$349+ 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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — BIL
Oct 11 — Oct 181
Round-trip
1 adult, Economy
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Find cheap flights from Knoxville to Billings 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 Knoxville to Billings
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Best
Last-minute
One-way
Cheapest flights from Knoxville to BillingsExplore 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 September 11, 2026.
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 September 11, 2026.
This Delta deal was found by Cheapflights users on 9/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/1110:41 am -
2 stops11h 07m
Mon 1/412:58 pm -
2 stops8h 48m
Deal found 9/9![Delta logo]()
$420
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Wed 11/45:05 pm -
1 stop6h 09m
Sat 11/72:42 pm -
1 stop5h 50m
Deal found 9/10![United Airlines logo]()
$429
This United Airlines deal was found by Cheapflights users on 9/8. 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 9/234:50 pm -
1 stop8h 01m
Sun 9/272:28 pm -
1 stop5h 46m
Deal found 9/8![United Airlines logo]()
$489
This United Airlines deal was found by Cheapflights users on 9/7. 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 9/229:00 am -
1 stop6h 21m
Sat 9/267:00 am -
2 stops11h 49m
Deal found 9/7![United Airlines logo]()
$499
This Delta deal was found by Cheapflights users on 9/7. 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 9/2212:23 pm -
2 stops12h 52m
Sat 9/265:20 am -
2 stops12h 18m
Deal found 9/7![Delta logo]()
$515
Best flights from Knoxville to BillingsDiscover carefully curated flight deals from Knoxville to Billings that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2026.
Discover carefully curated flight deals from Knoxville to Billings that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 11, 2026.
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/96:00 am -
2 stops8h 19m
Tue 1/126:15 am -
2 stops8h 58m
Deal found 9/10![Delta logo]()
$349
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Wed 11/43:45 pm -
2 stops8h 45m
Sat 11/72:42 pm -
1 stop5h 50m
Deal found 9/10![United Airlines logo]()
$434
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/1112:00 pm -
2 stops12h 32m
Sat 1/1612:58 pm -
2 stops20h 08m
Deal found 9/10![Delta logo]()
$434
This Delta deal was found by Cheapflights users on 9/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/87:55 am -
2 stops11h 54m
Sat 1/166:15 am -
1 stop14h 47m
Deal found 9/10![Delta logo]()
$468
Last-minute flights from Knoxville to BillingsDiscover last-minute flight deals from Knoxville to Billings. Data last updated September 11, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to Billings. Data last updated September 11, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Fri 9/112:43 pm -
1 stop9h 27m
Thu 9/171:13 pm -
1 stop8h 09m
Deal found 9/10![American Airlines logo]()
$727
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Sun 9/137:30 am -
1 stop7h 13m
Sat 9/191:13 pm -
1 stop8h 09m
Deal found 9/10![American Airlines logo]()
$716
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Sun 9/134:50 pm -
1 stop8h 01m
Sat 9/1910:30 am -
2 stops10h 19m
Deal found 9/10![United Airlines logo]()
$723
This United Airlines deal was found by Cheapflights users on 9/7. 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 9/229:00 am -
1 stop6h 21m
Sat 9/267:00 am -
2 stops11h 49m
Deal found 9/7![United Airlines logo]()
$499
This Delta deal was found by Cheapflights users on 9/7. 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 9/2212:23 pm -
2 stops12h 52m
Sat 9/265:20 am -
2 stops12h 18m
Deal found 9/7![Delta logo]()
$515
This United Airlines deal was found by Cheapflights users on 9/8. 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 9/234:50 pm -
1 stop8h 01m
Sun 9/272:28 pm -
1 stop5h 46m
Deal found 9/8![United Airlines logo]()
$489
This American Airlines deal was found by Cheapflights users on 9/8. 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 9/2312:39 pm -
2 stops11h 31m
Sun 9/277:00 am -
2 stops14h 07m
Deal found 9/8![American Airlines logo]()
$685
One-way flights from Knoxville to BillingsSearch for one-way flight options from Knoxville to Billings. Find affordable one-way fares based on user searches. Data last updated September 11, 2026.
Search for one-way flight options from Knoxville to Billings. Find affordable one-way fares based on user searches. Data last updated September 11, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/177:00 am -
3 stops35h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Multiple Airlines logo]()
$371
This American Airlines deal was found by Cheapflights users on 9/7. 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 9/176:00 am -
1 stop8h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![American Airlines logo]()
$419
This United Airlines deal was found by Cheapflights users on 9/7. 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 9/177:15 am -
2 stops9h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![United Airlines logo]()
$482
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 September 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $349 (Delta) |
Popular in | May |
Cheapest in | March |
Average price | $722 |
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 7,457,451 searches. Data last updated September 11, 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
Cheapest round-trip
KnoxvilleBillings
TYS Knoxville McGhee Tyson - BIL Billings Logan Intl
TYSBIL
Knoxville McGhee Tyson
Sat 1/9
6:00 am-12:19 pm
2 stops8h 19m
Billings Logan Intl
Tue 1/12
6:15 am-5:13 pm
2 stops8h 58m
$349
KnoxvilleBillings
TYS Knoxville McGhee Tyson - BIL Billings Logan Intl
TYSBIL
Knoxville McGhee Tyson
Thu 9/17
7:00 am-4:21 pm
3 stops35h 21m
Billings Logan Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$371
Quickest round-trip
KnoxvilleBillings
TYS Knoxville McGhee Tyson - BIL Billings Logan Intl
TYSBIL
Knoxville McGhee Tyson
Thu 9/17
6:00 am-12:43 pm
1 stop8h 43m
Billings Logan Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$419
KnoxvilleBillings
TYS Knoxville McGhee Tyson - BIL Billings Logan Intl
TYSBIL
Knoxville McGhee Tyson
Wed 11/4
3:45 pm-10:30 pm
2 stops8h 45m
Billings Logan Intl
Sat 11/7
2:42 pm-10:32 pm
1 stop5h 50m
$434
KnoxvilleBillings
TYS Knoxville McGhee Tyson - BIL Billings Logan Intl
TYSBIL
Knoxville McGhee Tyson
Mon 1/11
12:00 pm-10:32 pm
2 stops12h 32m
Billings Logan Intl
Sat 1/16
12:58 pm-11:06 am
2 stops20h 08m
$434
KnoxvilleBillings
TYS Knoxville McGhee Tyson - BIL Billings Logan Intl
TYSBIL
Knoxville McGhee Tyson
Fri 1/8
7:55 am-5:49 pm
2 stops11h 54m
Billings Logan Intl
Sat 1/16
6:15 am-11:02 pm
1 stop14h 47m
$468
KnoxvilleBillings
TYS Knoxville McGhee Tyson - BIL Billings Logan Intl
TYSBIL
Knoxville McGhee Tyson
Thu 9/17
7:15 am-3:14 pm
2 stops9h 59m
Billings Logan Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$482
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 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 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.
TYS-BIL
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 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 September 11, 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.
Crew
8.1
Entertainment
7.1
Overall
7.4
Comfort
7.3
Boarding
7.7
Food
6.7
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Crew
8.1
Entertainment
7.1
Overall
7.4
Comfort
7.3
Boarding
7.7
Food
6.7
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
Crew
8.1
Entertainment
7.1
Overall
7.4
Comfort
7.3
Boarding
7.7
Food
6.7
Reviews
1 / 20
4.0
OkayChris,Aug 2026
MIA - ORD
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.
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Knoxville and Billings flights
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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 7,457,451 searches. Data last updated September 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$318 | Average$474 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$323 | Average$749 | FlexibilityNo cancel fee | On-time71% |