$143 Cheap Delta flights Nashville (BNA) to Ontario (ONT)

View $143 flight on Thu, Dec 11, 2025Opens in a new window

$143 Cheap Delta flights Nashville (BNA) to Ontario (ONT)

Prices were available within the past 7 days and start at $143 for one-way flights and $207 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Fri, Nov 14 - Mon, Nov 17
BNA
Nashville
ONT
Ontario
$207 Roundtrip, found 3 hours ago
$207
Roundtrip
found 3 hours ago
Select Delta flight, departing Fri, Nov 14 from Nashville to Ontario, returning Mon, Nov 17, priced at $207 found 3 hours ago
Delta
Thu, Dec 11 - Sun, Dec 14
BNA
Nashville
ONT
Ontario
$285 Roundtrip, just found
$285
Roundtrip
just found
Select Delta flight, departing Thu, Dec 11 from Nashville to Ontario, returning Sun, Dec 14, priced at $285 just found
Flights from Nashville (BNA) to Ontario (ONT)
Origin airport
Nashville Intl.
Destination airport
Los Angeles - Ontario Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, JetBlue Airways, Southwest Airlines, United
Popular airline
American Airlines
Distance
1746 mi
Average flight time
4 hours 15 mins

Frequently asked questions

How much is a Delta Air Lines flight from Nashville Intl. Airport (BNA) to Los Angeles - Ontario Intl. Airport (ONT)?
You can discover budget-friendly return Delta Air Lines flights from $207 from BNA to ONT by filtering your results from "Price (lowest to highest)" on Expedia. Or search for options from $143 for a one-way trip.**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 BNA to ONT with Delta Air Lines?
Browse for return or one-way flights to Ontario in January or April. You could find a cheap fare with Delta Air Lines during these off-season months.
What is the cheapest time to book flights from Nashville Intl. Airport (BNA) to Los Angeles - Ontario Intl. Airport (ONT) with Delta Air Lines?
Look for affordable Delta Air Lines flights from Nashville Intl. Airport (BNA) to Los Angeles - Ontario Intl. Airport (ONT) one to three months before your day of departure. 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. No matter the fare class and itinerary, the best day to book a domestic flight is usually Sunday and the most expensive tends to be 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 Nashville Intl. Airport (BNA) to Los Angeles - Ontario Intl. Airport (ONT)?
To see if there's a direct route from BNA to ONT with Delta Air Lines or any other carriers, use our "Nonstop" filter when searching for flights.
What is the earliest Delta Air Lines flight from BNA to ONT?
Search Delta Air Lines's earliest flights from BNA to ONT by using the "Morning" and "Early Morning" filters. Not only will you arrive at your destination sooner, early departures also experience 20% 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 Ontario?
Delta Air Lines flights from Nashville Intl. Airport (BNA) to Ontario touch down at Los Angeles - Ontario Intl. Airport (ONT). This is the main gateway here.
Why fly with Delta Air Lines from BNA to ONT?
Offering an excellent in-flight experience and a rewarding loyalty program, Delta Air Lines is a popular option for many passengers flying from BNA to ONT. Plus, if you're a Delta SkyMiles and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which you can put toward future trips.*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 Nashville Intl. Airport (BNA) to Los Angeles - Ontario Intl. Airport (ONT)?
Depending on your ticket type, a fee generally applies if you modify or cancel your flight more than 24 hours after it's confirmed. To find tickets with more flexibility, select our "No cancel fee" or "Changes included" filter when you look for flights. For more details on changing or canceling your reservation, head to "Trips," select your flight and tick "Manage Booking."

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*Available to One Key members.