$168+ Cheap flights from Knoxville to Boise (TYS - BOI)
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 10/12. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — BOI
Sep 13 — Sep 201
Round-trip
1 adult, Economy
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Find cheap flights from Knoxville to Boise 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.Cheap flight deals from Knoxville to Boise
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Best
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Cheapest flights from Knoxville to BoiseExplore the most affordable flight options available from Knoxville to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2026.
Explore the most affordable flight options available from Knoxville to Boise. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2026.
This American Airlines deal was found by Cheapflights users on 8/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/266:00 am -
1 stop9h 00m
Tue 10/133:24 pm -
1 stop6h 35m
Deal found 8/11![American Airlines logo]()
$277
This United Airlines deal was found by Cheapflights users on 8/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/94:50 pm -
1 stop7h 50m
Sat 9/125:00 am -
1 stop8h 46m
Deal found 8/13![United Airlines logo]()
$278
This American Airlines deal was found by Cheapflights users on 8/10. 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.
Tue 9/296:00 am -
2 stops13h 03m
Tue 10/133:24 pm -
1 stop6h 35m
Deal found 8/10![American Airlines logo]()
$282
This Delta deal was found by Cheapflights users on 8/11. 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.
Wed 9/236:20 pm -
1 stop7h 39m
Mon 10/121:40 pm -
1 stop8h 19m
Deal found 8/11![Delta logo]()
$330
This Kiwi.com deal was found by Cheapflights users on 8/9. 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.
Sun 9/67:00 am -
1 stop6h 29m
Thu 9/102:50 pm -
2 stops20h 37m
Deal found 8/9![Multiple Airlines logo]()
$350
This Southwest deal was found by Cheapflights users on 8/13. 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.
Wed 9/93:00 pm -
2 stops9h 30m
Sat 9/128:30 am -
2 stops7h 15m
Deal found 8/13![Southwest logo]()
$364
This Delta deal was found by Cheapflights users on 8/11. 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.
Wed 9/236:20 pm -
1 stop7h 39m
Wed 10/141:40 pm -
1 stop6h 42m
Deal found 8/11![Delta logo]()
$368
This United Airlines deal was found by Cheapflights users on 8/10. 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.
Fri 9/114:50 pm -
1 stop6h 55m
Sat 9/195:00 am -
1 stop8h 46m
Deal found 8/10![United Airlines logo]()
$370
Best flights from Knoxville to BoiseDiscover carefully curated flight deals from Knoxville to Boise that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 14, 2026.
Discover carefully curated flight deals from Knoxville to Boise that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 14, 2026.
This American Airlines deal was found by Cheapflights users on 8/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/266:00 am -
1 stop9h 00m
Tue 10/133:24 pm -
1 stop6h 35m
Deal found 8/12![American Airlines logo]()
$277
This Southwest deal was found by Cheapflights users on 8/13. 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.
Wed 9/93:00 pm -
2 stops9h 30m
Sat 9/128:30 am -
2 stops7h 15m
Deal found 8/13![Southwest logo]()
$364
This United Airlines deal was found by Cheapflights users on 8/10. 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.
Fri 9/114:50 pm -
1 stop6h 55m
Sat 9/195:00 am -
1 stop8h 46m
Deal found 8/10![United Airlines logo]()
$370
This Kiwi.com deal was found by Cheapflights users on 8/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/67:00 am -
1 stop6h 29m
Thu 9/102:50 pm -
2 stops20h 37m
Deal found 8/10![Multiple Airlines logo]()
$371
This Delta deal was found by Cheapflights users on 8/13. 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 9/175:40 am -
1 stop9h 21m
Sun 9/2011:10 pm -
1 stop8h 19m
Deal found 8/13![Delta logo]()
$460
This United Airlines deal was found by Cheapflights users on 8/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2610:42 am -
2 stops12h 57m
Tue 10/136:50 pm -
2 stops12h 55m
Deal found 8/11![United Airlines logo]()
$387
This American Airlines deal was found by Cheapflights users on 8/9. 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 9/298:00 am -
1 stop8h 31m
Tue 10/132:41 pm -
1 stop6h 37m
Deal found 8/9![American Airlines logo]()
$429
This Southwest deal was found by Cheapflights users on 8/9. 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.
Sat 12/57:10 am -
2 stops15h 15m
Sun 12/65:00 am -
2 stops11h 45m
Deal found 8/9![Southwest logo]()
$464
This American Airlines deal was found by Cheapflights users on 8/9. 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.
Sat 12/52:55 pm -
1 stop9h 47m
Sun 12/612:19 pm -
1 stop9h 13m
Deal found 8/9![American Airlines logo]()
$448
This Southwest deal was found by Cheapflights users on 8/10. 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.
Fri 9/114:50 pm -
2 stops9h 05m
Sat 9/196:10 am -
2 stops9h 35m
Deal found 8/10![Southwest logo]()
$475
This American Airlines deal was found by Cheapflights users on 8/9. 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.
