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Cheap flights from Boston to Knoxville 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 Boston to Knoxville departing on 11/20. 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

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Allegiant Air Logo
9:00 am - 11:31 amBOS-TYS
2h 31mnonstop
Allegiant Air Logo
6:00 am - 8:10 amTYS-BOS
2h 10mnonstop
$149Allegiant Air
Find Deal
Sun, Dec 14 - Sun, Jan 4
Allegiant Air Logo
9:29 am - 12:12 pmBOS-TYS
2h 43mnonstop
Allegiant Air Logo
6:30 am - 8:39 amTYS-BOS
2h 09mnonstop
$155Allegiant Air
Find Deal
Thu, Feb 19 - Sun, Feb 22
Allegiant Air Logo
12:45 pm - 3:16 pmBOS-TYS
2h 31mnonstop
Allegiant Air Logo
6:00 am - 8:10 amTYS-BOS
2h 10mnonstop
$169Allegiant Air
Find Deal
Thu, Dec 25 - Sun, Dec 28
Multiple Airlines Logo
12:00 pm - 12:57 pmBOS-TYS
24h 57m2 stops
Multiple Airlines Logo
6:00 am - 8:12 amTYS-BOS
2h 12mnonstop
$172Multiple Airlines
Find Deal
Tue, Nov 18 - Thu, Nov 20
Multiple Airlines Logo
9:00 am - 11:31 amBOS-TYS
2h 31mnonstop
Multiple Airlines Logo
5:34 pm - 10:01 amTYS-BOS
16h 27m1 stop
$173Multiple Airlines
Find Deal
Thu, Dec 4 - Mon, Dec 8
Multiple Airlines Logo
9:00 am - 11:31 amBOS-TYS
2h 31mnonstop
Multiple Airlines Logo
1:39 pm - 1:04 amTYS-BOS
35h 25m2 stops
$174Multiple Airlines
Find Deal
Sun, Dec 14 - Thu, Jan 8
Allegiant Air Logo
9:00 am - 11:31 amBOS-TYS
2h 31mnonstop
Allegiant Air Logo
6:00 am - 8:10 amTYS-BOS
2h 10mnonstop
$175Allegiant Air
Find Deal
Thu, Dec 18 - Sat, Jan 3
Allegiant Air Logo
11:33 am - 2:05 pmBOS-TYS
2h 32mnonstop
Allegiant Air Logo
8:30 am - 10:43 amTYS-BOS
2h 13mnonstop
$176Allegiant Air
Find Deal
Sun, Nov 9 - Thu, Nov 13
Allegiant Air Logo
10:33 am - 1:01 pmBOS-TYS
2h 28mnonstop
Allegiant Air Logo
8:30 am - 10:43 amTYS-BOS
2h 13mnonstop
$178Allegiant Air
Find Deal
Tue, Nov 11 - Thu, Nov 13
Multiple Airlines Logo
6:16 am - 10:34 amBOS-TYS
28h 18m1 stop
Multiple Airlines Logo
7:30 am - 9:43 amTYS-BOS
2h 13mnonstop
$184Multiple Airlines
Find Deal
Mon, Nov 10 - Sat, Nov 15

Allegiant Air flights from Boston to Knoxville

Our best Allegiant Air deals on Boston to Knoxville flight tickets
Allegiant Air
Dec 14
BOS9:00 amBoston Logan Intl
2h 31m
TYS11:31 amKnoxville McGhee Tyson
Jan 4
TYS6:00 amKnoxville McGhee Tyson
2h 10m
BOS8:10 amBoston Logan Intl
$149
Find similar
Allegiant Air
Feb 19
BOS9:29 amBoston Logan Intl
2h 43m
TYS12:12 pmKnoxville McGhee Tyson
Feb 22
TYS6:30 amKnoxville McGhee Tyson
2h 09m
BOS8:39 amBoston Logan Intl
$155
Find similar
Allegiant Air
Nov 4
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
$158
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 October 29, 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

Sun 12/14

9:00 am-11:31 am

Nonstop2h 31m

Knoxville McGhee Tyson

Sun 1/4

6:00 am-8:10 am

Nonstop2h 10m

$149

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Thu 2/19

9:29 am-12:12 pm

Nonstop2h 43m

Knoxville McGhee Tyson

Sun 2/22

6:30 am-8:39 am

Nonstop2h 09m

$155

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Thu 12/25

12:45 pm-3:16 pm

Nonstop2h 31m

Knoxville McGhee Tyson

Sun 12/28

6:00 am-8:10 am

Nonstop2h 10m

$169

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Tue 11/18

12:00 pm-12:57 pm

2 stops24h 57m

Knoxville McGhee Tyson

Thu 11/20

6:00 am-8:12 am

Nonstop2h 12m

$172

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Thu 12/4

9:00 am-11:31 am

Nonstop2h 31m

Knoxville McGhee Tyson

Mon 12/8

5:34 pm-10:01 am

1 stop16h 27m

$173

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Sun 12/14

9:00 am-11:31 am

Nonstop2h 31m

Knoxville McGhee Tyson

Thu 1/8

1:39 pm-1:04 am

2 stops35h 25m

$174

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Thu 12/18

9:00 am-11:31 am

Nonstop2h 31m

Knoxville McGhee Tyson

Sat 1/3

6:00 am-8:10 am

Nonstop2h 10m

$175

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Sun 11/9

11:33 am-2:05 pm

Nonstop2h 32m

Knoxville McGhee Tyson

Thu 11/13

8:30 am-10:43 am

Nonstop2h 13m

$176

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Tue 11/11

10:33 am-1:01 pm

Nonstop2h 28m

Knoxville McGhee Tyson

Thu 11/13

8:30 am-10:43 am

Nonstop2h 13m

$178

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Mon 11/10

6:16 am-10:34 am

1 stop28h 18m

Knoxville McGhee Tyson

Sat 11/15

7:30 am-9:43 am

Nonstop2h 13m

$184

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 $153. 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 Tuesday, the most expensive travel day of the week, you can expect to see flight prices from Boston to Knoxville for around $220.

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 $195. 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 $301 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 $202 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 October 2025, prices for Boston to Knoxville flights are approximately 27% more expensive 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

$137

Fastest flight time

2h 28m

Direct flights

Mon, Tue, Wed, Fri and Sun

Airports in Knoxville

1 airport
The best one-way flight to Knoxville from Boston in the past 72 hours is $137. The best round-trip flight deal from Boston to Knoxville found on momondo in the last 72 hours is $184.
The fastest flight from Boston to Knoxville takes 2h 28m
Direct flights go from Boston to Knoxville on Monday, Tuesday, Wednesday, 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 28m.

  • 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
695 reviews
Search Allegiant Air flights
DeltaPriceFrom $215Free CancellationRating
7.9
7,992 reviews
Search Delta flights
American AirlinesPriceFrom $250Free CancellationRating
7.2
11,032 reviews
Search American Airlines flights
United AirlinesPriceFrom $318Free CancellationRating
7.4
8,999 reviews
Search United Airlines flights

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
Oak Ridge
Lenoir City
Newport
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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