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

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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — BOS
Aug 2 — Aug 91
Sat 8/2
Sat 8/9
1 adult, Economy
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Cheapflights Tip: The best prices from Knoxville McGhee Tyson to Boston Logan Intl are usually found in March or June, booked 36 days in advance, depart on a Tuesday or Monday and return on a Wednesday

Cheap flight deals from Knoxville to Boston

Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to Boston (BOS). 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 July 28, 2025.

Round-trip from

$91
(Booking.com)

One-way from

$50
(Cheapflightsfares)

Popular in

January

Cheapest in

March

Average price

$214

Good round-trip deal

$102 or less

Good one-way deal

$75 or less
From Knoxville McGhee Tyson to Boston Logan Intl
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One-way flight from Knoxville McGhee Tyson to Boston Logan Intl
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Highest demand for flights based on searches. 26% potential increase in price ($104 potential increase over avg. RT price).
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Cheapest flight prices on average. 11% potential price decrease ($29 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Knoxville McGhee Tyson to Boston Logan Intl.
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Price to beat on a one-way flight from Knoxville McGhee Tyson to Boston Logan Intl.
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Find flight deals from Knoxville to Boston

Cheapest flights from Knoxville to Boston
Explore the most affordable flight options available from Knoxville to Boston. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 28, 2025.

This Booking.com deal was found by Cheapflights users on 7/26. 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 9/49:00 amTYS - BOS
Nonstop2h 17mAllegiant Air
Tue 9/910:33 amBOS - TYS
Nonstop2h 22mAllegiant Air
Deal found 7/26$91
This Mytrip deal was found by Cheapflights users on 7/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/244:31 pmTYS - BOS
1 stop7h 24mMultiple Airlines
Wed 10/112:01 pmBOS - TYS
Nonstop2h 29mMultiple Airlines
Deal found 7/28$179
This Delta deal was found by Cheapflights users on 7/26. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/226:14 pmTYS - BOS
1 stop7h 06mDelta
Mon 8/255:35 amBOS - TYS
1 stop5h 07mDelta
Deal found 7/26$249
This United Airlines deal was found by Cheapflights users on 7/26. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/95:45 amTYS - BOS
2 stops7h 58mUnited Airlines
Tue 8/125:30 amBOS - TYS
1 stop4h 57mUnited Airlines
Deal found 7/26$264
This American Airlines deal was found by Cheapflights users on 7/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/37:45 pmTYS - BOS
1 stop3h 59mAmerican Airlines
Sun 10/126:40 amBOS - TYS
1 stop6h 13mAmerican Airlines
Deal found 7/27$274

Cheapflights Fare Finder

 
Customize your flight search to find flights from Knoxville to Boston 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 July 28, 2025.
Use the filters below to find and compare flights from Knoxville to Boston that are best for you.

