How many flights depart from Ontario to Kentucky on average per week?

5 flights are operational weekly from Ontario to Kentucky as of August 2026. The most popular departure day for this route is Mon, with 20% of flights per week taking off on this day.

What is the cheapest airline that flies from Ontario to Kentucky?

Frontier, Delta, and United Airlines are the most popular carriers operating from Ontario to Kentucky

What airlines fly to Kentucky?

American Airlines, Southwest and Delta are the top three most popular airlines that fly to Kentucky from Ontario according to our data. American Airlines is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Kentucky. Keep in mind that there are 6 different airlines that fly to Kentucky on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Ontario Airport to Kentucky?

Prices for flights from Ontario Airport to Kentucky were last updated today.

How many operators does momondo search for flights from Ontario Airport to Kentucky?

As of August 2026, there are 7 operators available to choose from for flights from Ontario Airport to Kentucky.

How old do you have to be to fly from Ontario Airport to Kentucky?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Kentucky.

What documentation or ID do you need to fly to Kentucky?

The travel and health documents required for your trip to Kentucky can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Kentucky. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$78 Cheap Flights from Ontario to Kentucky in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Kentucky

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:15 am - 2:18 pmONT Ontario-BNA Nashville Intl

6h 03m1 stop Denver Intl

3:14 pm - 11:47 pmBNA Nashville Intl-ONT Ontario

10h 33m1 stop Denver Intl

$158Frontier

Wed, Sep 30 - Tue, Oct 6

6:15 am - 2:18 pmONT Ontario-BNA Nashville Intl

6h 03m1 stop Denver Intl

3:14 pm - 11:47 pmBNA Nashville Intl-ONT Ontario

10h 33m1 stop Denver Intl

$158Frontier

Wed, Sep 23 - Wed, Sep 30

12:37 pm - 11:22 pmONT Ontario-TYS Knoxville McGhee Tyson

7h 45m1 stop Dallas/Fort Worth

6:00 am - 9:29 amTYS Knoxville McGhee Tyson-ONT Ontario

6h 29m1 stop Dallas/Fort Worth

$239American Airlines

Wed, Sep 9 - Wed, Sep 16

10:00 pm - 8:30 amONT Ontario-BNA Nashville Intl

8h 30m1 stop Atlanta Hartsfield-Jackson

5:00 pm - 11:34 pmBNA Nashville Intl-ONT Ontario

8h 34m1 stop Salt Lake City

$246Delta

Mon, Aug 24 - Wed, Aug 26

5:50 am - 8:00 pmONT Ontario-SDF Louisville Intl

11h 10m1 stop Las Vegas Harry Reid Intl

4:15 pm - 7:25 pmSDF Louisville Intl-ONT Ontario

6h 10m1 stop Las Vegas Harry Reid Intl

$247Southwest

Sat, Sep 5 - Fri, Sep 11

7:50 am - 7:45 pmONT Ontario-TYS Knoxville McGhee Tyson

8h 55m2 stops Austin Bergstrom Nashville Intl

7:10 am - 2:10 pmTYS Knoxville McGhee Tyson-ONT Ontario

10h 00m2 stops Nashville Intl Denver Intl

$250Southwest

Wed, Nov 11 - Sat, Nov 14

2:22 pm - 11:38 pmONT Ontario-BNA Nashville Intl

7h 16m1 stop Dallas/Fort Worth

4:55 pm - 10:37 pmBNA Nashville Intl-ONT Ontario

7h 42m1 stop Dallas/Fort Worth

$257American Airlines

Thu, Sep 10 - Mon, Sep 14

10:00 pm - 8:25 amONT Ontario-BNA Nashville Intl

8h 25m1 stop Atlanta Hartsfield-Jackson

5:20 am - 11:06 amBNA Nashville Intl-ONT Ontario

7h 46m1 stop Atlanta Hartsfield-Jackson

$257Delta

Thu, Oct 1 - Tue, Oct 6

1:35 pm - 10:46 pmONT Ontario-BNA Nashville Intl

7h 11m1 stop San Francisco

8:00 am - 3:33 pmBNA Nashville Intl-ONT Ontario

9h 33m1 stop San Francisco

$257United Airlines

Thu, Oct 29 - Tue, Nov 3

1:29 pm - 9:53 pmONT Ontario-BNA Nashville Intl

6h 24m1 stop Denver Intl

8:15 am - 6:01 pmBNA Nashville Intl-ONT Ontario

11h 46m2 stops Denver Intl San Francisco

$262United Airlines

Sat, Oct 31 - Tue, Nov 3

Cheap last minute flights

Enter your travel dates to find the best prices.

