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Cheap flights from Washington, D.C. to Las Vegas from $186

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 19/5. 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. to Las Vegas

Cheap return flights

Enter your travel dates to find the best prices.
Alaska Airlines Logo
18:20 - 20:14
IAD
-
LAS
28h 54m
1 stop
Alaska Airlines Logo
06:00 - 17:27
LAS
-
IAD
8h 27m
1 stop
$419Alaska Airlines
Tue, 24 Feb - Tue, 3 Mar
Alaska Airlines Logo
07:05 - 20:14
IAD
-
LAS
16h 09m
2 stops
Alaska Airlines Logo
18:58 - 17:27
LAS
-
IAD
19h 29m
1 stop
$426Alaska Airlines
Wed, 4 Mar - Tue, 10 Mar
Alaska Airlines Logo
18:20 - 20:14
IAD
-
LAS
28h 54m
1 stop
Alaska Airlines Logo
06:00 - 17:27
LAS
-
IAD
8h 27m
1 stop
$433Alaska Airlines
Tue, 17 Feb - Tue, 24 Feb
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
$441Alaska Airlines
Tue, 24 Feb - Sat, 28 Feb
Alaska Airlines Logo
18:20 - 16:37
IAD
-
LAS
25h 17m
1 stop
Alaska Airlines Logo
06:00 - 17:27
LAS
-
IAD
8h 27m
1 stop
$448Alaska Airlines
Tue, 24 Feb - Sat, 28 Feb
Alaska Airlines Logo
18:20 - 13:25
IAD
-
LAS
22h 05m
2 stops
Alaska Airlines Logo
17:58 - 17:27
LAS
-
IAD
20h 29m
1 stop
$455Alaska Airlines
Mon, 23 Feb - Wed, 25 Feb
Alaska Airlines Logo
18:20 - 14:47
IAD
-
LAS
23h 27m
1 stop
Alaska Airlines Logo
06:00 - 17:27
LAS
-
IAD
8h 27m
1 stop
$464Alaska Airlines
Tue, 17 Feb - Tue, 24 Feb
Delta Logo
07:00 - 14:47
IAD
-
LAS
10h 47m
1 stop
Delta Logo
11:00 - 23:49
LAS
-
IAD
9h 49m
1 stop
$467Delta
Wed, 11 Mar - Wed, 25 Mar
Sun Country Air Logo
12:46 - 17:24
IAD
-
LAS
7h 38m
1 stop
Sun Country Air Logo
10:49 - 11:45
LAS
-
IAD
21h 56m
1 stop
$470Sun Country Air
Sat, 18 Jul - Fri, 24 Jul
Alaska Airlines Logo
07:05 - 22:28
IAD
-
LAS
18h 23m
2 stops
Alaska Airlines Logo
17:58 - 17:27
LAS
-
IAD
20h 29m
1 stop
$474Alaska Airlines
Tue, 24 Feb - Fri, 27 Feb

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
24 Feb
IAD18:20Washington, D.C. Dulles Intl
28h 54m
1 stop
LAS20:14Las Vegas Harry Reid Intl
3 Mar
LAS06:00Las Vegas Harry Reid Intl
8h 27m
1 stop
IAD17:27Washington, D.C. Dulles Intl
$419
Alaska Airlines
4 Mar
IAD07:05Washington, D.C. Dulles Intl
16h 09m
2 stops
LAS20:14Las Vegas Harry Reid Intl
10 Mar
LAS18:58Las Vegas Harry Reid Intl
19h 29m
1 stop
IAD17:27Washington, D.C. Dulles Intl
$426
Alaska Airlines
17 Feb
IAD18:20Washington, D.C. Dulles Intl
28h 54m
1 stop
LAS20:14Las Vegas Harry Reid Intl
24 Feb
LAS06:00Las Vegas Harry Reid Intl
8h 27m
1 stop
IAD17:27Washington, D.C. Dulles Intl
$433

Sun Country Air flights from Washington, D.C. to Las Vegas

Our best Sun Country Air deals on Washington, D.C. to Las Vegas flight tickets
Sun Country Air
18 July
IAD12:46Washington, D.C. Dulles Intl
7h 38m
1 stop
LAS17:24Las Vegas Harry Reid Intl
24 July
LAS10:49Las Vegas Harry Reid Intl
21h 56m
1 stop
IAD11:45Washington, D.C. Dulles Intl
$470
Sun Country Air
28 June
IAD16:16Washington, D.C. Dulles Intl
20h 26m
1 stop
LAS09:42Las Vegas Harry Reid Intl
3 July
LAS18:03Las Vegas Harry Reid Intl
14h 42m
1 stop
IAD11:45Washington, D.C. Dulles Intl
$498
Sun Country Air
1 July
IAD12:51Washington, D.C. Dulles Intl
7h 33m
1 stop
LAS17:24Las Vegas Harry Reid Intl
6 July
LAS17:03Las Vegas Harry Reid Intl
16h 12m
1 stop
IAD12:15Washington, D.C. Dulles Intl
$535

momondo Fare Finder

 
Customise your flight search to find flights from Washington, D.C. 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 27 January 2026.
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

Tue 24/2

18:20-20:14

1 stop28h 54m

Las Vegas Harry Reid Intl

Tue 3/3

06:00-17:27

1 stop8h 27m

$419

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Wed 4/3

07:05-20:14

2 stops16h 09m

Las Vegas Harry Reid Intl

Tue 10/3

18:58-17:27

1 stop19h 29m

$426

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Tue 17/2

18:20-20:14

1 stop28h 54m

Las Vegas Harry Reid Intl

Tue 24/2

06:00-17:27

1 stop8h 27m

$433

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

Sat 28/2

06:00-17:27

1 stop8h 27m

$441

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Tue 24/2

18:20-16:37

1 stop25h 17m

Las Vegas Harry Reid Intl

Sat 28/2

06:00-17:27

1 stop8h 27m

$448

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Mon 23/2

18:20-13:25

2 stops22h 05m

Las Vegas Harry Reid Intl

Wed 25/2

17:58-17:27

1 stop20h 29m

$455

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Tue 17/2

18:20-14:47

1 stop23h 27m

Las Vegas Harry Reid Intl

Tue 24/2

06:00-17:27

1 stop8h 27m

$464

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Wed 11/3

07:00-14:47

1 stop10h 47m

Las Vegas Harry Reid Intl

Wed 25/3

11:00-23:49

1 stop9h 49m

$467

Washington, D.C.Las Vegas

IAD - LAS

IADLAS

Washington, D.C. Dulles Intl

Sat 18/7

12:46-17:24

1 stop7h 38m

Las Vegas Harry Reid Intl

Fri 24/7

10:49-11:45

1 stop21h 56m

$470

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

Fri 27/2

17:58-17:27

1 stop20h 29m

$474

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. 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?

The cheapest month to fly to Las Vegas from Washington, D.C. is in August. Flight prices, which tend to average around $389, 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 $403.

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 $570 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 $464 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 January 2026, prices for Washington, D.C. to Las Vegas flights are approximately 5% 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

$241

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 $241
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 in Las Vegas. From Washington, D.C. there are direct flights to 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 24m 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?

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?

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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