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Cheap flights from Ontario to Lexington from $107

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Lexington departing on 5/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Ontario to Lexington

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:47 am - 9:29 pm
ONT
-
LEX
6h 42m
1 stop
Multiple Airlines Logo
10:19 pm - 10:14 am
LEX
-
ONT
14h 55m
1 stop
$326Multiple Airlines
Thu, Apr 16 - Sun, Apr 19
Multiple Airlines Logo
11:47 am - 9:29 pm
ONT
-
LEX
6h 42m
1 stop
Multiple Airlines Logo
10:19 pm - 10:49 am
LEX
-
ONT
15h 30m
2 stops
$328Multiple Airlines
Thu, Apr 16 - Sun, Apr 19
Delta Logo
10:15 pm - 9:35 am
ONT
-
LEX
8h 20m
1 stop
Delta Logo
5:50 pm - 11:44 pm
LEX
-
ONT
8h 54m
2 stops
$362Delta
Tue, Apr 21 - Tue, Apr 28
Delta Logo
5:05 pm - 9:35 am
ONT
-
LEX
13h 30m
2 stops
Delta Logo
5:50 pm - 11:44 pm
LEX
-
ONT
8h 54m
2 stops
$367Delta
Tue, Apr 21 - Tue, Apr 28
Delta Logo
10:00 pm - 9:21 am
ONT
-
LEX
8h 21m
1 stop
Delta Logo
5:56 pm - 9:44 pm
LEX
-
ONT
6h 48m
1 stop
$369Delta
Fri, May 29 - Fri, Jul 31
Multiple Airlines Logo
11:47 am - 9:29 pm
ONT
-
LEX
6h 42m
1 stop
Multiple Airlines Logo
10:19 pm - 8:04 am
LEX
-
ONT
12h 45m
1 stop
$372Multiple Airlines
Thu, Apr 30 - Sun, May 3
Delta Logo
5:50 pm - 10:02 am
ONT
-
LEX
13h 12m
2 stops
Delta Logo
5:56 pm - 9:44 pm
LEX
-
ONT
6h 48m
1 stop
$374Delta
Fri, May 29 - Fri, Jul 31
United Airlines Logo
6:49 pm - 9:20 am
ONT
-
LEX
11h 31m
2 stops
United Airlines Logo
5:30 am - 12:38 pm
LEX
-
ONT
10h 08m
2 stops
$379United Airlines
Wed, Apr 22 - Tue, Apr 28
Delta Logo
10:15 pm - 9:35 am
ONT
-
LEX
8h 20m
1 stop
Delta Logo
2:19 pm - 6:33 pm
LEX
-
ONT
7h 14m
1 stop
$388Delta
Tue, Apr 21 - Tue, Apr 28
Delta Logo
10:00 pm - 9:21 am
ONT
-
LEX
8h 21m
1 stop
Delta Logo
7:02 am - 10:57 am
LEX
-
ONT
6h 55m
1 stop
$394Delta
Fri, May 29 - Wed, Jun 3

United Airlines flights from Ontario to Lexington

Our best United Airlines deals on Ontario to Lexington flight tickets
United Airlines
May 20
ONT7:00 amOntario
8h 49m
1 stop
LEX6:49 pmLexington Blue Grass
May 27
LEX9:03 amLexington Blue Grass
6h 44m
1 stop
ONT12:47 pmOntario
$424
United Airlines
May 23
ONT5:45 amOntario
13h 45m
2 stops
LEX10:30 pmLexington Blue Grass
May 30
LEX5:45 pmLexington Blue Grass
8h 01m
1 stop
ONT10:46 pmOntario
$429
United Airlines
Jul 30
ONT6:30 amOntario
9h 39m
1 stop
LEX7:09 pmLexington Blue Grass
Aug 4
LEX5:55 pmLexington Blue Grass
7h 56m
1 stop
ONT10:51 pmOntario
$439

