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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 9/4. 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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Find the cheapest flights from Knoxville to Boston (TYS-BOS)

Cheap round-trip flights

Allegiant Air Logo
9:00 am - 11:17 amTYS-BOS
2h 17mnonstop
Allegiant Air Logo
10:33 am - 12:55 pmBOS-TYS
2h 22mnonstop
$134Allegiant Air
Find Deal
Sun, Sep 7 - Tue, Sep 9
Allegiant Air Logo
9:00 am - 11:11 amTYS-BOS
2h 11mnonstop
Allegiant Air Logo
11:01 am - 1:30 pmBOS-TYS
2h 29mnonstop
$158Allegiant Air
Find Deal
Thu, Oct 2 - Tue, Oct 7
Allegiant Air Logo
8:00 am - 10:11 amTYS-BOS
2h 11mnonstop
Allegiant Air Logo
12:01 pm - 2:30 pmBOS-TYS
2h 29mnonstop
$159Allegiant Air
Find Deal
Tue, Oct 7 - Wed, Oct 8
Allegiant Air Logo
8:30 am - 10:41 amTYS-BOS
2h 11mnonstop
Allegiant Air Logo
10:33 am - 1:01 pmBOS-TYS
2h 28mnonstop
$160Allegiant Air
Find Deal
Thu, Oct 30 - Sat, Nov 1
Logo
9:00 am - 11:14 amTYS-BOS
2h 14mnonstop
Logo
6:05 am - 3:41 pmBOS-TYS
9h 36m1 stop
$166
Find Deal
Tue, Sep 2 - Wed, Sep 3
Logo
4:31 pm - 11:57 pmTYS-BOS
7h 26m1 stop
Logo
10:33 am - 12:55 pmBOS-TYS
2h 22mnonstop
$167
Find Deal
Sat, Sep 6 - Tue, Sep 9
American Airlines Logo
6:00 am - 11:59 amTYS-BOS
5h 59m1 stop
American Airlines Logo
5:54 am - 10:29 amBOS-TYS
4h 35m1 stop
$249American Airlines
Find Deal
Thu, Aug 28 - Mon, Sep 1
American Airlines Logo
10:57 am - 3:21 pmTYS-BOS
4h 24m1 stop
American Airlines Logo
5:40 am - 9:52 amBOS-TYS
4h 12m1 stop
$274American Airlines
Find Deal
Thu, Oct 30 - Sun, Nov 2
United Airlines Logo
5:45 am - 1:24 pmTYS-BOS
7h 39m2 stops
United Airlines Logo
5:30 am - 10:28 amBOS-TYS
4h 58m1 stop
$276United Airlines
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Fri, Sep 12 - Sun, Sep 14
Delta Logo
6:10 am - 1:16 pmTYS-BOS
7h 06m1 stop
Delta Logo
3:00 pm - 8:36 pmBOS-TYS
5h 36m1 stop
$284Delta
Find Deal
Thu, Aug 14 - Mon, Aug 18

Allegiant Air flights from Knoxville to Boston

Our best Allegiant Air deals on Knoxville to Boston flight tickets
Allegiant Air
Sep 7
TYS9:00 amKnoxville McGhee Tyson
2h 17m
BOS11:17 amBoston Logan Intl
Sep 9
BOS10:33 amBoston Logan Intl
2h 22m
TYS12:55 pmKnoxville McGhee Tyson
$134
Find similar
Allegiant Air
Oct 2
TYS9:00 amKnoxville McGhee Tyson
2h 11m
BOS11:11 amBoston Logan Intl
Oct 7
BOS11:01 amBoston Logan Intl
2h 29m
TYS1:30 pmKnoxville McGhee Tyson
$158
Find similar
Allegiant Air
Oct 7
TYS8:00 amKnoxville McGhee Tyson
2h 11m
BOS10:11 amBoston Logan Intl
Oct 8
BOS12:01 pmBoston Logan Intl
2h 29m
TYS2:30 pmKnoxville McGhee Tyson
$159
Find similar

