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

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

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

6 flights are operational daily from Washington, D.C. to Las Vegas as of December 2025. The most popular departure time for this route is 19:00, with 41% of flights per day taking off in the afternoon.

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.

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

42 flights are operational weekly from Washington, D.C. 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.

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 about 8% of their flights experiencing any sort of delay.

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

Historically, on average around 19% 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 167 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 in the early afternoon have, in the past, seen delays more frequently in comparison.

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

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

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. to Las Vegas Harry Reid Intl Airport.

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

The travel and health documents you'll need for your trip to Las Vegas Harry Reid Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Las Vegas Harry Reid Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$178 Cheap Flights from Washington, D.C. to Las Vegas in 2025/26

Q: What is the typical price of a round-trip flight between Washington, D.C. and Las Vegas?

Prices are currently low for flights on this route. Typical prices usually range from $500 to $891. The lowest price recently found on this route was $337.

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One-way

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Enter your travel dates to find the best prices.

16:30 - 20:45

IAD

LAS

7h 15m1 stop

10:15 - 21:55

LAS

IAD

8h 40m2 stops

$337Southwest

Wed, 14 Jan - Wed, 21 Jan

16:11 - 20:32

IAD

LAS

7h 21m1 stop

10:44 - 20:35

LAS

IAD

6h 51m1 stop

$354United Airlines

Sat, 24 Jan - Mon, 26 Jan

19:36 - 21:57

IAD

LAS

5h 21mdirect

12:24 - 22:18

LAS

IAD

6h 54m1 stop

$355United Airlines

Sun, 18 Jan - Tue, 20 Jan

14:24 - 19:02

IAD

LAS

7h 38m1 stop

23:50 - 07:13

LAS

IAD

4h 23mdirect

$364United Airlines

Mon, 26 Jan - Mon, 26 Jan

16:30 - 20:45

IAD

LAS

7h 15m1 stop

08:45 - 21:55

LAS

IAD

10h 10m2 stops

$369Southwest

Mon, 12 Jan - Wed, 14 Jan

12:35 - 17:11

IAD

LAS

7h 36m1 stop

12:24 - 22:18

LAS

IAD

6h 54m1 stop

$370United Airlines

Sun, 18 Jan - Tue, 20 Jan

19:36 - 21:57

IAD

LAS

5h 21mdirect

08:30 - 16:00

LAS

IAD

4h 30mdirect

$375United Airlines

Thu, 15 Jan - Sat, 17 Jan

19:36 - 21:57

IAD

LAS

5h 21mdirect

23:50 - 07:13

LAS

IAD

4h 23mdirect

$382United Airlines

Sat, 17 Jan - Wed, 21 Jan

12:23 - 19:14

IAD

LAS

9h 51m1 stop

23:27 - 11:43

LAS

IAD

9h 16m1 stop

$387Delta

Thu, 22 Jan - Mon, 26 Jan

12:50 - 15:17

IAD

LAS

5h 27mdirect

08:30 - 16:00

LAS

IAD

4h 30mdirect

$388United Airlines

Thu, 1 Jan - Tue, 6 Jan

Delta flights from Washington, D.C. to Las Vegas

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

Delta

22 Jan

IAD12:23Washington, D.C. Dulles Intl

9h 51m

1 stop

LAS19:14Las Vegas Harry Reid Intl

26 Jan

LAS23:27Las Vegas Harry Reid Intl

9h 16m

1 stop

IAD11:43Washington, D.C. Dulles Intl

$387

Find similar

Delta

7 Jan

IAD06:20Washington, D.C. Dulles Intl

9h 34m

1 stop

LAS12:54Las Vegas Harry Reid Intl

9 Jan

LAS08:45Las Vegas Harry Reid Intl

11h 52m

2 stops

IAD23:37Washington, D.C. Dulles Intl

$394

Find similar

Delta

18 Feb

IAD07:30Washington, D.C. Dulles Intl

