What is the cheapest airline that flies from Knoxville McGhee Tyson to Billings Logan Intl?

Allegiant Air is the most popular carrier operating from Knoxville McGhee Tyson to Billings Logan Intl

When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to Billings Logan Intl Airport?

Prices for flights from Knoxville McGhee Tyson Airport to Billings Logan Intl Airport were last updated today.

How many operators does momondo search for flights from Knoxville McGhee Tyson Airport to Billings Logan Intl Airport?

As of June 2026, there are 2 operators available to choose from for flights from Knoxville McGhee Tyson Airport to Billings Logan Intl Airport.

How old do you have to be to fly from Knoxville McGhee Tyson Airport to Billings Logan Intl Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Knoxville McGhee Tyson Airport to Billings Logan Intl Airport.

What documentation or ID do you need to fly to Billings Logan Intl Airport?

The necessary travel and health documents for your Billings Logan Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$184 Cheap Flights from Knoxville to Billings in 2026

Q: What is the typical price of a round-trip flight between Knoxville and Billings?

Prices are currently low for flights on this route. Typical prices usually range from $822 to $759. The lowest price recently found on this route was $329.

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Knoxville to Billings

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

4:50 pm - 9:00 pm

TYS

BIL

6h 10m

1 stop

2:29 pm - 10:29 pm

BIL

TYS

6h 00m

1 stop

$329United Airlines

Fri, Aug 21 - Fri, Aug 28

3:40 pm - 10:51 pm

TYS

BIL

9h 11m

2 stops

2:29 pm - 10:29 pm

BIL

TYS

6h 00m

1 stop

$334United Airlines

Fri, Aug 21 - Fri, Aug 28

6:20 pm - 11:15 pm

TYS

BIL

6h 55m

1 stop

6:33 pm - 9:39 am

BIL

TYS

13h 06m

2 stops

$379Delta

Tue, Sep 8 - Tue, Sep 15

6:20 pm - 11:15 pm

TYS

BIL

6h 55m

1 stop

12:57 pm - 11:50 pm

BIL

TYS

8h 53m

2 stops

$399Delta

Tue, Sep 8 - Mon, Sep 14

8:45 am - 1:13 pm

TYS

BIL

6h 28m

1 stop

2:40 pm - 10:20 pm

BIL

TYS

5h 40m

1 stop

$419United Airlines

Tue, Oct 27 - Sat, Oct 31

4:50 pm - 9:00 pm

TYS

BIL

6h 10m

1 stop

7:00 am - 3:54 pm

BIL

TYS

6h 54m

1 stop

$469United Airlines

Thu, Aug 27 - Thu, Sep 3

4:50 pm - 10:51 pm

TYS

BIL

8h 01m

1 stop

7:00 am - 3:54 pm

BIL

TYS

6h 54m

1 stop

$478United Airlines

Wed, Aug 12 - Wed, Aug 19

2:00 pm - 8:51 pm

TYS

BIL

8h 51m

2 stops

2:40 pm - 10:20 pm

BIL

TYS

5h 40m

1 stop

$483United Airlines

Tue, Oct 27 - Sat, Oct 31

4:25 pm - 8:51 pm

TYS

BIL

6h 26m

1 stop

2:40 pm - 10:20 pm

BIL

TYS

5h 40m

1 stop

$484United Airlines

Fri, Oct 30 - Mon, Nov 2

6:20 pm - 11:15 pm

TYS

BIL

6h 55m

1 stop

6:25 pm - 3:25 pm

BIL

TYS

19h 00m

2 stops

$493Delta

Tue, Sep 8 - Sun, Sep 13

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American Airlines flights from Knoxville to Billings

