What is the most punctual flight time for Washington, D.C. to Las Vegas flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.

Which airport typically offers the quickest layover for flights from Washington, D.C. Dulles Intl Airport to Las Vegas?

Flights via Denver (DEN) offer the fastest connection on this route, with an average layover time of 1h 05m.

Which airline has the best punctuality record on Washington, D.C. to Las Vegas flights?

Over the last year, United Airlines have had the lowest number of delays on this route, with just 10% of flights being delayed.

What’s the cheapest layover airport for flights from Washington, D.C. Dulles Intl Airport to Las Vegas?

Atlanta (ATL) is the most affordable 1-stop option, with an average round-trip price of $184.

What day of the week experiences the fewest flight delays on this route?

Wednesday tends to have the lowest number of delays on this route, whereas Monday has historically faced a higher average of delays compared to other days of the week.

What’s the top layover airport for flights from Washington, D.C. Dulles Intl Airport to Las Vegas?

Atlanta (ATL) – chosen by Cheapflights users on 50% of 1-stop itineraries from Washington, D.C. Dulles Intl Airport to Las Vegas on Cheapflights.

How often are flights from Washington, D.C. to Las Vegas delayed?

About 12% of weekly flights between Washington, D.C. and Las Vegas have experienced delays in the past year, with the average delay time being 201 minutes.

What’s the fastest layover option from Washington, D.C. Dulles Intl Airport to Las Vegas?

Flights via Denver (DEN) have the shortest average one-way travel time for 1-stop routes: 6h 50m.

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

There are many flights that can get you from Washington, D.C. Dulles Intl Airport to Las Vegas in 5h 31m. Fly via United Airlines or Alaska Airlines to get the fastest option. Airlines will cover a distance of 2059 mi. This flight may include one or multiple stops.

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

Flying on Frontier is currently your cheapest option to Las Vegas, with prices starting at $100. Additional round-trip tickets that might be worth considering are offered by Delta and JetBlue, with the lowest prices starting at $198 and $234, respectively. These flights start at 80% lower than the current average price 3 months from now.

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

The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $85. However, be on the lookout for offers from Delta and United Airlines, as they are both options that can get you from Washington, D.C. Dulles Intl Airport to Las Vegas for a low price.

Weekly flight availability from Washington, D.C. Dulles Intl Airport to Las Vegas

The most flights from IAD to LAS are scheduled on a Friday (8 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (4 on average).

In terms of precipitation, rainfall in Las Vegas ranges from 0.1 - 0.8 inches per month. February is typically the wettest month, when rainfall can reach 0.8 in. May is typically the driest time to visit Las Vegas when rainfall is around 0.1 in.

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 93.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Las Vegas?

Looking at all options, your cheapest flight can be booked for $113. While the most popular route (Washington, D.C. Dulles Intl - Las Vegas Harry Reid Intl) can be booked for $220 on average, our data indicates $1,137 when flying from Washington, D.C. Dulles Intl Airport to Las Vegas.

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

The top 3 most reliable airlines when flying from Washington, D.C. Dulles Intl Airport to Las Vegas are Ethiopian Air (90%), United Airlines (89%) and Frontier (82%).

What are the most popular airlines that fly from Washington, D.C. Dulles Intl Airport to Las Vegas?

Consider United Airlines, Frontier or Delta when booking your flight. These represent the most popular airlines when flying from Washington, D.C. Dulles Intl Airport to Las Vegas.

Most accurate provider : When it comes to deals on Washington, D.C. Dulles Intl Airport-Las Vegas flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Las Vegas flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Las Vegas flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Washington, D.C. Dulles Intl Airport-Las Vegas flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Las Vegas flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

Las Vegas Harry Reid Intl (LAS), located 6.2 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. Dulles Intl to Las Vegas. 7 airlines have flights to Harry Reid Intl from Washington, D.C. Dulles Intl on a regular basis. Booking flights from Washington, D.C. Dulles Intl to Las Vegas Harry Reid Intl should not be difficult; the airport handles an average of 5 inbound flights from Washington, D.C. Dulles Intl per day.

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 vacation 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.

