Cheap flights from Knoxville to Boston from $55

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Knoxville to Boston departing on 12/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Allegiant Air Logo
6:00 am - 8:12 amTYS-BOS
2h 12mnonstop
Allegiant Air Logo
9:02 am - 11:34 amBOS-TYS
2h 32mnonstop
$163Allegiant Air
Find Deal
jue., nov. 20 - dom., nov. 23
Allegiant Air Logo
6:00 am - 8:10 amTYS-BOS
2h 10mnonstop
Allegiant Air Logo
9:00 am - 11:31 amBOS-TYS
2h 31mnonstop
$176Allegiant Air
Find Deal
jue., dic. 11 - jue., dic. 18
Allegiant Air Logo
6:00 am - 8:10 amTYS-BOS
2h 10mnonstop
Allegiant Air Logo
9:00 am - 11:31 amBOS-TYS
2h 31mnonstop
$184Allegiant Air
Find Deal
jue., dic. 18 - dom., dic. 21
Multiple Airlines Logo
6:00 am - 8:10 amTYS-BOS
2h 10mnonstop
Multiple Airlines Logo
8:11 pm - 9:49 pmBOS-TYS
25h 38m1 stop
$189Multiple Airlines
Find Deal
dom., dic. 7 - dom., dic. 7
Multiple Airlines Logo
12:43 pm - 11:56 pmTYS-BOS
11h 13m1 stop
Multiple Airlines Logo
9:00 am - 11:31 amBOS-TYS
2h 31mnonstop
$192Multiple Airlines
Find Deal
jue., dic. 4 - dom., dic. 7
Allegiant Air Logo
6:00 am - 8:12 amTYS-BOS
2h 12mnonstop
Allegiant Air Logo
11:53 am - 11:22 amBOS-TYS
23h 29m1 stop
$198Allegiant Air
Find Deal
jue., nov. 20 - dom., nov. 23
Multiple Airlines Logo
6:00 am - 8:10 amTYS-BOS
2h 10mnonstop
Multiple Airlines Logo
11:19 am - 12:03 pmBOS-TYS
24h 44m2 stops
$199Multiple Airlines
Find Deal
jue., dic. 4 - vie., dic. 5
Multiple Airlines Logo
12:01 pm - 1:14 amTYS-BOS
13h 13m2 stops
Multiple Airlines Logo
9:00 am - 11:31 amBOS-TYS
2h 31mnonstop
$201Multiple Airlines
Find Deal
mié., dic. 31 - dom., ene. 4
Multiple Airlines Logo
6:00 am - 8:10 amTYS-BOS
2h 10mnonstop
Multiple Airlines Logo
6:00 am - 5:53 pmBOS-TYS
35h 53m2 stops
$202Multiple Airlines
Find Deal
sáb., ene. 3 - sáb., ene. 10
Multiple Airlines Logo
6:00 am - 8:10 amTYS-BOS
2h 10mnonstop
Multiple Airlines Logo
3:43 pm - 5:28 pmBOS-TYS
25h 45m1 stop
$203Multiple Airlines
Find Deal
sáb., ene. 3 - dom., ene. 11

American Airlines flights from Knoxville to Boston

Our best American Airlines deals on Knoxville to Boston flight tickets
American Airlines
Feb 20
TYS11:16 amKnoxville McGhee Tyson
7h 24m
1 stop
BOS6:40 pmBoston Logan Intl
Feb 23
BOS11:07 amBoston Logan Intl
4h 43m
1 stop
TYS3:50 pmKnoxville McGhee Tyson
American Airlines
Nov 26
TYS5:51 pmKnoxville McGhee Tyson
5h 05m
1 stop
BOS10:56 pmBoston Logan Intl
Dec 2
BOS6:59 amBoston Logan Intl
8h 49m
1 stop
TYS3:48 pmKnoxville McGhee Tyson
American Airlines
Nov 26
TYS7:35 amKnoxville McGhee Tyson
4h 47m
1 stop
BOS12:22 pmBoston Logan Intl
Nov 28
BOS6:59 amBoston Logan Intl
8h 49m
1 stop
TYS3:48 pmKnoxville McGhee Tyson

