$80 Find Cheap Flights from Ontario to Kentucky

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 Kentucky departing on 4/17. 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 Kentucky

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Kentucky, 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 Ontario to Kentucky, as well as popular online travel agencies
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Cheap Flights from Ontario to Kentucky

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Louisville
Louisville1 stop$273
Lexington
Lexington1 stop$233
Paducah
Paducah2 stops$440
Nashville
Nashville1 stop$259
Louisville
Louisville1 stop$273
Lexington
Lexington1 stop$233
Paducah
Paducah2 stops$440
Nashville
Nashville1 stop$259

Book Cheap Ontario to Kentucky 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 Kentucky 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 Kentucky

Tue, May 12 - Tue, May 19
Frontier Logo
6:00 am - 12:00 pm
ONT
-
CVG
27h 00m
1 stop
Frontier Logo
12:55 pm - 10:05 am
CVG
-
ONT
24h 10m
1 stop
$160Frontier
Thu, Apr 23 - Thu, Apr 30
Frontier Logo
12:59 am - 7:12 pm
ONT
-
CVG
15h 13m
1 stop
Frontier Logo
6:00 am - 3:30 pm
CVG
-
ONT
12h 30m
1 stop
$161Frontier
Fri, Apr 17 - Sat, Apr 25
Delta Logo
10:15 pm - 8:52 am
ONT
-
BNA
8h 37m
1 stop
Delta Logo
5:05 pm - 10:43 pm
BNA
-
ONT
7h 38m
1 stop
$263Delta
Sat, May 2 - Wed, May 6
Southwest Logo
9:30 am - 7:35 pm
ONT
-
TYS
7h 05m
1 stop
Southwest Logo
7:05 am - 12:15 pm
TYS
-
ONT
8h 10m
2 stops
$264Southwest
Tue, May 26 - Fri, May 29
Delta Logo
10:00 pm - 7:37 am
ONT
-
BNA
7h 37m
1 stop
Delta Logo
7:27 pm - 11:34 pm
BNA
-
ONT
6h 07m
1 stop
$269Delta
Sat, May 2 - Wed, May 6
Southwest Logo
8:40 am - 7:35 pm
ONT
-
TYS
7h 55m
2 stops
Southwest Logo
7:05 am - 12:15 pm
TYS
-
ONT
8h 10m
2 stops
$269Southwest
Wed, May 13 - Tue, May 19
American Airlines Logo
9:24 am - 11:11 pm
ONT
-
SDF
10h 47m
2 stops
American Airlines Logo
5:41 pm - 10:40 pm
SDF
-
ONT
7h 59m
1 stop
$278American Airlines
Wed, May 13 - Tue, May 19
American Airlines Logo
9:24 am - 9:41 pm
ONT
-
SDF
9h 17m
2 stops
American Airlines Logo
11:00 am - 6:24 pm
SDF
-
ONT
10h 24m
2 stops
$284American Airlines
Sat, Apr 11 - Wed, Apr 15
United Airlines Logo
5:10 am - 6:19 pm
ONT
-
PAH
11h 09m
2 stops
United Airlines Logo
5:00 am - 5:47 pm
PAH
-
ONT
14h 47m
2 stops
$440United Airlines
Sat, Apr 18 - Wed, Apr 22
United Airlines Logo
7:00 am - 6:19 pm
ONT
-
PAH
9h 19m
1 stop
United Airlines Logo
2:10 pm - 9:50 pm
PAH
-
ONT
9h 40m
1 stop
$454United Airlines
Booking Insights

KAYAK's insights & trends for Ontario to Kentucky flights

Get data-powered insights and trends into flights from Ontario to Kentucky 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 Kentucky?

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 Kentucky departing in May.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Ontario to Kentucky, 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 Kentucky is July, when tickets cost $393 (return) on average. On the other hand, the most expensive months are January and November, when the average cost of round-trip tickets is $976 and $494 respectively.

Good to know

Low seasonJanuary
Cheapest flight$80
Best time to beat the crowds but there is an average 46% increase in price.
Most popular time to fly with an average 2% increase in price.
Flight from Ontario to Cincinnati

FAQs - booking Kentucky flights

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

    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 Kentucky.

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

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

    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 Kentucky 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 Kentucky?

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

Reviews of the top 4 airlines serving from Ontario to Kentucky

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Kentucky. 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 Kentucky? 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
SouthwestOverall score based on 4333 reviews
8.6Crew
7.5Entertainment
8.1Boarding
7.0Food
8.0Comfort
Airline reviews

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

10.0 ExcellentMartie, Mar 2026
LGB - BNA
Read more Southwest reviews

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

Boarding was easy. The seats are small and fairly uncomfortable

The problem with the seat assignments is that there were a lot of rows in the front that were empty but my row at the back was full. Just not so pleasant.

