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Cheap flights from Ontario to Lexington from $168

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 6/24. 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
3:34 pm - 9:07 pm
ONT
-
LEX
26h 33m
1 stop
Multiple Airlines Logo
10:05 pm - 3:07 pm
LEX
-
ONT
20h 02m
1 stop
$320Multiple Airlines
Wed, Jun 17 - Thu, Jul 23
Multiple Airlines Logo
3:34 pm - 9:07 pm
ONT
-
LEX
26h 33m
1 stop
Multiple Airlines Logo
10:05 pm - 10:57 am
LEX
-
ONT
39h 52m
2 stops
$366Multiple Airlines
Wed, Jun 17 - Thu, Jul 23
Delta Logo
10:00 pm - 9:24 am
ONT
-
LEX
8h 24m
1 stop
Delta Logo
6:00 am - 10:42 am
LEX
-
ONT
7h 42m
1 stop
$394Delta
Thu, Aug 6 - Fri, Aug 14
Delta Logo
10:00 pm - 9:24 am
ONT
-
LEX
8h 24m
1 stop
Delta Logo
6:00 am - 10:42 am
LEX
-
ONT
7h 42m
1 stop
$414Delta
Fri, Aug 7 - Thu, Aug 13
Delta Logo
10:00 pm - 9:25 am
ONT
-
LEX
8h 25m
1 stop
Delta Logo
5:56 pm - 9:48 pm
LEX
-
ONT
6h 52m
1 stop
$419Delta
Fri, Jun 19 - Fri, Jun 26
American Airlines Logo
6:10 am - 7:37 pm
ONT
-
LEX
10h 27m
2 stops
American Airlines Logo
8:07 pm - 11:59 pm
LEX
-
ONT
6h 52m
1 stop
$424American Airlines
Sat, May 30 - Wed, Jun 3
American Airlines Logo
6:10 am - 7:37 pm
ONT
-
LEX
10h 27m
2 stops
American Airlines Logo
5:19 am - 12:05 pm
LEX
-
ONT
9h 46m
2 stops
$429American Airlines
Sat, May 30 - Wed, Jun 3
United Airlines Logo
1:18 pm - 10:38 pm
ONT
-
LEX
6h 20m
1 stop
United Airlines Logo
9:15 am - 12:50 pm
LEX
-
ONT
6h 35m
1 stop
$431United Airlines
Sat, Aug 29 - Tue, Sep 1
United Airlines Logo
1:18 pm - 10:38 pm
ONT
-
LEX
6h 20m
1 stop
United Airlines Logo
7:00 am - 6:11 pm
LEX
-
ONT
14h 11m
2 stops
$436United Airlines
Sat, Aug 29 - Tue, Sep 1
Delta Logo
10:00 pm - 9:16 am
ONT
-
LEX
8h 16m
1 stop
Delta Logo
5:56 pm - 9:50 pm
LEX
-
ONT
6h 54m
1 stop
$444Delta
Fri, Jul 10 - Sun, Jul 12

American Airlines flights from Ontario to Lexington

Our best American Airlines deals on Ontario to Lexington flight tickets
American Airlines
May 30
ONT6:10 amOntario
10h 27m
2 stops
LEX7:37 pmLexington Blue Grass
Jun 3
LEX8:07 pmLexington Blue Grass
6h 52m
1 stop
ONT11:59 pmOntario
$424
American Airlines
May 30
ONT6:10 amOntario
10h 27m
2 stops
LEX7:37 pmLexington Blue Grass
Jun 3
LEX5:19 amLexington Blue Grass
9h 46m
2 stops
ONT12:05 pmOntario
$429
American Airlines
Aug 6
ONT8:01 pmOntario
12h 14m
2 stops
LEX11:15 amLexington Blue Grass
Aug 14
LEX5:44 pmLexington Blue Grass
8h 14m
1 stop
ONT10:58 pmOntario
$449

Delta flights from Ontario to Lexington

Our best Delta deals on Ontario to Lexington flight tickets
Delta
Aug 6
ONT10:00 pmOntario
8h 24m
1 stop
LEX9:24 amLexington Blue Grass
Aug 14
LEX6:00 amLexington Blue Grass
7h 42m
1 stop
ONT10:42 amOntario
$394
Delta
Aug 7
ONT10:00 pmOntario
8h 24m
1 stop
LEX9:24 amLexington Blue Grass
Aug 13
LEX6:00 amLexington Blue Grass
7h 42m
1 stop
ONT10:42 amOntario
$414
Delta
Jun 19
ONT10:00 pmOntario
8h 25m
1 stop
LEX9:25 amLexington Blue Grass
Jun 26
LEX5:56 pmLexington Blue Grass
6h 52m
1 stop
ONT9:48 pmOntario
$419

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 May 20, 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

Wed 6/17

3:34 pm-9:07 pm

1 stop26h 33m

Lexington Blue Grass

Thu 7/23

10:05 pm-3:07 pm

1 stop20h 02m

$320

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Wed 6/17

3:34 pm-9:07 pm

1 stop26h 33m

Lexington Blue Grass

Thu 7/23

10:05 pm-10:57 am

2 stops39h 52m

$366

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Thu 8/6

10:00 pm-9:24 am

1 stop8h 24m

Lexington Blue Grass

Fri 8/14

6:00 am-10:42 am

1 stop7h 42m

$394

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Fri 8/7

10:00 pm-9:24 am

1 stop8h 24m

Lexington Blue Grass

Thu 8/13

6:00 am-10:42 am

1 stop7h 42m

$414

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Fri 6/19

10:00 pm-9:25 am

1 stop8h 25m

Lexington Blue Grass

Fri 6/26

5:56 pm-9:48 pm

1 stop6h 52m

$419

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Sat 5/30

6:10 am-7:37 pm

2 stops10h 27m

Lexington Blue Grass

Wed 6/3

8:07 pm-11:59 pm

1 stop6h 52m

$424

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Sat 5/30

6:10 am-7:37 pm

2 stops10h 27m

Lexington Blue Grass

Wed 6/3

5:19 am-12:05 pm

2 stops9h 46m

$429
Quickest round-trip

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Sat 8/29

1:18 pm-10:38 pm

1 stop6h 20m

Lexington Blue Grass

Tue 9/1

9:15 am-12:50 pm

1 stop6h 35m

$431

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Sat 8/29

1:18 pm-10:38 pm

1 stop6h 20m

Lexington Blue Grass

Tue 9/1

7:00 am-6:11 pm

2 stops14h 11m

$436

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Fri 7/10

10:00 pm-9:16 am

1 stop8h 16m

Lexington Blue Grass

Sun 7/12

5:56 pm-9:50 pm

1 stop6h 54m

$444

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?

What is the cheapest month to fly to Lexington?

In general, January is the cheapest month to fly from Ontario to Lexington. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $0. If you are unable to visit Lexington during the month of January, then departing from Ontario during the month September is also very affordable. Most momondo users find prices during this month for around $288.

Can stopping save me money on Ontario to Lexington flights?

You could potentially save up to 49% 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

Frequently asked questions about flying from Ontario to Lexington

  • 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
United AirlinesPriceFrom $228Free CancellationRating
7.4
9,736 reviews
Search United Airlines flights
American AirlinesPriceFrom $288Free CancellationRating
7.1
11,642 reviews
Search American Airlines flights
DeltaPriceFrom $288Free CancellationRating
7.9
8,454 reviews
Search Delta flights

Traveling to a place near Lexington?

Book flights to Lexington if you plan to visit one of these locations
Richmond
Georgetown
Somerset
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.

An easier way to manage your Lexington trip

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