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TYS - ONT

$90 Find cheap flights from Knoxville to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Knoxville to Ontario departing on 6/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
sáb. 6/29
sáb. 7/6

Search hundreds of travel sites at once for deals on flights to Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Knoxville to Ontario, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Knoxville to Ontario, as well as popular online travel agencies
In the last 7 days travelers have searched 42,686,544 times on KAYAK, and here is why:

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Cheap flight deals from Knoxville to Ontario (TYS-ONT)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Knoxville to Ontario that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
5:40 pm - 11:44 pmTYS-ONT
9h 04m1 stop
1:32 pm - 5:17 pmONT-TYS
24h 45m1 stop
$190Frontier
Find Deal
sáb., ago. 17 - mar., ago. 20
7:47 pm - 11:49 pmTYS-ONT
7h 02m1 stop
12:59 am - 9:40 pmONT-TYS
17h 41m1 stop
$227Frontier
Find Deal
mié., jul. 3 - dom., jul. 7
5:10 am - 11:53 amTYS-ONT
9h 43m2 stops
10:30 pm - 8:36 amONT-TYS
7h 06m1 stop
$230American Airlines
Find Deal
sáb., ago. 17 - mar., ago. 20
5:10 am - 11:53 amTYS-ONT
9h 43m2 stops
9:35 am - 9:36 pmONT-TYS
9h 01m2 stops
$235American Airlines
Find Deal
sáb., ago. 17 - mar., ago. 20
4:45 pm - 8:48 pmTYS-ONT
7h 03m1 stop
6:00 am - 3:45 pmONT-TYS
6h 45m1 stop
$278United Airlines
Find Deal
vie., ago. 16 - dom., ago. 18
5:25 am - 10:13 amTYS-ONT
7h 48m1 stop
10:00 pm - 9:17 amONT-TYS
8h 17m1 stop
$408Delta
Find Deal
mar., jul. 9 - dom., jul. 14
5:20 am - 11:22 amTYS-ONT
9h 02m1 stop
10:59 pm - 10:51 amONT-TYS
8h 52m1 stop
$493Delta
Find Deal
vie., nov. 8 - vie., nov. 15
9:00 am - 5:28 pmTYS-ONT
11h 28m1 stop
5:10 am - 10:30 pmONT-TYS
14h 20m1 stop
$640United Airlines
Find Deal
jue., jun. 27 - jue., jul. 4
7:55 am - 7:25 pmTYS-ONT
14h 30m2 stops
7:55 pm - 11:56 amONT-TYS
13h 01m2 stops
$868Alaska Airlines
Find Deal
mié., jul. 3 - lun., jul. 8
2:32 pm - 11:58 pmTYS-ONT
12h 26m2 stops
4:21 pm - 10:36 amONT-TYS
15h 15m2 stops
$1,218Alaska Airlines
Find Deal
dom., jun. 9 - mié., jun. 12

Flights from Knoxville to Ontario - Travel Insights & Trends

Get data-powered insights and trends into flights from Knoxville to Ontario to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Knoxville to Ontario?

The average price of all flights from Knoxville to Ontario clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from Knoxville to Ontario, look for departures on Tuesdays and avoid leaving on a Sunday, as it's usually the priciest day. When flying back from Ontario, Wednesday is the cheapest day to fly and Sunday is the most expensive.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Knoxville to Ontario, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Knoxville to Ontario is February, where tickets cost $344 on average. On the other hand, the most expensive months are May and December, where the average cost of tickets is $928 and $568 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Knoxville to Ontario, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Knoxville to Ontario, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 39 days before departure.

Which airlines provide the cheapest flights from Knoxville to Ontario?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the past 3 days, the cheapest one-way tickets to Ontario from Knoxville were found on Frontier ($90) and Delta ($138), and the lowest round-trip tickets were found on Frontier ($190) and American Airlines ($230).

Good to know

Low season

April

High season

May

Cheapest flight

$90
Best time to beat the crowds with an average 13% drop in price.
Most popular time to fly with an average 85% increase in price.
Flight from Knoxville to Ontario

When to book flights from Knoxville to Ontario

Are your dates flexible? Find out the best times to travel from Knoxville to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Knoxville to Ontario

  • What is the cheapest flight from Knoxville to Ontario?

    In the last 3 days, the lowest price for a flight from Knoxville to Ontario was $90 for a one-way ticket and $190 for a round-trip.

  • Do I need a passport to fly between Knoxville and Ontario?

    A passport is not required to fly from Knoxville to Ontario.

  • Which aircraft models fly most regularly from Knoxville to Ontario?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Knoxville to Ontario?

    SkyTeam, oneworld, and Star Alliance are the airline alliances operating flights between Knoxville and Ontario, with oneworld being the most commonly used for this route.

