Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Washington, D.C. to Las Vegas from $170

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 24/5. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — LAS
21 Apr — 28 Apr1
1 adult

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 16 April 2025.

Round-trip from

$327

One-way from

$170

Popular in

December

Cheapest in

September

Average price

$619

Good round-trip deal

$262 or less

Good one-way deal

$110 or less
Alaska Airlines
  • Alaska Airlines
  • 3/9-6/9
  • 2 total stops
  • 18h 17m total
  • Washington, D.C. to Las Vegas
United Airlines
  • United Airlines
  • 24/5
  • Nonstop
  • 4h 50m total
  • Washington, D.C. to Las Vegas
Highest demand for flights based on searches. 3% potential increase in price ($36 potential increase over avg. return price).
Cheapest flight prices on average. 1% potential price decrease ($15 potential savings vs. average return price).
Average for round-trip flights in April 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 16 April 2025.

Tue 28/1016:15IAD - LAS
1 stop9h 00mAlaska Airlines
Tue 4/1107:15LAS - IAD
1 stop8h 30mAlaska Airlines
Deal found 15/4$310
Wed 21/515:55IAD - LAS
Nonstop5h 17mUnited Airlines
Sat 24/513:35LAS - IAD
Nonstop4h 25mUnited Airlines
Deal found 15/4$340
Fri 9/517:00IAD - LAS
1 stop8h 24mHawaiian Airlines
Tue 13/510:08LAS - IAD
1 stop10h 50mHawaiian Airlines
Deal found 15/4$378
Sat 10/516:00IAD - LAS
1 stop10h 10mSouthwest
Mon 12/505:20LAS - IAD
1 stop8h 30mSouthwest
Deal found 15/4$382
Wed 18/606:20IAD - LAS
1 stop6h 52mDelta
Tue 24/623:59LAS - IAD
1 stop6h 01mDelta
Deal found 15/4$404
Thu 1/512:45IAD - LAS
1 stop13h 01mSun Country Air
Thu 8/511:05LAS - IAD
1 stop22h 18mSun Country Air
Deal found 15/4$449

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 16 April 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

Wed 3/9

07:00-13:10

1 stop9h 10m

Las Vegas Harry Reid Intl

Sat 6/9

07:00-19:07

1 stop9h 07m

$327

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Wed 21/5

15:55-18:12

Nonstop5h 17m

Las Vegas Harry Reid Intl

Sat 24/5

13:35-21:00

Nonstop4h 25m

$340

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Fri 9/5

17:00-22:24

1 stop8h 24m

Las Vegas Harry Reid Intl

Tue 13/5

10:08-23:58

1 stop10h 50m

$378

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sat 10/5

16:00-23:10

1 stop10h 10m

Las Vegas Harry Reid Intl

Mon 12/5

05:20-16:50

1 stop8h 30m

$382

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Wed 18/6

06:20-10:12

1 stop6h 52m

Las Vegas Harry Reid Intl

Tue 24/6

23:59-09:00

1 stop6h 01m

$404

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Thu 1/5

12:45-22:46

1 stop13h 01m

Las Vegas Harry Reid Intl

Thu 8/5

11:05-12:23

1 stop22h 18m

$449

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sat 24/5

08:40-10:30

Nonstop4h 50m

$170

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Tue 13/5

06:30-12:57

1 stop9h 27m

$173

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sun 25/5

17:14-22:30

1 stop8h 16m

$184

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Mon 19/5

18:40-22:45

1 stop7h 05m

$190

Flights are sorted by cheapest return flights first.

Deals found on 15/4

Showing 1-10 of 13 results
1
2

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 11 April 2025.

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 28 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.

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 $978). Flying from Washington, D.C. to Las Vegas in December is currently the most expensive (average of $1,549). 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 16 April 2025.

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 16 April 2025.

The most flights from WAS to LAS are scheduled on a Monday (14 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (10 on average).

Rainfall in Las Vegas by month

Plan your trip to Las Vegas by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Las Vegas ranges from 3.0 - 20.0 inches per month. February is typically the wettest month, when rainfall can reach 20.0 mm. May is typically the driest time to visit Las Vegas when rainfall is around 3.0 mm.

Temperature in Las Vegas by month

Plan your trip to Las Vegas by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Las Vegas, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 34.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 9.0 C).

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 16 April 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Washington, D.C. to Las Vegas. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
8.0
Very Good

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Comfort

7.9

Overall

8.0

Boarding

8.2

Food

7.1

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

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 12 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.

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

    Our cheapest airline available from Washington, D.C. to Las Vegas is Alaska Airlines. Our recent data shows that you can find tickets from as low as $327 on this airline. Additional options worth looking into are United Airlines and Hawaiian Airlines, starting at $340 and $373 round-trip. You may be able to fly from Washington, D.C. to Las Vegas for 46% less than the average price by searching for these airlines.

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

    The cheapet airlines for a one-way flight from Washington, D.C. to Las Vegas are United Airlines ($170), Alaska Airlines ($173), and Hawaiian Airlines ($184).

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

    On average you can expect to pay $186 for a flight from Washington, D.C. to Las Vegas. The cheapest flight overall is $104 while the most popular route, (Washington, D.C. Dulles Intl - Las Vegas Harry Reid Intl) is currently priced at $275.

  • 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 $978). Flying from Washington, D.C. to Las Vegas in December is currently the most expensive (average of $1,549). 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 Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Paradise
Winchester

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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

See prices for flight routes from nearby airports that may be better suited for you.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.