Fri 1/85:25 pm -
1 stop7h 07m
Thu 1/143:24 pm -
1 stop6h 35m
Deal found 8/9![American Airlines logo]()
$467
Last-minute flights from Knoxville to BoiseDiscover last-minute flight deals from Knoxville to Boise. Data last updated August 14, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to Boise. Data last updated August 14, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/9. 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.
Sun 9/67:00 am -
1 stop6h 29m
Thu 9/102:50 pm -
2 stops20h 37m
Deal found 8/9![Multiple Airlines logo]()
$350
This United Airlines deal was found by Cheapflights users on 8/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/94:50 pm -
1 stop7h 50m
Sat 9/125:00 am -
1 stop8h 46m
Deal found 8/13![United Airlines logo]()
$278
This Southwest deal was found by Cheapflights users on 8/13. 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.
Wed 9/93:00 pm -
2 stops9h 30m
Sat 9/128:30 am -
2 stops7h 15m
Deal found 8/13![Southwest logo]()
$364
This United Airlines deal was found by Cheapflights users on 8/10. 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.
Fri 9/114:50 pm -
1 stop6h 55m
Sat 9/195:00 am -
1 stop8h 46m
Deal found 8/10![United Airlines logo]()
$370
This Delta deal was found by Cheapflights users on 8/11. 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.
Wed 9/236:20 pm -
1 stop7h 39m
Mon 10/121:40 pm -
1 stop8h 19m
Deal found 8/11![Delta logo]()
$330
This Delta deal was found by Cheapflights users on 8/11. 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.
Wed 9/236:20 pm -
1 stop7h 39m
Wed 10/141:40 pm -
1 stop6h 42m
Deal found 8/11![Delta logo]()
$368
This American Airlines deal was found by Cheapflights users on 8/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/266:00 am -
1 stop9h 00m
Tue 10/133:24 pm -
1 stop6h 35m
Deal found 8/11![American Airlines logo]()
$277
This American Airlines deal was found by Cheapflights users on 8/10. 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.
Tue 9/296:00 am -
2 stops13h 03m
Tue 10/133:24 pm -
1 stop6h 35m
Deal found 8/10![American Airlines logo]()
$282
One-way flights from Knoxville to BoiseSearch for one-way flight options from Knoxville to Boise. Find affordable one-way fares based on user searches. Data last updated August 14, 2026.
Search for one-way flight options from Knoxville to Boise. Find affordable one-way fares based on user searches. Data last updated August 14, 2026.
This American Airlines deal was found by Cheapflights users on 8/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/126:00 am -
1 stop7h 24m
Deal found 8/12![American Airlines logo]()
$168
This Southwest deal was found by Cheapflights users on 8/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/125:30 pm -
2 stops9h 30m
Deal found 8/12![Southwest logo]()
$239
This United Airlines deal was found by Cheapflights users on 8/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/236:00 am -
1 stop7h 26m
Deal found 8/11![United Airlines logo]()
$469
This United Airlines deal was found by Cheapflights users on 8/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/224:50 pm -
1 stop6h 55m
Deal found 8/11![United Airlines logo]()
$545
This American Airlines deal was found by Cheapflights users on 8/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/308:00 am -
1 stop8h 31m
Deal found 8/11![American Airlines logo]()
$569
This United Airlines deal was found by Cheapflights users on 8/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/197:20 pm -
2 stops16h 15m
Deal found 8/11![United Airlines logo]()
$637
This Kiwi.com deal was found by Cheapflights users on 8/12. 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.
Mon 10/122:47 pm -
3 stops35h 12m
Deal found 8/12![Multiple Airlines logo]()
$653
This United Airlines deal was found by Cheapflights users on 8/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/186:02 pm -
2 stops17h 32m
Deal found 8/11![United Airlines logo]()
$668
This United Airlines deal was found by Cheapflights users on 8/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:25 pm -
2 stops16h 09m
Deal found 8/11![United Airlines logo]()
$675
This Delta deal was found by Cheapflights users on 8/11. 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.
Fri 9/184:57 pm -
1 stop7h 03m
Deal found 8/11![Delta logo]()
$690
This United Airlines deal was found by Cheapflights users on 8/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/37:25 pm -
2 stops16h 09m
Deal found 8/11![United Airlines logo]()
$713
Find flight deals from Knoxville to Boise
Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to Boise (BOI). 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 August 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $277 (American Airlines) |
One-way from | $168 (American Airlines) |
Popular in | December |
Cheapest in | April |
Average price | $500 |
Cheapflights Fare Finder
Customize your flight search to find flights from Knoxville to Boise 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 August 14, 2026.
