$58+ Cheap flights from Boston to Knoxville (BOS - TYS)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — TYS
Oct 16 — Oct 231
Round-trip
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”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 August, booked 77 days in advance, depart on a Friday or Saturday and return on a Thursday
Cheap flight deals from Boston to Knoxville
Cheapest
Best
Last-minute
One-way
Cheapest flights from Boston to KnoxvilleExplore 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 September 16, 2026.
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 September 16, 2026.
This CheapOair deal was found by Cheapflights users on 9/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/79:09 am -
Nonstop2h 30m
Sat 11/146:00 am -
Nonstop2h 19m
Deal found 9/12![Allegiant Air logo]()
$99
This Cheapflightsfares deal was found by Cheapflights users on 9/13. 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.
Sat 10/312:32 pm -
Nonstop2h 30m
Tue 10/208:30 am -
Nonstop2h 12m
Deal found 9/13![Allegiant Air logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 9/12. 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.
Tue 11/311:32 am -
Nonstop2h 30m
Sat 11/76:00 am -
Nonstop2h 19m
Deal found 9/12![Allegiant Air logo]()
$140
This Cheapflightsfares deal was found by Cheapflights users on 9/15. 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.
Sat 10/312:32 pm -
Nonstop2h 30m
Sat 10/106:00 am -
Nonstop2h 12m
Deal found 9/15![Allegiant Air logo]()
$141
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Sat 10/319:02 am -
Nonstop2h 30m
Tue 11/38:30 am -
Nonstop2h 12m
Deal found 9/15![Allegiant Air logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Thu 10/2910:32 am -
Nonstop2h 30m
Tue 11/38:30 am -
Nonstop2h 12m
Deal found 9/13![Allegiant Air logo]()
$146
This Kiwi.com deal was found by Cheapflights users on 9/12. 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.
Sat 11/149:09 am -
Nonstop2h 30m
Sun 11/156:00 am -
Nonstop2h 19m
Deal found 9/12![Allegiant Air logo]()
$150
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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.
Sat 10/312:32 pm -
Nonstop2h 30m
Tue 10/138:30 am -
Nonstop2h 12m
Deal found 9/14![Allegiant Air logo]()
$151
This Mytrip deal was found by Cheapflights users on 9/14. 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.
Sat 11/79:09 am -
Nonstop2h 30m
Sun 11/156:00 am -
Nonstop2h 19m
Deal found 9/14![Allegiant Air logo]()
$155
This Gotogate deal was found by Cheapflights users on 9/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2910:32 am -
Nonstop2h 30m
Sun 11/17:30 am -
Nonstop2h 12m
Deal found 9/14![Allegiant Air logo]()
$157
Best flights from Boston to KnoxvilleDiscover carefully curated flight deals from Boston to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 16, 2026.
Discover carefully curated flight deals from Boston to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 16, 2026.
This Delta deal was found by Cheapflights users on 9/15. 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.
Thu 10/298:00 am -
1 stop7h 47m
Tue 11/35:15 pm -
1 stop6h 05m
Deal found 9/15![Delta logo]()
$241
This Southwest deal was found by Cheapflights users on 9/13. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/135:20 am -
1 stop6h 50m
Tue 11/171:00 pm -
2 stops8h 55m
Deal found 9/13![Southwest logo]()
$350
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Mon 11/2310:30 am -
2 stops10h 24m
Fri 11/2711:20 am -
1 stop6h 07m
Deal found 9/14![United Airlines logo]()
$355
This Delta deal was found by Cheapflights users on 9/15. 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 10/304:00 pm -
1 stop5h 09m
Thu 11/56:00 am -
1 stop5h 22m
Deal found 9/15![Delta logo]()
$270
This Delta deal was found by Cheapflights users on 9/15. 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.
Thu 10/295:30 am -
1 stop5h 24m
Sun 11/16:00 am -
1 stop4h 25m
Deal found 9/15![Delta logo]()
$310
This United Airlines deal was found by Cheapflights users on 9/15. 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 11/77:30 am -
2 stops9h 29m
Mon 11/99:45 am -
2 stops7h 59m
Deal found 9/15![United Airlines logo]()
$382
This Southwest deal was found by Cheapflights users on 9/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/75:25 am -
2 stops12h 20m
Tue 11/101:00 pm -
2 stops9h 15m
Deal found 9/11![Southwest logo]()
$384
This Delta deal was found by Cheapflights users on 9/14. 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.
