Las Vegas

$55+ Cheap flights from Washington, D.C. (WAS) 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 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — LAS
Jul 23 — Jul 301
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Cheapflights Tip: The best prices from Washington, D.C. to Las Vegas Harry Reid Intl are usually found in July or June, booked 28 days in advance, depart on a Tuesday or Saturday and return on a Thursday

Cheap flight deals from Washington, D.C. to Las Vegas

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) 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 July 18, 2025.

Round-trip from

$159
(United Airlines)

One-way from

$55
(Kiwi.com)

Popular in

December

Cheapest in

July

Average price

$314

Good round-trip deal

$196 or less

Good one-way deal

$100 or less
From Washington, D.C. (WAS) to Las Vegas Harry Reid Intl
One-way flight from Washington, D.C. (WAS) to Las Vegas Harry Reid Intl
Highest demand for flights based on searches. 8% potential increase in price ($36 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 July 2025
Price to beat on a round-trip flight from Washington, D.C. (WAS) to Las Vegas Harry Reid Intl.
Price to beat on a one-way flight from Washington, D.C. (WAS) to Las Vegas Harry Reid Intl.

Find flight deals from Washington, D.C. to Las Vegas

Cheapest flights from Washington, D.C. to Las Vegas
Explore the most affordable flight options available from Washington, D.C. to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 18, 2025.

This United Airlines deal was found by Cheapflights users on 7/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/68:21 amIAD - LAS
Nonstop5h 13mUnited Airlines
Sat 12/61:50 pmLAS - IAD
Nonstop4h 20mUnited Airlines
Deal found 7/17$154
This Southwest deal was found by Cheapflights users on 7/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/84:55 pmDCA - LAS
Nonstop5h 00mSouthwest
Tue 9/99:15 amLAS - DCA
Nonstop4h 35mSouthwest
Deal found 7/16$159
This Cheapflightsfares deal was found by Cheapflights users on 7/15. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/37:30 amIAD - LAS
Nonstop4h 59mFrontier
Tue 8/511:00 pmLAS - IAD
Nonstop4h 34mFrontier
Deal found 7/15$160
This FlightHub deal was found by Cheapflights users on 7/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/238:09 amBWI - LAS
Nonstop5h 06mSpirit Airlines
Sun 8/2412:58 amLAS - BWI
1 stop19h 01mSpirit Airlines
Deal found 7/17$168
This American Airlines deal was found by Cheapflights users on 7/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/269:30 amDCA - LAS
Nonstop4h 54mAmerican Airlines
Wed 8/2711:44 amLAS - DCA
Nonstop4h 46mAmerican Airlines
Deal found 7/16$169
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 9/89:59 amDCA - LAS
1 stop9h 35mHawaiian Airlines
Fri 9/1210:33 amLAS - DCA
1 stop8h 26mHawaiian Airlines
Deal found 7/15$186
This Hawaiian Airlines deal was found by Cheapflights users on 7/15. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/165:40 pmIAD - LAS
1 stop8h 53mHawaiian Airlines
Wed 11/197:25 amLAS - IAD
1 stop6h 48mHawaiian Airlines
Deal found 7/15$200
This Alaska Airlines deal was found by Cheapflights users on 7/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/259:59 amDCA - LAS
1 stop9h 35mAlaska Airlines
Fri 8/299:52 pmLAS - DCA
1 stop17h 07mAlaska Airlines
Deal found 7/14$201
This JetBlue Airways deal was found by Cheapflights users on 7/17. 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 JetBlue Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/43:40 pmDCA - LAS
1 stop9h 39mJetBlue
Tue 12/910:10 pmLAS - DCA
1 stop9h 52mJetBlue
Deal found 7/17$209
This Trip.com deal was found by Cheapflights users on 7/16. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/111:45 pmDCA - LAS
1 stop7h 39mDelta
Fri 10/1712:45 amLAS - DCA
1 stop6h 50mDelta
Deal found 7/16$253
This Trip.com deal was found by Cheapflights users on 7/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/156:00 pmDCA - LAS
1 stop8h 34mMultiple Airlines
Wed 8/2010:17 amLAS - DCA
1 stop8h 42mMultiple Airlines
Deal found 7/15$261
This Priceline deal was found by Cheapflights users on 7/14. 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.
Wed 8/137:00 amDCA - LAS
1 stop7h 02mFrontier
Tue 8/1912:59 amLAS - DCA
1 stop8h 12mFrontier
Deal found 7/14$266

Cheapflights Fare Finder

Customize your flight search to find flights from Washington, D.C. 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 July 18, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Las Vegas that are best for you.