$133+ Cheap Flights from Washington, D.C. Dulles Intl Airport to Las Vegas

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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Las Vegas Harry Reid Intl are usually found in August or July, booked 33 days in advance, depart on a Saturday or Tuesday and return on a Friday

Cheap flight deals from Dulles Intl to Las Vegas

Cheapest

Best

Last-minute

One-way

Cheapest flights from Dulles Intl to Las Vegas
Explore the most affordable flight options available from Dulles Intl to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 9, 2026.

Fri 11/271:09 pm -

Nonstop5h 22m

Wed 12/26:00 am -

1 stop11h 12m

Deal found 11/4

$280

Tue 12/228:51 pm -

Nonstop5h 17m

Fri 12/2510:39 pm -

Nonstop4h 28m

Deal found 11/4

$281

Sat 12/53:34 pm -

2 stops11h 24m

Fri 12/1112:59 am -

1 stop16h 11m

Deal found 11/7

$282

Fri 11/271:09 pm -

Nonstop5h 22m

Fri 12/411:43 pm -

1 stop12h 06m

Deal found 11/4

$283

Sat 12/510:35 pm -

2 stops18h 51m

Mon 12/711:43 pm -

1 stop8h 28m

Deal found 11/5

$284

Sat 12/123:00 pm -

2 stops11h 58m

Sat 12/1910:39 pm -

Nonstop4h 28m

Deal found 11/7

$285

Fri 11/271:09 pm -

Nonstop5h 22m

Sat 12/56:00 am -

1 stop11h 10m

Deal found 11/6

$286

Mon 12/2110:59 pm -

2 stops27h 49m

Thu 12/2410:39 pm -

Nonstop4h 28m

Deal found 11/6

$287

Fri 12/410:33 pm -

2 stops18h 53m

Sun 12/611:43 pm -

1 stop12h 06m

Deal found 11/5

$289

Thu 12/178:51 pm -

Nonstop5h 17m

Thu 12/2410:39 pm -

Nonstop4h 28m

Deal found 11/4

$290

Thu 12/178:51 pm -

Nonstop5h 17m

Mon 1/1112:14 pm -

1 stop9h 25m

Deal found 11/6

$291

Best flights from Dulles Intl to Las Vegas
Discover carefully curated flight deals from Dulles Intl to Las Vegas that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 9, 2026.

Wed 1/1312:55 pm -

Nonstop5h 31m

Sun 1/1711:30 pm -

Nonstop4h 29m

Deal found 11/6

$312

Mon 12/145:18 pm -

2 stops23h 57m

Wed 12/166:00 am -

1 stop8h 39m

Deal found 11/6

$375

Wed 12/166:00 am -

1 stop7h 32m

Sat 12/1912:37 am -

1 stop6h 11m

Deal found 11/4

$413

Mon 1/116:00 pm -

Nonstop5h 27m

Thu 1/146:00 am -

1 stop6h 58m

Deal found 11/4

$357

Sun 12/67:30 pm -

Nonstop5h 18m

Wed 12/911:56 am -

1 stop6h 28m

Deal found 11/5

$357

Wed 12/912:35 pm -

Nonstop5h 17m

Sat 12/121:39 pm -

1 stop6h 36m

Deal found 11/7

$358

Fri 12/41:00 pm -

1 stop7h 11m

Wed 12/911:59 pm -

Nonstop4h 22m

Deal found 11/8

$383

Fri 12/117:30 pm -

Nonstop5h 18m

Mon 12/141:20 pm -

1 stop8h 19m

Deal found 11/6

$389

Fri 12/188:15 am -

1 stop8h 07m

Tue 1/511:30 pm -

Nonstop4h 18m

Deal found 11/6

$404

Tue 12/87:30 pm -

Nonstop5h 18m

Wed 12/911:59 pm -

Nonstop4h 22m

Deal found 11/5

$407

Fri 12/47:30 pm -

Nonstop5h 18m

Sat 12/511:59 pm -

Nonstop4h 22m

Deal found 11/8

$411

Tue 12/812:35 pm -

Nonstop5h 17m

Fri 12/1111:59 pm -

Nonstop4h 22m

Deal found 11/5

$427

Last-minute flights from Dulles Intl to Las Vegas
Discover last-minute flight deals from Dulles Intl to Las Vegas. Data last updated November 9, 2026 and is based on user searches.

