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Cheap flights from Washington, D.C. Dulles Intl Airport to Las Vegas from $49

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Las Vegas departing on 7/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Las Vegas

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Washington, D.C. Dulles Intl Airport to Las Vegas.
Frontier Logo
7:30 am - 9:30 amIAD-LAS
5h 00mnonstop
Frontier Logo
11:02 pm - 6:36 amLAS-IAD
4h 34mnonstop
$100Frontier
Find Deal
Wed, Jul 2 - Wed, Jul 9
Frontier Logo
8:01 am - 10:16 amIAD-LAS
5h 15mnonstop
Frontier Logo
11:00 pm - 6:31 amLAS-IAD
4h 31mnonstop
$101Frontier
Find Deal
Mon, May 5 - Thu, May 8
Frontier Logo
7:45 am - 10:00 amIAD-LAS
5h 15mnonstop
Frontier Logo
10:24 pm - 5:55 amLAS-IAD
4h 31mnonstop
$128Frontier
Find Deal
Sat, May 17 - Wed, May 21
Alaska Airlines Logo
5:00 pm - 10:24 pmIAD-LAS
8h 24m1 stop
Alaska Airlines Logo
6:00 am - 4:00 pmLAS-IAD
7h 00m1 stop
$216Alaska Airlines
Find Deal
Mon, May 5 - Tue, May 13
Alaska Airlines Logo
5:00 pm - 10:24 pmIAD-LAS
8h 24m1 stop
Alaska Airlines Logo
7:10 am - 6:25 pmLAS-IAD
8h 15m1 stop
$217Alaska Airlines
Find Deal
Sat, May 10 - Sat, May 17
United Airlines Logo
12:45 pm - 3:02 pmIAD-LAS
5h 17mnonstop
United Airlines Logo
7:00 am - 2:33 pmLAS-IAD
4h 33mnonstop
$218United Airlines
Find Deal
Sat, Apr 26 - Tue, Apr 29
United Airlines Logo
3:50 pm - 6:07 pmIAD-LAS
5h 17mnonstop
United Airlines Logo
10:45 pm - 6:10 amLAS-IAD
4h 25mnonstop
$221United Airlines
Find Deal
Mon, Apr 28 - Fri, May 2
Southwest Logo
5:15 am - 9:15 amIAD-LAS
7h 00m1 stop
Southwest Logo
7:00 am - 4:45 pmLAS-IAD
6h 45m1 stop
$238Southwest
Find Deal
Sun, May 4 - Tue, May 6
Delta Logo
7:46 pm - 12:22 amIAD-LAS
7h 36m1 stop
Delta Logo
12:55 am - 10:51 amLAS-IAD
6h 56m1 stop
$257Delta
Find Deal
Sun, May 4 - Fri, May 9
Delta Logo
7:30 am - 11:59 amIAD-LAS
7h 29m1 stop
Delta Logo
12:54 am - 11:16 amLAS-IAD
7h 22m1 stop
$277Delta
Find Deal
Mon, May 26 - Wed, May 28

Frontier flights from Washington, D.C. Dulles Intl Airport to Las Vegas

Our best Frontier deals on Washington, D.C. Dulles Intl Airport to Las Vegas flight tickets
Frontier
Jul 2
IAD7:30 amWashington, D.C. Dulles Intl
5h 00m
LAS9:30 amLas Vegas Harry Reid Intl
Jul 9
LAS11:02 pmLas Vegas Harry Reid Intl
4h 34m
IAD6:36 amWashington, D.C. Dulles Intl
Frontier
May 5
IAD8:01 amWashington, D.C. Dulles Intl
5h 15m
LAS10:16 amLas Vegas Harry Reid Intl
May 8
LAS11:00 pmLas Vegas Harry Reid Intl
4h 31m
IAD6:31 amWashington, D.C. Dulles Intl
Frontier
May 17
IAD7:45 amWashington, D.C. Dulles Intl
5h 15m
LAS10:00 amLas Vegas Harry Reid Intl
May 21
LAS10:24 pmLas Vegas Harry Reid Intl
4h 31m
IAD5:55 amWashington, D.C. Dulles Intl

Southwest flights from Washington, D.C. Dulles Intl Airport to Las Vegas

Our best Southwest deals on Washington, D.C. Dulles Intl Airport to Las Vegas flight tickets
Southwest
May 4
IAD5:15 amWashington, D.C. Dulles Intl
7h 00m
1 stop
LAS9:15 amLas Vegas Harry Reid Intl
May 6
LAS7:00 amLas Vegas Harry Reid Intl
6h 45m
1 stop
IAD4:45 pmWashington, D.C. Dulles Intl
Southwest
Apr 14
IAD6:40 pmWashington, D.C. Dulles Intl
7h 05m
1 stop
LAS10:45 pmLas Vegas Harry Reid Intl
May 10
LAS5:55 amLas Vegas Harry Reid Intl
6h 20m
1 stop
IAD3:15 pmWashington, D.C. Dulles Intl
Southwest
Apr 16
IAD2:50 pmWashington, D.C. Dulles Intl
9h 55m
1 stop
LAS9:45 pmLas Vegas Harry Reid Intl
Apr 19
LAS5:55 amLas Vegas Harry Reid Intl
6h 20m
1 stop
IAD3:15 pmWashington, D.C. Dulles Intl

See travel insights to Las Vegas from

How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Las Vegas

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Washington, D.C. Dulles Intl Airport and Las Vegas?

What is the cheapest month to fly to Las Vegas?

