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Lexington

$192+ Cheap flights from Ontario to Lexington (ONT - LEX)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/18. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LEX
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
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Find cheap flights from Ontario to Lexington with Cheapflights

1. Tell us where you want to go

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Cheap flight deals from Ontario to Lexington

Cheapest flights from Ontario to Lexington
Explore the most affordable flight options available from Ontario to Lexington. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 27, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/187:17 pm
ONT
-
LEX
1 stop23h 06m
Multiple Airlines
Sun 2/2210:08 pm
LEX
-
ONT
1 stop22h 40m
Multiple Airlines
Deal found 1/24$192
This Kiwi.com deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/117:17 pm
ONT
-
LEX
1 stop23h 06m
Multiple Airlines
Sun 2/1510:08 pm
LEX
-
ONT
1 stop18h 03m
Multiple Airlines
Deal found 1/26$231
This American Airlines deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/1611:59 pm
ONT
-
LEX
1 stop9h 10m
American Airlines
Mon 3/97:10 pm
LEX
-
ONT
1 stop7h 49m
American Airlines
Deal found 1/26$309
This Delta deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1810:20 pm
ONT
-
LEX
1 stop8h 00m
Delta
Wed 3/1110:30 am
LEX
-
ONT
2 stops13h 30m
Delta
Deal found 1/26$314
This Kiwi.com deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/711:44 am
ONT
-
LEX
1 stop6h 45m
Multiple Airlines
Sun 5/1010:19 pm
LEX
-
ONT
1 stop12h 45m
Multiple Airlines
Deal found 1/26$328
This Delta deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/910:30 pm
ONT
-
LEX
1 stop8h 12m
Delta
Sat 2/215:00 pm
LEX
-
ONT
1 stop7h 05m
Delta
Deal found 1/26$334
This American Airlines deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/127:05 pm
ONT
-
LEX
2 stops11h 23m
American Airlines
Fri 2/207:10 pm
LEX
-
ONT
1 stop7h 49m
American Airlines
Deal found 1/26$339
This Delta deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/910:30 pm
ONT
-
LEX
1 stop8h 12m
Delta
Fri 2/203:46 pm
LEX
-
ONT
1 stop8h 19m
Delta
Deal found 1/26$359
This Delta deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/1810:59 pm
ONT
-
LEX
1 stop7h 25m
Delta
Tue 7/211:30 pm
LEX
-
ONT
1 stop7h 31m
Delta
Deal found 1/25$364
This Delta deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/1610:20 pm
ONT
-
LEX
1 stop8h 00m
Delta
Mon 3/95:49 pm
LEX
-
ONT
2 stops9h 02m
Delta
Deal found 1/25$369

Find flight deals from Ontario to Lexington

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Lexington (LEX). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$192
(Kiwi.com)

Popular in

January

Cheapest in

August

Average price

$599
Provider with most accurate pricing for Ontario-Lexington Blue Grass flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Lexington Blue Grass flights.
Search Deals
From Ontario to Lexington Blue Grass
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($39 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Lexington that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 27, 2026.
Use the filters below to find and compare flights from Ontario to Lexington that are best for you.

