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 October 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.

$376 Cheap Flights from Lexington to Ontario in 2026/27

Discover deals from 900+ travel sites with momondo.

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.

12:36 pm - 6:51 pmLEX Lexington Blue Grass-ONT Ontario

9h 15m1 stop Dallas/Fort Worth

6:26 am - 6:56 pmONT Ontario-LEX Lexington Blue Grass

9h 30m1 stop Chicago O'Hare Intl

$379American Airlines

Tue, Feb 2 - Tue, Feb 9

4:52 pm - 11:13 pmLEX Lexington Blue Grass-ONT Ontario

9h 21m1 stop Dallas/Fort Worth

10:10 pm - 8:52 amONT Ontario-LEX Lexington Blue Grass

7h 42m1 stop Charlotte Douglas

$379American Airlines

Mon, Feb 8 - Mon, Feb 22

6:00 am - 11:03 amLEX Lexington Blue Grass-ONT Ontario

8h 03m1 stop Atlanta Hartsfield-Jackson

7:05 am - 7:05 pmONT Ontario-LEX Lexington Blue Grass

9h 00m1 stop Atlanta Hartsfield-Jackson

$379Delta

Wed, Nov 18 - Thu, Nov 26

5:59 pm - 9:57 pmLEX Lexington Blue Grass-ONT Ontario

6h 58m1 stop Atlanta Hartsfield-Jackson

11:10 pm - 10:12 amONT Ontario-LEX Lexington Blue Grass

8h 02m1 stop Atlanta Hartsfield-Jackson

$379Delta

Fri, Nov 13 - Mon, Nov 16

7:05 am - 11:03 amLEX Lexington Blue Grass-ONT Ontario

6h 58m1 stop Atlanta Hartsfield-Jackson

12:18 pm - 10:49 pmONT Ontario-LEX Lexington Blue Grass

7h 31m1 stop Atlanta Hartsfield-Jackson

$379Delta

Tue, Nov 17 - Thu, Nov 26

8:59 am - 3:29 pmLEX Lexington Blue Grass-ONT Ontario

9h 30m2 stops Charlotte Douglas Phoenix Sky Harbor Intl

6:26 am - 6:56 pmONT Ontario-LEX Lexington Blue Grass

9h 30m1 stop Chicago O'Hare Intl

$384American Airlines

Tue, Feb 2 - Tue, Feb 9

4:52 pm - 11:13 pmLEX Lexington Blue Grass-ONT Ontario

9h 21m1 stop Dallas/Fort Worth

7:31 pm - 10:45 amONT Ontario-LEX Lexington Blue Grass

12h 14m2 stops Phoenix Sky Harbor Intl Chicago O'Hare Intl

$384American Airlines

Mon, Feb 8 - Mon, Feb 22

8:30 am - 12:34 pmLEX Lexington Blue Grass-ONT Ontario

7h 04m1 stop Denver Intl

1:38 pm - 10:19 pmONT Ontario-LEX Lexington Blue Grass

5h 41m1 stop Denver Intl

$499United Airlines

Wed, Dec 16 - Thu, Dec 24

8:30 am - 12:34 pmLEX Lexington Blue Grass-ONT Ontario

7h 04m1 stop Denver Intl

1:38 pm - 10:19 pmONT Ontario-LEX Lexington Blue Grass

5h 41m1 stop Denver Intl

$499United Airlines

Tue, Dec 15 - Thu, Dec 24

9:00 am - 12:33 pmLEX Lexington Blue Grass-ONT Ontario

6h 33m1 stop Denver Intl

1:29 pm - 10:36 pmONT Ontario-LEX Lexington Blue Grass

6h 07m1 stop Denver Intl

$499United Airlines

Tue, Nov 17 - Wed, Nov 25

Cheap last minute flights

Enter your travel dates to find the best prices.

