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

Flight deals from Chattanooga to Ontario International

Looking for a cheap last-minute deal or the best return flight from Chattanooga Airport to Ontario International Airport? If you want to travel next month, return fares start from R 6,926. Find the lowest prices on one-way and return tickets right here.

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: Flight information

The things to know before you go.
Cheapest flight foundR 2,789
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 5,734. 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 5,734.
As of June 2026, there are no flights flying from Chattanooga to Ontario International.
The cheapest month to fly from Chattanooga to Ontario International is usually July.
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 Thursday, 30 July 2026.
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, United offers the cheapest flight tickets to Ontario International.

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

  • Ontario is three hours behind Chattanooga and follows the UTC-8 timezone.

  • For a stress-free journey, turn up at the airport two hours ahead of international flights and an hour before domestic departures. This will give you plenty of time to catch your CHA to ONT flight.

  • You can expect bigger queues in popular months such as October. Arriving up to four hours in advance for international flights and two hours for domestic departures is a smart move.

  • Think about adding a stopover when booking your ticket from Chattanooga Airport to Ontario International Airport. Just deselect 'Direct flights only' to break up your journey, or perhaps explore a new destination along the way. Check out these options between CHA and ONT:

    • Atlanta Hartsfield-Jackson Airport

    • Dallas Fort Worth International Airport

    • Harry Reid International Airport

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

  • Right now, R 2,789 is the lowest price we've seen for a one-way Chattanooga Airport to Ontario International Airport flight. The best price for a return ticket is R 5,734. Remember that fares may change due to demand when booking.

  • Don't leave things to the last moment. You're more likely to find cheap tickets from CHA to ONT if you book early. Airlines often have some amazing early bird rates.

  • If you can be flexible with your travel plans, try using the 'Whole month' tool. It'll find the cheapest price across every month when searching for your flight from Chattanooga Airport to Ontario International Airport.

  • Stay on top of deals for cheap flights from CHA to ONT by setting up a Price Alert. You'll receive an email or notification through the app when a lower fare pops up.

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

Handy information about Chattanooga Airport (CHA)

  • When it comes to Chattanooga Airport's on-time performance, 77% of flights arrive within the expected timeframe.

  • Chattanooga Airport is about 14 kilometres from central Chattanooga. If you're driving, catching a taxi or ride-sharing from the centre, it'll take you 20 minutes or so to get there, depending on the traffic.

  • Planning to take public transport? You can expect a journey time of around 40 minutes.

  • Taking an early flight from Chattanooga Airport to Ontario International Airport? Avoid the last-minute rush to the terminal (and sneak in some extra precious sleep) by picking one of these hotels near CHA:

Arriving at Ontario International Airport (ONT)

When to fly to Ontario International Airport (ONT)

  • It's time to work out your trip dates for your flight from Chattanooga Airport to Ontario International Airport. July is the busiest month to head to Ontario. If you'd like a more relaxed vibe, go in March.

  • Lock in your flight from Chattanooga Airport to Ontario International Airport for August if you'd like to explore Ontario during its warmest month. Expect temperatures of between 16ºC (61ºF) and 36ºC (97ºF).

  • Look for cheap tickets from CHA to ONT in February if you like cooler conditions. Temperatures are at their lowest then, ranging between 4ºC (39ºF) and 24ºC (75ºF) on average.

Explore more of the United States

  • You've visited Ontario, now it's time to explore more of the United States. Journey around 56 kilometres west to Los Angeles to check off its must-visit sights. From Hollywood Sign to Universal Studios Hollywood and Hollywood Bowl, there's plenty to keep you on the go.

  • If you want to check out another major destination in the United States, consider San Diego, roughly 153 kilometres south of Ontario. San Diego Zoo, San Diego Balboa Park and USS Midway Museum are highlights.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.