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

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

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

About 10% of weekly flights between Las Vegas and Washington, D.C. have experienced delays in the past year, with the average delay time being 156 minutes.

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

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

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

Over the last year, United Airlines have had the lowest number of delays on this route, with just 9% of flights being delayed.

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

Delta and Alaska Airlines can get you from Las Vegas to Washington, D.C. Dulles Intl Airport in just under 8h 04m. Your travel time can differ by up to 1h 06m. There are 2059 mi between Las Vegas and Washington, D.C. Dulles Intl Airport. This flight may include one or multiple stops.

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

Flying on Frontier is currently your cheapest option to Washington, D.C. Dulles Intl Airport, with prices starting at $128. Additional round-trip tickets that might be worth considering are offered by United Airlines and Delta, with the lowest prices starting at $221 and $256, respectively. Users have found that Frontier is 65% cheaper than the other options available to this destination.

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

The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $66. However, be on the lookout for offers from United Airlines and Southwest, as they are both options that can get you from Las Vegas to Washington, D.C. Dulles Intl Airport for a low price.

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

The most flights from LAS to IAD are scheduled on a Monday (7 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (6 on average).

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, 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 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

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

While on average a flight from Las Vegas to Washington, D.C. Dulles Intl Airport is generally $774, our data shows the cheapest flight currently is $118. When looking at the most popular route, (Las Vegas Harry Reid Intl - Washington, D.C. Dulles Intl), you can expect to pay $141 for that flight.

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

No one likes to see their flight delayed. When booking a flight from Las Vegas to Washington, D.C. Dulles Intl Airport consider choosing Ethiopian Air (92%), United Airlines (91%) or Austrian Airlines (90%) as they are the most reliable in getting you off to your destination on time.

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

The most popular airlines flying from Las Vegas to Washington, D.C. Dulles Intl Airport are United Airlines, Frontier and Delta. Something to consider prior to booking your flight.

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

Most trusted provider : When it comes to deals on Las Vegas-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust eDreams the most. eDreams 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 Las Vegas-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

Las Vegas Harry Reid Intl (LAS) is the airport you will fly out of if you book a flight from Las Vegas to Washington, D.C. Dulles Intl. You should not have trouble finding flights to Washington, D.C. Dulles Intl from Harry Reid Intl; the airport handles an average of 6 outbound flights to Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 3 airlines have flights from the Las Vegas airport to Washington, D.C. Dulles Intl. It is only a 6.2 mi journey to Harry Reid Intl (LAS) from Las Vegas’s city center.

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

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

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

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

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

Yes. Cheapflights offers flight deals from Las Vegas to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$113+ Flights from Las Vegas to Washington, D.C. Dulles Intl Airport

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Cheapflights Tip: The best prices from Las Vegas Harry Reid Intl to Washington, D.C. Dulles Intl are usually found in July or May, booked 67 days in advance, depart on a Thursday or Friday and return on a Saturday

Cheap flight deals from Las Vegas to Dulles Intl

Cheapest flights from Las Vegas to Dulles Intl
Explore the most affordable flight options available from Las Vegas to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 9, 2025.

