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LEX - ONT

$361 Find Cheap Flights from Lexington to Ontario - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$361
Typical prices: $344-$508
Delta
Wed 10/31Sat 11/3
LEX - ONT • 1 stop
Cheapest one-way
$379
Typical prices: $217-$620
Delta
Tue 12/4
LEX - ONT • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Lexington and Ontario. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
December
Cheapest • 24% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Atlanta Hartsfield-Jackson (ATL)
Cheapest • Avg $414 (round-trip)
Denver Intl (DEN)
Shortest trip • 6h 25m (one-way)
Insights
Insights
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Flight Deals

Cheap Flights from Lexington to Ontario (LEX-ONT)

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

Recent round-trip flight deals from Lexington to Ontario

Sat, Oct 31 - Tue, Nov 3
Delta Logo
6:00 am - 11:06 amLEX  Lexington Blue Grass-ONT Ontario
8h 06m1 stop Atlanta Hartsfield-Jackson
Delta Logo
12:16 pm - 10:53 pmONT  Ontario-LEX Lexington Blue Grass
7h 37m1 stop Atlanta Hartsfield-Jackson
$361Delta
Wed, Feb 17 - Wed, Feb 24
Delta Logo
5:55 pm - 10:14 pmLEX  Lexington Blue Grass-ONT Ontario
7h 19m1 stop Atlanta Hartsfield-Jackson
Delta Logo
12:00 pm - 11:56 pmONT  Ontario-LEX Lexington Blue Grass
8h 56m1 stop Atlanta Hartsfield-Jackson
$361Delta
Wed, Feb 17 - Tue, Feb 23
Delta Logo
5:55 pm - 10:14 pmLEX  Lexington Blue Grass-ONT Ontario
7h 19m1 stop Atlanta Hartsfield-Jackson
Delta Logo
7:00 am - 5:10 pmONT  Ontario-LEX Lexington Blue Grass
7h 10m1 stop Atlanta Hartsfield-Jackson
$361Delta
Wed, Oct 28 - Sat, Oct 31
Delta Logo
7:10 am - 11:06 amLEX  Lexington Blue Grass-ONT Ontario
6h 56m1 stop Atlanta Hartsfield-Jackson
Delta Logo
12:16 pm - 10:53 pmONT  Ontario-LEX Lexington Blue Grass
7h 37m1 stop Atlanta Hartsfield-Jackson
$361Delta
Thu, Oct 29 - Sat, Oct 31
American Airlines Logo
6:37 pm - 11:52 pmLEX  Lexington Blue Grass-ONT Ontario
8h 15m1 stop Dallas/Fort Worth
American Airlines Logo
7:00 am - 5:48 pmONT  Ontario-LEX Lexington Blue Grass
7h 48m1 stop Dallas/Fort Worth
$370American Airlines
Thu, Oct 29 - Sat, Oct 31
American Airlines Logo
12:50 pm - 6:44 pmLEX  Lexington Blue Grass-ONT Ontario
8h 54m1 stop Dallas/Fort Worth
American Airlines Logo
9:41 am - 6:49 pmONT  Ontario-LEX Lexington Blue Grass
6h 08m1 stop Phoenix Sky Harbor Intl
$370American Airlines
Thu, Oct 29 - Wed, Nov 4
American Airlines Logo
7:55 pm - 11:52 pmLEX  Lexington Blue Grass-ONT Ontario
6h 57m1 stop Dallas/Fort Worth
American Airlines Logo
10:30 pm - 8:43 amONT  Ontario-LEX Lexington Blue Grass
7h 13m1 stop Charlotte Douglas
$371American Airlines
Thu, Oct 29 - Sat, Oct 31
United Airlines Logo
9:00 am - 12:30 pmLEX  Lexington Blue Grass-ONT Ontario
6h 30m1 stop Denver Intl
United Airlines Logo
9:25 am - 11:54 pmONT  Ontario-LEX Lexington Blue Grass
11h 29m2 stops San Francisco Chicago O'Hare Intl
$375United Airlines
Thu, Oct 29 - Sat, Oct 31
United Airlines Logo
5:30 am - 12:30 pmLEX  Lexington Blue Grass-ONT Ontario
10h 00m2 stops Chicago O'Hare Intl Denver Intl
United Airlines Logo
6:00 am - 7:10 pmONT  Ontario-LEX Lexington Blue Grass
10h 10m2 stops Houston George Bush Intcntl Chicago O'Hare Intl
$380United Airlines
Wed, Oct 28 - Wed, Nov 4
United Airlines Logo
9:00 am - 12:33 pmLEX  Lexington Blue Grass-ONT Ontario
6h 33m1 stop Denver Intl
United Airlines Logo
1:29 pm - 10:36 pmONT  Ontario-LEX Lexington Blue Grass
6h 07m1 stop Denver Intl
$481United Airlines
Booking Insights

