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$249+ Cheap flights from Lexington to Ontario (LEX - ONT)

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 7/11. Fares are subject to change and may not be available on all flights or dates of travel.
LEX — ONT
jun. 17 — jun. 241
mar. 6/17
mar. 6/24
1 adult, Economy
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Cheap flight deals from Lexington to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Lexington (LEX) to Ontario (ONT). 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 junio 12, 2025.

Round-trip from

$289
(Delta)

One-way from

$249
(Delta)

Popular in

December

Cheapest in

May

Average price

$409
From Lexington Blue Grass to Ontario
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One-way flight from Lexington Blue Grass to Ontario
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Highest demand for flights based on searches. 18% potential increase in price ($109 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($30 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find flight deals from Lexington to Ontario

Cheapest flights from Lexington to Ontario
Explore the most affordable flight options available from Lexington to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on junio 12, 2025.

This Delta deal was found by Cheapflights users on 6/9. 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.
jue. 7/103:46 pmLEX - ONT
1 stop6h 34mDelta
dom. 7/1310:05 pmONT - LEX
1 stop8h 15mDelta
Deal found 6/9$289
This United Airlines deal was found by Cheapflights users on 6/10. 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.
mar. 7/15:44 pmLEX - ONT
1 stop7h 27mUnited Airlines
vie. 7/47:00 amONT - LEX
1 stop7h 01mUnited Airlines
Deal found 6/10$319
This American Airlines deal was found by Cheapflights users on 6/12. 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.
jue. 9/182:55 pmLEX - ONT
1 stop9h 16mAmerican Airlines
dom. 9/217:16 pmONT - LEX
2 stops12h 23mAmerican Airlines
Deal found 6/12$345
This Alaska Airlines deal was found by Cheapflights users on 6/12. 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.
jue. 8/216:00 amLEX - ONT
2 stops11h 09mAlaska Airlines
dom. 12/146:00 pmONT - LEX
2 stops13h 42mAlaska Airlines
Deal found 6/12$627

Cheapflights Fare Finder

Customize your flight search to find flights from Lexington to Ontario 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 junio 12, 2025.
Use the filters below to find and compare flights from Lexington to Ontario that are best for you.

Fly from

Lexington

Fly to

Ontario

Route

Depart

Return

Price

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

jue. 7/10

3:46 pm-7:20 pm

1 stop6h 34m

Ontario

dom. 7/13

10:05 pm-9:20 am

1 stop8h 15m

$289

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

mar. 7/1

5:44 pm-10:11 pm

1 stop7h 27m

Ontario

vie. 7/4

7:00 am-5:01 pm

1 stop7h 01m

$319

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

jue. 9/18

2:55 pm-9:11 pm

1 stop9h 16m

Ontario

dom. 9/21

7:16 pm-10:39 am

2 stops12h 23m

$345

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

jue. 8/21

6:00 am-2:09 pm

2 stops11h 09m

Ontario

dom. 12/14

6:00 pm-10:42 am

2 stops13h 42m

$627

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

vie. 7/11

7:00 am-10:30 am

1 stop6h 30m

$249

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

vie. 8/1

5:44 pm-10:06 pm

1 stop7h 22m

$294

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

sáb. 7/12

7:40 pm-11:54 pm

1 stop7h 14m

$319

LexingtonOntario

LEX - ONT

LEXONT

Lexington Blue Grass

mar. 7/8

6:04 am-2:46 pm

2 stops11h 42m

$349

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Best time to book a flight from Lexington to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Lexington 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 Lexington to Ontario

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

Currently, August is the cheapest month in which you can book a flight from Lexington to Ontario (average of $246). Flying from Lexington to Ontario in March is currently the most expensive (average of $328). 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 LEX to ONT?

Find hourly flight availability from Lexington to Ontario. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated junio 12, 2025.

When flying from Lexington to Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 24% versus a flight in the evening.

Rainfall in Ontario by month

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

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

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

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated junio 12, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Delta and United Airlines from Lexington to Ontario to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Lexington to Ontario. 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 Lexington to Ontario round-trip?

    Delta, at $289, was found to be the cheapest airline from Lexington to Ontario.Alternate airlines to your destination round-trip include United Airlines and American Airlines. Delta is priced at 40% lower than the current average price of a flight leaving 3 months from now.

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

    For one-way options, check prices for Delta. According to our data, you can fly for as low as $249. Users have also found prices from $294 and $319 on United Airlines and American Airlines, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Lexington to Ontario 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 Lexington to Ontario?

    Currently, August is the cheapest month in which you can book a flight from Lexington to Ontario (average of $246). Flying from Lexington to Ontario in March is currently the most expensive (average of $328). 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.

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Top 2 airlines flying from Lexington to Ontario

Discover the top 2 airlines that operate flights from Lexington to Ontario. 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 junio 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$288Average$415FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$319Average$410FlexibilityNo cancel feeOn-time71%

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