$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 11/7. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — BOS
Aug 29 — Sep 51
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 February or May, booked 12 days in advance, depart on a Tuesday or Thursday and return on a Friday
Cheap flight deals from Knoxville to Boston
Cheapest
Best
Last-minute
One-way
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 July 30, 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 July 30, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 9/59:30 am
TYS
- BOS
Nonstop2h 15m
Allegiant Air
Thu 9/1010:15 am
BOS
- TYS
Nonstop2h 26m
Allegiant Air
Deal found 7/29![Allegiant Air logo]()
$180
This Cheapflightsfares deal was found by Cheapflights users on 7/25. 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 8/229:30 am
TYS
- BOS
Nonstop2h 19m
Allegiant Air
Sat 8/2912:39 pm
BOS
- TYS
Nonstop2h 28m
Allegiant Air
Deal found 7/25![Allegiant Air logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 9/69:30 am
TYS
- BOS
Nonstop2h 15m
Allegiant Air
Sat 9/1212:35 pm
BOS
- TYS
Nonstop2h 26m
Allegiant Air
Deal found 7/29![Allegiant Air logo]()
$188
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 9/177:10 am
TYS
- BOS
Nonstop2h 15m
Allegiant Air
Sat 9/1912:35 pm
BOS
- TYS
Nonstop2h 26m
Allegiant Air
Deal found 7/29![Allegiant Air logo]()
$195
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/39:30 am
TYS
- BOS
Nonstop2h 15m
Allegiant Air
Thu 9/1010:15 am
BOS
- TYS
Nonstop2h 26m
Allegiant Air
Deal found 7/26![Allegiant Air logo]()
$197
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 9/39:30 am
TYS
- BOS
Nonstop2h 15m
Allegiant Air
Sat 9/1212:35 pm
BOS
- TYS
Nonstop2h 26m
Allegiant Air
Deal found 7/29![Allegiant Air logo]()
$198
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/16:45 am
TYS
- BOS
Nonstop2h 20m
Allegiant Air
Sat 8/2212:39 pm
BOS
- TYS
Nonstop2h 28m
Allegiant Air
Deal found 7/28![Allegiant Air logo]()
$199
This Cheapflightsfares deal was found by Cheapflights users on 7/29. 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 9/269:30 am
TYS
- BOS
Nonstop2h 15m
Allegiant Air
Sat 10/39:02 am
BOS
- TYS
Nonstop2h 30m
Allegiant Air
Deal found 7/29![Allegiant Air logo]()
$205
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/99:35 pm
TYS
- BOS
1 stop11h 54m
Allegiant Air
Sat 10/249:02 am
BOS
- TYS
Nonstop2h 30m
Allegiant Air
Deal found 7/28![Allegiant Air logo]()
$206
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 9/138:10 am
TYS
- BOS
1 stop27h 25m
Allegiant Air
Sat 9/1912:35 pm
BOS
- TYS
Nonstop2h 26m
Allegiant Air
Deal found 7/29![Allegiant Air logo]()
$213
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 July 30, 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 July 30, 2026.
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.
Thu 11/267:06 am
TYS
- BOS
1 stop4h 49m
Delta
Tue 12/19:05 am
BOS
- TYS
1 stop4h 50m
Delta
Deal found 7/26![Delta logo]()
$271
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/65:45 am
TYS
- BOS
1 stop4h 33m
United Airlines
Wed 9/96:00 am
BOS
- TYS
2 stops8h 37m
United Airlines
Deal found 7/28![United Airlines logo]()
$277
This Southwest deal was found by Cheapflights users on 7/29. 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 8/267:00 am
TYS
- BOS
2 stops9h 00m
Southwest
Wed 9/28:30 am
BOS
- TYS
2 stops11h 20m
Southwest
Deal found 7/29![Southwest logo]()
$315
This Delta deal was found by Cheapflights users on 7/29. 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 9/16:00 am
TYS
- BOS
1 stop6h 22m
Delta
Sun 9/66:50 am
BOS
- TYS
1 stop5h 38m
Delta
Deal found 7/29![Delta logo]()
$272
This Delta deal was found by Cheapflights users on 7/29. 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 9/611:00 am
TYS
- BOS
1 stop4h 29m
Delta
Sat 9/125:40 am
BOS
- TYS
1 stop4h 38m
Delta
Deal found 7/29![Delta logo]()
$272
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.
Fri 9/117:20 pm
TYS
- BOS
1 stop4h 39m
United Airlines
Sun 9/135:45 am
BOS
- TYS
1 stop4h 52m
United Airlines
Deal found 7/26![United Airlines logo]()
$309
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/301:50 pm
TYS
- BOS
2 stops10h 15m
Southwest
Mon 11/25:35 am
BOS
- TYS
2 stops9h 25m
Southwest
Deal found 7/27![Southwest logo]()
$322
This Delta deal was found by Cheapflights users on 7/25. 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.
