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

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

What airlines fly to Ontario?

Delta, American Airlines and United Airlines 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 41% 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.

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 July 2026.

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.

$216 Cheap Flights from Lexington to Ontario in 2026

Q: What is the typical price of a round-trip flight between Lexington and Ontario?

Prices are currently low for flights on this route. Typical prices usually range from $376 to $502. The lowest price recently found on this route was $331.

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Lexington to Los Angeles

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:00 am - 10:42 am

LEX

ONT

7h 42m

1 stop

12:17 pm - 11:54 pm

ONT

LEX

8h 37m

1 stop

$331Delta

Sat, Sep 5 - Sat, Sep 12

7:55 pm - 11:52 pm

LEX

ONT

6h 57m

1 stop

11:59 pm - 12:00 pm

ONT

LEX

9h 01m

1 stop

$340American Airlines

Wed, Oct 14 - Mon, Oct 19

5:55 pm - 10:14 pm

LEX

ONT

7h 19m

1 stop

7:00 am - 5:10 pm

ONT

LEX

7h 10m

1 stop

$341Delta

Tue, Jan 5 - Tue, Feb 2

1:04 pm - 6:13 pm

LEX

ONT

8h 09m

1 stop

12:18 pm - 9:32 pm

ONT

LEX

6h 14m

1 stop

$349Delta

Fri, Oct 23 - Mon, Oct 26

6:00 am - 11:08 am

LEX

ONT

8h 08m

1 stop

12:18 pm - 11:59 pm

ONT

LEX

8h 41m

1 stop

$365Delta

Sat, Oct 17 - Thu, Oct 22

3:34 pm - 10:01 pm

LEX

ONT

9h 27m

1 stop

11:15 pm - 9:23 am

ONT

LEX

7h 08m

1 stop

$374Delta

Thu, Oct 15 - Sun, Oct 18

8:05 am - 6:15 pm

LEX

ONT

13h 10m

2 stops

7:55 pm - 11:27 am

ONT

LEX

12h 32m

2 stops

$385American Airlines

Fri, Aug 14 - Sun, Aug 16

8:05 am - 6:15 pm

LEX

ONT

13h 10m

2 stops

12:33 pm - 11:19 pm

ONT

LEX

7h 46m

1 stop

$388American Airlines

Sat, Aug 15 - Sat, Aug 22

3:34 pm - 10:01 pm

LEX

ONT

9h 27m

1 stop

12:18 pm - 11:59 pm

ONT

LEX

8h 41m

1 stop

$399Delta

Thu, Oct 15 - Thu, Oct 22

3:34 pm - 7:32 pm

LEX

ONT

6h 58m

1 stop

7:05 am - 7:09 pm

ONT

LEX

9h 04m

1 stop

$405Delta

Sat, Oct 17 - Sat, Oct 24

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American Airlines flights from Lexington to Ontario