Our best American Airlines deals on Knoxville to Billings flight tickets

American Airlines

Aug 12

TYS7:34 amKnoxville McGhee Tyson

6h 16m

1 stop

BIL11:50 amBillings Logan Intl

Aug 19

BIL1:13 pmBillings Logan Intl

8h 05m

1 stop

TYS11:18 pmKnoxville McGhee Tyson

$497

American Airlines

Aug 12

TYS5:15 amKnoxville McGhee Tyson

8h 35m

2 stops

BIL11:50 amBillings Logan Intl

Aug 19

BIL1:13 pmBillings Logan Intl

8h 05m

1 stop

TYS11:18 pmKnoxville McGhee Tyson

$502

American Airlines

Sep 14

TYS5:35 pmKnoxville McGhee Tyson

6h 35m

1 stop

BIL10:10 pmBillings Logan Intl

Sep 25

BIL12:28 pmBillings Logan Intl

20h 22m

1 stop

TYS10:50 amKnoxville McGhee Tyson

$519

United Airlines flights from Knoxville to Billings

Our best United Airlines deals on Knoxville to Billings flight tickets

United Airlines

Aug 21

TYS4:50 pmKnoxville McGhee Tyson

6h 10m

1 stop

BIL9:00 pmBillings Logan Intl

Aug 28

BIL2:29 pmBillings Logan Intl

6h 00m

1 stop

TYS10:29 pmKnoxville McGhee Tyson

$329

United Airlines

Aug 21

TYS3:40 pmKnoxville McGhee Tyson

9h 11m

2 stops

BIL10:51 pmBillings Logan Intl

Aug 28

BIL2:29 pmBillings Logan Intl

6h 00m

1 stop

TYS10:29 pmKnoxville McGhee Tyson

$334

United Airlines

Oct 27

TYS8:45 amKnoxville McGhee Tyson

6h 28m

1 stop

BIL1:13 pmBillings Logan Intl

Oct 31

BIL2:40 pmBillings Logan Intl

5h 40m

1 stop

TYS10:20 pmKnoxville McGhee Tyson

$419

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KnoxvilleBillings

TYS - BIL

TYSBIL

Knoxville McGhee Tyson

Fri 8/21

4:50 pm-9:00 pm

1 stop6h 10m

Billings Logan Intl

Fri 8/28

2:29 pm-10:29 pm

1 stop6h 00m

$329

KnoxvilleBillings

TYS - BIL

TYSBIL

Knoxville McGhee Tyson

Fri 8/21

3:40 pm-10:51 pm

2 stops9h 11m

Billings Logan Intl

Fri 8/28

2:29 pm-10:29 pm

1 stop6h 00m

$334

KnoxvilleBillings

TYS - BIL

TYSBIL

Knoxville McGhee Tyson

Tue 9/8

6:20 pm-11:15 pm

1 stop6h 55m

Billings Logan Intl

Tue 9/15

6:33 pm-9:39 am

2 stops13h 06m

$379

KnoxvilleBillings

TYS - BIL

TYSBIL

Knoxville McGhee Tyson

Tue 9/8

6:20 pm-11:15 pm

1 stop6h 55m

Billings Logan Intl

Mon 9/14

12:57 pm-11:50 pm

2 stops8h 53m

$399

KnoxvilleBillings

TYS - BIL

TYSBIL

Knoxville McGhee Tyson

Tue 10/27

8:45 am-1:13 pm

1 stop6h 28m

Billings Logan Intl

Sat 10/31

2:40 pm-10:20 pm

1 stop5h 40m

$419

KnoxvilleBillings

TYS - BIL

TYSBIL

Knoxville McGhee Tyson

Thu 8/27

4:50 pm-9:00 pm

1 stop6h 10m

Billings Logan Intl

Thu 9/3

7:00 am-3:54 pm

1 stop6h 54m

$469

KnoxvilleBillings

TYS - BIL

TYSBIL

Knoxville McGhee Tyson

Wed 8/12

4:50 pm-10:51 pm

1 stop8h 01m

Billings Logan Intl

Wed 8/19

7:00 am-3:54 pm

1 stop6h 54m

$478

KnoxvilleBillings

TYS - BIL

TYSBIL

Knoxville McGhee Tyson

Tue 10/27

2:00 pm-8:51 pm

2 stops8h 51m

Billings Logan Intl

Sat 10/31

2:40 pm-10:20 pm

1 stop5h 40m

$483

Quickest round-trip

KnoxvilleBillings

TYS - BIL

TYSBIL

Knoxville McGhee Tyson

Fri 10/30

4:25 pm-8:51 pm

1 stop6h 26m

Billings Logan Intl

Mon 11/2

2:40 pm-10:20 pm

1 stop5h 40m

$484

KnoxvilleBillings

TYS - BIL

TYSBIL

Knoxville McGhee Tyson

Tue 9/8

6:20 pm-11:15 pm

1 stop6h 55m

Billings Logan Intl

Sun 9/13

6:25 pm-3:25 pm

2 stops19h 00m

$493

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first

How to get the cheapest flight ticket from Knoxville to Billings

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

Prices

Airlines

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

What is the cheapest month to fly to Billings?

The month of April is, on average, the cheapest month to fly to Billings from Knoxville, with most prices found around $0. The month of March is another great option to travel to Billings, with average flight prices from Knoxville averaging around $220.

Can stopping save me money on Knoxville to Billings flights?

You could potentially save up to 45% on your flight if you consider stops on a Knoxville to Billings flight.

When to book flights from Knoxville to Billings

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

Estimated round-trip price

Cheap Knoxville to Billings (TYS to BIL) flight deals and tips

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

Fastest flight time	5h 46m
Direct flights	None

The fastest flight from Knoxville to Billings takes 5h 46m

There are no direct flights from Knoxville to Billings. There are no popular flight routes from Knoxville to Billings.

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Frequently asked questions about flying from Knoxville to Billings

How far is Knoxville McGhee Tyson to Billings Logan Intl by plane?
Knoxville McGhee Tyson and Billings Logan Intl are 1443.2 mi apart from one another. A reasonable flight in good conditions will take 5h 46m.
When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to Billings Logan Intl Airport?
Prices for flights from Knoxville McGhee Tyson Airport to Billings Logan Intl Airport were last updated today.
How many operators does momondo search for flights from Knoxville McGhee Tyson Airport to Billings Logan Intl Airport?
As of June 2026, there are 2 operators available to choose from for flights from Knoxville McGhee Tyson Airport to Billings Logan Intl Airport.
How old do you have to be to fly from Knoxville McGhee Tyson Airport to Billings Logan Intl Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Knoxville McGhee Tyson Airport to Billings Logan Intl Airport.
What documentation or ID do you need to fly to Billings Logan Intl Airport?
The necessary travel and health documents for your Billings Logan Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Knoxville to Billings?
momondo data reveals that the most frequently booked airline on the route from Knoxville to Billings is United Airlines, representing 54% of all bookings. The subsequent popular airline is American Airlines at 46%.

Best airlines flying from Knoxville to Billings

Compare and see reviews for airlines that fly from Knoxville to Billings with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $274	Free Cancellation	Rating 7.1 11,670 reviews		Search American Airlines flights
United Airlines	PriceFrom $318	Free Cancellation	Rating 7.4 9,845 reviews		Search United Airlines flights

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Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Knoxville to Billings for you.

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

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

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

momondo provides multiple filters to help you find the best flight to Billings from Knoxville. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes. momondo can track prices for Knoxville to Billings flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.