Cheap Flights from Washington (IAD) to Las Vegas (LAS) from HK$1,015~

View HK$1,015 flight on Wed, 17 Sep 2025Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Harry Reid Intl. Airport (LAS)

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Find Cheap Flights from Washington (IAD) to Las Vegas (LAS)

Prices were available within the past 7 days and start at HK$1,015 for one-way flights and HK$2,210 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, 24 Nov - Thu, 27 Nov
IAD
Washington
LAS
Las Vegas
HK$2,210 Return, found 3 days ago
HK$2,210
Return
found 3 days ago
Select United flight, departing Mon, 24 Nov from Washington to Las Vegas, returning Thu, 27 Nov, priced at HK$2,210 found 3 days ago
United
Mon, 24 Nov - Thu, 27 Nov
IAD
Washington
LAS
Las Vegas
HK$2,727 Return, found 3 days ago
HK$2,727
Return
found 3 days ago
Select United flight, departing Mon, 24 Nov from Washington to Las Vegas, returning Thu, 27 Nov, priced at HK$2,727 found 3 days ago
United
Mon, 24 Nov - Thu, 27 Nov
IAD
Washington
LAS
Las Vegas
HK$2,919 Return, found 3 days ago
HK$2,919
Return
found 3 days ago
Select United flight, departing Mon, 24 Nov from Washington to Las Vegas, returning Thu, 27 Nov, priced at HK$2,919 found 3 days ago
Delta
Mon, 24 Nov - Thu, 27 Nov
IAD
Washington
LAS
Las Vegas
HK$3,082 Return, found 3 days ago
HK$3,082
Return
found 3 days ago
Select Delta flight, departing Mon, 24 Nov from Washington to Las Vegas, returning Thu, 27 Nov, priced at HK$3,082 found 3 days ago
United
Mon, 24 Nov - Thu, 27 Nov
IAD
Washington
LAS
Las Vegas
HK$3,114 Return, found 3 days ago
HK$3,114
Return
found 3 days ago
Select United flight, departing Mon, 24 Nov from Washington to Las Vegas, returning Thu, 27 Nov, priced at HK$3,114 found 3 days ago
United
Mon, 24 Nov - Thu, 27 Nov
IAD
Washington
LAS
Las Vegas
HK$3,125 Return, found 3 days ago
HK$3,125
Return
found 3 days ago
Select United flight, departing Mon, 24 Nov from Washington to Las Vegas, returning Thu, 27 Nov, priced at HK$3,125 found 3 days ago
United
Mon, 24 Nov - Thu, 27 Nov
IAD
Washington
LAS
Las Vegas
HK$3,147 Return, found 3 days ago
HK$3,147
Return
found 3 days ago
Select United flight, departing Mon, 24 Nov from Washington to Las Vegas, returning Thu, 27 Nov, priced at HK$3,147 found 3 days ago
Delta
Sat, 29 Nov - Fri, 5 Dec
IAD
Washington
LAS
Las Vegas
HK$3,224 Return, found 5 hours ago
HK$3,224
Return
found 5 hours ago
Select Delta flight, departing Sat, 29 Nov from Washington to Las Vegas, returning Fri, 5 Dec, priced at HK$3,224 found 5 hours ago
United
Mon, 24 Nov - Wed, 26 Nov
IAD
Washington
LAS
Las Vegas
HK$3,308 Return, found 3 days ago
HK$3,308
Return
found 3 days ago
Select United flight, departing Mon, 24 Nov from Washington to Las Vegas, returning Wed, 26 Nov, priced at HK$3,308 found 3 days ago
American Airlines
Sat, 29 Nov - Fri, 5 Dec
IAD
Washington
LAS
Las Vegas
HK$6,373 Return, found 5 hours ago
HK$6,373
Return
found 5 hours ago
Select American Airlines flight, departing Sat, 29 Nov from Washington to Las Vegas, returning Fri, 5 Dec, priced at HK$6,373 found 5 hours ago

Find the cheapest month to fly from Washington (IAD) to Las Vegas (LAS)

May is typically the cheapest month to fly

From HK$879 - HK$3,780 per traveller.

Graph displaying average flight prices per month

Washington to Las Vegas route information
Origin airport
Washington Dulles Intl.
Destination airport
Harry Reid Intl.
Return price
HK$2,210
Distance
3297 km
Average flight time
2 hours 41 mins

Flights from Chantilly to Las Vegas

Book cheap flights from Chantilly (IAD) to Las Vegas (LAS) on Expedia.com.hk. Find the best flight deals to destinations around the world for your next leisure or business travel on Expedia.com.hk.

Search for flights from Chantilly (IAD) to Las Vegas (LAS) to find great flight deals suitable to your travel date and time. Expedia.com.hk flight booking search engine is simple to use and looking for cheap flights is as easy as a click of a mouse or on your mobile devices.

Be assured that you’re seeing the best price guaranteed! Our friendly customer service representatives are here to serve you 24 hours day to provide assistance and answer any questions that you may have about booking your Chantilly (IAD) to Las Vegas (LAS) trip. Call us at 3077-4857 (direct number - 24 hours day for English).

Save more when combine your Las Vegas flight with a hotel for a package deal! Discover additional savings by booking in advance. Now you can find activities in Las Vegas and things to do in Las Vegas for your perfect vacation with Expedia Thing to Do.

If you would like to book flights to Las Vegas more flexibly, many prefer to purchase one-way tickets with options to take different airlines. A one way ticket to Las Vegas is HK$1,015 now!

 

Frequently asked questions

How much is a flight from Dulles Intl. Airport to Harry Reid Airport (formerly McCarran Airport)?
If you're planning on traveling from IAD to Harry Reid Airport (formerly McCarran Airport), round-trip journeys start from HK$2,210. This figure is based on fares available within the last 7 days on Expedia for flights departing within the next year, so don't let a good deal pass you by. Book today and save yourself money and time. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Washington Dulles Intl. Airport (IAD) to Harry Reid Airport (formerly McCarran Airport)?
The majority of flights can be canceled online, but every airline has different terms and conditions. If you do need to cancel your flight, go to our Customer Service Portal and follow the instructions.
How do I find cheap flights from Washington Dulles Intl. Airport (IAD) to LAS that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Dulles Intl. Airport to LAS flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Washington Dulles Intl. Airport (IAD) to LAS?
Expect to be up above the clouds for a while, as the flight distance from Washington Dulles Intl. Airport (IAD) to LAS is 3,300 kilometers. Put together a playlist of your favorite podcasts before leaving home to keep yourself entertained during your trip.
Which airlines fly direct from Washington Dulles Intl. Airport (IAD) to LAS?
Check out the deals on offer with United Airlines (UA) if you want to travel directly from IAD to LAS. This popular carrier offers 60 flights every month, so you're sure to find one that fits your travel schedule.
Are IAD to LAS flight tickets cheaper when they're purchased at the last minute?
Last-minute bookings from Dulles Intl. Airport to LAS can be hit-or-miss. You may be able to find a bargain, but then again, you could miss out entirely! If you'd prefer to play it safe and start your trip planning early, Expedia compares flight deals up to a year in advance. Just bear in mind that not all airlines release their prices so far in advance. Our top tip? Check back often as updates are made frequently.

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