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Cheap Flights from Tucson International to Ontario International

Compare Tucson International 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 Tucson International to Ontario International

Looking for a cheap last-minute deal or the best return flight from Tucson International to Ontario International? Find the lowest prices on one-way and return tickets right here.
Ontario.R 1,718 per passenger.Departing Fri, 13 Feb.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Tucson International on Fri, 13 Feb, arriving in Ontario International.Price includes taxes and charges.From R 1,718, select.
Ontario.R 1,976 per passenger.Departing Thu, 29 Jan.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Tucson International on Thu, 29 Jan, arriving in Ontario International.Price includes taxes and charges.From R 1,976, select.
Ontario.R 2,437 per passenger.Departing Mon, 2 Mar.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Tucson International on Mon, 2 Mar, arriving in Ontario International.Price includes taxes and charges.From R 2,437, select.
Ontario.R 2,522 per passenger.Departing Wed, 22 Apr.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Tucson International on Wed, 22 Apr, arriving in Ontario International.Price includes taxes and charges.From R 2,522, select.
Ontario.R 2,522 per passenger.Departing Tue, 12 May.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Tucson International on Tue, 12 May, arriving in Ontario International.Price includes taxes and charges.From R 2,522, select.
Ontario.R 2,898 per passenger.Departing Mon, 1 Jun.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Tucson International on Mon, 1 Jun, arriving in Ontario International.Price includes taxes and charges.From R 2,898, select.
Ontario.R 2,898 per passenger.Departing Mon, 24 Aug.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Tucson International on Mon, 24 Aug, arriving in Ontario International.Price includes taxes and charges.From R 2,898, select.

Find the cheapest month to fly from Tucson International to Ontario International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Tucson International to Ontario International flights are currently cheapest in February.
Jan
from R 1,972
Feb
from R 1,714
Mar
from R 2,433
Apr
from R 2,518
May
from R 2,518
Jun
from R 2,893
Jul
Find prices
Aug
from R 2,893
Sep
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Oct
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Nov
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Dec
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Tucson International to Ontario International: Alternative routes

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

Ontario International

4km from central Ontario
Closest
from R 1,714
Search flights

San Bernardino Norton AFB

39km from central Ontario
Search flights

Santa Ana John Wayne

48km from central Ontario
from R 1,302
Search flights

Long Beach Municipal

54km from central Ontario
from R 2,664
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Hawthorne

65km from central Ontario
Search flights

Burbank

67km from central Ontario
from R 2,836
Search flights

Los Angeles International

71km from central Ontario
Cheapest
from R 934
Search flights

Tucson to Ontario: Flight information

The things to know before you go.
Cheapest flight foundR 1,714
Cheapest month to flyFebruary

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

The best price we found for a return flight from Tucson International to Ontario International is R 4,613. 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 Tucson International to Ontario International. But we found flights with one or more stops from R 4,613.
As of January 2026, there are no flights flying from Tucson International to Ontario International.
The cheapest month to fly from Tucson International to Ontario International is usually February.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Tucson International Airport to Ontario International Airport on Saturday, 7 February 2026.
No airlines currently offer direct flights between Tucson International 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, Southwest Airlines offers the cheapest flight tickets to Ontario International.

Travelling from Tucson International Airport (TUS) to Ontario International Airport (ONT): what you need to know

  • Tucson and Ontario share the UTC-7 timezone. This means there's no time difference to adjust for.

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

  • Flying during a peak month like October? Major public holidays and other popular seasons can mean longer queues and delays at check-in and security. Play it safe and arrive up to four hours ahead of international flights and two hours before domestic departures.

How to find the cheapest flights from Tucson International Airport (TUS) to Ontario International Airport (ONT)

  • The lowest price we've seen for a one-way Tucson International Airport to Ontario International Airport flight is R 1,718. A round-trip ticket is currently R 4,613. Depending on the availability when you book, these fares may change.

  • It's usually smart to book in advance if you're hoping to get cheap tickets from TUS to ONT. That's because airlines change prices based on demand, which tends to rise closer to the date of departure.

  • Getting cheap flights from Tucson International Airport to Ontario International Airport is easy if you're flexible with your travel plans. Use the 'Whole month' tool to see the lowest prices across each month and score a great deal.

  • Spend less time searching for cheap flights from TUS to ONT by setting up a Price Alert. You'll receive an email or notification on the app when a lower fare becomes available.

  • Tailor your flights using filters. Select your arrival and departure times, airlines and total journey duration. You can also sort results by 'Best,' 'Cheapest' or 'Fastest' flights from Tucson International Airport to Ontario International Airport.

Handy information about Tucson International Airport (TUS)

  • TUS's address is 7005 South Plumer Ave..

  • 84.8% of flights leaving Tucson International Airport arrive at their destination according to schedule. With its strong on-time performance, delays are unlikely when taking off from TUS.

  • Central Tucson to Tucson International Airport is approximately 21 kilometres. Depending on traffic, it'll take you about 20 minutes to get there if you're catching a cab, ride-sharing or driving.

  • You can expect a trip time of around 3 hours 5 minutes on public transport.

  • Looking for a convenient hotel close to TUS? If you're boarding an early flight from Tucson International Airport to Ontario International Airport, these stays will put you moments from your departure lounge:

Arriving at Ontario International Airport (ONT)

Getting from Ontario International Airport (ONT) to central Ontario

  • ONT is located at 2900 E. Airport Drive.

  • From Ontario International Airport, Ontario is approximately 6 kilometres away. It takes around 10 minutes to get to the centre driving.

  • It takes roughly 1 hour 30 minutes if you're using public transport.

When to fly to Ontario International Airport (ONT)

  • The quietest month for a flight from Tucson International Airport to Ontario International Airport is May, while August is the most popular. Pick the best time to go to Ontario based on whether you prefer a more relaxed vibe or a faster pace.

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

  • For cooler conditions, look for a cheap ticket from TUS to ONT in January. Average temperatures are between 4ºC (39ºF) and 23ºC (73ºF) then.

Explore more of United States

  • You've visited Ontario, now it's time to discover other corners of United States. Journey about 56 kilometres west to Los Angeles to tick off its leading attractions. From Griffith Observatory to The Broad and La Brea Tar Pits & Museum, there's plenty to keep you on the go.

  • Around 153 kilometres south of Ontario, San Diego is another favourite stop in United States. Start your sightseeing at San Diego Zoo, USS Midway Museum and SeaWorld San Diego.

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