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$50+ Cheap flights from Boston to Knoxville (BOS - TYS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — TYS
oct. 19 — oct. 261
dom. 10/19
dom. 10/26
1 adult, Economy
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Cheapflights Tip: The best prices from Boston Logan Intl to Knoxville McGhee Tyson are usually found in February or July, booked 85 days in advance, depart on a Wednesday or Thursday and return on a Monday

Cheap flight deals from Boston to Knoxville

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Knoxville (TYS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated septiembre 19, 2025.

Round-trip from

$165
(Booking.com)

One-way from

$50
(Cheapflightsfares)

Popular in

January

Cheapest in

February

Average price

$288

Good round-trip deal

$176 or less

Good one-way deal

$83 or less
From Boston Logan Intl to Knoxville McGhee Tyson
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One-way flight from Boston Logan Intl to Knoxville McGhee Tyson
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Highest demand for flights based on searches. 21% potential increase in price ($83 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Price to beat on a round-trip flight from Boston Logan Intl to Knoxville McGhee Tyson.
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Price to beat on a one-way flight from Boston Logan Intl to Knoxville McGhee Tyson.
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Find flight deals from Boston to Knoxville

Cheapest flights from Boston to Knoxville
Explore the most affordable flight options available from Boston to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 19, 2025.

This Booking.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/3011:07 amBOS - TYS
Nonstop2h 22mAllegiant Air
mar. 10/78:00 amTYS - BOS
Nonstop2h 11mAllegiant Air
Deal found 9/16$165
This Cheapflightsfares deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/810:33 amBOS - TYS
Nonstop2h 28mAllegiant Air
mar. 11/117:30 amTYS - BOS
Nonstop2h 13mAllegiant Air
Deal found 9/18$177
This Kiwi.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 11/55:45 amBOS - TYS
1 stop27h 19mMultiple Airlines
sáb. 11/87:30 amTYS - BOS
Nonstop2h 13mMultiple Airlines
Deal found 9/18$178
This Cheapflightsfares deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/1411:01 amBOS - TYS
Nonstop2h 29mAllegiant Air
mar. 10/218:00 amTYS - BOS
Nonstop2h 11mAllegiant Air
Deal found 9/16$184
This Kiwi.com deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 10/112:01 pmBOS - TYS
Nonstop2h 29mMultiple Airlines
mar. 10/2111:23 amTYS - BOS
1 stop24h 03mMultiple Airlines
Deal found 9/16$185
This Cheapflightsfares deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/2511:01 amBOS - TYS
Nonstop2h 29mAllegiant Air
dom. 10/269:00 amTYS - BOS
Nonstop2h 11mAllegiant Air
Deal found 9/18$192
This Cheapflightsfares deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/411:21 amBOS - TYS
Nonstop2h 29mAllegiant Air
jue. 10/99:00 amTYS - BOS
Nonstop2h 11mAllegiant Air
Deal found 9/17$197
This Kiwi.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/178:24 pmBOS - TYS
1 stop13h 54mMultiple Airlines
mar. 10/218:00 amTYS - BOS
Nonstop2h 11mMultiple Airlines
Deal found 9/18$201
This Kiwi.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/112:31 pmBOS - TYS
1 stop21h 32mMultiple Airlines
mar. 11/47:30 amTYS - BOS
Nonstop2h 13mMultiple Airlines
Deal found 9/18$204
This Cheapflightsfares deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 10/1811:16 amBOS - TYS
Nonstop2h 29mAllegiant Air
sáb. 10/258:00 amTYS - BOS
Nonstop2h 11mAllegiant Air
Deal found 9/18$212
This Kiwi.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/66:16 amBOS - TYS
1 stop10h 25mMultiple Airlines
sáb. 10/188:15 amTYS - BOS
Nonstop2h 11mMultiple Airlines
Deal found 9/18$218

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated septiembre 19, 2025.
Use the filters below to find and compare flights from Boston to Knoxville that are best for you.

