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

Historically, on average around 20% of flights between Washington, D.C. and Las Vegas have experienced a delay on any given week. The average delay length over the past 12 months has been 173 minutes.

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

Saturday is statistically the day of the week that experiences the fewest delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

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

According to our data, American Airlines have had the fewest delays on this route over the last 12 months, with no flights being classified as delayed.

What is the cheapest airline that flies from Washington, D.C. Dulles Intl to Las Vegas Harry Reid Intl?

United Airlines, Southwest, and Delta are the most popular carriers operating from Washington, D.C. Dulles Intl to Las Vegas Harry Reid Intl

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

Generally, flights departing in the morning tend to experience fewer delays. Flights departing at night have, in the past, seen delays more frequently in comparison.

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

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

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

The required travel and health documents for your Las Vegas Harry Reid Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Las Vegas Harry Reid Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$174 Cheap Flights from Washington, D.C. Dulles Intl Airport to Las Vegas in 2025/26

Q: How many flights depart from Washington, D.C. Dulles Intl Airport to Las Vegas on average per day?

As of November 2025, 4 flights take off from Washington, D.C. Dulles Intl Airport and land in Las Vegas each day. The most common flight departure time for this route is 19:00, with 43% of daily flights taking off in the evening.

Q: How many flights depart from Washington, D.C. Dulles Intl Airport to Las Vegas on average per week?

31 flights are operational weekly from Washington, D.C. Dulles Intl Airport to Las Vegas as of November 2025. The most popular departure day for this route is Mon, with 16% of flights per week taking off on this day.

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19:32 - 21:52IAD-LAS

5h 20mdirect

13:50 - 21:10LAS-IAD

4h 20mdirect

$347United Airlines

Find Deal

Thu, 11 Dec - Mon, 15 Dec

19:32 - 21:52IAD-LAS

5h 20mdirect

19:04 - 06:51LAS-IAD

8h 47m1 stop

$356United Airlines

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Thu, 11 Dec - Sat, 13 Dec

19:32 - 21:52IAD-LAS

5h 20mdirect

10:47 - 21:22LAS-IAD

7h 35m1 stop

$362United Airlines

Find Deal

Sun, 7 Dec - Wed, 10 Dec

07:00 - 11:10IAD-LAS

7h 10m1 stop

06:00 - 16:50LAS-IAD

7h 50m1 stop

$370Southwest

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Sat, 17 Jan - Tue, 20 Jan

16:11 - 20:32IAD-LAS

7h 21m1 stop

00:59 - 11:23LAS-IAD

7h 24m1 stop

$378United Airlines

Find Deal

Mon, 19 Jan - Wed, 21 Jan

19:35 - 00:27IAD-LAS

7h 52m1 stop

11:47 - 23:08LAS-IAD

8h 21m1 stop

$396Delta

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Wed, 10 Dec - Sat, 13 Dec

07:01 - 13:44IAD-LAS

9h 43m1 stop

00:44 - 11:35LAS-IAD

7h 51m1 stop

$421Delta

Find Deal

Wed, 3 Dec - Wed, 3 Dec

09:05 - 16:35IAD-LAS

10h 30m2 stops

06:00 - 16:50LAS-IAD

7h 50m1 stop

$438Southwest

Find Deal

Wed, 14 Jan - Sun, 18 Jan

17:26 - 22:31IAD-LAS

8h 05m1 stop

06:00 - 17:25LAS-IAD

8h 25m1 stop

$440Alaska Airlines

Find Deal

Wed, 11 Feb - Sat, 14 Feb

17:26 - 22:31IAD-LAS

8h 05m1 stop

06:00 - 17:04LAS-IAD

8h 04m1 stop

$450Alaska Airlines

Find Deal

Tue, 27 Jan - Sun, 1 Feb

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

Our best United Airlines deals on Washington, D.C. Dulles Intl Airport to Las Vegas flight tickets

