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$58+ 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 4/25. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — TYS
Apr 18 — Apr 251
Sat 4/18
Sat 4/25
1 adult, Economy
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Find cheap flights from Boston to Knoxville with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

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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 54 days in advance, depart on a Wednesday or Friday and return on a Tuesday

Cheap 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 March 19, 2026.

This Kiwi.com deal was found by Cheapflights users on 3/19. 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.
Sun 4/129:06 am
BOS
-
TYS
Nonstop2h 29m
Allegiant Air
Thu 4/166:00 am
TYS
-
BOS
Nonstop2h 16m
Allegiant Air
Deal found 3/19$129
This Kiwi.com deal was found by Cheapflights users on 3/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/39:06 am
BOS
-
TYS
Nonstop2h 29m
Allegiant Air
Thu 5/76:30 am
TYS
-
BOS
Nonstop2h 16m
Allegiant Air
Deal found 3/17$134
This Cheapflightsfares deal was found by Cheapflights users on 3/16. 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.
Thu 4/210:36 am
BOS
-
TYS
Nonstop2h 29m
Allegiant Air
Sun 4/57:30 am
TYS
-
BOS
Nonstop2h 16m
Allegiant Air
Deal found 3/16$135
This Booking.com deal was found by Cheapflights users on 3/19. 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.
Thu 6/410:38 am
BOS
-
TYS
Nonstop2h 23m
Allegiant Air
Sun 6/77:30 am
TYS
-
BOS
Nonstop2h 18m
Allegiant Air
Deal found 3/19$140
This Cheapflightsfares deal was found by Cheapflights users on 3/16. 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.
Thu 6/1110:38 am
BOS
-
TYS
Nonstop2h 23m
Allegiant Air
Sun 6/147:30 am
TYS
-
BOS
Nonstop2h 18m
Allegiant Air
Deal found 3/16$145
This Kiwi.com deal was found by Cheapflights users on 3/18. 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.
Sun 5/39:06 am
BOS
-
TYS
Nonstop2h 29m
Multiple Airlines
Thu 5/711:27 am
TYS
-
BOS
1 stop11h 55m
Multiple Airlines
Deal found 3/18$146
This Cheapflightsfares deal was found by Cheapflights users on 3/16. 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.
Thu 4/210:36 am
BOS
-
TYS
Nonstop2h 29m
Allegiant Air
Thu 4/96:00 am
TYS
-
BOS
Nonstop2h 16m
Allegiant Air
Deal found 3/16$150
This Kiwi.com deal was found by Cheapflights users on 3/17. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/39:06 am
BOS
-
TYS
Nonstop2h 29m
Allegiant Air
Sun 5/106:30 am
TYS
-
BOS
Nonstop2h 16m
Allegiant Air
Deal found 3/17$152

Find 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 March 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$131
(Cheapflightsfares)

One-way from

$58
(Kiwi.com)

Popular in

March

Cheapest in

February

Average price

$359

Good round-trip deal

$158 or less

Good one-way deal

$126 or less
Provider with most accurate pricing for Boston Logan Intl-Knoxville McGhee Tyson flight deals.
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Provider most trusted by Cheapflights users for Boston Logan Intl-Knoxville McGhee Tyson flights.
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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. 3% potential increase in price ($8 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals
Price to beat on a round-trip flight from Boston Logan Intl to Knoxville McGhee Tyson.
Search Deals
Price to beat on a one-way flight from Boston Logan Intl to Knoxville McGhee Tyson.
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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 March 19, 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