6:00 am - 11:40 amONT Ontario-BNA Nashville Intl

27h 40m1 stop Denver Intl

12:55 pm - 11:50 pmBNA Nashville Intl-ONT Ontario

12h 55m1 stop Denver Intl

$174Frontier

Sun, Aug 16 - Tue, Aug 18

11:47 am - 2:46 pmONT Ontario-BNA Nashville Intl

24h 59m1 stop Las Vegas Harry Reid Intl

12:55 pm - 10:04 amBNA Nashville Intl-ONT Ontario

23h 09m1 stop Denver Intl

$174Frontier

Sat, Aug 15 - Wed, Aug 19

12:33 pm - 11:27 pmONT Ontario-BNA Nashville Intl

8h 54m1 stop Dallas/Fort Worth

6:22 am - 12:03 pmBNA Nashville Intl-ONT Ontario

7h 41m1 stop Phoenix Sky Harbor Intl

$263American Airlines

Sat, Aug 15 - Wed, Aug 19

12:00 pm - 11:03 pmONT Ontario-BNA Nashville Intl

9h 03m1 stop Atlanta Hartsfield-Jackson

7:39 pm - 11:34 pmBNA Nashville Intl-ONT Ontario

5h 55m1 stop Salt Lake City

$263Delta

Fri, Aug 14 - Sun, Aug 16

10:00 pm - 8:30 amONT Ontario-BNA Nashville Intl

8h 30m1 stop Atlanta Hartsfield-Jackson

5:15 am - 11:05 amBNA Nashville Intl-ONT Ontario

7h 50m1 stop Atlanta Hartsfield-Jackson

$263Delta

Fri, Aug 14 - Wed, Sep 16

1:18 pm - 9:15 pmONT Ontario-BNA Nashville Intl

5h 57m1 stop Denver Intl

2:54 pm - 8:01 pmBNA Nashville Intl-ONT Ontario

7h 07m1 stop San Francisco

$263United Airlines

Sat, Aug 15 - Wed, Aug 19

1:18 pm - 9:15 pmONT Ontario-BNA Nashville Intl

5h 57m1 stop Denver Intl

11:18 am - 8:01 pmBNA Nashville Intl-ONT Ontario

10h 43m2 stops Chicago O'Hare Intl San Francisco

$268United Airlines

Sat, Aug 15 - Wed, Aug 19

12:33 pm - 10:39 pmONT Ontario-BNA Nashville Intl

8h 06m1 stop Dallas/Fort Worth

5:00 am - 9:29 amBNA Nashville Intl-ONT Ontario

6h 29m1 stop Dallas/Fort Worth

$342American Airlines

Fri, Aug 14 - Wed, Sep 16

2:05 pm - 11:59 pmONT Ontario-BNA Nashville Intl

7h 54m1 stop Seattle/Tacoma Intl

2:41 pm - 9:27 pmBNA Nashville Intl-ONT Ontario

8h 46m1 stop Las Vegas Harry Reid Intl

$363Multiple Airlines

Tue, Aug 18 - Mon, Aug 24

2:05 pm - 11:59 pmONT Ontario-BNA Nashville Intl

7h 54m1 stop Seattle/Tacoma Intl

12:55 pm - 11:50 pmBNA Nashville Intl-ONT Ontario

12h 55m1 stop Denver Intl

$368Multiple Airlines

Sat, Aug 15 - Wed, Aug 19

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Delta flights from Ontario to Kentucky

