What airlines fly to Ontario?

Delta, American Airlines and Frontier are the top three most popular airlines that fly to Ontario from Lexington according to our data. Delta is the first choice among our users, with 39% of people opting to fly with this airline when traveling to Ontario. Keep in mind that there are 7 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Lexington Blue Grass to Ontario?

American Airlines, Delta, and Alaska Airlines are the most popular carriers operating from Lexington Blue Grass to Ontario

When did momondo last update prices for flights from Lexington Blue Grass Airport to Ontario Airport?

Prices for flights from Lexington Blue Grass Airport to Ontario Airport refresh daily.

How many operators does momondo search for flights from Lexington Blue Grass Airport to Ontario Airport?

There are 2 operators available for flights from Lexington Blue Grass Airport to Ontario Airport as of August 2025.

How old do you have to be to fly from Lexington Blue Grass Airport to Ontario Airport?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lexington Blue Grass Airport to Ontario Airport.

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

The travel and health documents required for your trip to Ontario Airport 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 Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$238 Cheap Flights from Lexington to Ontario in 2025

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Find the cheapest flights from Lexington to Los Angeles

Round-trip

One-way

Last minute

Cheap round-trip flights

6:15 pm - 10:23 pmLEX-ONT

7h 08m1 stop

7:05 am - 5:12 pmONT-LEX

7h 07m1 stop

$289Delta

Find Deal

mar., sep. 23 - sáb., nov. 8

3:42 pm - 10:23 pmLEX-ONT

9h 41m1 stop

10:00 pm - 9:44 amONT-LEX

8h 44m2 stops

$294Delta

Find Deal

mié., sep. 17 - mar., sep. 23

6:00 am - 11:56 amLEX-ONT

8h 56m2 stops

6:10 am - 8:46 pmONT-LEX

11h 36m2 stops

$299American Airlines

Find Deal

mié., sep. 17 - mar., sep. 23

6:00 am - 10:35 amLEX-ONT

7h 35m1 stop

11:45 am - 11:50 pmONT-LEX

9h 05m1 stop

$308Delta

Find Deal

mié., ago. 27 - dom., ago. 31

10:24 am - 7:11 pmLEX-ONT

11h 47m2 stops

11:45 am - 11:50 pmONT-LEX

9h 05m1 stop

$313Delta

Find Deal

mié., ago. 27 - dom., ago. 31

7:00 am - 12:32 pmLEX-ONT

8h 32m2 stops

6:04 am - 11:37 pmONT-LEX

14h 33m2 stops

$349United Airlines

Find Deal

mié., ago. 27 - dom., ago. 31

11:07 am - 5:29 pmLEX-ONT

9h 22m2 stops

1:15 pm - 10:16 pmONT-LEX

6h 01m1 stop

$368United Airlines

Find Deal

jue., ago. 28 - vie., sep. 5

5:29 am - 11:57 amLEX-ONT

9h 28m1 stop

12:46 pm - 9:54 pmONT-LEX

6h 08m1 stop

$378American Airlines

Find Deal

mar., oct. 21 - jue., nov. 13

6:00 am - 10:03 amLEX-ONT

7h 03m1 stop

12:53 pm - 9:54 pmONT-LEX

6h 01m1 stop

$379American Airlines

Find Deal

mar., sep. 23 - jue., nov. 13

5:48 pm - 10:30 pmLEX-ONT

7h 42m1 stop

7:00 am - 5:07 pmONT-LEX

7h 07m1 stop

$429United Airlines

Find Deal

jue., ago. 28 - lun., sep. 1

United Airlines flights from Lexington to Ontario

Our best United Airlines deals on Lexington to Ontario flight tickets

United Airlines

Aug 28

LEX5:48 pmLexington Blue Grass

7h 42m

1 stop

ONT10:30 pmOntario

Sep 5

ONT1:15 pmOntario

6h 01m

1 stop

LEX10:16 pmLexington Blue Grass

$314

Find similar

United Airlines

Aug 27

LEX7:00 amLexington Blue Grass

8h 32m

2 stops

ONT12:32 pmOntario

Aug 31

ONT6:04 amOntario

14h 33m

2 stops

LEX11:37 pmLexington Blue Grass

$349

Find similar

United Airlines

Aug 28

LEX11:07 amLexington Blue Grass

9h 22m

2 stops

ONT5:29 pmOntario

Sep 5

ONT1:15 pmOntario

6h 01m

1 stop

LEX10:16 pmLexington Blue Grass

$368

Find similar

American Airlines flights from Lexington to Ontario

Our best American Airlines deals on Lexington to Ontario flight tickets

American Airlines

Sep 17

LEX6:00 amLexington Blue Grass

8h 56m

2 stops

ONT11:56 amOntario

Sep 23

ONT6:10 amOntario

11h 36m

2 stops

LEX8:46 pmLexington Blue Grass

$299

Find similar

American Airlines

Oct 21

LEX5:29 amLexington Blue Grass

9h 28m

1 stop

ONT11:57 amOntario

Nov 13

ONT12:46 pmOntario

6h 08m

1 stop

LEX9:54 pmLexington Blue Grass

$378

Find similar

American Airlines

Sep 23

LEX6:00 amLexington Blue Grass

7h 03m

1 stop

ONT10:03 amOntario

Nov 13

ONT12:53 pmOntario

6h 01m

1 stop

LEX9:54 pmLexington Blue Grass

$379

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

mar. 9/23

6:15 pm-10:23 pm

1 stop7h 08m

Ontario

sáb. 11/8

7:05 am-5:12 pm

1 stop7h 07m

$289

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

mié. 9/17

3:42 pm-10:23 pm

1 stop9h 41m

Ontario

mar. 9/23

10:00 pm-9:44 am

2 stops8h 44m

$294

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

mié. 9/17

6:00 am-11:56 am

2 stops8h 56m

Ontario

mar. 9/23

6:10 am-8:46 pm

2 stops11h 36m

$299

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

mié. 8/27

6:00 am-10:35 am

1 stop7h 35m

Ontario

dom. 8/31

11:45 am-11:50 pm

1 stop9h 05m

$308

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

mié. 8/27

10:24 am-7:11 pm

2 stops11h 47m

Ontario

dom. 8/31

11:45 am-11:50 pm