Fri 11/271:09 pm -

Nonstop5h 22m

Wed 12/26:00 am -

1 stop11h 12m

Deal found 11/4

$280

Fri 11/271:09 pm -

Nonstop5h 22m

Fri 12/411:43 pm -

1 stop12h 06m

Deal found 11/4

$283

Fri 11/271:09 pm -

Nonstop5h 22m

Sat 12/56:00 am -

1 stop11h 10m

Deal found 11/6

$286

Fri 12/410:33 pm -

2 stops18h 53m

Sun 12/611:43 pm -

1 stop12h 06m

Deal found 11/5

$289

Sat 12/53:34 pm -

2 stops11h 24m

Fri 12/1112:59 am -

1 stop16h 11m

Deal found 11/7

$282

Sat 12/510:35 pm -

2 stops18h 51m

Mon 12/711:43 pm -

1 stop8h 28m

Deal found 11/5

$284

Sat 12/123:00 pm -

2 stops11h 58m

Sat 12/1910:39 pm -

Nonstop4h 28m

Deal found 11/7

$285

Thu 12/178:51 pm -

Nonstop5h 17m

Thu 12/2410:39 pm -

Nonstop4h 28m

Deal found 11/4

$290

Thu 12/178:51 pm -

Nonstop5h 17m

Mon 1/1112:14 pm -

1 stop9h 25m

Deal found 11/6

$291

Mon 12/2110:59 pm -

2 stops27h 49m

Thu 12/2410:39 pm -

Nonstop4h 28m

Deal found 11/6

$287

Tue 12/228:51 pm -

Nonstop5h 17m

Fri 12/2510:39 pm -

Nonstop4h 28m

Deal found 11/4

$281

One-way flights from Dulles Intl to Las Vegas
Search for one-way flight options from Dulles Intl to Las Vegas. Find affordable one-way fares based on user searches. Data last updated November 9, 2026.

Sat 12/59:23 pm -

1 stop14h 14m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 11/4

$133

Sat 12/126:42 pm -

1 stop18h 00m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 11/4

$134

Tue 12/112:06 pm -

1 stop11h 20m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 11/6

$135

Sat 12/1910:59 pm -

1 stop12h 46m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 11/6

$136

Fri 12/48:57 pm -

1 stop30h 01m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 11/7

$137

Sun 12/138:55 pm -

1 stop28h 00m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 11/5

$138

Sat 12/128:35 am -

Nonstop5h 22m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 11/7

$139

Sat 12/1210:35 pm -

2 stops26h 20m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 11/7

$140

Sun 11/159:48 am -

1 stop15h 10m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 11/4

$141

Thu 2/410:57 pm -

1 stop11h 41m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 11/4

$142

Thu 12/310:22 pm -

2 stops26h 36m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 11/3

$143

Tue 1/55:30 am -

1 stop18h 14m

Wed 12/3112:00 am -

Nonstop0h 00m

Deal found 11/6

$144

Find flight deals from Dulles Intl to Las Vegas

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$280 (Cheapflightsfares)
One-way from	$133 (Super.com)
Popular in	October
Cheapest in	August
Average price	$509
Good round-trip deal	$362 or less
Good one-way deal	$178 or less

Provider with most accurate pricing for Washington, D.C. Dulles Intl-Las Vegas Harry Reid Intl flight deals.

Search Deals

Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Las Vegas Harry Reid Intl flights.

Search Deals

From Washington, D.C. Dulles Intl to Las Vegas Harry Reid Intl

Search Deals

One-way flight from Washington, D.C. Dulles Intl to Las Vegas Harry Reid Intl

Search Deals

Highest demand for flights based on searches. 5% potential increase in price ($27 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in November 2026

Search Deals

Price to beat on a round-trip flight from Washington, D.C. Dulles Intl to Las Vegas Harry Reid Intl.

Search Deals

Price to beat on a one-way flight from Washington, D.C. Dulles Intl to Las Vegas Harry Reid Intl.

