Southwest® flights from Boston to Denver from $120

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Low fares from Boston to Denver

$

Boston (BOS)to

Denver (DEN)
Depart: 01/16/2027

One-way

Basic

From
$120
Seen: 20 hrs ago

Boston (BOS)to

Denver (DEN)
Depart: 12/02/2026

One-way

Basic

From
$120
Seen: 5 hrs ago

Boston (BOS)to

Denver (DEN)
Depart: 01/12/2027

One-way

Basic

From
$120
Seen: 12 hrs ago

Boston (BOS)to

Denver (DEN)
Depart: 02/03/2027

One-way

Basic

From
$120
Seen: 3 hrs ago

Boston (BOS)to

Denver (DEN)
Depart: 12/15/2026

One-way

Basic

From
$120
Seen: 2 hrs ago

Boston (BOS)to

Denver (DEN)
Depart: 01/20/2027

One-way

Basic

From
$120
Seen: 1 hour ago

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Explore flights from Boston to Denver

Nov 2026
From$168*
Seen: 7 hrs ago
One Way/Basic
Dec 2026
From$120*
Seen: 2 hrs ago
One Way/Basic
Jan 2027
From$120*
Seen: 21 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $120
cmp-daily-histogram-bars-legend-max-price-aria-label $370
Displaying fares for November-2026
  • BOS–DEN, 11/10/2026: From $363
    10

    Tue

    NOV

  • BOS–DEN, 11/11/2026: From $370
    11

    Wed

  • BOS–DEN, 11/12/2026: From $363
    12

    Thu

  • BOS–DEN, 11/13/2026: From $363
    13

    Fri

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

    Sat

  • BOS–DEN, 11/15/2026: From $363
    15

    Sun

  • BOS–DEN: cmp-view-offers-disclaimer. Find Offers
    16

    Mon

  • BOS–DEN, 11/17/2026: From $249
    17

    Tue

  • BOS–DEN: cmp-view-offers-disclaimer. Find Offers
    18

    Wed

  • BOS–DEN, 11/19/2026: From $299
    19

    Thu

  • BOS–DEN, 11/20/2026: From $299
    20

    Fri

  • BOS–DEN, 11/21/2026: From $299
    21

    Sat

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

    Sun

  • BOS–DEN: cmp-view-offers-disclaimer. Find Offers
    23

    Mon

  • BOS–DEN, 11/24/2026: From $189
    24

    Tue

  • BOS–DEN, 11/25/2026: From $239
    25

    Wed

  • BOS–DEN, 11/26/2026: From $168
    26

    Thu

  • BOS–DEN, 11/27/2026: From $214
    27

    Fri

  • BOS–DEN, 11/28/2026: From $334
    28

    Sat

  • BOS–DEN, 11/29/2026: From $363
    29

    Sun

  • BOS–DEN, 11/30/2026: From $298
    30

    Mon

  • BOS–DEN, 12/01/2026: From $193
    01

    Tue

    DEC

  • BOS–DEN, 12/02/2026: From $120
    02

    Wed

  • BOS–DEN, 12/03/2026: From $135
    03

    Thu

  • BOS–DEN: cmp-view-offers-disclaimer. Find Offers
    04

    Fri

  • BOS–DEN, 12/05/2026: From $145
    05

    Sat

  • BOS–DEN, 12/06/2026: From $154
    06

    Sun

  • BOS–DEN, 12/07/2026: From $135
    07

    Mon

  • BOS–DEN: cmp-view-offers-disclaimer. Find Offers
    08

    Tue

  • BOS–DEN: cmp-view-offers-disclaimer. Find Offers
    09

    Wed

    • Range$120-$370

    *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:
    Logan International Airport
    Arriving at:
    Denver International Airport
    Average flight time:
    4 hours 41 minutes
    Distance:
    1754 miles

    Questions we hear the most

    The average flight time from Boston to Denver is 4 hours 41 minutes.
    There are 156 weekly flights from Boston to Denver on Southwest Airlines.
    Yes, Southwest flies nonstop from Boston to Denver 3 times per day from Monday through Friday.
    Yes, Southwest flies nonstop from Boston to Denver 2 times per day on Saturdays and 3 times per day on Sundays.
    To find the lowest fares by day and time to fly Boston to Denver with Southwest, check out our Low Fare Calendar.
    You can rent a car at Denver International Airport book yours with your flight.
    Yes! Flights from Boston to Denver—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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