Our best American Airlines deals on Lexington to Ontario flight tickets

American Airlines

Oct 14

LEX7:55 pmLexington Blue Grass

6h 57m

1 stop

ONT11:52 pmOntario

Oct 19

ONT11:59 pmOntario

9h 01m

1 stop

LEX12:00 pmLexington Blue Grass

$340

American Airlines

Aug 14

LEX8:05 amLexington Blue Grass

13h 10m

2 stops

ONT6:15 pmOntario

Aug 16

ONT7:55 pmOntario

12h 32m

2 stops

LEX11:27 amLexington Blue Grass

$385

American Airlines

Aug 15

LEX8:05 amLexington Blue Grass

13h 10m

2 stops

ONT6:15 pmOntario

Aug 22

ONT12:33 pmOntario

7h 46m

1 stop

LEX11:19 pmLexington Blue Grass

$388

United Airlines flights from Lexington to Ontario

Our best United Airlines deals on Lexington to Ontario flight tickets

United Airlines

Aug 14

LEX1:51 pmLexington Blue Grass

12h 08m

2 stops

ONT10:59 pmOntario

Aug 21

ONT1:18 pmOntario

6h 20m

1 stop

LEX10:38 pmLexington Blue Grass

$423

United Airlines

Aug 29

LEX9:15 amLexington Blue Grass

6h 35m

1 stop

ONT12:50 pmOntario

Sep 1

ONT1:18 pmOntario

6h 20m

1 stop

LEX10:38 pmLexington Blue Grass

$431

United Airlines

Aug 29

LEX9:15 amLexington Blue Grass

6h 35m

1 stop

ONT12:50 pmOntario

Sep 1

ONT9:15 amOntario

11h 40m

2 stops

LEX11:55 pmLexington Blue Grass

$436

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

Sat 9/5

6:00 am-10:42 am

1 stop7h 42m

Ontario

Sat 9/12

12:17 pm-11:54 pm

1 stop8h 37m

$331

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

Wed 10/14

7:55 pm-11:52 pm

1 stop6h 57m

Ontario

Mon 10/19

11:59 pm-12:00 pm

1 stop9h 01m

$340

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

Tue 1/5

5:55 pm-10:14 pm

1 stop7h 19m

Ontario

Tue 2/2

7:00 am-5:10 pm

1 stop7h 10m

$341

Quickest round-trip

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

Fri 10/23

1:04 pm-6:13 pm

1 stop8h 09m

Ontario

Mon 10/26

12:18 pm-9:32 pm

1 stop6h 14m

$349

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

Sat 10/17

6:00 am-11:08 am

1 stop8h 08m

Ontario

Thu 10/22

12:18 pm-11:59 pm

1 stop8h 41m

$365

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

Thu 10/15

3:34 pm-10:01 pm

1 stop9h 27m

Ontario

Sun 10/18

11:15 pm-9:23 am

1 stop7h 08m

$374

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

Fri 8/14

8:05 am-6:15 pm

2 stops13h 10m

Ontario

Sun 8/16

7:55 pm-11:27 am

2 stops12h 32m

$385

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

Sat 8/15

8:05 am-6:15 pm

2 stops13h 10m

Ontario

Sat 8/22

12:33 pm-11:19 pm

1 stop7h 46m

$388

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

Thu 10/15

3:34 pm-10:01 pm

1 stop9h 27m

Ontario

Thu 10/22

12:18 pm-11:59 pm

1 stop8h 41m

$399

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

Sat 10/17

3:34 pm-7:32 pm

1 stop6h 58m

Ontario

Sat 10/24

7:05 am-7:09 pm

1 stop9h 04m

$405

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 typical price of a round-trip flight between Lexington and Ontario?

What is the cheapest month to fly to Ontario?

In general, April 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 $0. If you aren’t able to travel during the month of April, then book flights to Ontario from Lexington during March instead. Flights to Ontario in March, while not as cheap as those in April, still average around $0.

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

Fastest flight time	6h 35m
Direct flights	None

The fastest flight from Lexington to Ontario takes 6h 35m

There are no direct flights from Lexington to Ontario. There are no popular flight routes from Lexington to Ontario.

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Frequently asked questions about flying from Lexington to Ontario

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 35m, 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 July 2026.
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 American Airlines, making up 62% of the total bookings. Other popular airlines include Delta with 38%.

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
Delta	PriceFrom $288	Free Cancellation	Rating 7.8 8,473 reviews		Search Delta flights
American Airlines	PriceFrom $339	Free Cancellation	Rating 7.1 11,832 reviews		Search American Airlines 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.

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Cheap flights from Lexington to Los Angeles from $216

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Lexington to Los Angeles departing on 9/12. 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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American Airlines flights from Lexington to Ontario

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How to get the cheapest flight ticket from Lexington to Ontario

What is the typical price of a round-trip flight between Lexington and Ontario?

What is the cheapest month to fly to Ontario?

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

What airlines fly to Ontario?

When to book flights from Lexington to Ontario

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

Fastest flight time

Direct flights

Frequently asked questions about flying from Lexington to Ontario

Best airlines flying from Lexington to Ontario

Compare and see reviews for airlines that fly from Lexington 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.

Find better results for your trip to the United States

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