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 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 September 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.

$313 Cheap Flights from Lexington to Ontario in 2026

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Find the cheapest flights from Lexington to Los Angeles

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6:00 am - 11:06 amLEX Lexington Blue Grass-ONT Ontario

8h 06m1 stop Atlanta Hartsfield-Jackson

11:08 pm - 10:09 amONT Ontario-LEX Lexington Blue Grass

8h 01m1 stop Atlanta Hartsfield-Jackson

$350Delta

Wed, Oct 14 - Mon, Oct 19

7:55 pm - 11:52 pmLEX Lexington Blue Grass-ONT Ontario

6h 57m1 stop Dallas/Fort Worth

11:59 pm - 11:50 amONT Ontario-LEX Lexington Blue Grass

8h 51m1 stop Dallas/Fort Worth

$350American Airlines

Wed, Oct 14 - Mon, Oct 19

8:08 pm - 11:36 pmLEX Lexington Blue Grass-ONT Ontario

6h 28m1 stop Dallas/Fort Worth

11:10 pm - 9:50 amONT Ontario-LEX Lexington Blue Grass

7h 40m1 stop Charlotte Douglas

$359American Airlines

Thu, Oct 1 - Mon, Oct 5

6:00 am - 11:08 amLEX Lexington Blue Grass-ONT Ontario

8h 08m1 stop Atlanta Hartsfield-Jackson

11:08 pm - 9:41 amONT Ontario-LEX Lexington Blue Grass

7h 33m1 stop Atlanta Hartsfield-Jackson

$359Delta

Thu, Dec 3 - Sun, Dec 6

3:31 pm - 10:24 pmLEX Lexington Blue Grass-ONT Ontario

9h 53m1 stop Atlanta Hartsfield-Jackson

10:00 pm - 10:09 amONT Ontario-LEX Lexington Blue Grass

9h 09m1 stop Atlanta Hartsfield-Jackson

$359Delta

Thu, Oct 1 - Mon, Oct 5

8:08 pm - 11:36 pmLEX Lexington Blue Grass-ONT Ontario

6h 28m1 stop Dallas/Fort Worth

7:11 pm - 10:57 amONT Ontario-LEX Lexington Blue Grass

12h 46m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl

$364American Airlines

Thu, Oct 1 - Sun, Oct 4

5:57 pm - 10:24 pmLEX Lexington Blue Grass-ONT Ontario

7h 27m1 stop Atlanta Hartsfield-Jackson

10:00 pm - 9:22 amONT Ontario-LEX Lexington Blue Grass

8h 22m1 stop Atlanta Hartsfield-Jackson

$379Delta

Thu, Oct 1 - Sun, Oct 4

11:00 am - 8:29 pmLEX Lexington Blue Grass-ONT Ontario

12h 29m2 stops Chicago O'Hare Intl San Francisco

6:40 pm - 9:30 amONT Ontario-LEX Lexington Blue Grass

11h 50m2 stops San Francisco Chicago O'Hare Intl

$451United Airlines

Sat, Dec 5 - Wed, Dec 9

8:45 am - 8:20 pmLEX Lexington Blue Grass-ONT Ontario

14h 35m3 stops Chicago O'Hare Intl Newark Denver Intl

5:45 am - 10:32 pmONT Ontario-LEX Lexington Blue Grass

13h 47m2 stops Houston George Bush Intcntl Chicago O'Hare Intl

$457United Airlines

Sat, Dec 5 - Wed, Dec 9

6:09 pm - 10:51 pmLEX Lexington Blue Grass-ONT Ontario

7h 42m1 stop Chicago O'Hare Intl

6:59 am - 7:10 pmONT Ontario-LEX Lexington Blue Grass

9h 11m1 stop Chicago O'Hare Intl

$461United Airlines

Sat, Oct 24 - Sat, Oct 31

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United Airlines flights from Lexington to Ontario

