$66+ 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 5/23. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — BOS
May 28 — Jun 41
Round-trip
1 adult, Economy
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Find cheap flights from Knoxville to Boston 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 Knoxville McGhee Tyson to Boston Logan Intl are usually found in May or February, booked 73 days in advance, depart on a Tuesday or Monday and return on a Wednesday
Cheap flight deals from Knoxville to Boston
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Cheapest flights from Knoxville to BostonExplore 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 April 28, 2026.
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 April 28, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 4/23. 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 5/236:45 am
TYS
- BOS
Nonstop2h 10m
Allegiant Air
Sat 5/309:45 am
BOS
- TYS
Nonstop2h 29m
Allegiant Air
Deal found 4/23![Allegiant Air logo]()
$123
This Cheapflightsfares deal was found by Cheapflights users on 4/23. 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 5/76:30 am
TYS
- BOS
Nonstop2h 16m
Allegiant Air
Sun 5/109:36 am
BOS
- TYS
Nonstop2h 29m
Allegiant Air
Deal found 4/23![Allegiant Air logo]()
$131
This Cheapflightsfares deal was found by Cheapflights users on 4/24. 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 8/209:30 am
TYS
- BOS
Nonstop2h 19m
Allegiant Air
Sun 8/2312:39 pm
BOS
- TYS
Nonstop2h 28m
Allegiant Air
Deal found 4/24![Allegiant Air logo]()
$149
This Cheapflightsfares deal was found by Cheapflights users on 4/25. 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 7/27:30 am
TYS
- BOS
Nonstop2h 20m
Allegiant Air
Sat 7/49:40 am
BOS
- TYS
Nonstop2h 22m
Allegiant Air
Deal found 4/25![Allegiant Air logo]()
$168
This Kiwi.com deal was found by Cheapflights users on 4/23. 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 5/317:30 am
TYS
- BOS
Nonstop2h 10m
Multiple Airlines
Wed 6/35:45 am
BOS
- TYS
1 stop12h 13m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$172
This Kiwi.com deal was found by Cheapflights users on 4/24. 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.
Mon 5/181:15 pm
TYS
- BOS
1 stop19h 57m
Multiple Airlines
Sat 5/239:45 am
BOS
- TYS
Nonstop2h 29m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$178
This Cheapflightsfares deal was found by Cheapflights users on 4/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/146:30 am
TYS
- BOS
Nonstop2h 16m
Allegiant Air
Sun 5/2410:30 am
BOS
- TYS
Nonstop2h 29m
Allegiant Air
Deal found 4/28![Allegiant Air logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/123:48 pm
TYS
- BOS
1 stop17h 24m
Multiple Airlines
Sat 5/167:00 am
BOS
- TYS
1 stop11h 03m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 5/146:30 am
TYS
- BOS
Nonstop2h 16m
Allegiant Air
Sat 5/239:45 am
BOS
- TYS
Nonstop2h 29m
Allegiant Air
Deal found 4/24![Allegiant Air logo]()
$195
Best flights from Knoxville to BostonDiscover carefully curated flight deals from Knoxville to Boston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 28, 2026.
Discover carefully curated flight deals from Knoxville to Boston that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 28, 2026.
This Delta deal was found by Cheapflights users on 4/27. 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.
Tue 9/86:10 am
TYS
- BOS
1 stop7h 14m
Delta
Mon 9/142:00 pm
BOS
- TYS
1 stop6h 33m
Delta
Deal found 4/27![Delta logo]()
$306
This Southwest deal was found by Cheapflights users on 4/23. 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 8/77:10 am
TYS
- BOS
2 stops9h 55m
Southwest
Mon 8/105:00 am
BOS
- TYS
2 stops6h 55m
Southwest
Deal found 4/23![Southwest logo]()
$345
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Fri 5/225:45 am
TYS
- BOS
2 stops7h 27m
United Airlines
Mon 5/255:45 am
BOS
- TYS
1 stop4h 57m
United Airlines
Deal found 4/23![United Airlines logo]()
$359
This Southwest deal was found by Cheapflights users on 4/26. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/412:35 pm
TYS
- BOS
2 stops9h 05m
Southwest
Thu 6/181:10 pm
BOS
- TYS
2 stops8h 00m
Southwest
Deal found 4/26![Southwest logo]()
$368
This Delta deal was found by Cheapflights users on 4/25. 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.
