$182+ Cheap flights from Knoxville to Ontario (TYS - ONT)
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 12/2. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — ONT
Oct 12 — Oct 191
Round-trip
1 adult, Economy
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Find cheap flights from Knoxville to Ontario 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 Ontario
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Best
Last-minute
One-way
Cheapest flights from Knoxville to OntarioExplore the most affordable flight options available from Knoxville to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 12, 2026.
Explore the most affordable flight options available from Knoxville to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 12, 2026.
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:30 am -
1 stop20h 21m
Sun 11/18:03 pm -
2 stops16h 48m
Deal found 9/12![Multiple Airlines logo]()
$336
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/156:30 am -
1 stop20h 20m
Sun 10/258:35 pm -
2 stops16h 16m
Deal found 9/9![Multiple Airlines logo]()
$342
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.
Tue 12/85:30 am -
1 stop7h 10m
Tue 12/157:00 am -
1 stop6h 42m
Deal found 9/10![American Airlines logo]()
$363
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/199:59 pm -
1 stop15h 32m
Thu 10/221:38 pm -
1 stop29h 11m
Deal found 9/8![Multiple Airlines logo]()
$367
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 9/304:53 pm -
1 stop7h 05m
Mon 10/56:32 pm -
2 stops12h 13m
Deal found 9/8![United Airlines logo]()
$368
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/283:20 pm -
2 stops9h 05m
Sat 10/315:40 am -
2 stops11h 00m
Deal found 9/7![Southwest logo]()
$373
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected ” under the list of providers to see comparable flight deals.
Thu 10/156:30 am -
1 stop20h 20m
Mon 10/198:35 pm -
2 stops38h 18m
Deal found 9/10![Multiple Airlines logo]()
$383
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/259:29 pm -
1 stop12h 35m
Sun 11/18:35 pm -
2 stops16h 16m
Deal found 9/12![Multiple Airlines logo]()
$385
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/235:40 am -
1 stop8h 26m
Mon 10/2611:15 pm -
1 stop7h 19m
Deal found 9/8![Delta logo]()
$386
This American Airlines deal was found by Cheapflights users on 9/11. 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.
Sat 10/104:49 pm -
1 stop9h 10m
Sat 10/1711:59 pm -
1 stop8h 06m
Deal found 9/11![American Airlines logo]()
$402
Best flights from Knoxville to OntarioDiscover carefully curated flight deals from Knoxville to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 12, 2026.
Discover carefully curated flight deals from Knoxville to Ontario that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 12, 2026.
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/283:20 pm -
1 stop8h 30m
Sat 10/316:10 am -
1 stop6h 20m
Deal found 9/7![Southwest logo]()
$363
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 9/304:53 pm -
1 stop7h 05m
Mon 10/56:32 pm -
2 stops12h 13m
Deal found 9/8![United Airlines logo]()
$368
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:30 am -
1 stop20h 21m
Sun 11/18:35 pm -
1 stop21h 17m
Deal found 9/12![Multiple Airlines logo]()
$380
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 10/235:40 am -
1 stop8h 26m
Mon 10/2611:15 pm -
1 stop7h 19m
Deal found 9/10![Delta logo]()
$406
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.
Tue 12/88:13 am -
2 stops11h 06m
Tue 12/159:29 am -
2 stops9h 10m
Deal found 9/7![American Airlines logo]()
$501
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/235:30 pm -
1 stop7h 50m
Mon 10/2611:00 am -
2 stops8h 45m
Deal found 9/10![Southwest logo]()
$414
This United Airlines deal was found by Cheapflights users on 9/11. 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 11/105:05 pm -
1 stop6h 46m
Wed 11/111:29 pm -
1 stop6h 03m
Deal found 9/11![United Airlines logo]()
$485
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/295:30 pm -
2 stops9h 25m
Sun 11/15:35 am -
2 stops10h 10m
Deal found 9/12![Southwest logo]()
$474
This United Airlines deal was found by Cheapflights users on 9/11. 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 11/75:03 pm -
1 stop6h 48m
Fri 11/131:32 pm -
1 stop6h 00m
Deal found 9/11![United Airlines logo]()
$502
This Southwest deal was found by Cheapflights users on 9/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/106:40 am -
2 stops13h 20m
Sat 10/176:20 am -
2 stops8h 35m
Deal found 9/11![Southwest logo]()
$499
Last-minute flights from Knoxville to OntarioDiscover last-minute flight deals from Knoxville to Ontario. Data last updated September 12, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to Ontario. Data last updated September 12, 2026 and is based on user searches.
