$138+ Cheap flights from Boise to Knoxville (BOI - TYS)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — TYS
Apr 12 — Apr 191
Round-trip
1 adult, Economy
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Find cheap flights from Boise to Knoxville with Cheapflights
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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
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Boise to Knoxville
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Best
Last-minute
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Cheapest flights from Boise to KnoxvilleExplore the most affordable flight options available from Boise to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 13, 2026.
Explore the most affordable flight options available from Boise to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 13, 2026.
This Flightnetwork deal was found by Cheapflights users on 3/12. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/241:25 pm
BOI
- TYS
1 stop28h 08m
Frontier
Mon 6/18:32 pm
TYS
- BOI
1 stop17h 58m
Frontier
Deal found 3/12![Frontier logo]()
$280
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 5/2812:21 pm
BOI
- TYS
1 stop28h 52m
Frontier
Mon 6/18:08 pm
TYS
- BOI
1 stop17h 08m
Frontier
Deal found 3/9![Frontier logo]()
$289
This Kiwi.com deal was found by Cheapflights users on 3/12. 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 6/21:25 pm
BOI
- TYS
1 stop28h 08m
Frontier
Wed 6/108:08 pm
TYS
- BOI
1 stop17h 08m
Frontier
Deal found 3/12![Frontier logo]()
$295
This Kiwi.com deal was found by Cheapflights users on 3/12. 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.
Sun 5/241:25 pm
BOI
- TYS
1 stop28h 08m
Frontier
Wed 6/38:32 pm
TYS
- BOI
1 stop17h 58m
Frontier
Deal found 3/12![Frontier logo]()
$306
This Kiwi.com deal was found by Cheapflights users on 3/12. 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 5/261:25 pm
BOI
- TYS
1 stop28h 08m
Frontier
Mon 6/18:32 pm
TYS
- BOI
1 stop17h 58m
Frontier
Deal found 3/12![Frontier logo]()
$307
This Kiwi.com deal was found by Cheapflights users on 3/12. 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.
Sun 5/241:25 pm
BOI
- TYS
1 stop28h 08m
Multiple Airlines
Thu 6/47:00 am
TYS
- BOI
1 stop7h 30m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$313
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 5/2812:21 pm
BOI
- TYS
1 stop28h 52m
Frontier
Wed 6/38:08 pm
TYS
- BOI
1 stop17h 08m
Frontier
Deal found 3/9![Frontier logo]()
$321
This Kiwi.com deal was found by Cheapflights users on 3/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/21:25 pm
BOI
- TYS
1 stop28h 08m
Frontier
Mon 6/158:08 pm
TYS
- BOI
1 stop17h 08m
Frontier
Deal found 3/11![Frontier logo]()
$329
Best flights from Boise to KnoxvilleDiscover carefully curated flight deals from Boise to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 13, 2026.
Discover carefully curated flight deals from Boise to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 13, 2026.
This Southwest deal was found by Cheapflights users on 3/8. 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.
Mon 3/308:15 pm
BOI
- TYS
2 stops13h 35m
Southwest
Sat 4/44:55 pm
TYS
- BOI
2 stops11h 00m
Southwest
Deal found 3/8![Southwest logo]()
$395
This Delta deal was found by Cheapflights users on 3/8. 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 4/1311:35 pm
BOI
- TYS
1 stop7h 47m
Delta
Sun 4/194:38 pm
TYS
- BOI
1 stop7h 50m
Delta
Deal found 3/8![Delta logo]()
$408
This United Airlines deal was found by Cheapflights users on 3/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/145:00 am
BOI
- TYS
1 stop8h 06m
United Airlines
Sat 4/184:30 pm
TYS
- BOI
1 stop7h 04m
United Airlines
Deal found 3/12![United Airlines logo]()
$459
This Southwest deal was found by Cheapflights users on 3/8. 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 4/117:05 am
BOI
- TYS
2 stops10h 30m
Southwest
Sat 4/1812:20 pm
TYS
- BOI
2 stops11h 45m
Southwest
Deal found 3/8![Southwest logo]()
$418
This Southwest deal was found by Cheapflights users on 3/8. 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 3/185:40 am
BOI
- TYS
2 stops12h 25m
Southwest
Tue 3/312:25 pm
TYS
- BOI
2 stops11h 25m
Southwest
Deal found 3/8![Southwest logo]()
$458
Last-minute flights from Boise to KnoxvilleDiscover last-minute flight deals from Boise to Knoxville. Data last updated March 13, 2026 and is based on user searches.