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

7h 42m1 stop Chicago O'Hare Intl

1:29 pm - 10:36 pmONT Ontario-LEX Lexington Blue Grass

6h 07m1 stop Denver Intl

$605United Airlines

Sat, Oct 24 - Sat, Oct 31

9:00 am - 3:22 pmLEX Lexington Blue Grass-ONT Ontario

9h 22m2 stops Denver Intl San Francisco

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

9h 11m1 stop Chicago O'Hare Intl

$610United Airlines

Sat, Oct 24 - Sat, Oct 31

9:00 am - 12:46 pmLEX Lexington Blue Grass-ONT Ontario

6h 46m1 stop Denver Intl

1:32 pm - 10:36 pmONT Ontario-LEX Lexington Blue Grass

6h 04m1 stop Denver Intl

$694United Airlines

Fri, Oct 23 - Mon, Oct 26

5:29 am - 1:16 pmLEX Lexington Blue Grass-ONT Ontario

10h 47m2 stops Chicago O'Hare Intl Seattle/Tacoma Intl

6:02 am - 12:09 amONT Ontario-LEX Lexington Blue Grass

15h 07m2 stops Seattle/Tacoma Intl Chicago O'Hare Intl

$723Alaska Airlines

Sat, Oct 24 - Sat, Oct 31

10:11 am - 8:58 pmLEX Lexington Blue Grass-ONT Ontario

13h 47m2 stops Chicago O'Hare Intl Denver Intl

1:32 pm - 10:36 pmONT Ontario-LEX Lexington Blue Grass

6h 04m1 stop Denver Intl

$734United Airlines

Fri, Oct 23 - Mon, Oct 26

10:11 am - 8:58 pmLEX Lexington Blue Grass-ONT Ontario

13h 47m2 stops Chicago O'Hare Intl Denver Intl

9:25 am - 10:36 pmONT Ontario-LEX Lexington Blue Grass

10h 11m2 stops San Francisco Denver Intl

$739United Airlines

Fri, Oct 23 - Mon, Oct 26

9:00 am - 12:46 pmLEX Lexington Blue Grass-ONT Ontario

6h 46m1 stop Denver Intl

6:57 am - 7:10 pmONT Ontario-LEX Lexington Blue Grass

9h 13m1 stop Chicago O'Hare Intl

$760United Airlines

Fri, Oct 23 - Sun, Nov 1

9:00 am - 12:46 pmLEX Lexington Blue Grass-ONT Ontario

6h 46m1 stop Denver Intl

1:29 pm - 10:36 pmONT Ontario-LEX Lexington Blue Grass

6h 07m1 stop Denver Intl

$903United Airlines

Thu, Oct 22 - Tue, Oct 27

10:11 am - 10:49 pmLEX Lexington Blue Grass-ONT Ontario

15h 38m1 stop Chicago O'Hare Intl

1:32 pm - 10:36 pmONT Ontario-LEX Lexington Blue Grass

6h 04m1 stop Denver Intl

$909United Airlines

Fri, Oct 23 - Mon, Oct 26

9:00 am - 12:46 pmLEX Lexington Blue Grass-ONT Ontario

6h 46m1 stop Denver Intl

6:59 am - 5:40 pmONT Ontario-LEX Lexington Blue Grass

7h 41m1 stop Chicago O'Hare Intl

$947United Airlines

Thu, Oct 22 - Tue, Oct 27

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United Airlines flights from Lexington to Ontario

