$122+ Cheap flights from Knoxville to Ontario (TYS - ONT)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — ONT
Aug 14 — Aug 211
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
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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
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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 July 15, 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 July 15, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/12. 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 8/137:00 am
TYS
- ONT
1 stop19h 50m
Multiple Airlines
Wed 8/267:56 pm
ONT
- TYS
2 stops39h 05m
Multiple Airlines
Deal found 7/12![Multiple Airlines logo]()
$236
This Frontier deal was found by Cheapflights users on 7/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/58:19 pm
TYS
- ONT
1 stop6h 31m
Frontier
Mon 8/106:00 am
ONT
- TYS
1 stop10h 24m
Frontier
Deal found 7/13![Frontier logo]()
$260
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/137:00 am
TYS
- ONT
1 stop19h 50m
Multiple Airlines
Thu 8/2710:49 am
ONT
- TYS
2 stops24h 12m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$269
This United Airlines deal was found by Cheapflights users on 7/10. 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.
Fri 11/135:01 pm
TYS
- ONT
1 stop6h 55m
United Airlines
Mon 11/165:00 am
ONT
- TYS
1 stop7h 59m
United Airlines
Deal found 7/10![United Airlines logo]()
$279
This Delta deal was found by Cheapflights users on 7/10. 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 11/135:57 pm
TYS
- ONT
1 stop7h 17m
Delta
Mon 11/1610:59 pm
ONT
- TYS
1 stop7h 13m
Delta
Deal found 7/10![Delta logo]()
$285
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/207:00 am
TYS
- ONT
1 stop19h 50m
Multiple Airlines
Sat 8/297:56 pm
ONT
- TYS
1 stop14h 53m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$287
This Frontier deal was found by Cheapflights users on 7/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/58:19 pm
TYS
- ONT
1 stop6h 31m
Frontier
Wed 8/126:00 am
ONT
- TYS
1 stop10h 24m
Frontier
Deal found 7/11![Frontier logo]()
$289
This American Airlines deal was found by Cheapflights users on 7/10. 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.
Wed 9/236:00 am
TYS
- ONT
1 stop6h 29m
American Airlines
Mon 9/2812:37 pm
ONT
- TYS
1 stop7h 45m
American Airlines
Deal found 7/10![American Airlines logo]()
$293
This Frontier deal was found by Cheapflights users on 7/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/38:19 pm
TYS
- ONT
1 stop6h 31m
Frontier
Wed 8/126:00 am
ONT
- TYS
1 stop10h 24m
Frontier
Deal found 7/13![Frontier logo]()
$304
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 July 15, 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 July 15, 2026.
This Southwest deal was found by Cheapflights users on 7/12. 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 8/134:50 pm
TYS
- ONT
2 stops8h 15m
Southwest
Wed 8/265:45 am
ONT
- TYS
2 stops7h 45m
Southwest
Deal found 7/12![Southwest logo]()
$366
This Delta deal was found by Cheapflights users on 7/12. 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.
Mon 8/34:38 pm
TYS
- ONT
1 stop8h 14m
Delta
Wed 8/1212:00 pm
ONT
- TYS
1 stop8h 54m
Delta
Deal found 7/12![Delta logo]()
$436
This United Airlines deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/124:50 pm
TYS
- ONT
1 stop7h 03m
United Airlines
Wed 8/195:00 am
ONT
- TYS
1 stop7h 54m
United Airlines
Deal found 7/13![United Airlines logo]()
$455
This United Airlines deal was found by Cheapflights users on 7/11. 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.
Thu 9/36:02 pm
TYS
- ONT
1 stop7h 33m
United Airlines
Sun 9/67:00 am
ONT
- TYS
1 stop6h 58m
United Airlines
Deal found 7/11![United Airlines logo]()
$455
This Delta deal was found by Cheapflights users on 7/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/34:38 pm
TYS
- ONT
1 stop8h 14m
Delta
Sat 8/1512:00 pm
ONT
- TYS
1 stop7h 39m
Delta
Deal found 7/11![Delta logo]()
$487
This United Airlines deal was found by Cheapflights users on 7/14. 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.
Sat 8/152:21 pm
TYS
- ONT
1 stop6h 51m
United Airlines
Wed 8/191:18 pm
ONT
- TYS
1 stop6h 11m
United Airlines
Deal found 7/14![United Airlines logo]()
$455
This United Airlines deal was found by Cheapflights users on 7/10. 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.