American Airlines flights from Knoxville to Boston

Our best American Airlines deals on Knoxville to Boston flight tickets
American Airlines
Aug 28
TYS6:00 amKnoxville McGhee Tyson
5h 59m
1 stop
BOS11:59 amBoston Logan Intl
Sep 1
BOS5:54 amBoston Logan Intl
4h 35m
1 stop
TYS10:29 amKnoxville McGhee Tyson
$249
Find similar
American Airlines
Oct 30
TYS10:57 amKnoxville McGhee Tyson
4h 24m
1 stop
BOS3:21 pmBoston Logan Intl
Nov 2
BOS5:40 amBoston Logan Intl
4h 12m
1 stop
TYS9:52 amKnoxville McGhee Tyson
$274
Find similar
American Airlines
Aug 14
TYS10:55 amKnoxville McGhee Tyson
4h 12m
1 stop
BOS3:07 pmBoston Logan Intl
Aug 17
BOS5:54 amBoston Logan Intl
4h 36m
1 stop
TYS10:30 amKnoxville McGhee Tyson
$405
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 August 4, 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

Sun 9/7

9:00 am-11:17 am

Nonstop2h 17m

Boston Logan Intl

Tue 9/9

10:33 am-12:55 pm

Nonstop2h 22m

$134

KnoxvilleBoston

TYS - BOS

TYSBOS

Knoxville McGhee Tyson

Thu 10/2

9:00 am-11:11 am

Nonstop2h 11m

Boston Logan Intl

Tue 10/7

11:01 am-1:30 pm

Nonstop2h 29m

$158

KnoxvilleBoston

TYS - BOS

TYSBOS

Knoxville McGhee Tyson

Tue 10/7

8:00 am-10:11 am

Nonstop2h 11m

Boston Logan Intl

Wed 10/8

12:01 pm-2:30 pm

Nonstop2h 29m

$159

KnoxvilleBoston

TYS - BOS

TYSBOS

Knoxville McGhee Tyson

Thu 10/30

8:30 am-10:41 am

Nonstop2h 11m

Boston Logan Intl

Sat 11/1

10:33 am-1:01 pm

Nonstop2h 28m

$160

KnoxvilleBoston

TYS - BOS

TYSBOS

Knoxville McGhee Tyson

Tue 9/2

9:00 am-11:14 am

Nonstop2h 14m

Boston Logan Intl

Wed 9/3

6:05 am-3:41 pm

1 stop9h 36m

$166

KnoxvilleBoston

TYS - BOS

TYSBOS

Knoxville McGhee Tyson

Sat 9/6

4:31 pm-11:57 pm

1 stop7h 26m

Boston Logan Intl

Tue 9/9

10:33 am-12:55 pm

Nonstop2h 22m

$167

KnoxvilleBoston

TYS - BOS

TYSBOS

Knoxville McGhee Tyson

Thu 8/28

6:00 am-11:59 am

1 stop5h 59m

Boston Logan Intl

Mon 9/1

5:54 am-10:29 am

1 stop4h 35m

$249

KnoxvilleBoston

TYS - BOS

TYSBOS

Knoxville McGhee Tyson

Thu 10/30

10:57 am-3:21 pm

1 stop4h 24m

Boston Logan Intl

Sun 11/2

5:40 am-9:52 am

1 stop4h 12m

$274

KnoxvilleBoston

TYS - BOS

TYSBOS

Knoxville McGhee Tyson

Fri 9/12

5:45 am-1:24 pm

2 stops7h 39m

Boston Logan Intl

Sun 9/14

5:30 am-10:28 am

1 stop4h 58m

$276

KnoxvilleBoston

TYS - BOS

TYSBOS

Knoxville McGhee Tyson

Thu 8/14

6:10 am-1:16 pm

1 stop7h 06m

Boston Logan Intl

Mon 8/18

3:00 pm-8:36 pm

1 stop5h 36m

$284

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, 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 Wednesday when prices can be found for as low as $119. 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 $184.

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 $173. 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 $281 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 $182 on momondo.

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

There are 1 cabin classes 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 August 2025, prices for Knoxville to Boston flights are approximately 31% more expensive 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

$55

Fastest flight time

2h 11m

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 $55. The best round-trip flight deal from Knoxville to Boston found on momondo in the last 72 hours is $134.
The fastest flight from Knoxville to Boston takes 2h 11m
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 11m.

  • 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
702 reviews
Search Allegiant Air flights
DeltaPriceFrom $240Free CancellationRating
8.0
7,987 reviews
Search Delta flights
American AirlinesPriceFrom $248Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $252Free CancellationRating
7.4
8,912 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 1 Allegiant Air flight for this route in a normal week, average airfare is usually $172 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
Hampton
Old Orchard Beach
York Beach
Plymouth
Kennebunkport
Nashua
Cambridge
Narragansett
Laconia
Brockton
South Yarmouth
Gloucester
Concord
Everett
Wells
Falmouth
Sturbridge

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.

An easier way to manage your Boston trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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