$277+ Cheap flights from Boise to Knoxville (BOI - TYS)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/3. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — TYS
Jul 16 — Jul 231
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Boise to Knoxville with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Boise to Knoxville
Cheapest
Best
Last-minute
One-way
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 June 16, 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 June 16, 2026.
This Delta deal was found by Cheapflights users on 6/11. 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.
Tue 11/311:30 pm
BOI
- TYS
1 stop7h 42m
Delta
Wed 11/117:00 am
TYS
- BOI
1 stop7h 39m
Delta
Deal found 6/11![Delta logo]()
$277
This Delta deal was found by Cheapflights users on 6/11. 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 11/73:22 pm
BOI
- TYS
1 stop5h 40m
Delta
Tue 11/107:00 am
TYS
- BOI
1 stop7h 39m
Delta
Deal found 6/11![Delta logo]()
$305
This Delta deal was found by Cheapflights users on 6/11. 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.
Mon 11/21:43 pm
BOI
- TYS
1 stop6h 02m
Delta
Tue 11/106:15 pm
TYS
- BOI
1 stop7h 40m
Delta
Deal found 6/11![Delta logo]()
$306
This Delta deal was found by Cheapflights users on 6/11. 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 11/63:22 pm
BOI
- TYS
1 stop5h 40m
Delta
Tue 11/107:55 am
TYS
- BOI
1 stop6h 47m
Delta
Deal found 6/11![Delta logo]()
$334
This Delta deal was found by Cheapflights users on 6/11. 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.
Mon 11/211:30 pm
BOI
- TYS
1 stop7h 42m
Delta
Thu 11/127:55 am
TYS
- BOI
1 stop6h 47m
Delta
Deal found 6/11![Delta logo]()
$335
This Delta deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/11:59 pm
BOI
- TYS
1 stop7h 53m
Delta
Wed 9/96:20 pm
TYS
- BOI
1 stop7h 39m
Delta
Deal found 6/15![Delta logo]()
$355
This Delta deal was found by Cheapflights users on 6/11. 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 11/63:22 pm
BOI
- TYS
1 stop5h 40m
Delta
Sat 11/77:55 am
TYS
- BOI
1 stop6h 47m
Delta
Deal found 6/11![Delta logo]()
$362
This Delta deal was found by Cheapflights users on 6/11. 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 11/63:22 pm
BOI
- TYS
1 stop5h 40m
Delta
Mon 11/96:15 pm
TYS
- BOI
1 stop7h 40m
Delta
Deal found 6/11![Delta logo]()
$363
This Southwest deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/55:00 am
BOI
- TYS
2 stops8h 00m
Southwest
Mon 11/93:40 pm
TYS
- BOI
2 stops11h 10m
Southwest
Deal found 6/11![Southwest logo]()
$366
This Delta deal was found by Cheapflights users on 6/11. 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.
Sun 11/81:43 pm
BOI
- TYS
1 stop6h 02m
Delta
Tue 11/106:15 pm
TYS
- BOI
1 stop7h 40m
Delta
Deal found 6/11![Delta logo]()
$367
This Delta deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/41:43 pm
BOI
- TYS
1 stop6h 02m
Delta
Thu 11/127:55 am
TYS
- BOI
1 stop6h 47m
Delta
Deal found 6/15![Delta logo]()
$368
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 June 16, 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 June 16, 2026.
This United Airlines deal was found by Cheapflights users on 6/11. 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 8/256:30 am
BOI
- TYS
1 stop7h 24m
United Airlines
Wed 8/267:00 am
TYS
- BOI
1 stop6h 28m
United Airlines
Deal found 6/11![United Airlines logo]()
$377
This Delta deal was found by Cheapflights users on 6/11. 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 11/78:40 am
BOI
- TYS
2 stops13h 06m
Delta
Wed 11/115:57 pm
TYS
- BOI
1 stop6h 44m
Delta
Deal found 6/11![Delta logo]()
$383
This Southwest deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/122:55 pm
BOI
- TYS
2 stops19h 30m
Southwest
Mon 9/144:50 pm
TYS
- BOI
2 stops8h 45m
Southwest
Deal found 6/14![Southwest logo]()
$403
This Delta deal was found by Cheapflights users on 6/11. 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.
