BOI - TYS

$193 Find Cheap Flights from Boise to Knoxville

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boise to Knoxville departing on 2/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Knoxville

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boise to Knoxville, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boise to Knoxville, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$411
Overall average: $417
United Airlines
Sat 2/14Tue 2/17
BOI - TYS • 1 stop
Cheapest one-way
$193
Delta
Sat 2/14
BOI - TYS • 1 stop
Top airlines
American Airlines
Cheapest • from $385 (round-trip)
Alaska Airlines
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 39% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 40% price drop
May
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Knoxville!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Boise to Knoxville (BOI-TYS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Boise to Knoxville that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Boise to Knoxville

Sat, Feb 14 - Tue, Feb 17
United Airlines Logo
2:40 pm - 10:30 pm
BOI
-
TYS
5h 50m
1 stop
United Airlines Logo
6:45 am - 12:33 pm
TYS
-
BOI
7h 48m
1 stop
$411United Airlines
Sat, Feb 14 - Tue, Feb 17
United Airlines Logo
2:40 pm - 10:30 pm
BOI
-
TYS
5h 50m
1 stop
United Airlines Logo
6:45 am - 1:38 pm
TYS
-
BOI
8h 53m
2 stops
$416United Airlines
Thu, Jan 29 - Sat, Feb 7
American Airlines Logo
1:58 pm - 10:47 pm
BOI
-
TYS
6h 49m
1 stop
American Airlines Logo
7:44 am - 7:25 pm
TYS
-
BOI
13h 41m
2 stops
$509American Airlines
Sat, Feb 14 - Tue, Feb 17
United Airlines Logo
10:25 am - 8:37 pm
BOI
-
TYS
8h 12m
2 stops
United Airlines Logo
6:45 am - 1:38 pm
TYS
-
BOI
8h 53m
2 stops
$512United Airlines
Thu, Feb 12 - Sat, Feb 28
Delta Logo
1:43 pm - 11:52 pm
BOI
-
TYS
8h 09m
1 stop
Delta Logo
6:35 am - 1:59 pm
TYS
-
BOI
9h 24m
1 stop
$522Delta
Thu, Feb 12 - Sat, Feb 28
Delta Logo
2:54 pm - 11:12 pm
BOI
-
TYS
6h 18m
1 stop
Delta Logo
5:35 am - 1:59 pm
TYS
-
BOI
10h 24m
2 stops
$527Delta
Tue, Feb 3 - Sat, Feb 7
United Airlines Logo
6:10 am - 3:14 pm
BOI
-
TYS
7h 04m
1 stop
United Airlines Logo
4:25 pm - 9:52 pm
TYS
-
BOI
7h 27m
1 stop
$535United Airlines
Thu, Jan 29 - Sat, Feb 7
Delta Logo
1:40 pm - 11:45 pm
BOI
-
TYS
8h 05m
1 stop
Delta Logo
6:30 am - 4:17 pm
TYS
-
BOI
11h 47m
2 stops
$536Delta
Tue, Feb 3 - Sat, Feb 7
United Airlines Logo
6:10 am - 3:14 pm
BOI
-
TYS
7h 04m
1 stop
United Airlines Logo
6:45 am - 7:51 pm
TYS
-
BOI
15h 06m
2 stops
$540United Airlines
Thu, Jan 29 - Sat, Feb 7
Delta Logo
5:20 am - 8:47 pm
BOI
-
TYS
13h 27m
2 stops
Delta Logo
6:30 am - 4:17 pm
TYS
-
BOI
11h 47m
2 stops
$542Delta
Booking Insights

KAYAK's insights & trends for Boise to Knoxville flights

Get data-powered insights and trends into flights from Boise to Knoxville to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Boise to Knoxville?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boise to Knoxville, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Boise to Knoxville is January, where tickets cost $304 (return) on average. On the other hand, the most expensive months are March and July, where the average cost of round-trip tickets is $667 and $641 respectively.

How far in advance should I book a flight from Boise to Knoxville?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Boise to Knoxville, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Boise to Knoxville, you should book around 4 weeks before departure, which saves you about 39% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$193
Best time to beat the crowds with an average 41% drop in price.
Flight from Boise to Knoxville

When to book flights from Boise to Knoxville

Are your dates flexible? Find out the best times to travel from Boise to Knoxville based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Boise to Knoxville

  • What is the cheapest flight from Boise to Knoxville?

    In the last 3 days, the lowest price for a flight from Boise to Knoxville was $193 for a one-way ticket and $385 for a round-trip.

  • Do I need a passport to fly between Boise and Knoxville?

    No

  • Which airports will I be using when flying from Boise to Knoxville?

    On your way to Knoxville, you’ll fly out from Boise Air Term. Gowen Fld. You’ll be landing at Knoxville McGhee Tyson.

  • Which aircraft models fly most regularly from Boise to Knoxville?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Boise to Knoxville?

    SkyTeam, Star Alliance, and oneworld are the airline alliances operating flights between Boise and Knoxville, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Boise to Knoxville, Alaska Airlines or Delta?

