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Cheap flights from Billings to Knoxville from $388

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Billings to Knoxville departing on 4/21. 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
0 bags

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Find the cheapest flights from Billings to Knoxville

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
1:51 pm - 11:56 pm
BIL
-
TYS
8h 05m
1 stop
American Airlines Logo
4:09 pm - 10:43 pm
TYS
-
BIL
8h 34m
1 stop
$388American Airlines
Tue, Apr 21 - Fri, May 8
American Airlines Logo
1:51 pm - 11:56 pm
BIL
-
TYS
8h 05m
1 stop
American Airlines Logo
4:09 pm - 10:43 pm
TYS
-
BIL
8h 34m
1 stop
$443American Airlines
Tue, Apr 21 - Fri, May 8
American Airlines Logo
6:00 am - 9:26 pm
BIL
-
TYS
13h 26m
2 stops
American Airlines Logo
4:09 pm - 10:43 pm
TYS
-
BIL
8h 34m
1 stop
$448American Airlines
Tue, Apr 21 - Fri, May 8
Delta Logo
6:24 am - 5:08 pm
BIL
-
TYS
8h 44m
2 stops
Delta Logo
5:30 pm - 11:03 pm
TYS
-
BIL
7h 33m
2 stops
$484Delta
Tue, Apr 21 - Fri, May 8
United Airlines Logo
2:35 pm - 10:29 pm
BIL
-
TYS
5h 54m
1 stop
United Airlines Logo
5:56 pm - 8:57 pm
TYS
-
BIL
29h 01m
2 stops
$488United Airlines
Tue, Apr 21 - Fri, May 8
United Airlines Logo
7:00 am - 3:53 pm
BIL
-
TYS
6h 53m
1 stop
United Airlines Logo
4:56 pm - 9:17 pm
TYS
-
BIL
6h 21m
1 stop
$591United Airlines
Tue, Jun 2 - Fri, Jun 5
United Airlines Logo
10:40 am - 12:30 am
BIL
-
TYS
11h 50m
2 stops
United Airlines Logo
4:56 pm - 9:17 pm
TYS
-
BIL
6h 21m
1 stop
$596United Airlines
Tue, Jun 2 - Fri, Jun 5
United Airlines Logo
10:38 am - 11:41 pm
BIL
-
TYS
11h 03m
2 stops
United Airlines Logo
1:52 pm - 1:23 pm
TYS
-
BIL
25h 31m
3 stops
$620United Airlines
Tue, Apr 21 - Fri, May 8
United Airlines Logo
10:40 am - 12:30 am
BIL
-
TYS
11h 50m
2 stops
United Airlines Logo
4:56 pm - 9:17 pm
TYS
-
BIL
6h 21m
1 stop
$631United Airlines
Tue, Jun 2 - Fri, Jun 5
United Airlines Logo
4:10 pm - 10:05 am
BIL
-
TYS
15h 55m
2 stops
United Airlines Logo
5:57 pm - 9:35 am
TYS
-
BIL
17h 38m
2 stops
$656United Airlines
Tue, Jun 2 - Fri, Jun 5

American Airlines flights from Billings to Knoxville

Our best American Airlines deals on Billings to Knoxville flight tickets
American Airlines
Apr 21
BIL1:51 pmBillings Logan Intl
8h 05m
1 stop
TYS11:56 pmKnoxville McGhee Tyson
May 8
TYS4:09 pmKnoxville McGhee Tyson
8h 34m
1 stop
BIL10:43 pmBillings Logan Intl
$388
American Airlines
Apr 21
BIL1:51 pmBillings Logan Intl
8h 05m
1 stop
TYS11:56 pmKnoxville McGhee Tyson
May 8
TYS4:09 pmKnoxville McGhee Tyson
8h 34m
1 stop
BIL10:43 pmBillings Logan Intl
$443
American Airlines
Feb 27
BIL7:25 amBillings Logan Intl
14h 30m
2 stops
TYS11:55 pmKnoxville McGhee Tyson
Mar 3
TYS12:22 pmKnoxville McGhee Tyson
11h 50m
2 stops
BIL10:12 pmBillings Logan Intl
$449

United Airlines flights from Billings to Knoxville

Our best United Airlines deals on Billings to Knoxville flight tickets
United Airlines
Feb 27
BIL2:35 pmBillings Logan Intl
5h 55m
1 stop
TYS10:30 pmKnoxville McGhee Tyson
Mar 3
TYS4:15 pmKnoxville McGhee Tyson
7h 06m
1 stop
BIL9:21 pmBillings Logan Intl
$439
United Airlines
Feb 27
BIL2:35 pmBillings Logan Intl
5h 55m
1 stop
TYS10:30 pmKnoxville McGhee Tyson
Mar 3
TYS6:45 amKnoxville McGhee Tyson
8h 38m
2 stops
BIL1:23 pmBillings Logan Intl
$444
United Airlines
Feb 25
BIL7:00 amBillings Logan Intl
6h 05m
1 stop
TYS3:05 pmKnoxville McGhee Tyson
Feb 28
TYS9:10 amKnoxville McGhee Tyson
10h 02m
2 stops
BIL5:12 pmBillings Logan Intl
$474

momondo Fare Finder

 
Customize your flight search to find flights from Billings 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 February 24, 2026.
Use the filters below to find and compare flights from Billings to Knoxville that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BillingsKnoxville

