Cheap Flights from Chattanooga to Ontario International

Compare Chattanooga to Ontario International flight deals

Find the cheapest month or even day of the year to fly to Ontario International

Book the best Ontario International fare with no extra fees

Find the cheapest month to fly from Chattanooga to Ontario International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Chattanooga to Ontario International flights are currently cheapest in August.

Chattanooga to Ontario International: Alternative routes

Compare routes from Chattanooga to Ontario below. You may find an airport to fly into that's cheaper, faster, or easier than Ontario International.

Chattanooga to Ontario: Flight information

The things to know before you go.
Cheapest flight foundR 2,914
Cheapest month to flyAugust

Finding cheap flights from Chattanooga to Ontario International: Frequently asked questions

The best price we found for a return flight from Chattanooga to Ontario International is R 5,092. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Chattanooga to Ontario International. But we found flights with one or more stops from R 5,092.
As of July 2025, there are no flights flying from Chattanooga to Ontario International.
The cheapest month to fly from Chattanooga to Ontario International is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Chattanooga Airport to Ontario International Airport on Wednesday, 10 September 2025.
No airlines currently offer direct flights between Chattanooga Airport and Ontario International Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Ontario International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Ontario is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Delta offers the cheapest flight tickets to Ontario International.

Travelling from Chattanooga Airport (CHA) to Ontario International Airport (ONT): what you need to know

  • Ontario is three hours behind Chattanooga and is in the UTC-7 timezone.

  • To ensure you catch your CHA to ONT flight, allow plenty of time to check in and drop off your luggage. Turning up two hours ahead of international departures and one hour before domestic flights is the standard rule.

  • Travelling during a peak month such as June? Public holidays and other popular seasons can lead to longer lines and delays at airport checkpoints. Be extra cautious and get there up to four hours before an international flight and two hours before a domestic departure.

  • Consider adding a stopover when booking your ticket from Chattanooga Airport to Ontario International Airport. Just uncheck 'Direct flights only' to break up your trip, or perhaps see a new city along the way. Here are some options between CHA and ONT:

    • Dallas/Fort Worth International Airport

    • Hartsfield-Jackson Atlanta International Airport

    • Harry Reid Airport (formerly McCarran Airport)

How to find the cheapest flights from Chattanooga Airport (CHA) to Ontario International Airport (ONT)

  • The lowest price we've seen for a one-way Chattanooga Airport to Ontario International Airport flight is R 2,914. A return plane ticket is currently R 5,092. Depending on the availability and when you book, these fares can change.

  • It's often best to book as early as possible if you're looking for cheap tickets from CHA to ONT. That's because flight prices are based on demand, which tends to rise closer to departure.

  • If you're willing to be flexible with your trip dates, use the 'Whole month' search function. It'll find the cheapest price across the month when looking for your flight from Chattanooga Airport to Ontario International Airport.

  • Landing cheap flights from CHA to ONT couldn't be easier with Price Alerts. All you need to do is set up one of these automatic alerts and we'll get in touch when a new discounted fare appears.

  • Pick your ideal departure and arrival times, airlines and number of stops with the filters. Alternatively, sort your results by 'Cheapest' to get the best deals on flights from Chattanooga Airport to Ontario International Airport.

Handy information about Chattanooga Airport (CHA)

  • Of the flights that depart from Chattanooga Airport, 76.74% arrive as scheduled at their destination.

  • To reach Chattanooga Airport from central Chattanooga, it'll take about 15 minutes if you're travelling by car. This depends on traffic though. It's approximately 21 kilometres from the airport to the city centre.

  • Planning to catch public transport? Expect a journey time of around 1 hour 10 minutes.

  • Need a handy hotel near CHA? If you've booked an early flight from Chattanooga Airport to Ontario International Airport, these accommodation options will have you sleeping moments from your departure gate:

Arriving at Ontario International Airport (ONT)

Getting from Ontario International Airport (ONT) to central Ontario

  • ONT is located at 2900 E. Airport Drive.

  • Ontario International Airport to the centre of Ontario has a drive time of about 10 minutes. It's approximately 6 kilometres away.

  • It typically takes 1 hour 30 minutes if you're travelling by public transport.

When to fly to Ontario International Airport (ONT)

  • It's time to pick your trip dates for your flight from Chattanooga Airport to Ontario International Airport. August is the busiest month to head to Ontario. If you prefer a more low-key vibe, go in May.

  • The warmest month in Ontario is August, with temperatures ranging between 15ºC (59ºF) and 35ºC (95ºF). Book your flights from Chattanooga Airport to Ontario International Airport in this month if this is the type of weather you enjoy.

  • Look for cheap tickets from CHA to ONT in January if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between 4ºC (39ºF) and 23ºC (73ºF) on average.

Explore more of United States

  • Los Angeles is just one of the many cities in United States waiting to be discovered after you've experienced Ontario. Around 56 kilometres away to the west, top sights here include Griffith Observatory, The Broad and La Brea Tar Pits & Museum.

  • If there's time to check out another side of United States, consider San Diego, roughly 153 kilometres south of Ontario. San Diego Zoo, USS Midway Museum and SeaWorld San Diego are the start of reasons to visit.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.