13h 31m

1 stop

LAS18:01Las Vegas Harry Reid Intl

3 Mar

LAS11:05Las Vegas Harry Reid Intl

9h 05m

1 stop

IAD23:10Washington, D.C. Dulles Intl

$429

Find similar

Alaska Airlines flights from Washington, D.C. to Las Vegas

Our best Alaska Airlines deals on Washington, D.C. to Las Vegas flight tickets

Alaska Airlines

7 Jan

IAD17:26Washington, D.C. Dulles Intl

8h 05m

1 stop

LAS22:31Las Vegas Harry Reid Intl

11 Jan

LAS06:00Las Vegas Harry Reid Intl

8h 04m

1 stop

IAD17:04Washington, D.C. Dulles Intl

$397

Find similar

Alaska Airlines

17 Jan

IAD17:26Washington, D.C. Dulles Intl

8h 05m

1 stop

LAS22:31Las Vegas Harry Reid Intl

18 Jan

LAS06:00Las Vegas Harry Reid Intl

8h 04m

1 stop

IAD17:04Washington, D.C. Dulles Intl

$399

Find similar

Alaska Airlines

18 Jan

IAD17:26Washington, D.C. Dulles Intl

9h 02m

1 stop

LAS23:28Las Vegas Harry Reid Intl

20 Jan

LAS08:50Las Vegas Harry Reid Intl

29h 14m

2 stops

IAD17:04Washington, D.C. Dulles Intl

$418

Find similar

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. 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

Wed 14/1

16:30-20:45

1 stop7h 15m

Las Vegas Harry Reid Intl

Wed 21/1

10:15-21:55

2 stops8h 40m

$337

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sat 24/1

16:11-20:32

1 stop7h 21m

Las Vegas Harry Reid Intl

Mon 26/1

10:44-20:35

1 stop6h 51m

$354

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sun 18/1

19:36-21:57

Nonstop5h 21m

Las Vegas Harry Reid Intl

Tue 20/1

12:24-22:18

1 stop6h 54m

$355

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Mon 26/1

14:24-19:02

1 stop7h 38m

Las Vegas Harry Reid Intl

Mon 26/1

23:50-07:13

Nonstop4h 23m

$364

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Mon 12/1

16:30-20:45

1 stop7h 15m

Las Vegas Harry Reid Intl

Wed 14/1

08:45-21:55

2 stops10h 10m

$369

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

Tue 20/1

12:24-22:18

1 stop6h 54m

$370

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Thu 15/1

19:36-21:57

Nonstop5h 21m

Las Vegas Harry Reid Intl

Sat 17/1

08:30-16:00

Nonstop4h 30m

$375

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sat 17/1

19:36-21:57

Nonstop5h 21m

Las Vegas Harry Reid Intl

Wed 21/1

23:50-07:13

Nonstop4h 23m

$382

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Thu 22/1

12:23-19:14

1 stop9h 51m

Las Vegas Harry Reid Intl

Mon 26/1

23:27-11:43

1 stop9h 16m

$387

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Thu 1/1

12:50-15:17

Nonstop5h 27m

Las Vegas Harry Reid Intl

Tue 6/1

08:30-16:00

Nonstop4h 30m

$388

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Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Washington, D.C. 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

Prices

Airlines

Delays

Other information

What is the typical price of a round-trip flight between Washington, D.C. and Las Vegas?

What is the cheapest month to fly to Las Vegas?

The cheapest month to fly to Las Vegas from Washington, D.C. is in August. Flight prices, which tend to average around $405, 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 $418.

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

Fly from Washington, D.C. Reagan-National to Las Vegas Harry Reid Intl for the best Washington, D.C. - 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. when booking weeks ahead of your departure date. In general, you can expect to find flights to Las Vegas for around $588 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. for as low as $457 on momondo.

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

There are 2 cabin classes available to choose from on Washington, D.C. 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.

