
CA $130 Cheap Flights from Washington (IAD) to Las Vegas (LAS)
View CA $130 flight on Wed, Jan 6, 2027
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Popular airlines from Washington Dulles International 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 CA $130 for one-way flights and CA $261 for roundtrip, for the period specified. Prices and availability are subject to change.
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One way
Roundtrip
Sat, Feb 6 - Sat, Feb 13 · IAD · Roundtrip
Fri, Jan 15 - Tue, Jan 19 · IAD · Roundtrip
Wed, Dec 9 - Thu, Dec 17 · IAD · Roundtrip
Tue, Dec 15 - Tue, Jan 19 · IAD · Roundtrip
Tue, Feb 16 - Tue, Feb 23 · IAD · Roundtrip
Wed, Dec 9 - Sat, Dec 12 · IAD · Roundtrip
Wed, Feb 17 - Tue, Mar 2 · IAD · Roundtrip
Tue, Feb 16 - Tue, Feb 23 · IAD · Roundtrip
Tue, Feb 9 - Tue, Feb 9 · IAD · Roundtrip
Thu, Apr 1 - Sun, Apr 4 · IAD · Roundtrip
Alternative airports near Las Vegas
Prices were available within the past 7 days. Prices and availability are subject to change.
6 min
Find the cheapest month to fly from Washington (IAD) to Las Vegas (LAS)
November is typically the cheapest month to fly
From CA $185 - CA $607 per traveller.
View flights in November
Insights are based on prices from searches for economy trips of 10 days or less on our sites in the last 12 months. Insights are informative only and current prices may differ.
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Washington to Las Vegas Flights
The easy way to book your flights from Washington to Las Vegas
With Expedia, it’s simple to find and book flights to Las Vegas from Washington whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 6 airlines that cover this route. There are United Airlines, Frontier Airlines nonstop flights to Harry Reid Intl., too.
Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Washington to Las Vegas today, tomorrow, or this week.
Save dollars with cheap flights from Washington Dulles Intl., IAD to Harry Reid Intl., LAS
Sort your search results by price to find great deals on your flight from Washington to Las Vegas—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Las Vegas from Washington currently is just CA $261 rising to CA $710.
Here are more money-saving tips:
- Fly in February when flight prices are normally at their lowest
- Book about a month to 6 weeks before you travel for the best prices to Las Vegas
- Avoid peak season and weekends when flights can cost more
- Early morning and late-night flights are sometimes cheaper, so try varying your travel times
- One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free!
Reasons to choose Expedia for your flight to Las Vegas from Washington
Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Las Vegas with Expedia today.
Frequently Asked Questions
How much does a flight from Washington, DC (IAD-Washington Dulles Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.) cost?
You can find cheap one-way flights from CA $130 and cheap return flights CA $261 IAD to LAS with Expedia. One-way flights typically cost between CA$369 and CA$1302. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when IAD to LAS ticket fares go up or down.
What is the cheapest month to fly from Washington, DC (IAD) to Las Vegas, NV (LAS)?
The cheapest months to fly from Washington, DC (IAD) to Las Vegas, NV (LAS) are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Washington, DC (IAD-Washington Dulles Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.)?
There are 2 airlines offering direct flights from Washington, DC (IAD-Washington Dulles Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.). Here are the carriers:
* United operates 23 direct flights from Washington, DC (IAD-Washington Dulles Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.) every week.
* Frontier Airlines operates 7 direct flights from Washington, DC (IAD-Washington Dulles Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.) every week.
How do I find cheap flights from Washington, DC (IAD) to Las Vegas, NV (LAS)?
To find a cheap flight from Washington, DC (IAD) to Las Vegas, NV (LAS), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Washington, DC (IAD-Washington Dulles Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.)?
The best airline to fly with from Washington, DC (IAD-Washington Dulles Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.) will differ from traveler to traveler. If you like to fly early, United offers early morning flights. If price is the most important factor, Frontier Airlines typically offers the lowest fares. United offers the most daily flights from Washington, DC (IAD-Washington Dulles Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Washington, DC (IAD-Washington Dulles Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.)?
The best time to fly from Washington, DC (IAD-Washington Dulles Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.) is typically September. This month offers a great balance—prices are reasonable at around CA$453 for a return flight, and you'll have plenty of flight options since it's a popular time to travel. September brings pleasant weather to Las Vegas, making it ideal for exploring. If you're flexible, September gives you both affordable fares and excellent flight schedules to work with.
