$359+ Cheap flights from Billings to Knoxville (BIL - TYS)
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 11/3. Fares are subject to change and may not be available on all flights or dates of travel.
BIL — TYS
Oct 16 — Oct 231
Round-trip
1 adult, Economy
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Find cheap flights from Billings to Knoxville with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Billings to Knoxville
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Cheapest flights from Billings to KnoxvilleExplore 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 September 16, 2026.
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 September 16, 2026.
This American Airlines deal was found by Cheapflights users on 9/12. 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.
Tue 11/31:54 pm -
1 stop7h 38m
Tue 11/102:55 pm -
1 stop7h 45m
Deal found 9/12![American Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 9/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/32:42 pm -
1 stop5h 50m
Tue 11/1010:45 am -
2 stops12h 29m
Deal found 9/12![United Airlines logo]()
$364
This Delta deal was found by Cheapflights users on 9/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/36:30 am -
2 stops11h 19m
Wed 11/1111:43 am -
2 stops9h 54m
Deal found 9/12![Delta logo]()
$369
This Delta deal was found by Cheapflights users on 9/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/412:58 pm -
2 stops8h 04m
Wed 11/1111:43 am -
2 stops9h 54m
Deal found 9/12![Delta logo]()
$428
This United Airlines deal was found by Cheapflights users on 9/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/22:42 pm -
1 stop5h 50m
Wed 11/115:05 pm -
1 stop7h 25m
Deal found 9/12![United Airlines logo]()
$449
This United Airlines deal was found by Cheapflights users on 9/15. 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 11/132:42 pm -
1 stop5h 50m
Mon 11/165:05 pm -
1 stop6h 09m
Deal found 9/15![United Airlines logo]()
$452
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Thu 10/292:42 pm -
1 stop5h 50m
Mon 11/25:05 pm -
1 stop7h 25m
Deal found 9/14![United Airlines logo]()
$480
This American Airlines deal was found by Cheapflights users on 9/14. 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 10/296:00 am -
2 stops12h 18m
Mon 11/22:55 pm -
1 stop7h 45m
Deal found 9/14![American Airlines logo]()
$498
This United Airlines deal was found by Cheapflights users on 9/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/25:00 am -
2 stops9h 59m
Tue 11/105:05 pm -
1 stop7h 25m
Deal found 9/12![United Airlines logo]()
$499
This United Airlines deal was found by Cheapflights users on 9/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/47:00 am -
2 stops7h 59m
Tue 11/105:05 pm -
1 stop6h 09m
Deal found 9/12![United Airlines logo]()
$543
Best flights from Billings to KnoxvilleDiscover carefully curated flight deals from Billings to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 16, 2026.
Discover carefully curated flight deals from Billings to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 16, 2026.
This United Airlines deal was found by Cheapflights users on 9/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/32:42 pm -
1 stop5h 50m
Tue 11/1010:45 am -
2 stops12h 29m
Deal found 9/12![United Airlines logo]()
$364
This Delta deal was found by Cheapflights users on 9/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/166:32 am -
2 stops11h 42m
Fri 12/2510:56 am -
2 stops10h 52m
Deal found 9/12![Delta logo]()
$559
This United Airlines deal was found by Cheapflights users on 9/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/35:00 am -
1 stop8h 01m
Wed 11/115:05 pm -
1 stop6h 09m
Deal found 9/12![United Airlines logo]()
$449
This United Airlines deal was found by Cheapflights users on 9/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/22:42 pm -
1 stop5h 50m
Wed 11/116:45 am -
2 stops8h 44m
Deal found 9/12![United Airlines logo]()
$454
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Thu 10/292:42 pm -
1 stop5h 50m
Mon 11/25:05 pm -
1 stop7h 25m
Deal found 9/14![United Airlines logo]()
$480
This United Airlines deal was found by Cheapflights users on 9/15. 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 1/307:00 am -
1 stop5h 36m
Wed 2/34:25 pm -
1 stop6h 54m
Deal found 9/15![United Airlines logo]()
$484
This United Airlines deal was found by Cheapflights users on 9/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/47:00 am -
2 stops7h 59m
Tue 11/105:05 pm -
1 stop6h 09m
Deal found 9/12![United Airlines logo]()
$543
This United Airlines deal was found by Cheapflights users on 9/15. 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 12/167:00 am -
1 stop5h 41m
Fri 12/259:30 am -
2 stops13h 45m
Deal found 9/15![United Airlines logo]()
$557
Last-minute flights from Billings to KnoxvilleDiscover last-minute flight deals from Billings to Knoxville. Data last updated September 16, 2026 and is based on user searches.
Discover last-minute flight deals from Billings to Knoxville. Data last updated September 16, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/16. 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.