Discover last-minute flight deals from Boise to Knoxville. Data last updated March 13, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 3/8. 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 3/3011:30 pm
BOI
- TYS
1 stop7h 46m
Delta
Wed 4/85:10 pm
TYS
- BOI
1 stop7h 25m
Delta
Deal found 3/8![Delta logo]()
$379
This Delta deal was found by Cheapflights users on 3/8. 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 3/306:15 pm
BOI
- TYS
2 stops13h 01m
Delta
Tue 4/75:40 am
TYS
- BOI
1 stop8h 58m
Delta
Deal found 3/8![Delta logo]()
$384
This Southwest deal was found by Cheapflights users on 3/8. 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.
Mon 3/308:15 pm
BOI
- TYS
2 stops13h 35m
Southwest
Sat 4/44:55 pm
TYS
- BOI
2 stops11h 00m
Southwest
Deal found 3/8![Southwest logo]()
$395
This Delta deal was found by Cheapflights users on 3/8. 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 3/3011:30 pm
BOI
- TYS
1 stop7h 46m
Delta
Fri 4/107:10 am
TYS
- BOI
1 stop7h 28m
Delta
Deal found 3/8![Delta logo]()
$408
This American Airlines deal was found by Cheapflights users on 3/10. 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.
Wed 4/11:39 pm
BOI
- TYS
1 stop8h 12m
American Airlines
Wed 4/84:09 pm
TYS
- BOI
1 stop8h 45m
American Airlines
Deal found 3/10![American Airlines logo]()
$359
This American Airlines deal was found by Cheapflights users on 3/8. 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.
Wed 4/16:37 pm
BOI
- TYS
2 stops12h 05m
American Airlines
Tue 4/75:00 am
TYS
- BOI
2 stops9h 49m
American Airlines
Deal found 3/8![American Airlines logo]()
$409
This Southwest deal was found by Cheapflights users on 3/10. 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 4/1111:00 am
BOI
- TYS
1 stop6h 35m
Southwest
Sat 4/186:40 am
TYS
- BOI
2 stops11h 35m
Southwest
Deal found 3/10![Southwest logo]()
$390
This United Airlines deal was found by Cheapflights users on 3/10. 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 4/115:00 am
BOI
- TYS
1 stop8h 06m
United Airlines
Sat 4/187:00 am
TYS
- BOI
1 stop6h 49m
United Airlines
Deal found 3/10![United Airlines logo]()
$399
One-way flights from Boise to KnoxvilleSearch for one-way flight options from Boise to Knoxville. Find affordable one-way fares based on user searches. Data last updated March 13, 2026.
Search for one-way flight options from Boise to Knoxville. Find affordable one-way fares based on user searches. Data last updated March 13, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/21:25 pm
BOI
- TYS
1 stop28h 08m
Frontier
Deal found 3/11![Frontier logo]()
$138
This United Airlines deal was found by Cheapflights users on 3/9. 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 3/318:20 am
BOI
- TYS
1 stop6h 32m
United Airlines
Deal found 3/9![United Airlines logo]()
$180
This American Airlines deal was found by Cheapflights users on 3/9. 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 3/316:33 pm
BOI
- TYS
2 stops12h 09m
American Airlines
Deal found 3/9![American Airlines logo]()
$185
This American Airlines deal was found by Cheapflights users on 3/9. 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.
Mon 3/301:39 pm
BOI
- TYS
1 stop8h 12m
American Airlines
Deal found 3/9![American Airlines logo]()
$190
This Flightnetwork deal was found by Cheapflights users on 3/11. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/311:25 pm
BOI
- TYS
1 stop28h 08m
Frontier
Deal found 3/11![Frontier logo]()
$193
This Delta deal was found by Cheapflights users on 3/9. 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 3/306:15 pm
BOI
- TYS
2 stops13h 01m
Delta
Deal found 3/9![Delta logo]()
$195
This United Airlines deal was found by Cheapflights users on 3/9. 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 4/710:35 am
BOI
- TYS
2 stops11h 06m
United Airlines
Deal found 3/9![United Airlines logo]()
$200
This Southwest deal was found by Cheapflights users on 3/9. 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.
Mon 4/68:15 pm
BOI
- TYS
2 stops13h 45m
Southwest
Deal found 3/9![Southwest logo]()
$201
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 3/306:03 pm
BOI
- TYS
3 stops46h 15m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$212
This Delta deal was found by Cheapflights users on 3/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/308:45 am
BOI
- TYS
2 stops10h 40m
Delta
Deal found 3/11![Delta logo]()
$220
This Delta deal was found by Cheapflights users on 3/8. 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 5/138:45 am
BOI
- TYS
2 stops10h 40m
Delta
Deal found 3/8![Delta logo]()
$224
This Kiwi.com deal was found by Cheapflights users on 3/8. 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 3/2212:15 pm
BOI
- TYS
1 stop25h 10m
Frontier
Deal found 3/8![Frontier logo]()
$229
Find flight deals from Boise to Knoxville
Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) 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 March 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $280 (Flightnetwork) |
One-way from | $138 (Kiwi.com) |
Popular in | December |
Cheapest in | September |
Average price | $551 |
Cheapflights Fare Finder
Customize your flight search to find flights from Boise to Knoxville that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 13, 2026.