Fly from

Ontario

Fly to

Lexington

Route

Depart

Return

Price

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Wed 3/4

10:20 pm-9:20 am

1 stop8h 00m

Lexington Blue Grass

Sat 3/7

5:00 pm-9:05 pm

1 stop7h 05m

$309

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Mon 2/16

11:59 pm-12:09 pm

1 stop9h 10m

Lexington Blue Grass

Mon 3/9

7:10 pm-11:59 pm

1 stop7h 49m

$309

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Mon 3/2

10:20 pm-9:20 am

1 stop8h 00m

Lexington Blue Grass

Sat 3/7

5:00 pm-9:05 pm

1 stop7h 05m

$309

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Tue 3/3

10:20 pm-9:20 am

1 stop8h 00m

Lexington Blue Grass

Sat 3/7

5:00 pm-9:05 pm

1 stop7h 05m

$309

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Sat 2/28

10:20 pm-9:20 am

1 stop8h 00m

Lexington Blue Grass

Sat 3/7

5:00 pm-9:05 pm

1 stop7h 05m

$309

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Wed 2/18

7:05 pm-10:51 am

2 stops12h 46m

Lexington Blue Grass

Sun 2/22

7:10 pm-11:59 pm

1 stop7h 49m

$314

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Wed 2/18

10:20 pm-9:20 am

1 stop8h 00m

Lexington Blue Grass

Wed 3/11

10:30 am-9:00 pm

2 stops13h 30m

$314

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Wed 2/11

12:41 pm-11:51 pm

1 stop8h 10m

Lexington Blue Grass

Sat 2/21

5:00 pm-9:05 pm

1 stop7h 05m

$334

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Mon 2/16

10:20 pm-9:20 am

1 stop8h 00m

Lexington Blue Grass

Mon 3/9

2:20 pm-9:00 pm

1 stop9h 40m

$334

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Mon 2/9

10:30 pm-9:42 am

1 stop8h 12m

Lexington Blue Grass

Sat 2/21

5:00 pm-9:05 pm

1 stop7h 05m

$334

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Showing 1-10 of 22 results
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Compare providers for flights from Ontario to Lexington

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Lexington in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Lexington flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Lexington flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Lexington flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Lexington flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Lexington flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Lexington

Have a flexible travel schedule? Discover the best time to fly to Lexington from Ontario with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Ontario to Lexington

What is the cheapest month to book a flight from Ontario to Lexington?

Currently, June is the cheapest month in which you can book a flight from Ontario to Lexington (average of $71). Flying from Ontario to Lexington in November is currently the most expensive (average of $185). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Ontario to Lexington?

Reviews of airlines servicing Lexington

Get insights into the airlines that provide service to Lexington. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Lexington. Reviews last updated January 27, 2026.
Get a feel of what it's like to fly with Delta and American Airlines from Ontario to Lexington by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,118 reviews

Overall

7.9

Comfort

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
Delta
7.9
Good
8,118 reviews
Delta
7.9
Good
8,118 reviews

Overall

7.9

Comfort

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin
American Airlines
7.2
Good
11,197 reviews
Delta
7.9
Good
8,118 reviews

Overall

7.9

Comfort

7.9

Crew

8.5

Food

7.2

Boarding

8.1

Entertainment

7.8

Reviews

1 / 20
10.0
Excellent

Michael,Sep 2023

SMF - ATL

Not sufficient leg room and three seats are very tigh.t on 737 in economy main cabin

Related info for your journey

Find useful and relevant information for your journey from Ontario to Lexington. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Ontario to Lexington?

    For as low as $309, Delta can have you in Lexington from Ontario in 8h. There are 1852 mi between Ontario and Lexington. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Ontario to Lexington round-trip?

    According to our current data, American Airlines ($288), and Delta ($288) offers the cheapest pricing from Ontario to Lexington. These flights start at 31% lower than the current average price 3 months from now.

  • Can I find deals for flights from Ontario to Lexington that include hotel bookings?

    Yes. In addition to deals on Ontario to Lexington flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Lexington?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Lexington.

  • Can I find deals for business class flights from Ontario to Lexington?

    Yes. Cheapflights offers flight deals from Ontario to Lexington by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Ontario to Lexington?

    Currently, June is the cheapest month in which you can book a flight from Ontario to Lexington (average of $71). Flying from Ontario to Lexington in November is currently the most expensive (average of $185). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Lexington?

Book flights to Lexington if you plan to visit one of these locations
Somerset
Berea
Georgetown
Frankfort

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Top 2 airlines flying from Ontario to Lexington

Discover the top 2 airlines that operate flights from Ontario to Lexington. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$288Average$438FlexibilityNo cancel feeOn-time71%
DeltaCheapest$288Average$374FlexibilityNo cancel feeOn-timeN/A

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