Southwest® flights from Boston to Denver from $119

Promo Code

Low fares from Boston to Denver

$

Boston (BOS)to

Denver (DEN)
Depart: 10/29/2026

One-way

Basic

From
$119
Seen: 21 hrs ago

Boston (BOS)to

Denver (DEN)
Depart: 10/06/2026

One-way

Basic

From
$119
Seen: 17 hrs ago

Boston (BOS)to

Denver (DEN)
Depart: 10/03/2026

One-way

Basic

From
$119
Seen: 13 hrs ago

Boston (BOS)to

Denver (DEN)
Depart: 10/28/2026

One-way

Basic

From
$119
Seen: 15 hrs ago

Boston (BOS)to

Denver (DEN)
Depart: 10/27/2026

One-way

Basic

From
$119
Seen: 5 hrs ago

Boston (BOS)to

Denver (DEN)
Depart: 10/31/2026

One-way

Basic

From
$119
Seen: 19 hrs ago

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Explore flights from Boston to Denver

Sep 2026
From$144*
Seen: 12 hrs ago
One Way/Basic
Oct 2026
From$119*
Seen: 21 hrs ago
One Way/Basic
Nov 2026
From$119*
Seen: 17 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $119
cmp-daily-histogram-bars-legend-max-price-aria-label $339
Displaying fares for September-2026
  • BOS–DEN, 09/10/2026: From $318
    10

    Thu

    SEP

  • BOS–DEN, 09/11/2026: From $318
    11

    Fri

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

    Sat

  • BOS–DEN, 09/13/2026: From $333
    13

    Sun

  • BOS–DEN, 09/14/2026: From $328
    14

    Mon

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

    Tue

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

    Wed

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

    Thu

  • BOS–DEN, 09/18/2026: From $299
    18

    Fri

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

    Sat

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

    Sun

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

    Mon

  • BOS–DEN, 09/22/2026: From $284
    22

    Tue

  • BOS–DEN, 09/23/2026: From $154
    23

    Wed

  • BOS–DEN, 09/24/2026: From $219
    24

    Thu

  • BOS–DEN, 09/25/2026: From $229
    25

    Fri

  • BOS–DEN, 09/26/2026: From $146
    26

    Sat

  • BOS–DEN, 09/27/2026: From $318
    27

    Sun

  • BOS–DEN, 09/28/2026: From $333
    28

    Mon

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

    Tue

  • BOS–DEN, 09/30/2026: From $179
    30

    Wed

  • BOS–DEN, 10/01/2026: From $159
    01

    Thu

    OCT

  • BOS–DEN, 10/02/2026: From $128
    02

    Fri

  • BOS–DEN, 10/03/2026: From $119
    03

    Sat

  • BOS–DEN, 10/04/2026: From $224
    04

    Sun

  • BOS–DEN, 10/05/2026: From $179
    05

    Mon

  • BOS–DEN, 10/06/2026: From $119
    06

    Tue

  • BOS–DEN: cmp-view-offers-disclaimer. Find Offers
    07

    Wed

  • BOS–DEN, 10/08/2026: From $259
    08

    Thu

  • BOS–DEN, 10/09/2026: From $339
    09

    Fri

    • Range$119-$339

    *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

    Route Information

    156† 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 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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