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

View $129 flight on Tue, Dec 9, 2025Opens in a new window

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

Prices were available within the past 7 days and start at $129 for one-way flights and $219 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Mon, Aug 25 - Sat, Aug 30
DCA
Washington
LAS
Las Vegas
$219 Roundtrip, just found
$219
Roundtrip
just found
Select Delta flight, departing Mon, Aug 25 from Washington to Las Vegas, returning Sat, Aug 30, priced at $219 just found
Delta
Sat, Sep 13 - Tue, Sep 16
DCA
Washington
LAS
Las Vegas
$222 Roundtrip, found 1 hour ago
$222
Roundtrip
found 1 hour ago
Select Delta flight, departing Sat, Sep 13 from Washington to Las Vegas, returning Tue, Sep 16, priced at $222 found 1 hour ago
Delta
Tue, Sep 9 - Fri, Sep 12
DCA
Washington
LAS
Las Vegas
$232 Roundtrip, just found
$232
Roundtrip
just found
Select Delta flight, departing Tue, Sep 9 from Washington to Las Vegas, returning Fri, Sep 12, priced at $232 just found
Delta
Sun, Aug 24 - Wed, Aug 27
DCA
Washington
LAS
Las Vegas
$234 Roundtrip, just found
$234
Roundtrip
just found
Select Delta flight, departing Sun, Aug 24 from Washington to Las Vegas, returning Wed, Aug 27, priced at $234 just found
Delta
Tue, Oct 28 - Wed, Oct 29
DCA
Washington
LAS
Las Vegas
$251 Roundtrip, found 5 hours ago
$251
Roundtrip
found 5 hours ago
Select Delta flight, departing Tue, Oct 28 from Washington to Las Vegas, returning Wed, Oct 29, priced at $251 found 5 hours ago
Delta
Tue, Aug 26 - Sun, Aug 31
DCA
Washington
LAS
Las Vegas
$252 Roundtrip, just found
$252
Roundtrip
just found
Select Delta flight, departing Tue, Aug 26 from Washington to Las Vegas, returning Sun, Aug 31, priced at $252 just found
Delta
Sat, Oct 25 - Sat, Nov 1
DCA
Washington
LAS
Las Vegas
$254 Roundtrip, just found
$254
Roundtrip
just found
Select Delta flight, departing Sat, Oct 25 from Washington to Las Vegas, returning Sat, Nov 1, priced at $254 just found
Flights from Washington (DCA) to Las Vegas (LAS)
Origin airport
Ronald Reagan Washington National
Destination airport
Harry Reid Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, JetBlue Airways, Southwest Airlines, United
Popular airline
JetBlue Airways
Distance
2083 mi
Average flight time
3 hours 15 mins

Frequently asked questions

How much is a Delta Air Lines flight from Ronald Reagan Washington National Airport (DCA) to Harry Reid Intl. Airport (LAS)?
Apply the "Price (lowest to highest)" filter on Expedia to search for cheap Delta Air Lines return flights from $219 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.
What is the cheapest month to fly from DCA to LAS with Delta Air Lines?
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.
What is the cheapest time to book flights from Ronald Reagan Washington National Airport (DCA) to Harry Reid Intl. Airport (LAS) with Delta Air Lines?
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.
Does Delta Air Lines fly nonstop from Ronald Reagan Washington National Airport (DCA) to Harry Reid Intl. Airport (LAS)?
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.
What is the earliest Delta Air Lines flight from DCA to LAS?
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.
What airports does Delta Air Lines fly into in Las Vegas?
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.
Why fly with Delta Air Lines from DCA to LAS?
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.
Can I change or cancel my Delta Air Lines flight from Ronald Reagan Washington National Airport (DCA) to Harry Reid Intl. Airport (LAS)?
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."
*Available to One Key members.