Allegiant Air flights from Knoxville to Boston

Our best Allegiant Air deals on Knoxville to Boston flight tickets
Allegiant Air
Nov 20
TYS6:00 amKnoxville McGhee Tyson
2h 12m
BOS8:12 amBoston Logan Intl
Nov 23
BOS9:02 amBoston Logan Intl
2h 32m
TYS11:34 amKnoxville McGhee Tyson
Allegiant Air
Dec 11
TYS6:00 amKnoxville McGhee Tyson
2h 10m
BOS8:10 amBoston Logan Intl
Dec 18
BOS9:00 amBoston Logan Intl
2h 31m
TYS11:31 amKnoxville McGhee Tyson
Allegiant Air
Dec 18
TYS6:00 amKnoxville McGhee Tyson
2h 10m
BOS8:10 amBoston Logan Intl
Dec 21
BOS9:00 amBoston Logan Intl
2h 31m
TYS11:31 amKnoxville McGhee Tyson

momondo Fare Finder

 
Customize your flight search to find flights from Knoxville to Boston that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated noviembre 13, 2025.
Use the filters below to find and compare flights from Knoxville to Boston that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

KnoxvilleBoston

TYS - BOS

TYSBOS

Knoxville McGhee Tyson

jue. 11/20

6:00 am-8:12 am

Nonstop2h 12m

Boston Logan Intl

dom. 11/23

9:02 am-11:34 am

Nonstop2h 32m

$163

KnoxvilleBoston

TYS - BOS

TYSBOS

Knoxville McGhee Tyson

jue. 12/11

6:00 am-8:10 am

Nonstop2h 10m

Boston Logan Intl

jue. 12/18

9:00 am-11:31 am

Nonstop2h 31m

$176

KnoxvilleBoston

TYS - BOS

TYSBOS

Knoxville McGhee Tyson

jue. 12/18

6:00 am-8:10 am

Nonstop2h 10m

Boston Logan Intl

dom. 12/21

9:00 am-11:31 am

Nonstop2h 31m

$184

KnoxvilleBoston

TYS - BOS

TYSBOS

Knoxville McGhee Tyson

dom. 12/7

6:00 am-8:10 am

Nonstop2h 10m

Boston Logan Intl

dom. 12/7

8:11 pm-9:49 pm

1 stop25h 38m

$189

KnoxvilleBoston

TYS - BOS

TYSBOS

Knoxville McGhee Tyson

jue. 12/4

12:43 pm-11:56 pm

1 stop11h 13m

Boston Logan Intl

dom. 12/7

9:00 am-11:31 am

Nonstop2h 31m

$192

KnoxvilleBoston

TYS - BOS

TYSBOS

Knoxville McGhee Tyson

jue. 11/20

6:00 am-8:12 am

Nonstop2h 12m

Boston Logan Intl

dom. 11/23

11:53 am-11:22 am

1 stop23h 29m

$198

KnoxvilleBoston

TYS - BOS

TYSBOS

Knoxville McGhee Tyson

jue. 12/4

6:00 am-8:10 am

Nonstop2h 10m

Boston Logan Intl

vie. 12/5

11:19 am-12:03 pm

2 stops24h 44m

$199

KnoxvilleBoston

TYS - BOS

TYSBOS

Knoxville McGhee Tyson

mié. 12/31

12:01 pm-1:14 am

2 stops13h 13m

Boston Logan Intl

dom. 1/4

9:00 am-11:31 am

Nonstop2h 31m

$201

KnoxvilleBoston

TYS - BOS

TYSBOS

Knoxville McGhee Tyson

sáb. 1/3

6:00 am-8:10 am

Nonstop2h 10m

Boston Logan Intl

sáb. 1/10

6:00 am-5:53 pm

2 stops35h 53m

$202

KnoxvilleBoston

TYS - BOS

TYSBOS

Knoxville McGhee Tyson

sáb. 1/3

6:00 am-8:10 am

Nonstop2h 10m

Boston Logan Intl

dom. 1/11

3:43 pm-5:28 pm

1 stop25h 45m

$203

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Boston from

How to get the cheapest flight ticket from Knoxville to Boston

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Boston?

In general, June is the cheapest month to fly from Knoxville to Boston. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $173. If you aren’t able to travel during the month of June, then book flights to Boston from Knoxville during May instead. Flights to Boston in May, while not as cheap as those in June, still average around $177.

What is the cheapest day to depart on your flight to Boston?

The cheapest day to depart from Knoxville to Boston is on a Tuesday when prices can be found for as low as $128. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Boston on Sunday is $194.

What is the cheapest time of day to depart on your flight to Boston?

According to our data, the cheapest time of day to fly to Boston is in the morning. momondo users have found flights departing from Knoxville to Boston in the morning for as low as $178. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. At noon is when there is more demand to fly to Boston, so prices are often more expensive at around $524 per ticket.

What is the cheapest Knoxville McGhee Tyson to Boston Logan Intl flight route?

Fly from Knoxville McGhee Tyson to Boston Logan Intl for the best Knoxville McGhee Tyson - Boston Logan Intl flight prices

How far in advance should I book a flight to Boston?

You are more likely to see cheaper flights to Boston from Knoxville when booking weeks ahead of your departure date. In general, you can expect to find flights to Boston for around $255 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Boston from Knoxville for as low as $140 on momondo.

What cabin class options are available on Knoxville McGhee Tyson to Boston Logan Intl flights?

There is only 1 cabin class available to choose from on Knoxville McGhee Tyson to Boston Logan Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Knoxville to Boston flight prices changed over time?

As of November 2025, prices for Knoxville to Boston flights are approximately 11% cheaper when compared to flights at the same time last year.

When to book flights from Knoxville to Boston

Are you open to changing your travel dates? Check out the ideal times to fly from Knoxville to Boston according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Knoxville to Boston (TYS to BOS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Knoxville to Boston

Best Price Found

$134

Fastest flight time

2h 10m

Direct flights

Mon, Tue, Wed, Fri and Sun

Airports in Boston

1 airport
The best one-way flight to Boston from Knoxville in the past 72 hours is $134. The best round-trip flight deal from Knoxville to Boston found on momondo in the last 72 hours is $161.
The fastest flight from Knoxville to Boston takes 2h 10m
Direct flights go from Knoxville to Boston on Monday, Tuesday, Wednesday, Friday and Sunday. The only airline offering direct flights is Allegiant Air.
There is 1 airport near Boston: Boston Logan Intl (BOS)
  • How far is Knoxville McGhee Tyson to Boston Logan Intl by plane?

    The straight-line distance from Knoxville McGhee Tyson to Boston Logan Intl is 816.8 mi. In terms of flight time, this usually takes a little over 2h 10m.

  • When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to Boston Logan Intl Airport?

    Prices for flights from Knoxville McGhee Tyson Airport to Boston Logan Intl Airport were last updated today.

  • How many operators does momondo search for flights from Knoxville McGhee Tyson Airport to Boston Logan Intl Airport?

  • How old do you have to be to fly from Knoxville McGhee Tyson Airport to Boston Logan Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Knoxville McGhee Tyson Airport to Boston Logan Intl Airport.

  • What documentation or ID do you need to fly to Boston Logan Intl Airport?

    The necessary travel and health documents for your Boston Logan Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Knoxville to Boston?

  • What is the most popular airline from Knoxville to Boston?

Best airlines flying from Knoxville to Boston

Compare and see reviews for airlines that fly from Knoxville to Boston with momondo
Airline
Rating
Free Cancellation
Price
Allegiant AirPriceFrom $89Free CancellationRating
7.2
698 reviews
Search Allegiant Air flights
United AirlinesPriceFrom $198Free CancellationRating
7.4
9,017 reviews
Search United Airlines flights
DeltaPriceFrom $230Free CancellationRating
7.9
8,007 reviews
Search Delta flights
American AirlinesPriceFrom $248Free CancellationRating
7.2
11,051 reviews
Search American Airlines flights
  • Allegiant Air Flights From Knoxville to Boston

    Allegiant Air flight deals from Knoxville to Boston start from $89 round-trip. Over the 1 Allegiant Air flight for this route in a normal week, average airfare is usually $178 round-trip - but some users have found much cheaper deals with momondo.

Traveling to a place near Boston?

Book flights to Boston if you plan to visit one of these locations
Hampton Beach
Salem
Ogunquit
Old Orchard Beach
Hampton
York Beach
Plymouth
Kennebunkport
Cambridge
South Yarmouth
Narragansett
Nashua
Gloucester
Falmouth
Laconia
Brockton
Concord
Everett
Sturbridge
Chatham

Why use momondo?

Why should I use momondo to find a flight deal from Knoxville to Boston?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Boston from Knoxville.

Can I find flights from Knoxville to Boston with flexible booking policies on momondo?

momondo does allow users to show only those flights to Boston from Knoxville which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Knoxville to Boston?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Boston from Knoxville.

I’m not ready to book a flight from Knoxville to Boston right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Knoxville to Boston flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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1 adult
sáb. 12/13
sáb. 12/20

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