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 $184. Additional round-trip tickets that might be worth considering are offered by Alaska Airlines and United Airlines, with the lowest prices starting at $220 and $233, respectively. These flights start at 60% 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 United Airlines, with whom users have recently found tickets for as low as $108. However, be on the lookout for offers from Frontier and Alaska 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 cheapest flights from Washington, D.C. Dulles Intl Airport to Las Vegas?

Looking at all options, your cheapest flight can be booked for $101. While the most popular route (Washington, D.C. Dulles Intl - Las Vegas Harry Reid Intl) can be booked for $157 on average our data indicates $840 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 (82%), Austrian Airlines (66%) and United Airlines (57%).

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

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

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

It’s generally more expensive to depart on a Monday, if you have to leave on this day you can still search on Cheapflights to find great options that meet your needs.

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

The best pricing can be found in the month of September. Prices to Las Vegas from Washington, D.C. Dulles Intl Airport average $392. You can even find prices in September for less than $392, as users have found deals to Las Vegas from as low as $122. The month of December appears to be one of the more expensive times to travel to Las Vegas from Washington, D.C. Dulles Intl Airport. Flying in the targeted month can save you up to 15%.

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. 8 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 8 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.

$108+ Flights from Washington, D.C. Dulles Intl Airport to Las Vegas

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

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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Las Vegas Harry Reid Intl are usually found in May or February, booked 70 days in advance, depart on a Tuesday or Saturday and return on a Wednesday

Cheap flight deals from Dulles Intl to Las Vegas

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$184 (Kiwi.com)
One-way from	$108 (United Airlines)
Popular in	December
Cheapest in	May
Average price	$463
Good round-trip deal	$274 or less
Good one-way deal	$153 or less

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

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

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

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

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Highest demand for flights based on searches. 3% potential increase in price ($18 potential increase over avg. RT price).

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Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).

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Average for round-trip flights in April 2025

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

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

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Find flight deals from 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 April 11, 2025.

Mon 6/237:30 amIAD - LAS

Nonstop5h 00mFrontier

Thu 6/2611:02 pmLAS - IAD

Nonstop4h 28mFrontier

Deal found 4/10

$184

Sun 5/257:25 amIAD - LAS

Nonstop5h 15mMultiple Airlines

Tue 6/35:51 pmLAS - IAD

1 stop10h 45mMultiple Airlines

Deal found 4/10

$192

Tue 4/2910:00 amIAD - LAS

1 stop12h 03mAlaska Airlines

Tue 5/610:08 amLAS - IAD

1 stop10h 50mAlaska Airlines

Deal found 4/10

$220

Sat 5/317:40 pmIAD - LAS

Nonstop5h 04mUnited Airlines

Tue 6/37:00 amLAS - IAD

Nonstop4h 37mUnited Airlines

Deal found 4/10

$233

Sun 5/255:14 pmIAD - LAS

1 stop8h 16mHawaiian Airlines

Thu 5/296:00 amLAS - IAD

1 stop9h 59mHawaiian Airlines

Deal found 4/10

$241

Wed 6/256:20 amIAD - LAS

1 stop9h 10mDelta

Wed 7/26:45 amLAS - IAD

1 stop10h 08mDelta

Deal found 4/10

$257

Sun 4/277:00 pmIAD - LAS

1 stop7h 25mSouthwest

Thu 5/111:15 amLAS - IAD

1 stop8h 25mSouthwest

Deal found 4/10

$305

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 April 11, 2025.

Mon 6/237:30 amIAD - LAS

Nonstop5h 00mFrontier

Thu 6/2611:02 pmLAS - IAD

Nonstop4h 28mFrontier

Deal found 4/10

$184

Sun 5/257:25 amIAD - LAS

Nonstop5h 15mMultiple Airlines

Tue 6/35:51 pmLAS - IAD

1 stop10h 45mMultiple Airlines

Deal found 4/10

$192

Tue 4/2910:00 amIAD - LAS

1 stop12h 03mAlaska Airlines

Tue 5/610:08 amLAS - IAD

1 stop10h 50mAlaska Airlines

Deal found 4/10

$220

Sat 5/317:40 pmIAD - LAS

Nonstop5h 04mUnited Airlines

Tue 6/37:00 amLAS - IAD

Nonstop4h 37mUnited Airlines

Deal found 4/10

$233

Mon 5/55:00 pmIAD - LAS

1 stop8h 24mHawaiian Airlines

Sat 5/106:00 amLAS - IAD

1 stop7h 00mHawaiian Airlines

Deal found 4/10

$237

Wed 6/256:20 amIAD - LAS

1 stop9h 10mDelta

Wed 7/26:45 amLAS - IAD

1 stop10h 08mDelta

Deal found 4/10

$257

Mon 4/287:25 amIAD - LAS

2 stops9h 20mSouthwest

Sat 5/35:55 amLAS - IAD

1 stop6h 20mSouthwest

Deal found 4/10

$310

Sat 6/289:42 pmIAD - LAS

2 stops18h 08mAllegiant Air

Fri 7/42:16 pmLAS - IAD

1 stop20h 39mAllegiant Air

Deal found 4/10

$320

Sun 5/1811:37 amIAD - LAS

1 stop9h 09mSun Country Air

Thu 5/2211:59 pmLAS - IAD

1 stop8h 54mSun Country Air

Deal found 4/10

$338

Last-minute flights from Dulles Intl to Las Vegas
Discover last-minute flight deals from Dulles Intl to Las Vegas. Data last updated April 11, 2025 and is based on user searches.