Search Deals

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.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Las Vegas

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

IADLAS

Washington, D.C. Dulles Intl

Sat 1/23

6:53 pm-9:26 am

1 stop17h 33m

Las Vegas Harry Reid Intl

Wed 12/31

12:00 am-3:00 am

Nonstop0h 00m

$134

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

6:42 pm-9:42 am

1 stop18h 00m

Las Vegas Harry Reid Intl

Wed 12/31

12:00 am-3:00 am

Nonstop0h 00m

$134

Washington, D.C.Las Vegas

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

IADLAS

Washington, D.C. Dulles Intl

Tue 12/8

7:30 pm-9:48 pm

Nonstop5h 18m

Las Vegas Harry Reid Intl

Wed 12/31

12:00 am-3:00 am

Nonstop0h 00m

$139

Quickest round-trip

Washington, D.C.Las Vegas

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

IADLAS

Washington, D.C. Dulles Intl

Wed 12/9

12:35 pm-2:52 pm

Nonstop5h 17m

Las Vegas Harry Reid Intl

Wed 12/31

12:00 am-3:00 am

Nonstop0h 00m

$139

Washington, D.C.Las Vegas

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

IADLAS

Washington, D.C. Dulles Intl

Fri 2/5

5:30 pm-9:35 am

1 stop19h 05m

Las Vegas Harry Reid Intl

Wed 12/31

12:00 am-3:00 am

Nonstop0h 00m

$154

Washington, D.C.Las Vegas

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

IADLAS

Washington, D.C. Dulles Intl

Mon 12/14

7:30 pm-9:48 pm

Nonstop5h 18m

Las Vegas Harry Reid Intl

Wed 12/31

12:00 am-3:00 am

Nonstop0h 00m

$159

Washington, D.C.Las Vegas

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

IADLAS

Washington, D.C. Dulles Intl

Fri 12/11

12:38 pm-6:41 pm

1 stop9h 03m

Las Vegas Harry Reid Intl

Wed 12/31

12:00 am-3:00 am

Nonstop0h 00m

$169

Washington, D.C.Las Vegas

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

IADLAS

Washington, D.C. Dulles Intl

Tue 12/1

8:35 am-10:57 am

Nonstop5h 22m

Las Vegas Harry Reid Intl

Wed 12/31

12:00 am-3:00 am

Nonstop0h 00m

$189

Washington, D.C.Las Vegas

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

IADLAS

Washington, D.C. Dulles Intl

Fri 12/4

7:30 pm-9:48 pm

Nonstop5h 18m

Las Vegas Harry Reid Intl

Wed 12/31

12:00 am-3:00 am

Nonstop0h 00m

$189

Washington, D.C.Las Vegas

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

IADLAS

Washington, D.C. Dulles Intl

Wed 11/25

2:05 pm-6:42 pm

1 stop7h 37m

Las Vegas Harry Reid Intl

Wed 12/31

12:00 am-3:00 am

Nonstop0h 00m

$199

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/6

Showing 1-10 of 23 resultsSorted by cheapest first

Compare providers for flights from Dulles Intl to Las Vegas

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Las Vegas in November.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy2 stars	Trust Score*3 stars
JustAirTicket	Price Accuracy-	Trust Score*1 star
Cheapflightsfares	Price Accuracy2 stars	Trust Score*1 star
Jetabroad	Price Accuracy3 stars	Trust Score*3 stars
Mytrip	Price Accuracy2 stars	Trust Score*3 stars
Super.com	Price Accuracy-	Trust Score*3 stars
CheapTicketsDeal	Price Accuracy1 star	Trust Score*3 stars
Trip.com	Price Accuracy1 star	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Las Vegas flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Las Vegas flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Las Vegas flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Las Vegas flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Dulles Intl Airport-Las Vegas flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

IAD-LAS

Estimated round-trip 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. Dulles Intl Airport to Las Vegas

Prices

Airlines

Delays

The price you pay for your flight from Washington, D.C. Dulles Intl Airport to Las Vegas may vary depending on when you book. For the best chance of a lower fare, look to book 32 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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 $347). Flying from Washington, D.C. Dulles Intl Airport to Las Vegas in October is currently the most expensive (average of $614). 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?

One of the essential ways to save on airfare from Washington, D.C. Dulles Intl Airport to Las Vegas is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 23% on airfare.

What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to Las Vegas?

Travelers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Las Vegas flight should consider departing on Saturday mornings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

How much does it cost to fly round-trip 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 $361 and $677 in November.
The cheapest round-trip price found within the last 5 days was $280 on Frontier (Nov 27-Dec 2).