Mon 8/313:40 pm
TYS
- ONT
1 stop9h 19m
United Airlines
Sun 9/65:00 am
ONT
- TYS
2 stops8h 58m
United Airlines
Deal found 7/10![United Airlines logo]()
$459
This United Airlines deal was found by Cheapflights users on 7/10. 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.
Thu 9/106:02 pm
TYS
- ONT
1 stop7h 57m
United Airlines
Sun 9/205:00 am
ONT
- TYS
1 stop7h 54m
United Airlines
Deal found 7/10![United Airlines logo]()
$475
Last-minute flights from Knoxville to OntarioDiscover last-minute flight deals from Knoxville to Ontario. Data last updated July 15, 2026 and is based on user searches.
Discover last-minute flight deals from Knoxville to Ontario. Data last updated July 15, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 7/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/38:19 pm
TYS
- ONT
1 stop6h 31m
Frontier
Mon 8/106:00 am
ONT
- TYS
1 stop10h 24m
Frontier
Deal found 7/13![Frontier logo]()
$304
This Frontier deal was found by Cheapflights users on 7/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/38:19 pm
TYS
- ONT
1 stop6h 31m
Frontier
Wed 8/126:00 am
ONT
- TYS
1 stop10h 24m
Frontier
Deal found 7/11![Frontier logo]()
$318
This Frontier deal was found by Cheapflights users on 7/13. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/58:19 pm
TYS
- ONT
1 stop6h 31m
Frontier
Mon 8/106:00 am
ONT
- TYS
1 stop10h 24m
Frontier
Deal found 7/13![Frontier logo]()
$260
This Frontier deal was found by Cheapflights users on 7/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/58:19 pm
TYS
- ONT
1 stop6h 31m
Frontier
Wed 8/126:00 am
ONT
- TYS
1 stop10h 24m
Frontier
Deal found 7/11![Frontier logo]()
$289
This Kiwi.com deal was found by Cheapflights users on 7/12. 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 8/137:00 am
TYS
- ONT
1 stop19h 50m
Multiple Airlines
Wed 8/267:56 pm
ONT
- TYS
2 stops39h 05m
Multiple Airlines
Deal found 7/12![Multiple Airlines logo]()
$236
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/137:00 am
TYS
- ONT
1 stop19h 50m
Multiple Airlines
Thu 8/2710:49 am
ONT
- TYS
2 stops24h 12m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$269
This Frontier deal was found by Cheapflights users on 7/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/148:19 pm
TYS
- ONT
1 stop6h 31m
Frontier
Mon 8/176:00 am
ONT
- TYS
1 stop10h 24m
Frontier
Deal found 7/15![Frontier logo]()
$279
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/207:00 am
TYS
- ONT
1 stop19h 50m
Multiple Airlines
Sat 8/297:56 pm
ONT
- TYS
1 stop14h 53m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$287
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 July 15, 2026.
Search for one-way flight options from Knoxville to Ontario. Find affordable one-way fares based on user searches. Data last updated July 15, 2026.
This Southwest deal was found by Cheapflights users on 7/10. 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.
Tue 9/17:00 am
TYS
- ONT
2 stops8h 40m
Southwest
Deal found 7/10![Southwest logo]()
$122
This United Airlines deal was found by Cheapflights users on 7/12. 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 9/226:00 pm
TYS
- ONT
1 stop7h 59m
United Airlines
Deal found 7/12![United Airlines logo]()
$178
This Southwest deal was found by Cheapflights users on 7/12. 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.
Tue 9/223:00 pm
TYS
- ONT
2 stops8h 55m
Southwest
Deal found 7/12![Southwest logo]()
$183
This Expedia deal was found by Cheapflights users on 7/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/228:19 pm
TYS
- ONT
1 stop6h 31m
Frontier
Deal found 7/14![Frontier logo]()
$191
This Trip.com deal was found by Cheapflights users on 7/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/278:19 pm
TYS
- ONT
1 stop6h 31m
Frontier
Deal found 7/10![Frontier logo]()
$192
This Frontier deal was found by Cheapflights users on 7/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/318:19 pm
TYS
- ONT
1 stop6h 31m
Frontier
Deal found 7/11![Frontier logo]()
$195
This CheapOair deal was found by Cheapflights users on 7/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/208:19 pm
TYS
- ONT
1 stop16h 45m
Frontier
Deal found 7/14![Frontier logo]()
$211
This United Airlines deal was found by Cheapflights users on 7/12. 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 8/124:50 pm
TYS
- ONT
1 stop7h 03m
United Airlines
Deal found 7/12![United Airlines logo]()
$228
This Delta deal was found by Cheapflights users on 7/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/86:21 pm
TYS
- ONT
1 stop6h 40m
Delta
Deal found 7/14![Delta logo]()
$229
This United Airlines deal was found by Cheapflights users on 7/14. 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.