Use the filters below to find and compare flights from Boise to Knoxville that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BoiseKnoxville
BOI - TYS
BOITYS
Boise Air Term. Gowen Fld
Mon 3/30
8:15 pm-11:50 am
2 stops13h 35m
Knoxville McGhee Tyson
Sat 4/4
4:55 pm-1:55 am
2 stops11h 00m
$395
BoiseKnoxville
BOI - TYS
BOITYS
Boise Air Term. Gowen Fld
Mon 4/13
11:35 pm-9:22 am
1 stop7h 47m
Knoxville McGhee Tyson
Sun 4/19
4:38 pm-10:28 pm
1 stop7h 50m
$408
BoiseKnoxville
BOI - TYS
BOITYS
Boise Air Term. Gowen Fld
Sat 4/11
7:05 am-7:35 pm
2 stops10h 30m
Knoxville McGhee Tyson
Sat 4/18
12:20 pm-10:05 pm
2 stops11h 45m
$418
BoiseKnoxville
BOI - TYS
BOITYS
Boise Air Term. Gowen Fld
Wed 3/18
5:40 am-8:05 pm
2 stops12h 25m
Knoxville McGhee Tyson
Tue 3/31
2:25 pm-11:50 pm
2 stops11h 25m
$458
Quickest round-trip
BoiseKnoxville
BOI - TYS
BOITYS
Boise Air Term. Gowen Fld
Tue 4/14
5:00 am-3:06 pm
1 stop8h 06m
Knoxville McGhee Tyson
Sat 4/18
4:30 pm-9:34 pm
1 stop7h 04m
$459
Cheapest one-way
BoiseKnoxville
BOI - TYS
BOITYS
Boise Air Term. Gowen Fld
Tue 4/7
1:41 pm-11:56 pm
1 stop8h 15m
$180
BoiseKnoxville
BOI - TYS
BOITYS
Boise Air Term. Gowen Fld
Tue 3/31
8:20 am-4:52 pm
1 stop6h 32m
$180
BoiseKnoxville
BOI - TYS
BOITYS
Boise Air Term. Gowen Fld
Mon 4/6
11:40 pm-9:16 am
1 stop7h 36m
$190
BoiseKnoxville
BOI - TYS
BOITYS
Boise Air Term. Gowen Fld
Mon 3/30
1:39 pm-11:51 pm
1 stop8h 12m
$190
BoiseKnoxville
BOI - TYS
BOITYS
Boise Air Term. Gowen Fld
Tue 4/7
10:35 am-11:41 pm
2 stops11h 06m
$200
Showing 1-10 of 17 resultsSorted by cheapest first
Compare providers for flights from Boise 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 Boise to Knoxville in March.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Boise-Knoxville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boise-Knoxville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boise-Knoxville flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Boise-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 Boise-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 Boise to Knoxville
Have a flexible travel schedule? Discover the best time to fly to Knoxville from Boise with our price prediction graph.
BOI-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 Boise to Knoxville
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 March 13, 2026.
See what other customers who have flown with Alaska Airlines,Delta, andUnited Airlines from Boise to Knoxville have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.8
Boarding
8.1
Overall
8.0
Entertainment
7.0
Crew
8.5
Food
7.1
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Boarding
8.1
Overall
8.0
Entertainment
7.0
Crew
8.5
Food
7.1
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Boarding
8.1
Overall
8.0
Entertainment
7.0
Crew
8.5
Food
7.1
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Boarding
8.1
Overall
8.0
Entertainment
7.0
Crew
8.5
Food
7.1
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Boarding
8.1
Overall
8.0
Entertainment
7.0
Crew
8.5
Food
7.1
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Related info for your journey
Find useful and relevant information for your journey from Boise to Knoxville. 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 Knoxville?
Book flights to Knoxville if you plan to visit one of these locationsCherokee
Crossville
Corbin
Morristown
Bryson City
Alcoa
Murphy
Oak Ridge
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Other flights to Knoxville
Explore flights to Knoxville departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on March 13, 2026.
Boise and Knoxville flights
Browse other Boise and Knoxville flight options. Last updated on March 13, 2026.
Other flights from Boise
Browse through other flights departing from Boise. Flights are based on user searches made on Cheapflights and were last updated on March 13, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Boise to Knoxville
Discover the top 4 airlines that operate flights from Boise to Knoxville. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$269 | Average$502 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$288 | Average$433 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$358 | Average$553 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$458 | Average$647 | FlexibilityNo cancel fee | On-time75% |