Cheap Flights from Tri-Cities (TRI) to Ontario (ONT)

Popular airlines from Tri-Cities, TN (TRI-Tri-Cities Regional) to Los Angeles - Ontario Intl. Airport (ONT)

  • Be in the know

    Get alerts if flight prices drop or rise*
  • Book smarter

    Save up to 30% on select hotels after you book a flight*
  • Earn twice

    Earn your airline miles on top of our rewards

Frequently asked questions

What is the cheapest month to fly from Tri-Cities, TN (TRI-Tri-Cities Regional) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
February is typically the cheapest month to fly from Tri-Cities, TN (TRI-Tri-Cities Regional) to Ontario, CA (ONT-Los Angeles - Ontario Intl.), with average round-trip fares around 847 CAD. This is about 34% lower than the average price throughout the year. February often sees lower prices as it falls outside of peak holiday travel periods, leading to less demand. Other cheap months to fly from Tri-Cities, TN (TRI-Tri-Cities Regional) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) include January and March.
How do I find cheap flights from Tri-Cities, TN (TRI-Tri-Cities Regional) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
To find a cheap flight from Tri-Cities, TN (TRI-Tri-Cities Regional) to Ontario, CA (ONT-Los Angeles - Ontario Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Tri-Cities, TN (TRI-Tri-Cities Regional) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
The best time to fly from Tri-Cities Regional (TRI) to Los Angeles - Ontario Intl. (ONT) for a good deal is typically in February or March. Based on booking data from the past year, you can expect average round-trip flight prices around 847 CAD during these months. While these might not be the busiest travel times, flying during these months can help you find more budget-friendly options for your trip.
How many flights per day from Tri-Cities, TN (TRI-Tri-Cities Regional) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
There are approximately 11 connecting flights per day from Tri-Cities Regional (TRI) to Los Angeles - Ontario Intl. (ONT). Some common connection points include Hartsfield-Jackson Atlanta Intl. (ATL), O'Hare Intl. (ORD), and Dallas-Fort Worth Intl. (DFW).
What is the earliest flight from Tri-Cities, TN (TRI-Tri-Cities Regional) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
The earliest flight from Tri-Cities, TN (TRI-Tri-Cities Regional) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) typically departs at approximately 5:05 AM local time. This service is operated by American Airlines and is a seasonal offering, active only in October. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Tri-Cities, TN (TRI-Tri-Cities Regional) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
When flying from Tri-Cities, TN (TRI-Tri-Cities Regional) to Ontario, CA (ONT-Los Angeles - Ontario Intl.), you'll typically find the most flights on a Friday, with around 8 flights available. This gives you a good selection for your travel plans. Major airlines on this route include Delta Air Lines and American Airlines. Looking at the weekly schedule, Fridays offer notably more flight options compared to other days.
What are the most popular departure times for flights from Tri-Cities, TN (TRI-Tri-Cities Regional) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
The most popular departure times for flights from Tri-Cities Regional (TRI) to Los Angeles - Ontario Intl. (ONT) are in the early morning, from 6am to 9am. About 33% of passengers prefer this time window. Many major carriers, including American Airlines, Delta Air Lines and United Airlines, offer flights during this window. These times work well because you can get an early start to your travel day and arrive at your destination with plenty of time.
How long does it take to fly from Tri-Cities, TN (TRI-Tri-Cities Regional) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
Flying from TRI to ONT with a connection usually takes about 8 hours 30 minutes, traveling roughly 1,981 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Tri-Cities, TN (TRI-Tri-Cities Regional) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
Select the "Business class" and "First class" filters when looking for TRI to ONT flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Tri-Cities, TN (TRI-Tri-Cities Regional) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) flight with Expedia?
It's easy to earn miles on a Tri-Cities, TN (TRI-Tri-Cities Regional) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia. *Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Ontario from Tri-Cities Regional (TRI)?
From Tri-Cities Regional (TRI), you can fly directly into Los Angeles - Ontario Intl. (ONT) to reach Ontario. Some flights may connect through major hubs like Hartsfield-Jackson Atlanta Intl. (ATL), Charlotte-Douglas Intl. (CLT), Dallas-Fort Worth Intl. (DFW) before reaching Ontario. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Tri-Cities, TN (TRI-Tri-Cities Regional) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) at the last minute?
Typically, booking a last minute flight from Tri-Cities, TN (TRI-Tri-Cities Regional) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Tri-Cities, TN (TRI-Tri-Cities Regional) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) flight and hotel package?
Securing a Tri-Cities, TN (TRI-Tri-Cities Regional) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Tri-Cities, TN (TRI-Tri-Cities Regional) to Ontario, CA (ONT-Los Angeles - Ontario Intl.)?
If you booked your Tri-Cities, TN (TRI-Tri-Cities Regional) to Ontario, CA (ONT-Los Angeles - Ontario Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Tri-Cities Regional
Destination airport
Los Angeles - Ontario Intl.
Distance
3168 km

Book with confidence

Explore a world of travel with Expedia

*Available to Expedia members.