Southwest® flights from Knoxville to Boston from $114

Promo Code

Low fares from Knoxville to Boston

$

Knoxville (TYS)to

Boston (BOS)
Depart: 11/04/2026

One-way

Basic

From
$114

Low fares from Knoxville to Boston

$

Knoxville (TYS)to

Boston (BOS)
Depart: 11/04/2026

One-way

Basic

From
$114
Seen: 23 hrs ago

Knoxville (TYS)to

Boston (BOS)
Depart: 10/21/2026

One-way

Basic

From
$126
Seen: 3 hrs ago

Knoxville (TYS)to

Boston (BOS)
Depart: 10/30/2026

One-way

Basic

From
$143
Seen: 8 hrs ago

Knoxville (TYS)to

Boston (BOS)
Depart: 11/04/2026

One-way

Choice

From
$154
Seen: 23 hrs ago

Knoxville (TYS)to

Boston (BOS)
Depart: 10/21/2026

One-way

Choice

From
$168
Seen: 3 hrs ago

Knoxville (TYS)to

Boston (BOS)
Depart: 10/30/2026

One-way

Choice

From
$183
Seen: 8 hrs ago

Looking for more low-fare flights?

Check out the Low Fare Calendar to find a fare that works for you. Just choose the month you want to depart and return, and we’ll show you the best fares available.

Find low fares

Explore flights from Knoxville to Boston

Sep 2026
From$365*
Seen: 21 hrs ago
One Way/Basic
Oct 2026
From$126*
Seen: 3 hrs ago
One Way/Basic
Nov 2026
From$114*
Seen: 23 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $196
Displaying fares for September-2026
  • TYS–BOS, 09/18/2026: From $365
    18

    Fri

    SEP

  • TYS–BOS, 09/19/2026: From $365
    19

    Sat

  • TYS–BOS: cmp-view-offers-disclaimer. Find Offers
    20

    Sun

  • TYS–BOS, 09/21/2026: From $365
    21

    Mon

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

    Tue

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

    Wed

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

    Thu

  • TYS–BOS: cmp-view-offers-disclaimer. Find Offers
    25

    Fri

  • TYS–BOS: cmp-view-offers-disclaimer. Find Offers
    26

    Sat

  • TYS–BOS: cmp-view-offers-disclaimer. Find Offers
    27

    Sun

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

    Mon

  • TYS–BOS: cmp-view-offers-disclaimer. Find Offers
    29

    Tue

  • TYS–BOS: cmp-view-offers-disclaimer. Find Offers
    30

    Wed

  • TYS–BOS: cmp-view-offers-disclaimer. Find Offers
    01

    Thu

    OCT

  • TYS–BOS: cmp-view-offers-disclaimer. Find Offers
    02

    Fri

  • TYS–BOS, 10/03/2026: From $401
    03

    Sat

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

    Sun

  • TYS–BOS: cmp-view-offers-disclaimer. Find Offers
    05

    Mon

  • TYS–BOS: cmp-view-offers-disclaimer. Find Offers
    06

    Tue

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

    Wed

  • TYS–BOS, 10/08/2026: From $294
    08

    Thu

  • TYS–BOS, 10/09/2026: From $315
    09

    Fri

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

    Sat

  • TYS–BOS: cmp-view-offers-disclaimer. Find Offers
    11

    Sun

  • TYS–BOS: cmp-view-offers-disclaimer. Find Offers
    12

    Mon

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

    Tue

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

    Wed

  • TYS–BOS: cmp-view-offers-disclaimer. Find Offers
    15

    Thu

  • TYS–BOS, 10/16/2026: From $196
    16

    Fri

  • TYS–BOS, 10/17/2026: From $219
    17

    Sat

    • Range$196-$401

    *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:
    Mc Ghee Tyson Airport
    Arriving at:
    Logan International Airport
    Distance:
    830 miles

    Route Information

    53† Weekly flights

    † 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

    There are 53 weekly flights from Knoxville to Boston on Southwest Airlines.
    To find the lowest fares by day and time to fly Knoxville 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 Knoxville 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.

    Explore Flights from Other Popular Origins

    Popular Flights from Knoxville