Use the filters below to find and compare flights from Knoxville to Boise that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
KnoxvilleBoise
TYS Knoxville McGhee Tyson - BOI Boise Air Term. Gowen Fld
TYSBOI
Knoxville McGhee Tyson
Sat 9/26
6:00 am-1:00 pm
1 stop9h 00m
Boise Air Term. Gowen Fld
Tue 10/13
3:24 pm-11:59 pm
1 stop6h 35m
$277
KnoxvilleBoise
TYS Knoxville McGhee Tyson - BOI Boise Air Term. Gowen Fld
TYSBOI
Knoxville McGhee Tyson
Wed 9/9
3:00 pm-10:30 pm
2 stops9h 30m
Boise Air Term. Gowen Fld
Sat 9/12
8:30 am-5:45 pm
2 stops7h 15m
$364
KnoxvilleBoise
TYS Knoxville McGhee Tyson - BOI Boise Air Term. Gowen Fld
TYSBOI
Knoxville McGhee Tyson
Fri 9/11
4:50 pm-9:45 pm
1 stop6h 55m
Boise Air Term. Gowen Fld
Sat 9/19
5:00 am-3:46 pm
1 stop8h 46m
$370
KnoxvilleBoise
TYS Knoxville McGhee Tyson - BOI Boise Air Term. Gowen Fld
TYSBOI
Knoxville McGhee Tyson
Sun 9/6
7:00 am-11:29 am
1 stop6h 29m
Boise Air Term. Gowen Fld
Thu 9/10
2:50 pm-1:27 pm
2 stops20h 37m
$371
KnoxvilleBoise
TYS Knoxville McGhee Tyson - BOI Boise Air Term. Gowen Fld
TYSBOI
Knoxville McGhee Tyson
Sat 9/26
10:42 am-9:39 pm
2 stops12h 57m
Boise Air Term. Gowen Fld
Tue 10/13
6:50 pm-9:45 am
2 stops12h 55m
$387
KnoxvilleBoise
TYS Knoxville McGhee Tyson - BOI Boise Air Term. Gowen Fld
TYSBOI
Knoxville McGhee Tyson
Tue 9/29
8:00 am-2:31 pm
1 stop8h 31m
Boise Air Term. Gowen Fld
Tue 10/13
2:41 pm-11:18 pm
1 stop6h 37m
$429
KnoxvilleBoise
TYS Knoxville McGhee Tyson - BOI Boise Air Term. Gowen Fld
TYSBOI
Knoxville McGhee Tyson
Sat 12/5
2:55 pm-10:42 pm
1 stop9h 47m
Boise Air Term. Gowen Fld
Sun 12/6
12:19 pm-11:32 pm
1 stop9h 13m
$448
KnoxvilleBoise
TYS Knoxville McGhee Tyson - BOI Boise Air Term. Gowen Fld
TYSBOI
Knoxville McGhee Tyson
Thu 9/17
5:40 am-1:01 pm
1 stop9h 21m
Boise Air Term. Gowen Fld
Sun 9/20
11:10 pm-9:29 am
1 stop8h 19m
$460
KnoxvilleBoise
TYS Knoxville McGhee Tyson - BOI Boise Air Term. Gowen Fld
TYSBOI
Knoxville McGhee Tyson
Sat 12/5
7:10 am-8:25 pm
2 stops15h 15m
Boise Air Term. Gowen Fld
Sun 12/6
5:00 am-6:45 pm
2 stops11h 45m
$464
Quickest round-trip
KnoxvilleBoise
TYS Knoxville McGhee Tyson - BOI Boise Air Term. Gowen Fld
TYSBOI
Knoxville McGhee Tyson
Fri 1/8
5:25 pm-10:32 pm
1 stop7h 07m
Boise Air Term. Gowen Fld
Thu 1/14
3:24 pm-11:59 pm
1 stop6h 35m
$467
Showing 1-10 of 21 resultsSorted by cheapest first
Compare providers for flights from Knoxville to Boise
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 Boise in August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Knoxville-Boise flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Knoxville-Boise flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Knoxville-Boise flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Knoxville-Boise 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-Boise 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 Boise
Have a flexible travel schedule? Discover the best time to fly to Boise from Knoxville with our price prediction graph.
TYS-BOI
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.
Reviews of airlines servicing Boise
Get insights into the airlines that provide service to Boise. 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 Boise. Reviews last updated August 14, 2026.
Read through reviews of airlines operating flights from Knoxville to Boise, such as Delta,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Food
7.2
Boarding
8.1
Overall
7.8
Entertainment
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Food
7.2
Boarding
8.1
Overall
7.8
Entertainment
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Food
7.2
Boarding
8.1
Overall
7.8
Entertainment
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Crew
8.5
Food
7.2
Boarding
8.1
Overall
7.8
Entertainment
7.8
Comfort
7.8
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from Knoxville to Boise. 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 Boise?
Book flights to Boise if you plan to visit one of these locationsOntario
Meridian
Nampa
Caldwell
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Knoxville and Boise flights
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Browse through other flights departing from Knoxville. Flights are based on user searches made on Cheapflights and were last updated on August 14, 2026.
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Top 3 airlines flying from Knoxville to Boise
Discover the top 3 airlines that operate flights from Knoxville to Boise. 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 August 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$350 | Average$563 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$358 | Average$566 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$378 | Average$598 | FlexibilityNo cancel fee | On-time71% |