Southwest® flights from Denver to Boston from $109

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Low fares from Denver to Boston

$

Denver (DEN)to

Boston (BOS)
Depart: 11/11/2026

One-way

Basic

From
$109
Seen: 17 hrs ago

Denver (DEN)to

Boston (BOS)
Depart: 11/18/2026

One-way

Basic

From
$109
Seen: 9 hrs ago

Denver (DEN)to

Boston (BOS)
Depart: 10/27/2026

One-way

Basic

From
$109
Seen: 22 hrs ago

Denver (DEN)to

Boston (BOS)
Depart: 11/17/2026

One-way

Basic

From
$109
Seen: 8 hrs ago

Denver (DEN)to

Boston (BOS)
Depart: 10/20/2026

One-way

Basic

From
$109
Seen: 21 hrs ago

Denver (DEN)to

Boston (BOS)
Depart: 10/28/2026

One-way

Basic

From
$109
Seen: 53 minutes ago

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Explore flights from Denver to Boston

Sep 2026
From$348*
Seen: 15 hrs ago
One Way/Basic
Oct 2026
From$109*
Seen: 21 hrs ago
One Way/Basic
Nov 2026
From$109*
Seen: 8 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $109
cmp-daily-histogram-bars-legend-max-price-aria-label $369
Displaying fares for September-2026
  • DEN–BOS, 09/30/2026: From $348
    30

    Wed

    SEP

  • DEN–BOS, 10/01/2026: From $338
    01

    Thu

  • DEN–BOS, 10/02/2026: From $338
    02

    Fri

  • DEN–BOS, 10/03/2026: From $348
    03

    Sat

  • DEN–BOS, 10/04/2026: From $348
    04

    Sun

  • DEN–BOS, 10/05/2026: From $338
    05

    Mon

  • DEN–BOS, 10/06/2026: From $304
    06

    Tue

  • DEN–BOS, 10/07/2026: From $314
    07

    Wed

  • DEN–BOS, 10/08/2026: From $369
    08

    Thu

  • DEN–BOS, 10/09/2026: From $353
    09

    Fri

  • DEN–BOS: cmp-view-offers-disclaimer. Find Offers
    10

    Sat

  • DEN–BOS, 10/11/2026: From $304
    11

    Sun

  • DEN–BOS, 10/12/2026: From $304
    12

    Mon

  • DEN–BOS, 10/13/2026: From $135
    13

    Tue

  • DEN–BOS, 10/14/2026: From $169
    14

    Wed

  • DEN–BOS, 10/15/2026: From $249
    15

    Thu

  • DEN–BOS, 10/16/2026: From $166
    16

    Fri

  • DEN–BOS: cmp-view-offers-disclaimer. Find Offers
    17

    Sat

  • DEN–BOS, 10/18/2026: From $189
    18

    Sun

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

    Mon

  • DEN–BOS, 10/20/2026: From $109
    20

    Tue

  • DEN–BOS, 10/21/2026: From $135
    21

    Wed

  • DEN–BOS, 10/22/2026: From $208
    22

    Thu

  • DEN–BOS, 10/23/2026: From $158
    23

    Fri

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

    Sat

  • DEN–BOS, 10/25/2026: From $189
    25

    Sun

  • DEN–BOS, 10/26/2026: From $115
    26

    Mon

  • DEN–BOS, 10/27/2026: From $109
    27

    Tue

  • DEN–BOS, 10/28/2026: From $109
    28

    Wed

  • DEN–BOS, 10/29/2026: From $115
    29

    Thu

    • Range$109-$369

    *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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