jue. 12/256:05 amLAS - IAD

1 stop9h 11mFrontier

mar. 1/66:00 amIAD - LAS

1 stop13h 57mFrontier

Deal found 12/7

$208

mié. 12/3110:31 pmLAS - IAD

1 stop10h 07mFrontier

dom. 1/45:35 amIAD - LAS

1 stop13h 23mFrontier

Deal found 12/8

$227

sáb. 12/1310:20 pmLAS - IAD

1 stop19h 04mFrontier

mar. 1/66:00 amIAD - LAS

1 stop13h 57mFrontier

Deal found 12/8

$253

sáb. 12/2010:31 pmLAS - IAD

1 stop10h 25mFrontier

sáb. 1/1010:03 amIAD - LAS

1 stop27h 22mFrontier

Deal found 12/7

$254

jue. 12/2510:01 pmLAS - IAD

1 stop12h 13mFrontier

jue. 1/15:35 amIAD - LAS

1 stop13h 23mFrontier

Deal found 12/9

$257

jue. 12/183:54 pmLAS - IAD

1 stop20h 52mFrontier

jue. 1/15:35 amIAD - LAS

1 stop13h 23mFrontier

Deal found 12/8

$259

mié. 12/2410:20 pmLAS - IAD

2 stops16h 56mFrontier

mié. 12/317:01 pmIAD - LAS

1 stop29h 51mFrontier

Deal found 12/8

$266

mié. 12/2410:31 pmLAS - IAD

1 stop10h 07mFrontier

dom. 1/45:35 amIAD - LAS

1 stop13h 23mFrontier

Deal found 12/9

$269

mar. 12/1610:32 pmLAS - IAD

1 stop12h 57mMultiple Airlines

lun. 1/125:26 pmIAD - LAS

2 stops28h 47mMultiple Airlines

Deal found 12/8

$279

jue. 12/256:05 amLAS - IAD

1 stop9h 11mMultiple Airlines

mar. 1/67:33 amIAD - LAS

2 stops12h 52mMultiple Airlines

Deal found 12/7

$288

jue. 12/186:05 amLAS - IAD

1 stop9h 11mFrontier

vie. 12/192:09 pmIAD - LAS

1 stop22h 33mFrontier

Deal found 12/8

$291

mar. 12/2310:31 pmLAS - IAD

1 stop10h 07mFrontier

sáb. 1/311:04 amIAD - LAS

1 stop25h 38mFrontier

Deal found 12/9

$299

Best flights from Las Vegas to Dulles Intl
Discover carefully curated flight deals from Las Vegas to Dulles Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated diciembre 9, 2025.

mar. 1/611:16 amLAS - IAD

1 stop21h 12mMultiple Airlines

sáb. 1/179:03 pmIAD - LAS

2 stops30h 56mMultiple Airlines

Deal found 12/7

$223

jue. 1/1511:00 amLAS - IAD

1 stop9h 10mDelta

mar. 1/207:30 amIAD - LAS

1 stop10h 30mDelta

Deal found 12/8

$323

sáb. 1/316:00 amLAS - IAD

1 stop8h 04mAlaska Airlines

mar. 2/36:04 pmIAD - LAS

1 stop28h 09mAlaska Airlines

Deal found 12/8

$353

jue. 12/258:30 amLAS - IAD

Nonstop4h 30mUnited Airlines

mar. 1/612:35 pmIAD - LAS

Nonstop5h 24mUnited Airlines

Deal found 12/7

$370

mié. 2/188:45 amLAS - IAD

2 stops10h 10mSouthwest

sáb. 2/215:05 amIAD - LAS

2 stops10h 40mSouthwest

Deal found 12/7

$403

sáb. 1/2412:05 pmLAS - IAD

2 stops25h 59mAlaska Airlines

dom. 1/256:04 pmIAD - LAS

1 stop20h 07mAlaska Airlines

Deal found 12/7

$358

jue. 1/157:52 pmLAS - IAD

1 stop18h 12mAlaska Airlines

mar. 1/205:26 pmIAD - LAS

2 stops28h 47mAlaska Airlines

Deal found 12/8

$368

mié. 1/2111:50 pmLAS - IAD

Nonstop4h 23mUnited Airlines

lun. 1/267:36 pmIAD - LAS

Nonstop5h 21mUnited Airlines

Deal found 12/6

$405

mar. 1/68:30 amLAS - IAD

Nonstop4h 30mUnited Airlines

mar. 1/1312:35 pmIAD - LAS

Nonstop5h 24mUnited Airlines

Deal found 12/7

$405

vie. 2/136:58 pmLAS - IAD

1 stop19h 29mAlaska Airlines

lun. 2/167:05 amIAD - LAS

1 stop18h 51mAlaska Airlines

Deal found 12/7

$382

mié. 12/241:10 pmLAS - IAD

Nonstop4h 30mUnited Airlines

mié. 12/318:30 amIAD - LAS

1 stop8h 31mUnited Airlines

Deal found 12/8

$421

Last-minute flights from Las Vegas to Dulles Intl
Discover last-minute flight deals from Las Vegas to Dulles Intl. Data last updated diciembre 9, 2025 and is based on user searches.

