$139 Cheap Delta flights Ontario (ONT) to Lexington (LEX)

View $139 flight on Sun, Aug 31, 2025Opens in a new window

$139 Cheap Delta flights Ontario (ONT) to Lexington (LEX)

Prices were available within the past 7 days and start at $139 for one-way flights and $283 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Thu, Nov 27 - Wed, Dec 3
ONT
Ontario
LEX
Lexington
$283 Roundtrip, found 1 day ago
$283
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Nov 27 from Ontario to Lexington, returning Wed, Dec 3, priced at $283 found 1 day ago
Delta
Fri, Oct 10 - Sat, Oct 11
ONT
Ontario
LEX
Lexington
$283 Roundtrip, found 3 days ago
$283
Roundtrip
found 3 days ago
Select Delta flight, departing Fri, Oct 10 from Ontario to Lexington, returning Sat, Oct 11, priced at $283 found 3 days ago
Delta
Wed, Oct 1 - Fri, Oct 10
ONT
Ontario
LEX
Lexington
$314 Roundtrip, found 4 hours ago
$314
Roundtrip
found 4 hours ago
Select Delta flight, departing Wed, Oct 1 from Ontario to Lexington, returning Fri, Oct 10, priced at $314 found 4 hours ago
Delta
Wed, Dec 31 - Sat, Jan 3
ONT
Ontario
LEX
Lexington
$349 Roundtrip, found 6 days ago
$349
Roundtrip
found 6 days ago
Select Delta flight, departing Wed, Dec 31 from Ontario to Lexington, returning Sat, Jan 3, priced at $349 found 6 days ago
Delta
Fri, Oct 3 - Fri, Oct 10
ONT
Ontario
LEX
Lexington
$369 Roundtrip, found 4 hours ago
$369
Roundtrip
found 4 hours ago
Select Delta flight, departing Fri, Oct 3 from Ontario to Lexington, returning Fri, Oct 10, priced at $369 found 4 hours ago
Flights from Ontario (ONT) to Lexington (LEX)
Origin airport
Los Angeles - Ontario Intl.
Destination airport
Blue Grass
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Popular airline
Delta
Distance
1853 mi

Frequently asked questions

How much is a Delta Air Lines flight from Los Angeles - Ontario Intl. Airport (ONT) to Blue Grass Airport (LEX)?
Use the "Price (lowest to highest)" filter on Expedia to look for cheap Delta Air Lines return flights from $283 from ONT to LEX. Affordable one-way tickets from $139 are available as well.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from ONT to LEX with Delta Air Lines?
January is one of the cheapest months to get away to Lexington with Delta Air Lines. You could also find great prices on return and one-way tickets in February.
What is the cheapest time to book flights from Los Angeles - Ontario Intl. Airport (ONT) to Blue Grass Airport (LEX) with Delta Air Lines?
Search for cheap Delta Air Lines flights from Los Angeles - Ontario Intl. Airport (ONT) to Blue Grass Airport (LEX) one to three months ahead of your departure day. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. Regardless of fare type and itinerary, the best day to book a domestic flight is usually Sunday and the most expensive day is typically Monday. Passengers who book on a Sunday can save 6% on average compared to those who book their travel on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does Delta Air Lines fly nonstop from Los Angeles - Ontario Intl. Airport (ONT) to Blue Grass Airport (LEX)?
Simply enter your dates, click search and check "Nonstop" on Expedia to find any direct flights from ONT to LEX with Delta Air Lines or another carrier.
What is the earliest Delta Air Lines flight from ONT to LEX?
To find the earliest departures from ONT to LEX with Delta Air Lines, filter your search by "Morning" and "Early Morning." Choosing an early flight generally means you'll experience fewer cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does Delta Air Lines fly into in Lexington?
Delta Air Lines flights from Los Angeles - Ontario Intl. Airport (ONT) to Lexington come in to land at Blue Grass Airport (LEX). This is the main entry point here.
Why fly with Delta Air Lines from ONT to LEX?
Delta Air Lines makes flying from ONT to LEX more enjoyable with an excellent in-flight experience and a rewarding loyalty program. You could even start earning points with Delta SkyMiles. Remember to sign up to Expedia's free One Key™ rewards program to earn OneKeyCash™*, which can be redeemed on future bookings.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
Can I change or cancel my Delta Air Lines flight from Los Angeles - Ontario Intl. Airport (ONT) to Blue Grass Airport (LEX)?
Depending on your ticket type, a fee is typically charged if you modify or cancel your booking more than 24 hours after it's been confirmed. To find plane tickets with more flexibility, select our "No cancel fee" or "Changes included" filter when you search for flights. To learn more about changing or canceling your reservation, head to "Trips," select your flight and click on "Manage Booking."

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*Available to One Key members.