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Cheap flights from Boston to Knoxville from $51

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 5/30. 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

Enter your travel dates to find the best prices.
Allegiant Air Logo
9:45 am - 12:14 pm
BOS
-
TYS
2h 29mnonstop
Allegiant Air Logo
6:45 am - 8:55 am
TYS
-
BOS
2h 10mnonstop
$139Allegiant Air
Sat, May 23 - Sat, May 30
Allegiant Air Logo
9:53 am - 12:16 pm
BOS
-
TYS
2h 23mnonstop
Allegiant Air Logo
7:30 am - 9:48 am
TYS
-
BOS
2h 18mnonstop
$141Allegiant Air
Sat, Jun 6 - Sun, Jun 7
Allegiant Air Logo
9:45 am - 12:14 pm
BOS
-
TYS
2h 29mnonstop
Allegiant Air Logo
6:45 am - 8:55 am
TYS
-
BOS
2h 10mnonstop
$149Allegiant Air
Sat, May 23 - Sat, May 30
Allegiant Air Logo
9:45 am - 12:14 pm
BOS
-
TYS
2h 29mnonstop
Allegiant Air Logo
6:45 am - 8:55 am
TYS
-
BOS
2h 10mnonstop
$151Allegiant Air
Sat, May 23 - Sat, May 30
Allegiant Air Logo
10:54 am - 9:38 pm
BOS
-
TYS
10h 44m
1 stop
Allegiant Air Logo
6:45 am - 9:03 am
TYS
-
BOS
2h 18mnonstop
$153Allegiant Air
Sat, Jun 6 - Sat, Jun 13
Allegiant Air Logo
10:54 am - 9:38 pm
BOS
-
TYS
10h 44m
1 stop
Allegiant Air Logo
6:45 am - 9:03 am
TYS
-
BOS
2h 18mnonstop
$154Allegiant Air
Sat, Jun 6 - Sat, Jun 13
Allegiant Air Logo
9:45 am - 12:14 pm
BOS
-
TYS
2h 29mnonstop
Allegiant Air Logo
6:45 am - 8:55 am
TYS
-
BOS
2h 10mnonstop
$157Allegiant Air
Sat, May 23 - Sat, May 30
Allegiant Air Logo
10:54 am - 9:38 pm
BOS
-
TYS
10h 44m
1 stop
Allegiant Air Logo
6:45 am - 9:03 am
TYS
-
BOS
2h 18mnonstop
$159Allegiant Air
Sat, Jun 6 - Sat, Jun 13
Allegiant Air Logo
10:38 am - 1:01 pm
BOS
-
TYS
2h 23mnonstop
Allegiant Air Logo
6:45 am - 9:03 am
TYS
-
BOS
2h 18mnonstop
$160Allegiant Air
Sun, Jun 7 - Sat, Jun 13
Allegiant Air Logo
10:54 am - 9:38 pm
BOS
-
TYS
10h 44m
1 stop
Allegiant Air Logo
6:45 am - 9:03 am
TYS
-
BOS
2h 18mnonstop
$163Allegiant Air
Sat, Jun 6 - Sat, Jun 13

Southwest flights from Boston to Knoxville

Our best Southwest deals on Boston to Knoxville flight tickets
Southwest
May 24
BOS10:10 amBoston Logan Intl
8h 35m
2 stops
TYS6:45 pmKnoxville McGhee Tyson
Jun 1
TYS6:45 pmKnoxville McGhee Tyson
4h 30m
1 stop
BOS11:15 pmBoston Logan Intl
$373
Southwest
May 26
BOS12:55 pmBoston Logan Intl
7h 55m
2 stops
TYS8:50 pmKnoxville McGhee Tyson
May 29
TYS6:45 pmKnoxville McGhee Tyson
4h 30m
1 stop
BOS11:15 pmBoston Logan Intl
$387
Southwest
May 19
BOS10:45 amBoston Logan Intl
8h 55m
2 stops
TYS7:40 pmKnoxville McGhee Tyson
May 28
TYS6:35 amKnoxville McGhee Tyson
8h 35m
1 stop
BOS3:10 pmBoston Logan Intl
$393