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 9/305:35 pm -
1 stop8h 02m
Mon 10/511:59 pm -
1 stop8h 06m
Deal found 9/8![American Airlines logo]()
$363
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 9/304:53 pm -
1 stop7h 05m
Mon 10/56:32 pm -
2 stops12h 13m
Deal found 9/8![United Airlines logo]()
$368
This American Airlines deal was found by Cheapflights users on 9/11. 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.
Sat 10/104:49 pm -
1 stop9h 10m
Sat 10/1711:59 pm -
1 stop8h 06m
Deal found 9/11![American Airlines logo]()
$402
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/156:30 am -
1 stop20h 20m
Sun 10/258:35 pm -
2 stops16h 16m
Deal found 9/9![Multiple Airlines logo]()
$342
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/156:30 am -
1 stop20h 20m
Mon 10/198:35 pm -
2 stops38h 18m
Deal found 9/10![Multiple Airlines logo]()
$383
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/199:59 pm -
1 stop15h 32m
Thu 10/221:38 pm -
1 stop29h 11m
Deal found 9/8![Multiple Airlines logo]()
$367
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/235:40 am -
1 stop8h 26m
Mon 10/2611:15 pm -
1 stop7h 19m
Deal found 9/8![Delta logo]()
$386
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/259:29 pm -
1 stop12h 35m
Sun 11/18:35 pm -
2 stops16h 16m
Deal found 9/12![Multiple Airlines logo]()
$385
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/283:20 pm -
2 stops9h 05m
Sat 10/315:40 am -
2 stops11h 00m
Deal found 9/7![Southwest logo]()
$373
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:30 am -
1 stop20h 21m
Sun 11/18:03 pm -
2 stops16h 48m
Deal found 9/12![Multiple Airlines logo]()
$336
One-way flights from Knoxville to OntarioSearch for one-way flight options from Knoxville to Ontario. Find affordable one-way fares based on user searches. Data last updated September 12, 2026.
Search for one-way flight options from Knoxville to Ontario. Find affordable one-way fares based on user searches. Data last updated September 12, 2026.
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.
Wed 12/25:40 am -
1 stop8h 28m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Delta logo]()
$182
This American Airlines deal was found by Cheapflights users on 9/11. 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 10/144:49 pm -
1 stop9h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![American Airlines logo]()
$183
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/107:05 am -
2 stops10h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Southwest logo]()
$187
This Southwest deal was found by Cheapflights users on 9/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/145:15 pm -
2 stops7h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Southwest logo]()
$198
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.
Fri 12/1112:32 pm -
1 stop9h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Delta logo]()
$205
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Wed 10/144:14 pm -
3 stops45h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Multiple Airlines logo]()
$222
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.
Tue 12/15:01 pm -
1 stop9h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![American Airlines logo]()
$233
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/610:42 am -
2 stops12h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![United Airlines logo]()
$237
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.
Thu 10/16:00 am -
1 stop6h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![American Airlines logo]()
$240
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.
Sun 12/612:32 pm -
1 stop9h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Delta logo]()
$244
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/55:12 pm -
2 stops20h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/12![Multiple Airlines logo]()
$263
Find flight deals from Knoxville to Ontario
Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to Ontario (ONT). 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 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $336 (Kiwi.com) |
One-way from | $182 (Delta) |
Popular in | August |
Cheapest in | September |
Average price | $387 |
Cheapflights Fare Finder
Customize your flight search to find flights from Knoxville to Ontario 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 12, 2026.