American Airlines flights from Ontario to Lexington

Our best American Airlines deals on Ontario to Lexington flight tickets
American Airlines
May 6
ONT12:19 pmOntario
8h 19m
2 stops
LEX11:38 pmLexington Blue Grass
May 18
LEX6:36 pmLexington Blue Grass
8h 10m
1 stop
ONT11:46 pmOntario
$476
American Airlines
May 6
ONT12:19 pmOntario
8h 19m
2 stops
LEX11:38 pmLexington Blue Grass
May 17
LEX6:36 pmLexington Blue Grass
8h 10m
1 stop
ONT11:46 pmOntario
$484
American Airlines
May 29
ONT6:10 amOntario
9h 08m
2 stops
LEX6:18 pmLexington Blue Grass
Jun 3
LEX11:12 amLexington Blue Grass
10h 10m
2 stops
ONT6:22 pmOntario
$489

momondo 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, momondo users made 832,500 searches. Data last updated March 25, 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

Thu 4/16

11:47 am-9:29 pm

1 stop6h 42m

Lexington Blue Grass

Sun 4/19

10:19 pm-10:14 am

1 stop14h 55m

$326

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Thu 4/16

11:47 am-9:29 pm

1 stop6h 42m

Lexington Blue Grass

Sun 4/19

10:19 pm-10:49 am

2 stops15h 30m

$328

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Tue 4/21

10:15 pm-9:35 am

1 stop8h 20m

Lexington Blue Grass

Tue 4/28

5:50 pm-11:44 pm

2 stops8h 54m

$362

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Tue 4/21

5:05 pm-9:35 am

2 stops13h 30m

Lexington Blue Grass

Tue 4/28

5:50 pm-11:44 pm

2 stops8h 54m

$367
Quickest 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

5:56 pm-9:44 pm

1 stop6h 48m

$369

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Thu 4/30

11:47 am-9:29 pm

1 stop6h 42m

Lexington Blue Grass

Sun 5/3

10:19 pm-8:04 am

1 stop12h 45m

$372

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Fri 5/29

5:50 pm-10:02 am

2 stops13h 12m

Lexington Blue Grass

Fri 7/31

5:56 pm-9:44 pm

1 stop6h 48m

$374

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Wed 4/22

6:49 pm-9:20 am

2 stops11h 31m

Lexington Blue Grass

Tue 4/28

5:30 am-12:38 pm

2 stops10h 08m

$379

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

$388

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Fri 5/29

10:00 pm-9:21 am

1 stop8h 21m

Lexington Blue Grass

Wed 6/3

7:02 am-10:57 am

1 stop6h 55m

$394

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Lexington from

How to get the cheapest flight ticket from Ontario to Lexington

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Ontario and Lexington?

Can stopping save me money on Ontario to Lexington flights?

You could potentially save up to 9% on your flight if you consider stops on a Ontario to Lexington flight.

When to book flights from Ontario to Lexington

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Lexington according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Lexington (ONT to LEX) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Lexington

Fastest flight time

6h 07m

Direct flights

None
The fastest flight from Ontario to Lexington takes 6h 07m
There are no direct flights from Ontario to Lexington. There are no popular flight routes from Ontario to Lexington.
Search flight deals

  • How far is Ontario to Lexington Blue Grass by plane?

    There are 1860.7 mi between Ontario and Lexington Blue Grass. 6h 07m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Ontario Airport to Lexington Blue Grass Airport?

    Prices for flights from Ontario Airport to Lexington Blue Grass Airport are updated daily.

  • How many operators does momondo search for flights from Ontario Airport to Lexington Blue Grass Airport?

  • How old do you have to be to fly from Ontario Airport to Lexington Blue Grass Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Ontario Airport to Lexington Blue Grass Airport.

  • What documentation or ID do you need to fly to Lexington Blue Grass Airport?

    The necessary travel and health documents for your Lexington Blue Grass Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Ontario to Lexington?

Best airlines flying from Ontario to Lexington

Compare and see reviews for airlines that fly from Ontario to Lexington with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $288Free CancellationRating
7.1
11,493 reviews
Search American Airlines flights
DeltaPriceFrom $288Free CancellationRating
7.9
8,327 reviews
Search Delta flights

Traveling to a place near Lexington?

Book flights to Lexington if you plan to visit one of these locations
Richmond
Somerset
Georgetown
Danville
Frankfort
Winchester
Berea
Versailles
Carlisle

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Lexington?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Lexington from Ontario.

Can I find flights from Ontario to Lexington with flexible booking policies on momondo?

All flight searches from Ontario to Lexington on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Ontario to Lexington?

momondo provides multiple filters to help you find the best flight to Lexington from Ontario. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Ontario to Lexington right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Ontario to Lexington flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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