Wed 4/8

5:45 am-10:50 am

1 stop5h 05m

Knoxville McGhee Tyson

Sat 4/11

7:20 pm-11:59 pm

1 stop4h 39m

$287

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Tue 4/7

7:35 am-5:10 pm

2 stops9h 35m

Knoxville McGhee Tyson

Tue 4/14

7:05 am-5:15 pm

2 stops10h 10m

$307

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Mon 4/13

10:40 am-8:20 pm

2 stops9h 40m

Knoxville McGhee Tyson

Wed 4/15

7:05 am-5:15 pm

2 stops10h 10m

$317

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Thu 6/4

5:45 am-1:45 pm

2 stops8h 00m

Knoxville McGhee Tyson

Sun 6/14

7:00 pm-12:55 am

1 stop5h 55m

$351

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Fri 6/12

3:55 pm-10:20 pm

1 stop6h 25m

Knoxville McGhee Tyson

Sat 6/20

7:00 am-4:20 pm

1 stop9h 20m

$381

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Thu 4/9

10:40 am-8:20 pm

2 stops9h 40m

Knoxville McGhee Tyson

Tue 4/14

7:05 am-3:55 pm

2 stops8h 50m

$383

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Thu 4/9

10:40 am-8:20 pm

2 stops9h 40m

Knoxville McGhee Tyson

Wed 4/15

7:05 am-5:15 pm

2 stops10h 10m

$383

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Wed 4/22

10:05 am-11:08 pm

2 stops13h 03m

Knoxville McGhee Tyson

Tue 4/28

7:00 am-4:22 pm

2 stops9h 22m

$397

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Thu 4/9

10:40 am-8:20 pm

2 stops9h 40m

Knoxville McGhee Tyson

Mon 4/13

6:45 pm-11:15 pm

1 stop4h 30m

$423

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

Sat 5/23

3:54 pm-11:12 pm

1 stop7h 18m

Knoxville McGhee Tyson

Sat 5/30

6:30 am-7:14 pm

2 stops12h 44m

$456

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/16

Showing 1-10 of 23 resultsSorted by cheapest first
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3

Compare providers for flights from Boston to Knoxville

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Knoxville in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boston-Knoxville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Knoxville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boston-Knoxville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Knoxville flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Knoxville flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 March 13, 2026.

To ensure you get the cheapest price possible for a flight from Boston to Knoxville, you should look to book at least 54 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, May is the cheapest month in which you can book a flight from Boston to Knoxville (average of $53). Flying from Boston to Knoxville in January is currently the most expensive (average of $161). 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.

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 March 19, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andUnited 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.
Southwest
8.0
Very good
4,319 reviews

Overall

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,319 reviews
Southwest
8.0
Very good
4,319 reviews

Overall

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Delta
7.9
Good
8,293 reviews
Southwest
8.0
Very good
4,319 reviews

Overall

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
9,440 reviews
Southwest
8.0
Very good
4,319 reviews

Overall

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Allegiant Air
7.3
Good
713 reviews
Southwest
8.0
Very good
4,319 reviews

Overall

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
American Airlines
7.1
Good
11,474 reviews
Southwest
8.0
Very good
4,319 reviews

Overall

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Comfort

8.0

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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 6 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 $287, United Airlines can have you in Knoxville from Boston in 5h 05m. 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 ($88), Delta ($199), and United Airlines ($210) offers the cheapest pricing from Boston to Knoxville. You may be able to fly from Boston to Knoxville for 68% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Boston to Knoxville one-way?

    $52 is the cheapest one-way deal found within the past few days, from Allegiant Air. You may also be able to find cheap deals on American Airlines and United Airlines, with prices starting from $138 and $139, respectively.

  • What are the cheapest flights from Boston to Knoxville?

    Looking at all options, your cheapest flight can be booked for $94. While the most popular route (Boston Logan Intl - Knoxville McGhee Tyson) can be booked for $95 on average, our data indicates $193 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, May is the cheapest month in which you can book a flight from Boston to Knoxville (average of $53). Flying from Boston to Knoxville in January is currently the most expensive (average of $161). 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
Cherokee
Crossville
Corbin
Morristown
Bryson City
Alcoa
Murphy
Oak Ridge

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Top 5 airlines flying from Boston to Knoxville

Discover the top 5 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 March 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$88Average$196FlexibilityNo cancel feeOn-time88%
DeltaCheapest$199Average$396FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$210Average$393FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$248Average$404FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$279Average$405FlexibilityNo cancel feeOn-time63%

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