$179 Cheap American Airlines flights Washington (IAD) to Las Vegas (LAS)

Grab cheap return American Airlines flights from $357 from IAD to LAS by organizing your results from “Price (lowest to highest)” on Expedia. Or look for bargains from $179 for a one-way trip.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Browse for return or one-way flights to Las Vegas in January or June. You could find a cheap fare with American Airlines during these quieter months.

To find cheap American Airlines fares from Washington Dulles Intl. Airport (IAD) to Harry Reid Intl. Airport (LAS), start searching one to three months before your intended departure. Securing domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also affect the overall price. Sunday is typically the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking on a Sunday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Click on the “Nonstop” filter when browsing for direct American Airlines flights from IAD to LAS. You can also compare other carriers servicing the same direct route.

Search American Airlines’s earliest flights from IAD to LAS by checking the “Morning” and “Early Morning” filters. Not only will you arrive sooner, early departures also have a 20% less chance of being canceled.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

American Airlines flights from Washington Dulles Intl. Airport (IAD) to Las Vegas come in to Harry Reid Intl. Airport (LAS). This is the main entry point to this destination.

Changes are typically free within 24 hours of making a booking, but your airline may charge you after that time. For further information about modifying your reservation, go to your “Trips,” select your flight and click on “Manage Booking.” If you want the flexibility to adjust your plans without additional costs, tick the “No cancel fee” or “Changes included” filter when planning your next escape.