$147 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 2/14. 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
1 adult, Economy, 0 bags

KAYAK searches 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
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Flight Deals

Book Cheap Knoxville to Ontario Plane Tickets

 
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 for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Knoxville to Ontario

Thu, Feb 12 - Thu, Feb 19
Multiple Airlines Logo
7:00 am - 11:20 pm
TYS
-
YYZ
16h 20m1 stop
Multiple Airlines Logo
8:20 pm - 4:59 pm
YYZ
-
TYS
20h 39m1 stop
$244Multiple Airlines
Thu, Feb 12 - Tue, Feb 17
Multiple Airlines Logo
7:00 am - 11:20 pm
TYS
-
YYZ
16h 20m1 stop
Multiple Airlines Logo
8:20 pm - 3:02 pm
YYZ
-
TYS
18h 42m1 stop
$251Multiple Airlines
Thu, Feb 12 - Tue, Feb 17
Multiple Airlines Logo
7:00 am - 11:20 pm
TYS
-
YYZ
16h 20m1 stop
Multiple Airlines Logo
3:40 pm - 10:08 am
YYZ
-
TYS
18h 28m1 stop
$252Multiple Airlines
Thu, Feb 12 - Wed, Feb 18
Multiple Airlines Logo
7:00 am - 11:20 pm
TYS
-
YYZ
16h 20m1 stop
Multiple Airlines Logo
8:20 pm - 10:16 pm
YYZ
-
TYS
25h 56m1 stop
$255Multiple Airlines
Thu, Feb 12 - Fri, Feb 20
Multiple Airlines Logo
7:00 am - 11:20 pm
TYS
-
YYZ
16h 20m1 stop
Multiple Airlines Logo
8:20 pm - 6:58 pm
YYZ
-
TYS
22h 38m1 stop
$258Multiple Airlines
Thu, Jan 22 - Sun, Jan 25
United Airlines Logo
11:07 am - 9:18 pm
TYS
-
YOW
10h 11m1 stop
United Airlines Logo
7:27 pm - 10:57 am
YOW
-
TYS
15h 30m1 stop
$348United Airlines
Thu, Jan 22 - Sun, Jan 25
United Airlines Logo
1:59 pm - 9:18 pm
TYS
-
YOW
7h 19m1 stop
United Airlines Logo
6:00 am - 7:27 pm
YOW
-
TYS
13h 27m2 stops
$436United Airlines
Thu, Jan 22 - Sun, Jan 25
United Airlines Logo
9:30 am - 5:18 pm
TYS
-
YOW
7h 48m2 stops
United Airlines Logo
5:00 am - 2:49 pm
YOW
-
TYS
9h 49m2 stops
$447United Airlines
Thu, May 7 - Sun, May 10
American Airlines Logo
7:33 pm - 11:44 am
TYS
-
YUL
16h 11m1 stop
American Airlines Logo
12:30 pm - 9:35 pm
YUL
-
TYS
9h 05m1 stop
$485American Airlines
Fri, Apr 10 - Tue, Apr 14
American Airlines Logo
7:33 pm - 11:44 am
TYS
-
YUL
16h 11m1 stop
American Airlines Logo
12:30 pm - 9:35 pm
YUL
-
TYS
9h 05m1 stop
$486American Airlines
Booking Insights

KAYAK's insights & trends for Knoxville to Ontario flights

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.

Which airlines fly non-stop between Knoxville and Ontario?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Knoxville to Ontario.

There are 3 airlines that fly nonstop from Knoxville to Ontario. They are: American Airlines, Delta and United Airlines. The cheapest price of all airlines flying this route was found with Delta at $158 for a round-trip flight to Toronto Pearson Intl Airport (YYZ). On average, Delta offers the best prices for nonstop flights between Knoxville and Ontario.

Which airlines provide the cheapest flights from Knoxville to Ontario?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Knoxville to Ontario were found on United Airlines ($348) and Air Canada ($436).

Good to know

Cheapest flight$147
Flight from Knoxville to Ottawa

FAQs - booking Ontario flights

  • 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 from Knoxville to Ontario 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 from Knoxville to Ontario with an airline and back with another airline.

  • 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 from Knoxville to Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 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.
7.9
DeltaOverall score based on 8013 reviews
8.5Crew
8.1Boarding
7.8Entertainment
7.9Comfort
7.2Food
Airline reviews

This flight was no comparison to our prior flight. I'm thinking it all has to do with the age of the aircraft.

10.0 ExcellentAnonymous, Dec 2025
DCA - SEA
Read more Delta reviews

This flight was no comparison to our prior flight. I'm thinking it all has to do with the age of the aircraft.

This flight was a first class choice and left much to be desired. Seat backs on seats were falling apart and torn. Seats actually didn't come to a "full & upright position". Pull out table was sprung. Not any significant leg room. All in all we were on an obviously older plane and felt overcharged for what we received as first class.

A 12 hour flight during the day with one real meal service - are you kidding? Also the breakfast was one of the worst and not what was listed

Flight was delayed several times. At one point, they "pulled back" 15 minutes from the delayed boarding and sent a text saying we would board sooner than previously advised. The flight then was delayed again. And when we boarded, there was an unspecified technical issue which had us waiting in the plane for about an hour.

