HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Lexington

$289+ 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 4/18. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LEX
Mar 26 — Apr 21
Wed 3/26
Wed 4/2
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Lexington with Cheapflights

1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”
2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.
3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap 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 21, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$289
(Delta)

Popular in

December

Cheapest in

February

Average price

$498
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
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2025
Search Deals

Find 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 21, 2025.

This Delta deal was found by Cheapflights users on 3/20. 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 4/1810:15 pmONT - LEX
1 stop8h 15mDelta
Tue 4/225:56 pmLEX - ONT
1 stop7h 40mDelta
Deal found 3/20$289
This American Airlines deal was found by Cheapflights users on 3/20. 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.
Wed 7/92:40 pmONT - LEX
1 stop7h 05mAmerican Airlines
Tue 7/155:50 amLEX - ONT
1 stop7h 13mAmerican Airlines
Deal found 3/20$339
This United Airlines deal was found by Cheapflights users on 3/20. 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.
Thu 8/77:00 amONT - LEX
1 stop6h 55mUnited Airlines
Mon 8/115:50 pmLEX - ONT
1 stop7h 36mUnited Airlines
Deal found 3/20$429
This Alaska Airlines deal was found by Cheapflights users on 3/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/86:24 pmONT - LEX
2 stops13h 06mAlaska Airlines
Wed 5/146:40 amLEX - ONT
2 stops11h 52mAlaska Airlines
Deal found 3/20$580

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 21, 2025.
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

Fri 4/18

10:15 pm-9:30 am

1 stop8h 15m

Lexington Blue Grass

Tue 4/22

5:56 pm-10:36 pm

1 stop7h 40m

$289

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Wed 7/9

2:40 pm-12:45 am

1 stop7h 05m

Lexington Blue Grass

Tue 7/15

5:50 am-10:03 am

1 stop7h 13m

$339

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Thu 8/7

7:00 am-4:55 pm

1 stop6h 55m

Lexington Blue Grass

Mon 8/11

5:50 pm-10:26 pm

1 stop7h 36m

$429

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Thu 5/8

6:24 pm-10:30 am

2 stops13h 06m

Lexington Blue Grass

Wed 5/14

6:40 am-3:32 pm

2 stops11h 52m

$580

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Wed 4/23

6:00 am-10:11 pm

2 stops13h 11m

$296

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Tue 4/8

12:42 pm-11:54 pm

1 stop8h 12m

$299

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Tue 4/8

7:25 pm-10:36 am

2 stops12h 11m

$304

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Fri 7/11

6:39 pm-1:13 pm

2 stops15h 34m

$317

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/20

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
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 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, August is the cheapest month in which you can book a flight from Ontario to Lexington (average of $303). Flying from Ontario to Lexington in May is currently the most expensive (average of $398). 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.

What is the cheapest time of day to fly from ONT to LEX?

Find hourly flight availability from Ontario to Lexington. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 21, 2025.

It’s typically best to fly out from Ontario to Lexington in the afternoon. Doing so could potentially save you 19% on the flight price compared to flying in the morning, which is usually more expensive.

Rainfall in Lexington by month

Plan your trip to Lexington by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Lexington ranges from 2.9 - 5.3 inches per month. May is typically the wettest month, when rainfall can reach 5.3 in. September is typically the driest time to visit Lexington when rainfall is around 2.9 in.

Temperature in Lexington by month

Plan your trip to Lexington by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Lexington, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 77.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

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 21, 2025.
Alaska Airlines
8.0
Very good
9,759 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.1

Comfort

7.9

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very good
9,759 reviews
Alaska Airlines
8.0
Very good
9,759 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.1

Comfort

7.9

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very good
7,895 reviews
Alaska Airlines
8.0
Very good
9,759 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.1

Comfort

7.9

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,605 reviews
Alaska Airlines
8.0
Very good
9,759 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.1

Comfort

7.9

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,759 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.1

Comfort

7.9

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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.

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

    According to our current data, Delta ($289), American Airlines ($339), and United Airlines ($429) offers the cheapest pricing from Ontario to Lexington. These flights start at 34% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Ontario to Lexington one-way?

    $296 is the cheapest one-way deal found within the past few days, from Alaska Airlines. You may also be able to find cheap deals on Delta and American Airlines, with prices starting from $299 and $304, respectively.

  • 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, August is the cheapest month in which you can book a flight from Ontario to Lexington (average of $303). Flying from Ontario to Lexington in May is currently the most expensive (average of $398). 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 Ontario?

Book flights to Ontario if you plan to visit one of these locations
Georgetown
Berea
Danville
Richmond

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Lexington

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Nashville flights
San Francisco to Nashville flights
Ontario to Nashville flights
Burbank to Nashville flights
Sacramento to Nashville flights
San Diego to Nashville flights
Santa Ana to Nashville flights
Los Angeles to Cincinnati flights
San Jose to Nashville flights
Long Beach to Nashville flights
Oakland to Nashville flights
Los Angeles to Louisville flights
San Francisco to Cincinnati flights
Las Vegas to Nashville flights
Ontario to Cincinnati flights
San Francisco to Louisville flights
Fresno to Nashville flights
Ontario to Louisville flights
Los Angeles to Knoxville flights
San Francisco to Lexington flights
Santa Ana to Cincinnati flights
San Francisco to Knoxville flights
Los Angeles to Lexington flights
San Jose to Cincinnati flights
San Diego to Louisville flights
Las Vegas to Louisville flights
San Diego to Cincinnati flights
San Diego to Knoxville flights
San Jose to Louisville flights
San Jose to Knoxville flights
Sacramento to Knoxville flights
Oakland to Cincinnati flights
Sacramento to Louisville flights
Ontario to Knoxville flights
Reno to Nashville flights
Long Beach to Cincinnati flights
Monterey to Nashville flights
San Diego to Lexington flights
Sacramento to Cincinnati flights
Palm Springs to Nashville flights
Santa Barbara to Nashville flights
Burbank to Cincinnati flights
Oakland to Knoxville flights
Santa Ana to Lexington flights
San Jose to Lexington flights
Santa Ana to Knoxville flights
Burbank to Louisville flights
Las Vegas to Cincinnati flights
Oakland to Louisville flights

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 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$248Average$484FlexibilityNo cancel feeOn-time71%
DeltaCheapest$277Average$369FlexibilityNo cancel feeOn-timeN/A
100% Free
Cheapflights is completely free to use, so you can start saving the moment you arrive.
Book with Flexibility
Our users can plan ahead with confidence and find flights with no change fees
Travel Smart
Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.