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

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

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 40% 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 June 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.

$287 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 $640 to $473. The lowest price recently found on this route was $331.

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Find the cheapest flights from Lexington to Los Angeles

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One-way

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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

12:00 pm - 11:59 pm

ONT

LEX

8h 59m

1 stop

$331Delta

Tue, Aug 18 - Wed, Aug 26

4:35 pm - 10:36 pm

LEX

ONT

9h 01m

1 stop

7:15 pm - 9:11 am

ONT

LEX

10h 56m

2 stops

$336American Airlines

Wed, Jul 1 - Tue, Jul 14

6:00 am - 10:42 am

LEX

ONT

7h 42m

1 stop

12:00 pm - 11:59 pm

ONT

LEX

8h 59m

1 stop

$340Delta

Tue, Aug 18 - Thu, Aug 27

5:30 am - 12:04 pm

LEX

ONT

9h 34m

2 stops

7:15 pm - 9:11 am

ONT

LEX

10h 56m

2 stops

$342American Airlines

Wed, Jul 1 - Tue, Jul 14

8:07 pm - 11:59 pm

LEX

ONT

6h 52m

1 stop

7:15 pm - 9:11 am

ONT

LEX

10h 56m

2 stops

$345American Airlines

Wed, Jul 1 - Mon, Jul 13

5:56 pm - 9:52 pm

LEX

ONT

6h 56m

1 stop

12:00 pm - 11:59 pm

ONT

LEX

8h 59m

1 stop

$349Delta

Thu, Aug 20 - Fri, Aug 28

5:30 am - 12:04 pm

LEX

ONT

9h 34m

2 stops

7:15 pm - 9:11 am

ONT

LEX

10h 56m

2 stops

$350American Airlines

Wed, Jul 1 - Mon, Jul 13

5:41 pm - 11:06 pm

LEX

ONT

8h 25m

1 stop

8:00 pm - 10:25 am

ONT

LEX

11h 25m

2 stops

$354American Airlines

Wed, Oct 14 - Mon, Oct 19

6:00 am - 10:42 am

LEX

ONT

7h 42m

1 stop

12:00 pm - 11:59 pm

ONT

LEX

8h 59m

1 stop

$365Delta

Sat, Aug 22 - Tue, Sep 1

5:55 pm - 10:51 pm

LEX

ONT

7h 56m

1 stop

1:18 pm - 10:25 pm

ONT

LEX

6h 07m

1 stop

$370United Airlines

Wed, Jul 1 - Tue, Jul 14

American Airlines flights from Lexington to Ontario

Our best American Airlines deals on Lexington to Ontario flight tickets

American Airlines

Jul 1

LEX4:35 pmLexington Blue Grass

9h 01m

1 stop

ONT10:36 pmOntario

Jul 14

ONT7:15 pmOntario

10h 56m

2 stops

LEX9:11 amLexington Blue Grass

$336

American Airlines

Jul 1

LEX5:30 amLexington Blue Grass

9h 34m

2 stops

ONT12:04 pmOntario

Jul 14

ONT7:15 pmOntario

10h 56m

2 stops

LEX9:11 amLexington Blue Grass

$342

American Airlines

Jul 1

LEX8:07 pmLexington Blue Grass

6h 52m

1 stop

ONT11:59 pmOntario

Jul 13

ONT7:15 pmOntario

10h 56m

2 stops

LEX9:11 amLexington Blue Grass

$345

United Airlines flights from Lexington to Ontario

Our best United Airlines deals on Lexington to Ontario flight tickets

United Airlines

Jul 1

LEX5:55 pmLexington Blue Grass

7h 56m

1 stop

ONT10:51 pmOntario

Jul 14

ONT1:18 pmOntario

6h 07m

1 stop

LEX10:25 pmLexington Blue Grass

$370

United Airlines

Aug 21

LEX1:51 pmLexington Blue Grass

12h 08m

2 stops

ONT10:59 pmOntario

Aug 29

ONT1:18 pmOntario

6h 20m

1 stop

LEX10:38 pmLexington Blue Grass

$372

United Airlines

Jul 1

LEX5:55 pmLexington Blue Grass

7h 56m

1 stop

ONT10:51 pmOntario

Jul 11

ONT1:18 pmOntario

6h 07m

1 stop

LEX10:25 pmLexington Blue Grass

$395

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

Tue 8/18

6:00 am-10:42 am

1 stop7h 42m

Ontario

Wed 8/26

12:00 pm-11:59 pm

1 stop8h 59m

$331

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

Wed 7/1

4:35 pm-10:36 pm

1 stop9h 01m

Ontario

Tue 7/14

7:15 pm-9:11 am

2 stops10h 56m

$336

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

Tue 8/18

6:00 am-10:42 am

1 stop7h 42m

Ontario

Thu 8/27

12:00 pm-11:59 pm

1 stop8h 59m

$340

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

Wed 7/1

5:30 am-12:04 pm

2 stops9h 34m

Ontario

Tue 7/14

7:15 pm-9:11 am

2 stops10h 56m

$342

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

Wed 7/1

8:07 pm-11:59 pm

1 stop6h 52m

Ontario

Mon 7/13

7:15 pm-9:11 am

2 stops10h 56m

$345

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

Thu 8/20

5:56 pm-9:52 pm

1 stop6h 56m

Ontario

Fri 8/28

12:00 pm-11:59 pm

1 stop8h 59m

$349

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

Wed 7/1

5:30 am-12:04 pm

2 stops9h 34m

Ontario

Mon 7/13

7:15 pm-9:11 am

2 stops10h 56m

$350

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

Wed 10/14

5:41 pm-11:06 pm

1 stop8h 25m

Ontario

Mon 10/19

8:00 pm-10:25 am

2 stops11h 25m

$354

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

Sat 8/22

6:00 am-10:42 am

1 stop7h 42m

Ontario

Tue 9/1

12:00 pm-11:59 pm

1 stop8h 59m

$365

Quickest round-trip

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

Wed 7/1

5:55 pm-10:51 pm

1 stop7h 56m

Ontario

Tue 7/14

1:18 pm-10:25 pm

1 stop6h 07m

$370

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.

Search flight deals

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 June 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 57% of the total bookings. Other popular airlines include Delta with 43%.

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 7.1 11,644 reviews		Search American Airlines flights
Delta	PriceFrom $288	Free Cancellation	Rating 7.8 8,395 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.

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Cheap flights from Lexington to Los Angeles from $287

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 6/15. 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 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

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

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

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