$341+ 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 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — LEX
Oct 7 — Oct 141
Round-trip
1 adult, Economy
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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
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Best
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Cheapest flights from Ontario to LexingtonExplore 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 September 7, 2026.
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 September 7, 2026.
This Delta deal was found by Cheapflights users on 9/3. 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 11/1412:18 pm -
1 stop8h 40m
Wed 11/186:00 am -
1 stop8h 08m
Deal found 9/3![Delta logo]()
$341
This United Airlines deal was found by Cheapflights users on 9/3. 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 11/141:29 pm -
1 stop6h 07m
Wed 11/185:30 am -
2 stops10h 03m
Deal found 9/3![United Airlines logo]()
$346
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Tue 9/2212:37 pm -
1 stop7h 44m
Tue 10/272:25 pm -
1 stop8h 29m
Deal found 9/2![American Airlines logo]()
$385
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Tue 9/221:18 pm -
1 stop6h 20m
Tue 10/275:30 am -
2 stops10h 03m
Deal found 9/2![United Airlines logo]()
$390
This American Airlines deal was found by Cheapflights users on 9/2. 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 10/217:34 pm -
2 stops10h 13m
Thu 10/296:37 pm -
1 stop8h 15m
Deal found 9/2![American Airlines logo]()
$407
This United Airlines deal was found by Cheapflights users on 9/3. 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 11/147:00 am -
1 stop7h 40m
Thu 11/195:30 am -
2 stops10h 03m
Deal found 9/3![United Airlines logo]()
$408
This Delta deal was found by Cheapflights users on 9/5. 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 11/237:05 am -
1 stop9h 00m
Fri 12/46:00 am -
1 stop8h 08m
Deal found 9/5![Delta logo]()
$409
This Delta deal was found by Cheapflights users on 9/2. 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.
Thu 10/2212:16 pm -
1 stop8h 43m
Tue 10/277:10 am -
1 stop6h 56m
Deal found 9/2![Delta logo]()
$420
Best flights from Ontario to LexingtonDiscover carefully curated flight deals from Ontario to Lexington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 7, 2026.
Discover carefully curated flight deals from Ontario to Lexington that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 7, 2026.
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Tue 9/229:01 am -
2 stops10h 37m
Tue 10/275:30 am -
2 stops10h 03m
Deal found 9/2![United Airlines logo]()
$395
This Delta deal was found by Cheapflights users on 9/4. 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 10/911:15 pm -
1 stop7h 54m
Sat 10/177:10 am -
1 stop6h 56m
Deal found 9/4![Delta logo]()
$500
This United Airlines deal was found by Cheapflights users on 9/2. 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 2/65:00 am -
2 stops9h 17m
Tue 2/911:00 am -
2 stops13h 40m
Deal found 9/2![United Airlines logo]()
$451
This United Airlines deal was found by Cheapflights users on 9/6. 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.
Thu 12/241:38 pm -
1 stop5h 41m
Fri 1/15:50 pm -
1 stop7h 48m
Deal found 9/6![United Airlines logo]()
$479
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Fri 10/21:24 pm -
1 stop5h 45m
Mon 10/56:05 pm -
1 stop7h 44m
Deal found 9/4![United Airlines logo]()
$506
This United Airlines deal was found by Cheapflights users on 9/2. 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 9/301:24 pm -
1 stop5h 45m
Mon 10/56:05 pm -
1 stop7h 44m
Deal found 9/2![United Airlines logo]()
$608
Last-minute flights from Ontario to LexingtonDiscover last-minute flight deals from Ontario to Lexington. Data last updated September 7, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Lexington. Data last updated September 7, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/2. 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.
Tue 9/2212:37 pm -
1 stop7h 44m
Tue 10/272:25 pm -
1 stop8h 29m
Deal found 9/2![American Airlines logo]()
$385
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Tue 9/221:18 pm -
1 stop6h 20m
Tue 10/275:30 am -
2 stops10h 03m
Deal found 9/2![United Airlines logo]()
$390
This American Airlines deal was found by Cheapflights users on 9/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/511:10 pm -
1 stop7h 40m
Mon 10/126:18 pm -
1 stop8h 34m
Deal found 9/6![American Airlines logo]()
$446
This American Airlines deal was found by Cheapflights users on 9/2. 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 10/217:34 pm -
2 stops10h 13m
Thu 10/296:37 pm -
1 stop8h 15m
Deal found 9/2![American Airlines logo]()
$407
This Delta deal was found by Cheapflights users on 9/2. 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.
Thu 10/2212:16 pm -
1 stop8h 43m
Tue 10/277:10 am -
1 stop6h 56m
Deal found 9/2![Delta logo]()
$420
One-way flights from Ontario to LexingtonSearch for one-way flight options from Ontario to Lexington. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.
Search for one-way flight options from Ontario to Lexington. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.
This Delta deal was found by Cheapflights users on 9/3. 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.
Sun 10/187:07 am -
1 stop7h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Delta logo]()
$379
This American Airlines deal was found by Cheapflights users on 9/5. 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 10/511:59 pm -
1 stop8h 51m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![American Airlines logo]()
$380
This American Airlines deal was found by Cheapflights users on 9/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/17:11 pm -
2 stops12h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![American Airlines logo]()
$384
This Delta deal was found by Cheapflights users on 9/4. 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.
