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Cheap flights from Washington, D.C. to Las Vegas from £70

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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — LAS
12 Sep — 19 Sep1
1 adult
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Washington, D.C. to Las Vegas Harry Reid Intl are usually found in August or November, booked 23 days in advance, depart on a Tuesday or Monday and return on a Monday

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 13 August 2026.

Tue 1/919:24 -
1 stop7h 28m
Sat 5/906:40 -
1 stop13h 12m
Deal found 11/8£121
Tue 1/907:00 -
1 stop9h 47m
Fri 4/900:57 -
1 stop8h 54m
Deal found 11/8£121
Sat 24/1018:00 -
1 stop8h 31m
Fri 30/1000:59 -
1 stop8h 50m
Deal found 11/8£125
Tue 1/908:59 -
Nonstop4h 55m
Wed 9/907:30 -
1 stop13h 40m
Deal found 10/8£130
Tue 1/908:59 -
Nonstop4h 55m
Thu 10/906:30 -
2 stops14h 40m
Deal found 8/8£132
Mon 31/808:59 -
Nonstop4h 55m
Sat 5/913:40 -
2 stops24h 34m
Deal found 11/8£138
Mon 31/812:55 -
Nonstop5h 04m
Tue 1/908:20 -
Nonstop4h 38m
Deal found 10/8£140
Sat 29/807:00 -
Nonstop5h 10m
Sat 29/800:20 -
1 stop7h 50m
Deal found 7/8£147
Sat 29/807:00 -
Nonstop5h 10m
Tue 1/909:45 -
2 stops8h 10m
Deal found 9/8£151
Fri 28/818:00 -
Nonstop5h 08m
Tue 1/908:20 -
Nonstop4h 38m
Deal found 8/8£162
Tue 22/906:00 -
Nonstop4h 58m
Tue 29/906:30 -
2 stops14h 40m
Deal found 8/8£163
Sat 24/1007:00 -
1 stop11h 18m
Fri 30/1000:59 -
2 stops20h 29m
Deal found 11/8£164

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 13 August 2026.

Round-trip from

£121

One-way from

£70

Popular in

March

Cheapest in

August

Average price

£222
Frontier
  • Frontier
  • 1/9-5/9
  • 2 total stops
  • 20h 40m total
  • Washington, D.C. to Las Vegas
Search Deals
United Airlines
  • United Airlines
  • 1/9
  • Nonstop
  • 5h 04m total
  • Washington, D.C. to Las Vegas
Search Deals
Highest demand for flights based on searches. 10% potential increase in price (£30 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£5 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 858,174 searches. Data last updated 13 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

DCA Washington, D.C. Reagan-National - LAS Las Vegas Harry Reid Intl

DCALAS

Washington, D.C. Reagan-National

Tue 1/9

13:00-18:40

1 stop8h 40m

Las Vegas Harry Reid Intl

Tue 8/9

00:55-12:50

1 stop8h 55m

£175

Washington, D.C.Las Vegas

DCA Washington, D.C. Reagan-National - LAS Las Vegas Harry Reid Intl

DCALAS

Washington, D.C. Reagan-National

Tue 1/9

16:35-22:10

1 stop8h 35m

Las Vegas Harry Reid Intl

Thu 10/9

05:00-14:50

1 stop6h 50m

£177

Washington, D.C.Las Vegas

DCA Washington, D.C. Reagan-National - LAS Las Vegas Harry Reid Intl

DCALAS

Washington, D.C. Reagan-National

Fri 28/8

16:20-19:45

1 stop6h 25m

Las Vegas Harry Reid Intl

Tue 1/9

08:00-18:00

1 stop7h 00m

£177

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

16:15-20:51

1 stop7h 36m

Las Vegas Harry Reid Intl

Fri 11/9

13:23-21:01

Nonstop4h 38m

£192

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

18:00-20:08

Nonstop5h 08m

Las Vegas Harry Reid Intl

Mon 31/8

23:55-09:28

1 stop6h 33m

£192

Washington, D.C.Las Vegas

DCA Washington, D.C. Reagan-National - LAS Las Vegas Harry Reid Intl

DCALAS

Washington, D.C. Reagan-National

Tue 1/9

10:45-16:45

1 stop9h 00m

Las Vegas Harry Reid Intl

Sat 5/9

13:10-20:55

Nonstop4h 45m

£192

Washington, D.C.Las Vegas

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

IADLAS

Washington, D.C. Dulles Intl

Tue 1/9

12:30-17:52

1 stop8h 22m

Las Vegas Harry Reid Intl

Wed 9/9

23:01-09:09

1 stop7h 08m

£192

Washington, D.C.Las Vegas

DCA Washington, D.C. Reagan-National - LAS Las Vegas Harry Reid Intl

DCALAS

Washington, D.C. Reagan-National

Wed 4/11

11:55-16:41

1 stop7h 46m

Las Vegas Harry Reid Intl

Wed 11/11

12:15-22:15

1 stop7h 00m

£195

Washington, D.C.Las Vegas

DCA Washington, D.C. Reagan-National - LAS Las Vegas Harry Reid Intl

DCALAS

Washington, D.C. Reagan-National

Fri 25/9

16:41-22:52

1 stop9h 11m

Las Vegas Harry Reid Intl

Tue 29/9

10:45-22:40

1 stop8h 55m

£197

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

£199

Flights are sorted by cheapest return flights first.

Deals found on 10/8

Showing 1-10 of 60 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 £233). Flying from Washington, D.C. to Las Vegas in March is currently the most expensive (average of £404). 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 13 August 2026.

When flying from Washington, D.C. to Las Vegas, the time of day you fly usually plays a role in the price. Save by searching for a flight at midday, which can drop the price by up to 62% versus a flight in the morning.

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 13 August 2026.

The most flights from WAS to LAS are scheduled on a Tuesday (9 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (4 on average).

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

Airfare is below average for this route at the moment.
Washington, D.C. to Las Vegas flights typically cost between £134 and £332 in September.
The cheapest return price found within the last 5 days was £121 on Frontier (1 Sept–5 Sept).

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?

Booking 45 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.

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 6 flights from Washington, D.C. to Harry Reid Intl per day from 0 different airlines.

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

    A quick flight from Washington, D.C. to Las Vegas can take about 7h 36m. Southwest provides one of the quickest options available for as low as £192. The distance between Washington, D.C. and Las Vegas is about 2059 mi. Both multi-stop and direct flights can be found to your destination and back.

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

    The most popular flight routes from Washington, D.C. to Las Vegas are Baltimore/Washington - Las Vegas Harry Reid Intl, Washington, D.C. Reagan-National - Las Vegas Harry Reid Intl and Washington, D.C. Dulles Intl - Las Vegas Harry Reid Intl.

  • 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 £233). Flying from Washington, D.C. to Las Vegas in March is currently the most expensive (average of £404). 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.

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