Delta is a good airline. I've never had an issue with Delta. I'll continue to fly with them until they show me that I shouldn't.

The only thing nice I can say is the flight crew was really nice and apologetic about the situation. They shared as much information as they had and advised us on what we could do about missing connecting flights. The boarding process was so slow. The gate agent was working by herself and should have had someone working with her. It took almost an hour to board because she was trying to board a full flight of people and provide customer service to everyone who was flying standby and/or had questions. It was really chaotic. This didn't help the fact that we were delayed and folks were missing connections the longer it took.

The gate attendants and the crew were terrible. Because of high winds, they needed to carry more fuel, so they had to get volunteers to take the next flight at 6 am the next day. They did a terrible job of it - our flight ended up taking off just under 3 hours of the scheduled time. I hope to never fly Delta again.

Did not realize internet screen was hidden between seats and no info printed!!!!

2 of the seats in row 31 the entertainment system was not working, and one seat the tray table did not go all the way down. Flight arrived early and departed on time which was great.

Very good flight crew and very nice people staff were incredible especially the gate agent

Not United Airlines' fault. It's ORL airport's fault.

United overall experience is great these days. Airport experience was very organized. Staff on flight were great. App and information as good as it gets.

Very nice flight love the small aircraft. We had a wonderful flight attendant. Nice to see someone that really enjoys her job. Don't have her name but had a southern accent.

Even though we were delayed, we were able to make our connection

Seats in waiting area and on plane hard as rock. Fast internet on the flight was great! Crew was kind.

Another delayed flight. When the delays exceed the duration of the flight, it’s a problem.

Not the fault of United—weather, reroute around weather, time sitting on tarmac, arrived couple hours late, too late for train into city necessitating a much pricier cab but weather…can’t be helped.

Flight was good but there are way to many announcements for credit cards etc.

Trip was great. A wild landing in Ottawa with the wind and rain, but the pilot did a great job. Always love flying United.👍

The internet service I paid for didn’t work at all and the flight crew was not very friendly.

After the door had been closed, the cockpit makes an announcement that catering is running late and it is not the airline's fault. It is their fault in the sense that we had to sit for 2 hours or more when we could have stayed in the terminal. Poor communications between catering and airline. This caused a young man to lose his temper and he went storming out hitting objects. He had complained to the gate agent that he had already waited at the gate 7 hours and when can the airplane leave? Airilnes do a poor job of explaining delays, maintenance issues, etc. whereas being truthful may gain more sympathy or understanding.

The flight was very smooth and the meal in business class was great.

The captain brought my 6 year old son into the cockpit and allowed him to ask questions, sit in the captain’s chair and talk about all the gears and levers. Made the trip very special for him.

I take this flight about 6-8 times per year. It is convenient and saves an hour or two by skipping PDX, SEA, PHX, or ORD (but it takes longer to get bags to the carousel than Alaska Airlines). I wish the food service were better (but they might cut back on it because it is a red-eye). The WifI seems to go down about an hour out of Anchorage, and then comes back about an hour later...so be warned if this is an issue for you.

Better service. No food options, but we did get drinks and a cookie.

Boarding was organized and timely. Food was mediocre, especially for first class travel.

We were 4+ hours delayed. AA is absolutely obnoxious. They just kept pushing back the time to the point where we did not get into Vegas until after midnight when we were supposed to arrive like 845pm.

My last flight on 25 Dec, it’s Christmas Day, everyone happy and very good mood. I really enjoy traveling with Americans Airlines from Miami to Minneapolis my home town after long flight from lhe to Doha then Miami. Thank you again to make my travels comfortable and relaxed. Best regards

The boarding process needs to be fixed. The zone don't work, especially when there is hardly anyone in zones 3, 4,and 5, leaving the majority of the passengers backed up in the aisle, especially because passengers seated near the front are blocking passengers who are seated in the rear of the plane. It would also help if the size of carry on bags was more strictly enforced.

I requested a low sodium meal. Reason being, I take medicine for high blood pressure and I wear compression socks on long flights to help with leg swelling. Having less sodium in meals really helps me feel better on long flights. I received my initial low sodium meal after takeoff. Just before landing, the crew came through with the meal cart and offered me what was being served. I said no thank you and then noticed my low sodium meal in the meal cart, with my name and seat assignment on it. I motioned to the crew member, but he grabbed the meal cart and proceeded to move to the rear of the aircraft. He didn’t see me or other passengers who had attempted to get this attention. He was more concerned about completing meal service since we were due to land in under 45 minutes. I pressed the call light five times from my seat to receive help, but no crew member responded to me. So, I didn’t receive a second meal, one that I requested (the low sodium option). This led me to have a migraine from only eating one meal on an 11-hour flight. This is why I’m not a fan of flying US-based airlines overseas. The crew members continue to show the absolute worst customer service experience. I would not recommend flying American for overseas flights.

Everything you need to know for your flight from Knoxville to Ontario

Information on your arrival and departure airports