Cheap Flights from Washington Dulles to Las Vegas

Compare Washington Dulles to Las Vegas flight deals

Find the cheapest month or even day of the year to fly to Las Vegas

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Flight deals from Washington Dulles to Las Vegas

Looking for a cheap last-minute deal or the best return flight from Washington Dulles Airport to Las Vegas? If you want to travel next month, return fares start from R 3,722. Find the lowest prices on one-way and return tickets right here.

Las Vegas.R 1,440 per passenger.Departing Fri, 3 Jul.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Washington Dulles on Fri, 3 Jul, arriving in Harry Reid International.Price includes taxes and charges.From R 1,440, select.

Las Vegas.R 1,454 per passenger.Departing Mon, 24 Aug.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Washington Dulles on Mon, 24 Aug, arriving in Harry Reid International.Price includes taxes and charges.From R 1,454, select.

Las Vegas.R 1,586 per passenger.Departing Wed, 7 Oct.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Washington Dulles on Wed, 7 Oct, arriving in Harry Reid International.Price includes taxes and charges.From R 1,586, select.

Las Vegas.R 1,631 per passenger.Departing Tue, 8 Sep.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Washington Dulles on Tue, 8 Sep, arriving in Harry Reid International.Price includes taxes and charges.From R 1,631, select.

Las Vegas.R 1,819 per passenger.Departing Tue, 2 Jun.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Washington Dulles on Tue, 2 Jun, arriving in Harry Reid International.Price includes taxes and charges.From R 1,819, select.

Las Vegas.R 1,925 per passenger.Departing Tue, 8 Sep.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Washington Dulles on Tue, 8 Sep, arriving in Harry Reid International.Price includes taxes and charges.From R 1,925, select.

Las Vegas.R 1,970 per passenger.Departing Tue, 9 Jun.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Washington Dulles on Tue, 9 Jun, arriving in Harry Reid International.Price includes taxes and charges.From R 1,970, select.

Las Vegas.R 1,986 per passenger.Departing Wed, 27 May.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Washington Dulles on Wed, 27 May, arriving in Harry Reid International.Price includes taxes and charges.From R 1,986, select.

Las Vegas.R 2,040 per passenger.Departing Tue, 18 Aug.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Washington Dulles on Tue, 18 Aug, arriving in Harry Reid International.Price includes taxes and charges.From R 2,040, select.

Las Vegas.R 2,041 per passenger.Departing Tue, 7 Jul.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Washington Dulles on Tue, 7 Jul, arriving in Harry Reid International.Price includes taxes and charges.From R 2,041, select.

Las Vegas.R 2,156 per passenger.Departing Sat, 14 Nov.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Washington Dulles on Sat, 14 Nov, arriving in Harry Reid International.Price includes taxes and charges.From R 2,156, select.

Las Vegas.R 2,881 per passenger.Departing Sun, 24 May.One-way flight with Frontier Airlines.Outbound direct flight with Frontier Airlines departs from Washington Dulles on Sun, 24 May, arriving in Harry Reid International.Price includes taxes and charges.From R 2,881, select.

Las Vegas.R 3,112 per passenger.Departing Wed, 7 Oct.One-way flight with United.Outbound direct flight with United departs from Washington Dulles on Wed, 7 Oct, arriving in Harry Reid International.Price includes taxes and charges.From R 3,112, select.

Las Vegas.R 3,446 per passenger.Departing Sat, 14 Nov.One-way flight with United.Outbound direct flight with United departs from Washington Dulles on Sat, 14 Nov, arriving in Harry Reid International.Price includes taxes and charges.From R 3,446, select.

Las Vegas.R 3,867 per passenger.Departing Wed, 13 Jan.One-way flight with Breeze Airways.Outbound indirect flight with Breeze Airways, departs from Washington Dulles on Wed, 13 Jan, arriving in Harry Reid International.Price includes taxes and charges.From R 3,867, select.