  • Which is the best airline for flights from Knoxville to Ontario, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Knoxville to Ontario are Delta and United Airlines. With an average price for the route of $488 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $487 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Knoxville to Ontario?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Knoxville to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Knoxville to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Knoxville is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Knoxville to Ontario?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Ontario with an airline and back to Knoxville with another airline. Booking your flights between Knoxville and ONT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Knoxville to Ontario?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Ontario from Knoxville up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 4 airlines serving from Knoxville to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Knoxville to Ontario. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Knoxville to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10457 reviews
7.9Comfort
8.6Crew
7.4Food
8.2Boarding
8.0Entertainment
Airline reviews

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

8.0 ExcellentLiam, May 2024SLC - SJC
Read more about Delta reviews

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

Your crew could maybe answer the call bell at least one of the times I pressed it. I pressed it first time with 2.5 hours left in our flight bc my partner was hungry and wanted a sandwich. We finally got the sandwich with 40 mins left in the flight.

The Flight crew didn’t serve us until about 1.5 hours into the flight because of turbulence but after it ended it was fine to move around. They served us water only and snacks and then NEVER, NOT ONE TIME came through to collect trash until right before landing about 1.5 hours later. There was absolutely no need for that. They crew was just standing around talking and visiting with each other and really never tried to see if we might want something besides water or even try to come pick up trash. This is VERY unusual for a Delta flight but it was not what I would have expected for a 4 hour flight.

From Atlanta to Cabo I would have hoped on a plane that size I would have been able to breathe and wiggle my feet a little! The leg room in that plane is non existent and I am only 5”4’. And the air vent either wasn’t working very well or just could not blow air from the ceiling to the seat area as I was suffocating through the entire flight! And please don’t say I would have been more comfortable in first class because I cannot afford those rates and have always travelled Main Cabin without issues !

There was a loud squeaky sound the whole time we were flying.

Had a broken tray in business class. Crew just shrugged it off.

I didn’t like that I could not select my seat and was assigned a seat when I checked in at LAX

Great experience overall. Check in at Austin was congested as they only have about 6 check in kiosks, one was broken, and there was a lot of Spring Break travelers.

Bag drop off was slow and annoying. Only 2 agents at the entire delta desk, and no one directing traffic for what line to be in, many confused people slowed down the process. Boarding was fine. Seats in Delta comfort plus were fine. Snacks were great! Definitely a bonus. The entertainment system was awful — old, slow, not responsive, and completely unable to play games due to some kind of error. But on the other hand, thank you to Delta for the free WiFi. That made it better.

Everything was very good other than I had selected a specific seat when I booked the flight and they changed it once I checked-in the day before my flight. I was still in first class but lost my aisle seat for a window seat. Being tall, the aisle offers more comfort so I always select an aisle seat.

Dinner was okay but the breakfast was not eatable on the flight San Francisco to Zurich.

Check in etc was very good. As for on the plane, it was like flying in a freezer. It was so cold, i have flown for years and never been so cold on a plane. Staff on board said its always cold when flying which is a load of rubbish. They wouldnt put any heating on and now i have the flu because of this .

I’ve had a couple flights this week on United that were delayed by an hour or more

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

Generally good but there wasn’t any staff available when my luggage didn’t appear at baggage claim in Fresno. It took about half an hour to locate a staff member to open up the locked room where it was being kept.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

Our original business class flight was cancelled so we not only downgraded but we were also spread out across the plane not sitting together in separate middle seats. My poor kids were scared and couldn’t see me on the flight and the crew wasn’t sensitive to the situation and what the airlines did to us. Very dissatisfied with United airlines.

The WiFi didn’t work and the seats are too close together. Very uncomfortable.

So so. Terrible aircraft choice for that leg of the flight.

delay several times and wait extra long to board. no entertainment service because there are problem for some rows. always encounter some delays for the last flight of the day.

There were delays on both ends. It made it less than excellent. This plane was great though

Everything was great except for the wifi was junk. Crew was super friendly and helpful

Attendants were rude. Scowling. Seats were miserable and we paid extra.

Fight crew was not very attentive and the bastions were gross!

Our flight was great we left Kona earlier and got into LAX almost an 1hour earlier as well. LAX AA is in repair so to get out and found our bus to get pick up was a bit confusing.

Plane was good but was delayed. probably not AA fault but caused a 1 hour delay. Seating was cramped.

5 hour flight - full flight - not enough room to use my computer - slightly delayed - Admirals club was excellent quality food, drink made up for flight seating. No food offerred on flight, you ahd to prebook.

We experience delays on departure and connecting flights resulting in 14 hour to our next departure. We were accommodated with a night's stay but was only provided a 12 dollar meals accommodation. The airlines rules state.at least 50 dollars. In any case, it can not make up for the whole day missed on our vacation in Sydney Australia.

I can say I will not be taking this airline again any time soon. Seat were uncomfortable and too tight. Lack of chair screen and little overhead space.