sáb. 12/1310:20 pmLAS - IAD

1 stop19h 04mFrontier

mar. 1/66:00 amIAD - LAS

1 stop13h 57mFrontier

Deal found 12/8

$253

jue. 12/256:05 amLAS - IAD

1 stop9h 11mFrontier

mar. 1/66:00 amIAD - LAS

1 stop13h 57mFrontier

Deal found 12/7

$208

mié. 12/3110:31 pmLAS - IAD

1 stop10h 07mFrontier

dom. 1/45:35 amIAD - LAS

1 stop13h 23mFrontier

Deal found 12/8

$227

lun. 1/510:31 pmLAS - IAD

1 stop9h 57mFrontier

lun. 1/124:22 pmIAD - LAS

1 stop8h 10mFrontier

Deal found 12/6

$233

mar. 1/611:16 amLAS - IAD

1 stop21h 12mMultiple Airlines

sáb. 1/179:03 pmIAD - LAS

2 stops30h 56mMultiple Airlines

Deal found 12/7

$223

mar. 1/611:16 amLAS - IAD

1 stop21h 12mMultiple Airlines

vie. 1/98:40 amIAD - LAS

1 stop28h 28mMultiple Airlines

Deal found 12/8

$225

mar. 1/611:16 amLAS - IAD

1 stop21h 12mMultiple Airlines

jue. 1/89:59 pmIAD - LAS

1 stop23h 48mMultiple Airlines

Deal found 12/8

$237

mié. 1/710:58 pmLAS - IAD

1 stop9h 30mFrontier

vie. 1/98:40 amIAD - LAS

1 stop28h 28mFrontier

Deal found 12/8

$218

sáb. 1/2411:59 pmLAS - IAD

1 stop13h 34mFrontier

dom. 1/255:37 pmIAD - LAS

1 stop8h 20mFrontier

Deal found 12/7

$248

lun. 1/2611:13 amLAS - IAD

2 stops23h 56mMultiple Airlines

sáb. 1/3111:39 amIAD - LAS

1 stop14h 18mMultiple Airlines

Deal found 12/8

$247

vie. 1/3011:36 pmLAS - IAD

1 stop8h 08mMultiple Airlines

mié. 2/48:00 amIAD - LAS

2 stops31h 06mMultiple Airlines

Deal found 12/7

$226

One-way flights from Las Vegas to Dulles Intl
Search for one-way flight options from Las Vegas to Dulles Intl. Find affordable one-way fares based on user searches. Data last updated diciembre 9, 2025.

mar. 1/611:16 amLAS - IAD

1 stop21h 12mMultiple Airlines

Deal found 12/7

$113

sáb. 1/1010:35 pmLAS - IAD

2 stops37h 52mMultiple Airlines

Deal found 12/8

$114

jue. 12/256:05 amLAS - IAD

1 stop9h 11mFrontier

Deal found 12/8

$116

dom. 1/1112:59 amLAS - IAD

2 stops31h 44mFrontier

Deal found 12/9

$117

vie. 1/1611:03 pmLAS - IAD

1 stop30h 01mFrontier

Deal found 12/8

$118

jue. 12/183:54 pmLAS - IAD

1 stop20h 52mFrontier

Deal found 12/7

$120

mié. 1/711:31 amLAS - IAD

3 stops20h 57mMultiple Airlines

Deal found 12/8

$121

sáb. 1/1012:27 pmLAS - IAD

2 stops22h 41mFrontier

Deal found 12/8

$122

mié. 12/1711:21 amLAS - IAD

2 stops18h 25mFrontier

Deal found 12/7

$123

dom. 1/258:10 amLAS - IAD

2 stops22h 45mFrontier

Deal found 12/7

$124

vie. 3/610:58 pmLAS - IAD

1 stop9h 40mFrontier

Deal found 12/9

$126

Find flight deals from Las Vegas to Dulles Intl

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$208 (Frontier)
One-way from	$113 (Kiwi.com)
Popular in	January
Cheapest in	July
Average price	$449
Good round-trip deal	$377 or less
Good one-way deal	$173 or less

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

Search Deals

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

Search Deals

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

Search Deals

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

Search Deals

Highest demand for flights based on searches. 22% potential increase in price ($108 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($19 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

