S$169 Cheap Flights from Washington to Las Vegas

View S$169 flight on Fri, 9 Jan, 2026Opens 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$169 for one-way flights and S$547 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sun, 4 Jan - Sat, 10 Jan
IAD
Washington
LAS
Las Vegas
S$547 Return, found 1 day ago
S$547
Return
found 1 day ago
Select Delta flight, departing Sun, 4 Jan from Washington to Las Vegas, returning Sat, 10 Jan, priced at S$547 found 1 day ago
United
Sun, 4 Jan - Sat, 10 Jan
IAD
Washington
LAS
Las Vegas
S$600 Return, found 1 day ago
S$600
Return
found 1 day ago
Select United flight, departing Sun, 4 Jan from Washington to Las Vegas, returning Sat, 10 Jan, priced at S$600 found 1 day ago
United
Sun, 4 Jan - Sat, 10 Jan
IAD
Washington
LAS
Las Vegas
S$607 Return, found 1 day ago
S$607
Return
found 1 day ago
Select United flight, departing Sun, 4 Jan from Washington to Las Vegas, returning Sat, 10 Jan, priced at S$607 found 1 day ago
United
Sun, 4 Jan - Sat, 10 Jan
IAD
Washington
LAS
Las Vegas
S$613 Return, found 1 day ago
S$613
Return
found 1 day ago
Select United flight, departing Sun, 4 Jan from Washington to Las Vegas, returning Sat, 10 Jan, priced at S$613 found 1 day ago
Delta
Sun, 4 Jan - Sat, 10 Jan
IAD
Washington
LAS
Las Vegas
S$669 Return, found 1 day ago
S$669
Return
found 1 day ago
Select Delta flight, departing Sun, 4 Jan from Washington to Las Vegas, returning Sat, 10 Jan, priced at S$669 found 1 day ago
Delta
Sun, 4 Jan - Sat, 10 Jan
IAD
Washington
LAS
Las Vegas
S$682 Return, found 1 day ago
S$682
Return
found 1 day ago
Select Delta flight, departing Sun, 4 Jan from Washington to Las Vegas, returning Sat, 10 Jan, priced at S$682 found 1 day ago
United
Sun, 4 Jan - Sat, 10 Jan
IAD
Washington
LAS
Las Vegas
S$721 Return, found 1 day ago
S$721
Return
found 1 day ago
Select United flight, departing Sun, 4 Jan from Washington to Las Vegas, returning Sat, 10 Jan, priced at S$721 found 1 day ago
United
Sun, 4 Jan - Sat, 10 Jan
IAD
Washington
LAS
Las Vegas
S$728 Return, found 1 day ago
S$728
Return
found 1 day ago
Select United flight, departing Sun, 4 Jan from Washington to Las Vegas, returning Sat, 10 Jan, priced at S$728 found 1 day ago
United
Sun, 4 Jan - Sat, 10 Jan
IAD
Washington
LAS
Las Vegas
S$734 Return, found 1 day ago
S$734
Return
found 1 day ago
Select United flight, departing Sun, 4 Jan from Washington to Las Vegas, returning Sat, 10 Jan, priced at S$734 found 1 day ago
American Airlines
Sun, 4 Jan - Sat, 10 Jan
IAD
Washington
LAS
Las Vegas
S$746 Return, found 1 day ago
S$746
Return
found 1 day ago
Select American Airlines flight, departing Sun, 4 Jan from Washington to Las Vegas, returning Sat, 10 Jan, priced at S$746 found 1 day ago

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

May is typically the cheapest month to fly

From S$159 - S$652 per traveller.
Washington to Las Vegas route information
Origin airport
Washington Dulles Intl.
Destination airport
Harry Reid Intl.
Airlines serving
American Airlines, Delta, United
Return price
S$547
Distance
3297 km
Average flight time
2 hours 22 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. 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$169 and roundtrip prices from S$547*.
 

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$547. 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.

Explore a world of travel with Expedia

*Available to Expedia members.