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 septembre 19, 2025.

Round-trip from

$163
(American Airlines)

One-way from

$93
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$402

Good round-trip deal

$324 or less

Good one-way deal

$146 or less
From Washington, D.C. Reagan-National to Las Vegas Harry Reid Intl
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One-way flight from Washington, D.C. Reagan-National to Las Vegas Harry Reid Intl
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Highest demand for flights based on searches. 3% potential increase in price ($12 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Washington, D.C. Reagan-National to Las Vegas Harry Reid Intl.
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Price to beat on a one-way flight from Washington, D.C. Reagan-National to Las Vegas Harry Reid Intl.
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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 septembre 19, 2025.

This Priceline deal was found by Cheapflights users on 9/17. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/207:00 amDCA - LAS
1 stop8h 07mFrontier
mar. 10/2112:59 amLAS - DCA
1 stop8h 05mFrontier
Deal found 9/17$167
This Mytrip deal was found by Cheapflights users on 9/17. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 11/16:00 pmDCA - LAS
1 stop8h 29mFrontier
ven. 11/712:59 amLAS - DCA
1 stop8h 02mFrontier
Deal found 9/17$169
This Kiwi.com deal was found by Cheapflights users on 9/18. 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.
sam. 10/187:00 amDCA - LAS
2 stops13h 13mFrontier
ven. 10/2412:59 amLAS - DCA
1 stop13h 00mFrontier
Deal found 9/18$189
This CheapOair deal was found by Cheapflights users on 9/17. 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.
sam. 9/276:00 pmDCA - LAS
1 stop17h 02mFrontier
mer. 10/112:59 amLAS - DCA
1 stop8h 11mFrontier
Deal found 9/17$190
This Priceline deal was found by Cheapflights users on 9/17. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 10/117:00 amDCA - LAS
1 stop11h 29mFrontier
sam. 10/188:00 amLAS - DCA
1 stop10h 59mFrontier
Deal found 9/17$191
This Kiwi.com deal was found by Cheapflights users on 9/18. 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.
sam. 12/67:00 amDCA - LAS
2 stops17h 25mFrontier
mar. 12/912:59 amLAS - DCA
1 stop18h 00mFrontier
Deal found 9/18$193
This CheapOair deal was found by Cheapflights users on 9/17. 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.
jeu. 11/136:00 pmDCA - LAS
1 stop17h 02mFrontier
lun. 11/178:48 pmLAS - DCA
1 stop22h 11mFrontier
Deal found 9/17$195
This CheapOair deal was found by Cheapflights users on 9/17. 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.
jeu. 10/302:00 pmDCA - LAS
1 stop12h 29mFrontier
ven. 10/319:12 amLAS - DCA
1 stop9h 47mFrontier
Deal found 9/17$198
This CheapOair deal was found by Cheapflights users on 9/17. 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.
mer. 10/298:00 amDCA - LAS
1 stop18h 29mFrontier
sam. 11/112:59 amLAS - DCA
1 stop9h 05mFrontier
Deal found 9/17$199
This Kiwi.com deal was found by Cheapflights users on 9/16. 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.
sam. 10/186:31 pmDCA - LAS
1 stop7h 58mFrontier
mer. 10/2212:59 amLAS - DCA
1 stop8h 05mFrontier
Deal found 9/16$204
This CheapOair deal was found by Cheapflights users on 9/17. 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.
lun. 10/66:31 pmDCA - LAS
1 stop16h 31mFrontier
mer. 10/810:12 amLAS - DCA
1 stop8h 47mFrontier
Deal found 9/17$205

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 septembre 19, 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

dim. 12/7

8:59 am-3:22 pm

1 stop9h 23m

Las Vegas Harry Reid Intl

jeu. 12/11

7:00 am-5:59 pm

1 stop7h 59m

$216

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

mer. 11/12

8:59 am-2:12 pm

1 stop8h 13m

Las Vegas Harry Reid Intl

sam. 11/15

7:00 am-5:58 pm

1 stop7h 58m

$226

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

mer. 10/22

11:45 am-3:25 pm

1 stop6h 40m

Las Vegas Harry Reid Intl

mar. 10/28

8:55 am-4:25 pm

Nonstop4h 30m

$233

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

mar. 10/28

11:45 am-3:25 pm

1 stop6h 40m

Las Vegas Harry Reid Intl

sam. 11/8

11:35 am-7:00 pm

Nonstop4h 25m

$233

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

mar. 10/21

4:00 pm-6:15 pm

Nonstop5h 15m

Las Vegas Harry Reid Intl

mer. 10/22

8:30 am-6:10 pm

1 stop6h 40m

$237

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

mer. 11/12

1:15 pm-6:50 pm

1 stop8h 35m

Las Vegas Harry Reid Intl

sam. 11/15

11:35 am-7:00 pm

Nonstop4h 25m

$237

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

mar. 12/16

8:59 am-2:17 pm

1 stop8h 18m

Las Vegas Harry Reid Intl

mer. 12/17

10:25 am-9:02 pm

1 stop7h 37m

$257

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

ven. 12/12

4:35 pm-9:00 pm

1 stop7h 25m

Las Vegas Harry Reid Intl

lun. 12/15

11:35 pm-10:35 am

1 stop8h 00m

$257

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

lun. 10/20

8:59 am-4:09 pm

1 stop10h 10m

Las Vegas Harry Reid Intl

mar. 10/28

10:21 am-9:05 pm

1 stop7h 44m

$267

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

mar. 10/21

8:59 am-4:09 pm

1 stop10h 10m

Las Vegas Harry Reid Intl

jeu. 10/30

10:21 am-9:05 pm

1 stop7h 44m

$267

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

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 September 12, 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, August is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Las Vegas (average of $198). Flying from Washington, D.C. Reagan-National Airport to Las Vegas in March is currently the most expensive (average of $269). 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 septembre 19, 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 September 14, 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 septembre 19, 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
4,242 reviews

Boarding

8.1

Crew

8.6

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

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
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Crew

8.6

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

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
8.0
Very good
7,964 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Crew

8.6

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

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
8,926 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Crew

8.6

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

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
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Crew

8.6

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

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
3,171 reviews
Southwest
8.0
Very good
4,242 reviews

Boarding

8.1

Crew

8.6

Comfort

8.0

Entertainment

7.5

Overall

8.0

Food

7.0

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 3 inbound flights 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?

    Alaska Airlines and Southwest can get you from Washington, D.C. Reagan-National Airport to Las Vegas in just under 6h 40m. Your travel time can differ by up to 2h 43m. 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 ($138), 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 69% 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 Southwest, which is currently one of the cheapest options available, starting at $119. Delta flights start at $129 while deals on Hawaiian Airlines start at $134 one-way.

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

    On average you can expect to pay $324 for a flight from Washington, D.C. Reagan-National Airport to Las Vegas. The cheapest flight overall is $103 while the most popular route, (Washington, D.C. Reagan-National - Las Vegas Harry Reid Intl) is currently priced at $167.

  • 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 $198). Flying from Washington, D.C. Reagan-National Airport to Las Vegas in March is currently the most expensive (average of $269). 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 septembre 19, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$126Average$283FlexibilityNo cancel feeOn-time65%
FrontierCheapest$138Average$257FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$240Average$456FlexibilityNo cancel feeOn-time63%
JetBlueCheapest$253Average$366FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$254Average$437FlexibilityNo cancel feeOn-time69%
DeltaCheapest$256Average$333FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$273Average$475FlexibilityNo cancel feeOn-time71%

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