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Lexington

$151+ Cheap flights from Ontario to Lexington (ONT - LEX)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/2. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LEX
Apr 9 — Apr 161
Thu 4/9
Thu 4/16
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 March 10, 2026.

This Trip.com deal was found by Cheapflights users on 3/6. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/511:00 am
ONT
-
LEX
1 stop7h 31m
Multiple Airlines
Sun 4/1210:19 pm
LEX
-
ONT
1 stop12h 45m
Multiple Airlines
Deal found 3/6$317
This Kiwi.com deal was found by Cheapflights users on 3/6. 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 4/210:50 am
ONT
-
LEX
1 stop7h 36m
Multiple Airlines
Fri 4/179:45 pm
LEX
-
ONT
2 stops37h 39m
Multiple Airlines
Deal found 3/6$326
This Delta deal was found by Cheapflights users on 3/9. 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.
Fri 5/2910:00 pm
ONT
-
LEX
1 stop8h 21m
Delta
Fri 7/315:55 pm
LEX
-
ONT
1 stop7h 14m
Delta
Deal found 3/9$329
This United Airlines deal was found by Cheapflights users on 3/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/226:49 pm
ONT
-
LEX
2 stops11h 31m
United Airlines
Sat 4/255:30 am
LEX
-
ONT
2 stops10h 08m
United Airlines
Deal found 3/6$339
This United Airlines deal was found by Cheapflights users on 3/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/236:30 am
ONT
-
LEX
1 stop9h 39m
United Airlines
Sat 5/305:45 pm
LEX
-
ONT
1 stop8h 01m
United Airlines
Deal found 3/10$349
This Delta deal was found by Cheapflights users on 3/9. 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 4/2210:15 pm
ONT
-
LEX
1 stop8h 20m
Delta
Sat 4/257:40 am
LEX
-
ONT
2 stops13h 53m
Delta
Deal found 3/9$359
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
Sat 4/48:19 pm
ONT
-
LEX
1 stop22h 12m
Multiple Airlines
Sat 4/1110:52 am
LEX
-
ONT
2 stops24h 12m
Multiple Airlines
Deal found 3/9$377
This Kiwi.com deal was found by Cheapflights users on 3/6. 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 3/268:07 am
ONT
-
LEX
1 stop10h 18m
Multiple Airlines
Sun 3/2910:15 pm
LEX
-
ONT
1 stop12h 51m
Multiple Airlines
Deal found 3/6$386
This Kiwi.com deal was found by Cheapflights users on 3/6. 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.
Sun 5/1011:44 am
ONT
-
LEX
1 stop6h 45m
Multiple Airlines
Sun 7/510:05 pm
LEX
-
ONT
1 stop14h 02m
Multiple Airlines
Deal found 3/6$388

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 March 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$317
(Trip.com)

One-way from

$151
(Kiwi.com)

Popular in

November

Cheapest in

August

Average price

$487
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
One-way flight from Ontario to Lexington Blue Grass
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($20 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 10, 2026.
Use the filters below to find and compare flights from Ontario to Lexington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Fri 5/29

10:00 pm-9:21 am

1 stop8h 21m

Lexington Blue Grass

Fri 7/31

5:55 pm-10:09 pm

1 stop7h 14m

$329

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Fri 4/24

10:15 pm-9:35 am

1 stop8h 20m

Lexington Blue Grass

Tue 4/28

2:19 pm-6:33 pm

1 stop7h 14m

$329

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Tue 4/21

10:15 pm-9:35 am

1 stop8h 20m

Lexington Blue Grass

Tue 4/28

2:19 pm-6:33 pm

1 stop7h 14m

$329

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Wed 4/22

6:49 pm-9:20 am

2 stops11h 31m

Lexington Blue Grass

Sat 4/25

6:01 pm-10:31 pm

1 stop7h 30m

$334

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Sat 5/23

6:30 am-7:09 pm

1 stop9h 39m

Lexington Blue Grass

Sat 5/30

5:45 pm-10:46 pm

1 stop8h 01m

$349
Quickest round-trip

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Mon 3/16

10:25 pm-9:20 am

1 stop7h 55m

Lexington Blue Grass

Sun 3/22

7:16 am-11:47 am

1 stop7h 31m

$424

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Fri 3/13

10:25 pm-9:20 am

1 stop7h 55m

Lexington Blue Grass

Sun 3/22

7:16 am-11:47 am

1 stop7h 31m

$424

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Wed 3/18

10:25 pm-9:20 am

1 stop7h 55m

Lexington Blue Grass

Sun 3/22

7:16 am-11:47 am

1 stop7h 31m

$459

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Tue 4/7

1:34 pm-10:45 pm

1 stop6h 11m

Lexington Blue Grass

Sat 4/11

5:30 am-12:38 pm

2 stops10h 08m

$485
Cheapest one-way

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Tue 3/24

2:23 pm-8:45 am

3 stops39h 22m

$183

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/5

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

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 March.
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 $67). Flying from Ontario to Lexington in February is currently the most expensive (average of $220). 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.

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 March 10, 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
8,276 reviews

Overall

7.9

Boarding

8.1

Comfort

7.9

Entertainment

7.8

Food

7.2

Crew

8.5

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
8,276 reviews
Delta
7.9
Good
8,276 reviews

Overall

7.9

Boarding

8.1

Comfort

7.9

Entertainment

7.8

Food

7.2

Crew

8.5

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
7.1
Good
11,414 reviews
Delta
7.9
Good
8,276 reviews

Overall

7.9

Boarding

8.1

Comfort

7.9

Entertainment

7.8

Food

7.2

Crew

8.5

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 $329, Delta can have you in Lexington from Ontario in 8h 21m. 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 30% 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 $67). Flying from Ontario to Lexington in February is currently the most expensive (average of $220). 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
Danville
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 March 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$288Average$453FlexibilityNo cancel feeOn-time71%
DeltaCheapest$288Average$378FlexibilityNo cancel feeOn-timeN/A

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