$106+ 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 11/5. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — ONT
Nov 2 — Nov 91
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
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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 October 3, 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 October 3, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:30 am -
1 stop20h 21m
Thu 11/1212:01 pm -
2 stops31h 34m
Deal found 10/1![Multiple Airlines logo]()
$273
This Kiwi.com deal was found by Cheapflights users on 10/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/226:30 am -
1 stop6h 59m
Wed 10/285:07 pm -
1 stop24h 32m
Deal found 10/1![Multiple Airlines logo]()
$323
This American Airlines deal was found by Cheapflights users on 9/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/55:30 am -
1 stop9h 42m
Sat 12/126:00 am -
1 stop7h 39m
Deal found 9/30![American Airlines logo]()
$377
This Southwest deal was found by Cheapflights users on 9/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/55:20 pm -
1 stop6h 40m
Sat 12/125:35 am -
2 stops9h 05m
Deal found 9/30![Southwest logo]()
$382
This American Airlines deal was found by Cheapflights users on 10/2. 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 12/85:30 am -
1 stop7h 12m
Tue 12/157:00 am -
1 stop6h 39m
Deal found 10/2![American Airlines logo]()
$385
This American Airlines deal was found by Cheapflights users on 9/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/228:02 pm -
1 stop6h 50m
Wed 10/287:00 am -
1 stop6h 36m
Deal found 9/30![American Airlines logo]()
$427
This Southwest deal was found by Cheapflights users on 10/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/225:30 pm -
2 stops9h 25m
Wed 10/288:25 am -
2 stops9h 40m
Deal found 10/1![Southwest logo]()
$428
This Southwest deal was found by Cheapflights users on 9/29. 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 11/125:25 pm -
1 stop8h 20m
Sun 11/158:05 am -
1 stop7h 40m
Deal found 9/29![Southwest logo]()
$432
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 October 3, 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 October 3, 2026.
This United Airlines deal was found by Cheapflights users on 10/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3110:51 am -
2 stops10h 10m
Sat 11/71:29 pm -
1 stop6h 03m
Deal found 10/1![United Airlines logo]()
$382
This Southwest deal was found by Cheapflights users on 9/27. 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 12/57:10 am -
2 stops8h 40m
Sat 12/126:10 am -
2 stops8h 30m
Deal found 9/27![Southwest logo]()
$387
This Delta deal was found by Cheapflights users on 9/29. 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 11/124:00 pm -
1 stop8h 57m
Sun 11/1511:10 pm -
1 stop7h 45m
Deal found 9/29![Delta logo]()
$432
This Southwest deal was found by Cheapflights users on 9/28. 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 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
Wed 11/47:50 am -
2 stops9h 00m
Deal found 9/28![Southwest logo]()
$387
This Delta deal was found by Cheapflights users on 10/1. 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 10/225:40 am -
1 stop8h 26m
Wed 10/287:07 am -
1 stop7h 21m
Deal found 10/1![Delta logo]()
$468
This Southwest deal was found by Cheapflights users on 9/29. 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 11/125:25 pm -
1 stop8h 20m
Sun 11/158:05 am -
1 stop7h 40m
Deal found 9/29![Southwest logo]()
$432
This United Airlines deal was found by Cheapflights users on 9/29. 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 11/109:45 am -
2 stops14h 06m
Wed 11/115:00 am -
1 stop7h 01m
Deal found 9/29![United Airlines logo]()
$502
This United Airlines deal was found by Cheapflights users on 10/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1010:33 am -
2 stops12h 42m
Tue 11/174:17 pm -
2 stops14h 36m
Deal found 10/1![United Airlines logo]()
$507
This United Airlines deal was found by Cheapflights users on 9/29. 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 12/94:43 pm -
1 stop7h 28m
Sun 1/175:00 am -
1 stop6h 36m
Deal found 9/29![United Airlines logo]()
$552
Last-minute flights from Knoxville to OntarioDiscover last-minute flight deals from Knoxville to Ontario. Data last updated October 3, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to Ontario. Data last updated October 3, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 10/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/226:30 am -
1 stop6h 59m
Wed 10/285:07 pm -
1 stop24h 32m
Deal found 10/1![Multiple Airlines logo]()
$323
This American Airlines deal was found by Cheapflights users on 9/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/228:02 pm -
1 stop6h 50m
Wed 10/287:00 am -
1 stop6h 36m
Deal found 9/30![American Airlines logo]()
$427
This Southwest deal was found by Cheapflights users on 10/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/225:30 pm -
2 stops9h 25m
Wed 10/288:25 am -
2 stops9h 40m
Deal found 10/1![Southwest logo]()
$428
This United Airlines deal was found by Cheapflights users on 9/28. 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 10/289:00 am -
1 stop6h 33m
Wed 11/45:00 am -
2 stops8h 59m
Deal found 9/28![United Airlines logo]()
$382
This Southwest deal was found by Cheapflights users on 9/28. 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 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
Wed 11/47:50 am -
2 stops9h 00m
Deal found 9/28![Southwest logo]()
$387
This Kiwi.com deal was found by Cheapflights users on 10/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:30 am -
1 stop20h 21m
Thu 11/1212:01 pm -
2 stops31h 34m
Deal found 10/1![Multiple Airlines logo]()
$273
This American Airlines deal was found by Cheapflights users on 9/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/105:19 pm -
1 stop7h 53m
Tue 11/1710:30 pm -
1 stop8h 15m
Deal found 9/28![American Airlines logo]()
$377
This Southwest deal was found by Cheapflights users on 9/29. 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 11/125:25 pm -
1 stop8h 20m
Sun 11/158:05 am -
1 stop7h 40m
Deal found 9/29![Southwest logo]()
$432
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 October 3, 2026.