Fly from

Washington, D.C.

Fly to

Las Vegas

Route

Depart

Return

Price

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sat 8/16

5:55 pm-7:59 pm

Nonstop5h 04m

Las Vegas Harry Reid Intl

Tue 8/19

10:45 pm-6:20 am

Nonstop4h 35m

$159

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Mon 9/8

4:55 pm-6:55 pm

Nonstop5h 00m

Las Vegas Harry Reid Intl

Sat 9/13

8:00 am-3:35 pm

Nonstop4h 35m

$159

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sun 8/3

7:30 am-9:29 am

Nonstop4h 59m

Las Vegas Harry Reid Intl

Tue 8/5

11:00 pm-6:34 am

Nonstop4h 34m

$160

BaltimoreLas Vegas

BWI - LAS

BWILAS

Baltimore/Washington

Sat 8/23

8:09 am-10:15 am

Nonstop5h 06m

Las Vegas Harry Reid Intl

Sun 8/24

12:58 am-10:59 pm

1 stop19h 01m

$168

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Tue 8/26

9:30 am-11:24 am

Nonstop4h 54m

Las Vegas Harry Reid Intl

Wed 8/27

11:44 am-7:30 pm

Nonstop4h 46m

$169

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Mon 9/8

9:59 am-4:34 pm

1 stop9h 35m

Las Vegas Harry Reid Intl

Fri 9/12

10:33 am-9:59 pm

1 stop8h 26m

$186

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Mon 8/25

9:59 am-4:34 pm

1 stop9h 35m

Las Vegas Harry Reid Intl

Fri 8/29

9:52 pm-5:59 pm

1 stop17h 07m

$201

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Sat 10/11

1:45 pm-6:24 pm

1 stop7h 39m

Las Vegas Harry Reid Intl

Fri 10/17

12:45 am-10:35 am

1 stop6h 50m

$253

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Fri 8/15

6:00 pm-11:34 pm

1 stop8h 34m

Las Vegas Harry Reid Intl

Wed 8/20

10:17 am-9:59 pm

1 stop8h 42m

$261

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Wed 8/13

7:00 am-11:02 am

1 stop7h 02m

Las Vegas Harry Reid Intl

Tue 8/19

12:59 am-12:11 pm

1 stop8h 12m

$266

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/14

Showing 1-10 of 28 results
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The best insider tips for Washington, D.C. to Las Vegas flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Washington, D.C. to Las Vegas trip
Airports
IAD

At IAD, check-in can be crowded in the afternoon and evening. Arrive early to navigate the busy main terminal efficiently.

Read more about IADby Ramsey Qubein
LAS

For a quick exit from LAS, rideshares pick up in the parking garage. Request your ride only when near the garage to avoid long waits.

Read more about LASby Ramsey Qubein
Our travel experts
Ramsey Qubein

Ramsey Qubein

Expert on IAD and LAS

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more

Best time to book a flight from Washington, D.C. to Las Vegas

Have a flexible travel schedule? Discover the best time to fly to Las Vegas from Washington, D.C. 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. to Las Vegas

How far ahead should I book a flight from Washington, D.C. to Las Vegas?

Use this chart to determine the optimal time to book a round-trip flight from Washington, D.C. to Las Vegas. Price data was last updated on July 11, 2025.

Booking 28 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. to Las Vegas. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Washington, D.C. to Las Vegas?

Currently, August is the cheapest month in which you can book a flight from Washington, D.C. to Las Vegas (average of $198). Flying from Washington, D.C. 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 WAS to LAS?

Find hourly flight availability from Washington, D.C. 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 July 18, 2025.

A simple way to save on the total cost of your ticket is to fly from Washington, D.C. to Las Vegas in the morning. If you’re flexible enough to do this you can expect to save up to 14% on your trip compared to booking a flight in the afternoon.

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

Use this chart to determine the cheapest time to fly round-trip from Washington, D.C. to Las Vegas. Price data was last updated on July 13, 2025.

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

Weekly flight availability from Washington, D.C. to Las Vegas

Explore weekly flight availability from Washington, D.C. to Las Vegas. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 18, 2025.

