$129 Cheap Delta flights Washington (DCA) to Las Vegas (LAS)

Apply the “Price (lowest to highest)” filter on Expedia to search for cheap Delta Air Lines return flights from $221 from DCA to LAS. Affordable one-way options from $129 are available too.**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.

Delta Air Lines flights to Las Vegas tend to be more affordable in the quieter months of January and June. Whether you’re in search of a one-way or a return ticket, you could score a better deal then.

Begin your search one to three months ahead of your departure date to find cheaper fares on Delta Air Lines flights from Ronald Reagan Washington National Airport (DCA) to Harry Reid Intl. Airport (LAS). You can save 25% by booking your domestic flight 34 to 86 days in advance compared to last-minute reservations made 6 to 12 days out. You could also cut costs by buying your fare on a Sunday, as it’s 6% cheaper on average than a Monday, the most expensive day to book.* Get your timing right, and you can enjoy significant savings on domestic flights.*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.

Use the “Nonstop” filter when browsing for direct Delta Air Lines flights from DCA to LAS. You’ll also be able to compare other carriers servicing the same nonstop trip.

Filter your results by “Early Morning” and “Morning” to see the earliest flights from DCA to LAS. Leaving early means you’re less likely to experience cancellations.**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.

Delta Air Lines flights from Ronald Reagan Washington National Airport (DCA) to Las Vegas touch down at Harry Reid Intl. Airport (LAS). This is the main entry point here.

With an excellent in-flight experience and a rewarding loyalty program, Delta Air Lines is a favorite for many passengers flying from DCA to LAS. Also, if you’re a Delta SkyMiles and One Key™ member booking with Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which can be spent on future travel purchases.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

Depending on the type of ticket you purchased, a fee may apply if you cancel or reschedule your flight more than 24 hours after it’s confirmed. To find plane tickets with more flexibility, select our “No cancel fee” or “Changes included” filter when searching for flights. For more details on changing or canceling your reservation, head to “Trips,” select your flight and click on “Manage Booking.”