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$344+ Cheap flights from Knoxville to Billings (TYS - BIL)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/7. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — BIL
Apr 13 — Apr 201
Mon 4/13
Mon 4/20
1 adult, Economy
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Cheap 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 March 14, 2026.

This United Airlines deal was found by Cheapflights users on 3/10. 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.
Tue 4/74:30 pm
TYS
-
BIL
1 stop6h 27m
United Airlines
Tue 4/147:00 am
BIL
-
TYS
1 stop6h 06m
United Airlines
Deal found 3/10$344
This United Airlines deal was found by Cheapflights users on 3/10. 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.
Fri 9/44:56 pm
TYS
-
BIL
1 stop6h 04m
United Airlines
Tue 9/87:00 am
BIL
-
TYS
1 stop6h 54m
United Airlines
Deal found 3/10$351
This American Airlines deal was found by Cheapflights users on 3/10. 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.
Wed 4/84:09 pm
TYS
-
BIL
1 stop8h 34m
American Airlines
Wed 4/151:51 pm
BIL
-
TYS
1 stop8h 05m
American Airlines
Deal found 3/10$354
This American Airlines deal was found by Cheapflights users on 3/12. 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.
Fri 3/274:29 pm
TYS
-
BIL
1 stop7h 40m
American Airlines
Tue 3/311:48 pm
BIL
-
TYS
1 stop7h 32m
American Airlines
Deal found 3/12$379
This United Airlines deal was found by Cheapflights users on 3/9. 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.
Sat 11/78:45 am
TYS
-
BIL
1 stop6h 28m
United Airlines
Tue 11/105:00 am
BIL
-
TYS
1 stop7h 36m
United Airlines
Deal found 3/9$409
This American Airlines deal was found by Cheapflights users on 3/10. 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.
Wed 3/254:29 pm
TYS
-
BIL
1 stop7h 40m
American Airlines
Sun 3/295:27 am
BIL
-
TYS
1 stop8h 10m
American Airlines
Deal found 3/10$424

Find 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 March 14, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$344
(United Airlines)

Popular in

December

Cheapest in

March

Average price

$293
Provider with most accurate pricing for Knoxville McGhee Tyson-Billings Logan Intl flight deals.
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Provider most trusted by Cheapflights users for Knoxville McGhee Tyson-Billings Logan Intl flights.
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From Knoxville McGhee Tyson to Billings Logan Intl
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($74 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in March 2026
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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 March 14, 2026.
Use the filters below to find and compare flights from Knoxville to Billings that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

KnoxvilleBillings

TYS - BIL

TYSBIL

Knoxville McGhee Tyson

Tue 4/7

4:30 pm-8:57 pm

1 stop6h 27m

Billings Logan Intl

Tue 4/14

7:00 am-3:06 pm

1 stop6h 06m

$344

KnoxvilleBillings

TYS - BIL

TYSBIL

Knoxville McGhee Tyson

Fri 3/27

12:21 pm-10:59 pm

2 stops12h 38m

Billings Logan Intl

Tue 3/31

5:16 am-3:37 pm

1 stop8h 21m

$384

KnoxvilleBillings

TYS - BIL

TYSBIL

Knoxville McGhee Tyson

Wed 4/8

4:30 pm-8:57 pm

1 stop6h 27m

Billings Logan Intl

Wed 4/15

10:38 am-11:41 pm

2 stops11h 03m

$414

KnoxvilleBillings

TYS - BIL

TYSBIL

Knoxville McGhee Tyson

Wed 3/25

11:45 am-10:59 pm

2 stops13h 14m

Billings Logan Intl

Sun 3/29

5:27 am-9:24 pm

2 stops13h 57m

$669

KnoxvilleBillings

TYS - BIL

TYSBIL

Knoxville McGhee Tyson

Sun 6/7

8:20 am-10:15 pm

1 stop15h 55m

Billings Logan Intl

Sat 6/13

8:45 am-4:51 pm

1 stop6h 06m

$681

KnoxvilleBillings

TYS - BIL

TYSBIL

Knoxville McGhee Tyson

Mon 3/23

11:40 am-1:23 pm

2 stops27h 43m

Billings Logan Intl

Mon 3/30

2:35 pm-10:29 pm

1 stop5h 54m

$759

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/10

Sorted by cheapest first

Compare providers for flights from Knoxville to Billings

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Knoxville to Billings in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Knoxville-Billings flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Knoxville-Billings flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Knoxville-Billings flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Knoxville-Billings flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Knoxville-Billings flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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, March is the cheapest month in which you can book a flight from Knoxville to Billings (average of $227). Flying from Knoxville to Billings in December is currently the most expensive (average of $525). 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 March 14, 2026.
See what other customers who have flown with 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.
United Airlines
7.4
Good
9,423 reviews

Comfort

7.3

Crew

8.1

Overall

7.4

Boarding

7.7

Entertainment

7.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,423 reviews
United Airlines
7.4
Good
9,423 reviews

Comfort

7.3

Crew

8.1

Overall

7.4

Boarding

7.7

Entertainment

7.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
American Airlines
7.1
Good
11,464 reviews
United Airlines
7.4
Good
9,423 reviews

Comfort

7.3

Crew

8.1

Overall

7.4

Boarding

7.7

Entertainment

7.1

Food

6.6

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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.

  • How long is the flight from Knoxville to Billings?

    There are many flights that can get you from Knoxville to Billings in 6h 27m. Fly via United Airlines or American Airlines to get the fastest option. There are 1449 mi between Knoxville and Billings. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    According to our current data, United Airlines ($268), and American Airlines ($323) offers the cheapest pricing from Knoxville to Billings. You may be able to fly from Knoxville to Billings for 36% less than the average price by searching for these airlines.

  • 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, March is the cheapest month in which you can book a flight from Knoxville to Billings (average of $227). Flying from Knoxville to Billings in December is currently the most expensive (average of $525). 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

Browse thousands of different options on Cheapflights for your next trip

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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 March 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$268Average$431FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$323Average$416FlexibilityNo cancel feeOn-time71%

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