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

United Airlines is the most popular carrier operating from Washington, D.C. Dulles Intl to Las Vegas Harry Reid Intl

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.

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.

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

Historically, on average around 17% 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 179 minutes.

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

According to our data, United Airlines have had the fewest delays on this route over the last 12 months, with about 16% of their flights experiencing any sort of delay.

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.

$177 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 December 2025, 6 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 12:00, with 40% of daily flights taking off in the afternoon.

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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Las Vegas

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17:30 - 21:25

IAD

LAS

6h 55m1 stop

10:15 - 21:55

LAS

IAD

8h 40m2 stops

$339Southwest

Wed, 21 Jan - Tue, 27 Jan

12:50 - 18:29

IAD

LAS

8h 39m1 stop

23:50 - 07:13

LAS

IAD

4h 23mdirect

$340United Airlines

Tue, 20 Jan - Fri, 23 Jan

19:36 - 21:57

IAD

LAS

5h 21mdirect

23:50 - 07:13

LAS

IAD

4h 23mdirect

$342United Airlines

Sun, 11 Jan - Fri, 16 Jan

19:36 - 21:57

IAD

LAS

5h 21mdirect

23:50 - 07:13

LAS

IAD

4h 23mdirect

$343United Airlines

Mon, 26 Jan - Thu, 29 Jan

12:35 - 14:59

IAD

LAS

5h 24mdirect

23:50 - 07:13

LAS

IAD

4h 23mdirect

$345United Airlines

Wed, 7 Jan - Thu, 8 Jan

17:45 - 20:22

IAD

LAS

5h 37mdirect

12:20 - 22:16

LAS

IAD

6h 56m1 stop

$348United Airlines

Tue, 17 Feb - Sat, 21 Feb

12:35 - 17:11

IAD

LAS

7h 36m1 stop

13:55 - 21:25

LAS

IAD

4h 30mdirect

$349United Airlines

Sun, 18 Jan - Thu, 22 Jan

19:36 - 21:57

IAD

LAS

5h 21mdirect

19:06 - 07:14

LAS

IAD

9h 08m1 stop

$351United Airlines

Sun, 11 Jan - Fri, 16 Jan

08:30 - 10:57

IAD

LAS

5h 27mdirect

13:55 - 21:25

LAS

IAD

4h 30mdirect

$352United Airlines

Wed, 14 Jan - Wed, 28 Jan

17:26 - 23:28

IAD

LAS

9h 02m1 stop

06:00 - 17:04

LAS

IAD

8h 04m1 stop

$354Alaska Airlines

Mon, 19 Jan - Thu, 22 Jan

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

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

Southwest

14 Jan

IAD16:30Washington, D.C. Dulles Intl

7h 15m

1 stop

LAS20:45Las Vegas Harry Reid Intl

21 Jan

LAS10:15Las Vegas Harry Reid Intl

8h 40m

2 stops

IAD21:55Washington, D.C. Dulles Intl

$339

Find similar

Southwest

28 Jan

IAD16:30Washington, D.C. Dulles Intl

8h 55m

1 stop

LAS22:25Las Vegas Harry Reid Intl

31 Jan

LAS10:10Las Vegas Harry Reid Intl

9h 00m

2 stops

IAD22:10Washington, D.C. Dulles Intl

$363

Find similar

Southwest

20 Jan

IAD09:05Washington, D.C. Dulles Intl

10h 30m

2 stops

LAS16:35Las Vegas Harry Reid Intl

23 Jan

LAS06:00Las Vegas Harry Reid Intl

7h 50m

1 stop

IAD16:50Washington, D.C. Dulles Intl

$368

Find similar

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

20 Jan

IAD12:50Washington, D.C. Dulles Intl

8h 39m

1 stop

LAS18:29Las Vegas Harry Reid Intl

23 Jan

LAS23:50Las Vegas Harry Reid Intl

4h 23m

IAD07:13Washington, D.C. Dulles Intl

$340

Find similar

United Airlines

11 Jan

IAD19:36Washington, D.C. Dulles Intl

5h 21m

LAS21:57Las Vegas Harry Reid Intl

16 Jan

LAS23:50Las Vegas Harry Reid Intl

4h 23m

IAD07:13Washington, D.C. Dulles Intl

$342

Find similar

United Airlines

26 Jan

IAD19:36Washington, D.C. Dulles Intl

5h 21m

LAS21:57Las Vegas Harry Reid Intl

29 Jan

LAS23:50Las Vegas Harry Reid Intl

4h 23m

IAD07:13Washington, D.C. Dulles Intl

$343

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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

Wed 21/1

17:30-21:25

1 stop6h 55m

Las Vegas Harry Reid Intl

Tue 27/1

10:15-21:55

2 stops8h 40m

$339

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Tue 20/1

12:50-18:29

1 stop8h 39m

Las Vegas Harry Reid Intl

Fri 23/1

23:50-07:13

Nonstop4h 23m

$340

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sun 11/1

19:36-21:57

Nonstop5h 21m

Las Vegas Harry Reid Intl

Fri 16/1

23:50-07:13

Nonstop4h 23m

$342

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Mon 26/1

19:36-21:57

Nonstop5h 21m

Las Vegas Harry Reid Intl

Thu 29/1

23:50-07:13

Nonstop4h 23m

$343

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Wed 7/1

12:35-14:59

Nonstop5h 24m

Las Vegas Harry Reid Intl

Thu 8/1

23:50-07:13

Nonstop4h 23m

$345

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Tue 17/2

17:45-20:22

Nonstop5h 37m

Las Vegas Harry Reid Intl

Sat 21/2

12:20-22:16

1 stop6h 56m

$348

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sun 18/1

12:35-17:11

1 stop7h 36m

Las Vegas Harry Reid Intl

Thu 22/1

13:55-21:25

Nonstop4h 30m

$349

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sun 11/1

19:36-21:57

Nonstop5h 21m

Las Vegas Harry Reid Intl

Fri 16/1

19:06-07:14

1 stop9h 08m

$351

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Wed 14/1

08:30-10:57

Nonstop5h 27m

Las Vegas Harry Reid Intl

Wed 28/1

13:55-21:25

Nonstop4h 30m

$352

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Mon 19/1

17:26-23:28

1 stop9h 02m

Las Vegas Harry Reid Intl

Thu 22/1

06:00-17:04

1 stop8h 04m

$354

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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 $374, 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 $378.

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 $599 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 $476 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 December 2025, prices for Washington, D.C. Dulles Intl Airport to Las Vegas flights are approximately 4% more expensive 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 24m
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 24m

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 19m 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 26.76% of the total bookings. Other popular models include Boeing 737-900 with 24.54%, Boeing 737 MAX 8 with 11.60%, and Airbus A321neo with 11.48%.

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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 $177

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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 December 2025, prices for Washington, D.C. Dulles Intl Airport to Las Vegas flights are approximately 4% more expensive 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 is the most popular carrier 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 17% 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 179 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, United Airlines have had the fewest delays on this route over the last 12 months, with about 16% of their flights experiencing any sort of delay.

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

As of December 2025, 6 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 12:00, with 40% of daily flights taking off in the afternoon.

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

42 flights are operational weekly from Washington, D.C. Dulles Intl Airport to Las Vegas as of December 2025. The most popular departure day for this route is Mon, with 14% 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

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