How many flights per day from Washington, DC (IAD-Washington Dulles Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.)?
You'll find around 4 nonstop flights per day from Washington, DC (IAD-Washington Dulles Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.). For even more choices, look at flights that include layovers, as there are approximately 113 connecting flights per day. Some common connection points include Seattle - Tacoma Intl. (SEA), Hartsfield-Jackson Atlanta Intl. (ATL), and Denver Intl. (DEN).
What is the earliest flight from Washington, DC (IAD-Washington Dulles Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.)?
The earliest flight from Washington, DC (IAD-Washington Dulles Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.) typically departs at around 5:00 AM local time. This flight is operated by American Airlines. This is a seasonal service active in February and March. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Washington, DC (IAD-Washington Dulles Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.)?
You'll generally find the most flights from Washington Dulles Intl. (IAD) to Harry Reid International Airport (LAS) on a Friday, with around 57 flights available. This gives you a good selection of options for your travel plans. Flight schedules are quite consistent throughout the week, with only a slight variation between days. Major airlines on this route include United, Delta, and American Airlines.
What are the most popular departure times for flights from Washington, DC (IAD-Washington Dulles Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.)?
The most popular departure times for flights from Washington Dulles Intl. (IAD) to Las Vegas, NV (LAS) are in the early morning, from 6am to 9am. Many major carriers, including United, Delta and Alaska Airlines, offer flights during this window. Many travelers prefer this because it allows for an early arrival in Las Vegas, giving you more time to enjoy your destination.
How long does it take to fly from Washington, DC (IAD-Washington Dulles Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.)?
A nonstop flight from Washington, DC (IAD-Washington Dulles Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.) typically takes around 5 hours 18 minutes. This route covers a distance of approximately 3317 kilometres. If you opt for a one-stop flight, your travel time will be longer, usually around 7 hours 48 minutes. Flights with two or more stops will take even longer, averaging about 12 hours 30 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic, so it's always a good idea to factor in some extra time when planning your trip.
Can you fly business or first class from Washington, DC (IAD-Washington Dulles Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.)?
Yes, you can fly business class or first class between IAD and LAS. You can fly business class with Frontier Airlines and Delta.
First class cabins are available on Alaska Airlines, United, Delta, and American Airlines.
How much is a business class flight from Washington, DC (IAD-Washington Dulles Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.)?
A non-stop, one-way business class flight from Washington, DC (IAD-Washington Dulles Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.) is usually around CA$1,040 - CA$1,101. Prices often fluctuate based on seasonality and how early you book. You may also be able to find a cheaper business class journey between Washington, DC (IAD-Washington Dulles Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.) if you opt for a connecting flight.
How do I earn miles on a Washington, DC (IAD-Washington Dulles Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.) flight with Expedia?
It's easy to earn miles on a Washington, DC (IAD-Washington Dulles Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.
*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Las Vegas, NV (LAS) from Washington, DC (IAD)?
If you're planning to travel to Las Vegas from Washington Dulles Intl. (IAD), you can fly directly into Harry Reid International Airport (LAS). Some flights may connect through major hubs like Seattle - Tacoma Intl. (SEA), Denver Intl. (DEN), or San Diego Intl. (SAN) before reaching Las Vegas. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Washington, DC (IAD-Washington Dulles Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.) at the last minute?
Typically, booking a last minute flight from Washington, DC (IAD-Washington Dulles Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Washington, DC (IAD-Washington Dulles Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.) flight and hotel package?
Securing a Washington, DC (IAD-Washington Dulles Intl.) to Las Vegas, NV (LAS-Harry Reid Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Washington, DC (IAD) to Las Vegas, NV (LAS)?
If you booked your Washington, DC (IAD) to Las Vegas, NV (LAS) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.
Travel information
| Origin airport | Washington Dulles International Airport |
|---|---|
| Destination airport | Harry Reid Intl. Airport |
| Distance | 3,316 km away |
| Airlines serving | Alaska Airlines, Frontier Airlines, United, Delta, American Airlines, Sun Country Airlines |
| Popular airline | Alaska Airlines |
| Roundtrip price | CA $261 |
| Average flight time | 6 hours 29 mins |
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