Mon 8/105:00 pm
TYS
- BOS
1 stop5h 27m
Delta
Fri 8/148:00 am
BOS
- TYS
1 stop7h 07m
Delta
Deal found 4/25![Delta logo]()
$407
This Southwest deal was found by Cheapflights users on 4/25. 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.
Wed 6/176:55 pm
TYS
- BOS
1 stop4h 35m
Southwest
Sun 6/215:30 am
BOS
- TYS
2 stops10h 15m
Southwest
Deal found 4/25![Southwest logo]()
$382
This United Airlines deal was found by Cheapflights users on 4/24. 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.
Tue 9/85:45 am
TYS
- BOS
2 stops7h 02m
United Airlines
Mon 9/143:13 pm
BOS
- TYS
1 stop5h 35m
United Airlines
Deal found 4/24![United Airlines logo]()
$434
This Delta deal was found by Cheapflights users on 4/23. 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 7/247:43 pm
TYS
- BOS
1 stop5h 37m
Delta
Sun 8/25:40 am
BOS
- TYS
1 stop4h 40m
Delta
Deal found 4/23![Delta logo]()
$407
This United Airlines deal was found by Cheapflights users on 4/25. 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 9/268:30 am
TYS
- BOS
2 stops12h 53m
United Airlines
Sat 10/33:35 pm
BOS
- TYS
2 stops8h 20m
United Airlines
Deal found 4/25![United Airlines logo]()
$439
This Southwest deal was found by Cheapflights users on 4/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/312:20 pm
TYS
- BOS
2 stops9h 45m
Southwest
Sun 8/25:30 am
BOS
- TYS
2 stops10h 15m
Southwest
Deal found 4/27![Southwest logo]()
$416
This Southwest deal was found by Cheapflights users on 4/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/312:35 pm
TYS
- BOS
2 stops11h 30m
Southwest
Mon 7/65:45 am
BOS
- TYS
2 stops10h 00m
Southwest
Deal found 4/27![Southwest logo]()
$437
This Southwest deal was found by Cheapflights users on 4/24. 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.
Sun 6/77:05 am
TYS
- BOS
2 stops7h 25m
Southwest
Tue 6/95:25 am
BOS
- TYS
2 stops6h 40m
Southwest
Deal found 4/24![Southwest logo]()
$437
Last-minute flights from Knoxville to BostonDiscover last-minute flight deals from Knoxville to Boston. Data last updated April 28, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to Boston. Data last updated April 28, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 4/23. 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 4/306:00 am
TYS
- BOS
Nonstop2h 16m
Allegiant Air
Sun 5/39:06 am
BOS
- TYS
Nonstop2h 29m
Allegiant Air
Deal found 4/23![Allegiant Air logo]()
$197
This Cheapflightsfares deal was found by Cheapflights users on 4/23. 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 5/76:30 am
TYS
- BOS
Nonstop2h 16m
Allegiant Air
Sun 5/109:36 am
BOS
- TYS
Nonstop2h 29m
Allegiant Air
Deal found 4/23![Allegiant Air logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 4/23. 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.
Fri 5/81:15 pm
TYS
- BOS
1 stop8h 27m
Multiple Airlines
Sun 5/109:36 am
BOS
- TYS
Nonstop2h 29m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$198
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/123:48 pm
TYS
- BOS
1 stop17h 24m
Multiple Airlines
Sat 5/167:00 am
BOS
- TYS
1 stop11h 03m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$189
This Cheapflightsfares deal was found by Cheapflights users on 4/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/146:30 am
TYS
- BOS
Nonstop2h 16m
Allegiant Air
Sun 5/2410:30 am
BOS
- TYS
Nonstop2h 29m
Allegiant Air
Deal found 4/28![Allegiant Air logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 5/146:30 am
TYS
- BOS
Nonstop2h 16m
Allegiant Air
Sat 5/239:45 am
BOS
- TYS
Nonstop2h 29m
Allegiant Air
Deal found 4/24![Allegiant Air logo]()
$195
This Kiwi.com deal was found by Cheapflights users on 4/24. 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.
