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 $155. Additional round-trip tickets that might be worth considering are offered by United Airlines and Alaska Airlines, with the lowest prices starting at $159 and $201, respectively. These flights start at 64% 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 $82. However, be on the lookout for offers from Hawaiian Airlines 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 $77. While the most popular route (Washington, D.C. Dulles Intl - Las Vegas Harry Reid Intl) can be booked for $145 on average our data indicates $807 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 (79%) and Frontier (77%).

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 May. Prices to Las Vegas from Washington, D.C. Dulles Intl Airport average $380. You can even find prices in May for less than $380, as users have found deals to Las Vegas from as low as $139. 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 18%.

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 6 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.

$82+ Flights from Washington, D.C. Dulles Intl Airport to Las Vegas

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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 June or May, booked 87 days in advance, depart on a Tuesday or Saturday and return on a Thursday

Cheap flight deals from Dulles Intl to Las Vegas

Round-trip from	$155 (Cheapflightsfares)
One-way from	$82 (FlightHub)
Popular in	December
Cheapest in	June
Average price	$317
Good round-trip deal	$197 or less
Good one-way deal	$107 or less

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. 10% potential increase in price ($53 potential increase over avg. RT price).

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Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).

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Average for round-trip flights in June 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 June 12, 2025.

Sun 7/137:30 amIAD - LAS

Nonstop4h 59mFrontier

Thu 7/1711:00 pmLAS - IAD

Nonstop4h 34mFrontier

Deal found 6/11

$155

Sat 7/1210:10 pmIAD - LAS

Nonstop5h 04mUnited Airlines

Sat 7/198:30 amLAS - IAD

Nonstop4h 37mUnited Airlines

Deal found 6/10

$159

Wed 7/237:30 amIAD - LAS

Nonstop4h 59mMultiple Airlines

Wed 7/308:30 amLAS - IAD

1 stop7h 49mMultiple Airlines

Deal found 6/10

$176

Mon 8/115:25 pmIAD - LAS

1 stop8h 34mAlaska Airlines

Wed 8/138:30 amLAS - IAD

1 stop7h 49mAlaska Airlines

Deal found 6/10

$201

Mon 8/45:25 pmIAD - LAS

1 stop8h 34mHawaiian Airlines

Thu 8/78:30 amLAS - IAD

1 stop7h 49mHawaiian Airlines

Deal found 6/11

$238

Wed 9/175:45 amIAD - LAS

1 stop6h 35mSouthwest

Mon 9/226:15 amLAS - IAD

1 stop6h 30mSouthwest

Deal found 6/11

$255

Mon 6/306:00 amIAD - LAS

1 stop7h 17mDelta

Wed 7/27:10 amLAS - IAD

1 stop6h 23mDelta

Deal found 6/10

$257

Wed 7/1612:22 pmIAD - LAS

1 stop7h 41mSun Country Air

Thu 7/1711:55 pmLAS - IAD

1 stop9h 34mSun Country Air

Deal found 6/12

$275

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 June 12, 2025.

Sun 7/137:30 amIAD - LAS

Nonstop4h 59mFrontier

Thu 7/1711:00 pmLAS - IAD

Nonstop4h 34mFrontier

Deal found 6/11

$155

Sat 7/125:55 pmIAD - LAS

Nonstop5h 04mUnited Airlines

Wed 7/1611:59 pmLAS - IAD

Nonstop4h 35mUnited Airlines

Deal found 6/10

$159

Wed 7/237:30 amIAD - LAS

Nonstop4h 59mMultiple Airlines

Wed 7/308:30 amLAS - IAD

1 stop7h 49mMultiple Airlines

Deal found 6/10

$176

Mon 8/115:25 pmIAD - LAS

1 stop8h 34mAlaska Airlines

Wed 8/137:00 amLAS - IAD

1 stop8h 59mAlaska Airlines

Deal found 6/11

$201

Mon 8/45:25 pmIAD - LAS

1 stop8h 34mHawaiian Airlines

Thu 8/78:30 amLAS - IAD

1 stop7h 49mHawaiian Airlines

Deal found 6/11

$238

Mon 6/306:00 amIAD - LAS

1 stop7h 17mDelta

Sat 7/56:45 amLAS - IAD

1 stop10h 05mDelta

Deal found 6/9

$257

Fri 8/296:50 pmIAD - LAS

1 stop6h 40mSouthwest

Tue 9/27:50 amLAS - IAD

1 stop11h 15mSouthwest

Deal found 6/12

$262

Wed 7/1612:22 pmIAD - LAS

1 stop7h 41mSun Country Air

Thu 7/1711:55 pmLAS - IAD

1 stop9h 34mSun Country Air

Deal found 6/12

$275

Last-minute flights from Dulles Intl to Las Vegas
Discover last-minute flight deals from Dulles Intl to Las Vegas. Data last updated June 12, 2025 and is based on user searches.

