Beginning of main content
Trip Type
Flight 1
Flight 2
Flight 3
Flight 4
Flight 5

Search over 1,000,000 properties worldwide and 550 airlines worldwide.

Search over a million flights, hotels, packages, and more

No Expedia cancellation fee to change or cancel almost any hotel reservation.

Cheap IAD to LAS Flights

Prices found within past 7 days. Prices and availability subject to change. Additional terms may apply.

Washington to Las Vegas route information

Origin Airport Washington Dulles Intl.
Destination Airport McCarran Intl.
Airlines Serving Alaska Airlines, American Airlines, Delta, Frontier Airlines, Sun Country Airlines, United
Flight Price $168
Distance 2,060 mi

Cheap IAD to LAS Flights

  • Question : What is the cheapest day to fly to Las Vegas?
    Answer : Mar 12th has bookings (as of Mar 11th) as cheap as $147. That comes in 64% below the average price for this route. Saving on booking fees means you'll have more money to spend on your trip.
  • Question : How long does it take to fly from Dulles to Las Vegas?
    Answer : If you are flying on United Airlines, your flight will be just about five hours and 14 minutes (don't forget, there is a time difference of three hours).
  • Question : Which airline has the least delays from Dulles to Las Vegas?
    Answer : Booking with Frontier Airlines means you will arrive to Las Vegas about the time you were supposed to. In fact, this timely airline has an 81% on-time average. Of course, it never hurts to be prepared. If you’re on Delta Air Lines, be sure to sign up for the delay notifications to stay up to date with your flight’s status.
  • Question : How much is a plane ticket to Las Vegas (LAS) from Dulles (IAD)?
    Answer : Cost can range from $147 to $1,284, prices for IAD to LAS change less than the majority of routes in the United States. The further out you book, the more likely you are to save on your trip.
  • Question : How long do most people visit Las Vegas?
    Answer : Of course, you're not most people, but if you were, you'd stay roughly five days.
  • Question : How many flights are there per day from Dulles to Las Vegas?
    Answer : The number of flight times varies by day of the week, but on average, IAD to LAS sees six different options. You won't have as many options on this route as most other routes departing the United States.
  • Question : Do some days of the week have more flight times than others?
    Answer : With six total flight time options, Sunday provides the most flexibility from IAD to LAS. Friday currently offers the least amount of flight times with five options.

Mar 14, 2019

Just surprised that no one was at the check in. I’d gotten there a hour earlier. Went fine though.

Feb 17, 2019

Bumpy landing...

Feb 10, 2019

Need the redeye for my return😕

Feb 10, 2019

Unhappy with unable to take a carry on bag

Feb 3, 2019

Very Bumpy ride though, due to bad weather on approach to Las Vegas.

Jan 12, 2019

The seats are so small my 6'2 husband can't fit in them and at 5'3 I barely do so myself. What average size did United used to design those seat??????

Jan 3, 2019

My seats in row 12 d-f was too close to seats in front of us. On the 737.

Oct 6, 2018

The plane was not the cleanest.

Sep 16, 2018

I don't like to fly but this was a good trip.

Sep 7, 2018

I don’t like the additional charges for baggage