Las Vegas.R 3,957 per passenger.Departing Wed, 16 Dec.One-way flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Washington Dulles on Wed, 16 Dec, arriving in Harry Reid International.Price includes taxes and charges.From R 3,957, select.

Find the cheapest month to fly from Washington Dulles to Las Vegas

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington Dulles to Las Vegas flights are currently cheapest in July.

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Direct flights from Washington Dulles to Las Vegas

Alternative Washington Dulles to Las Vegas routes

Looking for the cheapest, fastest or easiest route from Washington Dulles to Las Vegas? You could fly into the following airports instead.

Washington D.C. to Las Vegas: Flight information

The things to know before you go.

Cheapest flight found	R 1,440
Cheapest month to fly	July
Average flight time	5 hrs, 10 mins
Most popular airline	United
Average flights per week	55

Finding cheap flights from Washington Dulles to Las Vegas: Frequently asked questions

How many airports are there in Las Vegas?

There are 4 airports in Las Vegas: North Las Vegas, Harry Reid International, Henderson Executive, and Boulder City Municipal.

How much are return flights from Washington Dulles to Las Vegas?

The best price we found for a return flight from Washington Dulles to Las Vegas is R 2,931. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Washington Dulles to Las Vegas?

5 hours and 10 minutes is the average flight time from Washington Dulles to Las Vegas.

Which airlines fly direct from Washington Dulles to Las Vegas?

United, ITA Airways and Ethiopian Airlines fly direct from Washington Dulles to Las Vegas.

How many flights are there a week from Washington Dulles to Las Vegas?

As of May 2026, there are 55 flights per week flying from Washington Dulles to Las Vegas.

When is the cheapest time to fly from Washington Dulles to Las Vegas?

The cheapest month to fly from Washington Dulles to Las Vegas is usually July.

Which is the cheapest airport to fly into in Las Vegas?

If you're flying from Washington Dulles Airport, the cheapest airport near Las Vegas is Harry Reid International – which is 4.3 km away from the centre of Las Vegas. We've found flights into this airport from R 2,931.

Which upcoming date is cheapest to fly from Washington Dulles Airport to Las Vegas on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Washington Dulles Airport to Las Vegas on Saturday, 11 July 2026.

Can I get a direct flight from Washington Dulles Airport to Las Vegas?

Yes – the average flight time is 5 hours and 10 minutes.

How can I get the best flight deal from Washington Dulles Airport to Las Vegas?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Las Vegas but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Las Vegas?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Las Vegas is around 40 days in advance, so don’t leave your flight to the last minute.

What’s the weather like in Las Vegas?

In May, the average temperature is usually around 21°C. July is typically the warmest month in Las Vegas, when it usually averages around 37°C. You can expect the least rain in June. The coldest month is December, with temperatures averaging -0°C. The rainiest month is February.

Which is the cheapest airline to fly from Washington Dulles Airport to Las Vegas with?

Currently, Frontier Airlines offers the cheapest flight tickets to Las Vegas.

Flying from Washington Dulles International Airport (IAD) to Las Vegas: what you need to know

Around 4 hours 25 minutes is how long you can expect to be in the air on a direct flight from Washington Dulles International Airport to Las Vegas.
Washington Dulles International Airport is located in Washington DC. Based in the UTC-8 timezone, Las Vegas is three hours behind Washington DC.
The busiest route is from Washington Dulles International Airport (IAD) to Las Vegas Harry Reid International Airport (LAS). There are 21 services every week between these two airports. If you want to get on your way as soon as possible, the earliest flight from IAD to LAS is the 06:25 United Airlines service. If you prefer travelling later, the last departure is at 22:10 with United Airlines.
For a relaxed start to your IAD to Las Vegas flight, leave plenty of time for things like check-in and baggage drop. Arriving two hours ahead of international departures and an hour before domestic flights is the general rule.
During popular months like June, it's a good idea to get to the airport even earlier. Arrive two hours before a domestic departure and four hours ahead of an international flight when you travel during a peak period in general.
You can book a direct Washington Dulles International Airport to Las Vegas ticket. Start your journey at IAD and land at Las Vegas Harry Reid International Airport (LAS).
United Airlines is a well-known carrier that operates direct flights from Washington Dulles International Airport to Las Vegas.
Travelling from central Washington DC to IAD takes about 1 hour 10 minutes by public transport. If you drive, ride-share or get a taxi, you'll cover the 40 kilometres in 45 minutes or so, depending on traffic.
Have an early flight from Washington Dulles International Airport to Las Vegas? Avoid the last-minute rush to the terminal (and catch some extra z's) by choosing one of these hotels close to IAD:
When it comes to the on-time performance of Washington Dulles International Airport, data shows 77% of flights complete their journey on time.
You'll find IAD at 1 Saarinen Circle.

