Southwest® flights from Washington D.C. Reagan National to Las Vegas from $139

Promo Code

Low fares from Washington D.C. Reagan National to Las Vegas

$

Washington D.C. Reagan National (DCA)to

Las Vegas (LAS)
Depart: 12/02/2026

One-way

Basic

From
$139
Seen: 15 hrs ago

Washington D.C. Reagan National (DCA)to

Las Vegas (LAS)
Depart: 11/03/2026

One-way

Basic

From
$139
Seen: 16 hrs ago

Washington D.C. Reagan National (DCA)to

Las Vegas (LAS)
Depart: 12/09/2026

One-way

Basic

From
$139
Seen: 2 hrs ago

Washington D.C. Reagan National (DCA)to

Las Vegas (LAS)
Depart: 10/31/2026

One-way

Basic

From
$139
Seen: 20 hrs ago

Washington D.C. Reagan National (DCA)to

Las Vegas (LAS)
Depart: 12/12/2026

One-way

Basic

From
$139
Seen: 23 hrs ago

Washington D.C. Reagan National (DCA)to

Las Vegas (LAS)
Depart: 11/14/2026

One-way

Basic

From
$139
Seen: 11 hrs ago

Looking for more low-fare flights?

Check out the Low Fare Calendar to find a fare that works for you. Just choose the month you want to depart and return, and we’ll show you the best fares available.

Find low fares

Explore flights from Washington D.C. Reagan National to Las Vegas

Sep 2026
From$278*
Seen: 13 hrs ago
One Way/Basic
Oct 2026
From$139*
Seen: 20 hrs ago
One Way/Basic
Nov 2026
From$139*
Seen: 11 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $164
cmp-daily-histogram-bars-legend-max-price-aria-label $508
Displaying fares for September-2026
  • DCA–LAS, 09/30/2026: From $278
    30

    Wed

    SEP

  • DCA–LAS, 10/01/2026: From $508
    01

    Thu

  • DCA–LAS, 10/02/2026: From $367
    02

    Fri

  • DCA–LAS, 10/03/2026: From $278
    03

    Sat

  • DCA–LAS, 10/04/2026: From $498
    04

    Sun

  • DCA–LAS, 10/05/2026: From $357
    05

    Mon

  • DCA–LAS, 10/06/2026: From $278
    06

    Tue

  • DCA–LAS, 10/07/2026: From $299
    07

    Wed

  • DCA–LAS, 10/08/2026: From $367
    08

    Thu

  • DCA–LAS, 10/09/2026: From $508
    09

    Fri

  • DCA–LAS, 10/10/2026: From $278
    10

    Sat

  • DCA–LAS: cmp-view-offers-disclaimer. Find Offers
    11

    Sun

  • DCA–LAS, 10/12/2026: From $367
    12

    Mon

  • DCA–LAS, 10/13/2026: From $269
    13

    Tue

  • DCA–LAS, 10/14/2026: From $269
    14

    Wed

  • DCA–LAS, 10/15/2026: From $279
    15

    Thu

  • DCA–LAS, 10/16/2026: From $289
    16

    Fri

  • DCA–LAS, 10/17/2026: From $269
    17

    Sat

  • DCA–LAS, 10/18/2026: From $365
    18

    Sun

  • DCA–LAS, 10/19/2026: From $289
    19

    Mon

  • DCA–LAS, 10/20/2026: From $199
    20

    Tue

  • DCA–LAS, 10/21/2026: From $164
    21

    Wed

  • DCA–LAS, 10/22/2026: From $249
    22

    Thu

  • DCA–LAS, 10/23/2026: From $219
    23

    Fri

  • DCA–LAS, 10/24/2026: From $199
    24

    Sat

  • DCA–LAS, 10/25/2026: From $289
    25

    Sun

  • DCA–LAS, 10/26/2026: From $219
    26

    Mon

  • DCA–LAS, 10/27/2026: From $199
    27

    Tue

  • DCA–LAS, 10/28/2026: From $199
    28

    Wed

  • DCA–LAS, 10/29/2026: From $169
    29

    Thu

    • Range$164-$508

    *Fares displayed have been collected within the last 24 hours and may no longer be available at time of booking. Additional fees and charges for optional products and services may apply. Modifying this information may result in a different fare. To find the most updated fare, please visit Southwest.com. Fares listed are Basic, which are subject to additional terms and conditions.

    Flight Details

    Departing from:
    Ronald Reagan National Airport
    Arriving at:
    McCarran International Airport
    Average flight time:
    5 hours 11 minutes
    Distance:
    2089 miles

    Route Information

    156† Weekly flights
    • 1‡ Nonstop flight per day Monday through Friday
    • 1‡ Nonstop flight on Saturday
    • 1‡ Nonstop flight on Sunday

    † Weekly flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025. Note: route may not operate every day of the week.

    ‡ Nonstop flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025.

    Questions we hear the most

    The average flight time from Washington, D.C. (Reagan National) to Las Vegas is 5 hours 11 minutes.
    There are 156 weekly flights from Washington, D.C. (Reagan National) to Las Vegas on Southwest Airlines.
    Yes, Southwest flies nonstop from Washington, D.C. (Reagan National) to Las Vegas once per day from Monday through Friday.
    Yes, Southwest flies nonstop from Washington, D.C. (Reagan National) to Las Vegas once per day on Saturdays and Sundays.
    To find the lowest fares by day and time to fly Washington, D.C. (Reagan National) to Las Vegas with Southwest, check out our Low Fare Calendar.
    You can rent a car at McCarran International Airport book yours with your flight.
    Yes! Flights from Washington, D.C. (Reagan National) to Las Vegas—or from here or there to anywhere—can be changed with no change fees. Fare difference may apply.
    Check the status of your upcoming Southwest flight.
    Check out the Southwest Airlines® Help Center for answers about everything Southwest.

    Explore Flights from Other Popular Origins

    Popular Flights from Washington D.C. Reagan National