Sat 9/265:45 pm
TYS
- BOS
1 stop7h 32m
Delta
Sat 10/35:30 am
BOS
- TYS
1 stop7h 28m
Delta
Deal found 7/25![Delta logo]()
$299
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Thu 9/245:45 am
TYS
- BOS
1 stop4h 47m
United Airlines
Mon 9/285:45 am
BOS
- TYS
1 stop4h 52m
United Airlines
Deal found 7/29![United Airlines logo]()
$329
This Southwest deal was found by Cheapflights users on 7/29. 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 9/27:00 am
TYS
- BOS
2 stops7h 40m
Southwest
Sun 9/66:40 am
BOS
- TYS
2 stops9h 25m
Southwest
Deal found 7/29![Southwest logo]()
$335
This Delta deal was found by Cheapflights users on 7/25. 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.
Fri 9/44:38 pm
TYS
- BOS
1 stop7h 03m
Delta
Sun 9/68:55 am
BOS
- TYS
1 stop6h 35m
Delta
Deal found 7/25![Delta logo]()
$314
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 9/255:20 pm
TYS
- BOS
1 stop5h 13m
Delta
Sun 9/275:30 am
BOS
- TYS
1 stop6h 36m
Delta
Deal found 7/26![Delta logo]()
$336
Last-minute flights from Knoxville to BostonDiscover last-minute flight deals from Knoxville to Boston. Data last updated July 30, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to Boston. Data last updated July 30, 2026 and is based on user searches.
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/16:45 am
TYS
- BOS
Nonstop2h 20m
Allegiant Air
Sat 8/2212:39 pm
BOS
- TYS
Nonstop2h 28m
Allegiant Air
Deal found 7/28![Allegiant Air logo]()
$199
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.
Thu 8/209:30 am
TYS
- BOS
Nonstop2h 19m
Allegiant Air
Sat 8/2212:39 pm
BOS
- TYS
Nonstop2h 28m
Allegiant Air
Deal found 7/27![Allegiant Air logo]()
$237
This Cheapflightsfares 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 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 7/28![Allegiant Air logo]()
$261
This Cheapflightsfares deal was found by Cheapflights users on 7/25. 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 8/229:30 am
TYS
- BOS
Nonstop2h 19m
Allegiant Air
Sat 8/2912:39 pm
BOS
- TYS
Nonstop2h 28m
Allegiant Air
Deal found 7/25![Allegiant Air logo]()
$185
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:56 pm
TYS
- BOS
2 stops37h 45m
Multiple Airlines
Sat 8/2912:39 pm
BOS
- TYS
Nonstop2h 28m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$245
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/238:10 am
TYS
- BOS
1 stop27h 58m
Allegiant Air
Thu 9/312:35 pm
BOS
- TYS
Nonstop2h 26m
Allegiant Air
Deal found 7/26![Allegiant Air logo]()
$272
This United Airlines deal was found by Cheapflights users on 7/29. 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.
Wed 8/266:02 pm
TYS
- BOS
1 stop7h 09m
United Airlines
Wed 9/22:28 pm
BOS
- TYS
1 stop5h 56m
United Airlines
Deal found 7/29![United Airlines logo]()
$271
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/279:30 am
TYS
- BOS
Nonstop2h 19m
Allegiant Air
Sun 8/3012:39 pm
BOS
- TYS
Nonstop2h 28m
Allegiant Air
Deal found 7/28![Allegiant Air logo]()
$232
This Kiwi.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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/279:30 am
TYS
- BOS
Nonstop2h 19m
Allegiant Air
Thu 9/312:35 pm
BOS
- TYS
Nonstop2h 26m
Allegiant Air
Deal found 7/26![Allegiant Air logo]()
$241
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 July 30, 2026.
Search for one-way flight options from Knoxville to Boston. Find affordable one-way fares based on user searches. Data last updated July 30, 2026.
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/76:00 am
TYS
- BOS
Nonstop2h 19m
Allegiant Air
Deal found 7/26![Allegiant Air logo]()
$50
This Trip.com deal was found by Cheapflights users on 7/25. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/299:30 am
TYS
- BOS
Nonstop2h 19m
Allegiant Air
Deal found 7/25![Allegiant Air logo]()
$64
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/59:30 am
TYS
- BOS
Nonstop2h 15m
Allegiant Air
Deal found 7/28![Allegiant Air logo]()
$67
This Super.com 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/156:45 am
TYS
- BOS
Nonstop2h 20m
Allegiant Air
Deal found 7/27![Allegiant Air logo]()
$74
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/107:10 am
TYS
- BOS
Nonstop2h 15m
Allegiant Air
Deal found 7/27![Allegiant Air logo]()
$94
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.