Sun 9/2710:00 pm -
1 stop8h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Delta logo]()
$389
This United Airlines deal was found by Cheapflights users on 9/5. 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.
Fri 10/236:32 pm -
2 stops11h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![United Airlines logo]()
$394
This United Airlines deal was found by Cheapflights users on 9/6. 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.
Thu 10/11:24 pm -
1 stop5h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![United Airlines logo]()
$421
This United Airlines deal was found by Cheapflights users on 9/4. 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 9/237:00 am -
1 stop7h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![United Airlines logo]()
$459
This Alaska Airlines deal was found by Cheapflights users on 9/3. 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.
Sun 10/186:02 am -
2 stops15h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Alaska Airlines logo]()
$514
This United Airlines deal was found by Cheapflights users on 9/6. 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.
Mon 11/301:29 pm -
1 stop6h 07m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![United Airlines logo]()
$550
This Delta deal was found by Cheapflights users on 9/3. 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 9/1410:00 pm -
1 stop8h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Delta logo]()
$563
This Alaska Airlines deal was found by Cheapflights users on 9/5. 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.
Tue 9/156:02 am -
2 stops14h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Alaska Airlines logo]()
$568
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 September 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $341 (Delta) |
Popular in | July |
Cheapest in | October |
Average price | $494 |
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 7,457,451 searches. Data last updated September 7, 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
Cheapest round-trip
OntarioLexington
ONT Ontario - LEX Lexington Blue Grass
ONTLEX
Ontario
Sun 10/18
7:07 am-5:14 pm
1 stop7h 07m
Lexington Blue Grass
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$379
OntarioLexington
ONT Ontario - LEX Lexington Blue Grass
ONTLEX
Ontario
Sat 11/14
7:00 am-5:20 pm
1 stop7h 20m
Lexington Blue Grass
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$379
OntarioLexington
ONT Ontario - LEX Lexington Blue Grass
ONTLEX
Ontario
Sat 10/24
7:00 am-5:10 pm
1 stop7h 10m
Lexington Blue Grass
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$389
OntarioLexington
ONT Ontario - LEX Lexington Blue Grass
ONTLEX
Ontario
Mon 9/28
10:00 pm-9:22 am
1 stop8h 22m
Lexington Blue Grass
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$389
Quickest round-trip
OntarioLexington
ONT Ontario - LEX Lexington Blue Grass
ONTLEX
Ontario
Fri 10/23
1:24 pm-10:09 pm
1 stop5h 45m
Lexington Blue Grass
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$389
OntarioLexington
ONT Ontario - LEX Lexington Blue Grass
ONTLEX
Ontario
Sun 9/27
10:00 pm-9:22 am
1 stop8h 22m
Lexington Blue Grass
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$389
OntarioLexington
ONT Ontario - LEX Lexington Blue Grass
ONTLEX
Ontario
Tue 9/22
9:01 am-10:38 pm
2 stops10h 37m
Lexington Blue Grass
Tue 10/27
5:30 am-12:33 pm
2 stops10h 03m
$395
OntarioLexington
ONT Ontario - LEX Lexington Blue Grass
ONTLEX
Ontario
Sat 2/6
5:00 am-5:17 pm
2 stops9h 17m
Lexington Blue Grass
Tue 2/9
11:00 am-9:40 pm
2 stops13h 40m
$451
OntarioLexington
ONT Ontario - LEX Lexington Blue Grass
ONTLEX
Ontario
Thu 9/24
1:24 pm-10:09 pm
1 stop5h 45m
Lexington Blue Grass
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$459
OntarioLexington
ONT Ontario - LEX Lexington Blue Grass
ONTLEX
Ontario
Mon 10/5
6:56 pm-10:44 am
2 stops12h 48m
Lexington Blue Grass
Wed 12/31
12:00 am-9:00 pm
Nonstop0h 00m
$464
Showing 1-10 of 16 resultsSorted by cheapest first
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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
ONT-LEX
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
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 September 7, 2026.
Get a feel of what it's like to fly with Delta,United Airlines, andAmerican 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.
Comfort
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Food
7.2
Overall
7.8
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
Comfort
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Food
7.2
Overall
7.8
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
Comfort
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Food
7.2
Overall
7.8
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
Comfort
7.8
Crew
8.5
Entertainment
7.8
Boarding
8.1
Food
7.2
Overall
7.8
Reviews
1 / 20
10.0
ExcellentMichael,Sep 2023
SMF - ATL
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.
Traveling to a place near Lexington?
Book flights to Lexington if you plan to visit one of these locationsSomerset
Richmond
Danville
Berea
Frankfort
Georgetown
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Other flights to Lexington
Explore flights to Lexington departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 7, 2026.
Ontario and Lexington flights
Browse other Ontario and Lexington flight options. Last updated on September 7, 2026.
Other flights from Ontario
Browse through other flights departing from Ontario. Flights are based on user searches made on Cheapflights and were last updated on September 7, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 3 airlines flying from Ontario to Lexington
Discover the top 3 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 7,457,451 searches. Data last updated September 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$288 | Average$489 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$317 | Average$470 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$377 | Average$494 | FlexibilityNo cancel fee | On-time71% |