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

Compare Knoxville to Boise flight deals

Find the cheapest month or even day of the year to fly to Boise

Book the best Boise fare with no extra fees

Flight deals from Knoxville to Boise

Looking for a cheap last-minute deal or the best round-trip flight from Knoxville to Boise? Find the lowest prices on one-way and round-trip tickets right here.

Knoxville to Boise: Alternative routes

Compare routes from Knoxville to Boise below. You may find an airport to fly into that's cheaper, faster, or easier than Boise.

Finding cheap flights from Knoxville to Boise: Frequently asked questions

How much are round-trip flights from Knoxville to Boise?

The best price we found for a round-trip flight from Knoxville to Boise is $289. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

Which airlines fly direct from Knoxville to Boise?

Currently, there are no airlines that fly direct from Knoxville to Boise. But we found flights with one or more stops from $289.

How many flights are there a week from Knoxville to Boise?

There are no flights flying from Knoxville to Boise, as of March 2025.

When is the cheapest time to fly from Knoxville to Boise?

The cheapest month to fly from Knoxville to Boise is usually March 2025.

Which upcoming date is cheapest to fly from Knoxville Airport to Boise Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Knoxville Airport to Boise Airport on Friday, April 11, 2025.

Can I get a direct flight from Knoxville Airport to Boise Airport?

No airlines currently offer direct flights between Knoxville Airport and Boise Airport. Most routes have one or more stops.

How can I find the best flight deal to Boise?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Boise but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Boise?

We crunched all the numbers in our flight calendar, and it looks like the cheapest time to book a flight to Boise is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly with from Knoxville Airport to Boise?

Currently, Delta offers the cheapest flight tickets to Boise.

How to find cheap flights to Boise from Knoxville

Looking for cheap tickets from Knoxville to Boise? Here are a few tips on how to secure the best flight price and make your journey as smooth as possible.

Simply hit "search." From Delta Air Lines to international carriers like Emirates, we compare all major airlines along with the most popular online travel agents to find the cheapest plane tickets from Knoxville to Boise. And with us, there are no hidden fees – what you see is what you pay.
Compare flight deals to Boise from Knoxville from over 1,000 providers. Then choose the cheapest plane tickets or fastest journeys.
Flex your dates to find the best Knoxville–Boise ticket prices. If you're flexible when it comes to your travel dates, use Skyscanner's "Whole month" tool to find the cheapest month, and even day to fly to Boise from Knoxville.
Set up a Price Alert. You can easily track the fare of your cheap Knoxville–Boise flights by creating an alert. Whenever prices go down or up, you'll get an email or push notification to help make sure you get the best possible flight deal.
Fly without stops. Only interested in direct flights between Knoxville and Boise? Make sure to tick "Direct flights only" when performing a search. If there are direct flights available on the route, these will appear in the results.
Find the cheapest Business Class flights from Knoxville and Boise. We scour the Internet for the best Business, Premium Economy and First Class flight fares to Boise, too. Check the difference in price as you search – you might just stumble on a last-minute low fare. Note that not all cabin classes are available for every destination or airline.
Include nearby airports in your search. Widen your search for Knoxville to Boise flight deals by selecting the "add nearby airports" option. This will allow you to see flight prices for all the nearest airports at your departure point and your destination and could help you save the next time you travel.

Combine your flight to Boise from Knoxville with hotels and car rental

Once you've secured your cheap flight ticket from Knoxville to Boise, discover the best prices and exclusive rates for hotels in Boise or nearby. You can also compare hundreds of car rental companies at once so you get the best car rental price for your trip.