How to find the cheapest flights from Washington Dulles International Airport (IAD) to Las Vegas

R 1,440 is currently the best price for a one-way Washington Dulles International Airport to Las Vegas flight. Return plane tickets start from R 2,906. These prices can change depending on demand.
Don't leave things to the last moment. You're more likely to pick up cheap flights from IAD to Las Vegas if you book early. Airlines often offer some excellent early bird deals.
If you're flexible with your travel plans, check out the 'Whole month' tool. It'll find the lowest price across every month when searching for a Washington Dulles International Airport to Las Vegas ticket.
Picking up a cheap flight from IAD to Las Vegas is easy with Price Alerts. Simply create one of these automatic notifications and we'll let you know when a lower fare pops up.
Tailor your flights with filters. Pick your arrival and departure times, airlines and total journey duration. You can also sort results by 'Fastest,' 'Cheapest' or 'Best' flights from Washington Dulles International Airport to Las Vegas.

Airports in Las Vegas

Las Vegas Harry Reid International Airport (LAS)

Las Vegas Harry Reid International Airport (LAS) to the centre of Las Vegas takes about 10 minutes to reach by car. The centre is roughly 8 kilometres away.
It'll take around 25 minutes to get there using public transport.
The last thing you want is a long journey to your hotel if you're arriving on a late flight from Washington Dulles International Airport to Las Vegas. Reserve one of these accommodation options near LAS instead:
To get the best deal, reserve your vehicle from Las Vegas Harry Reid International Airport about one week ahead of your flight from IAD to Las Vegas.
LAS is located at 5757 Wayne Newton Boulevard.

Best time to go to Las Vegas

It's time to plan your travel dates for your flight from Washington Dulles International Airport to Las Vegas. March is the busiest month to visit Las Vegas. If you want a more low-key vibe, go in December.
Before locking in your Washington Dulles International Airport to Las Vegas plane ticket, think about the weather you're most comfortable in. July is the warmest month in Las Vegas, with temperatures ranging from 23ºC (73ºF) to 43ºC (109ºF).
If you'd rather travel in cooler conditions, look for a cheap ticket from IAD to Las Vegas in January when temperatures average between 0ºC (32ºF) and 16ºC (61ºF).

More about Las Vegas

When it comes to searching for somewhere to lay your head, you'll find the most popular stays in Las Vegas right here. Browse these hotels as soon as you've locked in your flight from Washington Dulles International Airport to Las Vegas:
Every great holiday has to include some sightseeing. Las Vegas Strip, Ciudad del Pecado o Las Vegas and Fountains of Bellagio are essential stops on your Las Vegas itinerary.

Explore more of the United States

Los Angeles is just one of the many places in the United States waiting to be discovered after you've experienced Las Vegas. Around 370 kilometres away to the southwest, well-known attractions include Hollywood Sign, Universal Studios Hollywood and Hollywood Bowl.
Phoenix is another well-known destination in the United States and is around 418 kilometres southeast of Las Vegas. No journey is complete without a visit to Camelback Mountain, Yayoi Kusama Fireflies Infinity Mirror Room and Heard Museum.