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Cheap flights from Washington, D.C. to Las Vegas from $135

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 28/8. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — LAS
10 Sep — 17 Sep1
1 adult
1 adult, Economy, 0 bags

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

Enter your travel dates to find the best prices.

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 11 August 2026.

Fri 28/818:00 -
Nonstop5h 08m
Mon 31/823:57 -
Nonstop4h 33m
Deal found 7/8$268
Fri 28/818:00 -
Nonstop5h 08m
Tue 1/908:20 -
Nonstop4h 38m
Deal found 8/8$310
Tue 25/808:31 -
1 stop7h 44m
Tue 1/908:20 -
Nonstop4h 38m
Deal found 8/8$319
Thu 27/817:26 -
1 stop7h 33m
Mon 31/823:57 -
Nonstop4h 33m
Deal found 6/8$324
Tue 1/908:31 -
1 stop7h 44m
Wed 9/911:51 -
1 stop6h 17m
Deal found 10/8$327
Tue 1/908:31 -
1 stop7h 44m
Wed 2/913:38 -
1 stop6h 41m
Deal found 10/8$331
Sat 7/1117:40 -
Nonstop5h 18m
Tue 10/1107:45 -
Nonstop4h 28m
Deal found 10/8$344
Sat 24/1018:00 -
Nonstop5h 08m
Fri 30/1023:50 -
Nonstop4h 22m
Deal found 10/8$348
Sat 24/1016:02 -
1 stop7h 26m
Sat 31/1007:45 -
Nonstop4h 28m
Deal found 7/8$361

Find 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 11 August 2026.

Round-trip from

$268

One-way from

$135

Popular in

March

Cheapest in

August

Average price

$425
United Airlines
  • United Airlines
  • 28/8-31/8
  • Nonstop
  • 9h 41m total
  • Washington, D.C. to Las Vegas
Search Deals
United Airlines
  • United Airlines
  • 28/8
  • Nonstop
  • 5h 08m total
  • Washington, D.C. to Las Vegas
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($112 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($17 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2026
Search Deals

Cheapflights Fare Finder

 
Customise 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 647,157 searches. Data last updated 11 August 2026.
Use the filters below to find and compare flights from Washington, D.C. to Las Vegas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Washington, D.C.Las Vegas

