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Kentucky

$61+ Cheap flights from Ontario (ONT) to Kentucky

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 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SDF
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Ontario to Kentucky

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Kentucky (USKY). 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 January 21, 2025.

Round-trip from

$138
(Gotogate)

One-way from

$61
(Frontier)
From Ontario to Kentucky
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One-way flight from Ontario to Kentucky
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Find flight deals from Ontario to Kentucky

Cheapest flights from Ontario to Kentucky
Explore the most affordable flight options available from Ontario to Kentucky. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.

This Gotogate deal was found by Cheapflights users on 1/21. 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.
Mon 2/242:43 pmONT - CVG
1 stop11h 31mFrontier
Sat 3/17:59 pmCVG - ONT
1 stop14h 27mFrontier
Deal found 1/21$138
This Booking.com deal was found by Cheapflights users on 1/21. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/112:16 pmONT - BNA
1 stop28h 29mFrontier
Tue 5/67:45 pmBNA - ONT
1 stop17h 41mFrontier
Deal found 1/21$256
This American Airlines deal was found by Cheapflights users on 1/20. 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 2/1810:05 amONT - TYS
2 stops10h 44mAmerican Airlines
Tue 2/254:16 pmTYS - ONT
1 stop7h 46mAmerican Airlines
Deal found 1/20$264
This Delta deal was found by Cheapflights users on 1/21. 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.
Wed 3/51:21 pmONT - BNA
1 stop6h 04mDelta
Wed 3/196:58 pmBNA - ONT
1 stop6h 58mDelta
Deal found 1/21$289
This Delta deal was found by Cheapflights users on 1/21. 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.
Thu 2/201:05 pmONT - LEX
1 stop7h 43mDelta
Mon 2/244:04 pmLEX - ONT
1 stop9h 48mDelta
Deal found 1/21$289
This United Airlines deal was found by Cheapflights users on 1/21. 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.
Sat 5/175:05 amONT - BNA
2 stops8h 49mUnited Airlines
Sun 5/257:34 amBNA - ONT
2 stops11h 51mUnited Airlines
Deal found 1/21$299
This Delta deal was found by Cheapflights users on 1/21. 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.
Fri 8/225:05 pmONT - TYS
2 stops13h 58mDelta
Mon 8/256:05 pmTYS - ONT
2 stops8h 38mDelta
Deal found 1/21$299
This Orbitz deal was found by Cheapflights users on 1/21. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/146:00 amONT - CVG
1 stop9h 43mMultiple Airlines
Sun 5/185:55 pmCVG - ONT
1 stop9h 05mMultiple Airlines
Deal found 1/21$309
This Delta deal was found by Cheapflights users on 1/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/155:40 amONT - CVG
1 stop10h 01mDelta
Tue 4/15:49 pmCVG - ONT
1 stop7h 54mDelta
Deal found 1/20$313
This American Airlines deal was found by Cheapflights users on 1/21. 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 2/1810:50 pmONT - TRI
1 stop8h 52mAmerican Airlines
Tue 2/254:13 pmTRI - ONT
1 stop9h 03mAmerican Airlines
Deal found 1/21$319
This Alaska Airlines deal was found by Cheapflights users on 1/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/197:00 amONT - BNA
1 stop9h 13mAlaska Airlines
Wed 2/267:14 pmBNA - ONT
1 stop30h 44mAlaska Airlines
Deal found 1/20$326
This Delta deal was found by Cheapflights users on 1/21. 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.
Wed 2/197:05 amONT - TRI
1 stop8h 23mDelta
Wed 2/265:06 pmTRI - ONT
1 stop8h 46mDelta
Deal found 1/21$333

Find flights from Ontario to Kentucky within your budget

Customize your flight search to find flights from Ontario to Kentucky 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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Mon 2/24

