Southwest® flights from Denver to Boston from $119

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Low fares from Denver to Boston

$

Denver (DEN)to

Boston (BOS)
Depart: 10/21/2026

One-way

Basic

From
$119
Seen: 15 hrs ago

Denver (DEN)to

Boston (BOS)
Depart: 10/28/2026

One-way

Basic

From
$119
Seen: 6 hrs ago

Denver (DEN)to

Boston (BOS)
Depart: 12/17/2026

One-way

Basic

From
$119
Seen: 7 hrs ago

Denver (DEN)to

Boston (BOS)
Depart: 11/05/2026

One-way

Basic

From
$119
Seen: 8 hrs ago

Denver (DEN)to

Boston (BOS)
Depart: 11/03/2026

One-way

Basic

From
$119
Seen: 9 hrs ago

Denver (DEN)to

Boston (BOS)
Depart: 11/25/2026

One-way

Basic

From
$119
Seen: 2 minutes ago

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Explore flights from Denver to Boston

Sep 2026
From$144*
Seen: 20 hrs ago
One Way/Basic
Oct 2026
From$119*
Seen: 23 hrs ago
One Way/Basic
Nov 2026
From$119*
Seen: 9 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $119
cmp-daily-histogram-bars-legend-max-price-aria-label $329
Displaying fares for September-2026
  • DEN–BOS, 09/11/2026: From $318
    11

    Fri

    SEP

  • DEN–BOS, 09/12/2026: From $318
    12

    Sat

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

    Sun

  • DEN–BOS, 09/14/2026: From $318
    14

    Mon

  • DEN–BOS, 09/15/2026: From $318
    15

    Tue

  • DEN–BOS, 09/16/2026: From $284
    16

    Wed

  • DEN–BOS, 09/17/2026: From $294
    17

    Thu

  • DEN–BOS, 09/18/2026: From $284
    18

    Fri

  • DEN–BOS, 09/19/2026: From $284
    19

    Sat

  • DEN–BOS, 09/20/2026: From $284
    20

    Sun

  • DEN–BOS: cmp-view-offers-disclaimer. Find Offers
    21

    Mon

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

    Tue

  • DEN–BOS, 09/23/2026: From $144
    23

    Wed

  • DEN–BOS, 09/24/2026: From $329
    24

    Thu

  • DEN–BOS, 09/25/2026: From $189
    25

    Fri

  • DEN–BOS, 09/26/2026: From $239
    26

    Sat

  • DEN–BOS, 09/27/2026: From $249
    27

    Sun

  • DEN–BOS, 09/28/2026: From $174
    28

    Mon

  • DEN–BOS, 09/29/2026: From $144
    29

    Tue

  • DEN–BOS, 09/30/2026: From $169
    30

    Wed

  • DEN–BOS, 10/01/2026: From $279
    01

    Thu

    OCT

  • DEN–BOS, 10/02/2026: From $159
    02

    Fri

  • DEN–BOS, 10/03/2026: From $204
    03

    Sat

  • DEN–BOS, 10/04/2026: From $249
    04

    Sun

  • DEN–BOS, 10/05/2026: From $119
    05

    Mon

  • DEN–BOS, 10/06/2026: From $129
    06

    Tue

  • DEN–BOS, 10/07/2026: From $204
    07

    Wed

  • DEN–BOS, 10/08/2026: From $303
    08

    Thu

  • DEN–BOS, 10/09/2026: From $304
    09

    Fri

  • DEN–BOS, 10/10/2026: From $229
    10

    Sat

    • Range$119-$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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