IAD Washington, D.C. Dulles Intl - LAS Las Vegas Harry Reid Intl

IADLAS

Washington, D.C. Dulles Intl

Mon 31/8

12:55-14:59

Nonstop5h 04m

Las Vegas Harry Reid Intl

Tue 1/9

08:20-15:58

Nonstop4h 38m

$268
Fastest return journey

Washington, D.C.Las Vegas

IAD Washington, D.C. Dulles Intl - LAS Las Vegas Harry Reid Intl

IADLAS

Washington, D.C. Dulles Intl

Sat 22/8

09:00-11:04

Nonstop5h 04m

Las Vegas Harry Reid Intl

Sat 29/8

23:57-07:30

Nonstop4h 33m

$310

Washington, D.C.Las Vegas

IAD Washington, D.C. Dulles Intl - LAS Las Vegas Harry Reid Intl

IADLAS

Washington, D.C. Dulles Intl

Wed 26/8

06:00-10:50

1 stop7h 50m

Las Vegas Harry Reid Intl

Sat 29/8

06:00-16:42

1 stop7h 42m

$372

Washington, D.C.Las Vegas

IAD Washington, D.C. Dulles Intl - LAS Las Vegas Harry Reid Intl

IADLAS

Washington, D.C. Dulles Intl

Fri 28/8

17:47-23:10

1 stop8h 23m

Las Vegas Harry Reid Intl

Mon 31/8

13:20-00:34

1 stop8h 14m

$372

Washington, D.C.Las Vegas

IAD Washington, D.C. Dulles Intl - LAS Las Vegas Harry Reid Intl

IADLAS

Washington, D.C. Dulles Intl

Tue 8/9

17:15-21:05

1 stop6h 50m

Las Vegas Harry Reid Intl

Fri 11/9

23:01-10:03

1 stop8h 02m

$377

Washington, D.C.Las Vegas

IAD Washington, D.C. Dulles Intl - LAS Las Vegas Harry Reid Intl

IADLAS

Washington, D.C. Dulles Intl

Fri 21/8

06:30-10:49

1 stop7h 19m

Las Vegas Harry Reid Intl

Sat 22/8

23:55-09:28

1 stop6h 33m

$381

Washington, D.C.Las Vegas

IAD Washington, D.C. Dulles Intl - LAS Las Vegas Harry Reid Intl

IADLAS

Washington, D.C. Dulles Intl

Tue 25/8

17:25-21:11

1 stop6h 46m

Las Vegas Harry Reid Intl

Fri 28/8

22:00-10:04

1 stop9h 04m

$381

Washington, D.C.Las Vegas

IAD Washington, D.C. Dulles Intl - LAS Las Vegas Harry Reid Intl

IADLAS

Washington, D.C. Dulles Intl

Wed 2/12

17:16-21:13

1 stop6h 57m

Las Vegas Harry Reid Intl

Tue 8/12

07:00-17:28

1 stop7h 28m

$381

Washington, D.C.Las Vegas

IAD Washington, D.C. Dulles Intl - LAS Las Vegas Harry Reid Intl

IADLAS

Washington, D.C. Dulles Intl

Tue 22/9

17:15-21:05

1 stop6h 50m

Las Vegas Harry Reid Intl

Sat 26/9

07:05-17:46

1 stop7h 41m

$381

Washington, D.C.Las Vegas

IAD Washington, D.C. Dulles Intl - LAS Las Vegas Harry Reid Intl

IADLAS

Washington, D.C. Dulles Intl

Thu 12/11

18:20-00:21

1 stop9h 01m

Las Vegas Harry Reid Intl

Fri 13/11

15:07-00:39

1 stop6h 32m

$381

Flights are sorted by cheapest return flights first.

Deals found on 10/8

Showing 1-10 of 22 resultsSorted by cheapest first
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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 return 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

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 $446). Flying from Washington, D.C. to Las Vegas in March is currently the most expensive (average of $773). 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 11 August 2026.

When flying from Washington, D.C. to Las Vegas, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 11 August 2026.

The most flights from WAS to LAS are scheduled on a Monday (11 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (2 on average).

How much does it cost for a return flight from Washington, D.C. to Las Vegas?

Airfare is typical for this route at the moment.
Washington, D.C. to Las Vegas flights typically cost between $256 and $634 in August.
The cheapest return price found within the last 5 days was $268 on United Airlines (28 Aug–31 Aug).

How often are flights from Washington, D.C. to Las Vegas delayed?

About 18% of weekly flights between Washington, D.C. and Las Vegas have experienced delays in the past year, with the average delay time being 171 minutes.

What is the most punctual flight time for Washington, D.C. to Las Vegas flights?

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Saturday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Washington, D.C. to Las Vegas flights?

Over the past year, American Airlines have had the lowest number of delays on this route, with just 8% of flights being delayed.

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

To ensure you get the cheapest price possible for a flight from Washington, D.C. to Las Vegas, you should look to book at least 45 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.

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.?

    For a flight from Washington, D.C. 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 vof the city. Harry Reid Intl is the only Las Vegas airport and it handles 7 inbound flights from Washington, D.C. per day. 0 airlines have flights to Las Vegas Harry Reid Intl from Washington, D.C. on a regular basis.

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

    United Airlines and Delta can get you from Washington, D.C. to Las Vegas in just under 5h 04m. Your travel time can differ by up to 2h 46m. Washington, D.C. and Las Vegas are separated by a distance of 3314 km. This flight may include one or multiple stops.

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

    No one likes to see their flight delayed. When booking a flight from Washington, D.C. to Las Vegas consider choosing Ethiopian Air(88%), United Airlines(86%) or Austrian Airlines(71%), as they are the most reliable in getting you off to your destination on time.

  • 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 holiday 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 $446). Flying from Washington, D.C. to Las Vegas in March is currently the most expensive (average of $773). 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?

Book flights to Las Vegas if you plan to visit one of these locations
Paradise
Winchester

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Alternative routes for Washington, D.C. to Las Vegas

See prices for flight routes from nearby airports that may be better suited for you.
Dulles Intl to Las Vegas flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Washington, D.C. to Las Vegas?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Washington, D.C. to Las Vegas. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Washington, D.C. to Las Vegas?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Las Vegas from Washington, D.C..

Can Cheapflights find flights from Washington, D.C. to Las Vegas with no change fees?

Yes, we can. To see specific flights from Washington, D.C. to Las Vegas with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Washington, D.C. to Las Vegas become cheaper?

Yes! Start tracking prices for Washington, D.C. to Las Vegas flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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