Wed 11/189:00 am
TYS
- ONT
2 stops14h 06m
United Airlines
Deal found 7/14![United Airlines logo]()
$233
This deal was found by Cheapflights users on 7/11. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/298:19 pm
TYS
- ONT
1 stop6h 31m
Frontier
Deal found 7/11![Frontier logo]()
$253
This Kiwi.com deal was found by Cheapflights users on 7/11. 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.
Thu 10/159:28 pm
TYS
- ONT
3 stops40h 15m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$255
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 July 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $233 (Southwest) |
One-way from | $122 (Southwest) |
Popular in | July |
Cheapest in | September |
Average price | $557 |
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 2,558,603 searches. Data last updated July 15, 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 - ONT
TYSONT
Knoxville McGhee Tyson
Thu 8/13
4:50 pm-10:05 pm
2 stops8h 15m
Ontario
Wed 8/26
5:45 am-4:30 pm
2 stops7h 45m
$366
KnoxvilleOntario
TYS - ONT
TYSONT
Knoxville McGhee Tyson
Mon 8/3
4:38 pm-9:52 pm
1 stop8h 14m
Ontario
Wed 8/12
12:00 pm-11:54 pm
1 stop8h 54m
$436
KnoxvilleOntario
TYS - ONT
TYSONT
Knoxville McGhee Tyson
Wed 8/12
4:50 pm-8:53 pm
1 stop7h 03m
Ontario
Wed 8/19
5:00 am-3:54 pm
1 stop7h 54m
$455
KnoxvilleOntario
TYS - ONT
TYSONT
Knoxville McGhee Tyson
Thu 9/3
6:02 pm-10:35 pm
1 stop7h 33m
Ontario
Sun 9/6
7:00 am-4:58 pm
1 stop6h 58m
$455
Quickest round-trip
KnoxvilleOntario
TYS - ONT
TYSONT
Knoxville McGhee Tyson
Sat 8/15
2:21 pm-6:12 pm
1 stop6h 51m
Ontario
Wed 8/19
1:18 pm-10:29 pm
1 stop6h 11m
$455
KnoxvilleOntario
TYS - ONT
TYSONT
Knoxville McGhee Tyson
Mon 8/31
3:40 pm-9:59 pm
1 stop9h 19m
Ontario
Sun 9/6
5:00 am-4:58 pm
2 stops8h 58m
$459
KnoxvilleOntario
TYS - ONT
TYSONT
Knoxville McGhee Tyson
Thu 9/10
6:02 pm-10:59 pm
1 stop7h 57m
Ontario
Sun 9/20
5:00 am-3:54 pm
1 stop7h 54m
$475
KnoxvilleOntario
TYS - ONT
TYSONT
Knoxville McGhee Tyson
Mon 8/3
4:38 pm-9:52 pm
1 stop8h 14m
Ontario
Sat 8/15
12:00 pm-10:39 pm
1 stop7h 39m
$487
Cheapest one-way
KnoxvilleOntario
TYS - ONT
TYSONT
Knoxville McGhee Tyson
Tue 9/1
7:00 am-12:40 pm
2 stops8h 40m
$122
KnoxvilleOntario
TYS - ONT
TYSONT
Knoxville McGhee Tyson
Thu 10/15
6:21 pm-10:01 pm
1 stop6h 40m
$178
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 July.
| 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 $368). Flying from Knoxville to Ontario in July is currently the most expensive (average of $557). 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?
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 July 15, 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
Boarding
8.1
Crew
8.5
Comfort
7.8
Overall
7.8
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Food
7.2
Boarding
8.1
Crew
8.5
Comfort
7.8
Overall
7.8
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Food
7.2
Boarding
8.1
Crew
8.5
Comfort
7.8
Overall
7.8
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Food
7.2
Boarding
8.1
Crew
8.5
Comfort
7.8
Overall
7.8
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
Food
7.2
Boarding
8.1
Crew
8.5
Comfort
7.8
Overall
7.8
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
TUS - LAX
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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 2,558,603 searches. Data last updated July 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$151 | Average$355 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$277 | Average$477 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$319 | Average$494 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$336 | Average$528 | FlexibilityNo cancel fee | On-time69% |