Our best Delta deals on Ontario to Kentucky flight tickets

Delta

Aug 24

ONT10:00 pmOntario

8h 30m

1 stop

BNA8:30 amNashville Intl

Aug 26

BNA5:00 pmNashville Intl

8h 34m

1 stop

ONT11:34 pmOntario

$246

Delta

Oct 27

ONT7:07 amOntario

7h 48m

1 stop

BNA4:55 pmNashville Intl

Oct 31

BNA12:35 pmNashville Intl

8h 55m

1 stop

ONT7:30 pmOntario

$257

Delta

Dec 18

ONT1:25 pmOntario

6h 43m

1 stop

BNA10:08 pmNashville Intl

Feb 10

BNA6:25 amNashville Intl

7h 02m

1 stop

ONT11:27 amOntario

$263

Frontier flights from Ontario to Kentucky

Our best Frontier deals on Ontario to Kentucky flight tickets

Frontier

Sep 29

ONT6:15 amOntario

6h 03m

1 stop

BNA2:18 pmNashville Intl

Oct 7

BNA3:14 pmNashville Intl

10h 33m

1 stop

ONT11:47 pmOntario

$158

Frontier

Sep 23

ONT6:15 amOntario

6h 03m

1 stop

BNA2:18 pmNashville Intl

Sep 26

BNA3:14 pmNashville Intl

10h 33m

1 stop

ONT11:47 pmOntario

$159

Frontier

Sep 21

ONT6:15 amOntario

11h 40m

1 stop

BNA7:55 pmNashville Intl

Oct 1

BNA3:14 pmNashville Intl

10h 33m

1 stop

ONT11:47 pmOntario

$160

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioNashville

ONT Ontario - BNA Nashville Intl

ONTBNA

Ontario

Wed 9/30

6:15 am-2:18 pm

1 stop6h 03m

Nashville Intl

Tue 10/6

3:14 pm-11:47 pm

1 stop10h 33m

$158

OntarioNashville

ONT Ontario - BNA Nashville Intl

ONTBNA

Ontario

Wed 9/23

6:15 am-2:18 pm

1 stop6h 03m

Nashville Intl

Wed 9/30

3:14 pm-11:47 pm

1 stop10h 33m

$158

Quickest round-trip

OntarioKnoxville

ONT Ontario - TYS Knoxville McGhee Tyson

ONTTYS

Ontario

Wed 9/9

12:37 pm-11:22 pm

1 stop7h 45m

Knoxville McGhee Tyson

Wed 9/16

6:00 am-9:29 am

1 stop6h 29m

$239

OntarioNashville

ONT Ontario - BNA Nashville Intl

ONTBNA

Ontario

Mon 8/24

10:00 pm-8:30 am

1 stop8h 30m

Nashville Intl

Wed 8/26

5:00 pm-11:34 pm

1 stop8h 34m

$246

OntarioLouisville

ONT Ontario - SDF Louisville Intl

ONTSDF

Ontario

Sat 9/5

5:50 am-8:00 pm

1 stop11h 10m

Louisville Intl

Fri 9/11

4:15 pm-7:25 pm

1 stop6h 10m

$247

OntarioKnoxville

ONT Ontario - TYS Knoxville McGhee Tyson

ONTTYS

Ontario

Wed 11/11

7:50 am-7:45 pm

2 stops8h 55m

Knoxville McGhee Tyson

Sat 11/14

7:10 am-2:10 pm

2 stops10h 00m

$250

OntarioNashville

ONT Ontario - BNA Nashville Intl

ONTBNA

Ontario

Thu 9/10

2:22 pm-11:38 pm

1 stop7h 16m

Nashville Intl

Mon 9/14

4:55 pm-10:37 pm

1 stop7h 42m

$257

OntarioNashville

ONT Ontario - BNA Nashville Intl

ONTBNA

Ontario

Thu 10/1

10:00 pm-8:25 am

1 stop8h 25m

Nashville Intl

Tue 10/6

5:20 am-11:06 am

1 stop7h 46m

$257

OntarioNashville

ONT Ontario - BNA Nashville Intl

ONTBNA

Ontario

Thu 10/29

1:35 pm-10:46 pm

1 stop7h 11m

Nashville Intl

Tue 11/3

8:00 am-3:33 pm

1 stop9h 33m

$257

OntarioNashville

ONT Ontario - BNA Nashville Intl

ONTBNA

Ontario

Sat 10/31

1:29 pm-9:53 pm

1 stop6h 24m

Nashville Intl

Tue 11/3

8:15 am-6:01 pm

2 stops11h 46m

$262

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Ontario to Kentucky

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Kentucky?

If you’re not able to fly to Kentucky in October, then August is your next best option. Flight prices from Ontario to Kentucky during August average around $441.

Cheap Ontario to Kentucky flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Kentucky

Fastest flight time	3h 40m
Direct flights	Every day
Airports in Kentucky	43 airports

The fastest flight from Ontario to Kentucky takes 3h 40m

Direct flights go from Ontario to Kentucky every day.

There are 43 airports in Kentucky. From Ontario there are direct flights to Nashville Intl (BNA).

Search flight deals

Frequently asked questions about flying from Ontario to Kentucky

When did momondo last update prices for flights from Ontario Airport to Kentucky?
Prices for flights from Ontario Airport to Kentucky were last updated today.
How many operators does momondo search for flights from Ontario Airport to Kentucky?
As of August 2026, there are 7 operators available to choose from for flights from Ontario Airport to Kentucky.
How old do you have to be to fly from Ontario Airport to Kentucky?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Kentucky.
What documentation or ID do you need to fly to Kentucky?
The travel and health documents required for your trip to Kentucky can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Kentucky. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Ontario to Kentucky

Compare and see reviews for airlines that fly from Ontario to Kentucky with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $288	Free Cancellation	Rating 7.8 8,502 reviews	Search Delta flights
American Airlines	PriceFrom $289	Free Cancellation	Rating 7.1 11,923 reviews	Search American Airlines flights
United Airlines	PriceFrom $308	Free Cancellation	Rating 7.4 10,112 reviews	Search United Airlines flights
Southwest	PriceFrom $356	Free Cancellation	Rating 8.0 4,219 reviews	Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Kentucky?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Ontario to Kentucky for you.

Can I find flights from Ontario to Kentucky with flexible booking policies on momondo?

Flights from Ontario to Kentucky with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Ontario to Kentucky?

Once all potential Ontario to Kentucky flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Ontario to Kentucky right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Kentucky from Ontario. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.