What airlines fly to Ontario?

American Airlines, Spirit Airlines and Southwest are the top three most popular airlines that fly to Ontario from Kentucky according to our data. American Airlines is the first choice among our users, with 36% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 6 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

How long does it take to fly to Ontario?

Average flight duration from Kentucky to Ontario depends on which airport you fly into and out of. Flying from Louisville to Los Angeles is 4h 42m on average, while flying from Lexington to Los Angeles is 7h 03m on average. Los Angeles is the most popular airport in Ontario.

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

As of February 2026, there are 5 flights per week flying from Kentucky to Ontario. The most common day of the week flights depart is Fri, with 40% of flights taking off on this day.

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

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

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

Prices for flights from Kentucky to Ontario Airport refresh daily.

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

As of February 2026, there are 5 operators available to choose from for flights from Kentucky to Ontario Airport.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Kentucky to Ontario Airport.

What documentation or ID do you need to fly to Ontario Airport?

The necessary travel and health documents for your Ontario Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$72 Cheap Flights from Kentucky to Ontario in 2026

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Find the cheapest flights from Kentucky to Los Angeles

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

3:24 pm - 7:31 am

BNA

ONT

18h 07m

1 stop

12:59 am - 3:55 pm

ONT

BNA

12h 56m

1 stop

$179Frontier

Thu, Apr 23 - Sun, Apr 26

4:28 pm - 11:55 pm

TYS

ONT

10h 27m

1 stop

12:59 am - 3:33 pm

ONT

TYS

11h 34m

1 stop

$190Frontier

Thu, Apr 16 - Sat, Apr 18

10:00 am - 1:11 pm

TYS

ONT

30h 11m

1 stop

2:23 pm - 8:18 am

ONT

TYS

38h 55m

2 stops

$307Multiple Airlines

Wed, Mar 18 - Wed, Mar 25

5:55 pm - 10:09 pm

LEX

ONT

7h 14m

1 stop

12:00 pm - 9:21 pm

ONT

LEX

6h 21m

1 stop

$309Delta

Wed, Jul 29 - Wed, Aug 5

7:10 pm - 11:59 pm

LEX

ONT

7h 49m

1 stop

7:59 pm - 9:24 am

ONT

LEX

10h 25m

2 stops

$314American Airlines

Wed, Mar 25 - Wed, Apr 1

12:21 pm - 6:42 pm

TYS

ONT

9h 21m

1 stop

11:59 pm - 10:26 am

ONT

TYS

7h 27m

1 stop

$319American Airlines

Wed, Mar 25 - Wed, Apr 15

1:57 pm - 9:50 pm

LEX

ONT

10h 53m

2 stops

6:45 pm - 9:20 am

ONT

LEX

11h 35m

2 stops

$319United Airlines

Fri, Apr 17 - Fri, Apr 24

10:49 am - 8:36 pm

TYS

ONT

12h 47m

2 stops

7:00 am - 5:01 pm

ONT

TYS

7h 01m

1 stop

$324United Airlines

Tue, Apr 21 - Tue, Apr 28

8:00 am - 8:07 pm

TYS

ONT

39h 07m

2 stops

12:59 am - 3:33 pm

ONT

TYS

11h 34m

1 stop

$328Multiple Airlines

Sun, Apr 12 - Sat, Apr 18

3:53 pm - 9:00 pm

TRI

ONT

8h 07m

1 stop

10:25 pm - 9:52 am

ONT

TRI

8h 27m

1 stop

$334Delta

Fri, Mar 27 - Sat, Apr 4

United Airlines flights from Kentucky to Ontario

Our best United Airlines deals on Kentucky to Ontario flight tickets

United Airlines

Mar 12

BNA2:42 pmNashville Intl

9h 36m

1 stop

ONT10:18 pmOntario

Mar 17

ONT11:59 pmOntario

7h 38m

1 stop

BNA9:37 amNashville Intl

$237

United Airlines

May 30

BNA4:59 pmNashville Intl

7h 51m

1 stop

ONT10:50 pmOntario

Jun 7

ONT5:45 amOntario

6h 17m

1 stop

BNA2:02 pmNashville Intl

$266

United Airlines

Apr 5

BNA6:10 amNashville Intl

8h 10m

1 stop

ONT12:20 pmOntario

Apr 11

ONT6:49 pmOntario

9h 39m

1 stop

BNA6:28 amNashville Intl

$268

Alaska Airlines flights from Kentucky to Ontario

Our best Alaska Airlines deals on Kentucky to Ontario flight tickets

Alaska Airlines

Apr 16

CVG7:29 pmCincinnati Cinci./N. Kentucky

31h 30m

1 stop

ONT11:59 pmOntario

Apr 22

ONT6:00 amOntario

8h 58m

1 stop

CVG5:58 pmCincinnati Cinci./N. Kentucky

$274

Alaska Airlines

Mar 11

BNA7:00 amNashville Intl

10h 08m

1 stop

ONT3:08 pmOntario

Mar 17

ONT6:14 amOntario

15h 45m

1 stop

BNA11:59 pmNashville Intl

$278

Alaska Airlines

Mar 3

BNA7:00 amNashville Intl

10h 08m

1 stop

ONT3:08 pmOntario

Mar 10

ONT12:02 pmOntario

9h 57m

1 stop

BNA11:59 pmNashville Intl

$282

Fly from

Fly to

Route

Depart

Return

Price

NashvilleOntario

BNA - ONT

BNAONT

Nashville Intl

Thu 4/23

3:24 pm-7:31 am

1 stop18h 07m

Ontario

Sun 4/26

12:59 am-3:55 pm

1 stop12h 56m

$179

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Thu 4/16

4:28 pm-11:55 pm

1 stop10h 27m

Ontario

Sat 4/18

12:59 am-3:33 pm

1 stop11h 34m

$190

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Wed 3/18

10:00 am-1:11 pm

1 stop30h 11m