The best insider tips for Washington, D.C. Dulles Intl Airport to Las Vegas flights

Cheapflights partnered with top experts to bring you the best recommendations for your Washington, D.C. Dulles Intl Airport to Las Vegas trip

Our travel experts

Ramsey Qubein

Expert on IAD and LAS

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Peruse reviews from past customers who have flown with Southwest,Delta, andUnited Airlines from Washington, D.C. Dulles Intl Airport to Las Vegas to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,215 reviews

Reviews

1 / 20

8.0

Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.

Southwest

8.0

Very good

4,215 reviews

Southwest

8.0

Very good

4,215 reviews

Reviews

1 / 20

8.0

Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.

Delta

7.8

Good

8,698 reviews

Southwest

8.0

Very good

4,215 reviews

Reviews

1 / 20

8.0

Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.

United Airlines

7.3

Good

10,469 reviews

Southwest

8.0

Very good

4,215 reviews

Reviews

1 / 20

8.0

Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.

American Airlines

7.0

Good

12,228 reviews

Southwest

8.0

Very good

4,215 reviews

Reviews

1 / 20

8.0

Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.

Frontier

5.5

Fair

2,511 reviews

Southwest

8.0

Very good

4,215 reviews

Reviews

1 / 20

8.0

Excellent

Libby,Jun 2026

TUS - LAS

One delay in a 2 layover flight=a good trip. The crew was great.

Related info for your journey

What airport do you fly into for flights to Las Vegas from Washington, D.C. Dulles Intl?
Las Vegas Harry Reid Intl (LAS), located 6.2 mi from the city center, is the airport you fly into when you book flights from Washington, D.C. Dulles Intl to Las Vegas. 7 airlines have flights to Harry Reid Intl from Washington, D.C. Dulles Intl on a regular basis. Booking flights from Washington, D.C. Dulles Intl to Las Vegas Harry Reid Intl should not be difficult; the airport handles an average of 5 inbound flights from Washington, D.C. Dulles Intl per day.
How long is the flight from Washington, D.C. Dulles Intl Airport to Las Vegas?
There are many flights that can get you from Washington, D.C. Dulles Intl Airport to Las Vegas in 5h 31m. Fly via United Airlines or Alaska Airlines to get the fastest option. Airlines will cover a distance of 2059 mi. This flight may include one or multiple stops.
What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Las Vegas round-trip?
Flying on Frontier is currently your cheapest option to Las Vegas, with prices starting at $100. Additional round-trip tickets that might be worth considering are offered by Delta and JetBlue, with the lowest prices starting at $198 and $234, respectively. These flights start at 80% lower than the current average price 3 months from now.
What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Las Vegas one-way?
The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $85. However, be on the lookout for offers from Delta and United Airlines, as they are both options that can get you from Washington, D.C. Dulles Intl Airport to Las Vegas for a low price.
What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to Las Vegas?
The top 3 most reliable airlines when flying from Washington, D.C. Dulles Intl Airport to Las Vegas are Ethiopian Air (90%), United Airlines (89%) and Frontier (82%).
What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Las Vegas?
Looking at all options, your cheapest flight can be booked for $113. While the most popular route (Washington, D.C. Dulles Intl - Las Vegas Harry Reid Intl) can be booked for $220 on average, our data indicates $1,137 when flying from Washington, D.C. Dulles Intl Airport to Las Vegas.
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 vacation 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 $347). Flying from Washington, D.C. Dulles Intl Airport to Las Vegas in October is currently the most expensive (average of $614). 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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Top 7 airlines flying from Dulles Intl to Las Vegas

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$100	Average$357	FlexibilityNo cancel fee	On-time62%
Delta	Cheapest$198	Average$473	FlexibilityNo cancel fee	On-timeN/A
JetBlue	Cheapest$234	Average$308	FlexibilityNo cancel fee	On-time62%
Alaska Airlines	Cheapest$243	Average$409	FlexibilityNo cancel fee	On-time75%
United Airlines	Cheapest$281	Average$587	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$400	Average$518	FlexibilityNo cancel fee	On-time63%
American Airlines	Cheapest$421	Average$581	FlexibilityNo cancel fee	On-time71%

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$133+ Cheap flights from Dulles Intl (IAD) to Las Vegas (LAS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/5. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from Dulles Intl to Las Vegas

Cheapest flights from Dulles Intl to Las VegasExplore the most affordable flight options available from Dulles Intl to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 9, 2026.