Tue 4/157:00 amIAD - LAS

1 stop11h 06mAlaska Airlines

Sat 4/2610:08 amLAS - IAD

1 stop10h 50mAlaska Airlines

Deal found 4/10

$248

Wed 4/166:30 amIAD - LAS

1 stop8h 03mUnited Airlines

Sat 4/1912:11 pmLAS - IAD

1 stop7h 08mUnited Airlines

Deal found 4/9

$369

Thu 4/175:30 pmIAD - LAS

1 stop8h 21mMultiple Airlines

Thu 4/2411:03 pmLAS - IAD

1 stop12h 19mMultiple Airlines

Deal found 4/10

$359

Thu 4/1712:37 pmIAD - LAS

1 stop7h 58mSun Country Air

Sun 4/2011:59 pmLAS - IAD

1 stop7h 44mSun Country Air

Deal found 4/10

$500

Fri 4/186:22 pmIAD - LAS

1 stop31h 21mFrontier

Fri 5/3010:24 pmLAS - IAD

Nonstop4h 31mFrontier

Deal found 4/10

$225

Fri 4/182:10 pmIAD - LAS

2 stops12h 05mSouthwest

Fri 4/255:50 amLAS - IAD

1 stop9h 05mSouthwest

Deal found 4/10

$434

Sat 4/195:30 pmIAD - LAS

1 stop8h 21mHawaiian Airlines

Tue 4/226:38 amLAS - IAD

1 stop7h 44mHawaiian Airlines

Deal found 4/10

$334

Sun 4/206:00 amIAD - LAS

1 stop10h 05mDelta

Wed 4/2312:35 amLAS - IAD

1 stop7h 48mDelta

Deal found 4/10

$323

Sun 4/206:18 amIAD - LAS

2 stops9h 19mAmerican Airlines

Thu 4/249:55 amLAS - IAD

2 stops9h 47mAmerican Airlines

Deal found 4/10

$374

Sun 4/277:00 pmIAD - LAS

1 stop7h 25mSouthwest

Thu 5/111:15 amLAS - IAD

1 stop8h 25mSouthwest

Deal found 4/10

$305

Tue 4/2910:00 amIAD - LAS

1 stop12h 03mAlaska Airlines

Tue 5/610:08 amLAS - IAD

1 stop10h 50mAlaska Airlines

Deal found 4/10

$220

Mon 5/58:01 amIAD - LAS

Nonstop5h 15mMultiple Airlines

Tue 5/1312:00 pmLAS - IAD

1 stop8h 58mMultiple Airlines

Deal found 4/10

$190

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 April 11, 2025.