Mon 11/211:30 pm
BOI
- TYS
1 stop7h 42m
Delta
Sun 11/85:30 am
TYS
- BOI
1 stop9h 09m
Delta
Deal found 6/11![Delta logo]()
$396
This Delta deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/142:14 pm
BOI
- TYS
1 stop7h 36m
Delta
Sat 9/196:35 am
TYS
- BOI
1 stop9h 03m
Delta
Deal found 6/15![Delta logo]()
$405
This Delta deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/182:50 pm
BOI
- TYS
1 stop6h 14m
Delta
Sat 9/196:35 am
TYS
- BOI
1 stop9h 03m
Delta
Deal found 6/15![Delta logo]()
$443
Last-minute flights from Boise to KnoxvilleDiscover last-minute flight deals from Boise to Knoxville. Data last updated June 16, 2026 and is based on user searches.
Discover last-minute flight deals from Boise to Knoxville. Data last updated June 16, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/272:04 pm
BOI
- TYS
1 stop7h 58m
Delta
Sat 7/46:45 am
TYS
- BOI
1 stop9h 06m
Delta
Deal found 6/15![Delta logo]()
$556
This Delta deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/2811:45 pm
BOI
- TYS
1 stop7h 53m
Delta
Thu 7/23:54 pm
TYS
- BOI
1 stop8h 41m
Delta
Deal found 6/12![Delta logo]()
$577
This Southwest deal was found by Cheapflights users on 6/12. 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.
Sun 6/289:40 am
BOI
- TYS
1 stop6h 40m
Southwest
Thu 7/24:20 pm
TYS
- BOI
2 stops10h 50m
Southwest
Deal found 6/12![Southwest logo]()
$582
This Southwest deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/297:10 am
BOI
- TYS
2 stops12h 00m
Southwest
Fri 7/34:20 pm
TYS
- BOI
1 stop8h 35m
Southwest
Deal found 6/14![Southwest logo]()
$543
This United Airlines deal was found by Cheapflights users on 6/11. 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 7/1012:34 pm
BOI
- TYS
1 stop6h 10m
United Airlines
Thu 7/166:00 am
TYS
- BOI
1 stop7h 32m
United Airlines
Deal found 6/11![United Airlines logo]()
$487
This Southwest deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/108:45 am
BOI
- TYS
2 stops10h 30m
Southwest
Thu 7/164:20 pm
TYS
- BOI
1 stop8h 40m
Southwest
Deal found 6/11![Southwest logo]()
$502
This United Airlines deal was found by Cheapflights users on 6/13. 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.
Sat 7/1112:34 pm
BOI
- TYS
1 stop6h 10m
United Airlines
Sat 7/186:00 am
TYS
- BOI
1 stop7h 32m
United Airlines
Deal found 6/13![United Airlines logo]()
$473
This American Airlines deal was found by Cheapflights users on 6/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/116:33 pm
BOI
- TYS
2 stops11h 58m
American Airlines
Sat 7/185:37 am
TYS
- BOI
1 stop7h 42m
American Airlines
Deal found 6/13![American Airlines logo]()
$478
This Southwest deal was found by Cheapflights users on 6/13. 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.
Sat 7/115:40 am
BOI
- TYS
2 stops10h 40m
Southwest
Sat 7/185:15 pm
TYS
- BOI
2 stops9h 15m
Southwest
Deal found 6/13![Southwest logo]()
$537
This United Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/1312:34 pm
BOI
- TYS
1 stop6h 10m
United Airlines
Sun 7/196:00 am
TYS
- BOI
1 stop7h 32m
United Airlines
Deal found 6/14![United Airlines logo]()
$518
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 June 16, 2026.
Search for one-way flight options from Boise to Knoxville. Find affordable one-way fares based on user searches. Data last updated June 16, 2026.
This Delta deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/272:04 pm
BOI
- TYS
1 stop7h 58m
Delta
Deal found 6/15![Delta logo]()
$342
This United Airlines deal was found by Cheapflights users on 6/12. 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.
