ONT - LEX

$344 Find Cheap Flights from Ontario to Lexington - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$361
Typical prices: $382-$554
Delta
Sun 11/11Sat 11/17
ONT - LEX • 1 stop
Cheapest one-way
$344
Typical prices: $288-$553
Multiple Airlines
Tue 10/2
ONT - LEX • 3 stops
Nonstop flights
Not available
There are currently no direct flights between Ontario and Lexington. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
September
Cheapest • 26% price drop
July
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Charlotte Douglas (CLT)
Cheapest • Avg $394 (round-trip)
Denver Intl (DEN)
Shortest trip • 6h 19m (one-way)
Insights
Insights
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Flight Deals

Cheap Flights from Ontario to Lexington (ONT-LEX)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Lexington

Wed, Nov 11 - Tue, Nov 17
Delta Logo
12:18 pm - 11:58 pmONT  Ontario-LEX Lexington Blue Grass
8h 40m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:00 am - 11:08 amLEX  Lexington Blue Grass-ONT Ontario
8h 08m1 stop Atlanta Hartsfield-Jackson
$361Delta
Wed, Nov 11 - Wed, Nov 18
Delta Logo
12:18 pm - 11:58 pmONT  Ontario-LEX Lexington Blue Grass
8h 40m1 stop Atlanta Hartsfield-Jackson
Delta Logo
7:05 am - 11:08 amLEX  Lexington Blue Grass-ONT Ontario
7h 03m1 stop Atlanta Hartsfield-Jackson
$361Delta
Wed, Oct 21 - Thu, Oct 29
American Airlines Logo
10:10 pm - 8:47 amONT  Ontario-LEX Lexington Blue Grass
7h 37m1 stop Charlotte Douglas
American Airlines Logo
6:37 pm - 11:52 pmLEX  Lexington Blue Grass-ONT Ontario
8h 15m1 stop Dallas/Fort Worth
$370American Airlines
Thu, Nov 12 - Tue, Nov 17
Delta Logo
11:10 pm - 9:38 amONT  Ontario-LEX Lexington Blue Grass
7h 28m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:00 am - 11:08 amLEX  Lexington Blue Grass-ONT Ontario
8h 08m1 stop Atlanta Hartsfield-Jackson
$370Delta
Wed, Oct 21 - Thu, Oct 29
American Airlines Logo
7:34 pm - 8:47 amONT  Ontario-LEX Lexington Blue Grass
10h 13m2 stops Phoenix Sky Harbor Intl Charlotte Douglas
American Airlines Logo
12:50 pm - 6:44 pmLEX  Lexington Blue Grass-ONT Ontario
8h 54m1 stop Dallas/Fort Worth
$375American Airlines
Wed, Oct 21 - Thu, Oct 29
American Airlines Logo
7:34 pm - 8:47 amONT  Ontario-LEX Lexington Blue Grass
10h 13m2 stops Phoenix Sky Harbor Intl Charlotte Douglas
American Airlines Logo
6:37 pm - 11:52 pmLEX  Lexington Blue Grass-ONT Ontario
8h 15m1 stop Dallas/Fort Worth
$375American Airlines
Sat, Feb 6 - Tue, Feb 9
United Airlines Logo
5:00 am - 5:17 pmONT  Ontario-LEX Lexington Blue Grass
9h 17m2 stops Denver Intl Chicago O'Hare Intl
United Airlines Logo
11:00 am - 9:40 pmLEX  Lexington Blue Grass-ONT Ontario
13h 40m2 stops Chicago O'Hare Intl Houston George Bush Intcntl
$451United Airlines
Mon, Nov 2 - Mon, Nov 23
United Airlines Logo
1:29 pm - 10:36 pmONT  Ontario-LEX Lexington Blue Grass
6h 07m1 stop Denver Intl
United Airlines Logo
11:05 am - 8:51 pmLEX  Lexington Blue Grass-ONT Ontario
12h 46m2 stops Chicago O'Hare Intl Denver Intl
$455United Airlines
Wed, Sep 30 - Sat, Oct 3
Alaska Airlines Logo
6:02 am - 11:46 pmONT  Ontario-LEX Lexington Blue Grass
14h 44m2 stops Seattle/Tacoma Intl Chicago O'Hare Intl
Alaska Airlines Logo
5:23 am - 1:16 pmLEX  Lexington Blue Grass-ONT Ontario
10h 53m2 stops Chicago O'Hare Intl Seattle/Tacoma Intl
$730Alaska Airlines
Thu, Oct 29 - Mon, Nov 2
Alaska Airlines Logo
6:56 pm - 10:44 amONT  Ontario-LEX Lexington Blue Grass
12h 48m2 stops Seattle/Tacoma Intl Chicago O'Hare Intl
Alaska Airlines Logo
5:14 am - 3:13 pmLEX  Lexington Blue Grass-ONT Ontario
12h 59m2 stops Chicago O'Hare Intl Seattle/Tacoma Intl
$783Alaska Airlines
Booking Insights

Price, demand and travel trends for Ontario to Lexington flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Ontario to Lexington with more confidence.