Can stopping save me money on Washington, D.C. to Las Vegas flights?

You could potentially save up to 54% on your flight if you consider stops on a Washington, D.C. to Las Vegas flight.

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

As of December 2025, prices for Washington, D.C. to Las Vegas flights are approximately 30% more expensive when compared to flights at the same time last year.

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

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. 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. to Las Vegas (WAS to LAS) flight deals and tips

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

Best price found	$250
Fastest flight time	5h 24m
Direct flights	Every day
Airports in Las Vegas	1 airport

The best flight deal from Washington, D.C. to Las Vegas found on momondo in the last 72 hours is $250

The fastest flight from Washington, D.C. to Las Vegas takes 5h 24m

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

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

Search flight deals

How far is Washington, D.C. to Las Vegas Harry Reid Intl by plane?
Las Vegas Harry Reid Intl is 3346.4 km away from Washington, D.C.. 5h 21m is a normal flight duration for this route.
When did momondo last update prices for flights from Washington, D.C. to Las Vegas Harry Reid Intl Airport?
Prices for flights from Washington, D.C. to Las Vegas Harry Reid Intl Airport were last updated today.
How old do you have to be to fly from Washington, D.C. to Las Vegas Harry Reid Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and stopovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Washington, D.C. to Las Vegas Harry Reid Intl Airport.
What documentation or ID do you need to fly to Las Vegas Harry Reid Intl Airport?
The travel and health documents you'll need for your trip to Las Vegas Harry Reid Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Las Vegas Harry Reid Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Washington, D.C. to Las Vegas?
momondo data reveals that the most frequently booked plane model on the route from Washington, D.C. to Las Vegas is Boeing 737 MAX 9, representing 19.87% of all bookings. The subsequent popular models are Boeing 737 MAX 8 at 19.28%, Boeing 737-900 at 17.67%, and Airbus A321neo at 13.52%.

Furnace Creek

Primm

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Washington, D.C. to Las Vegas for you.

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

Yes. momondo allows you to filter the results for Washington, D.C. to Las Vegas flights to just show those with flexible booking policies.

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

momondo helps you find the best flight between Washington, D.C. and Las Vegas by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes momondo offers price alerts on flights to Las Vegas from Washington, D.C.. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Cheap flights from Washington, D.C. to Las Vegas from $178

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. to Las Vegas departing on 23/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Delta flights from Washington, D.C. to Las Vegas

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Our best Alaska Airlines deals on Washington, D.C. to Las Vegas flight tickets

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See travel insights to Las Vegas from

How to get the cheapest flight ticket from Washington, D.C. 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 typical price of a round-trip flight between Washington, D.C. and Las Vegas?

What is the cheapest month to fly to Las Vegas?

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

Fly from Washington, D.C. Reagan-National to Las Vegas Harry Reid Intl for the best Washington, D.C. - 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. to Las Vegas Harry Reid Intl flights?

There are 2 cabin classes available to choose from on Washington, D.C. 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.

Can stopping save me money on Washington, D.C. to Las Vegas flights?

You could potentially save up to 54% on your flight if you consider stops on a Washington, D.C. to Las Vegas flight.

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

As of December 2025, prices for Washington, D.C. to Las Vegas flights are approximately 30% more expensive when compared to flights at the same time last year.

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

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

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

Historically, on average around 19% 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 167 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 in the early afternoon 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 about 8% of their flights experiencing any sort of delay.

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

6 flights are operational daily from Washington, D.C. to Las Vegas as of December 2025. The most popular departure time for this route is 19:00, with 41% of flights per day taking off in the afternoon.

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

42 flights are operational weekly from Washington, D.C. 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. to Las Vegas

Cheap Washington, D.C. to Las Vegas (WAS to LAS) flight deals and tips

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

Best price found

Fastest flight time

Direct flights

Airports in Las Vegas

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

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

How old do you have to be to fly from Washington, D.C. 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. 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