Price, demand and travel trends for Lexington to Ontario flights

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

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

Round-trip flights from Lexington to Ontario typically range from $344 to $508. The lowest price found in the past 5 days was $361, on Delta.

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

Based on deals KAYAK users found in the last 12 months, Tuesday is the cheapest day of the week to fly from Lexington to Ontario. It’s 20% cheaper than the average day, while Sunday is the most expensive, with prices 49% higher.

Find deals

Key details for Lexington to Ontario flights

Low season

March

Cheapest flight

$361
Beat the crowds with an average 86% drop in travelers.
The most popular month to fly with an average 238% increase in travelers.
Round-trip flight from Lexington to Ontario

When to book flights from Lexington to Ontario

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

Your Lexington to Ontario flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

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

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

    • Economy Class
    • First Class

  • How long is a flight from Lexington to Ontario?

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

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

    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.

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

    Round-trip flights from Lexington to Ontario range from $344 to $508, with an average of $426 over the past 12 months. Anything below $344 counts as a good deal.

  • Have flight prices from Lexington to Ontario 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 $2,380. That means the highest observed fare was about 7x higher than the lowest one.

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

    One-way fares from Lexington to Ontario are currently higher than usual. Average one-way flight prices are about $442, which is 34% above the typical average for this route.

  • What car rental options are available at Ontario Airport (ONT)?

    Ontario Airport (ONT) hosts 5 major car rental companies, with daily rates starting from around $18 for economy cars. Top options include:

    • Fox
    • Thrifty
    • Europcar
    • Dollar
    • Alamo

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

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

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

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

    • Atlanta Hartsfield-Jackson (ATL) - 51% of one-stop connections
    • Dallas/Fort Worth (DFW) - 39% of one-stop connections
    • Denver Intl (DEN) - 8% of one-stop connections
    • Charlotte Douglas (CLT) - 2% of one-stop connections

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

    Yes. Flexible dates can save you up to 46% on flights from Lexington to Ontario. Tuesday is the cheapest departure day at $344 round-trip on average, while Sunday is the most expensive at $636, a difference of $292.

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

    Flying via Denver Intl (DEN) gives the shortest average 1-stop total travel time at 6h 25m, compared with 7h 07m via Dallas/Fort Worth (DFW) and 7h 36m via Atlanta Hartsfield-Jackson (ATL).

  • What is the time difference between Lexington and Ontario?

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

  • What popular places can I visit in Ontario?

    Some of the most popular sights in Ontario are Ontario Convention Center and Cucamonga-Guasti Regional Park. These are among the most viewed places in Ontario on KAYAK.

Your guide to booking Lexington to Ontario flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure and avoid flying on Sunday. On this route, Tuesday flights average $344, about $292 less than Sunday fares (46% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Lexington to Ontario trip for December. Fares historically average $323 round-trip in that month - typically $749 less than the most expensive month, which is September (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Ontario Airport.

    • Azure Hotel & Suites, Trademark Collection by Wyndham
    • La Quinta Inn & Suites by Wyndham Ontario Airport
    • Ontario Airport Inn

More options for your flight from Lexington to Ontario

Complete your trip to Ontario with a hotel stay or car rental

Car rentals in Ontario
Hotels in Ontario
Vacations in Ontario