Allegiant Air flights from Boston to Knoxville

Our best Allegiant Air deals on Boston to Knoxville flight tickets
Allegiant Air
Sep 12
BOS12:35 pmBoston Logan Intl
2h 26m
TYS3:01 pmKnoxville McGhee Tyson
Sep 13
TYS7:10 amKnoxville McGhee Tyson
2h 15m
BOS9:25 amBoston Logan Intl
$139
Allegiant Air
Jun 6
BOS9:53 amBoston Logan Intl
2h 23m
TYS12:16 pmKnoxville McGhee Tyson
Jun 7
TYS7:30 amKnoxville McGhee Tyson
2h 18m
BOS9:48 amBoston Logan Intl
$141
Allegiant Air
May 23
BOS9:45 amBoston Logan Intl
2h 29m
TYS12:14 pmKnoxville McGhee Tyson
May 30
TYS6:45 amKnoxville McGhee Tyson
2h 10m
BOS8:55 amBoston Logan Intl
$149

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 May 14, 2026.
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

Cheapest round-trip
Quickest round-trip

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Sat 5/23

9:45 am-12:14 pm

Nonstop2h 29m

Knoxville McGhee Tyson

Sat 5/30

6:45 am-8:55 am

Nonstop2h 10m

$139

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Sat 6/6

9:53 am-12:16 pm

Nonstop2h 23m

Knoxville McGhee Tyson

Sun 6/7

7:30 am-9:48 am

Nonstop2h 18m

$141

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Sat 5/23

9:45 am-12:14 pm

Nonstop2h 29m

Knoxville McGhee Tyson

Sat 5/30

6:45 am-8:55 am

Nonstop2h 10m

$149

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Sat 5/23

9:45 am-12:14 pm

Nonstop2h 29m

Knoxville McGhee Tyson

Sat 5/30

6:45 am-8:55 am

Nonstop2h 10m

$151

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Sat 6/6

10:54 am-9:38 pm

1 stop10h 44m

Knoxville McGhee Tyson

Sat 6/13

6:45 am-9:03 am

Nonstop2h 18m

$153

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Sat 6/6

10:54 am-9:38 pm

1 stop10h 44m

Knoxville McGhee Tyson

Sat 6/13

6:45 am-9:03 am

Nonstop2h 18m

$154

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Sat 5/23

9:45 am-12:14 pm

Nonstop2h 29m

Knoxville McGhee Tyson

Sat 5/30

6:45 am-8:55 am

Nonstop2h 10m

$157

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Sat 6/6

10:54 am-9:38 pm

1 stop10h 44m

Knoxville McGhee Tyson

Sat 6/13

6:45 am-9:03 am

Nonstop2h 18m

$159

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Sun 6/7

10:38 am-1:01 pm

Nonstop2h 23m

Knoxville McGhee Tyson

Sat 6/13

6:45 am-9:03 am

Nonstop2h 18m

$160

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Sat 6/6

10:54 am-9:38 pm

1 stop10h 44m

Knoxville McGhee Tyson

Sat 6/13

6:45 am-9:03 am

Nonstop2h 18m

$163

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 typical price of a round-trip flight between Boston and Knoxville?

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 $160. 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 $242.

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 $352.

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 from Boston 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 $286 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 $209 on momondo.

How have Boston to Knoxville flight prices changed over time?

As of May 2026, prices for Boston to Knoxville flights are approximately 2% 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

$118

Fastest flight time

2h 22m

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 $118. The best round-trip flight deal from Boston to Knoxville found on momondo in the last 72 hours is $149.
The fastest flight from Boston to Knoxville takes 2h 22m
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

Frequently asked questions about flying from Boston to Knoxville

  • 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 $88Free CancellationRating
7.3
709 reviews
Search Allegiant Air flights
DeltaPriceFrom $199Free CancellationRating
7.9
8,452 reviews
Search Delta flights
United AirlinesPriceFrom $210Free CancellationRating
7.4
9,715 reviews
Search United Airlines flights
American AirlinesPriceFrom $248Free CancellationRating
7.1
11,663 reviews
Search American Airlines flights
SouthwestPriceFrom $279Free CancellationRating
8.0
4,299 reviews
Search Southwest flights

  • Allegiant Air Flights From Boston to Knoxville

    The lowest priced Allegiant Air flight from Boston to Knoxville from the last 72 hours was $88. Generally, Allegiant Air has 1 flight on this route every week with an average price of $214. Allegiant Air is rated 7.3/10 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
Alcoa
Crossville
Maryville
Murphy
Oak Ridge
Newport
Lenoir City
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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