How much is a round-trip flight from Ontario to Lexington?

Round-trip flights from Ontario to Lexington start at $361. Prices are below average for this route right now, with typical round-trip fares ranging from $382 to $554. The lowest price found in the past 5 days was $361 on Delta.

What's the cheapest day of the week to fly from Ontario to Lexington?

Friday is the cheapest day of the week to fly from Ontario to Lexington, it is 16% cheaper than the average day. Sunday is the most expensive day with flight prices 89% higher than average. Based on deals found by KAYAK users in the last 12 months.

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Key details for Ontario to Lexington flights

Low season

December

Cheapest flight

$344
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly with an average 47% increase in price.
Flight from Ontario to Lexington

When to book flights from Ontario to Lexington

Are your dates flexible? Find out the best times to travel from Ontario to Lexington based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Ontario to Lexington flight questions, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • Which airports can I use when flying from Ontario to Lexington?

    Flights from Ontario to Lexington usually depart from Ontario (ONT) and arrive at Lexington Blue Grass (LEX).

  • What cabin classes can I book on flights from Ontario to Lexington?

    Two cabin classes are available on flights from Ontario to Lexington:

    • Economy Class
    • First Class

  • Which airports do connecting flights from Ontario to Lexington pass through?

    One-stop flights from Ontario to Lexington most commonly connect through:

    • Atlanta Hartsfield-Jackson (ATL) - 43% of one-stop connections
    • Dallas/Fort Worth (DFW) - 42% of one-stop connections
    • Denver Intl (DEN) - 9% of one-stop connections
    • Chicago O'Hare Intl (ORD) - 5% of one-stop connections

    Atlanta Hartsfield-Jackson (ATL) handles the largest share of one-stop connections on this route.

  • Can I save money by using flexible dates for flights from Ontario to Lexington?

    Yes. Being flexible with your travel dates can save you up to 56% on the Ontario to Lexington route. Friday is the cheapest departure day at $383 round-trip on average, while Sunday is the most expensive at $860, a difference of $477. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How long is a flight from Ontario to Lexington?

    A nonstop flight from Ontario to Lexington takes 0h 00m, covering 1,852 miles.

  • Do I need a passport to fly from Ontario to Lexington?

    No, a passport is not required for this domestic route, but you will need a real ID-compliant driver's license, a state ID, or another TSA-accepted form of identification.

  • Have flight prices from Ontario to Lexington changed much recently?

    Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $361 to $2,972. That means the highest observed fare was about 8x higher than the lowest one.

  • How are flight prices from Ontario to Lexington looking right now?

    One-way fares from Ontario to Lexington are currently higher than usual. Average one-way flight prices are about $404, which is 31% above the typical average for this route.

  • How much time can I save by choosing a different layover airport from Ontario to Lexington?

    Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time at 6h 19m, compared with 7h 16m via Dallas/Fort Worth (DFW) and 7h 37m via Atlanta Hartsfield-Jackson (ATL).

  • What is the time difference between Ontario and Lexington?

    Lexington is 3 hours ahead of Ontario (Eastern Time vs Pacific Time). Plan for the time shift when scheduling connections or first-day activities.

  • What car rental options are available at Lexington Blue Grass Airport (LEX)?

    Lexington Blue Grass Airport (LEX) hosts 5 major car rental companies, with daily rates starting from around $30 for economy cars. Top options include:
    • Dollar
    • Hertz
    • Alamo
    • Budget
    • Enterprise Rent-A-Car

  • How much should I expect to pay for a Ontario to Lexington flight?

    Round-trip flights from Ontario to Lexington range from $382 to $554, with an average of $453 over the past 12 months. Anything below $382 counts as a good deal.

Your guide to booking Ontario to Lexington flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates can be flexible, aim for a Friday departure instead of Sunday. On this route, Friday flights average $383 - about $477 less than Sunday (55% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Ontario to Lexington trip for September. Fares historically average $336 round-trip in that month - typically $332 less than the most expensive month, which is July (based on the last 12 months).

More options for your flight from Ontario to Lexington

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