2:43 pm-5:14 am

1 stop11h 31m

Cincinnati Cinci./N. Kentucky

Sat 3/1

7:59 pm-7:26 am

1 stop14h 27m

$138

OntarioNashville

ONT - BNA

ONTBNA

Ontario

Thu 5/1

12:16 pm-6:45 pm

1 stop28h 29m

Nashville Intl

Tue 5/6

7:45 pm-11:26 am

1 stop17h 41m

$256

OntarioKnoxville

ONT - TYS

ONTTYS

Ontario

Tue 2/18

10:05 am-11:49 pm

2 stops10h 44m

Knoxville McGhee Tyson

Tue 2/25

4:16 pm-9:02 pm

1 stop7h 46m

$264

OntarioNashville

ONT - BNA

ONTBNA

Ontario

Wed 3/5

1:21 pm-9:25 pm

1 stop6h 04m

Nashville Intl

Wed 3/19

6:58 pm-11:56 pm

1 stop6h 58m

$289

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Thu 2/20

1:05 pm-11:48 pm

1 stop7h 43m

Lexington Blue Grass

Mon 2/24

4:04 pm-10:52 pm

1 stop9h 48m

$289

OntarioNashville

ONT - BNA

ONTBNA

Ontario

Sat 5/17

5:05 am-3:54 pm

2 stops8h 49m

Nashville Intl

Sun 5/25

7:34 am-5:25 pm

2 stops11h 51m

$299

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Wed 5/14

6:00 am-6:43 pm

1 stop9h 43m

Cincinnati Cinci./N. Kentucky

Sun 5/18

5:55 pm-12:00 am

1 stop9h 05m

$309

OntarioCincinnati

ONT - CVG

ONTCVG

Ontario

Sat 3/15

5:40 am-6:41 pm

1 stop10h 01m

Cincinnati Cinci./N. Kentucky

Tue 4/1

5:49 pm-10:43 pm

1 stop7h 54m

$313

OntarioBlountville

ONT - TRI

ONTTRI

Ontario

Tue 2/18

10:50 pm-10:42 am

1 stop8h 52m

Blountville Tri Cities TN/VA

Tue 2/25

4:13 pm-10:16 pm

1 stop9h 03m

$319

OntarioNashville

ONT - BNA

ONTBNA

Ontario

Wed 2/19

7:00 am-6:13 pm

1 stop9h 13m

Nashville Intl

Wed 2/26

7:14 pm-11:58 pm

1 stop30h 44m

$326

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/21

Showing 1-10 of 53 results
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Best time to book a flight from Ontario to Kentucky

Have a flexible travel schedule? Discover the best time to fly to Kentucky from Ontario 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 Ontario to Kentucky

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

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

Currently, January is the cheapest month in which you can book a flight from Ontario to Kentucky (average of $299). Flying from Ontario to Kentucky in April is currently the most expensive (average of $369). 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 ONT to KY?

Find hourly flight availability from Ontario to Kentucky. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 21, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Kentucky as you normally would.

Rainfall in Kentucky by month

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

In terms of precipitation, rainfall in Kentucky ranges from 3.1 - 5.3 inches per month. May is typically the wettest month, when rainfall can reach 5.3 in. September is typically the driest time to visit Kentucky when rainfall is around 3.1 in.

Temperature in Kentucky by month

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

If weather is an important factor for your trip to Kentucky, use this chart to help with planning. For those seeking warmer temperatures, July 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 January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Kentucky

Get insights into the airlines that provide service to Kentucky. 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 Kentucky. Reviews last updated January 21, 2025.
To help decide which airline to fly from Ontario to Kentucky, see what other customers have to say about Delta, United Airlines and Frontier. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Southwest
8.1
Very good
4,662 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Alaska Airlines
8.0
Very good
9,706 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

United Airlines
7.4
Good
8,985 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,662 reviews

Food

7.2

Boarding

8.2

Overall

8.1

Crew

8.7

Entertainment

7.7

Comfort

8.1

Reviews

1 / 10

My original flight was delayed so they found this flight for me so I could arrive at a reasonable time

Related info for your journey

Find useful and relevant information for your journey from Ontario to Kentucky. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Ontario to Kentucky?

    Ontario (ONT) is the airport you will fly out of if you book a flight from Ontario to Kentucky. It is only a 3.1 mi journey to Ontario (ONT) from Ontario’s city center.

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

    To fly one-way, consider booking your trip with Frontier, which is currently one of the cheapest options available, starting at $61. Alaska Airlines flights start at $139 while deals on Delta start at $145 one-way.

  • What are the most popular routes from Ontario to Kentucky?

    The most popular flight routes from Ontario to Kentucky are Ontario - Nashville Intl, Ontario - Cincinnati Cinci./N. Kentucky and Ontario - Louisville Intl.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Ontario to Kentucky 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 Ontario to Kentucky?

    Currently, January is the cheapest month in which you can book a flight from Ontario to Kentucky (average of $299). Flying from Ontario to Kentucky in April is currently the most expensive (average of $369). 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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Alternative routes for Ontario to Kentucky

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Top 4 airlines flying from Ontario to Kentucky

Discover the top 4 airlines that operate flights from Ontario to Kentucky. 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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$277Average$453FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$277Average$496FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$354Average$493FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$367Average$486FlexibilityNo cancel feeOn-time63%
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