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Cheap flights from Washington, D.C. Dulles Intl Airport to Las Vegas from $102

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. Dulles Intl Airport to Las Vegas departing on 21/8. 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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Find the cheapest flights from Washington, D.C. Dulles Intl Airport to Las Vegas

Cheap return flights

United Airlines Logo
17:55 - 19:59IAD-LAS
5h 04mdirect
United Airlines Logo
23:59 - 07:34LAS-IAD
4h 35mdirect
$202United Airlines
Find Deal
Sat, 9 Aug - Thu, 14 Aug
United Airlines Logo
22:10 - 00:14IAD-LAS
5h 04mdirect
United Airlines Logo
08:30 - 16:07LAS-IAD
4h 37mdirect
$211United Airlines
Find Deal
Fri, 8 Aug - Tue, 12 Aug
United Airlines Logo
19:59 - 21:58IAD-LAS
4h 59mdirect
United Airlines Logo
18:49 - 06:51LAS-IAD
9h 02m1 stop
$220United Airlines
Find Deal
Sat, 6 Sep - Fri, 12 Sep
Southwest Logo
16:30 - 23:15IAD-LAS
9h 45m1 stop
Southwest Logo
06:05 - 15:45LAS-IAD
6h 40m1 stop
$233Southwest
Find Deal
Thu, 4 Sep - Mon, 8 Sep
United Airlines Logo
19:59 - 21:58IAD-LAS
4h 59mdirect
United Airlines Logo
22:45 - 06:20LAS-IAD
4h 35mdirect
$234United Airlines
Find Deal
Thu, 11 Sep - Tue, 16 Sep
Southwest Logo
05:45 - 12:45IAD-LAS
10h 00m2 stops
Southwest Logo
05:40 - 16:20LAS-IAD
7h 40m1 stop
$240Southwest
Find Deal
Wed, 27 Aug - Sat, 30 Aug
Southwest Logo
16:05 - 20:05IAD-LAS
7h 00m1 stop
Southwest Logo
06:05 - 18:15LAS-IAD
9h 10m1 stop
$242Southwest
Find Deal
Sun, 7 Sep - Thu, 11 Sep
Alaska Airlines Logo
17:52 - 09:53IAD-LAS
19h 01m1 stop
Alaska Airlines Logo
17:14 - 16:47LAS-IAD
20h 33m1 stop
$305Alaska Airlines
Find Deal
Wed, 20 Aug - Tue, 26 Aug
Alaska Airlines Logo
17:25 - 09:37IAD-LAS
19h 12m1 stop
Alaska Airlines Logo
19:29 - 18:59LAS-IAD
20h 30m1 stop
$340Alaska Airlines
Find Deal
Tue, 29 Jul - Mon, 4 Aug
Alaska Airlines Logo
17:52 - 23:26IAD-LAS
8h 34m1 stop
Alaska Airlines Logo
19:04 - 07:33LAS-IAD
9h 29m1 stop
$343Alaska Airlines
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Mon, 29 Sep - Tue, 30 Sep

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
9 Aug
IAD17:55Washington, D.C. Dulles Intl
5h 04m
LAS19:59Las Vegas Harry Reid Intl
14 Aug
LAS23:59Las Vegas Harry Reid Intl
4h 35m
IAD07:34Washington, D.C. Dulles Intl
$202
Find similar
United Airlines
8 Aug
IAD22:10Washington, D.C. Dulles Intl
5h 04m
LAS00:14Las Vegas Harry Reid Intl
12 Aug
LAS08:30Las Vegas Harry Reid Intl
4h 37m
IAD16:07Washington, D.C. Dulles Intl
$211
Find similar
United Airlines
6 Sept
IAD19:59Washington, D.C. Dulles Intl
4h 59m
LAS21:58Las Vegas Harry Reid Intl
12 Sept
LAS18:49Las Vegas Harry Reid Intl
9h 02m
1 stop
IAD06:51Washington, D.C. Dulles Intl
$220
Find similar

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
4 Sept
IAD16:30Washington, D.C. Dulles Intl
9h 45m
1 stop
LAS23:15Las Vegas Harry Reid Intl
8 Sept
LAS06:05Las Vegas Harry Reid Intl
6h 40m
1 stop
IAD15:45Washington, D.C. Dulles Intl
$233
Find similar
Southwest
27 Aug
IAD05:45Washington, D.C. Dulles Intl
10h 00m
2 stops
LAS12:45Las Vegas Harry Reid Intl
30 Aug
LAS05:40Las Vegas Harry Reid Intl
7h 40m
1 stop
IAD16:20Washington, D.C. Dulles Intl
$240
Find similar
Southwest
7 Sept
IAD16:05Washington, D.C. Dulles Intl
7h 00m
1 stop
LAS20:05Las Vegas Harry Reid Intl
11 Sept
LAS06:05Las Vegas Harry Reid Intl
9h 10m
1 stop
IAD18:15Washington, D.C. Dulles Intl
$242
Find similar

See travel insights to Las Vegas from

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 typical price of a round-trip flight between Washington, D.C. Dulles Intl Airport 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. Dulles Intl Airport is in June. Flight prices, which tend to average around $482, 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 June, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $483.

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 $655 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 $584 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 July 2025, prices for Washington, D.C. Dulles Intl Airport to Las Vegas flights are approximately 39% 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

Best price found

$102

Fastest flight time

4h 59m

Direct flights

Every day

Airports in Las Vegas

1 airport
The best one-way flight to Las Vegas from Washington, D.C. Dulles Intl Airport in the past 72 hours is $102. The best return flight deal from Washington, D.C. Dulles Intl Airport to Las Vegas found on momondo in the last 72 hours is $202.
The fastest flight from Washington, D.C. Dulles Intl Airport to Las Vegas takes 4h 59m
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 4h 59m 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?

Travelling to a place near Las Vegas?

Book flights to Las Vegas if you plan to visit one of these locations
Furnace Creek
Primm

Why use momondo?

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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