Fly from

Boston

Fly to

Knoxville

Route

Depart

Return

Price

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

sáb. 11/1

6:16 am-10:03 am

1 stop27h 47m

Knoxville McGhee Tyson

mar. 11/4

7:30 am-9:43 am

Nonstop2h 13m

$204

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

mié. 10/8

12:01 pm-2:30 pm

Nonstop2h 29m

Knoxville McGhee Tyson

sáb. 10/18

8:15 am-10:26 am

Nonstop2h 11m

$235

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

mié. 10/29

5:30 am-10:48 am

1 stop5h 18m

Knoxville McGhee Tyson

mar. 11/4

7:20 pm-11:42 pm

1 stop4h 22m

$279

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

sáb. 10/25

5:30 am-10:29 am

1 stop4h 59m

Knoxville McGhee Tyson

sáb. 11/1

8:26 am-4:20 pm

1 stop7h 54m

$279

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

lun. 10/6

2:20 pm-10:33 am

2 stops20h 13m

Knoxville McGhee Tyson

mié. 10/8

9:00 am-11:11 am

Nonstop2h 11m

$295

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

lun. 12/8

6:25 pm-11:51 pm

1 stop5h 26m

Knoxville McGhee Tyson

jue. 12/11

3:56 pm-9:25 pm

1 stop5h 29m

$315

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

mar. 10/21

5:34 am-11:04 am

1 stop5h 30m

Knoxville McGhee Tyson

vie. 10/24

8:10 pm-1:13 am

1 stop5h 03m

$315

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

dom. 2/22

5:30 am-10:17 am

1 stop4h 47m

Knoxville McGhee Tyson

jue. 2/26

6:10 am-1:23 pm

1 stop7h 13m

$315

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

vie. 10/24

8:24 pm-10:03 am

1 stop13h 39m

Knoxville McGhee Tyson

dom. 10/26

9:15 pm-11:16 am

1 stop14h 01m

$322

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

mié. 10/1

12:01 pm-2:30 pm

Nonstop2h 29m

$50

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Showing 1-10 of 19 results
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Best time to book a flight from Boston to Knoxville

Have a flexible travel schedule? Discover the best time to fly to Knoxville from Boston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Boston to Knoxville

How far ahead should I book a flight from Boston to Knoxville?

Use this chart to determine the optimal time to book a round-trip flight from Boston to Knoxville. Price data was last updated on September 12, 2025.

To ensure you get the cheapest price possible for a flight from Boston to Knoxville, you should look to book at least 85 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Boston to Knoxville?

Currently, January is the cheapest month in which you can book a flight from Boston to Knoxville (average of $295). Flying from Boston to Knoxville in March is currently the most expensive (average of $376). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BOS to TYS?

Find hourly flight availability from Boston to Knoxville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 19, 2025.

A simple way to save on the total cost of your ticket is to fly from Boston to Knoxville in the morning. If you’re flexible enough to do this you can expect to save up to 69% on your trip compared to booking a flight in the evening.

What is the cheapest day to fly from Boston to Knoxville?

Use this chart to determine the cheapest time to fly round-trip from Boston to Knoxville. Price data was last updated on September 14, 2025.

Travelers seeking maximum savings on their Boston to Knoxville flight should consider departing on Wednesday mornings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Knoxville

Get insights into the airlines that provide service to Knoxville. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Knoxville. Reviews last updated septiembre 19, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from Boston to Knoxville by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,964 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,964 reviews
Delta
8.0
Very good
7,964 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,926 reviews
Delta
8.0
Very good
7,964 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,964 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Allegiant Air
7.2
Good
699 reviews
Delta
8.0
Very good
7,964 reviews

Boarding

8.2

Entertainment

7.9

Food

7.3

Overall

8.0

Comfort

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Boston to Knoxville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Boston to Knoxville flight route?

    This flight path from Boston Logan Intl to Knoxville McGhee Tyson was viewed by 2 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Boston to Knoxville?

    For as low as $235, Allegiant Air can have you in Knoxville from Boston in 2h 29m. Airlines will cover a distance of 829 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines flying from Boston to Knoxville round-trip?

    According to our current data, Allegiant Air ($89), Delta ($215), and American Airlines ($255) offers the cheapest pricing from Boston to Knoxville. You may be able to fly from Boston to Knoxville for 70% less than the average price by searching for these airlines.

  • What are the cheapest flights from Boston to Knoxville?

    Looking at all options, your cheapest flight can be booked for $37. While the most popular route (Boston Logan Intl - Knoxville McGhee Tyson) can be booked for $116 on average, our data indicates $172 when flying from Boston to Knoxville.

  • Can I find deals for flights from Boston to Knoxville that include hotel bookings?

    Yes. In addition to deals on Boston to Knoxville flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to Knoxville?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Knoxville.

  • Can I find deals for business class flights from Boston to Knoxville?

    Yes. Cheapflights offers flight deals from Boston to Knoxville by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Boston to Knoxville?

    Currently, January is the cheapest month in which you can book a flight from Boston to Knoxville (average of $295). Flying from Boston to Knoxville in March is currently the most expensive (average of $376). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
Morristown
Cherokee
Corbin
Alcoa
Oak Ridge
Murphy

Browse thousands of different options on Cheapflights for your next trip

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Top 4 airlines flying from Boston to Knoxville

Discover the top 4 airlines that operate flights from Boston to Knoxville. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated septiembre 19, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$89Average$192FlexibilityNo cancel feeOn-time88%
DeltaCheapest$215Average$495FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$255Average$481FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$318Average$573FlexibilityNo cancel feeOn-time69%

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