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Cheap flights from Washington, D.C. to Las Vegas from £69

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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — LAS
7 Dec — 14 Dec1
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 July, booked 88 days in advance, depart on a Monday or Tuesday and return on a Monday

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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 7 November 2025.

Thu 11/1208:20IAD - LAS
Nonstop5h 13mUnited Airlines
Fri 12/1208:30LAS - IAD
Nonstop4h 29mUnited Airlines
Deal found 7/11£172
Thu 11/1208:20IAD - LAS
Nonstop5h 13mUnited Airlines
Sat 13/1219:04LAS - IAD
1 stop8h 47mUnited Airlines
Deal found 6/11£176
Sun 7/1219:32IAD - LAS
Nonstop5h 20mUnited Airlines
Mon 8/1200:59LAS - IAD
1 stop7h 24mUnited Airlines
Deal found 5/11£179
Sat 6/1206:00IAD - LAS
1 stop8h 01mUnited Airlines
Sun 7/1219:04LAS - IAD
1 stop8h 47mUnited Airlines
Deal found 6/11£183
Sat 6/1207:00DCA - LAS
1 stop8h 40mUnited Airlines
Sat 6/1223:59LAS - DCA
1 stop8h 59mUnited Airlines
Deal found 6/11£183
Fri 12/1217:25IAD - LAS
1 stop7h 34mUnited Airlines
Sun 14/1205:20LAS - IAD
1 stop6h 41mUnited Airlines
Deal found 7/11£187
Thu 11/1209:00BWI - LAS
1 stop8h 36mUnited Airlines
Sun 14/1219:50LAS - BWI
1 stop8h 29mUnited Airlines
Deal found 6/11£187
Thu 11/1212:55DCA - LAS
1 stop7h 25mSouthwest
Sun 14/1223:15LAS - DCA
1 stop6h 25mSouthwest
Deal found 6/11£187
Mon 22/1212:50IAD - LAS
Nonstop5h 27mUnited Airlines
Thu 25/1213:10LAS - IAD
Nonstop4h 30mUnited Airlines
Deal found 6/11£189
Sat 6/1210:20BWI - LAS
2 stops10h 36mUnited Airlines
Wed 10/1205:20LAS - BWI
1 stop6h 51mUnited Airlines
Deal found 6/11£191
Thu 11/1212:55DCA - LAS
1 stop7h 25mSouthwest
Sat 13/1206:40LAS - DCA
2 stops8h 20mSouthwest
Deal found 6/11£191
Sat 6/1212:15DCA - LAS
2 stops9h 50mSouthwest
Sat 13/1206:40LAS - DCA
2 stops8h 20mSouthwest
Deal found 6/11£195

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 7 November 2025.

Round-trip from

£172

One-way from

£69

Popular in

December

Cheapest in

August

Average price

£294
United Airlines
  • United Airlines
  • 11/12-12/12
  • Nonstop
  • 9h 42m total
  • Washington, D.C. to Las Vegas
Search Deals
American Airlines
  • American Airlines
  • 10/3
  • 1 total stop
  • 7h 04m total
  • Washington, D.C. to Las Vegas
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£26 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£5 potential savings vs. average return price).
Search Deals
Average for round-trip flights in November 2025
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 7 November 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

Thu 5/2

18:45-23:59

1 stop8h 14m

Las Vegas Harry Reid Intl

Mon 9/2

23:50-07:13

Nonstop4h 23m

£179

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sat 13/12

13:10-18:24

1 stop8h 14m

Las Vegas Harry Reid Intl

Tue 16/12

13:50-21:10

Nonstop4h 20m

£179

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Fri 23/1

19:36-21:57

Nonstop5h 21m

Las Vegas Harry Reid Intl

Mon 26/1

06:00-16:22

1 stop7h 22m

£179

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Thu 29/1

17:15-21:59

1 stop7h 44m

Las Vegas Harry Reid Intl

Mon 2/2

09:56-19:21

1 stop6h 25m

£187

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Mon 26/1

14:24-19:02

1 stop7h 38m

Las Vegas Harry Reid Intl

Tue 27/1

00:59-11:23

1 stop7h 24m

£187

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Wed 11/2

07:30-11:49

1 stop7h 19m

Las Vegas Harry Reid Intl

Sat 14/2

00:59-11:35

1 stop7h 36m

£187

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Sun 25/1

14:00-18:25

1 stop7h 25m

Las Vegas Harry Reid Intl

Wed 28/1

00:59-11:29

1 stop7h 30m

£187

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Mon 26/1

16:11-20:32

1 stop7h 21m

Las Vegas Harry Reid Intl

Tue 27/1

00:59-11:29

1 stop7h 30m

£187

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Sat 14/2

13:30-20:25

2 stops9h 55m

Las Vegas Harry Reid Intl

Wed 18/2

08:15-18:00

1 stop6h 45m

£191

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Thu 11/12

12:55-17:20

1 stop7h 25m

Las Vegas Harry Reid Intl

Sat 13/12

06:40-18:00

2 stops8h 20m

£191

Flights are sorted by cheapest return flights first.

Deals found on 7/11

Showing 1-10 of 60 results
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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

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 return flight from Washington, D.C. to Las Vegas. Price data was last updated on 31 October 2025.

Booking 88 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, March is the cheapest month in which you can book a flight from Washington, D.C. to Las Vegas (average of £76). Flying from Washington, D.C. to Las Vegas in December is currently the most expensive (average of £127). 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 7 November 2025.

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 in the evening, which can drop the price by up to 46% versus a flight at midday.

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 7 November 2025.

The most flights from WAS to LAS are scheduled on a Wednesday (8 on average). You will have fewer flight options on Saturday, 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?

What’s the top stopover airport for flights from Washington, D.C. to Las Vegas?

Share of one-stop return flights from Washington, D.C. to Las Vegas chosen by Cheapflights users in the past 12 months, using the same stopover each way.

San Diego (SAN) – chosen by Cheapflights users on 50% of one-stop itineraries from Washington, D.C. to Las Vegas on Cheapflights.

What’s the cheapest stopover airport for flights from Washington, D.C. to Las Vegas?

Average return fare for one-stop flights from Washington, D.C. to Las Vegas, chosen by Cheapflights users in the past 12 months, with the same stopover each way.

Los Angeles (LAX) is the most affordable one-stop option, with an average return flight price of £102.

What’s the fastest stopover option from Washington, D.C. to Las Vegas?

Shortest average travel time for one-stop one-way flights from Washington, D.C. to Las Vegas, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by stopover airport.

Flights via Los Angeles (LAX) have the shortest average one-way travel time for one-stop routes: 8h 10m.

Which airport typically offers the quickest stopover for flights from Washington, D.C. to Las Vegas?

Average stopover duration for one-stop one-way flights from Washington, D.C. to Las Vegas, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via San Diego (SAN) offer the fastest connection on this route, with an average stopover time of 2h 21m.

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 8h 14m. United Airlines provides one of the quickest options available for as low as £179. 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 cheapest airlines to fly from Washington, D.C. to Las Vegas one-way?

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as £86. Users have also found prices from £94 and £99 on Southwest and Delta, respectively.

  • 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 Washington, D.C. Reagan-National - Las Vegas Harry Reid Intl, Baltimore/Washington - 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 ITA Airways (100%), Austrian Airlines (88%) or Ethiopian Air (86%) 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, March is the cheapest month in which you can book a flight from Washington, D.C. to Las Vegas (average of £76). Flying from Washington, D.C. to Las Vegas in December is currently the most expensive (average of £127). 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

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