Thu 11/199:05 am -
1 stop4h 50m
Sun 11/225:40 am -
1 stop5h 23m
Deal found 9/14![Delta logo]()
$345
This Delta deal was found by Cheapflights users on 9/13. 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.
Thu 12/1012:20 pm -
1 stop7h 54m
Fri 12/187:00 am -
1 stop6h 44m
Deal found 9/13![Delta logo]()
$365
This Delta deal was found by Cheapflights users on 9/12. 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.
Sat 11/75:39 am -
1 stop5h 00m
Wed 11/1112:34 pm -
1 stop5h 16m
Deal found 9/12![Delta logo]()
$365
This Delta deal was found by Cheapflights users on 9/12. 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.
Wed 11/44:00 pm -
1 stop5h 09m
Sat 11/71:40 pm -
1 stop5h 42m
Deal found 9/12![Delta logo]()
$365
This Delta deal was found by Cheapflights users on 9/15. 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.
Sun 10/185:39 am -
1 stop4h 41m
Mon 10/266:23 pm -
1 stop6h 57m
Deal found 9/15![Delta logo]()
$410
Last-minute flights from Boston to KnoxvilleDiscover last-minute flight deals from Boston to Knoxville. Data last updated September 16, 2026 and is based on user searches.
Discover last-minute flight deals from Boston to Knoxville. Data last updated September 16, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 9/13. 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.
Sat 10/312:32 pm -
Nonstop2h 30m
Tue 10/208:30 am -
Nonstop2h 12m
Deal found 9/13![Allegiant Air logo]()
$123
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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.
Sat 10/312:32 pm -
Nonstop2h 30m
Sat 10/106:00 am -
Nonstop2h 12m
Deal found 9/14![Allegiant Air logo]()
$141
This Cheapflightsfares deal was found by Cheapflights users on 9/14. 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.
Sat 10/312:32 pm -
Nonstop2h 30m
Tue 10/138:30 am -
Nonstop2h 12m
Deal found 9/14![Allegiant Air logo]()
$151
This Booking.com deal was found by Cheapflights users on 9/12. 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.
Tue 10/2711:32 am -
Nonstop2h 30m
Tue 11/38:30 am -
Nonstop2h 12m
Deal found 9/12![Allegiant Air logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 9/13. 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.
Thu 10/2910:32 am -
Nonstop2h 30m
Tue 11/38:30 am -
Nonstop2h 12m
Deal found 9/13![Allegiant Air logo]()
$146
This Gotogate deal was found by Cheapflights users on 9/14. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2910:32 am -
Nonstop2h 30m
Sun 11/17:30 am -
Nonstop2h 12m
Deal found 9/14![Allegiant Air logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Sat 10/319:02 am -
Nonstop2h 30m
Tue 11/38:30 am -
Nonstop2h 12m
Deal found 9/15![Allegiant Air logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Sat 10/319:02 am -
Nonstop2h 30m
Sun 11/17:30 am -
Nonstop2h 12m
Deal found 9/15![Allegiant Air logo]()
$161
One-way flights from Boston to KnoxvilleSearch for one-way flight options from Boston to Knoxville. Find affordable one-way fares based on user searches. Data last updated September 16, 2026.
Search for one-way flight options from Boston to Knoxville. Find affordable one-way fares based on user searches. Data last updated September 16, 2026.
This Super.com deal was found by Cheapflights users on 9/14. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/312:32 pm -
Nonstop2h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Allegiant Air logo]()
$58
This Mytrip deal was found by Cheapflights users on 9/12. 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.
Sat 11/79:09 am -
Nonstop2h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Allegiant Air logo]()
$59
This Kiwi.com deal was found by Cheapflights users on 9/12. 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.
Tue 11/311:32 am -
Nonstop2h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Allegiant Air logo]()
$82
This Kiwi.com deal was found by Cheapflights users on 9/14. 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.
Thu 10/2910:32 am -
Nonstop2h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Allegiant Air logo]()
$86
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Sat 9/2612:35 pm -
Nonstop2h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Allegiant Air logo]()
$102
This American Airlines deal was found by Cheapflights users on 9/14. 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.
Tue 10/277:00 am -
1 stop5h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![American Airlines logo]()
$114
This Southwest deal was found by Cheapflights users on 9/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2711:45 am -
2 stops9h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Southwest logo]()
$119
This American Airlines deal was found by Cheapflights users on 9/14. 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.