1 stop9h 05m

$313

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

mié. 8/27

7:00 am-12:32 pm

2 stops8h 32m

Ontario

dom. 8/31

6:04 am-11:37 pm

2 stops14h 33m

$349

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

jue. 8/28

11:07 am-5:29 pm

2 stops9h 22m

Ontario

vie. 9/5

1:15 pm-10:16 pm

1 stop6h 01m

$368

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

mar. 10/21

5:29 am-11:57 am

1 stop9h 28m

Ontario

jue. 11/13

12:46 pm-9:54 pm

1 stop6h 08m

$378

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

mar. 9/23

6:00 am-10:03 am

1 stop7h 03m

Ontario

jue. 11/13

12:53 pm-9:54 pm

1 stop6h 01m

$379

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

jue. 8/28

5:48 pm-10:30 pm

1 stop7h 42m

Ontario

lun. 9/1

7:00 am-5:07 pm

1 stop7h 07m

$429

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 Lexington 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

Airlines

What is the cheapest month to fly to Ontario?

In general, May is the cheapest month to fly from Lexington to Ontario. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $368. If you aren’t able to travel during the month of May, then book flights to Ontario from Lexington during July instead. Flights to Ontario in July, while not as cheap as those in May, still average around $373.

What is the cheapest day to depart on your flight to Ontario?

The cheapest day to depart on your flight to Ontario is on a Saturday when prices can be found for as low as $347. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Lexington to Ontario for around $779.

What is the cheapest time of day to depart on your flight to Ontario?

In the morning is the cheapest time of day to fly from Lexington to Ontario when you can find flight prices for as low as $387. Flying to Ontario in the morning is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the evening when prices are $509 on average. Flights to Ontario from Lexington in the evening are generally more expensive because this time of day is more convenient for travelers’ schedules.

When to book flights from Lexington to Ontario

Are you open to changing your travel dates? Check out the ideal times to fly from Lexington to Ontario according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Lexington to Ontario (LEX to ONT) flight deals and tips

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

Best Price Found	$238
Fastest flight time	6h 12m
Direct flights	None
Airports in Ontario	1 airport

The best one-way flight to Ontario from Lexington in the past 72 hours is $238. The best round-trip flight deal from Lexington to Ontario found on momondo in the last 72 hours is $289.

The fastest flight from Lexington to Ontario takes 6h 12m

There are no direct flights from Lexington to Ontario. Popular non-direct route for this connection is Lexington Blue Grass Airport - Ontario Airport.

There is 1 airport near Ontario: Ontario (ONT)

Search flight deals

How far is Lexington Blue Grass to Ontario by plane?
The straight-line distance from Lexington Blue Grass to Ontario is 1860.7 mi. Flights usually cover this in 6h 34m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Lexington Blue Grass Airport to Ontario Airport?
Prices for flights from Lexington Blue Grass Airport to Ontario Airport refresh daily.
How many operators does momondo search for flights from Lexington Blue Grass Airport to Ontario Airport?
There are 2 operators available for flights from Lexington Blue Grass Airport to Ontario Airport as of August 2025.
How old do you have to be to fly from Lexington Blue Grass Airport to Ontario Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Lexington Blue Grass Airport to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The travel and health documents required for your trip to Ontario Airport 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 Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Lexington to Ontario?
Based on momondo bookings for flights between Lexington and Ontario, the leading airline is Delta, making up 58% of the total bookings. Other popular airlines include American Airlines with 42%.

Best airlines flying from Lexington to Ontario

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

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $288	Free Cancellation	Rating 7.2 10,000 reviews		Search American Airlines flights
Delta	PriceFrom $288	Free Cancellation	Rating 8.0 7,980 reviews		Search Delta flights

Why use momondo?

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

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 Lexington to Ontario for you.

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

Yes. momondo allows you to filter the results for Lexington to Ontario flights to just show those with flexible booking policies.

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

Once all potential Lexington to Ontario 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 Lexington to Ontario right now. Can momondo alert me if prices change?

Price alerts on flights to Ontario from Lexington are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.