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Cheap flights from Washington, D.C. Dulles Intl Airport to Las Vegas from $192

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 6/5. 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

Enter your travel dates to find the best prices.
United Airlines Logo
12:39 - 15:07
IAD
-
LAS
5h 28mdirect
United Airlines Logo
14:00 - 21:25
LAS
-
IAD
4h 25mdirect
$382United Airlines
Tue, 10 Mar - Tue, 24 Mar
Alaska Airlines Logo
07:05 - 15:11
IAD
-
LAS
11h 06m
1 stop
Alaska Airlines Logo
06:00 - 17:27
LAS
-
IAD
8h 27m
1 stop
$389Alaska Airlines
Tue, 24 Feb - Sat, 28 Feb
United Airlines Logo
16:10 - 22:33
IAD
-
LAS
9h 23m
1 stop
United Airlines Logo
08:04 - 15:31
LAS
-
IAD
4h 27mdirect
$390United Airlines
Wed, 11 Mar - Wed, 18 Mar
United Airlines Logo
17:45 - 20:22
IAD
-
LAS
5h 37mdirect
United Airlines Logo
13:30 - 00:28
LAS
-
IAD
7h 58m
1 stop
$396United Airlines
Tue, 3 Mar - Tue, 10 Mar
Alaska Airlines Logo
07:05 - 22:28
IAD
-
LAS
18h 23m
2 stops
Alaska Airlines Logo
06:00 - 17:27
LAS
-
IAD
8h 27m
1 stop
$400Alaska Airlines
Tue, 24 Feb - Tue, 3 Mar
Alaska Airlines Logo
07:05 - 18:18
IAD
-
LAS
14h 13m
2 stops
Alaska Airlines Logo
06:00 - 17:27
LAS
-
IAD
8h 27m
1 stop
$407Alaska Airlines
Tue, 24 Feb - Sat, 28 Feb
United Airlines Logo
17:45 - 20:22
IAD
-
LAS
5h 37mdirect
United Airlines Logo
08:04 - 15:31
LAS
-
IAD
4h 27mdirect
$409United Airlines
Tue, 3 Mar - Tue, 10 Mar
United Airlines Logo
08:30 - 12:59
IAD
-
LAS
7h 29m
1 stop
United Airlines Logo
14:34 - 23:59
LAS
-
IAD
6h 25m
1 stop
$410United Airlines
Wed, 11 Mar - Wed, 18 Mar
United Airlines Logo
12:59 - 15:21
IAD
-
LAS
5h 22mdirect
United Airlines Logo
13:11 - 20:54
LAS
-
IAD
4h 43mdirect
$419United Airlines
Tue, 7 Apr - Tue, 21 Apr
United Airlines Logo
09:00 - 11:21
IAD
-
LAS
5h 21mdirect
United Airlines Logo
13:11 - 20:54
LAS
-
IAD
4h 43mdirect
$422United Airlines
Wed, 15 Apr - Tue, 21 Apr

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
10 Mar
IAD12:39Washington, D.C. Dulles Intl
5h 28m
LAS15:07Las Vegas Harry Reid Intl
24 Mar
LAS14:00Las Vegas Harry Reid Intl
4h 25m
IAD21:25Washington, D.C. Dulles Intl
$382
United Airlines
11 Mar
IAD16:10Washington, D.C. Dulles Intl
9h 23m
1 stop
LAS22:33Las Vegas Harry Reid Intl
18 Mar
LAS08:04Las Vegas Harry Reid Intl
4h 27m
IAD15:31Washington, D.C. Dulles Intl
$390
United Airlines
3 Mar
IAD17:45Washington, D.C. Dulles Intl
5h 37m
LAS20:22Las Vegas Harry Reid Intl
10 Mar
LAS13:30Las Vegas Harry Reid Intl
7h 58m
1 stop
IAD00:28Washington, D.C. Dulles Intl
$396

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

Our best Alaska Airlines deals on Washington, D.C. Dulles Intl Airport to Las Vegas flight tickets
Alaska Airlines
24 Feb
IAD07:05Washington, D.C. Dulles Intl
18h 23m
2 stops
LAS22:28Las Vegas Harry Reid Intl
3 Mar
LAS06:00Las Vegas Harry Reid Intl
8h 27m
1 stop
IAD17:27Washington, D.C. Dulles Intl
$400
Alaska Airlines
24 Feb
IAD07:05Washington, D.C. Dulles Intl
14h 13m
2 stops
LAS18:18Las Vegas Harry Reid Intl
28 Feb
LAS06:00Las Vegas Harry Reid Intl
8h 27m
1 stop
IAD17:27Washington, D.C. Dulles Intl
$407
Alaska Airlines
11 Mar
IAD07:05Washington, D.C. Dulles Intl
18h 23m
2 stops
LAS22:28Las Vegas Harry Reid Intl
25 Mar
LAS06:29Las Vegas Harry Reid Intl
7h 53m
1 stop
IAD17:22Washington, D.C. Dulles Intl
$429

momondo Fare Finder

 
Customise your flight search to find flights from Washington, D.C. Dulles Intl Airport to Las Vegas that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 78,305 searches. Data last updated 31 January 2026.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport 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

Tue 10/3

12:39-15:07

Nonstop5h 28m

Las Vegas Harry Reid Intl

Tue 24/3

14:00-21:25

Nonstop4h 25m

$382

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Tue 24/2

07:05-15:11

1 stop11h 06m

Las Vegas Harry Reid Intl

Sat 28/2

06:00-17:27

1 stop8h 27m

$389

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Wed 11/3

16:10-22:33

1 stop9h 23m

Las Vegas Harry Reid Intl

Wed 18/3

08:04-15:31

Nonstop4h 27m

$390

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Tue 3/3

17:45-20:22

Nonstop5h 37m

Las Vegas Harry Reid Intl

Tue 10/3

13:30-00:28

1 stop7h 58m

$396

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Tue 24/2

07:05-22:28

2 stops18h 23m

Las Vegas Harry Reid Intl

Tue 3/3

06:00-17:27

1 stop8h 27m

$400

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Tue 24/2

07:05-18:18

2 stops14h 13m

Las Vegas Harry Reid Intl

Sat 28/2

06:00-17:27

1 stop8h 27m

$407

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Tue 3/3

17:45-20:22

Nonstop5h 37m

Las Vegas Harry Reid Intl

Tue 10/3

08:04-15:31

Nonstop4h 27m

$409

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Wed 11/3

08:30-12:59

1 stop7h 29m

Las Vegas Harry Reid Intl

Wed 18/3

14:34-23:59

1 stop6h 25m

$410

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Tue 7/4

12:59-15:21

Nonstop5h 22m

Las Vegas Harry Reid Intl

Tue 21/4

13:11-20:54

Nonstop4h 43m

$419

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Wed 15/4

09:00-11:21

Nonstop5h 21m

Las Vegas Harry Reid Intl

Tue 21/4

13:11-20:54

Nonstop4h 43m

$422

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 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 $357, 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 $359.

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 $566 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 $459 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 January 2026, prices for Washington, D.C. Dulles Intl Airport to Las Vegas flights are approximately 8% 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

9h 06m

Direct flights

Every day

Airports in Las Vegas

1 airport
The fastest flight from Washington, D.C. Dulles Intl Airport to Las Vegas takes 9h 06m
Direct flights go from Washington, D.C. Dulles Intl Airport to Las Vegas every day.
There is 1 airport in Las Vegas. From Washington, D.C. Dulles Intl Airport there are direct flights to Las Vegas Harry Reid Intl (LAS).
Search flight deals

  • 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 9h 06m 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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