Question 1

What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Las Vegas round-trip?

Accepted Answer

According to our current data, United Airlines ($234), Alaska Airlines ($306), and Frontier ($344) offers the cheapest pricing from Washington, D.C. Dulles Intl Airport to Las Vegas. United Airlines is priced at 64% lower than the current average price of a flight leaving 3 months from now. Find deals

Question 2

What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Las Vegas one-way?

Accepted Answer

For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $122. Users have also found prices from $152 and $180 on Alaska Airlines and Hawaiian Airlines, respectively. Find deals

Question 3

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Las Vegas?

Accepted Answer

Booking 75 days in advance of your planned departure date is, on average, the best time to get cheap flights from Washington, D.C. Dulles Intl Airport to Las Vegas. The general trend is that the closer you book to the departure date, the more expensive your flight will be. Find deals

Question 4

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Las Vegas?

Accepted Answer

Currently, March is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Las Vegas (average of $978). Flying from Washington, D.C. Dulles Intl Airport to Las Vegas in December is currently the most expensive (average of $1,549). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options. Find deals

Question 5

What is the cheapest day to fly from Washington, D.C. Dulles Intl Airport to Las Vegas?

Accepted Answer

Travellers seeking maximum savings on their Washington, D.C. Dulles Intl Airport to Las Vegas flight should consider departing on Saturday afternoons when fares are most often at their lowest. Saturday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Question 6

Weekly flight availability from Washington, D.C. Dulles Intl Airport to Las Vegas

Accepted Answer

The most flights from IAD to LAS are scheduled on a Wednesday (7 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (4 on average).

Question 7

E

Accepted Answer

In terms of precipitation, rainfall in Las Vegas ranges from 3.0 - 20.0 inches per month. February is typically the wettest month, when rainfall can reach 20.0 mm. May is typically the driest time to visit Las Vegas when rainfall is around 3.0 mm.

Question 8

E

Accepted Answer

If weather is an important factor for your trip to Las Vegas, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 34.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 9.0 C).

Question 9

What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to Las Vegas?

Accepted Answer

No one likes to see their flight delayed. When booking a flight from Washington, D.C. Dulles Intl Airport to Las Vegas consider choosing Frontier(75%), Ethiopian Air(72%) or Brussels Airlines(62%), as they are the most reliable in getting you off to your destination on time.

Question 10

How far in advance should I book a flight from Washington, D.C. Dulles Intl Airport to Las Vegas?

Accepted Answer

Travellers have found it’s best to book a flight 29 days in advance to save up to 50% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 29 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Washington, D.C. Dulles Intl Airport to Las Vegas 1-2 weeks in advance for as low as $513, or $712 for flights within the next 24 hours.

Question 11

What is the cheapest month to fly from Washington, D.C. Dulles Intl Airport to Las Vegas?

Accepted Answer

Our data shows that September tends to be the cheapest month to fly to Las Vegas from Washington, D.C. Dulles Intl Airport. Users have commonly found prices around $576 for the month, but tickets can be as low as $190. Due to multiple factors, prepare for potentially higher prices in December.

Question 12

What is the cheapest time of day to fly from IAD to LAS?

Accepted Answer

When flying from Washington, D.C. Dulles Intl Airport to Las Vegas, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Question 13

What airport do you fly into for flights to Las Vegas from Washington, D.C. Dulles Intl?

Accepted Answer

For a flight from Washington, D.C. Dulles Intl to Las Vegas, you will be flying into Harry Reid Intl. Las Vegas Harry Reid Intl (LAS) is just 10.0 km from the centre vof the city. Harry Reid Intl is the only Las Vegas airport and it handles 5 inbound flights from Washington, D.C. Dulles Intl per day. 0 airlines have flights to Las Vegas Harry Reid Intl from Washington, D.C. Dulles Intl on a regular basis.

Question 14

Can I find deals for flights from Dulles Intl to Las Vegas that include hotel bookings?

