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Cheap flights from Washington, D.C. to Las Vegas from £88

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 6/1. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — LAS
4 Jan — 11 Jan1
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 23 days in advance, depart on a Monday or Tuesday 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 5 December 2025.

Wed 31/1216:17DCA - LAS
1 stop7h 05mUnited Airlines
Tue 6/100:59LAS - DCA
1 stop7h 31mUnited Airlines
Deal found 2/12£184
Wed 31/1209:49DCA - LAS
1 stop12h 51mJetBlue
Mon 5/123:59LAS - DCA
1 stop10h 21mJetBlue
Deal found 3/12£188
Wed 31/1215:25DCA - LAS
1 stop10h 20mJetBlue
Wed 14/110:59LAS - DCA
1 stop7h 46mJetBlue
Deal found 4/12£207
Wed 31/1209:00IAD - LAS
Nonstop5h 27mUnited Airlines
Wed 31/1200:59LAS - IAD
1 stop7h 29mUnited Airlines
Deal found 2/12£213
Wed 31/1212:45DCA - LAS
1 stop8h 19mUnited Airlines
Wed 31/1200:59LAS - DCA
1 stop7h 30mUnited Airlines
Deal found 2/12£217
Tue 16/1206:00DCA - LAS
1 stop8h 52mJetBlue
Tue 23/1222:24LAS - DCA
1 stop9h 48mJetBlue
Deal found 2/12£220
Tue 30/1215:25DCA - LAS
1 stop10h 20mJetBlue
Mon 5/123:59LAS - DCA
1 stop11h 30mJetBlue
Deal found 4/12£230
Tue 16/1206:00DCA - LAS
1 stop8h 52mJetBlue
Wed 24/1210:03LAS - DCA
1 stop9h 43mJetBlue
Deal found 2/12£239
Wed 31/1217:06IAD - LAS
1 stop9h 53mDelta
Wed 7/110:10LAS - IAD
1 stop7h 27mDelta
Deal found 2/12£246
Wed 17/1206:00DCA - LAS
1 stop8h 52mJetBlue
Tue 23/1222:24LAS - DCA
1 stop11h 40mJetBlue
Deal found 2/12£250
Wed 31/1207:00DCA - LAS
1 stop19h 59mDelta
Wed 7/123:26LAS - DCA
1 stop6h 53mDelta
Deal found 3/12£252
Sun 14/1206:00DCA - LAS
1 stop8h 21mJetBlue
Wed 24/1222:24LAS - DCA
1 stop9h 48mJetBlue
Deal found 3/12£253

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 5 December 2025.

Round-trip from

£147

One-way from

£70

Popular in

December

Cheapest in

August

Average price

£340

Good one-way deal

£177 or less
Frontier
  • Frontier
  • 9/1-11/1
  • 2 total stops
  • 41h 13m total
  • Washington, D.C. to Las Vegas
Search Deals
Spirit Airlines
  • Spirit Airlines
  • 5/2
  • 1 total stop
  • 13h 44m total
  • Washington, D.C. to Las Vegas
Search Deals
Highest demand for flights based on searches. 12% potential increase in price (£28 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 December 2025
Search Deals
Price to beat on a one-way flight from Washington, D.C. (WAS) to Las Vegas Harry Reid Intl.
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 5 December 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

Fri 6/2

19:36-21:57

Nonstop5h 21m

Las Vegas Harry Reid Intl

Tue 10/2

05:20-16:35

1 stop8h 15m

£169

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Fri 9/1

19:36-21:57

Nonstop5h 21m

Las Vegas Harry Reid Intl

Sun 11/1

23:50-07:13

Nonstop4h 23m

£169

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Fri 30/1

17:26-23:28

1 stop9h 02m

Las Vegas Harry Reid Intl

Mon 2/2

06:00-17:04

1 stop8h 04m

£175

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Sat 17/1

17:09-09:36

2 stops19h 27m

Las Vegas Harry Reid Intl

Sat 24/1

08:10-21:00

1 stop9h 50m

£177

Washington, D.C.Las Vegas

DCA - LAS

DCALAS

Washington, D.C. Reagan-National

Tue 27/1

08:59-14:11

1 stop8h 12m

Las Vegas Harry Reid Intl

Tue 27/1

18:41-20:00

1 stop22h 19m

£183

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Wed 11/2

07:30-15:00

1 stop10h 30m

Las Vegas Harry Reid Intl

Sun 15/2

11:05-23:10

1 stop9h 05m

£184

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sun 8/2

17:26-23:28

1 stop9h 02m

Las Vegas Harry Reid Intl

Mon 9/2

19:52-17:04

1 stop18h 12m

£184

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Thu 15/1

15:19-20:27

1 stop8h 08m

Las Vegas Harry Reid Intl

Sat 17/1

13:55-21:25

Nonstop4h 30m

£187

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Mon 2/2

19:36-21:57

Nonstop5h 21m

Las Vegas Harry Reid Intl

Tue 3/2

13:55-21:25

Nonstop4h 30m

£187

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Fri 9/1

07:30-14:35

1 stop10h 05m

Las Vegas Harry Reid Intl

Fri 16/1

06:05-16:46

1 stop7h 41m

£188

Flights are sorted by cheapest return flights first.

Deals found on 4/12

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 28 November 2025.

Booking 23 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 £74). Flying from Washington, D.C. to Las Vegas in December is currently the most expensive (average of £115). 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 5 December 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 5 December 2025.

The most flights from WAS to LAS are scheduled on a Monday (9 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (7 on average).

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 £100.

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.

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

About 19% of weekly flights between Washington, D.C. and Las Vegas have experienced delays in the past year, with the average delay time being 167 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 Friday 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.

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 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 15m. Frontier provides one of the quickest options available for as low as £168. 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 Frontier. According to our data, you can fly for as low as £45. Users have also found prices from £110 and £115 on Alaska Airlines and American Airlines, 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 Baltimore/Washington - Las Vegas Harry Reid Intl, Washington, D.C. Dulles Intl - Las Vegas Harry Reid Intl and Washington, D.C. Reagan-National - 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%), United Airlines (89%) or Ethiopian Air (88%) 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 £74). Flying from Washington, D.C. to Las Vegas in December is currently the most expensive (average of £115). 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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