Our best United Airlines deals on Lexington to Ontario flight tickets

United Airlines

Dec 5

LEX11:00 amLexington Blue Grass

12h 29m

2 stops

ONT8:29 pmOntario

Dec 9

ONT6:40 pmOntario

11h 50m

2 stops

LEX9:30 amLexington Blue Grass

$451

United Airlines

Dec 5

LEX8:45 amLexington Blue Grass

14h 35m

3 stops

ONT8:20 pmOntario

Dec 9

ONT5:45 amOntario

13h 47m

2 stops

LEX10:32 pmLexington Blue Grass

$457

United Airlines

Oct 24

LEX6:09 pmLexington Blue Grass

7h 42m

1 stop

ONT10:51 pmOntario

Oct 31

ONT6:59 amOntario

9h 11m

1 stop

LEX7:10 pmLexington Blue Grass

$461

Delta flights from Lexington to Ontario

Our best Delta deals on Lexington to Ontario flight tickets

Delta

Oct 14

LEX6:00 amLexington Blue Grass

8h 06m

1 stop

ONT11:06 amOntario

Oct 19

ONT11:08 pmOntario

8h 01m

1 stop

LEX10:09 amLexington Blue Grass

$350

Delta

Oct 1

LEX3:31 pmLexington Blue Grass

9h 53m

1 stop

ONT10:24 pmOntario

Oct 5

ONT10:00 pmOntario

9h 09m

1 stop

LEX10:09 amLexington Blue Grass

$359

Delta

Oct 1

LEX5:57 pmLexington Blue Grass

7h 27m

1 stop

ONT10:24 pmOntario

Oct 4

ONT10:00 pmOntario

8h 22m

1 stop

LEX9:22 amLexington Blue Grass

$379

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LexingtonOntario

LEX Lexington Blue Grass - ONT Ontario

LEXONT

Lexington Blue Grass

Wed 10/14

6:00 am-11:06 am

1 stop8h 06m

Ontario

Mon 10/19

11:08 pm-10:09 am

1 stop8h 01m

$350

LexingtonOntario

LEX Lexington Blue Grass - ONT Ontario

LEXONT

Lexington Blue Grass

Wed 10/14

7:55 pm-11:52 pm

1 stop6h 57m

Ontario

Mon 10/19

11:59 pm-11:50 am

1 stop8h 51m

$350

Quickest round-trip

LexingtonOntario

LEX Lexington Blue Grass - ONT Ontario

LEXONT

Lexington Blue Grass

Thu 10/1

8:08 pm-11:36 pm

1 stop6h 28m

Ontario

Mon 10/5

11:10 pm-9:50 am

1 stop7h 40m

$359

LexingtonOntario

LEX Lexington Blue Grass - ONT Ontario

LEXONT

Lexington Blue Grass

Thu 12/3

6:00 am-11:08 am

1 stop8h 08m

Ontario

Sun 12/6

11:08 pm-9:41 am

1 stop7h 33m

$359

LexingtonOntario

LEX Lexington Blue Grass - ONT Ontario

LEXONT

Lexington Blue Grass

Thu 10/1

3:31 pm-10:24 pm

1 stop9h 53m

Ontario

Mon 10/5

10:00 pm-10:09 am

1 stop9h 09m

$359

LexingtonOntario

LEX Lexington Blue Grass - ONT Ontario

LEXONT

Lexington Blue Grass

Thu 10/1

8:08 pm-11:36 pm

1 stop6h 28m

Ontario

Sun 10/4

7:11 pm-10:57 am

2 stops12h 46m

$364

LexingtonOntario

LEX Lexington Blue Grass - ONT Ontario

LEXONT

Lexington Blue Grass

Thu 10/1

5:57 pm-10:24 pm

1 stop7h 27m

Ontario

Sun 10/4

10:00 pm-9:22 am

1 stop8h 22m

$379

LexingtonOntario

LEX Lexington Blue Grass - ONT Ontario

LEXONT

Lexington Blue Grass

Sat 12/5

11:00 am-8:29 pm

2 stops12h 29m

Ontario

Wed 12/9

6:40 pm-9:30 am

2 stops11h 50m

$451

LexingtonOntario

LEX Lexington Blue Grass - ONT Ontario

LEXONT

Lexington Blue Grass

Sat 12/5

8:45 am-8:20 pm

3 stops14h 35m

Ontario

Wed 12/9

5:45 am-10:32 pm

2 stops13h 47m

$457

LexingtonOntario

LEX Lexington Blue Grass - ONT Ontario

LEXONT

Lexington Blue Grass

Sat 10/24

6:09 pm-10:51 pm

1 stop7h 42m

Ontario

Sat 10/31

6:59 am-7:10 pm

1 stop9h 11m

$461

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?

Prices are currently low for flights on this route.

Typical prices usually range from $380 to $449.
The lowest price recently found on this route was $350.

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

Best Price Found	$313
Fastest flight time	6h 33m
Direct flights	None

The best one-way flight to Ontario from Lexington in the past 72 hours is $313. The best round-trip flight deal from Lexington to Ontario found on momondo in the last 72 hours is $350.

The fastest flight from Lexington to Ontario takes 6h 33m

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 33m, 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 September 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 61% of the total bookings. Other popular airlines include Delta with 39%.

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 8,573 reviews		Search Delta flights
American Airlines	PriceFrom $339	Free Cancellation	Rating 7.1 12,044 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 $313

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 11/24. 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

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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.

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