United Airlines

11 Dec

IAD19:32Washington, D.C. Dulles Intl

5h 20m

LAS21:52Las Vegas Harry Reid Intl

15 Dec

LAS13:50Las Vegas Harry Reid Intl

4h 20m

IAD21:10Washington, D.C. Dulles Intl

$347

Find similar

United Airlines

11 Dec

IAD19:32Washington, D.C. Dulles Intl

5h 20m

LAS21:52Las Vegas Harry Reid Intl

13 Dec

LAS19:04Las Vegas Harry Reid Intl

8h 47m

1 stop

IAD06:51Washington, D.C. Dulles Intl

$356

Find similar

United Airlines

7 Dec

IAD19:32Washington, D.C. Dulles Intl

5h 20m

LAS21:52Las Vegas Harry Reid Intl

10 Dec

LAS10:47Las Vegas Harry Reid Intl

7h 35m

1 stop

IAD21:22Washington, D.C. Dulles Intl

$362

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

Our best Delta deals on Washington, D.C. Dulles Intl Airport to Las Vegas flight tickets

Delta

10 Dec

IAD19:35Washington, D.C. Dulles Intl

7h 52m

1 stop

LAS00:27Las Vegas Harry Reid Intl

13 Dec

LAS11:47Las Vegas Harry Reid Intl

8h 21m

1 stop

IAD23:08Washington, D.C. Dulles Intl

$396

Find similar

Delta

3 Dec

IAD07:01Washington, D.C. Dulles Intl

9h 43m

1 stop

LAS13:44Las Vegas Harry Reid Intl

3 Dec

LAS00:44Las Vegas Harry Reid Intl

7h 51m

1 stop

IAD11:35Washington, D.C. Dulles Intl

$421

Find similar

Delta

31 Dec

IAD16:17Washington, D.C. Dulles Intl

7h 39m

1 stop

LAS20:56Las Vegas Harry Reid Intl

5 Jan

LAS13:10Las Vegas Harry Reid Intl

7h 27m

1 stop

IAD23:37Washington, D.C. Dulles Intl

$427

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momondo 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.

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Route

Depart

Return

Price

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Thu 11/12

19:32-21:52

Nonstop5h 20m

Las Vegas Harry Reid Intl

Mon 15/12

13:50-21:10

Nonstop4h 20m

$347

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Thu 11/12

19:32-21:52

Nonstop5h 20m

Las Vegas Harry Reid Intl

Sat 13/12

19:04-06:51

1 stop8h 47m

$356

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sun 7/12

19:32-21:52

Nonstop5h 20m

Las Vegas Harry Reid Intl

Wed 10/12

10:47-21:22

1 stop7h 35m

$362

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sat 17/1

07:00-11:10

1 stop7h 10m

Las Vegas Harry Reid Intl

Tue 20/1

06:00-16:50

1 stop7h 50m

$370

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Mon 19/1

16:11-20:32

1 stop7h 21m

Las Vegas Harry Reid Intl

Wed 21/1

00:59-11:23

1 stop7h 24m

$378

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Wed 10/12

19:35-00:27

1 stop7h 52m

Las Vegas Harry Reid Intl

Sat 13/12

11:47-23:08

1 stop8h 21m

$396

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Wed 3/12

07:01-13:44

1 stop9h 43m

Las Vegas Harry Reid Intl

Wed 3/12

00:44-11:35

1 stop7h 51m

$421

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Wed 14/1

09:05-16:35

2 stops10h 30m

Las Vegas Harry Reid Intl

Sun 18/1

06:00-16:50

1 stop7h 50m

$438

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Wed 11/2

17:26-22:31

1 stop8h 05m

Las Vegas Harry Reid Intl

Sat 14/2

06:00-17:25

1 stop8h 25m

$440

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Tue 27/1

17:26-22:31

1 stop8h 05m

Las Vegas Harry Reid Intl

Sun 1/2

06:00-17:04

1 stop8h 04m

$450

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

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

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What is the cheapest month to fly to Las Vegas?

The cheapest month to fly to Las Vegas from Washington, D.C. Dulles Intl Airport is in August. Flight prices, which tend to average around $381, are often lower during this time because this is during the off-season. If you aren’t able to travel to Las Vegas during the month of August, then flying in July is also cheap. Prices for this month can be found on momondo for an average of $387.

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

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

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

You are more likely to see cheaper flights to Las Vegas from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Las Vegas for around $617 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Las Vegas from Washington, D.C. Dulles Intl Airport for as low as $489 on momondo.