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

Search Deals

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

Search Deals

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

mar. 1/6

11:16 am-11:28 am

1 stop21h 12m

Washington, D.C. Dulles Intl

sáb. 1/17

9:03 pm-12:59 am

2 stops30h 56m

$223

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

jue. 1/15

11:00 am-11:10 pm

1 stop9h 10m

Washington, D.C. Dulles Intl

mar. 1/20

7:30 am-3:00 pm

1 stop10h 30m

$323

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

sáb. 1/31

6:00 am-5:04 pm

1 stop8h 04m

Washington, D.C. Dulles Intl

mar. 2/3

6:04 pm-7:13 pm

1 stop28h 09m

$353

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

sáb. 1/24

12:05 pm-5:04 pm

2 stops25h 59m

Washington, D.C. Dulles Intl

dom. 1/25

6:04 pm-11:11 am

1 stop20h 07m

$358

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

jue. 1/15

7:52 pm-5:04 pm

1 stop18h 12m

Washington, D.C. Dulles Intl

mar. 1/20

5:26 pm-7:13 pm

2 stops28h 47m

$368

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

jue. 12/25

8:30 am-4:00 pm

Nonstop4h 30m

Washington, D.C. Dulles Intl

mar. 1/6

12:35 pm-2:59 pm

Nonstop5h 24m

$370

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

vie. 2/13

6:58 pm-5:27 pm

1 stop19h 29m

Washington, D.C. Dulles Intl

lun. 2/16

7:05 am-10:56 pm

1 stop18h 51m

$382

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

mié. 2/18

8:45 am-9:55 pm

2 stops10h 10m

Washington, D.C. Dulles Intl

sáb. 2/21

5:05 am-12:45 pm

2 stops10h 40m

$403

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

mié. 1/21

11:50 pm-7:13 am

Nonstop4h 23m

Washington, D.C. Dulles Intl

lun. 1/26

7:36 pm-9:57 pm

Nonstop5h 21m

$405

Las VegasWashington, D.C.

LAS - IAD

LASIAD

Las Vegas Harry Reid Intl

mar. 1/6

8:30 am-4:00 pm

Nonstop4h 30m

Washington, D.C. Dulles Intl

mar. 1/13

12:35 pm-2:59 pm

Nonstop5h 24m

$405

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/9

Showing 1-10 of 22 results

Compare providers for flights from Las Vegas to Dulles Intl

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

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
Priceline	Price Accuracy1 star	Trust Score*3 stars
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Cheapflightsfares	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 Las Vegas-Washington, D.C. Dulles Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Las Vegas-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Las Vegas-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Las Vegas-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust eDreams the most. eDreams 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 Las Vegas-Washington, D.C. Dulles Intl Airport 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 Las Vegas to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Las Vegas 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 Las Vegas to Washington, D.C. Dulles Intl Airport

Prices

Airlines

Delays

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

Booking 67 days in advance of your planned departure date is, on average, the best time to get cheap flights from Las Vegas to Washington, D.C. Dulles Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, May is the cheapest month in which you can book a flight from Las Vegas to Washington, D.C. Dulles Intl Airport (average of $111). Flying from Las Vegas to Washington, D.C. Dulles Intl Airport in March is currently the most expensive (average of $304). 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 LAS to IAD?

It’s optimal to fly from Las Vegas to Washington, D.C. Dulles Intl Airport in the afternoon. By choosing this option you can save up to 53% on the cost of your flight, compared to a flight in the morning.

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

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

Airports

LAS

Try the self-service TSA screening at LAS for a quicker security process. Follow video instructions to breeze through.

IAD

Use the Silver Line Metro to reach downtown D.C. from IAD in under 40 minutes, a cost-effective option.

Our travel experts

Ramsey Qubein

Expert on IAD and LAS

Reviews of airlines servicing Dulles Intl

Read through reviews of airlines operating flights from Las Vegas to Washington, D.C. Dulles Intl Airport, such as Delta, United Airlines, and Frontier. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Delta

