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Cheap flights from Boston to Knoxville from $68

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Knoxville departing on 9/30. 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 Boston to Knoxville

Cheap round-trip flights

Allegiant Air Logo
10:33 am - 1:01 pmBOS-TYS
2h 28mnonstop
Allegiant Air Logo
7:30 am - 9:43 amTYS-BOS
2h 13mnonstop
$177Allegiant Air
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Sat, Nov 8 - Tue, Nov 11
Allegiant Air Logo
11:33 am - 2:05 pmBOS-TYS
2h 32mnonstop
Allegiant Air Logo
8:30 am - 10:43 amTYS-BOS
2h 13mnonstop
$178Allegiant Air
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Thu, Nov 6 - Sun, Nov 9
Logo
3:00 pm - 3:36 pmBOS-TYS
24h 36m1 stop
Logo
7:30 am - 9:43 amTYS-BOS
2h 13mnonstop
$180
Find Deal
Tue, Oct 28 - Sat, Nov 1
Logo
6:10 am - 3:41 pmBOS-TYS
9h 31m1 stop
Logo
9:00 am - 11:11 amTYS-BOS
2h 11mnonstop
$181
Find Deal
Sat, Sep 27 - Wed, Oct 1
American Airlines Logo
9:00 am - 3:54 pmBOS-TYS
6h 54m1 stop
American Airlines Logo
6:23 pm - 10:43 pmTYS-BOS
4h 20m1 stop
$183American Airlines
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Tue, Dec 9 - Tue, Dec 16
Delta Logo
5:34 am - 11:04 amBOS-TYS
5h 30m1 stop
Delta Logo
6:10 am - 1:23 pmTYS-BOS
7h 13m1 stop
$217Delta
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Sat, Nov 8 - Tue, Nov 11
American Airlines Logo
6:00 am - 12:56 pmBOS-TYS
6h 56m1 stop
American Airlines Logo
6:14 pm - 10:50 pmTYS-BOS
4h 36m1 stop
$235American Airlines
Find Deal
Tue, Oct 21 - Fri, Oct 24
Delta Logo
5:29 am - 12:03 pmBOS-TYS
6h 34m1 stop
Delta Logo
8:05 pm - 1:22 amTYS-BOS
5h 17m1 stop
$252Delta
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Tue, Nov 11 - Fri, Nov 14
United Airlines Logo
5:30 am - 10:48 amBOS-TYS
5h 18m1 stop
United Airlines Logo
8:26 am - 5:27 pmTYS-BOS
9h 01m2 stops
$258United Airlines
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Tue, Nov 11 - Sat, Nov 15
United Airlines Logo
5:30 am - 10:48 amBOS-TYS
5h 18m1 stop
United Airlines Logo
10:50 am - 6:48 pmTYS-BOS
7h 58m2 stops
$259United Airlines
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Tue, Dec 9 - Tue, Dec 16

Allegiant Air flights from Boston to Knoxville

Our best Allegiant Air deals on Boston to Knoxville flight tickets
Allegiant Air
Nov 8
BOS10:33 amBoston Logan Intl
2h 28m
TYS1:01 pmKnoxville McGhee Tyson
Nov 11
TYS7:30 amKnoxville McGhee Tyson
2h 13m
BOS9:43 amBoston Logan Intl
$177
Find similar
Allegiant Air
Nov 6
BOS11:33 amBoston Logan Intl
2h 32m
TYS2:05 pmKnoxville McGhee Tyson
Nov 9
TYS8:30 amKnoxville McGhee Tyson
2h 13m
BOS10:43 amBoston Logan Intl
$178
Find similar
Allegiant Air
Oct 25
BOS11:01 amBoston Logan Intl
2h 29m
TYS1:30 pmKnoxville McGhee Tyson
Oct 30
TYS8:30 amKnoxville McGhee Tyson
2h 11m
BOS10:41 amBoston Logan Intl
$184
Find similar

Delta flights from Boston to Knoxville

Our best Delta deals on Boston to Knoxville flight tickets
Delta
Nov 8
BOS5:34 amBoston Logan Intl
5h 30m
1 stop
TYS11:04 amKnoxville McGhee Tyson
Nov 11
TYS6:10 amKnoxville McGhee Tyson
7h 13m
1 stop
BOS1:23 pmBoston Logan Intl
$217
Find similar
Delta
Nov 11
BOS5:29 amBoston Logan Intl
6h 34m
1 stop
TYS12:03 pmKnoxville McGhee Tyson
Nov 14
TYS8:05 pmKnoxville McGhee Tyson
5h 17m
1 stop
BOS1:22 amBoston Logan Intl
$252
Find similar
Delta
Sep 16
BOS11:00 amBoston Logan Intl
5h 55m
1 stop
TYS4:55 pmKnoxville McGhee Tyson
Sep 20
TYS6:08 pmKnoxville McGhee Tyson
7h 10m
1 stop
BOS1:18 amBoston Logan Intl
$345
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Boston to Knoxville 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 14, 2025.
Use the filters below to find and compare flights from Boston to Knoxville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Sat 11/8