The month of February is, on average, the cheapest month to fly to Las Vegas from Washington, D.C. Dulles Intl Airport, with most prices found around $412. The month of January is another great option to travel to Las Vegas, with average flight prices from Washington, D.C. Dulles Intl Airport averaging around $432.

What is the cheapest day to depart on your flight to Las Vegas?

Our data shows that Saturday is the least expensive day to fly to Las Vegas. Tickets to fly out on this day can be as low as $434. Flights from Washington, D.C. Dulles Intl Airport to Las Vegas on a Thursday will generally be more expensive and average around $554. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Las Vegas?

The cheapest time of day to fly to Las Vegas is at noon when flights can be purchased for as low as $434. Flights to Las Vegas are more costly in the morning, with an average ticket price of $502. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Washington, D.C. Dulles Intl to Las Vegas Harry Reid Intl flight route?

Fly from Washington, D.C. Dulles Intl to Las Vegas Harry Reid Intl for the best Washington, D.C. Dulles Intl - Las Vegas Harry Reid Intl flight prices

How far in advance should I book a flight to Las Vegas?

You are more likely to see cheaper flights to Las Vegas from Washington, D.C. Dulles Intl Airport when booking 21 weeks ahead of your departure date. In general, you can expect to find flights to Las Vegas for around $476 when searching 21 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Las Vegas from Washington, D.C. Dulles Intl Airport for as low as $405 on momondo.

What cabin class options are available on Washington, D.C. Dulles Intl to Las Vegas Harry Reid Intl flights?

There are 4 cabin classes available to choose from on Washington, D.C. Dulles Intl to Las Vegas Harry Reid Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Washington, D.C. Dulles Intl Airport to Las Vegas flight prices changed over time?

As of April 2025, prices for Washington, D.C. Dulles Intl Airport to Las Vegas flights are approximately 7% cheaper when compared to flights at the same time last year.

When to book flights from Washington, D.C. Dulles Intl Airport to Las Vegas

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Dulles Intl Airport to Las Vegas according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Dulles Intl Airport to Las Vegas (IAD to LAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Las Vegas

Best Price Found

$49

Fastest flight time

4h 50m

Direct flights

Every day

Airports in Las Vegas

1 airport
The best one-way flight to Las Vegas from Washington, D.C. Dulles Intl Airport in the past 72 hours is $49. The best round-trip flight deal from Washington, D.C. Dulles Intl Airport to Las Vegas found on momondo in the last 72 hours is $100.
The fastest flight from Washington, D.C. Dulles Intl Airport to Las Vegas takes 4h 50m
Direct flights go from Washington, D.C. Dulles Intl Airport to Las Vegas every day.
There is 1 airport near Las Vegas: Las Vegas Harry Reid Intl (LAS)

  • How far is Washington, D.C. Dulles Intl to Las Vegas Harry Reid Intl by plane?

    There are 2056.9 mi between Washington, D.C. Dulles Intl and Las Vegas Harry Reid Intl. A reasonable flight in good conditions will take 4h 50m.

  • When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Las Vegas Harry Reid Intl Airport?

    Prices for flights from Washington, D.C. Dulles Intl Airport to Las Vegas Harry Reid Intl Airport were last updated today.

  • How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Las Vegas Harry Reid Intl Airport?

  • How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Las Vegas Harry Reid Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Las Vegas Harry Reid Intl Airport.

  • What documentation or ID do you need to fly to Las Vegas Harry Reid Intl Airport?

    The travel and health documents you'll need for your trip to Las Vegas Harry Reid Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Las Vegas Harry Reid Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Washington, D.C. Dulles Intl Airport to Las Vegas?

  • What is the most popular airline from Washington, D.C. Dulles Intl Airport to Las Vegas?


Best airlines flying from Washington, D.C. Dulles Intl Airport to Las Vegas

Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Las Vegas with momondo
Airline
Rating
Free Cancellation
Price
Sun Country AirPriceFrom $132Free CancellationRating
6.9
349 reviews
Search Sun Country Air flights
FrontierPriceFrom $132Free CancellationRating
5.9
3,277 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $161Free CancellationRating
6.3
7,890 reviews
Search Spirit Airlines flights
DeltaPriceFrom $258Free CancellationRating
8.0
7,897 reviews
Search Delta flights
Alaska AirlinesPriceFrom $275Free CancellationRating
8.0
9,835 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $293Free CancellationRating
7.4
8,619 reviews
Search United Airlines flights
SouthwestPriceFrom $332Free CancellationRating
8.0
4,275 reviews
Search Southwest flights
American AirlinesPriceFrom $359Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
  • United Airlines Flights From Washington, D.C. Dulles Intl Airport to Las Vegas

    United Airlines flight deals from Washington, D.C. Dulles Intl Airport to Las Vegas start from $293 round-trip. Over the 28 United Airlines flights for this route in a normal week, average airfare is usually $510 round-trip - but some users have found much cheaper deals with momondo.


Traveling to a place near Las Vegas?

Book flights to Las Vegas if you plan to visit one of these locations
Laughlin
Mount Charleston
Henderson
Mesquite
North Las Vegas
Kingman
Paradise
Pahrump
Primm
Furnace Creek
Boulder City
Winchester
Sunrise Manor
Needles

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Las Vegas?

Finding the right flight to Las Vegas from Washington, D.C. is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Las Vegas quick and easy, saving you time and money.

Can I find flights from Washington, D.C. to Las Vegas with flexible booking policies on momondo?

Flights from Washington, D.C. to Las Vegas with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Washington, D.C. to Las Vegas?

Once all potential Washington, D.C. to Las Vegas flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Washington, D.C. to Las Vegas right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Washington, D.C. to Las Vegas flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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