S$165 Cheap Flights from Washington to Las Vegas

View S$165 flight on Tue, 23 Sep, 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 S$165 for one-way flights and S$304 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frontier Airlines
Sat, 12 Jul - Tue, 15 Jul
IAD
Washington
LAS
Las Vegas
S$304 Return, found 4 days ago
S$304
Return
found 4 days ago
Select Frontier Airlines flight, departing Sat, 12 Jul from Washington to Las Vegas, returning Tue, 15 Jul, priced at S$304 found 4 days ago
Frontier Airlines
Sat, 12 Jul - Sat, 19 Jul
IAD
Washington
LAS
Las Vegas
S$312 Return, found 4 days ago
S$312
Return
found 4 days ago
Select Frontier Airlines flight, departing Sat, 12 Jul from Washington to Las Vegas, returning Sat, 19 Jul, priced at S$312 found 4 days ago
Delta
Wed, 20 Aug - Wed, 27 Aug
IAD
Washington
LAS
Las Vegas
S$328 Return, found 3 days ago
S$328
Return
found 3 days ago
Select Delta flight, departing Wed, 20 Aug from Washington to Las Vegas, returning Wed, 27 Aug, priced at S$328 found 3 days ago
Delta
Wed, 20 Aug - Wed, 27 Aug
IAD
Washington
LAS
Las Vegas
S$331 Return, found 3 days ago
S$331
Return
found 3 days ago
Select Delta flight, departing Wed, 20 Aug from Washington to Las Vegas, returning Wed, 27 Aug, priced at S$331 found 3 days ago
United
Wed, 20 Aug - Wed, 27 Aug
IAD
Washington
LAS
Las Vegas
S$331 Return, found 3 days ago
S$331
Return
found 3 days ago
Select United flight, departing Wed, 20 Aug from Washington to Las Vegas, returning Wed, 27 Aug, priced at S$331 found 3 days ago
Delta
Fri, 8 Aug - Mon, 18 Aug
IAD
Washington
LAS
Las Vegas
S$341 Return, found 3 days ago
S$341
Return
found 3 days ago
Select Delta flight, departing Fri, 8 Aug from Washington to Las Vegas, returning Mon, 18 Aug, priced at S$341 found 3 days ago
United
Sun, 27 Jul - Tue, 12 Aug
IAD
Washington
LAS
Las Vegas
S$344 Return, found 3 days ago
S$344
Return
found 3 days ago
Select United flight, departing Sun, 27 Jul from Washington to Las Vegas, returning Tue, 12 Aug, priced at S$344 found 3 days ago
Delta
Mon, 21 Jul - Mon, 4 Aug
IAD
Washington
LAS
Las Vegas
S$367 Return, found 3 days ago
S$367
Return
found 3 days ago
Select Delta flight, departing Mon, 21 Jul from Washington to Las Vegas, returning Mon, 4 Aug, priced at S$367 found 3 days ago
Frontier Airlines
Sun, 13 Jul - Mon, 14 Jul
IAD
Washington
LAS
Las Vegas
S$368 Return, found 4 days ago
S$368
Return
found 4 days ago
Select Frontier Airlines flight, departing Sun, 13 Jul from Washington to Las Vegas, returning Mon, 14 Jul, priced at S$368 found 4 days ago
Hawaiian Airlines
Sun, 13 Jul - Thu, 31 Jul
IAD
Washington
LAS
Las Vegas
S$478 Return, found 3 days ago
S$478
Return
found 3 days ago
Select Hawaiian Airlines flight, departing Sun, 13 Jul from Washington to Las Vegas, returning Thu, 31 Jul, priced at S$478 found 3 days ago

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

May is typically the cheapest month to fly

From S$143 - S$612 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
S$304
Distance
3297 km
Average flight time
2 hours 2 mins

Perfect flights from Washington to Las Vegas

Your Journey from Washington to Las Vegas

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Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including Delta, United, American Airlines, Hawaiian Airlines, Frontier Airlines. Our selection of flights from Washington Dulles Intl. to Harry Reid Intl. caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

Maximizing Value with Washington to Las Vegas Flights

Experience the joy of finding cheap flights from Washington Dulles Intl. to Harry Reid Intl. that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$165 and roundtrip prices from S$304*.
 

Pre-Flight Essentials

Ensure a smooth journey from Washington to Las Vegas with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant Las Vegas

Picture yourself stepping off the plane in Las Vegas and immersing yourself in the unique atmosphere of . From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your Washington to Las Vegas Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from Washington to Las Vegas.
 

Beyond the Flight – Exploring Las Vegas

With Expedia, your adventure extends beyond the flight. Explore Las Vegas at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from Washington to Las Vegas with Confidence

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*Note: Prices may vary based on availability and are subject to change.

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 S$304. 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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