$121 Find Cheap Flights from Ontario to Tennessee - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Tennessee departing on 8/5. 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
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Tennessee

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Tennessee.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Tennessee.
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ontario to Tennessee

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Nashville
Nashville1 stop$322
Knoxville
Knoxville1 stop$260
Memphis
Memphis1 stop$242
Chattanooga
Chattanooga1 stop$349
Blountville
Blountville1 stop$349
Paducah
Paducah1 stop$699
Nashville
Nashville1 stop$322
Knoxville
Knoxville1 stop$260
Memphis
Memphis1 stop$242
Chattanooga
Chattanooga1 stop$349
Blountville
Blountville1 stop$349
Paducah
Paducah1 stop$699

Book Cheap Ontario to Tennessee Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Tennessee 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 Ontario to Tennessee

Mon, Aug 10 - Wed, Aug 12
Frontier Logo
6:00 am - 7:03 pm
ONT
-
MEM
11h 03m
1 stop
Frontier Logo
7:48 pm - 11:50 pm
MEM
-
ONT
6h 02m
1 stop
$242Frontier
Wed, Jul 22 - Wed, Jul 29
Frontier Logo
6:00 am - 7:24 pm
ONT
-
TYS
10h 24m
1 stop
Frontier Logo
8:19 pm - 10:04 am
TYS
-
ONT
16h 45m
1 stop
$260Frontier
Sat, Sep 19 - Thu, Oct 1
Multiple Airlines Logo
2:55 pm - 1:44 pm
ONT
-
TYS
19h 49m
1 stop
Multiple Airlines Logo
6:30 am - 11:55 pm
TYS
-
ONT
20h 25m
1 stop
$278Multiple Airlines
Mon, Aug 10 - Mon, Aug 17
Frontier Logo
6:00 am - 7:03 pm
ONT
-
MEM
11h 03m
1 stop
Frontier Logo
7:48 pm - 11:50 pm
MEM
-
ONT
6h 02m
1 stop
$278Frontier
Thu, Sep 10 - Sun, Sep 13
Frontier Logo
6:00 am - 2:22 pm
ONT
-
MEM
6h 22m
1 stop
Frontier Logo
3:17 pm - 10:43 am
MEM
-
ONT
21h 26m
1 stop
$280Frontier
Thu, Aug 20 - Sun, Aug 23
Multiple Airlines Logo
10:49 am - 2:01 pm
ONT
-
TYS
24h 12m
2 stops
Multiple Airlines Logo
7:00 am - 11:55 pm
TYS
-
ONT
19h 55m
1 stop
$296Multiple Airlines
Sat, Aug 1 - Sat, Aug 8
American Airlines Logo
11:59 pm - 8:35 am
ONT
-
MEM
6h 36m
1 stop
American Airlines Logo
7:13 am - 1:53 pm
MEM
-
ONT
8h 40m
1 stop
$309American Airlines
Thu, Aug 20 - Sun, Aug 23
American Airlines Logo
12:33 pm - 10:56 pm
ONT
-
CHA
7h 23m
1 stop
American Airlines Logo
6:14 am - 9:34 am
CHA
-
ONT
6h 20m
1 stop
$349American Airlines
Sun, Aug 23 - Sat, Aug 29
Delta Logo
10:00 pm - 9:30 am
ONT
-
TRI
8h 30m
1 stop
Delta Logo
1:45 pm - 6:30 pm
TRI
-
ONT
7h 45m
1 stop
$349Delta
Wed, Oct 7 - Wed, Oct 14
Delta Logo
12:00 pm - 10:24 pm
ONT
-
TRI
7h 24m
1 stop
Delta Logo
6:05 am - 11:27 am
TRI
-
ONT
8h 22m
1 stop
$384Delta
Booking Insights

KAYAK's insights & trends for Ontario to Tennessee flights

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

How much is a round-trip flight from Ontario to Tennessee?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Ontario to Tennessee departing in August.

What is the cheapest Ontario to Tennessee flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Tennessee from Ontario found in the last 5 days was to Nashville, at $341 round-trip. The most popular route is from Ontario (ONT) to Nashville (BNA), and the cheapest round-trip airline ticket found on this route in the last 5 days was $341.

What is the cheapest time of day to fly to Tennessee?

The average price for all round-trip flights from Ontario to Tennessee depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Tennessee is generally in the morning, when round-trip flights cost $529 on average. The most expensive time of day to fly to Tennessee is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $655.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Tennessee, 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 Ontario to Tennessee is November, when tickets cost $85 (return) on average. On the other hand, the most expensive months are March and June, when the average cost of round-trip tickets is $236 and $223 respectively.

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

The average price of all round-trip flights from Ontario to Tennessee clicked on KAYAK for each day over the last 12 months.

