Cheap flights from Washington, D.C. to Las Vegas from $236

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 17/1. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — LAS
9 janv. — 16 janv.1
1 adult
1 adult, Economy, 0 bags

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 10 décembre 2025.

mer. 31/1216:17IAD - LAS
1 stop7h 39mDelta
mar. 20/106:00LAS - IAD
1 stop7h 46mDelta
Deal found 8/12$535
mer. 31/1220:25IAD - LAS
Nonstop5h 20mUnited Airlines
mer. 7/108:30LAS - IAD
Nonstop4h 30mUnited Airlines
Deal found 9/12$557
mer. 31/1216:17IAD - LAS
1 stop7h 39mDelta
mar. 6/111:35LAS - IAD
1 stop8h 31mDelta
Deal found 8/12$592
mer. 31/1220:25IAD - LAS
Nonstop5h 20mUnited Airlines
jeu. 1/108:30LAS - IAD
Nonstop4h 30mUnited Airlines
Deal found 7/12$618
mer. 31/1218:29IAD - LAS
1 stop8h 12mAlaska Airlines
dim. 18/106:00LAS - IAD
1 stop8h 04mAlaska Airlines
Deal found 8/12$621
mer. 31/1212:58IAD - LAS
1 stop7h 34mDelta
jeu. 22/111:00LAS - IAD
1 stop9h 10mDelta
Deal found 8/12$649
mer. 31/1220:25IAD - LAS
Nonstop5h 20mUnited Airlines
mar. 20/113:55LAS - IAD
Nonstop4h 30mUnited Airlines
Deal found 8/12$655
mer. 31/1220:25IAD - LAS
Nonstop5h 20mUnited Airlines
lun. 5/116:31LAS - IAD
Nonstop4h 28mUnited Airlines
Deal found 9/12$682

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 10 décembre 2025.

Round-trip from

$429

One-way from

$236

Popular in

December

Cheapest in

August

Average price

$714

Good round-trip deal

$251 or less
Delta
  • Delta
  • 17/1-20/1
  • 2 total stops
  • 30h 01m total
  • Washington, D.C. to Las Vegas
Alaska Airlines
  • Alaska Airlines
  • 17/1
  • 1 total stop
  • 8h 05m total
  • Washington, D.C. to Las Vegas
Highest demand for flights based on searches. 13% potential increase in price ($121 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average return price).
Average for round-trip flights in December 2025
Price to beat on a round-trip flight from Washington, D.C. (WAS) to Las Vegas Harry Reid Intl.

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 10 décembre 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

lun. 26/1

07:30-15:00

1 stop10h 30m

Las Vegas Harry Reid Intl

sam. 31/1

11:31-23:10

1 stop8h 39m

$429

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

ven. 23/1

07:30-15:00

1 stop10h 30m

Las Vegas Harry Reid Intl

mer. 28/1

11:00-23:10

1 stop9h 10m

$429

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

lun. 26/1

07:30-22:35

1 stop18h 05m

Las Vegas Harry Reid Intl

mar. 3/2

11:00-23:10

1 stop9h 10m

$429

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

ven. 23/1

07:30-15:00

1 stop10h 30m

Las Vegas Harry Reid Intl

jeu. 29/1

11:00-23:10

1 stop9h 10m

$429

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

mer. 21/1

07:30-15:00

1 stop10h 30m

Las Vegas Harry Reid Intl

mar. 3/2

11:00-23:10

1 stop9h 10m

$429

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

ven. 23/1

07:30-15:00

1 stop10h 30m

Las Vegas Harry Reid Intl

ven. 30/1

11:00-23:10

1 stop9h 10m

$429

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

sam. 24/1

07:30-15:00

1 stop10h 30m

Las Vegas Harry Reid Intl

mar. 3/2

06:05-23:10

1 stop14h 05m

$429

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

lun. 26/1

18:04-11:11

1 stop20h 07m

Las Vegas Harry Reid Intl

lun. 2/2

19:36-16:26

1 stop17h 50m

$488

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

ven. 23/1

18:04-19:13

1 stop28h 09m

Las Vegas Harry Reid Intl

jeu. 29/1

19:36-16:26

1 stop17h 50m

$488

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

ven. 23/1

18:04-23:12

1 stop32h 08m

Las Vegas Harry Reid Intl

mer. 28/1

17:42-16:26

1 stop19h 44m

$488

Flights are sorted by cheapest return flights first.

Deals found on 7/12

Showing 1-10 of 24 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 5 December 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 37 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 $149). Flying from Washington, D.C. to Las Vegas in December is currently the most expensive (average of $229). 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 10 décembre 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 10 décembre 2025.

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

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

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.?

    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 8 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.

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

    Delta can get you from Washington, D.C. to Las Vegas in just under 10h 30m. Your travel time can differ by up to . Washington, D.C. and Las Vegas are separated by a distance of 3314 km.

  • 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 $149). Flying from Washington, D.C. to Las Vegas in December is currently the most expensive (average of $229). 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 Las Vegas?

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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..

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.

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