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Cheap flights from Boise to Knoxville from $178

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boise to Knoxville departing on 7/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Boise to Knoxville

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
1:24 pm - 7:24 pm
BOI
-
TYS
28h 00m
1 stop
Multiple Airlines Logo
7:00 am - 12:29 pm
TYS
-
BOI
7h 29m
1 stop
$351Multiple Airlines
Tue, Aug 4 - Thu, Aug 13
Delta Logo
11:10 pm - 9:48 am
BOI
-
TYS
8h 38m
1 stop
Delta Logo
3:54 pm - 9:57 pm
TYS
-
BOI
8h 03m
1 stop
$355Delta
Tue, Jul 21 - Tue, Jul 28
Southwest Logo
6:00 am - 6:55 pm
BOI
-
TYS
10h 55m
2 stops
Southwest Logo
6:50 am - 3:25 pm
TYS
-
BOI
10h 35m
2 stops
$379Southwest
Wed, Sep 23 - Sat, Sep 26
Delta Logo
3:22 pm - 11:02 pm
BOI
-
TYS
5h 40m
1 stop
Delta Logo
5:30 am - 12:39 pm
TYS
-
BOI
9h 09m
1 stop
$387Delta
Tue, Oct 6 - Tue, Oct 13
Southwest Logo
4:45 pm - 12:05 pm
BOI
-
TYS
17h 20m
2 stops
Southwest Logo
7:00 am - 4:00 pm
TYS
-
BOI
11h 00m
2 stops
$395Southwest
Tue, Oct 6 - Tue, Oct 13
Delta Logo
11:10 pm - 9:36 am
BOI
-
TYS
8h 26m
1 stop
Delta Logo
6:25 pm - 11:59 pm
TYS
-
BOI
7h 34m
1 stop
$400Delta
Thu, Aug 6 - Tue, Aug 11
Southwest Logo
6:00 am - 6:55 pm
BOI
-
TYS
10h 55m
2 stops
Southwest Logo
1:55 pm - 9:30 pm
TYS
-
BOI
9h 35m
1 stop
$403Southwest
Wed, Sep 23 - Sat, Sep 26
Delta Logo
11:30 pm - 9:12 am
BOI
-
TYS
7h 42m
1 stop
Delta Logo
7:55 am - 12:42 pm
TYS
-
BOI
6h 47m
1 stop
$406Delta
Mon, Oct 12 - Wed, Nov 11
Southwest Logo
7:50 am - 6:40 pm
BOI
-
TYS
8h 50m
1 stop
Southwest Logo
2:45 pm - 11:05 pm
TYS
-
BOI
10h 20m
2 stops
$417Southwest
Mon, Oct 12 - Wed, Nov 11
Delta Logo
11:30 pm - 9:12 am
BOI
-
TYS
7h 42m
1 stop
Delta Logo
7:55 am - 12:42 pm
TYS
-
BOI
6h 47m
1 stop
$419Delta
Thu, Nov 5 - Sun, Nov 8

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United Airlines flights from Boise to Knoxville

Our best United Airlines deals on Boise to Knoxville flight tickets
United Airlines
Aug 12
BOI12:24 pmBoise Air Term. Gowen Fld
6h 29m
1 stop
TYS8:53 pmKnoxville McGhee Tyson
Aug 15
TYS7:00 amKnoxville McGhee Tyson
10h 31m
2 stops
BOI3:31 pmBoise Air Term. Gowen Fld
$360
United Airlines
Aug 5
BOI12:34 pmBoise Air Term. Gowen Fld
6h 10m
1 stop
TYS8:44 pmKnoxville McGhee Tyson
Aug 9
TYS6:00 amKnoxville McGhee Tyson
7h 32m
1 stop
BOI11:32 amBoise Air Term. Gowen Fld
$437
United Airlines
Aug 25
BOI6:30 amBoise Air Term. Gowen Fld
7h 24m
1 stop
TYS3:54 pmKnoxville McGhee Tyson
Aug 26
TYS7:00 amKnoxville McGhee Tyson
6h 28m
1 stop
BOI11:28 amBoise Air Term. Gowen Fld
$455

Delta flights from Boise to Knoxville

Our best Delta deals on Boise to Knoxville flight tickets
Delta
Jul 21
BOI11:10 pmBoise Air Term. Gowen Fld
8h 38m
1 stop
TYS9:48 amKnoxville McGhee Tyson
Jul 28
TYS3:54 pmKnoxville McGhee Tyson
8h 03m
1 stop
BOI9:57 pmBoise Air Term. Gowen Fld
$355
Delta
Oct 6
BOI3:22 pmBoise Air Term. Gowen Fld
5h 40m
1 stop
TYS11:02 pmKnoxville McGhee Tyson
Oct 13
TYS5:30 amKnoxville McGhee Tyson
9h 09m
1 stop
BOI12:39 pmBoise Air Term. Gowen Fld
$387
Delta
Aug 6
BOI11:10 pmBoise Air Term. Gowen Fld
8h 26m
1 stop
TYS9:36 amKnoxville McGhee Tyson
Aug 11
TYS6:25 pmKnoxville McGhee Tyson
7h 34m
1 stop
BOI11:59 pmBoise Air Term. Gowen Fld
$400

momondo 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, momondo users made 832,500 searches. Data last updated June 24, 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