When flying from Ontario to Tennessee, you should consider leaving on a Saturday and avoid Sundays if you are looking for the best rates. For your return to Ontario, you’ll find the best rates on Tuesdays and the most expensive ones on Sundays.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Ontario to Tennessee, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Ontario to Tennessee, you should book around 3 weeks before departure, which saves you about 35% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 12 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$121
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly and prices are also 3% lower on average.
Flight from Ontario to Memphis

FAQs - booking Tennessee flights

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

    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 Ontario to Tennessee.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Ontario to Tennessee 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 Ontario to Tennessee?

    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 Ontario to Tennessee 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 Ontario to Tennessee?

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

Reviews of the top 5 airlines serving from Ontario to Tennessee

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Tennessee. 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 Ontario to Tennessee? 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
SouthwestOverall score based on 4246 reviews
7.5Entertainment
7.0Food
8.1Boarding
8.6Crew
8.0Comfort
Airline reviews

Flight was delayed, full flight and I had to change gates. Southwest flights are always late later in the day.

4.0 OkaySteven, Jun 2026
ONT - LAS
Read more Southwest reviews

Flight was delayed, full flight and I had to change gates. Southwest flights are always late later in the day.

if I was good. Not happy that I have to pay extra money to get the seat I need for lake room, but I guess that’s a sign of the times.

Great flight. Good snacks and drinks. Grateful it was free. The flight from Nashville to louisville, i think her name was Tracy (not sure that's right) super awesome, nice and cheerful. She really enjoyed being at work today! She was the person who scanned the boarding pass on flight wn941. She should be recommended for a raise !

Southwest was greaat! The most expensive but the least upsetting for those we were flying to see.

I was supposed to be on a later flight. When I showed up at the gate, the woman working there was extremely helpful getting moved up to this earlier flight.

Flight was on time. Wi-fi was a little spotty/slow. Boarding and exit were efficient.

The weather could have been better. There was a 40 minute ATC delay in SFO because of marine fog and a micro cell storm delayed landing and take-off at Nashville. The gate was changed 5 minutes from boarding from gate B3 to gate C23 at Nashville airport.

My flight was delayed 50 minutes and we were rushed to board to then sit for 15 minutes until the pilot arrived. Unacceptable since we could have waited to board. Also the delayed flight was updated AFTER we boarded to more than the 10 minutes as originally stated.

Wifi wasn't working well on the flight. Couldn't access entertainment options

I liked receiving attention from aged and well experienced flight attendants. I disliked the non-gluten-free snack but I brought my own so I was OK.

The flights are constantly late anymore, and they won't even give you a glass of water on the plane. For years, they were able to do a service on this flight from Atlanta to Knoxville and Knoxville Atlanta now they say it's too short of a flight. You can't even get a quick drink of water.

Should never have had to go to Detroit from Orlando back to Tennessee!

My flight was canceled on Sunday. Rebooking took three hours. Had to pay for accommodations another night. New flight was delayed for 5 hours, all that was sent was a 12 dollar food voucher, which doesn’t tell you how to use it. Then when we landed we had to sit on the plane for an hour before we could get off.

Same experience as the flight from Norfolk to Atlanta where people are boarded in zones that don't make sense. People behind you on the plane will get on before you and they take the luggage space on your row.

Smallest leg room I've ever had on a plane.

It was a great flight and the stewards and stewardess were all kind and accommodating!! The seats were comfortable and entertainment screen excellent!

737-800 in first class was pretty dumpy. Seat had an uncomfortable angle, storage under the seat was blocked so even my very modest backpack didn't fit, power outlet was flaky. Weird tiny seat pockets that couldn't hold a gallon ziploc bag, emesis bag missing, etc. etc. No in-flight service due to turbulence. Crew was excellent, boarding was smooth despite a full flight.

The flight was overbooked and the staff at the gate started calling for volunteers to drop out and offering incentives. That delayed the flight

There was no wifi even after my husband paid for wifi it wasn’t working. The plane looked and felt old.

Update the cabin with tv screens or at least music sources.

They delayed the flight 3 hours because it wasn't full they moved us to 5 different gates probably the worst airline ever not even spirit is this bad.

Seat pitch is horrible especially on the 15 hour flight. Gate crew at SFO was Outstanding. The flight crew was also great.

Poor communication, flight was delayed for preventable reasons. I missed my connection.

We had excellent customer service despite the chaos at George Bush airport in Houston!

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

Was happy we finally got upgraded in 1st class. The seat getting old. The cushiness need some improvement.

Once we got in the air the pilot made up some of the time of the delay. So that was really nice.