Sat 6/276:30 am
BOI
- TYS
1 stop7h 23m
United Airlines
Deal found 6/12![United Airlines logo]()
$380
This Alaska Airlines deal was found by Cheapflights users on 6/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/275:57 am
BOI
- TYS
2 stops12h 13m
Alaska Airlines
Deal found 6/12![Alaska Airlines logo]()
$466
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 June 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $277 (Delta) |
Popular in | March |
Cheapest in | September |
Average price | $566 |
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 June 16, 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
Quickest round-trip
BoiseKnoxville
BOI - TYS
BOITYS
Boise Air Term. Gowen Fld
Tue 8/25
6:30 am-3:54 pm
1 stop7h 24m
Knoxville McGhee Tyson
Wed 8/26
7:00 am-11:28 am
1 stop6h 28m
$377
BoiseKnoxville
BOI - TYS
BOITYS
Boise Air Term. Gowen Fld
Sat 11/7
8:40 am-11:46 pm
2 stops13h 06m
Knoxville McGhee Tyson
Wed 11/11
5:57 pm-10:41 pm
1 stop6h 44m
$383
BoiseKnoxville
BOI - TYS
BOITYS
Boise Air Term. Gowen Fld
Mon 11/2
11:30 pm-9:12 am
1 stop7h 42m
Knoxville McGhee Tyson
Sun 11/8
5:30 am-12:39 pm
1 stop9h 09m
$396
BoiseKnoxville
BOI - TYS
BOITYS
Boise Air Term. Gowen Fld
Sat 9/12
2:55 pm-12:25 pm
2 stops19h 30m
Knoxville McGhee Tyson
Mon 9/14
4:50 pm-11:35 pm
2 stops8h 45m
$403
BoiseKnoxville
BOI - TYS
BOITYS
Boise Air Term. Gowen Fld
Mon 9/14
2:14 pm-11:50 pm
1 stop7h 36m
Knoxville McGhee Tyson
Sat 9/19
6:35 am-1:38 pm
1 stop9h 03m
$405
BoiseKnoxville
BOI - TYS
BOITYS
Boise Air Term. Gowen Fld
Fri 9/18
2:50 pm-11:04 pm
1 stop6h 14m
Knoxville McGhee Tyson
Sat 9/19
6:35 am-1:38 pm
1 stop9h 03m
$443
Cheapest one-way
BoiseKnoxville
BOI - TYS
BOITYS
Boise Air Term. Gowen Fld
Sat 6/27
2:04 pm-12:02 am
1 stop7h 58m
$342
Quickest one-way
BoiseKnoxville
BOI - TYS
BOITYS
Boise Air Term. Gowen Fld
Sat 6/27
6:30 am-3:53 pm
1 stop7h 23m
$380
BoiseKnoxville
BOI - TYS
BOITYS
Boise Air Term. Gowen Fld
Sat 6/27
6:23 am-9:31 pm
2 stops13h 08m
$466
Sorted 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 June.
| 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
What is the cheapest month to book a flight from Boise to Knoxville?
Currently, September is the cheapest month in which you can book a flight from Boise to Knoxville (average of $313). Flying from Boise to Knoxville in March is currently the most expensive (average of $634). 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.
How much does it cost to fly round-trip 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 June 16, 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.
Food
7.1
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
7.9
Entertainment
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Food
7.1
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
7.9
Entertainment
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Food
7.1
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
7.9
Entertainment
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Food
7.1
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
7.9
Entertainment
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Food
7.1
Comfort
7.8
Boarding
8.1
Crew
8.5
Overall
7.9
Entertainment
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
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
Morristown
Bryson City
Murphy
Alcoa
Oak Ridge
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Knoxville flight routes
Other flight options
Other flights from Boise
Popular flights
Alternative routes for Boise to Knoxville
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Knoxville by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Boise to Knoxville by cabin class
Find flights from Boise to Knoxville, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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 June 16, 2026.
Boise and Knoxville flights
Browse other Boise and Knoxville flight options. Last updated on June 16, 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 June 16, 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 June 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$288 | Average$479 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$358 | Average$581 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$388 | Average$513 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$625 | Average$647 | FlexibilityNo cancel fee | On-time75% |