7.9

Good

8,007 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Delta

7.9

Good

8,007 reviews

Delta

7.9

Good

8,007 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

United Airlines

7.4

Good

9,092 reviews

Delta

7.9

Good

8,007 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Frontier

5.8

Fair

3,085 reviews

Delta

7.9

Good

8,007 reviews

Reviews

1 / 20

6.0

Good

Jim,Nov 2025

AVL - ATL

Related info for your journey

What airport do you fly from for flights from Las Vegas to Washington, D.C. Dulles Intl?
Las Vegas Harry Reid Intl (LAS) is the airport you will fly out of if you book a flight from Las Vegas to Washington, D.C. Dulles Intl. You should not have trouble finding flights to Washington, D.C. Dulles Intl from Harry Reid Intl; the airport handles an average of 6 outbound flights to Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 3 airlines have flights from the Las Vegas airport to Washington, D.C. Dulles Intl. It is only a 6.2 mi journey to Harry Reid Intl (LAS) from Las Vegas’s city center.
How long is the flight from Las Vegas to Washington, D.C. Dulles Intl Airport?
Delta and Alaska Airlines can get you from Las Vegas to Washington, D.C. Dulles Intl Airport in just under 8h 04m. Your travel time can differ by up to 1h 06m. There are 2059 mi between Las Vegas and Washington, D.C. Dulles Intl Airport. This flight may include one or multiple stops.
What are the cheapest airlines flying from Las Vegas to Washington, D.C. Dulles Intl Airport round-trip?
Flying on Frontier is currently your cheapest option to Washington, D.C. Dulles Intl Airport, with prices starting at $128. Additional round-trip tickets that might be worth considering are offered by United Airlines and Delta, with the lowest prices starting at $221 and $256, respectively. Users have found that Frontier is 65% cheaper than the other options available to this destination.
What are the cheapest airlines to fly from Las Vegas to Washington, D.C. Dulles Intl Airport one-way?
The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $66. However, be on the lookout for offers from United Airlines and Southwest, as they are both options that can get you from Las Vegas to Washington, D.C. Dulles Intl Airport for a low price.
What are the most reliable airlines from Las Vegas to Washington, D.C. Dulles Intl Airport?
No one likes to see their flight delayed. When booking a flight from Las Vegas to Washington, D.C. Dulles Intl Airport consider choosing Ethiopian Air (92%), United Airlines (91%) or Austrian Airlines (90%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from Las Vegas to Washington, D.C. Dulles Intl Airport?
While on average a flight from Las Vegas to Washington, D.C. Dulles Intl Airport is generally $774, our data shows the cheapest flight currently is $118. When looking at the most popular route, (Las Vegas Harry Reid Intl - Washington, D.C. Dulles Intl), you can expect to pay $141 for that flight.
Can I find deals for flights from Las Vegas to Dulles Intl that include hotel bookings?
Yes. In addition to deals on Las Vegas to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Las Vegas to Dulles Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Las Vegas to Dulles Intl.
Can I find deals for business class flights from Las Vegas to Dulles Intl?
Yes. Cheapflights offers flight deals from Las Vegas to Dulles Intl 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 Las Vegas to Washington, D.C. Dulles Intl Airport?
Currently, May is the cheapest month in which you can book a flight from Las Vegas to Washington, D.C. Dulles Intl Airport (average of $111). Flying from Las Vegas to Washington, D.C. Dulles Intl Airport in March is currently the most expensive (average of $304). 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 3 airlines flying from Las Vegas to Dulles Intl

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$148	Average$217	FlexibilityNo cancel fee	On-time62%
United Airlines	Cheapest$222	Average$398	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$256	Average$308	FlexibilityNo cancel fee	On-timeN/A

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$113+ Cheap flights from Las Vegas (LAS) to Dulles Intl (IAD)

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 1/6. 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 Las Vegas Harry Reid Intl to Washington, D.C. Dulles Intl are usually found in July or May, booked 67 days in advance, depart on a Thursday or Friday and return on a Saturday

Cheap flight deals from Las Vegas to Dulles Intl

Cheapest flights from Las Vegas to Dulles IntlExplore the most affordable flight options available from Las Vegas to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 9, 2025.

Explore the most affordable flight options available from Las Vegas to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 9, 2025.

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

Compare providers for flights from Las Vegas to Dulles Intl

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 Las Vegas to Dulles Intl in December.

Best time to book a flight from Las Vegas to Dulles Intl

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

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

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

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

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

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

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

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

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

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

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

AI-powered summary based on content written by travel experts. AI can make mistakes.

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

Airports

LAS

IAD

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Reviews of airlines servicing Dulles Intl

Read through reviews of airlines operating flights from Las Vegas to Washington, D.C. Dulles Intl Airport, such as Delta, United Airlines, and Frontier. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Las Vegas to Dulles Intl. 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 from for flights from Las Vegas to Washington, D.C. Dulles Intl?

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

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

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

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

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

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

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

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

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

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

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Alternative routes for Las Vegas to Dulles Intl

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Top 3 airlines flying from Las Vegas to Dulles Intl

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Cheapest flights from Las Vegas to Dulles Intl
Explore the most affordable flight options available from Las Vegas to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 9, 2025.