    The two airlines most popular with KAYAK users for flights from Boise to Knoxville are Alaska Airlines and Delta. With an average price for the route of $672 and an overall rating of 8.0, Alaska Airlines is the most popular choice. Delta is also a great choice for the route, with an average price of $495 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Boise to Knoxville?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Boise to Knoxville.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Boise to Knoxville?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Knoxville from Boise is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Boise to Knoxville?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Knoxville with an airline and back to Boise with another airline. Booking your flights between Boise and TYS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Boise to Knoxville?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Knoxville from Boise up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 4 airlines serving from Boise to Knoxville

 
See real verified KAYAK customer reviews for airlines flying from Boise to Knoxville. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Boise to Knoxville? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 11745 reviews
8.1Boarding
8.5Crew
7.0Entertainment
7.1Food
7.8Comfort
Airline reviews

the flight attendant was so great and the upgrade to first class was top notch

10.0 ExcellentKatarina, Jan 2026
JFK - PDX
Read more Alaska Airlines reviews

the flight attendant was so great and the upgrade to first class was top notch

Departed on time and had an efficient boarding process. The inflight wifi was not working on one of the flights.

On time departure and early arrival giving more than ample time for connecting flight.

Again, very smooth and all of the Alaska folks were great. They continue to meet all my needs.

Overall it was fine, however one of my two checked bags did not arrive and I was told it was left in Palm Springs. I don't understand how one of the two bags made it through fine but the other got lost .

No WiFi. Terrible food. Very long walk to the gate and from the gate after landing. Gate changed without notice.

There was no food or entertainment, thus thus the neutral rating.

The Alaska Airlines app made it very difficult to find my boarding pass. It was very frustrating to use! The flight itself was flawless.

Flights were on time, easy boarding, comfort, flight was smooth.... Best travel experience I have ever had

It wasn’t great. Your app is not user friendly unless you sign up for those points. It tries to force you and won’t show you flight/trip info until you sign up. You have to somehow get into get your boarding pass because your kiosks don’t offer boarding pass information only bag check. It was not helpful or user friendly. The app is useless unless you sign up for your rewards program. My daughters info was missing even though I checked us in we had to get out of security and go back to a ticket window the woman told us that it sometimes populates incorrectly so it didn’t have her information. It populated incorrect birth date. She said this is common. Luckily we were at Palm Springs and not JFK where leaving the giant security line would have been a much bigger problem. I will avoid your airline in the future if it’s possible. Also no food availability except dry snack boxes.

I upgraded to first. Quick and easy boarding. Comfortable seat with power and a nice IPA.

Probably not the fault of Delta but there was delay after delay after delay and I ended up getting home 4 hours later then I should have at 1:30 in the morning

No in flight service, no explanation - FC got service, C+ did not, unsure about Economy. No turbulence to speak of, so I guess another way to cut cost, or promote health and well being of Delta employees? Also, boarding in MEM combined zones, and with overhead space already full on both flights after Zone 2/ Diamond, presents a huge challenge to find a space for a bag. Delta, other than point A to B, is no longer reasonable to fly - very poor experiences, not even taking into account the chastising at the gate and rude crews, across the board.

It would have been better if the flight wasn't delayed by 2.5 hours

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

Delta flight Delay for ,more that two hours i.e original flight was 6.30 PM and it starts at 8.45 PM, When we connect Delta team for meal vouchers as it is late arrival in designation,But we did not get it as per delta policy , which is not good for mid night arrival,

Inexperienced boarding crew allowed too many bags on to a full flight and delayed takeoff causing a missed connection and unplanned overnight stay. There was a hotel at the airport but Delta would not pay for it offering only to shuttle me to an area hotel. Never even offerred so much as an apology by anyone working for Delta.

Staff was great! Kind and cordial! Middle seat row 28 seat B has a hump in it. Trays were getting stuck when putting down and up. Good flight

Departure was delayed resulting in me missing my connection. Delta did not autimatically find me another flight.

The seats weren’t reclining even though it wasn’t as exit seat

Very good. Because of the delays with my previous flight, I missed my connection, but I was able to book another flight through the United app easily.

I wish there were outlets to charge my iPhone. The crew was great; we had a female pilot who was great with explaining what was happening and delays,

The flight crew where really good. Better then the crew from BNE to SFO

Delayed, toilets did not flush, pilot parked to far away from Gate

Was happy we finally got upgraded in 1st class. The seat getting old. The cushiness need some improvement.

Yet another flight in which beverage and snack service was skipped. Other that that, firmly mediocre. Landed early, to gate late due to congestion at the gates. Airline's fault or airports fault: unknown.

Miserable. They moved my seat, but canceled the next leg of my flight. I resolved the issue at my transfer, but that resulted in lost luggage that has taken days off my schedule with no resolution. Worse, they fail to interface effectively with Lufthansa, forcing me to bounce between two equally useless help desks. The apps are unable to handle the situation, the bag dropped off the tracker, and while the call centers are polite, they do not provide written information to assist with cross-airline communication.

left on time, reasonable boarding process arrived early luggage came out quickly

I like flying first class, and United has a nice one

Teeny tiny bathrooms, crew was not realistic about when we'd arrive.

It was a good trip. Flight Attendants were friendly and responsive.

Qatar airways ,boarding arrangements at Hamid international airport could been better

Crew in Columbia was not prepared for landing. It was a bit of a disaster and getting bags took forever.

My seat tv didn’t work the whole trip. And the seat space is too small despite being seated at the front.

The seat cushions were very worn so they were extremely uncomfortable.

Delayed, no updates, had a rewards number but was not working

The seats from lax to DFW was so tight that I could not move my legs . No WiFi and had to pay . Not a good selection of entertainment

AA should improve their in air internet & entertainment options. Seems unreasonable to charge $20/hr and should have some form of free connections. The entertainment options are also pretty limited, movies are outdated and the series only show 3-5 episodes.

We were upgraded to First Class and it was a great flight

Amazing I love American. I’ll never fly anyone else if I can help it.

Everything you need to know for your flight from Boise to Knoxville

Information on your arrival and departure airports