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$375+ Cheap flights from Billings to Knoxville (BIL - TYS)

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 9/19. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — TYS
Sep 1 — Sep 81
Tue 9/1
Tue 9/8
1 adult, Economy
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Cheap flight deals from Billings to Knoxville

Cheapest flights from Billings to Knoxville
Explore the most affordable flight options available from Billings to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 2, 2026.

This United Airlines deal was found by Cheapflights users on 7/30. 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 8/257:00 am
BIL
-
TYS
1 stop6h 54m
United Airlines
Sat 8/294:50 pm
TYS
-
BIL
1 stop7h 17m
United Airlines
Deal found 7/30$429
This United Airlines deal was found by Cheapflights users on 7/28. 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.
Wed 8/125:07 am
BIL
-
TYS
1 stop8h 47m
United Airlines
Sun 8/164:50 pm
TYS
-
BIL
1 stop6h 10m
United Airlines
Deal found 7/28$483
This American Airlines deal was found by Cheapflights users on 8/2. 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.
Tue 10/271:21 pm
BIL
-
TYS
1 stop7h 57m
American Airlines
Sun 11/12:55 pm
TYS
-
BIL
1 stop7h 45m
American Airlines
Deal found 8/2$484
This Delta deal was found by Cheapflights users on 8/1. 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.
Thu 9/106:23 am
BIL
-
TYS
1 stop8h 19m
Delta
Mon 9/216:20 pm
TYS
-
BIL
1 stop6h 55m
Delta
Deal found 8/1$509
This American Airlines deal was found by Cheapflights users on 8/1. 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 9/107:00 am
BIL
-
TYS
2 stops13h 50m
American Airlines
Mon 9/215:35 pm
TYS
-
BIL
1 stop6h 35m
American Airlines
Deal found 8/1$530

Find flight deals from Billings to Knoxville

Discover tips and strategies to find the most affordable flight options for your journey from Billings (BIL) to Knoxville (TYS). 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 August 2, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$429
(United Airlines)

One-way from

$375
(Delta)

Popular in

June

Cheapest in

September

Average price

$560
Provider with most accurate pricing for Billings Logan Intl-Knoxville McGhee Tyson flight deals.
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Provider most trusted by Cheapflights users for Billings Logan Intl-Knoxville McGhee Tyson flights.
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From Billings Logan Intl to Knoxville McGhee Tyson
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One-way flight from Billings Logan Intl to Knoxville McGhee Tyson
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Highest demand for flights based on searches. 26% potential increase in price ($205 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in August 2026
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Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated August 2, 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

Cheapest round-trip
Quickest round-trip

BillingsKnoxville

BIL - TYS

BILTYS

Billings Logan Intl

Tue 8/25

7:00 am-3:54 pm

1 stop6h 54m

Knoxville McGhee Tyson

Sat 8/29

4:50 pm-10:07 pm

1 stop7h 17m

$429

BillingsKnoxville

BIL - TYS

BILTYS

Billings Logan Intl

Wed 8/12

5:07 am-3:54 pm

1 stop8h 47m

Knoxville McGhee Tyson

Sun 8/16

4:50 pm-9:00 pm

1 stop6h 10m

$483

BillingsKnoxville

BIL - TYS

BILTYS

Billings Logan Intl

Thu 9/10

6:23 am-4:42 pm

1 stop8h 19m

Knoxville McGhee Tyson

Mon 9/21

6:20 pm-11:15 pm

1 stop6h 55m

$509
Cheapest one-way
Quickest one-way

BillingsKnoxville

BIL - TYS

BILTYS

Billings Logan Intl

Sat 9/19

1:13 pm-11:22 pm

1 stop8h 09m

$375

BillingsKnoxville

BIL - TYS

BILTYS

Billings Logan Intl

Sat 9/19

5:20 am-7:38 pm

2 stops12h 18m

$375

BillingsKnoxville

BIL - TYS

BILTYS

Billings Logan Intl

Sat 9/19

5:00 am-10:49 pm

3 stops15h 49m

$583

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Sorted by cheapest first

Compare providers for flights from Billings to Knoxville

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 Billings to Knoxville in August.
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 Billings-Knoxville flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Billings-Knoxville flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Billings-Knoxville flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Billings-Knoxville 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 Billings-Knoxville 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 Billings to Knoxville

Have a flexible travel schedule? Discover the best time to fly to Knoxville from Billings 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.

Reviews of airlines servicing Knoxville

Get insights into the airlines that provide service to Knoxville. 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 Knoxville. Reviews last updated August 2, 2026.
Read reviews from past customers who have flown United Airlines and American Airlines from Billings to Knoxville. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,061 reviews

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

Overall

7.4

Reviews

1 / 20
6.0
Good

Dawn,Jul 2026

ORD - GRR

The crew aboard the plane were not very friendly. They definitely acted like it was a chore to be there.
United Airlines
7.4
Good
10,061 reviews
United Airlines
7.4
Good
10,061 reviews

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

Overall

7.4

Reviews

1 / 20
6.0
Good

Dawn,Jul 2026

ORD - GRR

The crew aboard the plane were not very friendly. They definitely acted like it was a chore to be there.
American Airlines
7.1
Good
11,846 reviews
United Airlines
7.4
Good
10,061 reviews

Entertainment

7.1

Comfort

7.3

Boarding

7.7

Crew

8.1

Food

6.6

Overall

7.4

Reviews

1 / 20
6.0
Good

Dawn,Jul 2026

ORD - GRR

The crew aboard the plane were not very friendly. They definitely acted like it was a chore to be there.

Related info for your journey

Find useful and relevant information for your journey from Billings to Knoxville. 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 Billings to Knoxville?

    For as low as $429, United Airlines can have you in Knoxville from Billings in 6h 54m. There are 1449 mi between Billings and Knoxville.

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

    Our cheapest airline available from Billings to Knoxville is American Airlines. Our recent data shows that you can find tickets from as low as $268 on this airline. An additional option worth looking into is United Airlines, starting at $340. These flights start at 53% lower than the current average price 3 months from now.

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

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

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

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

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

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

See more FAQs

Traveling to a place near Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
Cherokee
Crossville
Morristown
Bryson City
Murphy
Alcoa

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Top 2 airlines flying from Billings to Knoxville

Discover the top 2 airlines that operate flights from Billings to Knoxville. 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 August 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$268Average$524FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$340Average$510FlexibilityNo cancel feeOn-time69%

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