Thu 10/299:50 am -
1 stop4h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![American Airlines logo]()
$128
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 September 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $99 (CheapOair) |
One-way from | $58 (Super.com) |
Popular in | April |
Cheapest in | February |
Average price | $272 |
Good round-trip deal | $111 or less |
Good one-way deal | $101 or less |
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 7,457,451 searches. Data last updated September 16, 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
Cheapest round-trip
BostonKnoxville
BOS Boston Logan Intl - TYS Knoxville McGhee Tyson
BOSTYS
Boston Logan Intl
Thu 11/19
6:45 am-1:55 pm
1 stop7h 10m
Knoxville McGhee Tyson
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$173
BostonKnoxville
BOS Boston Logan Intl - TYS Knoxville McGhee Tyson
BOSTYS
Boston Logan Intl
Thu 11/12
5:20 am-3:00 pm
2 stops9h 40m
Knoxville McGhee Tyson
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$178
BostonKnoxville
BOS Boston Logan Intl - TYS Knoxville McGhee Tyson
BOSTYS
Boston Logan Intl
Sat 10/17
6:00 am-2:42 pm
2 stops8h 42m
Knoxville McGhee Tyson
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$184
BostonKnoxville
BOS Boston Logan Intl - TYS Knoxville McGhee Tyson
BOSTYS
Boston Logan Intl
Thu 11/19
7:20 am-2:48 pm
2 stops7h 28m
Knoxville McGhee Tyson
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$188
BostonKnoxville
BOS Boston Logan Intl - TYS Knoxville McGhee Tyson
BOSTYS
Boston Logan Intl
Sun 11/15
12:55 pm-8:35 pm
2 stops7h 40m
Knoxville McGhee Tyson
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$219
BostonKnoxville
BOS Boston Logan Intl - TYS Knoxville McGhee Tyson
BOSTYS
Boston Logan Intl
Mon 11/2
3:41 pm-11:59 pm
2 stops8h 18m
Knoxville McGhee Tyson
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$228
BostonKnoxville
BOS Boston Logan Intl - TYS Knoxville McGhee Tyson
BOSTYS
Boston Logan Intl
Wed 11/4
7:20 am-4:59 pm
2 stops9h 39m
Knoxville McGhee Tyson
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$228
BostonKnoxville
BOS Boston Logan Intl - TYS Knoxville McGhee Tyson
BOSTYS
Boston Logan Intl
Thu 10/29
8:00 am-3:47 pm
1 stop7h 47m
Knoxville McGhee Tyson
Tue 11/3
5:15 pm-11:20 pm
1 stop6h 05m
$241
BostonKnoxville
BOS Boston Logan Intl - TYS Knoxville McGhee Tyson
BOSTYS
Boston Logan Intl
Fri 10/2
12:54 pm-8:35 am
2 stops19h 41m
Knoxville McGhee Tyson
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$249
Quickest round-trip
BostonKnoxville
BOS Boston Logan Intl - TYS Knoxville McGhee Tyson
BOSTYS
Boston Logan Intl
Wed 9/30
2:10 pm-7:00 pm
1 stop4h 50m
Knoxville McGhee Tyson
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$254
Showing 1-10 of 23 resultsSorted by cheapest first
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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy1 star | Trust Score*3 stars |
- 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.
BOS-TYS
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?
To ensure you get the cheapest price possible for a flight from Boston to Knoxville, you should look to book at least 76 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, February is the cheapest month in which you can book a flight from Boston to Knoxville (average of $160). Flying from Boston to Knoxville in April is currently the most expensive (average of $368). 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 September 16, 2026.
When flying from Boston to Knoxville, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
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 September 16, 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.
Boarding
8.1
Comfort
8.0
Overall
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Boarding
8.1
Comfort
8.0
Overall
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Boarding
8.1
Comfort
8.0
Overall
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Boarding
8.1
Comfort
8.0
Overall
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Boarding
8.1
Comfort
8.0
Overall
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
Boarding
8.1
Comfort
8.0
Overall
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Reviews
1 / 20
4.0
OkaySteven,Sep 2026
OGG - HNL
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.
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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 7,457,451 searches. Data last updated September 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$92 | Average$237 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$151 | Average$355 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$175 | Average$367 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$262 | Average$437 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$279 | Average$385 | FlexibilityNo cancel fee | On-time63% |