BIL - TYS

BILTYS

Billings Logan Intl

Tue 4/21

1:51 pm-11:56 pm

1 stop8h 05m

Knoxville McGhee Tyson

Fri 5/8

4:09 pm-10:43 pm

1 stop8h 34m

$388

BillingsKnoxville

BIL - TYS

BILTYS

Billings Logan Intl

Tue 4/21

1:51 pm-11:56 pm

1 stop8h 05m

Knoxville McGhee Tyson

Fri 5/8

4:09 pm-10:43 pm

1 stop8h 34m

$443

BillingsKnoxville

BIL - TYS

BILTYS

Billings Logan Intl

Tue 4/21

6:00 am-9:26 pm

2 stops13h 26m

Knoxville McGhee Tyson

Fri 5/8

4:09 pm-10:43 pm

1 stop8h 34m

$448

BillingsKnoxville

BIL - TYS

BILTYS

Billings Logan Intl

Tue 4/21

6:24 am-5:08 pm

2 stops8h 44m

Knoxville McGhee Tyson

Fri 5/8

5:30 pm-11:03 pm

2 stops7h 33m

$484

BillingsKnoxville

BIL - TYS

BILTYS

Billings Logan Intl

Tue 4/21

2:35 pm-10:29 pm

1 stop5h 54m

Knoxville McGhee Tyson

Fri 5/8

5:56 pm-8:57 pm

2 stops29h 01m

$488

BillingsKnoxville

BIL - TYS

BILTYS

Billings Logan Intl

Tue 6/2

7:00 am-3:53 pm

1 stop6h 53m

Knoxville McGhee Tyson

Fri 6/5

4:56 pm-9:17 pm

1 stop6h 21m

$591

BillingsKnoxville

BIL - TYS

BILTYS

Billings Logan Intl

Tue 6/2

10:40 am-12:30 am

2 stops11h 50m

Knoxville McGhee Tyson

Fri 6/5

4:56 pm-9:17 pm

1 stop6h 21m

$596

BillingsKnoxville

BIL - TYS

BILTYS

Billings Logan Intl

Tue 4/21

10:38 am-11:41 pm

2 stops11h 03m

Knoxville McGhee Tyson

Fri 5/8

1:52 pm-1:23 pm

3 stops25h 31m

$620

BillingsKnoxville

BIL - TYS

BILTYS

Billings Logan Intl

Tue 6/2

10:40 am-12:30 am

2 stops11h 50m

Knoxville McGhee Tyson

Fri 6/5

4:56 pm-9:17 pm

1 stop6h 21m

$631

BillingsKnoxville

BIL - TYS

BILTYS

Billings Logan Intl

Tue 6/2

4:10 pm-10:05 am

2 stops15h 55m

Knoxville McGhee Tyson

Fri 6/5

5:57 pm-9:35 am

2 stops17h 38m

$656

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
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See travel insights to Knoxville from

How to get the cheapest flight ticket from Billings 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 cheapest month to fly to Knoxville?

The month of December is, on average, the cheapest month to fly to Knoxville from Billings, with most prices found around $377. If you aren’t able to travel during the month of December, then book flights to Knoxville from Billings during September instead. Flights to Knoxville in September, while not as cheap as those in December, still average around $424.

Can stopping save me money on Billings to Knoxville flights?

You could potentially save up to 50% on your flight if you consider stops on a Billings to Knoxville flight.

When to book flights from Billings to Knoxville

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

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

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

Fastest flight time

5h 55m

Direct flights

None
The fastest flight from Billings to Knoxville takes 5h 55m
There are no direct flights from Billings to Knoxville. There are no popular flight routes from Billings to Knoxville.
Search flight deals

  • How far is Billings Logan Intl to Knoxville McGhee Tyson by plane?

    Knoxville McGhee Tyson is 1443.2 mi away from Billings Logan Intl. 5h 55m is a normal flight duration for this route.

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

    Prices for flights from Billings Logan Intl Airport to Knoxville McGhee Tyson Airport refresh daily.

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

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

Best airlines flying from Billings to Knoxville

Compare and see reviews for airlines that fly from Billings to Knoxville with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $268Free CancellationRating
7.2
11,344 reviews
Search American Airlines flights
United AirlinesPriceFrom $340Free CancellationRating
7.4
9,344 reviews
Search United 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
Maryville
Alcoa
Crossville
Murphy
Oak Ridge
Lenoir City
Newport
Kodak
Dandridge
Jefferson City
Clinton
Rockford

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Billings to Knoxville. Millions of users trust and use momondo every year so you are in good hands.

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

Flights from Billings to Knoxville with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

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

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

Yes momondo offers price alerts on flights to Knoxville from Billings. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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