Mon 5/181:15 pm
TYS
- BOS
1 stop19h 57m
Multiple Airlines
Sat 5/239:45 am
BOS
- TYS
Nonstop2h 29m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$178
This Cheapflightsfares deal was found by Cheapflights users on 4/23. 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 5/236:45 am
TYS
- BOS
Nonstop2h 10m
Allegiant Air
Sat 5/309:45 am
BOS
- TYS
Nonstop2h 29m
Allegiant Air
Deal found 4/23![Allegiant Air logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 4/23. 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 5/317:30 am
TYS
- BOS
Nonstop2h 10m
Multiple Airlines
Wed 6/35:45 am
BOS
- TYS
1 stop12h 13m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$172
One-way flights from Knoxville to BostonSearch for one-way flight options from Knoxville to Boston. Find affordable one-way fares based on user searches. Data last updated April 28, 2026.
Search for one-way flight options from Knoxville to Boston. Find affordable one-way fares based on user searches. Data last updated April 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/236:45 am
TYS
- BOS
Nonstop2h 10m
Allegiant Air
Deal found 4/27![Allegiant Air logo]()
$66
This Kiwi.com deal was found by Cheapflights users on 4/23. 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 5/317:30 am
TYS
- BOS
Nonstop2h 10m
Allegiant Air
Deal found 4/23![Allegiant Air logo]()
$70
This Trip.com deal was found by Cheapflights users on 4/23. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/306:45 am
TYS
- BOS
Nonstop2h 10m
Allegiant Air
Deal found 4/23![Allegiant Air logo]()
$81
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/76:30 am
TYS
- BOS
Nonstop2h 16m
Allegiant Air
Deal found 4/26![Allegiant Air logo]()
$88
This Flightnetwork deal was found by Cheapflights users on 4/27. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/106:30 am
TYS
- BOS
Nonstop2h 16m
Allegiant Air
Deal found 4/27![Allegiant Air logo]()
$98
This Cheapflightsfares deal was found by Cheapflights users on 4/27. 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.
Thu 10/158:15 am
TYS
- BOS
Nonstop2h 12m
Allegiant Air
Deal found 4/27![Allegiant Air logo]()
$103
This Kiwi.com deal was found by Cheapflights users on 4/25. 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 8/209:30 am
TYS
- BOS
Nonstop2h 19m
Allegiant Air
Deal found 4/25![Allegiant Air logo]()
$104
This Delta deal was found by Cheapflights users on 4/23. 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 5/276:00 am
TYS
- BOS
1 stop4h 25m
Delta
Deal found 4/23![Delta logo]()
$106
This Cheapflightsfares deal was found by Cheapflights users on 4/26. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/147:30 am
TYS
- BOS
Nonstop2h 18m
Allegiant Air
Deal found 4/26![Allegiant Air logo]()
$114
This Kiwi.com deal was found by Cheapflights users on 4/24. 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.
Mon 6/112:55 pm
TYS
- BOS
2 stops18h 54m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$117
This Kiwi.com deal was found by Cheapflights users on 4/23. 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 5/289:19 pm
TYS
- BOS
1 stop26h 35m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$121
This Cheapflightsfares deal was found by Cheapflights users on 4/25. 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 6/276:30 am
TYS
- BOS
Nonstop2h 18m
Allegiant Air
Deal found 4/25![Allegiant Air logo]()
$125
Find 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 April 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $123 (Cheapflightsfares) |
One-way from | $66 (Kiwi.com) |
Popular in | November |
Cheapest in | May |
Average price | $266 |
Good round-trip deal | $160 or less |
Good one-way deal | $88 or less |
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 April 28, 2026.