Our best United Airlines deals on Lexington to Ontario flight tickets

United Airlines

Nov 17

LEX9:00 amLexington Blue Grass

6h 33m

1 stop

ONT12:33 pmOntario

Nov 25

ONT1:29 pmOntario

6h 07m

1 stop

LEX10:36 pmLexington Blue Grass

$499

United Airlines

Dec 5

LEX8:04 amLexington Blue Grass

7h 30m

1 stop

ONT12:34 pmOntario

Dec 9

ONT11:20 amOntario

9h 36m

2 stops

LEX11:56 pmLexington Blue Grass

$504

United Airlines

Dec 5

LEX5:00 amLexington Blue Grass

10h 34m

2 stops

ONT12:34 pmOntario

Dec 9

ONT6:40 pmOntario

11h 50m

2 stops

LEX9:30 amLexington Blue Grass

$509

American Airlines flights from Lexington to Ontario

Our best American Airlines deals on Lexington to Ontario flight tickets

American Airlines

Feb 2

LEX8:59 amLexington Blue Grass

9h 30m

2 stops

ONT3:29 pmOntario

Feb 9

ONT6:26 amOntario

9h 30m

1 stop

LEX6:56 pmLexington Blue Grass

$384

American Airlines

Feb 2

LEX7:00 amLexington Blue Grass

11h 29m

2 stops

ONT3:29 pmOntario

Feb 9

ONT9:28 amOntario

10h 00m

2 stops

LEX10:28 pmLexington Blue Grass

$389

American Airlines

Nov 16

LEX7:54 pmLexington Blue Grass

6h 52m

1 stop

ONT11:46 pmOntario

Nov 21

ONT11:59 pmOntario

8h 50m

1 stop

LEX11:49 amLexington Blue Grass

$459

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LexingtonOntario

LEX Lexington Blue Grass - ONT Ontario

LEXONT

Lexington Blue Grass

Tue 2/2

12:36 pm-6:51 pm

1 stop9h 15m

Ontario

Tue 2/9

6:26 am-6:56 pm

1 stop9h 30m

$379

LexingtonOntario

LEX Lexington Blue Grass - ONT Ontario

LEXONT

Lexington Blue Grass

Mon 2/8

4:52 pm-11:13 pm

1 stop9h 21m

Ontario

Mon 2/22

10:10 pm-8:52 am

1 stop7h 42m

$379

LexingtonOntario

LEX Lexington Blue Grass - ONT Ontario

LEXONT

Lexington Blue Grass

Wed 11/18

6:00 am-11:03 am

1 stop8h 03m

Ontario

Thu 11/26

7:05 am-7:05 pm

1 stop9h 00m

$379

LexingtonOntario

LEX Lexington Blue Grass - ONT Ontario

LEXONT

Lexington Blue Grass

Fri 11/13

5:59 pm-9:57 pm

1 stop6h 58m

Ontario

Mon 11/16

11:10 pm-10:12 am

1 stop8h 02m

$379

LexingtonOntario

LEX Lexington Blue Grass - ONT Ontario

LEXONT

Lexington Blue Grass

Tue 11/17

7:05 am-11:03 am

1 stop6h 58m

Ontario

Thu 11/26

12:18 pm-10:49 pm

1 stop7h 31m

$379

LexingtonOntario

LEX Lexington Blue Grass - ONT Ontario

LEXONT

Lexington Blue Grass

Tue 2/2

8:59 am-3:29 pm

2 stops9h 30m

Ontario

Tue 2/9

6:26 am-6:56 pm

1 stop9h 30m

$384

LexingtonOntario

LEX Lexington Blue Grass - ONT Ontario

LEXONT

Lexington Blue Grass

Mon 2/8

4:52 pm-11:13 pm

1 stop9h 21m

Ontario

Mon 2/22

7:31 pm-10:45 am

2 stops12h 14m

$384

LexingtonOntario

LEX Lexington Blue Grass - ONT Ontario

LEXONT

Lexington Blue Grass

Wed 12/16

8:30 am-12:34 pm

1 stop7h 04m

Ontario

Thu 12/24

1:38 pm-10:19 pm

1 stop5h 41m

$499

LexingtonOntario

LEX Lexington Blue Grass - ONT Ontario

LEXONT

Lexington Blue Grass

Tue 12/15

8:30 am-12:34 pm

1 stop7h 04m

Ontario

Thu 12/24

1:38 pm-10:19 pm

1 stop5h 41m

$499

Quickest round-trip

LexingtonOntario

LEX Lexington Blue Grass - ONT Ontario

LEXONT

Lexington Blue Grass

Tue 11/17

9:00 am-12:33 pm

1 stop6h 33m

Ontario

Wed 11/25

1:29 pm-10:36 pm

1 stop6h 07m

$499

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

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

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 Southwest 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 8 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

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	$376
Fastest flight time	6h 33m
Direct flights	None

The best one-way flight to Ontario from Lexington in the past 72 hours is $376. The best round-trip flight deal from Lexington to Ontario found on momondo in the last 72 hours is $379.

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 October 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 63% of the total bookings. Other popular airlines include Delta with 37%.

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 $323	Free Cancellation	Rating 7.8 8,654 reviews		Search Delta flights
American Airlines	PriceFrom $339	Free Cancellation	Rating 7.0 12,179 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 $376

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 1/3. 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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United Airlines flights from Lexington to Ontario

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What airlines fly to Ontario?

When to book flights from Lexington to Ontario

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

Best Price Found

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

Airports servicing California

Fly your favorite airline to Los Angeles

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

Cabin classes currently available on flights to Los Angeles

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

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