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$174+ Cheap flights from Knoxville to Billings (TYS - BIL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — BIL
Aug 3 — Aug 101
Sun 8/3
Sun 8/10
1 adult, Economy
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Cheap flight deals from Knoxville to Billings

Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to Billings (BIL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated July 29, 2025.

Round-trip from

$269
(American Airlines)

One-way from

$174
(Mytrip)

Popular in

November

Cheapest in

April

Average price

$465
From Knoxville McGhee Tyson to Billings Logan Intl
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One-way flight from Knoxville McGhee Tyson to Billings Logan Intl
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Highest demand for flights based on searches. 13% potential increase in price ($75 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Knoxville to Billings

Cheapest flights from Knoxville to Billings
Explore the most affordable flight options available from Knoxville to Billings. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 29, 2025.

This American Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/44:48 pmTYS - BIL
1 stop6h 09mAmerican Airlines
Tue 9/912:19 pmBIL - TYS
1 stop6h 41mAmerican Airlines
Deal found 7/29$269
This Delta deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/266:03 pmTYS - BIL
1 stop7h 09mDelta
Wed 8/276:25 amBIL - TYS
2 stops7h 09mDelta
Deal found 7/26$372
This United Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/247:00 amTYS - BIL
1 stop6h 16mUnited Airlines
Sun 8/315:00 amBIL - TYS
2 stops10h 00mUnited Airlines
Deal found 7/26$439

Cheapflights Fare Finder

 
Customize your flight search to find flights from Knoxville to Billings 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, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2025.
Use the filters below to find and compare flights from Knoxville to Billings that are best for you.

Fly from

Knoxville

Fly to

Billings

Route

Depart

Return

Price

KnoxvilleBillings

TYS - BIL

TYSBIL

Knoxville McGhee Tyson

Thu 9/4

4:48 pm-8:57 pm

1 stop6h 09m

Billings Logan Intl

Tue 9/9

12:19 pm-9:00 pm

1 stop6h 41m

$269

KnoxvilleBillings

TYS - BIL

TYSBIL

Knoxville McGhee Tyson

Tue 8/26

6:03 pm-11:12 pm

1 stop7h 09m

Billings Logan Intl

Sun 8/31

5:25 am-3:34 pm

2 stops8h 09m

$329

KnoxvilleBillings

TYS - BIL

TYSBIL

Knoxville McGhee Tyson

Sun 8/24

7:00 am-11:16 am

1 stop6h 16m

Billings Logan Intl

Sun 8/31

5:00 am-5:00 pm

2 stops10h 00m

$439

KnoxvilleBillings

TYS - BIL

TYSBIL

Knoxville McGhee Tyson

Mon 9/15

8:30 am-8:43 pm

1 stop14h 13m

$174

KnoxvilleBillings

TYS - BIL

TYSBIL

Knoxville McGhee Tyson

Mon 8/11

6:03 pm-11:10 pm

1 stop7h 07m

$261

KnoxvilleBillings

TYS - BIL

TYSBIL

Knoxville McGhee Tyson

Mon 9/15

2:30 pm-10:46 pm

2 stops10h 16m

$269

KnoxvilleBillings

TYS - BIL

TYSBIL

Knoxville McGhee Tyson

Tue 8/12

5:27 pm-11:00 pm

1 stop7h 33m

$276

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/27

Best time to book a flight from Knoxville to Billings

Have a flexible travel schedule? Discover the best time to fly to Billings from Knoxville with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Knoxville to Billings

What is the cheapest month to book a flight from Knoxville to Billings?

Currently, January is the cheapest month in which you can book a flight from Knoxville to Billings (average of $396). Flying from Knoxville to Billings in June is currently the most expensive (average of $512). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Knoxville to Billings?

Reviews of airlines servicing Billings

Get insights into the airlines that provide service to Billings. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Billings. Reviews last updated July 29, 2025.
See what other customers who have flown with Delta, United Airlines, and American Airlines from Knoxville to Billings have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,977 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,977 reviews
Delta
8.0
Very good
7,977 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,899 reviews
Delta
8.0
Very good
7,977 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,977 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Allegiant Air
7.2
Good
703 reviews
Delta
8.0
Very good
7,977 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.9

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Knoxville to Billings. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What are the cheapest airlines flying from Knoxville to Billings round-trip?

    According to our current data, American Airlines ($269), Delta ($329), and United Airlines ($439) offers the cheapest pricing from Knoxville to Billings. You may be able to fly from Knoxville to Billings for 46% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Knoxville to Billings one-way?

    $174 is the cheapest one-way deal found within the past few days, from Allegiant Air. You may also be able to find cheap deals on Delta and United Airlines, with prices starting from $261 and $269, respectively.

  • Can I find deals for flights from Knoxville to Billings that include hotel bookings?

    Yes. In addition to deals on Knoxville to Billings flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Knoxville to Billings?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Knoxville to Billings.

  • Can I find deals for business class flights from Knoxville to Billings?

    Yes. Cheapflights offers flight deals from Knoxville to Billings by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Knoxville to Billings?

    Currently, January is the cheapest month in which you can book a flight from Knoxville to Billings (average of $396). Flying from Knoxville to Billings in June is currently the most expensive (average of $512). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 2 airlines flying from Knoxville to Billings

Discover the top 2 airlines that operate flights from Knoxville to Billings. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$293Average$503FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$323Average$499FlexibilityNo cancel feeOn-time71%

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