Accepted Answer

Yes. In addition to deals on Dulles Intl to Las Vegas flights, Cheapflights offers holiday packages that include both flights and hotel.

Question 15

How can I find direct flights from Dulles Intl to Las Vegas?

Accepted Answer

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dulles Intl to Las Vegas.

Question 16

Can I find deals for business class flights from Dulles Intl to Las Vegas?

Accepted Answer

Yes. Cheapflights offers flight deals from Dulles Intl to Las Vegas by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Question 17

How does Cheapflights help users find flights from Dulles Intl to Las Vegas?

Accepted Answer

Cheapflights helps you search for flights from Dulles Intl to Las Vegas via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Question 18

Why should you use Cheapflights to find cheap flight tickets from Dulles Intl to Las Vegas?

Accepted Answer

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Dulles Intl to Las Vegas for you. Better yet — we are completely free to use.

Question 19

Can Cheapflights find flights from Dulles Intl to Las Vegas with no change fees?

Accepted Answer

Yes, we can. To see specific flights from Dulles Intl to Las Vegas with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Question 20

Can Cheapflights notify me if prices for flights from Dulles Intl to Las Vegas become cheaper?

Accepted Answer

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

Round-trip from	$234
One-way from	$122
Popular in	December
Cheapest in	June
Average price	$542

Cheap flights from Washington, D.C. Dulles Intl Airport to Las Vegas from $122

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/8. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Dulles Intl to Las Vegas

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Dulles Intl to Las Vegas

Cheapest flights from Dulles Intl to Las VegasExplore the most affordable flight options available from Dulles Intl to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 July 2025.

Explore the most affordable flight options available from Dulles Intl to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 July 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Las Vegas that are best for you.

Best time to book a flight from Dulles Intl to Las Vegas

Have a flexible travel schedule? Discover the best time to fly to Las Vegas from Dulles Intl with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Dulles Intl Airport to Las Vegas

How far ahead should I book a flight from Washington, D.C. Dulles Intl Airport to Las Vegas?

Use this chart to determine the optimal time to book a return flight from Dulles Intl to Las Vegas. Price data was last updated on 27 June 2025.

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Las Vegas?

What is the cheapest time of day to fly from IAD to LAS?

Find hourly flight availability from Dulles Intl to Las Vegas. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 4 July 2025.

Weekly flight availability from Washington, D.C. Dulles Intl Airport to Las Vegas

Explore weekly flight availability from Dulles Intl to Las Vegas. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 4 July 2025.

Reviews of airlines servicing Las Vegas

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Las Vegas. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Las Vegas from Washington, D.C. Dulles Intl?

What are the cheapest airlines flying from Washington, D.C. Dulles Intl Airport to Las Vegas round-trip?

What are the cheapest airlines to fly from Washington, D.C. Dulles Intl Airport to Las Vegas one-way?

What are the most reliable airlines from Washington, D.C. Dulles Intl Airport to Las Vegas?

Can I find deals for flights from Dulles Intl to Las Vegas that include hotel bookings?

How can I find direct flights from Dulles Intl to Las Vegas?

Can I find deals for business class flights from Dulles Intl to Las Vegas?

What is the cheapest month to book a flight from Washington, D.C. Dulles Intl Airport to Las Vegas?

Travelling to a place near Washington, D.C. Dulles Intl Airport?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Complete your trip

Complete your trip to Las Vegas by adding a car hire and/or hotel booking to your travel itinerary.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Dulles Intl to Las Vegas?

Why should you use Cheapflights to find cheap flight tickets from Dulles Intl to Las Vegas?

Can Cheapflights find flights from Dulles Intl to Las Vegas with no change fees?

Can Cheapflights notify me if prices for flights from Dulles Intl to Las Vegas become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Dulles Intl to Las Vegas
Explore the most affordable flight options available from Dulles Intl to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 4 July 2025.