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Cheap flights from Ontario to Lexington from $264

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 7/15. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Ontario to Lexington

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
12:00 pm - 11:59 pm
ONT
-
LEX
8h 59m
1 stop
Delta Logo
1:06 pm - 6:30 pm
LEX
-
ONT
8h 24m
1 stop
$331Delta
Tue, Sep 1 - Sat, Sep 5
Delta Logo
10:00 pm - 9:22 am
ONT
-
LEX
8h 22m
1 stop
Delta Logo
6:00 am - 11:08 am
LEX
-
ONT
8h 08m
1 stop
$340Delta
Thu, Oct 1 - Wed, Oct 7
Delta Logo
10:00 pm - 10:09 am
ONT
-
LEX
9h 09m
1 stop
Delta Logo
5:56 pm - 9:52 pm
LEX
-
ONT
6h 56m
1 stop
$349Delta
Fri, Aug 7 - Thu, Aug 13
American Airlines Logo
7:15 pm - 9:11 am
ONT
-
LEX
10h 56m
2 stops
American Airlines Logo
4:35 pm - 10:34 pm
LEX
-
ONT
8h 59m
1 stop
$354American Airlines
Wed, Jul 29 - Sat, Aug 1
Delta Logo
10:00 pm - 10:07 am
ONT
-
LEX
9h 07m
1 stop
Delta Logo
6:00 am - 11:08 am
LEX
-
ONT
8h 08m
1 stop
$365Delta
Fri, Oct 2 - Tue, Oct 6
United Airlines Logo
5:45 am - 11:59 pm
ONT
-
LEX
15h 14m
2 stops
United Airlines Logo
9:03 am - 12:47 pm
LEX
-
ONT
6h 44m
1 stop
$370United Airlines
Sat, Aug 1 - Sat, Aug 8
Delta Logo
12:00 pm - 11:59 pm
ONT
-
LEX
8h 59m
1 stop
Delta Logo
3:32 pm - 9:52 pm
LEX
-
ONT
9h 20m
1 stop
$374Delta
Wed, Aug 5 - Thu, Aug 13
American Airlines Logo
12:33 pm - 11:19 pm
ONT
-
LEX
7h 46m
1 stop
American Airlines Logo
8:05 am - 6:15 pm
LEX
-
ONT
13h 10m
2 stops
$379American Airlines
Fri, Aug 7 - Thu, Aug 13
United Airlines Logo
5:45 am - 11:59 pm
ONT
-
LEX
15h 14m
2 stops
United Airlines Logo
7:00 am - 12:50 pm
LEX
-
ONT
8h 50m
2 stops
$381United Airlines
Sat, Aug 8 - Sat, Aug 29
American Airlines Logo
5:34 am - 5:14 pm
ONT
-
LEX
8h 40m
1 stop
American Airlines Logo
6:00 am - 9:34 am
LEX
-
ONT
6h 34m
1 stop
$383American Airlines
Sat, Aug 1 - Sat, Aug 8

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American Airlines flights from Ontario to Lexington

Our best American Airlines deals on Ontario to Lexington flight tickets
American Airlines
Jul 29
ONT7:15 pmOntario
10h 56m
2 stops
LEX9:11 amLexington Blue Grass
Aug 1
LEX4:35 pmLexington Blue Grass
8h 59m
1 stop
ONT10:34 pmOntario
$354
American Airlines
Aug 7
ONT12:33 pmOntario
7h 46m
1 stop
LEX11:19 pmLexington Blue Grass
Aug 13
LEX8:05 amLexington Blue Grass
13h 10m
2 stops
ONT6:15 pmOntario
$379
American Airlines
Aug 1
ONT5:34 amOntario
8h 40m
1 stop
LEX5:14 pmLexington Blue Grass
Aug 8
LEX6:00 amLexington Blue Grass
6h 34m
1 stop
ONT9:34 amOntario
$383

United Airlines flights from Ontario to Lexington

Our best United Airlines deals on Ontario to Lexington flight tickets
United Airlines
Aug 1
ONT5:45 amOntario
15h 14m
2 stops
LEX11:59 pmLexington Blue Grass
Aug 8
LEX9:03 amLexington Blue Grass
6h 44m
1 stop
ONT12:47 pmOntario
$370
United Airlines
Aug 8
ONT5:45 amOntario
15h 14m
2 stops
LEX11:59 pmLexington Blue Grass
Aug 29
LEX7:00 amLexington Blue Grass
8h 50m
2 stops
ONT12:50 pmOntario
$381
United Airlines
Aug 8
ONT5:45 amOntario
11h 44m
2 stops
LEX8:29 pmLexington Blue Grass
Aug 29
LEX9:15 amLexington Blue Grass
6h 35m
1 stop
ONT12:50 pmOntario
$406

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 July 6, 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

Tue 9/1

12:00 pm-11:59 pm

1 stop8h 59m

Lexington Blue Grass

Sat 9/5

1:06 pm-6:30 pm

1 stop8h 24m

$331

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Thu 10/1

10:00 pm-9:22 am

1 stop8h 22m

Lexington Blue Grass

Wed 10/7

6:00 am-11:08 am

1 stop8h 08m

$340

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Fri 8/7

10:00 pm-10:09 am

1 stop9h 09m

Lexington Blue Grass

Thu 8/13

5:56 pm-9:52 pm

1 stop6h 56m

$349

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Wed 7/29

7:15 pm-9:11 am

2 stops10h 56m

Lexington Blue Grass

Sat 8/1

4:35 pm-10:34 pm

1 stop8h 59m

$354

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Fri 10/2

10:00 pm-10:07 am

1 stop9h 07m

Lexington Blue Grass

Tue 10/6

6:00 am-11:08 am

1 stop8h 08m

$365

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Sat 8/1

5:45 am-11:59 pm

2 stops15h 14m

Lexington Blue Grass

Sat 8/8

9:03 am-12:47 pm

1 stop6h 44m

$370

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Wed 8/5

12:00 pm-11:59 pm

1 stop8h 59m

Lexington Blue Grass

Thu 8/13

3:32 pm-9:52 pm

1 stop9h 20m

$374

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Fri 8/7

12:33 pm-11:19 pm

1 stop7h 46m

Lexington Blue Grass

Thu 8/13

8:05 am-6:15 pm

2 stops13h 10m

$379

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Sat 8/8

5:45 am-11:59 pm

2 stops15h 14m

Lexington Blue Grass

Sat 8/29

7:00 am-12:50 pm

2 stops8h 50m

$381
Quickest round-trip

OntarioLexington

ONT - LEX

ONTLEX

Ontario

Sat 8/1

5:34 am-5:14 pm

1 stop8h 40m

Lexington Blue Grass

Sat 8/8

6:00 am-9:34 am

1 stop6h 34m

$383

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 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 August is also very affordable. Most momondo users find prices during this month for around $288.

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.
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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
9,938 reviews
Search United Airlines flights
DeltaPriceFrom $288Free CancellationRating
7.8
8,453 reviews
Search Delta flights
American AirlinesPriceFrom $359Free CancellationRating
7.1
11,784 reviews
Search American Airlines 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.

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