€111 Cheap Flights Washington to Las Vegas (IAD-LAS)

View €111 flight on Sat, 8 Nov 2025Opens in a new window

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

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Cheap flights from Washington to Las Vegas (IAD-LAS)

Prices were available within the past 7 days and start at €111 for one-way flights and €222 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 30 Aug - Fri, 5 Sep
IAD
Washington
LAS
Las Vegas
€222 Return, found 4 days ago
€222
Return
found 4 days ago
Select Delta flight, departing Sat, 30 Aug from Washington to Las Vegas, returning Fri, 5 Sep, priced at €222 found 4 days ago
United
Sat, 30 Aug - Fri, 5 Sep
IAD
Washington
LAS
Las Vegas
€226 Return, found 4 days ago
€226
Return
found 4 days ago
Select United flight, departing Sat, 30 Aug from Washington to Las Vegas, returning Fri, 5 Sep, priced at €226 found 4 days ago
Delta
Sat, 20 Sep - Sat, 27 Sep
IAD
Washington
LAS
Las Vegas
€227 Return, found 4 days ago
€227
Return
found 4 days ago
Select Delta flight, departing Sat, 20 Sep from Washington to Las Vegas, returning Sat, 27 Sep, priced at €227 found 4 days ago
United
Sat, 20 Sep - Sat, 27 Sep
IAD
Washington
LAS
Las Vegas
€230 Return, found 4 days ago
€230
Return
found 4 days ago
Select United flight, departing Sat, 20 Sep from Washington to Las Vegas, returning Sat, 27 Sep, priced at €230 found 4 days ago
Delta
Sat, 20 Sep - Sat, 27 Sep
IAD
Washington
LAS
Las Vegas
€231 Return, found 4 days ago
€231
Return
found 4 days ago
Select Delta flight, departing Sat, 20 Sep from Washington to Las Vegas, returning Sat, 27 Sep, priced at €231 found 4 days ago
Delta
Sat, 30 Aug - Fri, 5 Sep
IAD
Washington
LAS
Las Vegas
€233 Return, found 4 days ago
€233
Return
found 4 days ago
Select Delta flight, departing Sat, 30 Aug from Washington to Las Vegas, returning Fri, 5 Sep, priced at €233 found 4 days ago
United
Sat, 20 Sep - Sat, 27 Sep
IAD
Washington
LAS
Las Vegas
€235 Return, found 4 days ago
€235
Return
found 4 days ago
Select United flight, departing Sat, 20 Sep from Washington to Las Vegas, returning Sat, 27 Sep, priced at €235 found 4 days ago
United
Sat, 30 Aug - Fri, 5 Sep
IAD
Washington
LAS
Las Vegas
€237 Return, found 4 days ago
€237
Return
found 4 days ago
Select United flight, departing Sat, 30 Aug from Washington to Las Vegas, returning Fri, 5 Sep, priced at €237 found 4 days ago
Delta
Sat, 20 Sep - Sat, 27 Sep
IAD
Washington
LAS
Las Vegas
€244 Return, found 4 days ago
€244
Return
found 4 days ago
Select Delta flight, departing Sat, 20 Sep from Washington to Las Vegas, returning Sat, 27 Sep, priced at €244 found 4 days ago
American Airlines
Fri, 12 Sep - Mon, 15 Sep
IAD
Washington
LAS
Las Vegas
€273 Return, found 5 days ago
€273
Return
found 5 days ago
Select American Airlines flight, departing Fri, 12 Sep from Washington to Las Vegas, returning Mon, 15 Sep, priced at €273 found 5 days ago

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

May is typically the cheapest month to fly

From €105 - €416 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
€222
Distance
3297 km
Average flight time
2 hours 56 mins

Perfect flights from Washington to Las Vegas

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Washington to Las Vegas. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Washington Dulles Intl. to Harry Reid Intl. ticket options cater to your travel preferences, with incredible one-way fares from €111 and roundtrip prices from €222. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Harry Reid Intl. and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in Las Vegas.

Frequently asked questions

How much is a flight from Dulles Intl. Airport to Harry Reid Airport (formerly McCarran Airport)?
If you're planning on travelling from IAD to Harry Reid Airport (formerly McCarran Airport), round-trip journeys start from €222. 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 cancelled 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 kilometres. Put together a playlist of your favourite 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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