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Cheap flights from Washington, D.C. Dulles Intl Airport to Las Vegas from $210

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 21/2. 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
07:30 - 15:00
IAD
-
LAS
10h 30m1 stop
Delta Logo
11:00 - 23:10
LAS
-
IAD
9h 10m1 stop
$424Delta
Sun, 25 Jan - Tue, 3 Feb
Alaska Airlines Logo
17:26 - 22:31
IAD
-
LAS
8h 05m1 stop
Alaska Airlines Logo
06:00 - 17:04
LAS
-
IAD
8h 04m1 stop
$427Alaska Airlines
Tue, 3 Feb - Sat, 7 Feb
Delta Logo
07:30 - 20:26
IAD
-
LAS
15h 56m1 stop
Delta Logo
06:05 - 23:10
LAS
-
IAD
14h 05m1 stop
$439Delta
Sat, 17 Jan - Fri, 30 Jan
Southwest Logo
16:30 - 22:25
IAD
-
LAS
8h 55m1 stop
Southwest Logo
05:50 - 14:55
LAS
-
IAD
6h 05m1 stop
$445Southwest
Wed, 4 Feb - Sat, 7 Feb
Delta Logo
06:00 - 15:00
IAD
-
LAS
12h 00m2 stops
Delta Logo
11:00 - 23:10
LAS
-
IAD
9h 10m1 stop
$446Delta
Sat, 24 Jan - Wed, 28 Jan
Southwest Logo
09:05 - 16:35
IAD
-
LAS
10h 30m2 stops
Southwest Logo
06:25 - 15:45
LAS
-
IAD
6h 20m1 stop
$452Southwest
Wed, 25 Feb - Sat, 28 Feb
Delta Logo
07:30 - 17:41
IAD
-
LAS
13h 11m1 stop
Delta Logo
06:05 - 23:10
LAS
-
IAD
14h 05m1 stop
$454Delta
Wed, 21 Jan - Sat, 24 Jan
Delta Logo
07:30 - 15:00
IAD
-
LAS
10h 30m1 stop
Delta Logo
07:03 - 19:09
LAS
-
IAD
9h 06m1 stop
$455Delta
Wed, 11 Feb - Sun, 15 Feb
United Airlines Logo
19:36 - 21:57
IAD
-
LAS
5h 21mdirect
United Airlines Logo
13:55 - 21:25
LAS
-
IAD
4h 30mdirect
$457United Airlines
Thu, 5 Feb - Sat, 7 Feb
Alaska Airlines Logo
17:26 - 23:28
IAD
-
LAS
9h 02m1 stop
Alaska Airlines Logo
10:07 - 17:04
LAS
-
IAD
27h 57m2 stops
$461Alaska Airlines
Sun, 1 Feb - Tue, 3 Feb

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
25 Jan
IAD07:30Washington, D.C. Dulles Intl
10h 30m
1 stop
LAS15:00Las Vegas Harry Reid Intl
3 Feb
LAS11:00Las Vegas Harry Reid Intl
9h 10m
1 stop
IAD23:10Washington, D.C. Dulles Intl
$424
Find similar
Delta
17 Jan
IAD07:30Washington, D.C. Dulles Intl
15h 56m
1 stop
LAS20:26Las Vegas Harry Reid Intl
30 Jan
LAS06:05Las Vegas Harry Reid Intl
14h 05m
1 stop
IAD23:10Washington, D.C. Dulles Intl
$439
Find similar
Delta
24 Jan
IAD06:00Washington, D.C. Dulles Intl
12h 00m
2 stops
LAS15:00Las Vegas Harry Reid Intl
28 Jan
LAS11:00Las Vegas Harry Reid Intl
9h 10m
1 stop
IAD23:10Washington, D.C. Dulles Intl
$446
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 Feb
IAD16:30Washington, D.C. Dulles Intl
8h 55m
1 stop
LAS22:25Las Vegas Harry Reid Intl
7 Feb
LAS05:50Las Vegas Harry Reid Intl
6h 05m
1 stop
IAD14:55Washington, D.C. Dulles Intl
$445
Find similar
Southwest
25 Feb
IAD09:05Washington, D.C. Dulles Intl
10h 30m
2 stops
LAS16:35Las Vegas Harry Reid Intl
28 Feb
LAS06:25Las Vegas Harry Reid Intl
6h 20m
1 stop
IAD15:45Washington, D.C. Dulles Intl
$452
Find similar
Southwest
17 Jan
IAD07:00Washington, D.C. Dulles Intl
7h 10m
1 stop
LAS11:10Las Vegas Harry Reid Intl
24 Jan
LAS09:15Las Vegas Harry Reid Intl
9h 55m
2 stops
IAD22:10Washington, D.C. Dulles Intl
$481
Find similar

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 28 December 2025.
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

Sun 25/1

07:30-15:00

1 stop10h 30m

Las Vegas Harry Reid Intl

Tue 3/2

11:00-23:10

1 stop9h 10m

$424

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Tue 3/2

17:26-22:31

1 stop8h 05m

Las Vegas Harry Reid Intl

Sat 7/2

06:00-17:04

1 stop8h 04m

$427

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sat 17/1

07:30-20:26

1 stop15h 56m

Las Vegas Harry Reid Intl

Fri 30/1

06:05-23:10

1 stop14h 05m

$439

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Wed 4/2

16:30-22:25

1 stop8h 55m

Las Vegas Harry Reid Intl

Sat 7/2

05:50-14:55

1 stop6h 05m

$445

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sat 24/1

06:00-15:00

2 stops12h 00m

Las Vegas Harry Reid Intl

Wed 28/1

11:00-23:10

1 stop9h 10m

$446

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Wed 25/2

09:05-16:35

2 stops10h 30m

Las Vegas Harry Reid Intl

Sat 28/2

06:25-15:45

1 stop6h 20m

$452

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Wed 21/1

07:30-17:41

1 stop13h 11m

Las Vegas Harry Reid Intl

Sat 24/1

06:05-23:10

1 stop14h 05m

$454

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Wed 11/2

07:30-15:00

1 stop10h 30m

Las Vegas Harry Reid Intl

Sun 15/2

07:03-19:09

1 stop9h 06m

$455

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Thu 5/2

19:36-21:57

Nonstop5h 21m

Las Vegas Harry Reid Intl

Sat 7/2

13:55-21:25

Nonstop4h 30m

$457

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sun 1/2

17:26-23:28

1 stop9h 02m

Las Vegas Harry Reid Intl

Tue 3/2

10:07-17:04

2 stops27h 57m

$461

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 $368, 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 $372.

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 $589 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 $472 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 46% 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 21m

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 21m
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 5h 21m 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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