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Cheap flights from Washington, D.C. Dulles Intl Airport to Las Vegas from $157

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 7/3. 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.
Delta Logo
17:25 - 23:33
IAD
-
LAS
9h 08m
1 stop
Delta Logo
12:05 - 23:41
LAS
-
IAD
8h 36m
1 stop
$388Delta
Sat, 7 Mar - Mon, 16 Mar
United Airlines Logo
16:10 - 22:33
IAD
-
LAS
9h 23m
1 stop
United Airlines Logo
08:04 - 15:31
LAS
-
IAD
4h 27mdirect
$389United Airlines
Wed, 11 Mar - Wed, 18 Mar
United Airlines Logo
19:45 - 22:18
IAD
-
LAS
5h 33mdirect
United Airlines Logo
13:30 - 00:28
LAS
-
IAD
7h 58m
1 stop
$395United Airlines
Thu, 5 Mar - Tue, 10 Mar
United Airlines Logo
12:38 - 17:23
IAD
-
LAS
7h 45m
1 stop
United Airlines Logo
14:17 - 00:15
LAS
-
IAD
6h 58m
1 stop
$403United Airlines
Sat, 4 Apr - Mon, 13 Apr
United Airlines Logo
06:00 - 11:12
IAD
-
LAS
8h 12m
1 stop
United Airlines Logo
23:40 - 07:17
LAS
-
IAD
4h 37mdirect
$406United Airlines
Thu, 7 May - Sat, 9 May
Delta Logo
06:00 - 10:36
IAD
-
LAS
7h 36m
1 stop
Delta Logo
15:00 - 00:27
LAS
-
IAD
6h 27m
1 stop
$409Delta
Tue, 10 Mar - Tue, 10 Mar
Alaska Airlines Logo
07:05 - 22:28
IAD
-
LAS
18h 23m
2 stops
Alaska Airlines Logo
06:33 - 17:27
LAS
-
IAD
7h 54m
1 stop
$413Alaska Airlines
Tue, 10 Mar - Thu, 12 Mar
United Airlines Logo
19:50 - 22:13
IAD
-
LAS
5h 23mdirect
United Airlines Logo
23:45 - 07:21
LAS
-
IAD
4h 36mdirect
$416United Airlines
Sat, 11 Apr - Thu, 16 Apr
Alaska Airlines Logo
07:05 - 18:18
IAD
-
LAS
14h 13m
2 stops
Alaska Airlines Logo
18:58 - 17:27
LAS
-
IAD
19h 29m
1 stop
$420Alaska Airlines
Wed, 4 Mar - Tue, 10 Mar
Alaska Airlines Logo
18:20 - 14:36
IAD
-
LAS
23h 16m
1 stop
Alaska Airlines Logo
18:58 - 17:27
LAS
-
IAD
19h 29m
1 stop
$423Alaska Airlines
Sat, 28 Feb - Mon, 9 Mar

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
7 Mar
IAD17:25Washington, D.C. Dulles Intl
9h 08m
1 stop
LAS23:33Las Vegas Harry Reid Intl
16 Mar
LAS12:05Las Vegas Harry Reid Intl
8h 36m
1 stop
IAD23:41Washington, D.C. Dulles Intl
$388
Delta
10 Mar
IAD06:00Washington, D.C. Dulles Intl
7h 36m
1 stop
LAS10:36Las Vegas Harry Reid Intl
10 Mar
LAS15:00Las Vegas Harry Reid Intl
6h 27m
1 stop
IAD00:27Washington, D.C. Dulles Intl
$409
Delta
24 Mar
IAD13:19Washington, D.C. Dulles Intl
11h 44m
1 stop
LAS22:03Las Vegas Harry Reid Intl
30 Mar
LAS23:35Las Vegas Harry Reid Intl
10h 04m
1 stop
IAD12:39Washington, D.C. Dulles Intl
$457

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
10 Mar
IAD07:05Washington, D.C. Dulles Intl
18h 23m
2 stops
LAS22:28Las Vegas Harry Reid Intl
12 Mar
LAS06:33Las Vegas Harry Reid Intl
7h 54m
1 stop
IAD17:27Washington, D.C. Dulles Intl
$413
Alaska Airlines
4 Mar
IAD07:05Washington, D.C. Dulles Intl
14h 13m
2 stops
LAS18:18Las Vegas Harry Reid Intl
10 Mar
LAS18:58Las Vegas Harry Reid Intl
19h 29m
1 stop
IAD17:27Washington, D.C. Dulles Intl
$420
Alaska Airlines
28 Feb
IAD18:20Washington, D.C. Dulles Intl
23h 16m
1 stop
LAS14:36Las Vegas Harry Reid Intl
9 Mar
LAS17:58Las Vegas Harry Reid Intl
20h 29m
1 stop
IAD17:27Washington, D.C. Dulles Intl
$423

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 9 February 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

Sat 7/3

17:25-23:33

1 stop9h 08m

Las Vegas Harry Reid Intl

Mon 16/3

12:05-23:41

1 stop8h 36m

$388

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

$389

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Thu 5/3

19:45-22:18

Nonstop5h 33m

Las Vegas Harry Reid Intl

Tue 10/3

13:30-00:28

1 stop7h 58m

$395

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sat 4/4

12:38-17:23

1 stop7h 45m

Las Vegas Harry Reid Intl

Mon 13/4

14:17-00:15

1 stop6h 58m

$403

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Thu 7/5

06:00-11:12

1 stop8h 12m

Las Vegas Harry Reid Intl

Sat 9/5

23:40-07:17

Nonstop4h 37m

$406

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Tue 10/3

06:00-10:36

1 stop7h 36m

Las Vegas Harry Reid Intl

Tue 10/3

15:00-00:27

1 stop6h 27m

$409

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Tue 10/3

07:05-22:28

2 stops18h 23m

Las Vegas Harry Reid Intl

Thu 12/3

06:33-17:27

1 stop7h 54m

$413

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sat 11/4

19:50-22:13

Nonstop5h 23m

Las Vegas Harry Reid Intl

Thu 16/4

23:45-07:21

Nonstop4h 36m

$416

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Wed 4/3

07:05-18:18

2 stops14h 13m

Las Vegas Harry Reid Intl

Tue 10/3

18:58-17:27

1 stop19h 29m

$420

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sat 28/2

18:20-14:36

1 stop23h 16m

Las Vegas Harry Reid Intl

Mon 9/3

18:58-17:27

1 stop19h 29m

$423

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 $352, 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 $358.

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 $571 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 $440 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 February 2026, prices for Washington, D.C. Dulles Intl Airport to Las Vegas flights are approximately 40% 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

18h 31m

Direct flights

Every day

Airports in Las Vegas

1 airport
The fastest flight from Washington, D.C. Dulles Intl Airport to Las Vegas takes 18h 31m
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 18h 31m 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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