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Cheap flights from Washington, D.C. Dulles Intl Airport to Las Vegas from $192

IAD — LAS
13 Nov — 20 Nov1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Dulles Intl to Las Vegas

Enter your travel dates to find the best prices.

Cheapest flights from Dulles Intl to Las Vegas

Sat 5/1208:35 -
Nonstop5h 22m
Tue 8/1213:20 -
Nonstop4h 28m
Deal found 12/10$397
Fri 4/1219:30 -
Nonstop5h 18m
Tue 8/1223:59 -
Nonstop4h 22m
Deal found 13/10$426
Sat 7/1118:46 -
1 stop18h 05m
Wed 11/1107:10 -
1 stop7h 30m
Deal found 13/10$440
Mon 7/1212:00 -
1 stop7h 30m
Sat 12/1207:00 -
1 stop7h 33m
Deal found 9/10$455
Sat 7/1117:40 -
Nonstop5h 18m
Tue 17/1107:40 -
Nonstop4h 28m
Deal found 13/10$469
Tue 24/1118:39 -
1 stop8h 15m
Wed 2/1207:52 -
1 stop6h 47m
Deal found 9/10$475
Mon 7/1219:30 -
Nonstop5h 18m
Fri 11/1213:20 -
Nonstop4h 28m
Deal found 9/10$476
Tue 8/1212:35 -
Nonstop5h 17m
Wed 9/1213:20 -
1 stop8h 19m
Deal found 9/10$478
Tue 10/1112:56 -
Nonstop5h 21m
Fri 13/1107:40 -
Nonstop4h 28m
Deal found 9/10$482
Fri 13/1117:16 -
1 stop8h 16m
Mon 16/1122:16 -
1 stop7h 53m
Deal found 9/10$483
Thu 12/1118:46 -
1 stop8h 09m
Wed 18/1107:10 -
1 stop7h 30m
Deal found 13/10$485
Sat 14/1118:46 -
1 stop18h 05m
Wed 18/1110:31 -
2 stops16h 13m
Deal found 13/10$495

Find flight deals from Dulles Intl to Las Vegas

Round-trip from

$397

One-way from

$192

Popular in

October

Cheapest in

August

Average price

$909
United Airlines
  • United Airlines
  • 12/12-15/12
  • Nonstop
  • 9h 39m total
  • Washington, D.C. to Las Vegas
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Alaska Airlines
  • Alaska Airlines
  • 14/11-31/12
  • 1 total stop
  • 18h 05m total
  • Washington, D.C. to Las Vegas
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($56 potential increase over avg. return price).
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Cheapest flight prices on average. 2% potential price decrease ($26 potential savings vs. average return price).
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Average for round-trip flights in October 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Las Vegas that are best for you.

