Southwest® flights from Denver to Boston from $109

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Low fares from Denver to Boston

$

Denver (DEN)to

Boston (BOS)
Depart: 10/26/2026

One-way

Basic

From
$109
Seen: 20 hrs ago

Denver (DEN)to

Boston (BOS)
Depart: 10/28/2026

One-way

Basic

From
$109
Seen: 9 hrs ago

Denver (DEN)to

Boston (BOS)
Depart: 10/21/2026

One-way

Basic

From
$109
Seen: 8 hrs ago

Denver (DEN)to

Boston (BOS)
Depart: 10/19/2026

One-way

Basic

From
$109
Seen: 11 hrs ago

Denver (DEN)to

Boston (BOS)
Depart: 10/13/2026

One-way

Basic

From
$109
Seen: 18 hrs ago

Denver (DEN)to

Boston (BOS)
Depart: 11/23/2026

One-way

Basic

From
$109
Seen: 22 hrs ago

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Explore flights from Denver to Boston

Aug 2026
From$274*
Seen: 12 hrs ago
One Way/Basic
Sep 2026
From$118*
Seen: 16 hrs ago
One Way/Basic
Oct 2026
From$109*
Seen: 21 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $118
cmp-daily-histogram-bars-legend-max-price-aria-label $329
Displaying fares for August-2026
  • DEN–BOS, 08/21/2026: From $308
    21

    Fri

    AUG

  • DEN–BOS, 08/22/2026: From $308
    22

    Sat

  • DEN–BOS, 08/23/2026: From $308
    23

    Sun

  • DEN–BOS, 08/24/2026: From $308
    24

    Mon

  • DEN–BOS, 08/25/2026: From $308
    25

    Tue

  • DEN–BOS, 08/26/2026: From $308
    26

    Wed

  • DEN–BOS, 08/27/2026: From $274
    27

    Thu

  • DEN–BOS: cmp-view-offers-disclaimer. Find Offers
    28

    Fri

  • DEN–BOS, 08/29/2026: From $274
    29

    Sat

  • DEN–BOS, 08/30/2026: From $274
    30

    Sun

  • DEN–BOS, 08/31/2026: From $274
    31

    Mon

  • DEN–BOS, 09/01/2026: From $274
    01

    Tue

    SEP

  • DEN–BOS, 09/02/2026: From $274
    02

    Wed

  • DEN–BOS: cmp-view-offers-disclaimer. Find Offers
    03

    Thu

  • DEN–BOS, 09/04/2026: From $149
    04

    Fri

  • DEN–BOS, 09/05/2026: From $136
    05

    Sat

  • DEN–BOS, 09/06/2026: From $159
    06

    Sun

  • DEN–BOS, 09/07/2026: From $329
    07

    Mon

  • DEN–BOS, 09/08/2026: From $189
    08

    Tue

  • DEN–BOS, 09/09/2026: From $124
    09

    Wed

  • DEN–BOS, 09/10/2026: From $136
    10

    Thu

  • DEN–BOS, 09/11/2026: From $118
    11

    Fri

  • DEN–BOS, 09/12/2026: From $119
    12

    Sat

  • DEN–BOS, 09/13/2026: From $189
    13

    Sun

  • DEN–BOS, 09/14/2026: From $118
    14

    Mon

  • DEN–BOS, 09/15/2026: From $119
    15

    Tue

  • DEN–BOS, 09/16/2026: From $119
    16

    Wed

  • DEN–BOS, 09/17/2026: From $214
    17

    Thu

  • DEN–BOS, 09/18/2026: From $159
    18

    Fri

  • DEN–BOS, 09/19/2026: From $119
    19

    Sat

  • DEN–BOS, 09/20/2026: From $189
    20

    Sun

    • Range$118-$329

    *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:
    Denver International Airport
    Arriving at:
    Logan International Airport
    Average flight time:
    3 hours 51 minutes
    Distance:
    1754 miles

    Route Information

    155† Weekly flights
    • 3‡ Nonstop flights per day Monday through Friday
    • 2‡ Nonstop flights on Saturday
    • 3‡ Nonstop flights 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 Denver to Boston is 3 hours 51 minutes.
    There are 155 weekly flights from Denver to Boston on Southwest Airlines.
    Yes, Southwest flies nonstop from Denver to Boston 3 times per day from Monday through Friday.
    Yes, Southwest flies nonstop from Denver to Boston 2 times per day on Saturdays and 3 times per day on Sundays.
    To find the lowest fares by day and time to fly Denver to Boston with Southwest, check out our Low Fare Calendar.
    You can rent a car at Logan International Airport book yours with your flight.
    Yes! Flights from Denver to Boston—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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