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$165+ 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 3/20. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — ONT
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
1 adult, Economy
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The best prices from Knoxville McGhee Tyson to Ontario are usually found in January or February, booked 47 days in advance, depart on a Tuesday or Wednesday and return on a Saturday

Cheap 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 February 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$289
(American Airlines)

One-way from

$165
(Trip.com)

Popular in

May

Cheapest in

January

Average price

$313
Provider with most accurate pricing for Knoxville McGhee Tyson-Ontario flight deals.
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Provider most trusted by Cheapflights users for Knoxville McGhee Tyson-Ontario flights.
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From Knoxville McGhee Tyson to Ontario
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One-way flight from Knoxville McGhee Tyson to Ontario
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Highest demand for flights based on searches. 11% potential increase in price ($50 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($13 potential savings vs. average RT price).
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Average for round-trip flights in February 2025
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Find flight deals from Knoxville to Ontario

Cheapest flights from Knoxville to Ontario
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 February 20, 2025.

This Gotogate deal was found by Cheapflights users on 2/19. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/34:31 pmTYS - ONT
1 stop10h 28mFrontier
Wed 4/93:17 pmONT - TYS
1 stop21h 24mFrontier
Deal found 2/19$167
This Delta deal was found by Cheapflights users on 2/19. 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 3/185:45 amTYS - ONT
1 stop8h 51mDelta
Wed 4/212:46 pmONT - TYS
1 stop7h 56mDelta
Deal found 2/19$289
This American Airlines deal was found by Cheapflights users on 2/20. 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 3/184:16 pmTYS - ONT
2 stops9h 11mAmerican Airlines
Wed 4/27:35 pmONT - TYS
2 stops10h 24mAmerican Airlines
Deal found 2/20$299
This United Airlines deal was found by Cheapflights users on 2/19. 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 4/44:31 pmTYS - ONT
1 stop7h 11mUnited Airlines
Mon 4/76:10 amONT - TYS
1 stop7h 51mUnited Airlines
Deal found 2/19$314
This Expedia deal was found by Cheapflights users on 2/20. 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.
Thu 2/278:00 amTYS - ONT
2 stops13h 19mMultiple Airlines
Wed 3/512:59 amONT - TYS
1 stop11h 24mMultiple Airlines
Deal found 2/20$605
This Alaska Airlines deal was found by Cheapflights users on 2/19. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/265:24 amTYS - ONT
2 stops13h 08mAlaska Airlines
Fri 5/26:24 pmONT - TYS
2 stops14h 10mAlaska Airlines
Deal found 2/19$619

Find flights from Knoxville to Ontario within your budget

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 February 20, 2025.

Fly from

Knoxville

Fly to

Ontario

Route

Depart

Return

Price

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Thu 4/3

4:31 pm-11:59 pm

1 stop10h 28m

Ontario

Wed 4/9

3:17 pm-3:41 pm

1 stop21h 24m

$167

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Tue 3/18

5:45 am-11:36 am

1 stop8h 51m

Ontario

Wed 4/2

12:46 pm-11:42 pm

1 stop7h 56m

$289

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Tue 3/18

4:16 pm-10:27 pm

2 stops9h 11m

Ontario

Wed 4/2

7:35 pm-8:59 am

2 stops10h 24m

$299

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Fri 4/4

4:31 pm-8:42 pm

1 stop7h 11m

Ontario

Mon 4/7

6:10 am-5:01 pm

1 stop7h 51m

$314

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Thu 2/27

8:00 am-6:19 pm

2 stops13h 19m

Ontario

Wed 3/5

12:59 am-3:23 pm

1 stop11h 24m

$605

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Sat 4/26

5:24 am-3:32 pm

2 stops13h 08m

Ontario

Fri 5/2

6:24 pm-11:34 am

2 stops14h 10m

$619

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Thu 3/20

4:23 pm-12:09 am

1 stop10h 46m

$165

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Wed 4/23

8:45 am-3:17 pm

1 stop9h 32m

$315

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Thu 3/20

5:51 am-6:23 pm

2 stops15h 32m

$350

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Tue 2/25

7:00 am-11:55 am

1 stop7h 55m

$445

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/18

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 February.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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.
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.

Travel insights for flights from Knoxville to Ontario

Get recent, data-driven insights about flights from Knoxville to Ontario including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Knoxville to Ontario?

Use this chart to determine the optimal time to book a round-trip flight from Knoxville to Ontario. Price data was last updated on February 14, 2025.

The best time to book flights from Knoxville to Ontario is 47 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Knoxville to Ontario?

Currently, August is the cheapest month in which you can book a flight from Knoxville to Ontario (average of $246). Flying from Knoxville to Ontario in March is currently the most expensive (average of $315). 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.

What is the cheapest time of day to fly from TYS to ONT?

Find hourly flight availability from Knoxville to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 20, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 28% on flights from Knoxville to Ontario by exploring options for tickets in the evening.

What is the cheapest day to fly from Knoxville to Ontario?

Use this chart to determine the cheapest time to fly round-trip from Knoxville to Ontario. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Knoxville to Ontario flight should consider departing on Wednesday at noon when fares are most often at their lowest. Monday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Ontario by month

Plan your trip to Ontario by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

Plan your trip to Ontario by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

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 February 20, 2025.
To help decide which airline to fly from Knoxville to Ontario, see what other customers have to say about Alaska Airlines, Delta and United Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,692 reviews

Comfort

7.9

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Alaska Airlines
8.0
Very good
9,692 reviews
Alaska Airlines
8.0
Very good
9,692 reviews

Comfort

7.9

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Delta
8.0
Very good
8,220 reviews
Alaska Airlines
8.0
Very good
9,692 reviews

Comfort

7.9

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

United Airlines
7.4
Good
8,766 reviews
Alaska Airlines
8.0
Very good
9,692 reviews

Comfort

7.9

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,692 reviews

Comfort

7.9

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

Frontier
6.0
Okay
3,355 reviews
Alaska Airlines
8.0
Very good
9,692 reviews

Comfort

7.9

Food

7.1

Entertainment

7.1

Overall

8.0

Crew

8.5

Boarding

8.2

Reviews

1 / 20

10.0
Excellent

Seleste,Dec 2024

FAT - SAN

The attention and efficiency of the staff and the good handling of the pilot

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.

  • What are the cheapest airlines flying from Knoxville to Ontario round-trip?

    Currently priced at $289, American Airlines will fly you from Knoxville to Ontario and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and United Airlines - these airlines can fly you to your destination from $294 and $405, respectively. These flights start at 28% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Knoxville to Ontario one-way?

    For one-way options, check prices for Frontier. According to our data, you can fly for as low as $165. Users have also found prices from $315 and $350 on United Airlines and Alaska Airlines, respectively.

  • Can I find deals for flights from Knoxville to Ontario that include hotel bookings?

    Yes. In addition to deals on Knoxville to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Knoxville to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Knoxville to Ontario.

  • Can I find deals for business class flights from Knoxville to Ontario?

    Yes. Cheapflights offers flight deals from Knoxville to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Knoxville to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Knoxville to Ontario (average of $246). Flying from Knoxville to Ontario in March is currently the most expensive (average of $315). 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.

See more FAQs

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Top 3 airlines flying from Knoxville to Ontario

Discover the top 3 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 February 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$168Average$318FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$288Average$389FlexibilityNo cancel feeOn-time71%
DeltaCheapest$288Average$373FlexibilityNo cancel feeOn-timeN/A
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