Use the filters below to find and compare flights from Knoxville to Boston that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
KnoxvilleBoston
TYS - BOS
TYSBOS
Knoxville McGhee Tyson
Tue 9/8
6:10 am-1:24 pm
1 stop7h 14m
Boston Logan Intl
Mon 9/14
2:00 pm-8:33 pm
1 stop6h 33m
$306
KnoxvilleBoston
TYS - BOS
TYSBOS
Knoxville McGhee Tyson
Fri 8/7
7:10 am-5:05 pm
2 stops9h 55m
Boston Logan Intl
Mon 8/10
5:00 am-11:55 am
2 stops6h 55m
$345
KnoxvilleBoston
TYS - BOS
TYSBOS
Knoxville McGhee Tyson
Fri 5/22
5:45 am-1:12 pm
2 stops7h 27m
Boston Logan Intl
Mon 5/25
5:45 am-10:42 am
1 stop4h 57m
$359
KnoxvilleBoston
TYS - BOS
TYSBOS
Knoxville McGhee Tyson
Thu 6/4
12:35 pm-9:40 pm
2 stops9h 05m
Boston Logan Intl
Thu 6/18
1:10 pm-9:10 pm
2 stops8h 00m
$368
KnoxvilleBoston
TYS - BOS
TYSBOS
Knoxville McGhee Tyson
Wed 6/17
6:55 pm-11:30 pm
1 stop4h 35m
Boston Logan Intl
Sun 6/21
5:30 am-3:45 pm
2 stops10h 15m
$382
KnoxvilleBoston
TYS - BOS
TYSBOS
Knoxville McGhee Tyson
Mon 8/10
5:00 pm-10:27 pm
1 stop5h 27m
Boston Logan Intl
Fri 8/14
8:00 am-3:07 pm
1 stop7h 07m
$407
Quickest round-trip
KnoxvilleBoston
TYS - BOS
TYSBOS
Knoxville McGhee Tyson
Fri 7/24
7:43 pm-1:20 am
1 stop5h 37m
Boston Logan Intl
Sun 8/2
5:40 am-10:20 am
1 stop4h 40m
$407
KnoxvilleBoston
TYS - BOS
TYSBOS
Knoxville McGhee Tyson
Fri 7/31
2:20 pm-12:05 am
2 stops9h 45m
Boston Logan Intl
Sun 8/2
5:30 am-3:45 pm
2 stops10h 15m
$416
KnoxvilleBoston
TYS - BOS
TYSBOS
Knoxville McGhee Tyson
Tue 9/8
5:45 am-12:47 pm
2 stops7h 02m
Boston Logan Intl
Mon 9/14
3:13 pm-8:48 pm
1 stop5h 35m
$434
KnoxvilleBoston
TYS - BOS
TYSBOS
Knoxville McGhee Tyson
Fri 7/3
12:35 pm-12:05 am
2 stops11h 30m
Boston Logan Intl
Mon 7/6
5:45 am-3:45 pm
2 stops10h 00m
$437
Showing 1-10 of 24 resultsSorted by cheapest first
Compare providers for flights from Knoxville to Boston
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 Knoxville to Boston in April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Knoxville-Boston flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Knoxville-Boston flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Knoxville-Boston flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Knoxville-Boston 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 Knoxville-Boston 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 Knoxville to Boston
Have a flexible travel schedule? Discover the best time to fly to Boston from Knoxville with our price prediction graph.
TYS-BOS
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
Prices
Delays
How far ahead should I book a flight from Knoxville to Boston?
The best time to book flights from Knoxville to Boston is 72 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, May is the cheapest month in which you can book a flight from Knoxville to Boston (average of $175). Flying from Knoxville to Boston in November is currently the most expensive (average of $297). 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 April 28, 2026.
When flying from Knoxville to Boston, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
How often are flights from Knoxville to Boston delayed?
About 6% of weekly flights between Knoxville and Boston have experienced delays in the past year, with the average delay time being 132 minutes.
What is the most punctual flight time for Knoxville to Boston flights?
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Monday tends to have the lowest number of delays on this route, whereas Sunday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Knoxville to Boston flights?
Over the last year, Allegiant Air have had the lowest number of delays on this route, with just 6% of flights being delayed.
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 April 28, 2026.
Read through reviews of airlines operating flights from Knoxville to Boston, such as Southwest,Delta, andUnited Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Overall
8.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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.
Traveling to a place near Boston?
Book flights to Boston if you plan to visit one of these locationsMedford
Cambridge
Concord
Hampton Beach
Watertown
Brockton
Seekonk
Cranston
Chelsea
Warwick
Peabody
Seabrook
York Beach
Londonderry
Swansea
Old Orchard Beach
Quincy
Waltham
Lowell
Braintree
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Other flights to Boston
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Knoxville and Boston flights
Browse other Knoxville and Boston flight options. Last updated on April 28, 2026.
Other flights from Knoxville
Browse through other flights departing from Knoxville. Flights are based on user searches made on Cheapflights and were last updated on April 28, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 5 airlines flying from Knoxville to Boston
Discover the top 5 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 April 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$88 | Average$184 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$172 | Average$346 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$198 | Average$408 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$248 | Average$381 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$303 | Average$392 | FlexibilityNo cancel fee | On-time63% |