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Cheap flights from Boston to Knoxville from $70

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 1/3. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Boston to Knoxville

Cheap round-trip flights

Enter your travel dates to find the best prices.
Allegiant Air Logo
12:45 pm - 3:16 pm
BOS
-
TYS
2h 31mnonstop
Allegiant Air Logo
6:00 am - 8:10 am
TYS
-
BOS
2h 10mnonstop
$149Allegiant Air
Thu, Jan 1 - Sun, Jan 4
Allegiant Air Logo
12:45 pm - 3:16 pm
BOS
-
TYS
2h 31mnonstop
Allegiant Air Logo
6:00 am - 8:10 am
TYS
-
BOS
2h 10mnonstop
$166Allegiant Air
Thu, Jan 1 - Sun, Jan 4
Allegiant Air Logo
12:45 pm - 3:16 pm
BOS
-
TYS
2h 31mnonstop
Allegiant Air Logo
6:00 am - 8:10 am
TYS
-
BOS
2h 10mnonstop
$167Allegiant Air
Thu, Jan 1 - Sun, Jan 4
Allegiant Air Logo
9:00 am - 11:31 am
BOS
-
TYS
2h 31mnonstop
Allegiant Air Logo
6:00 am - 8:10 am
TYS
-
BOS
2h 10mnonstop
$172Allegiant Air
Sun, Dec 14 - Thu, Dec 18
Allegiant Air Logo
9:00 am - 11:31 am
BOS
-
TYS
2h 31mnonstop
Allegiant Air Logo
6:00 am - 8:10 am
TYS
-
BOS
2h 10mnonstop
$177Allegiant Air
Sun, Dec 14 - Thu, Dec 18
Multiple Airlines Logo
6:22 pm - 10:08 am
BOS
-
TYS
15h 46m1 stop
Multiple Airlines Logo
6:30 am - 8:39 am
TYS
-
BOS
2h 09mnonstop
$184Multiple Airlines
Tue, Feb 17 - Thu, Feb 19
Multiple Airlines Logo
3:43 pm - 10:10 am
BOS
-
TYS
18h 27m1 stop
Multiple Airlines Logo
6:18 pm - 2:38 pm
TYS
-
BOS
20h 20m1 stop
$187Multiple Airlines
Sun, Jan 11 - Mon, Jan 12
Multiple Airlines Logo
5:27 pm - 8:39 am
BOS
-
TYS
15h 12m1 stop
Multiple Airlines Logo
6:18 pm - 2:38 pm
TYS
-
BOS
20h 20m1 stop
$188Multiple Airlines
Sat, Jan 10 - Mon, Jan 12
Multiple Airlines Logo
9:29 am - 12:12 pm
BOS
-
TYS
2h 43mnonstop
Multiple Airlines Logo
7:22 pm - 12:05 am
TYS
-
BOS
28h 43m2 stops
$190Multiple Airlines
Thu, Feb 12 - Mon, Feb 16
Multiple Airlines Logo
6:00 am - 5:53 pm
BOS
-
TYS
35h 53m2 stops
Multiple Airlines Logo
12:30 pm - 11:19 pm
TYS
-
BOS
10h 49m1 stop
$191Multiple Airlines
Wed, Jan 7 - Sat, Jan 17

Allegiant Air flights from Boston to Knoxville

Our best Allegiant Air deals on Boston to Knoxville flight tickets
Allegiant Air
Jan 1
BOS12:45 pmBoston Logan Intl
2h 31m
TYS3:16 pmKnoxville McGhee Tyson
Jan 4
TYS6:00 amKnoxville McGhee Tyson
2h 10m
BOS8:10 amBoston Logan Intl
$149
Find similar
Allegiant Air
Jan 1
BOS12:45 pmBoston Logan Intl
2h 31m
TYS3:16 pmKnoxville McGhee Tyson
Jan 4
TYS6:00 amKnoxville McGhee Tyson
2h 10m
BOS8:10 amBoston Logan Intl
$166
Find similar
Allegiant Air
Jan 1
BOS12:45 pmBoston Logan Intl
2h 31m
TYS3:16 pmKnoxville McGhee Tyson
Jan 4
TYS6:00 amKnoxville McGhee Tyson
2h 10m
BOS8:10 amBoston Logan Intl
$167
Find similar