Sat 5/248:40 amIAD - LAS

Nonstop4h 50mUnited Airlines

Deal found 4/9

$108

Fri 5/167:45 amIAD - LAS

Nonstop5h 15mFrontier

Deal found 4/9

$109

Sat 4/267:00 amIAD - LAS

1 stop10h 59mAlaska Airlines

Deal found 4/10

$110

Mon 5/55:00 pmIAD - LAS

1 stop8h 24mHawaiian Airlines

Deal found 4/9

$120

Tue 5/205:30 pmIAD - LAS

1 stop7h 25mSouthwest

Deal found 4/9

$121

Sat 5/171:00 pmIAD - LAS

1 stop7h 42mDelta

Deal found 4/9

$129

Mon 6/3010:13 amIAD - LAS

1 stop14h 02mMultiple Airlines

Deal found 4/9

$132

Thu 5/1512:49 pmIAD - LAS

1 stop24h 09mSun Country Air

Deal found 4/9

$148

Sat 5/243:29 pmIAD - LAS

2 stops35h 09mAllegiant Air

Deal found 4/9

$166

Sat 5/109:11 amIAD - LAS

2 stops10h 01mAmerican Airlines

Deal found 4/9

$188

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

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Mon 6/23

7:30 am-9:30 am

Nonstop5h 00m

Las Vegas Harry Reid Intl

Thu 6/26

11:02 pm-6:30 am

Nonstop4h 28m

$184

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sun 5/25

7:25 am-9:40 am

Nonstop5h 15m

Las Vegas Harry Reid Intl

Tue 6/3

5:51 pm-7:36 am

1 stop10h 45m

$192

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Tue 4/29

10:00 am-7:03 pm

1 stop12h 03m

Las Vegas Harry Reid Intl

Tue 5/6

10:08 am-11:58 pm

1 stop10h 50m

$220

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Fri 5/2

5:00 pm-10:24 pm

1 stop8h 24m

Las Vegas Harry Reid Intl

Thu 5/8

12:00 pm-12:23 am

1 stop9h 23m

$225

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sat 5/31

7:40 pm-9:44 pm

Nonstop5h 04m

Las Vegas Harry Reid Intl

Tue 6/3

7:00 am-2:37 pm

Nonstop4h 37m

$233

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Wed 6/25

6:20 am-12:30 pm

1 stop9h 10m

Las Vegas Harry Reid Intl

Wed 7/2

6:45 am-7:53 pm

1 stop10h 08m

$257

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sun 4/27

7:00 pm-11:25 pm

1 stop7h 25m

Las Vegas Harry Reid Intl

Thu 5/1

11:15 am-10:40 pm

1 stop8h 25m

$305

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sat 5/24

8:40 am-10:30 am

Nonstop4h 50m

$108

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sat 4/26

7:00 am-2:59 pm

1 stop10h 59m

$110

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sat 6/28

7:30 am-9:30 am

Nonstop5h 00m

$115

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/9

Showing 1-10 of 17 results

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 April.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Priceline	Price Accuracy1 star	Trust Score*3 stars
CheapTicketsDeal	Price Accuracy3 stars	Trust Score*3 stars
Kiwi.com	Price Accuracy3 stars	Trust Score*2 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.

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

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 70 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 $198). Flying from Washington, D.C. Dulles Intl Airport to Las Vegas in March is currently the most expensive (average of $269). 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 in the evening tend to be the most expensive. A flight at noon could potentially save you up to 13% 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 at noon when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

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

The most flights from IAD to LAS are scheduled on a Tuesday (9 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (8 on average).

Rainfall in Las Vegas by month

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.

Temperature in Las Vegas 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 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).

Reviews of airlines servicing Las Vegas

See what other customers who have flown with Alaska Airlines, Southwest and Delta from Washington, D.C. to Las Vegas have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

9,851 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Alaska Airlines

8.0

Very good

9,851 reviews

Alaska Airlines

8.0

Very good

9,851 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Southwest

8.0

Very good

4,279 reviews

Alaska Airlines

8.0

Very good

9,851 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Delta

8.0

Very good

7,911 reviews

Alaska Airlines

8.0

Very good

9,851 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Hawaiian Airlines

7.9

Good

2,365 reviews

Alaska Airlines

8.0

Very good

9,851 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

United Airlines

7.4

Good

8,636 reviews

Alaska Airlines

8.0

Very good

9,851 reviews

Reviews

1 / 20

4.0

Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

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. 8 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 8 inbound flights from Washington, D.C. Dulles Intl per day.
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 $184. Additional round-trip tickets that might be worth considering are offered by Alaska Airlines and United Airlines, with the lowest prices starting at $220 and $233, respectively. These flights start at 60% 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 United Airlines, with whom users have recently found tickets for as low as $108. However, be on the lookout for offers from Frontier and Alaska 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 (82%), Austrian Airlines (66%) and United Airlines (57%).
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 $101. While the most popular route (Washington, D.C. Dulles Intl - Las Vegas Harry Reid Intl) can be booked for $157 on average our data indicates $840 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 $198). Flying from Washington, D.C. Dulles Intl Airport to Las Vegas in March is currently the most expensive (average of $269). 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

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Other flights to Las Vegas

Top 8 airlines flying from Dulles Intl to Las Vegas

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$131	Average$236	FlexibilityNo cancel fee	On-time62%
Sun Country Air	Cheapest$137	Average$323	FlexibilityNo cancel fee	On-time83%
Spirit Airlines	Cheapest$161	Average$295	FlexibilityNo cancel fee	On-time65%
Alaska Airlines	Cheapest$248	Average$332	FlexibilityNo cancel fee	On-time75%
Delta	Cheapest$258	Average$346	FlexibilityNo cancel fee	On-timeN/A
United Airlines	Cheapest$292	Average$507	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$332	Average$536	FlexibilityNo cancel fee	On-time63%
American Airlines	Cheapest$359	Average$488	FlexibilityNo cancel fee	On-time71%

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$108+ Cheap flights from Dulles Intl (IAD) to Las Vegas (LAS)

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 5/24. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Las Vegas Harry Reid Intl are usually found in May or February, booked 70 days in advance, depart on a Tuesday or Saturday and return on a Wednesday

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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 April 11, 2025.

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 April 11, 2025.

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

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 April.

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.

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?

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Las Vegas. Price data was last updated on April 4, 2025.

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?

Find hourly flight availability from Dulles Intl 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 April 11, 2025.

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

Use this chart to determine the cheapest time to fly round-trip from Dulles Intl to Las Vegas. Price data was last updated on March 30, 2025.

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

Rainfall in Las Vegas by month

Plan your trip to Las Vegas by taking into account the average rainfall totals by month.

Temperature in Las Vegas by month

Plan your trip to Las Vegas by taking into account the average temperature totals by month.

Reviews of airlines servicing Las Vegas

See what other customers who have flown with Alaska Airlines, Southwest and Delta from Washington, D.C. to Las Vegas have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl 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. Dulles Intl?

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

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Top 8 airlines flying from Dulles Intl to Las Vegas

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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 April 11, 2025.