HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Knoxville

$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 8/23. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — TYS
ago. 2 — ago. 91
sáb. 8/2
sáb. 8/9
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Boston Logan Intl to Knoxville McGhee Tyson are usually found in February or July, booked 21 days in advance, depart on a Wednesday or Friday and return on a Tuesday

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 julio 28, 2025.

Round-trip from

$102
(Cheapflightsfares)

One-way from

$50
(Cheapflightsfares)

Popular in

January

Cheapest in

February

Average price

$214

Good round-trip deal

$108 or less

Good one-way deal

$62 or less
From Boston Logan Intl to Knoxville McGhee Tyson
Search Deals
One-way flight from Boston Logan Intl to Knoxville McGhee Tyson
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($87 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($23 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2025
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.
Search Deals

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 julio 28, 2025.

This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/2512:07 pmBOS - TYS
Nonstop2h 22mAllegiant Air
dom. 9/289:00 amTYS - BOS
Nonstop2h 17mAllegiant Air
Deal found 7/27$102
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/2110:34 amBOS - TYS
Nonstop2h 28mMultiple Airlines
mié. 8/277:15 amTYS - BOS
2 stops15h 57mMultiple Airlines
Deal found 7/26$171
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/94:18 pmBOS - TYS
1 stop4h 22mAmerican Airlines
mar. 12/164:03 pmTYS - BOS
1 stop4h 12mAmerican Airlines
Deal found 7/26$248
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 12/296:00 pmBOS - TYS
1 stop5h 54mDelta
mar. 1/62:30 pmTYS - BOS
1 stop4h 26mDelta
Deal found 7/27$249

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 julio 28, 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

jue. 9/25

12:07 pm-2:29 pm

Nonstop2h 22m

Knoxville McGhee Tyson

dom. 9/28

9:00 am-11:17 am

Nonstop2h 17m

$102

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

jue. 8/21

10:34 am-1:02 pm

Nonstop2h 28m

Knoxville McGhee Tyson

mié. 8/27

7:15 am-11:12 pm

2 stops15h 57m

$171

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

vie. 8/29

11:00 am-4:36 pm

1 stop5h 36m

Knoxville McGhee Tyson

dom. 8/31

5:45 am-10:48 am

1 stop5h 03m

$249

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

sáb. 8/23

11:03 am-1:31 pm

Nonstop2h 28m

$50

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

vie. 8/15

6:55 pm-10:04 am

1 stop15h 09m

$112

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

mié. 10/8

5:34 am-11:04 am

1 stop5h 30m

$140

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

dom. 10/12

6:40 am-12:53 pm

1 stop6h 13m

$255

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

jue. 7/31

5:30 am-10:27 am

1 stop4h 57m

$270

BostonKnoxville

BOS - TYS

BOSTYS

Boston Logan Intl

vie. 9/26

5:08 pm-12:21 am

2 stops31h 13m

$367

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

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 July 25, 2025.

To ensure you get the cheapest price possible for a flight from Boston to Knoxville, you should look to book at least 21 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 julio 28, 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 July 20, 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 julio 28, 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
7,975 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 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.

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

    According to our current data, Allegiant Air ($102), American Airlines ($248), and Delta ($249) offers the cheapest pricing from Boston to Knoxville. You may be able to fly from Boston to Knoxville for 67% less than the average price by searching for these airlines.

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

    $50 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 Delta and United Airlines, with prices starting from $140 and $220, respectively.

  • What are the cheapest flights from Boston to Knoxville?

    Looking at all options, your cheapest flight can be booked for $50. While the most popular route (Boston Logan Intl - Knoxville McGhee Tyson) can be booked for $102 on average our data indicates $123 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
Corbin
Cherokee
Alcoa
Oak Ridge
Murphy

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 julio 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$89Average$188FlexibilityNo cancel feeOn-time88%
DeltaCheapest$230Average$488FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$252Average$527FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$252Average$477FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.