Good but I prefer choose your own seat. With the new assigned seats they should board from the back I see no advantage to this new boarding. Just like every other airline

Flight boarded late after announcing on time boarding. Flight arrived only a little late despite late departure. Had trouble connecting to WiFi

The Southwest experience has definitely taken a dive from its early days. You can no longer deferentiate from other airlines. Air travel is too expensive. Southwest is no longer budget friendly. They have lost me as a loyal customer.

The charges were ridiculous for an hour flight and the turbulence was very scary.

The seats are now more narrow. I paid for front row the seats in the front are even more narrow than before.

The wifi on the plane is great. The only issue that I have is that I prefer an aisle seat and on my trips this week, I was either in the middle or window. If we can work to secure aisle seating, I will be thrilled. Nice trip.

Great flight but super high price. Glad it was a business trip and not personal

I took seat 15A in anticipation of window seat, there is no window.

Flight late, the waited for a long time for “personal” to arrive at gate to dock the plane in Rochester. So annoying. This flight was expected, why aren’t personel available for the jet bridge?

My recent experience was excellent on Delta! I flew with Delta Comfort and I was really comfortable in my seat. I enjoyed the in-flight service. The flight attendants were so friendly and hospitable. I love the snack on the flight as well. This was my first time flying on Delta and I will definitely consider flying with them again.

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.

I was in first class and literally the men behind me were so aggressively loud I moved myself to economy. This has become so common on Delta - people using audio without headphones, and men on 12am / late night flights drinking and yelling to talk to each other which prevents anyone around them from resting. Pretty crazy to have to move from first to economy (poorer service, less comfort...). Wild wild. Looking into other airlines.

Flight was delayed by 3-hours and their fix was… complimentary pretzels.

The crew, and fellow passengers, were super gracious and kind. There seemed to be plenty of bin space even though the plane was full. It’s nice to get a glass of wine with dinner in Premiere seating, and there was a lot of food.

Everything I mentioned earlier - the airbus was more comfortable indeed and the experience was further enhanced.

The plane was an older model, so it wasn’t as comfortable as others. The flight attendants were not helpful during onboarding. It was a full flight so there was chaos finding space for baggage.

Awesome! On time flight, early arrival, and a complimentary upgrade!

They delayed the flight from 9:00 to 11:55 At 11:45 they canceled the flight. I paid a premium price for the tickets with poor service

My flight was canceled a few hours before boarding. I was rebooked on Copa airlines and missed an important meeting .

OK, we were delayed and had to de plane and reboard.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

Staff were good. My seat was in need of repair, but for a short flight was not problematic. Usual basic snack and drink setup that you'll find on any US carrier. Over, a decent, basic flight.

Complimentary light meal would be appreciated. But great flight crew service on all legs

Flight delayed for more than 16 hrs and no effort was spent to provide an alternate

Women boarding passengers at the gate was absolutely rude and disrespectful of passengers. The flight attendant was absolutely delightful! Smiling and connected with the passengers. So happy. The seats are cramped and uncomfortable but I guess that’s just the way it is Communication regarding flight was excellent

it was a very short flight so my expectations were low.

Very disappointing given gate agent behavior. Filed a formal complaint with United.

The flight itself was excellent but the gate attendant made me check my carryon since she said it was an inch too big. I’ve had no problems with this carryon on recent flights on Qantas, Delta, Austrian, Southwest Airlines even though the overhead bins are the same size. there were other carryons in the bins that also looked larger than mine and there was room left in the bins for more. When I picked up my carryon from baggage claim one of the wheels had broken off.

I was in last row so that is never great bc the person in front of me leaned his seat all the way back into me.

The experience at checkin for my American Airlines flight from Sacramento to LAX was very good including the assistance I received in getting my bags checked in and boarding passes printed. Was pleasantly surprised the my bags were checked through all the way to my destination at Clark International Airport in Angeles, Philippines.

Terrible planning. And even worse gate agents. Absolutely rude behavior.

Flight was scheduled at 11:26am but they keep Delaying until midnight. They waited at airport restless.

Rough flight No beverage service due to turbulence Bottom Seat cushion was non existent

Not good. One of my luggage is missing. And until now they can’t find it

My 9:50AM flight was delayed to 3:40PM "due to incoming aircraft delay". No aircraft is "delayed" that long. Found out once we did board (after several changes in times) that the aircraft had a maintenance issue and we had to wait for another aircraft. Just tell us that. The aircraft we did get was old and the seats need to be updated. I have been traveling for several weeks with AA and you should refresh your entertainment content as frequent flyers have gone through most of your new content. I have Celiac and a shellfish allergy and continue to have struggles with meals on business and first class flights. Please keep this in mind. Sorry - was a long travel day yesterday and a bit cranky this morning with my experience comments. Still an AA fan.

Delay after delay with little communication then AA lost my luggage and at airport would not assist just said scan this QR code to track your luggage and submit a claim. However QR code provided did not work so have to go back to airport

The gate got changed several times and the flight was delayed over an hour. Awful experience

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

Information on your arrival and departure airports