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Cheap flights from Washington, D.C. Dulles Intl Airport to Las Vegas from $141

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 1/4. 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

These are some of the best return flight deals from Washington, D.C. Dulles Intl Airport to Las Vegas that have been recently found on momondo from popular airlines, departing in the coming months.
17:55 - 20:14IAD-LAS
5h 19mdirect
13:15 - 20:51LAS-IAD
4h 36mdirect
$280United Airlines
Find Deal
Wed, 2 Apr - Tue, 15 Apr
08:35 - 10:52IAD-LAS
5h 17mdirect
18:20 - 05:15LAS-IAD
7h 55m1 stop
$290United Airlines
Find Deal
Wed, 2 Apr - Tue, 15 Apr
17:55 - 20:29IAD-LAS
5h 34mdirect
08:40 - 16:13LAS-IAD
4h 33mdirect
$299United Airlines
Find Deal
Wed, 26 Mar - Wed, 2 Apr
08:45 - 11:16IAD-LAS
5h 31mdirect
19:11 - 05:31LAS-IAD
7h 20m1 stop
$309United Airlines
Find Deal
Wed, 26 Mar - Wed, 2 Apr
17:30 - 22:51IAD-LAS
8h 21m1 stop
19:16 - 16:58LAS-IAD
18h 42m1 stop
$329Alaska Airlines
Find Deal
Wed, 26 Mar - Tue, 1 Apr
07:31 - 15:17IAD-LAS
10h 46m1 stop
07:06 - 16:58LAS-IAD
6h 52m1 stop
$342Alaska Airlines
Find Deal
Thu, 3 Apr - Wed, 9 Apr
19:50 - 23:55IAD-LAS
7h 05m1 stop
06:15 - 17:55LAS-IAD
8h 40m1 stop
$369Southwest
Find Deal
Mon, 7 Apr - Wed, 9 Apr
16:00 - 22:25IAD-LAS
9h 25m1 stop
06:15 - 17:55LAS-IAD
8h 40m1 stop
$372Southwest
Find Deal
Sat, 5 Apr - Wed, 9 Apr
17:19 - 22:20IAD-LAS
8h 01m1 stop
00:40 - 11:09LAS-IAD
7h 29m1 stop
$407Delta
Find Deal
Mon, 14 Apr - Mon, 21 Apr
13:35 - 17:32IAD-LAS
6h 57m1 stop
14:15 - 00:31LAS-IAD
7h 16m1 stop
$419Delta
Find Deal
Mon, 17 Mar - Wed, 19 Mar

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
7 Apr
IAD19:50Washington, D.C. Dulles Intl
7h 05m
1 stop
LAS23:55Las Vegas Harry Reid Intl
9 Apr
LAS06:15Las Vegas Harry Reid Intl
8h 40m
1 stop
IAD17:55Washington, D.C. Dulles Intl
Southwest
5 Apr
IAD16:00Washington, D.C. Dulles Intl
9h 25m
1 stop
LAS22:25Las Vegas Harry Reid Intl
9 Apr
LAS06:15Las Vegas Harry Reid Intl
8h 40m
1 stop
IAD17:55Washington, D.C. Dulles Intl
Southwest
21 Apr
IAD14:10Washington, D.C. Dulles Intl
9h 00m
1 stop
LAS20:10Las Vegas Harry Reid Intl
25 Apr
LAS05:50Las Vegas Harry Reid Intl
9h 05m
1 stop
IAD17:55Washington, D.C. Dulles Intl

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
2 Apr
IAD17:55Washington, D.C. Dulles Intl
5h 19m
LAS20:14Las Vegas Harry Reid Intl
15 Apr
LAS13:15Las Vegas Harry Reid Intl
4h 36m
IAD20:51Washington, D.C. Dulles Intl
United Airlines
2 Apr
IAD08:35Washington, D.C. Dulles Intl
5h 17m
LAS10:52Las Vegas Harry Reid Intl
15 Apr
LAS18:20Las Vegas Harry Reid Intl
7h 55m
1 stop
IAD05:15Washington, D.C. Dulles Intl
United Airlines
26 Mar
IAD17:55Washington, D.C. Dulles Intl
5h 34m
LAS20:29Las Vegas Harry Reid Intl
2 Apr
LAS08:40Las Vegas Harry Reid Intl
4h 33m
IAD16:13Washington, D.C. Dulles Intl

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 January. Flight prices, which tend to average around $682, 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 January, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $707.

What is the cheapest day to depart on your flight to Las Vegas?

On average, the least expensive day to fly to Las Vegas from Washington, D.C. Dulles Intl Airport is on a Monday. momondo users have found tickets for Monday departures for as low as $0. However, this price may fluctuate depending on the airline, the season, and holidays. The most expensive day to fly to Las Vegas is Sunday, with ticket prices averaging around $916.

What is the cheapest time of day to depart on your flight to Las Vegas?

In the morning is the cheapest time of day to fly from Washington, D.C. Dulles Intl Airport to Las Vegas when you can find flight prices for as low as $0. Flying to Las Vegas in the morning is an ideal time because this is during off-peak travel hours. Flights in the afternoon are often more expensive, with an average ticket price of $737.

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 9 weeks ahead of your departure date. In general, you can expect to find flights to Las Vegas for around $770 when searching 9 weeks out.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 $688 on momondo.

What cabin class options are available on Washington, D.C. Dulles Intl to Las Vegas Harry Reid Intl flights?

There are 1 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 2025, prices for Washington, D.C. Dulles Intl Airport to Las Vegas flights are approximately 101% 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

Best price found

$141

Fastest flight time

5h 04m

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 $141. The best return flight deal from Washington, D.C. Dulles Intl Airport to Las Vegas found on momondo in the last 72 hours is $280.
The fastest flight from Washington, D.C. Dulles Intl Airport to Las Vegas takes 5h 04m
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)

  • 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 04m 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

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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