The most flights from WAS to LAS are scheduled on a Thursday (12 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (4 on average).

How much does it cost to fly round-trip from Washington, D.C. to Las Vegas?

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 July 18, 2025.
Get a feel of what it's like to fly with Alaska Airlines, Southwest, and Delta from Washington, D.C. to Las Vegas by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.
8.0
Very good

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

EUG - SEA

Mobility support was fabulous No flight entertainment that I was aware of.

Related info for your journey

Find useful and relevant information for your journey from Washington, D.C. 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.?

    If you book a flight to Las Vegas from Washington, D.C., you will be flying to Harry Reid Intl, which is the city’s only airport. Las Vegas Harry Reid Intl (LAS) is located 6.2 mi from the center of Las Vegas. There are 8 flights from Washington, D.C. to Harry Reid Intl per day from 9 different airlines.

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

    United Airlines, at $159, was found to be the cheapest airline from Washington, D.C. to Las Vegas.Alternate airlines to your destination round-trip include Southwest and Spirit Airlines. United Airlines is priced at 57% lower than the current average price of a flight leaving 3 months from now.

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

    To fly one-way, consider booking your trip with Spirit Airlines, which is currently one of the cheapest options available, starting at $55. United Airlines flights start at $80 while deals on Southwest start at $80 one-way.

  • What are the most popular routes from Washington, D.C. to Las Vegas?

  • What are the most reliable airlines from Washington, D.C. to Las Vegas?

    The top 3 most reliable airlines when flying from Washington, D.C. to Las Vegas are Frontier (75%), Ethiopian Air (69%) and Brussels Airlines (52%).

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

    Looking at all options, your cheapest flight can be booked for $79. While the most popular route (Washington, D.C. Dulles Intl - Las Vegas Harry Reid Intl) can be booked for $159 on average our data indicates $985 when flying from Washington, D.C. to Las Vegas.

  • Where are the most common layover locations when flying from Washington, D.C. to Las Vegas?

  • What are some popular things to do or see while on a layover in Denver?

    The majority of Denver visitors spend their time at Coors Field, 16th Street Mall, and Civic Center Park. Those on a layover in Denver interested in visiting Coors Field, 16th Street Mall, or Civic Center Park can do so by traveling 18.4 mi, 18.7 mi, and 18.7 mi, respectively from Denver Intl. Those looking to explore during their layover in Denver can rent a car from Denver Intl for about $64 per day.

  • What are some popular points of interest to see during a layover in Charlotte?

    If you're on a layover in Charlotte and looking for things to do, consider visiting Carowind, Mint Museum Uptown, or NASCAR Hall of Fame. Carowind, Mint Museum Uptown, and NASCAR Hall of Fame are located about 8.2 mi, 5.4 mi, and 5.7 mi, respectively from Charlotte Douglas. Travelers in need of a car in Charlotte can rent one for about $46 per day.

  • Where are the least popular layover locations for Washington, D.C. to Las Vegas flights?

  • Can I find deals for flights from Washington, D.C. to Las Vegas that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Las Vegas flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Las Vegas?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Washington, D.C. to Las Vegas.

  • Can I find deals for business class flights from Washington, D.C. to Las Vegas?

    Yes. Cheapflights offers flight deals from Washington, D.C. 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. to Las Vegas?

    Currently, August is the cheapest month in which you can book a flight from Washington, D.C. to Las Vegas (average of $198). Flying from Washington, D.C. 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
Henderson
Paradise
Sunrise Manor
North Las Vegas
Winchester
Primm
Mount Charleston
Kingman
Mesquite
Needles
Boulder City

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Top 9 airlines flying from Washington, D.C. to Las Vegas

Discover the top 9 airlines that operate flights from Washington, D.C. 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 July 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$117Average$271FlexibilityNo cancel feeOn-time65%
FrontierCheapest$118Average$217FlexibilityNo cancel feeOn-time62%
JetBlueCheapest$243Average$336FlexibilityNo cancel feeOn-time62%
DeltaCheapest$256Average$386FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$256Average$479FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$256Average$487FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$257Average$315FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$289Average$510FlexibilityNo cancel feeOn-time71%
Sun Country AirCheapest$290Average$372FlexibilityNo cancel feeOn-time83%

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