Delta flights from Boston to Knoxville

Our best Delta deals on Boston to Knoxville flight tickets
Delta
Jan 10
BOS12:55 pmBoston Logan Intl
6h 29m
1 stop
TYS7:24 pmKnoxville McGhee Tyson
Jan 13
TYS11:54 amKnoxville McGhee Tyson
5h 28m
1 stop
BOS5:22 pmBoston Logan Intl
$231
Find similar
Delta
Dec 13
BOS7:05 amBoston Logan Intl
5h 19m
1 stop
TYS12:24 pmKnoxville McGhee Tyson
Dec 17
TYS12:27 pmKnoxville McGhee Tyson
5h 26m
1 stop
BOS5:53 pmBoston Logan Intl
$385
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 December 11, 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

Thu 1/1

12:45 pm-3:16 pm

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 1/1

12:45 pm-3:16 pm

Nonstop2h 31m

Knoxville McGhee Tyson

Sun 1/4

6:00 am-8:10 am

Nonstop2h 10m

$166

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Thu 1/1

12:45 pm-3:16 pm

Nonstop2h 31m

Knoxville McGhee Tyson

Sun 1/4

6:00 am-8:10 am

Nonstop2h 10m

$167

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Sun 12/14

9:00 am-11:31 am

Nonstop2h 31m

Knoxville McGhee Tyson

Thu 12/18

6:00 am-8:10 am

Nonstop2h 10m

$172

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Sun 12/14

9:00 am-11:31 am

Nonstop2h 31m

Knoxville McGhee Tyson

Thu 12/18

6:00 am-8:10 am

Nonstop2h 10m

$177

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Tue 2/17

6:22 pm-10:08 am

1 stop15h 46m

Knoxville McGhee Tyson

Thu 2/19

6:30 am-8:39 am

Nonstop2h 09m

$184

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Sun 1/11

3:43 pm-10:10 am

1 stop18h 27m

Knoxville McGhee Tyson

Mon 1/12

6:18 pm-2:38 pm

1 stop20h 20m

$187

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Sat 1/10

5:27 pm-8:39 am

1 stop15h 12m

Knoxville McGhee Tyson

Mon 1/12

6:18 pm-2:38 pm

1 stop20h 20m

$188

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Thu 2/12

9:29 am-12:12 pm

Nonstop2h 43m

Knoxville McGhee Tyson

Mon 2/16

7:22 pm-12:05 am

2 stops28h 43m

$190

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Wed 1/7

6:00 am-5:53 pm

2 stops35h 53m

Knoxville McGhee Tyson

Sat 1/17

12:30 pm-11:19 pm

1 stop10h 49m

$191

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 $149. 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 $187.

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 $210.

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 $295 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 $214 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 December 2025, prices for Boston to Knoxville flights are approximately 9% 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

$119

Fastest flight time

2h 29m

Direct flights

Mon, Wed, Fri and Sun

Airports in Knoxville

1 airport
The best one-way flight to Knoxville from Boston in the past 72 hours is $119. The best round-trip flight deal from Boston to Knoxville found on momondo in the last 72 hours is $155.
The fastest flight from Boston to Knoxville takes 2h 29m
Direct flights go from Boston to Knoxville on Monday, Wednesday, Friday and Sunday. The only airline offering direct flights is Allegiant Air.
There is 1 airport in Knoxville. From Boston there are direct flights to 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 29m.

  • 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 $230Free CancellationRating
7.9
8,007 reviews
Search Delta flights
American AirlinesPriceFrom $248Free CancellationRating
7.2
11,050 reviews
Search American Airlines flights
United AirlinesPriceFrom $273Free CancellationRating
7.4
9,095 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 1 flight 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
Maryville
Crossville
Murphy
Alcoa
Oak Ridge
Lenoir City
Newport
Kodak
Dandridge
Jefferson City
Clinton
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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