10:33 am-1:01 pm

Nonstop2h 28m

Knoxville McGhee Tyson

Tue 11/11

7:30 am-9:43 am

Nonstop2h 13m

$177

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Thu 11/6

11:33 am-2:05 pm

Nonstop2h 32m

Knoxville McGhee Tyson

Sun 11/9

8:30 am-10:43 am

Nonstop2h 13m

$178

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Tue 10/28

3:00 pm-3:36 pm

1 stop24h 36m

Knoxville McGhee Tyson

Sat 11/1

7:30 am-9:43 am

Nonstop2h 13m

$180

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Sat 9/27

6:10 am-3:41 pm

1 stop9h 31m

Knoxville McGhee Tyson

Wed 10/1

9:00 am-11:11 am

Nonstop2h 11m

$181

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Tue 12/9

9:00 am-3:54 pm

1 stop6h 54m

Knoxville McGhee Tyson

Tue 12/16

6:23 pm-10:43 pm

1 stop4h 20m

$183

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Sat 11/8

5:34 am-11:04 am

1 stop5h 30m

Knoxville McGhee Tyson

Tue 11/11

6:10 am-1:23 pm

1 stop7h 13m

$217

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Tue 10/21

6:00 am-12:56 pm

1 stop6h 56m

Knoxville McGhee Tyson

Fri 10/24

6:14 pm-10:50 pm

1 stop4h 36m

$235

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Tue 11/11

5:29 am-12:03 pm

1 stop6h 34m

Knoxville McGhee Tyson

Fri 11/14

8:05 pm-1:22 am

1 stop5h 17m

$252

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Tue 11/11

5:30 am-10:48 am

1 stop5h 18m

Knoxville McGhee Tyson

Sat 11/15

8:26 am-5:27 pm

2 stops9h 01m

$258

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Tue 12/9

5:30 am-10:48 am

1 stop5h 18m

Knoxville McGhee Tyson

Tue 12/16

10:50 am-6:48 pm

2 stops7h 58m

$259

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 Knoxville from

How to get the cheapest flight ticket from Boston to Knoxville

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 Knoxville?

The month of February is, on average, the cheapest month to fly to Knoxville from Boston, with most prices found around $159. If you aren’t able to travel during the month of February, then book flights to Knoxville from Boston during July instead. Flights to Knoxville in July, while not as cheap as those in February, still average around $188.

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

The cheapest day to depart from Boston to Knoxville is on a Wednesday. Travelers who choose to depart for Knoxville on a Wednesday will often find tickets for as low as $127. When flying out on a Monday, the most expensive travel day of the week, you can expect to see flight prices from Boston to Knoxville for around $251.

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

In the morning is the cheapest time of day to fly from Boston to Knoxville when you can find flight prices for as low as $192. Flying to Knoxville in the morning is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Knoxville is in the evening when prices are around $604.

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

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

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

You are more likely to see cheaper flights to Knoxville from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Knoxville for around $304 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Knoxville from Boston for as low as $210 on momondo.

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

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

How have Boston to Knoxville flight prices changed over time?

As of September 2025, prices for Boston to Knoxville flights are approximately 5% cheaper when compared to flights at the same time last year.

When to book flights from Boston to Knoxville

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

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

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

Best Price Found

$79

Fastest flight time

2h 22m

Direct flights

Mon, Tue, Wed, Thu, Fri and Sun

Airports in Knoxville

1 airport
The best one-way flight to Knoxville from Boston in the past 72 hours is $79. The best round-trip flight deal from Boston to Knoxville found on momondo in the last 72 hours is $180.
The fastest flight from Boston to Knoxville takes 2h 22m
Direct flights go from Boston to Knoxville on Monday, Tuesday, Wednesday, Thursday, Friday and Sunday. The only airline offering direct flights is Allegiant Air.
There is 1 airport near Knoxville: Knoxville McGhee Tyson (TYS)
Search flight deals

  • How far is Boston Logan Intl to Knoxville McGhee Tyson by plane?

    The distance between Boston Logan Intl and Knoxville McGhee Tyson is about 816.8 mi. By plane, this route typically takes 2h 22m.

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

    Prices for flights from Boston Logan Intl Airport to Knoxville McGhee Tyson Airport refresh daily.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boston Logan Intl Airport to Knoxville McGhee Tyson Airport.

  • What documentation or ID do you need to fly to Knoxville McGhee Tyson Airport?

    The travel and health documents you'll need for your trip to Knoxville McGhee Tyson Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Knoxville McGhee Tyson Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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

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

Best airlines flying from Boston to Knoxville

Compare and see reviews for airlines that fly from Boston to Knoxville with momondo
Airline
Rating
Free Cancellation
Price
Allegiant AirPriceFrom $89Free CancellationRating
7.2
699 reviews
Search Allegiant Air flights
DeltaPriceFrom $215Free CancellationRating
7.9
7,956 reviews
Search Delta flights
American AirlinesPriceFrom $256Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $318Free CancellationRating
7.4
8,931 reviews
Search United Airlines flights

  • Allegiant Air Flights From Boston to Knoxville

    The lowest priced Allegiant Air flight from Boston to Knoxville from the last 72 hours was $89. Generally, Allegiant Air has 2 flights on this route every week with an average price of $191. Allegiant Air is rated 7.2/10 by our users.

Traveling to a place near Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
Pigeon Forge
Gatlinburg
Cherokee
Bryson City
Morristown
Corbin
Crossville
Maryville
Murphy
Alcoa
Newport
Lenoir City
Oak Ridge
Kodak
Dandridge
Clinton
Jefferson City
Rockford

Why use momondo?

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

Finding the right flight to Knoxville from Boston is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Knoxville quick and easy, saving you time and money.

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

Yes. momondo allows you to filter the results for Boston to Knoxville flights to just show those with flexible booking policies.

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

Once all potential Boston to Knoxville flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Yes. momondo can track prices for Boston to Knoxville flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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