Explore the most affordable flight options available from Dulles Intl to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 9, 2026.

Best flights from Dulles Intl to Las VegasDiscover carefully curated flight deals from Dulles Intl to Las Vegas that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 9, 2026.

Discover carefully curated flight deals from Dulles Intl to Las Vegas that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 9, 2026.

Last-minute flights from Dulles Intl to Las VegasDiscover last-minute flight deals from Dulles Intl to Las Vegas. Data last updated November 9, 2026 and is based on user searches.

Discover last-minute flight deals from Dulles Intl to Las Vegas. Data last updated November 9, 2026 and is based on user searches.

One-way flights from Dulles Intl to Las VegasSearch for one-way flight options from Dulles Intl to Las Vegas. Find affordable one-way fares based on user searches. Data last updated November 9, 2026.

Search for one-way flight options from Dulles Intl to Las Vegas. Find affordable one-way fares based on user searches. Data last updated November 9, 2026.

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Compare providers for flights from Dulles Intl to Las Vegas

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Dulles Intl to Las Vegas in November.

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.

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

The price you pay for your flight from Washington, D.C. Dulles Intl Airport to Las Vegas may vary depending on when you book. For the best chance of a lower fare, look to book 32 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Las Vegas?

What is the cheapest time of day to fly from IAD to LAS?

One of the essential ways to save on airfare from Washington, D.C. Dulles Intl Airport to Las Vegas is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 23% on airfare.

What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to Las Vegas?

How much does it cost to fly round-trip 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 $361 and $677 in November.The cheapest round-trip price found within the last 5 days was $280 on Frontier (Nov 27-Dec 2).

Weekly flight availability from Washington, D.C. Dulles Intl Airport to Las Vegas

The most flights from IAD to LAS are scheduled on a Friday (8 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (4 on average).

How often are flights from Washington, D.C. to Las Vegas delayed?

About 12% of weekly flights between Washington, D.C. and Las Vegas have experienced delays in the past year, with the average delay time being 201 minutes.

What is the most punctual flight time for Washington, D.C. to Las Vegas flights?

Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Wednesday tends to have the lowest number of delays on this route, whereas Monday 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 last year, United Airlines have had the lowest number of delays on this route, with just 10% of flights being delayed.

What’s the top layover airport for flights from Washington, D.C. Dulles Intl Airport to Las Vegas?

Atlanta (ATL) – chosen by Cheapflights users on 50% of 1-stop itineraries from Washington, D.C. Dulles Intl Airport to Las Vegas on Cheapflights.

What’s the cheapest layover airport for flights from Washington, D.C. Dulles Intl Airport to Las Vegas?

Atlanta (ATL) is the most affordable 1-stop option, with an average round-trip price of $184.

What’s the fastest layover option from Washington, D.C. Dulles Intl Airport to Las Vegas?

Flights via Denver (DEN) have the shortest average one-way travel time for 1-stop routes: 6h 50m.

Which airport typically offers the quickest layover for flights from Washington, D.C. Dulles Intl Airport to Las Vegas?

Flights via Denver (DEN) offer the fastest connection on this route, with an average layover time of 1h 05m.

The best insider tips for Washington, D.C. Dulles Intl Airport to Las Vegas flights

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

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

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

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

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

What are the cheapest flights from Washington, D.C. Dulles Intl Airport to Las Vegas?

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

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

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

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Las Vegas?

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Alternative routes for Dulles Intl to Las Vegas

Cheapest flights from Dulles Intl to Las Vegas
Explore the most affordable flight options available from Dulles Intl to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 9, 2026.

Best flights from Dulles Intl to Las Vegas
Discover carefully curated flight deals from Dulles Intl to Las Vegas that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 9, 2026.

Last-minute flights from Dulles Intl to Las Vegas
Discover last-minute flight deals from Dulles Intl to Las Vegas. Data last updated November 9, 2026 and is based on user searches.

One-way flights from Dulles Intl to Las Vegas
Search for one-way flight options from Dulles Intl to Las Vegas. Find affordable one-way fares based on user searches. Data last updated November 9, 2026.

Washington, D.C. Dulles Intl Airport to Las Vegas flights typically cost between $361 and $677 in November.
The cheapest round-trip price found within the last 5 days was $280 on Frontier (Nov 27-Dec 2).