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Cheap flights from Washington, D.C. to Las Vegas from $143

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 13/5. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — LAS
27 Feb — 6 Mar1
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 22 February 2025.

Round-trip from

$453

One-way from

$143

Popular in

December

Cheapest in

September

Average price

$594
United Airlines
  • United Airlines
  • 26/4-28/4
  • Nonstop
  • 9h 42m total
  • Washington, D.C. to Las Vegas
Frontier
  • Frontier
  • 13/5
  • Nonstop
  • 5h 15m total
  • Washington, D.C. to Las Vegas
Highest demand for flights based on searches. 1% potential increase in price ($14 potential increase over avg. return price).
Cheapest flight prices on average. 1% potential price decrease ($13 potential savings vs. average return price).
Average for round-trip flights in February 2025

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 22 February 2025.

Sat 26/417:55IAD - LAS
Nonstop5h 19mUnited Airlines
Mon 28/423:55LAS - IAD
Nonstop4h 25mUnited Airlines
Deal found 21/2$453
Mon 24/317:58IAD - LAS
1 stop8h 18mAlaska Airlines
Wed 26/307:06LAS - IAD
1 stop6h 52mAlaska Airlines
Deal found 21/2$483
Wed 23/413:44IAD - LAS
1 stop9h 06mDelta
Mon 28/400:40LAS - IAD
1 stop7h 29mDelta
Deal found 21/2$484
Tue 15/407:50IAD - LAS
2 stops12h 15mSouthwest
Wed 16/408:30LAS - IAD
1 stop6h 25mSouthwest
Deal found 20/2$492
Sun 3/812:40IAD - LAS
1 stop13h 02mSun Country Air
Fri 8/818:50LAS - IAD
1 stop13h 53mSun Country Air
Deal found 21/2$525

Find flights from Washington, D.C. to Las Vegas within your budget

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 22 February 2025.

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

Sat 26/4

17:55-20:14

Nonstop5h 19m

Las Vegas Harry Reid Intl

Mon 28/4

23:55-07:20

Nonstop4h 25m

$453

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Mon 24/3

17:58-23:16

1 stop8h 18m

Las Vegas Harry Reid Intl

Wed 26/3

07:06-16:58

1 stop6h 52m

$483

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Wed 23/4

13:44-19:50

1 stop9h 06m

Las Vegas Harry Reid Intl

Mon 28/4

00:40-11:09

1 stop7h 29m

$484

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Tue 15/4

07:50-17:05

2 stops12h 15m

Las Vegas Harry Reid Intl

Wed 16/4

08:30-17:55

1 stop6h 25m

$492

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sun 3/8

12:40-22:42

1 stop13h 02m

Las Vegas Harry Reid Intl

Fri 8/8

18:50-11:43

1 stop13h 53m

$525

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Tue 13/5

08:01-10:16

Nonstop5h 15m

$143

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sat 19/7

12:40-17:48

1 stop8h 08m

$240

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Thu 20/3

17:30-22:51

1 stop8h 21m

$241

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Wed 23/4

18:40-22:30

1 stop6h 50m

$243

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Mon 14/4

18:59-08:36

1 stop16h 37m

$251

Flights are sorted by cheapest return flights first.

Deals found on 21/2

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.

Travel insights for flights from Washington, D.C. to Las Vegas

Get recent, data-driven insights about flights from Washington, D.C. to Las Vegas including ideal travel times, pricing trends, and more.

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 14 February 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 22 February 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 22 February 2025.

The most flights from WAS to LAS are scheduled on a Thursday (14 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (4 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 22 February 2025.
Read reviews from past customers who have flown Southwest, Alaska Airlines 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.

Boarding

8.2

Overall

8.1

Food

7.1

Entertainment

7.6

Comfort

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Boarding

8.2

Overall

8.1

Food

7.1

Entertainment

7.6

Comfort

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Boarding

8.2

Overall

8.1

Food

7.1

Entertainment

7.6

Comfort

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

8.0
Very Good

Boarding

8.2

Overall

8.1

Food

7.1

Entertainment

7.6

Comfort

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Boarding

8.2

Overall

8.1

Food

7.1

Entertainment

7.6

Comfort

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

Boarding

8.2

Overall

8.1

Food

7.1

Entertainment

7.6

Comfort

8.1

Crew

8.7

Reviews

1 / 20

2.0
Mediocre

Anonymous,Feb 2025

MCO - STL

Cancelled at last minute, SWA unable to assist in formulating alternate plans. Wound up renting a car and driving 13 hours to beat bad weather forecast at home. Not SWA’s fault that there was significant bad weather across the country.

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.

  • 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 United Airlines. Our recent data shows that you can find tickets from as low as $453 on this airline. Additional options worth looking into are Alaska Airlines and Southwest, starting at $483 and $492 round-trip. You may be able to fly from Washington, D.C. to Las Vegas for 27% 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 Frontier ($143), Sun Country Air ($240), and Hawaiian Airlines ($241).

  • 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 Austrian Airlines(63%), Brussels Airlines(57%) or United Airlines(56%), 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 $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

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

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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..

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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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