RM550 Cheap Flights from Las Vegas (LAS) to Washington (IAD)

View RM550 flight on Sat, 19 Jul 2025Opens in a new window

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

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

Prices were available within the past 7 days and start at RM550 for one-way flights and RM1,100 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, 19 Jul - Sat, 26 Jul
LAS
Las Vegas
IAD
Washington
RM1,100 Return, found 1 day ago
RM1,100
Return
found 1 day ago
Select Delta flight, departing Sat, 19 Jul from Las Vegas to Washington, returning Sat, 26 Jul, priced at RM1,100 found 1 day ago
Delta
Tue, 22 Jul - Tue, 29 Jul
LAS
Las Vegas
IAD
Washington
RM1,104 Return, found 16 hours ago
RM1,104
Return
found 16 hours ago
Select Delta flight, departing Tue, 22 Jul from Las Vegas to Washington, returning Tue, 29 Jul, priced at RM1,104 found 16 hours ago
Delta
Tue, 22 Jul - Tue, 29 Jul
LAS
Las Vegas
IAD
Washington
RM1,109 Return, found 16 hours ago
RM1,109
Return
found 16 hours ago
Select Delta flight, departing Tue, 22 Jul from Las Vegas to Washington, returning Tue, 29 Jul, priced at RM1,109 found 16 hours ago
United
Sat, 19 Jul - Sat, 26 Jul
LAS
Las Vegas
IAD
Washington
RM1,146 Return, found 1 day ago
RM1,146
Return
found 1 day ago
Select United flight, departing Sat, 19 Jul from Las Vegas to Washington, returning Sat, 26 Jul, priced at RM1,146 found 1 day ago
United
Sat, 19 Jul - Sat, 26 Jul
LAS
Las Vegas
IAD
Washington
RM1,150 Return, found 1 day ago
RM1,150
Return
found 1 day ago
Select United flight, departing Sat, 19 Jul from Las Vegas to Washington, returning Sat, 26 Jul, priced at RM1,150 found 1 day ago
United
Tue, 22 Jul - Tue, 29 Jul
LAS
Las Vegas
IAD
Washington
RM1,152 Return, found 16 hours ago
RM1,152
Return
found 16 hours ago
Select United flight, departing Tue, 22 Jul from Las Vegas to Washington, returning Tue, 29 Jul, priced at RM1,152 found 16 hours ago
United
Tue, 22 Jul - Tue, 29 Jul
LAS
Las Vegas
IAD
Washington
RM1,156 Return, found 16 hours ago
RM1,156
Return
found 16 hours ago
Select United flight, departing Tue, 22 Jul from Las Vegas to Washington, returning Tue, 29 Jul, priced at RM1,156 found 16 hours ago
Delta
Tue, 22 Jul - Tue, 29 Jul
LAS
Las Vegas
IAD
Washington
RM1,302 Return, found 16 hours ago
RM1,302
Return
found 16 hours ago
Select Delta flight, departing Tue, 22 Jul from Las Vegas to Washington, returning Tue, 29 Jul, priced at RM1,302 found 16 hours ago
Delta
Tue, 22 Jul - Tue, 29 Jul
LAS
Las Vegas
IAD
Washington
RM1,324 Return, found 16 hours ago
RM1,324
Return
found 16 hours ago
Select Delta flight, departing Tue, 22 Jul from Las Vegas to Washington, returning Tue, 29 Jul, priced at RM1,324 found 16 hours ago
American Airlines
Sat, 19 Jul - Sat, 26 Jul
LAS
Las Vegas
IAD
Washington
RM1,530 Return, found 1 day ago
RM1,530
Return
found 1 day ago
Select American Airlines flight, departing Sat, 19 Jul from Las Vegas to Washington, returning Sat, 26 Jul, priced at RM1,530 found 1 day ago

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

May is typically the cheapest month to fly

From RM 466 - RM 1,093 per traveller.

Graph displaying average flight prices per month

Las Vegas to Washington route information
Origin airport
Harry Reid Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
American Airlines, Delta, United
Return price
RM1,100
Distance
3297 km
Average flight time
8 hours 55 mins

Perfect flights from Las Vegas to Washington

Your Journey from Las Vegas to Washington

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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 Harry Reid Intl. to Washington Dulles 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 Las Vegas to Washington Flights

Experience the joy of finding cheap flights from Harry Reid Intl. to Washington Dulles Intl. that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from RM550 and roundtrip prices from RM1,100*.
 

Pre-Flight Essentials

Ensure a smooth journey from Las Vegas to Washington 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 Washington

Picture yourself stepping off the plane in Washington 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 Las Vegas to Washington 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 Las Vegas to Washington.
 

Beyond the Flight – Exploring Washington

With Expedia, your adventure extends beyond the flight. Explore Washington 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 Las Vegas to Washington 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 LAS to IAD?
Start packing your bags, because round-trip journeys from LAS to Washington Dulles Intl. Airport (IAD) start from RM1,100. That's based on fares advertised within the last 7 days on Expedia for flights departing within the next year. Prices can go up quickly, so book now to score the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Harry Reid Airport (formerly McCarran Airport) to Dulles Intl. Airport?
Most flights can be conveniently cancelled online, but whether or not you are charged a fee varies between airlines. If you do need to cancel your holiday, follow the easy instructions in the Customer Service Portal.
How do I find cheap flights from Harry Reid Airport (formerly McCarran Airport) to IAD 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 LAS to Washington Dulles Intl. Airport (IAD) flights, you'll see a "no change fees" filter for you to select.
How many hours is the flight from Harry Reid Airport (formerly McCarran Airport) to Dulles Intl. Airport?
The average flight time between LAS (LAS) and IAD (IAD) is 8 hours and 1 minute. If you're travelling with kids, it's always a good idea to pack some fruit or snacks in your carry-on bag.
How far is the flight from Harry Reid Airport (formerly McCarran Airport) to Dulles Intl. Airport?
Around 3,300 kilometres separates Las Vegas and Chantilly, so pack some entertainment to help you fill in a few hours. That action-packed novel you haven't finished will do the trick.
Which airlines fly direct from Harry Reid Airport (formerly McCarran Airport) to IAD?
United Airlines (UA) will take you from Harry Reid Airport (formerly McCarran Airport) to Dulles Intl. Airport safely and comfortably. Choose from 60 direct flights each month on this route.
Are LAS to Dulles Intl. Airport flight tickets cheaper when they're purchased at the last minute?
Flight prices are always on the move, so there are no guarantees. While last-minute flight deals between Harry Reid Airport (formerly McCarran Airport) and Dulles Intl. Airport are of course possible, it's also a good idea to keep a close eye on prices well before you fly. In fact, some airlines publish their prices up to 12 months prior to the departure date. Expedia is continuously updating the biggest bargains around, so keep checking back and be ready to grab your seat when fare prices drop.

Explore a world of travel with Expedia

*Available to Expedia members.