Fly from

Knoxville

Fly to

Boston

Route

Depart

Return

Price

KnoxvilleBoston

TYS - BOS

TYSBOS

Knoxville McGhee Tyson

Thu 9/4

9:00 am-11:17 am

Nonstop2h 17m

Boston Logan Intl

Tue 9/9

10:33 am-12:55 pm

Nonstop2h 22m

$91

KnoxvilleBoston

TYS - BOS

TYSBOS

Knoxville McGhee Tyson

Wed 9/24

4:31 pm-11:55 pm

1 stop7h 24m

Boston Logan Intl

Wed 10/1

12:01 pm-2:30 pm

Nonstop2h 29m

$179

KnoxvilleBoston

TYS - BOS

TYSBOS

Knoxville McGhee Tyson

Fri 8/22

6:14 pm-1:20 am

1 stop7h 06m

Boston Logan Intl

Mon 8/25

5:35 am-10:42 am

1 stop5h 07m

$249

KnoxvilleBoston

TYS - BOS

TYSBOS

Knoxville McGhee Tyson

Sat 8/9

5:45 am-1:43 pm

2 stops7h 58m

Boston Logan Intl

Tue 8/12

5:30 am-10:27 am

1 stop4h 57m

$264

KnoxvilleBoston

TYS - BOS

TYSBOS

Knoxville McGhee Tyson

Fri 10/3

7:45 pm-11:44 pm

1 stop3h 59m

Boston Logan Intl

Sun 10/12

6:40 am-12:53 pm

1 stop6h 13m

$274

KnoxvilleBoston

TYS - BOS

TYSBOS

Knoxville McGhee Tyson

Tue 9/2

9:00 am-11:14 am

Nonstop2h 14m

$50

KnoxvilleBoston

TYS - BOS

TYSBOS

Knoxville McGhee Tyson

Wed 8/27

7:15 am-11:12 pm

2 stops15h 57m

$106

KnoxvilleBoston

TYS - BOS

TYSBOS

Knoxville McGhee Tyson

Tue 8/26

6:10 am-10:27 am

1 stop4h 17m

$140

KnoxvilleBoston

TYS - BOS

TYSBOS

Knoxville McGhee Tyson

Tue 8/26

7:00 am-2:13 pm

2 stops7h 13m

$145

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Best time to book a flight from Knoxville to Boston

Have a flexible travel schedule? Discover the best time to fly to Boston from Knoxville 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 Knoxville to Boston

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

Use this chart to determine the optimal time to book a round-trip flight from Knoxville to Boston. Price data was last updated on July 25, 2025.

The best time to book flights from Knoxville to Boston is 36 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, January is the cheapest month in which you can book a flight from Knoxville to Boston (average of $218). Flying from Knoxville to Boston in July is currently the most expensive (average of $311). 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 TYS to BOS?

Find hourly flight availability from Knoxville to Boston. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 28, 2025.

It’s optimal to fly from Knoxville to Boston in the morning. By choosing this option you can save up to 67% on the cost of your flight, compared to a flight at noon.

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

Use this chart to determine the cheapest time to fly round-trip from Knoxville to Boston. Price data was last updated on July 27, 2025.

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

How much does it cost to fly round-trip from Knoxville to Boston?

Reviews of airlines servicing Boston

Get insights into the airlines that provide service to Boston. 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 Boston. Reviews last updated July 28, 2025.
Read through reviews of airlines operating flights from Knoxville to Boston, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,975 reviews

Food

7.3

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

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
7,975 reviews
Delta
8.0
Very good
7,975 reviews

Food

7.3

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

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
8,892 reviews
Delta
8.0
Very good
7,975 reviews

Food

7.3

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

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
7,975 reviews

Food

7.3

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

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
702 reviews
Delta
8.0
Very good
7,975 reviews

Food

7.3

Entertainment

7.9

Overall

8.0

Comfort

7.9

Crew

8.5

Boarding

8.2

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 Knoxville to Boston. 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 Knoxville to Boston flight route?

    Within the past month, 1 users have taken a look at flights from Knoxville McGhee Tyson to Boston Logan Intl.

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

    Our cheapest airline available from Knoxville to Boston is Allegiant Air. Our recent data shows that you can find tickets from as low as $91 on this airline. Additional options worth looking into are Delta and United Airlines, starting at $249 and $264 round-trip. Allegiant Air is 67% cheaper than the average price of flights available within the next 90 days to this destination.

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

    One-way options have recently been found by users for as low as $50 on Allegiant Air. Other airlines that offer cheap prices include Delta from $140 and United Airlines from $145 one-way.

  • What are the cheapest flights from Knoxville to Boston?

    Looking at all options, your cheapest flight can be booked for $48. While the most popular route (Knoxville McGhee Tyson - Boston Logan Intl) can be booked for $85 on average our data indicates $134 when flying from Knoxville to Boston.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Knoxville to Boston 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 Knoxville to Boston?

    Currently, January is the cheapest month in which you can book a flight from Knoxville to Boston (average of $218). Flying from Knoxville to Boston in July is currently the most expensive (average of $311). 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 Boston?

Book flights to Boston if you plan to visit one of these locations
Cambridge
Medford
Watertown
Warwick
Seabrook
Waltham
Framingham
Lowell
Randolph
Smithfield
Cranston
Chestnut Hill
York Beach
Chelsea
Saco
Burlington
Hampton Beach
Swansea
Lincoln
Quincy

Browse thousands of different options on Cheapflights for your next trip

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Top 4 airlines flying from Knoxville to Boston

Discover the top 4 airlines that operate flights from Knoxville to Boston. 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 July 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$89Average$173FlexibilityNo cancel feeOn-time88%
DeltaCheapest$240Average$463FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$248Average$459FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$252Average$646FlexibilityNo cancel feeOn-time69%

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