Tue 6/177:30 amIAD - LAS

Nonstop5h 00mMultiple Airlines

Tue 6/248:30 amLAS - IAD

1 stop7h 49mMultiple Airlines

Deal found 6/9

$320

Tue 6/179:10 amIAD - LAS

2 stops8h 33mAmerican Airlines

Mon 6/2312:59 amLAS - IAD

1 stop7h 01mAmerican Airlines

Deal found 6/10

$402

Thu 6/197:40 pmIAD - LAS

Nonstop5h 04mUnited Airlines

Thu 6/2611:59 pmLAS - IAD

Nonstop4h 35mUnited Airlines

Deal found 6/12

$343

Sat 6/217:30 amIAD - LAS

Nonstop5h 00mFrontier

Wed 7/211:02 pmLAS - IAD

Nonstop4h 28mFrontier

Deal found 6/10

$215

Sat 6/218:19 pmIAD - LAS

1 stop16h 36mAlaska Airlines

Thu 7/178:30 amLAS - IAD

1 stop7h 49mAlaska Airlines

Deal found 6/10

$318

Sat 6/215:46 pmIAD - LAS

1 stop7h 59mDelta

Tue 7/112:50 amLAS - IAD

1 stop7h 32mDelta

Deal found 6/10

$347

Sat 6/217:00 pmIAD - LAS

1 stop6h 40mSouthwest

Thu 7/177:45 amLAS - IAD

2 stops8h 20mSouthwest

Deal found 6/10

$372

Mon 6/306:00 amIAD - LAS

1 stop7h 17mDelta

Wed 7/27:10 amLAS - IAD

1 stop6h 23mDelta

Deal found 6/10

$257

Tue 7/87:25 amIAD - LAS

1 stop9h 30mSouthwest

Sat 7/129:05 amLAS - IAD

1 stop6h 10mSouthwest

Deal found 6/10

$277

Sat 7/125:55 pmIAD - LAS

Nonstop5h 04mUnited Airlines

Wed 7/1611:59 pmLAS - IAD

Nonstop4h 35mUnited Airlines

Deal found 6/10

$159

Sun 7/137:30 amIAD - LAS

Nonstop4h 59mFrontier

Thu 7/1711:00 pmLAS - IAD

Nonstop4h 34mFrontier

Deal found 6/11

$155

Wed 7/1612:22 pmIAD - LAS

1 stop7h 41mSun Country Air

Thu 7/1711:55 pmLAS - IAD

1 stop9h 34mSun Country Air

Deal found 6/12

$275

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 June 12, 2025.

