Southwest® flights from Boise to Washington, D.C. (Reagan National) from $157

Promo Code

Low fares from Boise to Washington, D.C. (Reagan National)

$

Boise (BOI)to

Washington, D.C. (Reagan National) (DCA)
Depart: 11/18/2026

One-way

Basic

From
$157
Seen: 7 hrs ago

Boise (BOI)to

Washington, D.C. (Reagan National) (DCA)
Depart: 11/12/2026

One-way

Basic

From
$157
Seen: 5 hrs ago

Boise (BOI)to

Washington, D.C. (Reagan National) (DCA)
Depart: 08/31/2026

One-way

Basic

From
$187
Seen: 9 hrs ago

Boise (BOI)to

Washington, D.C. (Reagan National) (DCA)
Depart: 10/07/2026

One-way

Basic

From
$205
Seen: 7 hrs ago

Boise (BOI)to

Washington, D.C. (Reagan National) (DCA)
Depart: 11/18/2026

One-way

Choice

From
$212
Seen: 7 hrs ago

Boise (BOI)to

Washington, D.C. (Reagan National) (DCA)
Depart: 11/12/2026

One-way

Choice

From
$212
Seen: 5 hrs ago

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Explore flights from Boise to Washington, D.C. (Reagan National)

Aug 2026
From$187*
Seen: 9 hrs ago
One Way/Basic
Sep 2026
From$240*
Seen: 23 hrs ago
One Way/Basic
Oct 2026
From$205*
Seen: 7 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $187
cmp-daily-histogram-bars-legend-max-price-aria-label $609
Displaying fares for August-2026
  • BOI–DCA: cmp-view-offers-disclaimer. Find Offers
    24

    Mon

    AUG

  • BOI–DCA: cmp-view-offers-disclaimer. Find Offers
    25

    Tue

  • BOI–DCA, 08/26/2026: From $604
    26

    Wed

  • BOI–DCA, 08/27/2026: From $604
    27

    Thu

  • BOI–DCA, 08/28/2026: From $604
    28

    Fri

  • BOI–DCA, 08/29/2026: From $609
    29

    Sat

  • BOI–DCA, 08/30/2026: From $340
    30

    Sun

  • BOI–DCA, 08/31/2026: From $187
    31

    Mon

  • BOI–DCA: cmp-view-offers-disclaimer. Find Offers
    01

    Tue

    SEP

  • BOI–DCA: cmp-view-offers-disclaimer. Find Offers
    02

    Wed

  • BOI–DCA: cmp-view-offers-disclaimer. Find Offers
    03

    Thu

  • BOI–DCA, 09/04/2026: From $245
    04

    Fri

  • BOI–DCA: cmp-view-offers-disclaimer. Find Offers
    05

    Sat

  • BOI–DCA: cmp-view-offers-disclaimer. Find Offers
    06

    Sun

  • BOI–DCA: cmp-view-offers-disclaimer. Find Offers
    07

    Mon

  • BOI–DCA: cmp-view-offers-disclaimer. Find Offers
    08

    Tue

  • BOI–DCA, 09/09/2026: From $240
    09

    Wed

  • BOI–DCA: cmp-view-offers-disclaimer. Find Offers
    10

    Thu

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

    Fri

  • BOI–DCA: cmp-view-offers-disclaimer. Find Offers
    12

    Sat

  • BOI–DCA, 09/13/2026: From $515
    13

    Sun

  • BOI–DCA: cmp-view-offers-disclaimer. Find Offers
    14

    Mon

  • BOI–DCA: cmp-view-offers-disclaimer. Find Offers
    15

    Tue

  • BOI–DCA: cmp-view-offers-disclaimer. Find Offers
    16

    Wed

  • BOI–DCA, 09/17/2026: From $308
    17

    Thu

  • BOI–DCA: cmp-view-offers-disclaimer. Find Offers
    18

    Fri

  • BOI–DCA: cmp-view-offers-disclaimer. Find Offers
    19

    Sat

  • BOI–DCA: cmp-view-offers-disclaimer. Find Offers
    20

    Sun

  • BOI–DCA: cmp-view-offers-disclaimer. Find Offers
    21

    Mon

  • BOI–DCA: cmp-view-offers-disclaimer. Find Offers
    22

    Tue

  • BOI–DCA: cmp-view-offers-disclaimer. Find Offers
    23

    Wed

    • Range$187-$609

    *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:
    Boise Airport
    Arriving at:
    Ronald Reagan National Airport
    Distance:
    2049 miles

    Route Information

    47† Weekly flights

    † 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

    There are 47 weekly flights from Boise to Washington, D.C. (Reagan National) on Southwest Airlines.
    To find the lowest fares by day and time to fly Boise to Washington, D.C. (Reagan National) with Southwest, check out our Low Fare Calendar.
    You can rent a car at Ronald Reagan National Airport book yours with your flight.
    Yes! Flights from Boise to Washington, D.C. (Reagan National)—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.

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