Thu 9/39:30 am
TYS
- BOS
Nonstop2h 15m
Allegiant Air
Deal found 7/27![Allegiant Air logo]()
$103
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 8/167:30 am
TYS
- BOS
Nonstop2h 20m
Allegiant Air
Deal found 7/29![Allegiant Air logo]()
$116
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/99:35 pm
TYS
- BOS
1 stop11h 54m
Allegiant Air
Deal found 7/28![Allegiant Air logo]()
$124
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.
Thu 8/137:30 am
TYS
- BOS
Nonstop2h 20m
Allegiant Air
Deal found 7/27![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 July 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $180 (Kiwi.com) |
One-way from | $50 (Cheapflightsfares) |
Popular in | June |
Cheapest in | February |
Average price | $321 |
Good round-trip deal | $180 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 July 30, 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
Thu 11/26
7:06 am-11:55 am
1 stop4h 49m
Boston Logan Intl
Tue 12/1
9:05 am-1:55 pm
1 stop4h 50m
$271
KnoxvilleBoston
TYS - BOS
TYSBOS
Knoxville McGhee Tyson
Tue 9/1
6:00 am-12:22 pm
1 stop6h 22m
Boston Logan Intl
Sun 9/6
6:50 am-12:28 pm
1 stop5h 38m
$272
Quickest round-trip
KnoxvilleBoston
TYS - BOS
TYSBOS
Knoxville McGhee Tyson
Sun 9/6
11:00 am-3:29 pm
1 stop4h 29m
Boston Logan Intl
Sat 9/12
5:40 am-10:18 am
1 stop4h 38m
$272
KnoxvilleBoston
TYS - BOS
TYSBOS
Knoxville McGhee Tyson
Sun 9/6
5:45 am-10:18 am
1 stop4h 33m
Boston Logan Intl
Wed 9/9
6:00 am-2:37 pm
2 stops8h 37m
$277
KnoxvilleBoston
TYS - BOS
TYSBOS
Knoxville McGhee Tyson
Sat 9/26
5:45 pm-1:17 am
1 stop7h 32m
Boston Logan Intl
Sat 10/3
5:30 am-12:58 pm
1 stop7h 28m
$299
KnoxvilleBoston
TYS - BOS
TYSBOS
Knoxville McGhee Tyson
Fri 9/11
7:20 pm-11:59 pm
1 stop4h 39m
Boston Logan Intl
Sun 9/13
5:45 am-10:37 am
1 stop4h 52m
$309
KnoxvilleBoston
TYS - BOS
TYSBOS
Knoxville McGhee Tyson
Fri 9/4
4:38 pm-11:41 pm
1 stop7h 03m
Boston Logan Intl
Sun 9/6
8:55 am-3:30 pm
1 stop6h 35m
$314
KnoxvilleBoston
TYS - BOS
TYSBOS
Knoxville McGhee Tyson
Wed 8/26
7:00 am-4:00 pm
2 stops9h 00m
Boston Logan Intl
Wed 9/2
8:30 am-7:50 pm
2 stops11h 20m
$315
KnoxvilleBoston
TYS - BOS
TYSBOS
Knoxville McGhee Tyson
Fri 10/30
1:50 pm-12:05 am
2 stops10h 15m
Boston Logan Intl
Mon 11/2
5:35 am-3:00 pm
2 stops9h 25m
$322
KnoxvilleBoston
TYS - BOS
TYSBOS
Knoxville McGhee Tyson
Thu 9/24
5:45 am-10:32 am
1 stop4h 47m
Boston Logan Intl
Mon 9/28
5:45 am-10:37 am
1 stop4h 52m
$329
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 July.
| 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 11 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, February is the cheapest month in which you can book a flight from Knoxville to Boston (average of $168). Flying from Knoxville to Boston in June is currently the most expensive (average of $356). 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 30, 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 7% of weekly flights between Knoxville and Boston have experienced delays in the past year, with the average delay time being 128 minutes.
What is the most punctual flight time for Knoxville to Boston flights?
Historically, flights departing at night 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?
Saturday tends to have the lowest number of delays on this route, whereas Monday 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 July 30, 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.
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
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 locationsWaltham
Cambridge
Concord
Randolph
Brockton
Seekonk
Hampton Beach
Cranston
Warwick
Peabody
Dedham
Auburn
York Beach
Chelsea
Londonderry
Swansea
Fitchburg
North Falmouth
Braintree
Revere
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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 July 30, 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 July 30, 2026.
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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 July 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$98 | Average$218 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$157 | Average$334 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$230 | Average$436 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$248 | Average$389 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$303 | Average$424 | FlexibilityNo cancel fee | On-time63% |