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

There are 2 cabin classes available to choose from on Washington, D.C. Dulles Intl to Las Vegas Harry Reid Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

As of November 2025, prices for Washington, D.C. Dulles Intl Airport to Las Vegas flights are approximately 9% cheaper when compared to flights at the same time last year.

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

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

Estimated return price

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

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

Fastest flight time	5h 00m
Direct flights	Every day
Airports in Las Vegas	1 airport

The fastest flight from Washington, D.C. Dulles Intl Airport to Las Vegas takes 5h 00m

Direct flights go from Washington, D.C. Dulles Intl Airport to Las Vegas every day.

There is 1 airport near Las Vegas: Las Vegas Harry Reid Intl (LAS)

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How far is Washington, D.C. Dulles Intl to Las Vegas Harry Reid Intl by plane?
The straight-line distance from Washington, D.C. Dulles Intl to Las Vegas Harry Reid Intl is 3310.3 km. Typically, this will take 5h 13m by plane in normal conditions.
When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Las Vegas Harry Reid Intl Airport?
Prices for flights from Washington, D.C. Dulles Intl Airport to Las Vegas Harry Reid Intl Airport were last updated today.
How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Las Vegas Harry Reid Intl Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Dulles Intl Airport to Las Vegas Harry Reid Intl Airport.
What documentation or ID do you need to fly to Las Vegas Harry Reid Intl Airport?
The required travel and health documents for your Las Vegas Harry Reid Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Las Vegas Harry Reid Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Washington, D.C. Dulles Intl Airport to Las Vegas?
Based on momondo bookings for flights between Washington, D.C. Dulles Intl Airport and Las Vegas, the leading plane model is Boeing 737 MAX 9, making up 23.90% of the total bookings. Other popular models include Boeing 737-900 with 21.45%, Airbus A321neo with 12.97%, and Boeing 737 MAX 8 with 11.74%.

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Las Vegas from Washington, D.C..

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

All flight searches from Washington, D.C. to Las Vegas on momondo can be filtered to show those which offer flexible booking policies.

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

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

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

If you are simply researching potential flights to Las Vegas, momondo offers a useful price alert feature which will track prices for flights to Las Vegas from Washington, D.C. and alert you when they change.

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Cheap flights from Washington, D.C. Dulles Intl Airport to Las Vegas from $174

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

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

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

What is the cheapest month to fly to Las Vegas?

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

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

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

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

There are 2 cabin classes available to choose from on Washington, D.C. Dulles Intl to Las Vegas Harry Reid Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

As of November 2025, prices for Washington, D.C. Dulles Intl Airport to Las Vegas flights are approximately 9% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from Washington, D.C. Dulles Intl to Las Vegas Harry Reid Intl?

United Airlines, Southwest, and Delta are the most popular carriers operating from Washington, D.C. Dulles Intl to Las Vegas Harry Reid Intl

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

Historically, on average around 20% of flights between Washington, D.C. and Las Vegas have experienced a delay on any given week. The average delay length over the past 12 months has been 173 minutes.

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

Generally, flights departing in the morning tend to experience fewer delays. Flights departing at night have, in the past, seen delays more frequently in comparison.

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

Saturday is statistically the day of the week that experiences the fewest delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

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

According to our data, American Airlines have had the fewest delays on this route over the last 12 months, with no flights being classified as delayed.

How many flights depart from Washington, D.C. Dulles Intl Airport to Las Vegas on average per day?

As of November 2025, 4 flights take off from Washington, D.C. Dulles Intl Airport and land in Las Vegas each day. The most common flight departure time for this route is 19:00, with 43% of daily flights taking off in the evening.

How many flights depart from Washington, D.C. Dulles Intl Airport to Las Vegas on average per week?

31 flights are operational weekly from Washington, D.C. Dulles Intl Airport to Las Vegas as of November 2025. The most popular departure day for this route is Mon, with 16% of flights per week taking off on this day.

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

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

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

Fastest flight time

Direct flights

Airports in Las Vegas

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

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

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

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

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

Travelling to a place near Las Vegas?

Why use momondo?

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

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

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

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

An easier way to manage your Las Vegas trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Nevada