Use the filters below to find and compare flights from Knoxville to Ontario that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
KnoxvilleOntario
TYS Knoxville McGhee Tyson - ONT Ontario
TYSONT
Knoxville McGhee Tyson
Wed 12/2
5:40 am-11:08 am
1 stop8h 28m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$182
KnoxvilleOntario
TYS Knoxville McGhee Tyson - ONT Ontario
TYSONT
Knoxville McGhee Tyson
Thu 12/10
4:15 pm-9:40 pm
1 stop8h 25m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$182
KnoxvilleOntario
TYS Knoxville McGhee Tyson - ONT Ontario
TYSONT
Knoxville McGhee Tyson
Thu 12/3
5:40 am-11:08 am
1 stop8h 28m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$182
KnoxvilleOntario
TYS Knoxville McGhee Tyson - ONT Ontario
TYSONT
Knoxville McGhee Tyson
Wed 10/14
5:15 pm-10:05 pm
2 stops7h 50m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$198
KnoxvilleOntario
TYS Knoxville McGhee Tyson - ONT Ontario
TYSONT
Knoxville McGhee Tyson
Tue 10/6
10:42 am-8:31 pm
2 stops12h 49m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$237
KnoxvilleOntario
TYS Knoxville McGhee Tyson - ONT Ontario
TYSONT
Knoxville McGhee Tyson
Mon 10/5
5:12 pm-10:30 am
2 stops20h 18m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$263
KnoxvilleOntario
TYS Knoxville McGhee Tyson - ONT Ontario
TYSONT
Knoxville McGhee Tyson
Fri 10/9
6:06 pm-10:59 pm
1 stop7h 53m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$264
KnoxvilleOntario
TYS Knoxville McGhee Tyson - ONT Ontario
TYSONT
Knoxville McGhee Tyson
Fri 10/9
5:30 pm-11:55 pm
2 stops9h 25m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$279
Quickest round-trip
KnoxvilleOntario
TYS Knoxville McGhee Tyson - ONT Ontario
TYSONT
Knoxville McGhee Tyson
Tue 9/22
7:50 am-11:05 am
1 stop6h 15m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$286
KnoxvilleOntario
TYS Knoxville McGhee Tyson - ONT Ontario
TYSONT
Knoxville McGhee Tyson
Tue 9/22
3:00 pm-9:00 pm
2 stops9h 00m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$291
Showing 1-10 of 21 resultsSorted by cheapest first
Compare providers for flights from Knoxville to Ontario
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 Ontario 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-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Knoxville-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Knoxville-Ontario flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Knoxville-Ontario 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-Ontario 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 Ontario
Have a flexible travel schedule? Discover the best time to fly to Ontario from Knoxville with our price prediction graph.
TYS-ONT
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 Ontario
What is the cheapest month to book a flight from Knoxville to Ontario?
Currently, September is the cheapest month in which you can book a flight from Knoxville to Ontario (average of $387). Flying from Knoxville to Ontario in August is currently the most expensive (average of $586). 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 Ontario?
Airfare is below average for this route at the moment.
Knoxville to Ontario flights typically cost between $339 and $478 in October.The cheapest round-trip price found within the last 5 days was $336 on Multiple Airlines (Oct 29-Nov 1).
Reviews of airlines servicing Ontario
Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated September 12, 2026.
Get a feel of what it's like to fly with Delta,United Airlines, andAmerican Airlines from Knoxville to Ontario by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.2
Comfort
7.8
Overall
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Food
7.2
Comfort
7.8
Overall
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Food
7.2
Comfort
7.8
Overall
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Food
7.2
Comfort
7.8
Overall
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Food
7.2
Comfort
7.8
Overall
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Related info for your journey
Find useful and relevant information for your journey from Knoxville to Ontario. 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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Top 4 airlines flying from Knoxville to Ontario
Discover the top 4 airlines that operate flights from Knoxville to Ontario. 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 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$199 | Average$369 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$277 | Average$477 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$336 | Average$540 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$339 | Average$498 | FlexibilityNo cancel fee | On-time71% |