Ontario

Wed 3/25

2:23 pm-8:18 am

2 stops38h 55m

$307

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

Wed 7/29

5:55 pm-10:09 pm

1 stop7h 14m

Ontario

Wed 8/5

12:00 pm-9:21 pm

1 stop6h 21m

$309

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

Wed 3/25

7:10 pm-11:59 pm

1 stop7h 49m

Ontario

Wed 4/1

7:59 pm-9:24 am

2 stops10h 25m

$314

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Wed 3/25

12:21 pm-6:42 pm

1 stop9h 21m

Ontario

Wed 4/15

11:59 pm-10:26 am

1 stop7h 27m

$319

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

Fri 4/17

1:57 pm-9:50 pm

2 stops10h 53m

Ontario

Fri 4/24

6:45 pm-9:20 am

2 stops11h 35m

$319

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Tue 4/21

10:49 am-8:36 pm

2 stops12h 47m

Ontario

Tue 4/28

7:00 am-5:01 pm

1 stop7h 01m

$324

KnoxvilleOntario

TYS - ONT

TYSONT

Knoxville McGhee Tyson

Sun 4/12

8:00 am-8:07 pm

2 stops39h 07m

Ontario

Sat 4/18

12:59 am-3:33 pm

1 stop11h 34m

$328

BlountvilleOntario

TRI - ONT

TRIONT

Blountville Tri Cities TN/VA

Fri 3/27

3:53 pm-9:00 pm

1 stop8h 07m

Ontario

Sat 4/4

10:25 pm-9:52 am

1 stop8h 27m

$334

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 Kentucky to Ontario

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

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Other information

What is the cheapest month to fly to Ontario?

In general, October is the cheapest month to fly from Kentucky to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $324. If you aren’t able to travel during the month of October, then book flights to Ontario from Kentucky during September instead. Flights to Ontario in September, while not as cheap as those in October, still average around $343.

Cheap Kentucky to Ontario flight deals and tips

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

Fastest flight time	4h 05m
Direct flights	Every day
Airports in Ontario	1 airport

The fastest flight from Kentucky to Ontario takes 4h 05m

Direct flights go from Kentucky to Ontario every day.

There is 1 airport in Ontario. From Kentucky there are direct flights to Ontario (ONT).

Search flight deals

When did momondo last update prices for flights from Kentucky to Ontario Airport?
Prices for flights from Kentucky to Ontario Airport refresh daily.
How many operators does momondo search for flights from Kentucky to Ontario Airport?
As of February 2026, there are 5 operators available to choose from for flights from Kentucky to Ontario Airport.
How old do you have to be to fly from Kentucky to Ontario Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Kentucky to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The necessary travel and health documents for your Ontario Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Kentucky to Ontario

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

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $268	Free Cancellation	Rating 7.1 11,367 reviews	Search American Airlines flights
Delta	PriceFrom $288	Free Cancellation	Rating 7.9 8,245 reviews	Search Delta flights
Southwest	PriceFrom $302	Free Cancellation	Rating 8.0 4,303 reviews	Search Southwest flights
United Airlines	PriceFrom $344	Free Cancellation	Rating 7.4 9,363 reviews	Search United Airlines flights

Why use momondo?

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

Finding the right flight to Ontario from Kentucky is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Ontario quick and easy, saving you time and money.

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

Yes. momondo enables you to select and highlight flights to Ontario from Kentucky with this policy.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Kentucky to Ontario.

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

If you are not ready to book a flight from Kentucky to Ontario now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Ontario and let you know when they change.

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Cheap flights from Kentucky to Los Angeles from $72

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Kentucky to Los Angeles departing on 5/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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

How long does it take to fly to Ontario?

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

Why use momondo?

An easier way to manage your Ontario trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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Airlines are sorted and displayed according to clicks in the past 7 days on momondo

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List of cabin classes available on flights landing in Los Angeles. Availability may vary depending on flight origin and airline.

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