American Airlines flights from Boston to Washington, D.C.

Recent searches for flights from Boston to Washington, D.C.

Aug 2026
From$151*
Updated: 2 hours ago
Round tripIEconomy
Sep 2026
From$117*
Updated: 18 hours ago
Round tripIEconomy
Oct 2026
From$151*
Updated: 14 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $151
cmp-daily-histogram-bars-legend-max-price-aria-label $947
Displaying fares for August-2026
  • BOS–DCA, 08/03/26 – 08/16/26: From $449
    03

    Mo

    AUG

  • BOS–DCA, 08/04/26 – 08/06/26: From $947
    04

    Tu

  • BOS–DCA, 08/05/26 – 08/09/26: From $533
    05

    We

  • BOS–DCA, 08/06/26 – 08/14/26: From $581
    06

    Th

  • BOS–DCA, 08/07/26 – 08/08/26: From $461
    07

    Fr

  • BOS–DCA, 08/08/26 – 08/09/26: From $386
    08

    Sa

  • BOS–WAS, 08/09/26 – 08/13/26: From $599
    09

    Su

  • BOS–DCA, 08/10/26 – 08/11/26: From $327
    10

    Mo

  • BOS–DCA, 08/11/26 – 08/12/26: From $327
    11

    Tu

  • BOS–WAS: cmp-view-offers-disclaimer. Find Offers
    12

    We

  • BOS–WAS: cmp-view-offers-disclaimer. Find Offers
    13

    Th

  • BOS–WAS: cmp-view-offers-disclaimer. Find Offers
    14

    Fr

  • BOS–DCA, 08/15/26 – 08/16/26: From $351
    15

    Sa

  • BOS–DCA, 08/16/26 – 08/17/26: From $473
    16

    Su

  • BOS–DCA, 08/17/26 – 08/18/26: From $267
    17

    Mo

  • BOS–DCA, 08/18/26 – 08/19/26: From $257
    18

    Tu

  • BOS–WAS: cmp-view-offers-disclaimer. Find Offers
    19

    We

  • BOS–DCA, 08/20/26 – 08/24/26: From $234
    20

    Th

  • BOS–DCA, 08/21/26 – 08/24/26: From $234
    21

    Fr

  • BOS–WAS: cmp-view-offers-disclaimer. Find Offers
    22

    Sa

  • BOS–DCA, 08/23/26 – 08/29/26: From $297
    23

    Su

  • BOS–WAS: cmp-view-offers-disclaimer. Find Offers
    24

    Mo

  • BOS–WAS: cmp-view-offers-disclaimer. Find Offers
    25

    Tu

  • BOS–WAS: cmp-view-offers-disclaimer. Find Offers
    26

    We

  • BOS–DCA, 08/27/26 – 08/31/26: From $151
    27

    Th

  • BOS–DCA, 08/28/26 – 12/20/26: From $213
    28

    Fr

  • BOS–WAS: cmp-view-offers-disclaimer. Find Offers
    29

    Sa

  • BOS–DCA, 08/30/26 – 09/02/26: From $217
    30

    Su

  • BOS–WAS: cmp-view-offers-disclaimer. Find Offers
    31

    Mo

  • BOS–WAS: cmp-view-offers-disclaimer. Find Offers
    01

    Tu

    SEP

  • BOS–DCA, 09/02/26 – 09/03/26: From $208
    02

    We

    • range$151-$947

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

    Find deals on Boston to Washington, D.C. flights

    $
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    Boston (BOS)to

    Washington, D.C. (WAS)
    09/11/26 - 09/22/26

    Round trip

    Economy

    from
    $134Fare subject to changes
    Updated: 1 hour ago

    Boston (BOS)to

    Washington, D.C. (WAS)
    09/11/26 - 09/13/26

    Round trip

    Economy

    from
    $172Fare subject to changes
    Updated: 16 minutes ago

    Boston (BOS)to

    Washington, D.C. (WAS)
    10/15/26 - 10/18/26

    Round trip

    Economy

    from
    $189Fare subject to changes
    Updated: 4 hours ago

    Boston (BOS)to

    Washington, D.C. (WAS)
    08/17/26 - 08/20/26

    Round trip

    Economy

    from
    $317Fare subject to changes
    Updated: 2 hours ago

    Boston (BOS)to

    Washington, D.C. (WAS)
    12/18/26 - 01/16/27

    Round trip

    Economy

    from
    $189Fare subject to changes
    Updated: 14 hours ago

    Boston (BOS)to

    Washington, D.C. (WAS)
    08/11/26 - 08/16/26

    Round trip

    Economy

    from
    $401Fare subject to changes
    Updated: 15 hours ago

    Boston (BOS)to

    Washington, D.C. (WAS)
    11/24/26 - 11/29/26

    Round trip

    Economy

    from
    $501Fare subject to changes
    Updated: 22 hours ago

    Boston (BOS)to

    Washington, D.C. (WAS)
    08/09/26 - 08/13/26

    Round trip

    Economy

    from
    $599Fare subject to changes
    Updated: 21 hours ago

    *Fares displayed have been collected within the last 24hrs and may no longer be available at time of booking. Some fares listed may include one or more connections that are Basic Economy, which class is subject to additional terms and conditions. Modifying this information may result in a different fare. To find the most updated fare, please visit aa.com. Additional baggage fees and charges for optional products and services may apply.

    Finding cheap flights from Boston to Washington, D.C.

    Looking for lower fares on your trip from Boston to Washington, D.C.? Here are a few ways to save.

    • Book early: Booking 1 to 3 months ahead can help you find lower fares
    • Be flexible with dates: Midweek travel, like Tuesdays and Wednesdays, can be more affordable
    • Travel during less busy periods: Flying outside peak travel times can help find lower fares and avoid crowds

    Earn up to $500 back on your next American Airlines flight plus, 30,000 bonus miles. Offers vary elsewhere. Opens another site in a new window that may not meet accessibility guidelines.

    Upgrade your flight with Main Cabin Extra

    Make your trip more comfortable with Main Cabin Extra. Enjoy benefits like:

    • Extra legroom: More space with seats at the front of the Main Cabin or in exit rows.
    • Early boarding: Preferred Group 5 boarding allows easier access to overhead bins.
    • Complimentary drinks: Enjoy beer, wine and spirits on flights with full beverage service.

    Discover how Main Cabin Extra can enhance your trip.

    American Airlines flights from Boston to Washington, D.C.