We boarded but then sat there waiting on some missed connection people to get on so we sat for about 15 minutes for that. Then we sat again because the passenger manifest was wrong and they had to figure it out before we could leave. That took about another 20 minutes or so. The crew was working hard to figure it out so it’s not their fault. It ended up being a system glitch where someone was upgraded to first class while another person was also in the same seat and it just created a mess that took a little while to figure out. They literally went to every person on the plane asking their names to see who was sitting in the wrong seat. I also hate the entertainment that must be watched on your phone or tablet. Just give us setback screens. It’s so much better. Almost every Delta flight has this now and it is so nice to have them. The crew did a great job. I have no complaints from them. They were very hard working, even with the mishap and a disgruntled passenger.

Had a short delay once we boarded the aircraft in Chicago, but it was fixed in no time flat then we were on our way. The pilot was able to make up the time lost and we landed 5 minute later then schedualed . Great service

For some strange reason I was put in zone 5 for boarding even though I had paid premium price for a premium seat right behind business class. This must have been a flaw because everyone else around me in the same zone (row) had been placed in zone 3.

Delayed by 5 hours and I had to wit in the airport for more than 6+ hours.

technology worked well and everything ran smoothly. The seats are quite cramped so please don't try to re-engineer the cabin to squeeze more bodies on board.

Ontario airport boarding was very easy to park and access, is clean and TSA took 10 minutes total. Check-in was a breeze and cruise was very nice.

Flying in the United States with the major airlines has become so underwhelming. A 2-3hr flight in most other parts of the world with the major carriers of the area comes with newer, CLEANER aircraft and significantly better in flight service in terms of both staff attitude and a actual meal service.

Good flight, seated and had a water within 5 minutes. Crew was hospitable.

Delays experienced in boarding/take off due to incoming plane delayed. However, the boarding time/depart time in the app was significantly delayed in providing these updates. Usually not updated until an hour after we should have already boarded. Poorly managed.

The flight was on time and arrived early. The crew were friendly and helpful.

The chair cushions may need an upgrade. I have been noticing they are so worn out, thin so you’d sit in a dip 😄. Other than that, all was an enjoyable trip. Thanks AA!

VERY disappointed at the agent checking in my luggage. I know that the weight limit is 23 kg, a little over 50 pounds (50.71 pounds). Yet the agent kept repeating "50 pounds". So I said, the limit is 23 kg, and she had the audacity to say 'no, it is 22 kg!" Imagine my surprise. Was she ignorant or was she poorly trained? Not sure. The boarding process was pretty good. The speakers were loud enough so I still could hear them despite inconsiderate passengers continuing to speak while the announcements were going on. During the flight, the teenage girl sitting behind me kept pressing her feet to the back of my chair. I turned around several times, yet she did not get the hint. I did not make a fuss since I sense I had a bad streak that night with AA, so I just did the best I can to lean forward and not let that bother me.

It was wonderful upgrading to first. Plane was so cold thou. Crew was great. Wish there was a food option in first for such a long flight. Doesnt matter the time of day. Chintzy.

The takeoff was the smoothest I've ever experienced on any airline and this is the first time I've flown on frontier so this was an extremely pleasant surprise!

A lady asked to stop the flight after the tunnel pulled away and we began to depart a flight that was already hours late. The attendance respectfully stopped the the plane and had the tunnel return. After the tunnel returned the passenger claimed to have changed her mind . The tunnel was then put in reverse and the passenger remained on the plane .. They should have sent the sick passenger off the plane like initially replaced. They existed a couple off the plane prior to that situation.. So.. all and all.. it was a long and flight.. .

We understand and comply with Frontier’s bag sizes. We’ve had some problems in past while having to await other passengers who do not understand the baggage restrictions or have not prepaid and that is usually our biggest concern (others delaying us) with flying Frontier. Flying OUT of ONT, however, has always been a great experience. I’ve also noted even on delayed Frontier flights very knowledgeable pilots who manage expectations well.

There were a lot of issues every step of the process. Check in, security, boarding, and dealing with luggage. Plus the money you think you are saving you end up using in hidden fees.

Long lines, rude staff, everything that's offered you have to pay for.

The last time I flew Frontier was in the 1960s when it was a “real” airline. We flew this time because of the price & schedule. As the saying goes, you get what you pay for.

I appreciated the upgrade to free cary-on bag and seat selection at no charge

Flight was delayed on the runway for 40 minutes the crew did not even offer even water to passengers to compensate for the flight delayed. The flight was delayed due to aircraft mechanical issues. Worst customer service ever

This isna terribly run airlines. If you're one minute late, they will deny your ticket. Don't waste your time or money

Flight was delayed for more than 3 hours, crew at ONT airport was rude, and when we got to DFW the airplane had an issue landing, we had to be taxied to the terminal, and the luggage was hold until the next day.

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

Information on your arrival and departure airports