Plane felt so crowded and tightly packed. The chair itself was not comfortable.

9hrs delay and didn’t provided anything until after flight landed $75 voucher for fiuture travel no meals or anything.

It was ridiculously hard to check in for the flight, and Frontier charged us a LOT of money to have a carry on suitcase, and then told everyone we could not carry on bags and had to check them through at the gate, and didn't refund the extra money we paid to have the suitcase as carry on.

I had a terrible experience with Frontier. I arrived before the 60 minute cut off and was told that Frontier has a two hour window for bags. I was then told the next available flight wasn’t until the end of the day (I had booked a 6am flight). I took a look around and saw other people being told that they could not board their flights or that they had to pay additional fees. I opted to rebook on American Airlines. There’s absolutely no straightforward way to contact Frontier, so this ticket was a complete waste of money. Oh - and the kicker is that the lady lied about the two hour cut off.

Frontier won’t help you at the airport without paying $25. Carry on was $75. Then you get on the plain and every beverage or snack is also a charge. Seats are hard and real packed in. I would never fly them again.

Worst experience I have seen. The flight was cancelled without any reason.

My experience with frontier staff at the Denver airport was absolutely horrible. The manager on duty was even worst if was the worst experience I have ever had, I have never been treated so poorly as a customer in my life! The staff was extremely rude, eye rolls and attitude and then refusal to help me at all. I wish I could never fly frontier again that’s how horrible it was!

The Frontier app wasn’t working. So I could not pay for a carry on the week prior to flying. They charged me 99$ at the gate to carry on a duffle bag.

Good for the price. My only complaint is that the pilot should keep the air flowing while passengers are waiting to getting out of airplane.

They cancelled the flight then did nothing to help us rebook. It was awful - I won’t fly with them again

The truck that was refueling the plane drove away with the hose still connected to the plane and ripped part of the plane off with it

Book cheap flights from Knoxville to Ontario

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Knoxville to Ontario found on KAYAK in the last 72 hours.
6/5mié.
1 stopFrontier
7h 02mTYS-ONT
$90
6/10lun.
1 stopFrontier
11h 46mTYS-ONT
$96
8/19lun.
1 stopFrontier
21h 15mTYS-ONT
$100
8/7mié.
1 stopFrontier
6h 51mTYS-ONT
$110
8/6mar.
1 stopDelta
8h 57mTYS-ONT
$138
8/9vie.
1 stopDelta
6h 31mTYS-ONT
$209
6/18mar.
1 stopAmerican Airlines
7h 48mTYS-ONT
$268
6/20jue.
1 stopAmerican Airlines
6h 45mTYS-ONT
$269
8/31sáb.
2 stopsUnited Airlines
15h 45mTYS-ONT
$302
7/16mar.
1 stopUnited Airlines
6h 51mTYS-ONT
$314

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Last minute flights from Knoxville to Ontario

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Knoxville to Ontario that are departing in the next 10 days.
6/1sáb.
multi-stopFrontier
9h 46mTYS-ONT
6/12mié.
multi-stopFrontier
7h 44mONT-TYS
$295
6/1sáb.
multi-stopFrontier
9h 46mTYS-ONT
6/14vie.
multi-stopFrontier
15h 36mONT-TYS
$297
6/1sáb.
multi-stopFrontier
9h 46mTYS-ONT
6/11mar.
multi-stopFrontier
14h 48mONT-TYS
$298
6/3lun.
multi-stopFrontier
15h 59mTYS-ONT
7/19vie.
multi-stopFrontier
16h 12mONT-TYS
$336
6/4mar.
multi-stopAmerican Airlines
9h 21mTYS-ONT
6/7vie.
multi-stopAmerican Airlines
8h 35mONT-TYS
$472
6/4mar.
multi-stopAmerican Airlines
9h 33mTYS-ONT
6/7vie.
multi-stopAmerican Airlines
6h 40mONT-TYS
$477
6/4mar.
multi-stopUnited Airlines
7h 04mTYS-ONT
6/9dom.
multi-stopUnited Airlines
7h 26mONT-TYS
$699
6/4mar.
multi-stopUnited Airlines
7h 11mTYS-ONT
6/7vie.
multi-stopUnited Airlines
14h 15mONT-TYS
$771
6/3lun.
multi-stopAlaska Airlines
12h 28mTYS-ONT
6/4mar.
multi-stopAlaska Airlines
12h 05mONT-TYS
$819
6/3lun.
multi-stopAlaska Airlines
12h 56mTYS-ONT
7/17mié.
multi-stopAlaska Airlines
14h 01mONT-TYS
$1,058

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Knoxville - Ontario Flights

Departure:

Knoxville (TYS)United States

Destination:

Ontario (ONT)United States

Return flight deals:

Ontario - Knoxville

Cabin classes: