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Cheap flights from Knoxville to Boston from $80

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 11/9. 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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0 bags

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Cheap round-trip flights

Allegiant Air Logo
8:30 am - 10:41 amTYS-BOS
2h 11mnonstop
Allegiant Air Logo
11:31 am - 2:00 pmBOS-TYS
2h 29mnonstop
$177Allegiant Air
Find Deal
Thu, Oct 30 - Sun, Nov 2
Allegiant Air Logo
6:00 am - 8:10 amTYS-BOS
2h 10mnonstop
Allegiant Air Logo
12:45 pm - 3:16 pmBOS-TYS
2h 31mnonstop
$178Allegiant Air
Find Deal
Thu, Dec 18 - Thu, Dec 25
Allegiant Air Logo
6:00 am - 8:10 amTYS-BOS
2h 10mnonstop
Allegiant Air Logo
9:00 am - 11:31 amBOS-TYS
2h 31mnonstop
$180Allegiant Air
Find Deal
Thu, Dec 18 - Sun, Dec 21
Multiple Airlines Logo
8:00 am - 10:13 amTYS-BOS
2h 13mnonstop
Multiple Airlines Logo
12:31 pm - 10:03 amBOS-TYS
21h 32m1 stop
$188Multiple Airlines
Find Deal
Tue, Oct 28 - Sat, Nov 1
Multiple Airlines Logo
7:30 am - 9:43 amTYS-BOS
2h 13mnonstop
Multiple Airlines Logo
3:00 pm - 3:42 pmBOS-TYS
24h 42m1 stop
$191Multiple Airlines
Find Deal
Sat, Nov 1 - Tue, Nov 4
Allegiant Air Logo
6:00 am - 8:10 amTYS-BOS
2h 10mnonstop
Allegiant Air Logo
9:00 am - 11:31 amBOS-TYS
2h 31mnonstop
$192Allegiant Air
Find Deal
Thu, Dec 18 - Sun, Dec 21
Multiple Airlines Logo
11:23 am - 11:59 pmTYS-BOS
12h 36m1 stop
Multiple Airlines Logo
10:33 am - 1:01 pmBOS-TYS
2h 28mnonstop
$197Multiple Airlines
Find Deal
Tue, Nov 4 - Sat, Nov 8
Allegiant Air Logo
8:00 am - 10:11 amTYS-BOS
2h 11mnonstop
Allegiant Air Logo
12:01 pm - 2:30 pmBOS-TYS
2h 29mnonstop
$198Allegiant Air
Find Deal
Sat, Oct 25 - Sun, Oct 26
Multiple Airlines Logo
5:38 pm - 12:40 amTYS-BOS
7h 02m1 stop
Multiple Airlines Logo
11:33 am - 2:05 pmBOS-TYS
2h 32mnonstop
$203Multiple Airlines
Find Deal
Thu, Nov 6 - Sun, Nov 9
Allegiant Air Logo
6:00 am - 8:10 amTYS-BOS
2h 10mnonstop
Allegiant Air Logo
12:45 pm - 3:16 pmBOS-TYS
2h 31mnonstop
$208Allegiant Air
Find Deal
Sun, Dec 21 - Thu, Dec 25

Allegiant Air flights from Knoxville to Boston

Our best Allegiant Air deals on Knoxville to Boston flight tickets
Allegiant Air
Oct 30
TYS8:30 amKnoxville McGhee Tyson
2h 11m
BOS10:41 amBoston Logan Intl
Nov 2
BOS11:31 amBoston Logan Intl
2h 29m
TYS2:00 pmKnoxville McGhee Tyson
$177
Find similar
Allegiant Air
Dec 18
TYS6:00 amKnoxville McGhee Tyson
2h 10m
BOS8:10 amBoston Logan Intl
Dec 25
BOS12:45 pmBoston Logan Intl
2h 31m
TYS3:16 pmKnoxville McGhee Tyson
$178
Find similar
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
$180
Find similar

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 September 25, 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

Thu 10/30

8:30 am-10:41 am

Nonstop2h 11m

Boston Logan Intl

Sun 11/2

11:31 am-2:00 pm

Nonstop2h 29m

$177

KnoxvilleBoston

TYS - BOS

TYSBOS

Knoxville McGhee Tyson

Thu 12/18

6:00 am-8:10 am

Nonstop2h 10m

Boston Logan Intl

Thu 12/25

12:45 pm-3:16 pm

Nonstop2h 31m

$178

KnoxvilleBoston

TYS - BOS

TYSBOS

Knoxville McGhee Tyson

Thu 12/18

6:00 am-8:10 am

Nonstop2h 10m

Boston Logan Intl

Sun 12/21

9:00 am-11:31 am

Nonstop2h 31m

$180

KnoxvilleBoston

TYS - BOS

TYSBOS

Knoxville McGhee Tyson

Tue 10/28

8:00 am-10:13 am

Nonstop2h 13m

Boston Logan Intl

Sat 11/1

12:31 pm-10:03 am

1 stop21h 32m

$188

KnoxvilleBoston

TYS - BOS

TYSBOS

Knoxville McGhee Tyson

Sat 11/1

7:30 am-9:43 am

Nonstop2h 13m

Boston Logan Intl

Tue 11/4

3:00 pm-3:42 pm

1 stop24h 42m

$191

KnoxvilleBoston

TYS - BOS

TYSBOS

Knoxville McGhee Tyson

Thu 12/18

6:00 am-8:10 am

Nonstop2h 10m

Boston Logan Intl

Sun 12/21

9:00 am-11:31 am

Nonstop2h 31m

$192

KnoxvilleBoston

TYS - BOS

TYSBOS

Knoxville McGhee Tyson

Tue 11/4

11:23 am-11:59 pm

1 stop12h 36m

Boston Logan Intl

Sat 11/8

10:33 am-1:01 pm

Nonstop2h 28m

$197

KnoxvilleBoston

TYS - BOS

TYSBOS

Knoxville McGhee Tyson

Sat 10/25

8:00 am-10:11 am

Nonstop2h 11m

Boston Logan Intl

Sun 10/26

12:01 pm-2:30 pm

Nonstop2h 29m

$198

KnoxvilleBoston

TYS - BOS

TYSBOS

Knoxville McGhee Tyson

Thu 11/6

5:38 pm-12:40 am

1 stop7h 02m

Boston Logan Intl

Sun 11/9

11:33 am-2:05 pm

Nonstop2h 32m

$203

KnoxvilleBoston

TYS - BOS

TYSBOS

Knoxville McGhee Tyson

Sun 12/21

6:00 am-8:10 am

Nonstop2h 10m

Boston Logan Intl

Thu 12/25

12:45 pm-3:16 pm

Nonstop2h 31m

$208

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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, March 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 $148. If you aren’t able to travel during the month of March, then book flights to Boston from Knoxville during June instead. Flights to Boston in June, while not as cheap as those in March, still average around $173.

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 $131. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Boston on Saturday is $190.

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 $177. 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 $273 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 $155 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 September 2025, prices for Knoxville to Boston flights are approximately 20% 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

$64

Fastest flight time

2h 10m

Direct flights

Mon, Wed, Thu, Fri and Sun

Airports in Boston

1 airport
The best one-way flight to Boston from Knoxville in the past 72 hours is $64. The best round-trip flight deal from Knoxville to Boston found on momondo in the last 72 hours is $207.
The fastest flight from Knoxville to Boston takes 2h 10m
Direct flights go from Knoxville to Boston on Monday, Wednesday, Thursday, Friday and Sunday. The only airline offering direct flights is Allegiant Air.
There is 1 airport near Boston: Boston Logan Intl (BOS)
Search flight deals

  • 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
699 reviews
Search Allegiant Air flights
DeltaPriceFrom $240Free CancellationRating
7.9
7,973 reviews
Search Delta flights
American AirlinesPriceFrom $248Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $328Free CancellationRating
7.4
8,928 reviews
Search United Airlines flights

  • Allegiant Air Flights From Knoxville to Boston

    Allegiant Air flight deals from Knoxville to Boston start from $89 round-trip. Over the 2 Allegiant Air flights for this route in a normal week, average airfare is usually $176 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
Brockton
Laconia
Falmouth
Concord
Everett
Wells
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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