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Fly to

Route

Depart

Return

Price

Cheapest return flight

Washington, D.C.Las Vegas

IAD Washington, D.C. Dulles Intl - LAS Las Vegas Harry Reid Intl

IADLAS

Washington, D.C. Dulles Intl

Sat 12/12

08:35-10:57

Nonstop5h 22m

Las Vegas Harry Reid Intl

Wed 31/12

00:00-03:00

Nonstop0h 00m

$199

Washington, D.C.Las Vegas

IAD Washington, D.C. Dulles Intl - LAS Las Vegas Harry Reid Intl

IADLAS

Washington, D.C. Dulles Intl

Sat 12/12

15:00-19:45

1 stop7h 45m

Las Vegas Harry Reid Intl

Wed 31/12

00:00-03:00

Nonstop0h 00m

$214

Washington, D.C.Las Vegas

IAD Washington, D.C. Dulles Intl - LAS Las Vegas Harry Reid Intl

IADLAS

Washington, D.C. Dulles Intl

Sun 8/11

17:40-19:58

Nonstop5h 18m

Las Vegas Harry Reid Intl

Wed 31/12

00:00-03:00

Nonstop0h 00m

$228

Washington, D.C.Las Vegas

IAD Washington, D.C. Dulles Intl - LAS Las Vegas Harry Reid Intl

IADLAS

Washington, D.C. Dulles Intl

Tue 3/11

09:00-11:22

Nonstop5h 22m

Las Vegas Harry Reid Intl

Wed 31/12

00:00-03:00

Nonstop0h 00m

$271

Washington, D.C.Las Vegas

IAD Washington, D.C. Dulles Intl - LAS Las Vegas Harry Reid Intl

IADLAS

Washington, D.C. Dulles Intl

Thu 5/11

12:30-19:45

1 stop10h 15m

Las Vegas Harry Reid Intl

Wed 31/12

00:00-03:00

Nonstop0h 00m

$285

Washington, D.C.Las Vegas

IAD Washington, D.C. Dulles Intl - LAS Las Vegas Harry Reid Intl

IADLAS

Washington, D.C. Dulles Intl

Sat 13/3

17:25-23:22

1 stop8h 57m

Las Vegas Harry Reid Intl

Wed 31/12

00:00-03:00

Nonstop0h 00m

$291

Washington, D.C.Las Vegas

IAD Washington, D.C. Dulles Intl - LAS Las Vegas Harry Reid Intl

IADLAS

Washington, D.C. Dulles Intl

Wed 18/11

17:40-19:58

Nonstop5h 18m

Las Vegas Harry Reid Intl

Wed 31/12

00:00-03:00

Nonstop0h 00m

$293

Washington, D.C.Las Vegas

IAD Washington, D.C. Dulles Intl - LAS Las Vegas Harry Reid Intl

IADLAS

Washington, D.C. Dulles Intl

Thu 3/12

19:30-21:48

Nonstop5h 18m

Las Vegas Harry Reid Intl

Wed 31/12

00:00-03:00

Nonstop0h 00m

$301

Washington, D.C.Las Vegas

IAD Washington, D.C. Dulles Intl - LAS Las Vegas Harry Reid Intl

IADLAS

Washington, D.C. Dulles Intl

Sun 1/11

18:32-00:37

1 stop9h 05m

Las Vegas Harry Reid Intl

Wed 31/12

00:00-03:00

Nonstop0h 00m

$314

Washington, D.C.Las Vegas

IAD Washington, D.C. Dulles Intl - LAS Las Vegas Harry Reid Intl

IADLAS

Washington, D.C. Dulles Intl

Sun 8/11

18:32-00:37

1 stop9h 05m

Las Vegas Harry Reid Intl

Wed 31/12

00:00-03:00

Nonstop0h 00m

$314

Flights are sorted by cheapest return flights first.

Deals found on 11/10

Showing 1-10 of 24 resultsSorted by cheapest first
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Best time to book a flight from Dulles Intl to Las Vegas

Have a flexible travel schedule? Discover the best time to fly to Las Vegas from Dulles Intl with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Las Vegas

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Las Vegas?

Booking 52 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport to Las Vegas?

Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Las Vegas (average of $496). Flying from Washington, D.C. Dulles Intl Airport to Las Vegas in October is currently the most expensive (average of $909). 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 IAD to LAS?

When flying from Washington, D.C. Dulles Intl Airport 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.

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

Airfare is below average for this route at the moment.

Washington, D.C. Dulles Intl Airport to Las Vegas flights typically cost between $611 and $1,335 in December.
The cheapest return price found within the last 5 days was $397 on United Airlines (5 Dec–8 Dec).

Related info for your journey

  • What airport do you fly into for flights to Las Vegas from Washington, D.C. Dulles Intl?

    For a flight from Washington, D.C. Dulles Intl 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. Dulles Intl per day. 0 airlines have flights to Las Vegas Harry Reid Intl from Washington, D.C. Dulles Intl on a regular basis.

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

    Airlines like United Airlines and Alaska Airlines fly from Washington, D.C. Dulles Intl Airport to Las Vegas in about 5h 22m. The time it takes to get you to your destination can typically vary by up to 4h 56m. There are 3314 km between Washington, D.C. Dulles Intl Airport and Las Vegas. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to Las Vegas?

    No one likes to see their flight delayed. When booking a flight from Washington, D.C. Dulles Intl Airport to Las Vegas consider choosing Ethiopian Air(85%), United Airlines(74%) or Brussels Airlines(68%), as they are the most reliable in getting you off to your destination on time.

  • Can I find deals for flights from Dulles Intl to Las Vegas that include hotel bookings?

    Yes. In addition to deals on Dulles Intl to Las Vegas flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Dulles Intl to Las Vegas?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Las Vegas.

  • Can I find deals for business class flights from Dulles Intl to Las Vegas?

    Yes. Cheapflights offers flight deals from Dulles Intl 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. Dulles Intl Airport to Las Vegas?

    Currently, August is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Las Vegas (average of $496). Flying from Washington, D.C. Dulles Intl Airport to Las Vegas in October is currently the most expensive (average of $909). 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.

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