Sun 10/412:28 pm -
1 stop8h 15m
Thu 10/83:00 pm -
1 stop8h 12m
Deal found 9/16![American Airlines logo]()
$767
This United Airlines deal was found by Cheapflights users on 9/16. 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 10/47:00 am -
3 stops11h 49m
Thu 10/86:00 am -
2 stops11h 24m
Deal found 9/16![United Airlines logo]()
$2,092
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Thu 10/292:42 pm -
1 stop5h 50m
Mon 11/25:05 pm -
1 stop7h 25m
Deal found 9/14![United Airlines logo]()
$480
This American Airlines deal was found by Cheapflights users on 9/14. 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 10/296:00 am -
2 stops12h 18m
Mon 11/22:55 pm -
1 stop7h 45m
Deal found 9/14![American Airlines logo]()
$498
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 September 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $359 (American Airlines) |
Popular in | June |
Cheapest in | December |
Average price | $533 |
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 7,457,451 searches. Data last updated September 16, 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
Cheapest round-trip
BillingsKnoxville
BIL Billings Logan Intl - TYS Knoxville McGhee Tyson
BILTYS
Billings Logan Intl
Tue 11/3
2:42 pm-10:32 pm
1 stop5h 50m
Knoxville McGhee Tyson
Tue 11/10
10:45 am-9:14 pm
2 stops12h 29m
$364
BillingsKnoxville
BIL Billings Logan Intl - TYS Knoxville McGhee Tyson
BILTYS
Billings Logan Intl
Tue 11/3
5:00 am-3:01 pm
1 stop8h 01m
Knoxville McGhee Tyson
Wed 11/11
5:05 pm-9:14 pm
1 stop6h 09m
$449
BillingsKnoxville
BIL Billings Logan Intl - TYS Knoxville McGhee Tyson
BILTYS
Billings Logan Intl
Mon 11/2
2:42 pm-10:32 pm
1 stop5h 50m
Knoxville McGhee Tyson
Wed 11/11
6:45 am-1:29 pm
2 stops8h 44m
$454
BillingsKnoxville
BIL Billings Logan Intl - TYS Knoxville McGhee Tyson
BILTYS
Billings Logan Intl
Thu 10/29
2:42 pm-10:32 pm
1 stop5h 50m
Knoxville McGhee Tyson
Mon 11/2
5:05 pm-10:30 pm
1 stop7h 25m
$480
Quickest round-trip
BillingsKnoxville
BIL Billings Logan Intl - TYS Knoxville McGhee Tyson
BILTYS
Billings Logan Intl
Sat 1/30
7:00 am-2:36 pm
1 stop5h 36m
Knoxville McGhee Tyson
Wed 2/3
4:25 pm-9:19 pm
1 stop6h 54m
$484
BillingsKnoxville
BIL Billings Logan Intl - TYS Knoxville McGhee Tyson
BILTYS
Billings Logan Intl
Wed 11/4
7:00 am-4:59 pm
2 stops7h 59m
Knoxville McGhee Tyson
Tue 11/10
5:05 pm-9:14 pm
1 stop6h 09m
$543
BillingsKnoxville
BIL Billings Logan Intl - TYS Knoxville McGhee Tyson
BILTYS
Billings Logan Intl
Wed 12/16
7:00 am-2:41 pm
1 stop5h 41m
Knoxville McGhee Tyson
Fri 12/25
9:30 am-9:15 pm
2 stops13h 45m
$557
BillingsKnoxville
BIL Billings Logan Intl - TYS Knoxville McGhee Tyson
BILTYS
Billings Logan Intl
Wed 12/16
6:32 am-8:14 pm
2 stops11h 42m
Knoxville McGhee Tyson
Fri 12/25
10:56 am-7:48 pm
2 stops10h 52m
$559
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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
BIL-TYS
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 September 16, 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.
Crew
8.1
Comfort
7.3
Food
6.7
Overall
7.4
Boarding
7.7
Entertainment
7.1
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Crew
8.1
Comfort
7.3
Food
6.7
Overall
7.4
Boarding
7.7
Entertainment
7.1
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Crew
8.1
Comfort
7.3
Food
6.7
Overall
7.4
Boarding
7.7
Entertainment
7.1
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
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.
Traveling to a place near Knoxville?
Book flights to Knoxville if you plan to visit one of these locationsCherokee
Crossville
Morristown
Bryson City
Murphy
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Other flights to Knoxville
Explore flights to Knoxville departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 16, 2026.
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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 7,457,451 searches. Data last updated September 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$340 | Average$510 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$377 | Average$524 | FlexibilityNo cancel fee | On-time71% |