Search for one-way flight options from Knoxville to Ontario. Find affordable one-way fares based on user searches. Data last updated October 3, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:30 am -
1 stop20h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/1![Multiple Airlines logo]()
$106
This Kiwi.com deal was found by Cheapflights users on 9/29. 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 12/149:15 pm -
2 stops29h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![Multiple Airlines logo]()
$153
This Kiwi.com deal was found by Cheapflights users on 9/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/157:30 am -
3 stops54h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Multiple Airlines logo]()
$171
This Kiwi.com deal was found by Cheapflights users on 9/28. 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 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
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Multiple Airlines logo]()
$185
This Delta deal was found by Cheapflights users on 9/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/34:01 pm -
1 stop8h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/30![Delta logo]()
$189
This American Airlines deal was found by Cheapflights users on 9/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/25:17 pm -
1 stop7h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![American Airlines logo]()
$193
This United Airlines deal was found by Cheapflights users on 9/29. 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 11/149:00 am -
2 stops9h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/29![United Airlines logo]()
$194
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 October 3, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $273 (Kiwi.com) |
One-way from | $106 (Kiwi.com) |
Popular in | August |
Cheapest in | October |
Average price | $379 |
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 October 3, 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 12/9
4:15 pm-9:40 pm
1 stop8h 25m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$189
KnoxvilleOntario
TYS Knoxville McGhee Tyson - ONT Ontario
TYSONT
Knoxville McGhee Tyson
Thu 12/3
4:01 pm-9:55 pm
1 stop8h 54m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$189
KnoxvilleOntario
TYS Knoxville McGhee Tyson - ONT Ontario
TYSONT
Knoxville McGhee Tyson
Sat 11/21
5:55 pm-11:45 pm
2 stops8h 50m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$194
KnoxvilleOntario
TYS Knoxville McGhee Tyson - ONT Ontario
TYSONT
Knoxville McGhee Tyson
Sat 12/12
7:10 am-12:50 pm
2 stops8h 40m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$194
KnoxvilleOntario
TYS Knoxville McGhee Tyson - ONT Ontario
TYSONT
Knoxville McGhee Tyson
Sat 1/16
6:55 am-2:25 pm
2 stops10h 30m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$194
KnoxvilleOntario
TYS Knoxville McGhee Tyson - ONT Ontario
TYSONT
Knoxville McGhee Tyson
Wed 12/2
5:40 am-11:07 am
1 stop8h 27m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$232
KnoxvilleOntario
TYS Knoxville McGhee Tyson - ONT Ontario
TYSONT
Knoxville McGhee Tyson
Thu 10/22
5:40 am-11:06 am
1 stop8h 26m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$274
KnoxvilleOntario
TYS Knoxville McGhee Tyson - ONT Ontario
TYSONT
Knoxville McGhee Tyson
Wed 10/14
4:20 pm-9:45 pm
1 stop8h 25m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$286
Quickest round-trip
KnoxvilleOntario
TYS Knoxville McGhee Tyson - ONT Ontario
TYSONT
Knoxville McGhee Tyson
Mon 11/16
5:05 pm-8:51 pm
1 stop6h 46m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$290
KnoxvilleOntario
TYS Knoxville McGhee Tyson - ONT Ontario
TYSONT
Knoxville McGhee Tyson
Wed 10/7
4:20 pm-10:05 pm
2 stops8h 45m
Ontario
Wed 12/31
12:00 am-3:00 am
Nonstop0h 00m
$291
Showing 1-10 of 19 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 October.
| 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, October is the cheapest month in which you can book a flight from Knoxville to Ontario (average of $379). 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 $349 and $555 in November.The cheapest round-trip price found within the last 5 days was $273 on Multiple Airlines (Nov 5-Nov 12).
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 October 3, 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.
Crew
8.5
Overall
7.8
Comfort
7.8
Food
7.2
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Crew
8.5
Overall
7.8
Comfort
7.8
Food
7.2
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Crew
8.5
Overall
7.8
Comfort
7.8
Food
7.2
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Crew
8.5
Overall
7.8
Comfort
7.8
Food
7.2
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Crew
8.5
Overall
7.8
Comfort
7.8
Food
7.2
Boarding
8.1
Entertainment
7.8
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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Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Complete your trip
Complete your trip to Ontario by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Knoxville to Ontario by cabin class
Find flights from Knoxville to Ontario, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Ontario
Explore flights to Ontario departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 3, 2026.
Knoxville and Ontario flights
Browse other Knoxville and Ontario flight options. Last updated on October 3, 2026.
Other flights from Knoxville
Browse through other flights departing from Knoxville. Flights are based on user searches made on Cheapflights and were last updated on October 3, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 October 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$199 | Average$369 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$250 | Average$506 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$277 | Average$521 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$344 | Average$495 | FlexibilityNo cancel fee | On-time71% |