Sun 7/137:30 amIAD - LAS

Nonstop4h 59mFrontier

Deal found 6/11

$82

Mon 8/115:25 pmIAD - LAS

1 stop8h 34mHawaiian Airlines

Deal found 6/12

$100

Tue 7/295:25 pmIAD - LAS

1 stop19h 12mAlaska Airlines

Deal found 6/12

$106

Tue 6/247:40 pmIAD - LAS

Nonstop5h 04mUnited Airlines

Deal found 6/10

$115

Thu 8/214:56 pmIAD - LAS

1 stop27h 56mMultiple Airlines

Deal found 6/10

$116

Mon 7/75:00 amIAD - LAS

1 stop6h 30mSouthwest

Deal found 6/9

$126

Sat 7/265:46 pmIAD - LAS

1 stop9h 13mDelta

Deal found 6/12

$129

Sun 7/1310:00 amIAD - LAS

1 stop15h 39mSun Country Air

Deal found 6/10

$140

Thu 8/1411:04 amIAD - LAS

2 stops38h 22mAllegiant Air

Deal found 6/11

$164

Wed 6/181:08 pmIAD - LAS

1 stop9h 51mAmerican Airlines

Deal found 6/11

$219

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

Sun 7/13

7:30 am-9:29 am

Nonstop4h 59m

Las Vegas Harry Reid Intl

Thu 7/17

11:00 pm-6:34 am

Nonstop4h 34m

$155

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sat 7/12

10:10 pm-12:14 am

Nonstop5h 04m

Las Vegas Harry Reid Intl

Sat 7/19

8:30 am-4:07 pm

Nonstop4h 37m

$159

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Wed 7/23

7:30 am-9:29 am

Nonstop4h 59m

Las Vegas Harry Reid Intl

Wed 7/30

8:30 am-7:19 pm

1 stop7h 49m

$176

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Mon 8/11

5:25 pm-10:59 pm

1 stop8h 34m

Las Vegas Harry Reid Intl

Wed 8/13

8:30 am-7:19 pm

1 stop7h 49m

$201

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Mon 8/4

5:25 pm-10:59 pm

1 stop8h 34m

Las Vegas Harry Reid Intl

Thu 8/7

8:30 am-7:19 pm

1 stop7h 49m

$238

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Mon 6/30

6:00 am-10:17 am

1 stop7h 17m

Las Vegas Harry Reid Intl

Wed 7/2

7:10 am-4:33 pm

1 stop6h 23m

$257

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Fri 8/29

6:50 pm-10:30 pm

1 stop6h 40m

Las Vegas Harry Reid Intl

Tue 9/2

7:50 am-10:05 pm

1 stop11h 15m

$262

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Wed 7/16

12:22 pm-5:03 pm

1 stop7h 41m

Las Vegas Harry Reid Intl

Thu 7/17

11:55 pm-12:29 pm

1 stop9h 34m

$275

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sun 7/13

7:30 am-9:29 am

Nonstop4h 59m

$82

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Mon 8/11

5:25 pm-10:59 pm

1 stop8h 34m

$100

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 18 results

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

Airports

IAD

Expect long security queues at IAD, especially in the afternoon. Plan extra time to navigate the terminals efficiently.

LAS

For a quick exit from LAS, rideshares are available but pick up in the parking garage, which can be a long walk in summer.

Our travel experts

Ramsey Qubein

Expert on IAD and LAS

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 75 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 afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 14% 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. Monday 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 Wednesday (9 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (2 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

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Alaska Airlines

8.0

Very good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Southwest

8.0

Very good

4,287 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Delta

8.0

Very good

7,950 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Hawaiian Airlines

7.9

Good

2,494 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

United Airlines

7.4

Good

8,790 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 6 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 $155. Additional round-trip tickets that might be worth considering are offered by United Airlines and Alaska Airlines, with the lowest prices starting at $159 and $201, respectively. These flights start at 64% 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 $82. However, be on the lookout for offers from Hawaiian Airlines 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 (90%), United Airlines (79%) and Frontier (77%).
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 $77. While the most popular route (Washington, D.C. Dulles Intl - Las Vegas Harry Reid Intl) can be booked for $145 on average our data indicates $807 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$106	Average$204	FlexibilityNo cancel fee	On-time62%
Spirit Airlines	Cheapest$161	Average$322	FlexibilityNo cancel fee	On-time65%
Delta	Cheapest$256	Average$346	FlexibilityNo cancel fee	On-timeN/A
Alaska Airlines	Cheapest$257	Average$313	FlexibilityNo cancel fee	On-time75%
United Airlines	Cheapest$276	Average$481	FlexibilityNo cancel fee	On-time69%
Sun Country Air	Cheapest$305	Average$392	FlexibilityNo cancel fee	On-time83%
Southwest	Cheapest$328	Average$536	FlexibilityNo cancel fee	On-time63%
American Airlines	Cheapest$368	Average$530	FlexibilityNo cancel fee	On-time71%

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$82+ 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 7/13. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Dulles Intl to Las Vegas with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Las Vegas Harry Reid Intl are usually found in June or May, booked 87 days in advance, depart on a Tuesday or Saturday and return on a Thursday

Cheap flight deals from Dulles Intl to Las Vegas

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find 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 June 12, 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 June 12, 2025.

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.

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

Airports

IAD

LAS

Our travel experts

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 June 9, 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 June 12, 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 June 8, 2025.

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

Explore weekly flight availability from Dulles Intl 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 June 12, 2025.

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?

Traveling to a place near Washington, D.C. Dulles Intl Airport?

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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 June 12, 2025.