$202 Cheap Flights from Boise (BOI) to Knoxville (TYS)

View $202 flight on Mon, Dec 8, 2025Opens in a new window

Popular airlines from Boise Airport (BOI) to McGhee Tyson Airport (TYS)

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Cheap Flights from Boise to Knoxville (BOI-TYS)

Prices were available within the past 7 days and start at $202 for one-way flights and $388 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Tue, Dec 2 - Sat, Dec 6
BOI
Boise
TYS
Knoxville
$388 Roundtrip, found 5 days ago
$388
Roundtrip
found 5 days ago
Select American Airlines flight, departing Tue, Dec 2 from Boise to Knoxville, returning Sat, Dec 6, priced at $388 found 5 days ago
Delta
Wed, Dec 10 - Sat, Dec 13
BOI
Boise
TYS
Knoxville
$389 Roundtrip, just found
$389
Roundtrip
just found
Select Delta flight, departing Wed, Dec 10 from Boise to Knoxville, returning Sat, Dec 13, priced at $389 just found
United
Wed, Dec 10 - Sat, Dec 13
BOI
Boise
TYS
Knoxville
$389 Roundtrip, just found
$389
Roundtrip
just found
Select United flight, departing Wed, Dec 10 from Boise to Knoxville, returning Sat, Dec 13, priced at $389 just found
American Airlines
Wed, Dec 3 - Tue, Dec 9
BOI
Boise
TYS
Knoxville
$394 Roundtrip, just found
$394
Roundtrip
just found
Select American Airlines flight, departing Wed, Dec 3 from Boise to Knoxville, returning Tue, Dec 9, priced at $394 just found
Delta
Sat, Jan 31 - Sun, Feb 15
BOI
Boise
TYS
Knoxville
$399 Roundtrip, found 5 days ago
$399
Roundtrip
found 5 days ago
Select Delta flight, departing Sat, Jan 31 from Boise to Knoxville, returning Sun, Feb 15, priced at $399 found 5 days ago
Delta
Thu, Nov 27 - Sat, Dec 6
BOI
Boise
TYS
Knoxville
$399 Roundtrip, found 4 hours ago
$399
Roundtrip
found 4 hours ago
Select Delta flight, departing Thu, Nov 27 from Boise to Knoxville, returning Sat, Dec 6, priced at $399 found 4 hours ago
Delta
Wed, Jan 28 - Sun, Feb 15
BOI
Boise
TYS
Knoxville
$404 Roundtrip, found 5 days ago
$404
Roundtrip
found 5 days ago
Select Delta flight, departing Wed, Jan 28 from Boise to Knoxville, returning Sun, Feb 15, priced at $404 found 5 days ago
Delta
Thu, Feb 19 - Wed, Feb 25
BOI
Boise
TYS
Knoxville
$409 Roundtrip, found 3 days ago
$409
Roundtrip
found 3 days ago
Select Delta flight, departing Thu, Feb 19 from Boise to Knoxville, returning Wed, Feb 25, priced at $409 found 3 days ago
Southwest Airlines
Tue, Jun 2 - Tue, Jun 9
BOI
Boise
TYS
Knoxville
$415 Roundtrip, found 6 days ago
$415
Roundtrip
found 6 days ago
Select Southwest Airlines flight, departing Tue, Jun 2 from Boise to Knoxville, returning Tue, Jun 9, priced at $415 found 6 days ago
Alaska Airlines
Wed, Dec 3 - Tue, Dec 9
BOI
Boise
TYS
Knoxville
$479 Roundtrip, just found
$479
Roundtrip
just found
Select Alaska Airlines flight, departing Wed, Dec 3 from Boise to Knoxville, returning Tue, Dec 9, priced at $479 just found

Find the cheapest month to fly from Boise (BOI) to Knoxville (TYS)

April is typically the cheapest month to fly

From $234 - $690 per traveler.

Frequently asked questions

How much does a flight from Boise Airport (BOI) to McGhee Tyson Airport (TYS) cost?
Secure a cheap one-way flight from $202 or cheap return flight from $388 from Boise Airport (BOI) to McGhee Tyson Airport (TYS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Boise Airport (BOI) to McGhee Tyson Airport (TYS)?
December is the least expensive month to fly from BOI to TYS. Timing your trip outside of the busy season is often the key to better flight prices.
What is the cheapest airline that flies from Boise Airport (BOI) to McGhee Tyson Airport (TYS)?
Expedia's filter tool lets you easily compare travel time, airlines and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest BOI to TYS flight.
How many flights per day from Boise Airport (BOI) to McGhee Tyson Airport (TYS)?
Nonstop flights from Boise Airport (BOI) to McGhee Tyson Airport (TYS) aren't available daily, so you'll have to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from BOI to TYS?
Usually you'll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* But this can vary based on the season, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Boise Airport (BOI) to McGhee Tyson Airport (TYS)?
To avoid potential delays on the Boise Airport (BOI) to McGhee Tyson Airport (TYS) route, travel before 3 PM. Departures after this time are 22% more likely to be canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Boise Airport (BOI) to McGhee Tyson Airport (TYS) last-minute?
Last-minute bookings from BOI to TYS are generally more expensive. To lock in the best prices, start looking for flights ahead of time. That said, if your travel plans are flexible, it's possible to find a cheap ticket right before your journey.
Is it cheaper to book a BOI to TYS flight and hotel package?
You'll generally save money by booking a BOI to TYS flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. Once you've selected your preferred flights and accommodations, consider adding extras such as tours, car rentals and activities.
Can I cancel or change the date of my flight from Boise Airport (BOI) to McGhee Tyson Airport (TYS)?
You can usually cancel or reschedule your BOI to TYS flight. However, for bookings made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and whether any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
Boise
Destination airport
McGhee Tyson
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Roundtrip price
$388
Distance
1782 mi

Book with confidence

Boise to Knoxville Flights

The cheapest times to fly from Boise to Knoxville

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Boise to Knoxville are during the month of December. You can find some of the cheapest flights from Boise to Knoxville with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Boise to Knoxville

Sunday is one of the best days to book for cheap flights from Boise to Knoxville: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Boise to Knoxville

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Boise to Knoxville in 2025. You can also book with separate airlines for your outbound and return journeys, from $202 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Boise to Knoxville flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Boise to Knoxville airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Boise to Knoxville Flights

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