Price

Cheapest round-trip

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Tue 8/4

1:24 pm-7:24 pm

1 stop28h 00m

Knoxville McGhee Tyson

Thu 8/13

7:00 am-12:29 pm

1 stop7h 29m

$351

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Tue 7/21

11:10 pm-9:48 am

1 stop8h 38m

Knoxville McGhee Tyson

Tue 7/28

3:54 pm-9:57 pm

1 stop8h 03m

$355

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Wed 9/23

6:00 am-6:55 pm

2 stops10h 55m

Knoxville McGhee Tyson

Sat 9/26

6:50 am-3:25 pm

2 stops10h 35m

$379

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Tue 10/6

3:22 pm-11:02 pm

1 stop5h 40m

Knoxville McGhee Tyson

Tue 10/13

5:30 am-12:39 pm

1 stop9h 09m

$387

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Tue 10/6

4:45 pm-12:05 pm

2 stops17h 20m

Knoxville McGhee Tyson

Tue 10/13

7:00 am-4:00 pm

2 stops11h 00m

$395

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Thu 8/6

11:10 pm-9:36 am

1 stop8h 26m

Knoxville McGhee Tyson

Tue 8/11

6:25 pm-11:59 pm

1 stop7h 34m

$400

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Wed 9/23

6:00 am-6:55 pm

2 stops10h 55m

Knoxville McGhee Tyson

Sat 9/26

1:55 pm-9:30 pm

1 stop9h 35m

$403
Quickest round-trip

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Mon 10/12

11:30 pm-9:12 am

1 stop7h 42m

Knoxville McGhee Tyson

Wed 11/11

7:55 am-12:42 pm

1 stop6h 47m

$406

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Mon 10/12

7:50 am-6:40 pm

1 stop8h 50m

Knoxville McGhee Tyson

Wed 11/11

2:45 pm-11:05 pm

2 stops10h 20m

$417

BoiseKnoxville

BOI - TYS

BOITYS

Boise Air Term. Gowen Fld

Thu 11/5

11:30 pm-9:12 am

1 stop7h 42m

Knoxville McGhee Tyson

Sun 11/8

7:55 am-12:42 pm

1 stop6h 47m

$419

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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See travel insights to Knoxville from

How to get the cheapest flight ticket from Boise to Knoxville

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Boise and Knoxville?

What is the cheapest month to fly to Knoxville?

The month of September is, on average, the cheapest month to fly to Knoxville from Boise, with most prices found around $313. If you aren’t able to travel during the month of September, then book flights to Knoxville from Boise during February instead. Flights to Knoxville in February, while not as cheap as those in September, still average around $504.

Can stopping save me money on Boise to Knoxville flights?

You could potentially save up to 18% on your flight if you consider stops on a Boise to Knoxville flight.

When to book flights from Boise to Knoxville

Are you open to changing your travel dates? Check out the ideal times to fly from Boise to Knoxville according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boise to Knoxville (BOI to TYS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boise to Knoxville

Fastest flight time

5h 39m

Direct flights

None
The fastest flight from Boise to Knoxville takes 5h 39m
There are no direct flights from Boise to Knoxville. There are no popular flight routes from Boise to Knoxville.
Search flight deals

Frequently asked questions about flying from Boise to Knoxville

  • How far is Boise Air Term. Gowen Fld to Knoxville McGhee Tyson by plane?

    The straight-line distance from Boise Air Term. Gowen Fld to Knoxville McGhee Tyson is 1779.7 mi. A reasonable flight in good conditions will take 5h 39m.

  • When did momondo last update prices for flights from Boise Air Term. Gowen Fld Airport to Knoxville McGhee Tyson Airport?

    Prices for flights from Boise Air Term. Gowen Fld Airport to Knoxville McGhee Tyson Airport were last updated today.

  • How many operators does momondo search for flights from Boise Air Term. Gowen Fld Airport to Knoxville McGhee Tyson Airport?

  • How old do you have to be to fly from Boise Air Term. Gowen Fld Airport to Knoxville McGhee Tyson Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Boise Air Term. Gowen Fld Airport to Knoxville McGhee Tyson Airport.

  • What documentation or ID do you need to fly to Knoxville McGhee Tyson Airport?

    The travel and health documents required for your trip to Knoxville McGhee Tyson Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Knoxville McGhee Tyson Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Boise to Knoxville?

Best airlines flying from Boise to Knoxville

Compare and see reviews for airlines that fly from Boise to Knoxville with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $288Free CancellationRating
7.1
11,748 reviews
Search American Airlines flights
United AirlinesPriceFrom $358Free CancellationRating
7.4
9,879 reviews
Search United Airlines flights
DeltaPriceFrom $388Free CancellationRating
7.8
8,429 reviews
Search Delta flights
Alaska AirlinesPriceFrom $625Free CancellationRating
7.9
12,565 reviews
Search Alaska Airlines flights

Traveling to a place near Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
Pigeon Forge
Gatlinburg
Cherokee
Bryson City
Morristown
Corbin
Alcoa
Maryville
Murphy
Crossville
Oak Ridge
Kodak
Newport
Lenoir City
Dandridge
Clinton
Jefferson City
Rockford

Why use momondo?

Why should I use momondo to find a flight deal from Boise to Knoxville?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Boise to Knoxville. momondo saves you time and could save you money on your trip.

Can I find flights from Boise to Knoxville with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Boise to Knoxville flights to just show those with flexible booking policies.

How can momondo help me find flights from Boise to Knoxville?

Once you have performed a search for Boise to Knoxville flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Boise to Knoxville right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Knoxville, momondo offers a useful price alert feature which will track prices for flights to Knoxville from Boise and alert you when they change.

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