ONT

R11 785 Find Cheap Flights to Ontario – Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest return flight
R17 442
Typical prices: R15 942-R23 021
United Airlines
Tue 25/12Mon 1/1
JNB - ONT • 2 stops
Cheapest one-way flight
R11 785
Typical prices: R9 642-R16 518
Qatar Airways
Fri 23/11
CPT - ONT • 2 stops
When to travel
Cheapest • 17% price drop
Most popular
Good to know
+1
Good to know
+1
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We hope you enjoy your trip to Ontario!
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Flight Deals

Cheap Flights to Ontario

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals to Ontario

Fri, Dec 25 - Fri, Jan 1
United Airlines Logo
22:00 - 21:00JNB  Johannesburg OR Tambo-ONT Ontario
33h 00m2 stops Newark Denver Intl
United Airlines Logo
5:00 - 18:35ONT  Ontario-JNB Johannesburg OR Tambo
27h 35m2 stops Denver Intl Newark
R17 442United Airlines
Wed, Oct 14 - Mon, Oct 26
Delta Logo
23:15 - 21:54JNB  Johannesburg OR Tambo-ONT Ontario
31h 39m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson
Delta Logo
7:07 - 19:10ONT  Ontario-JNB Johannesburg OR Tambo
27h 03m1 stop Atlanta Hartsfield-Jackson
R17 475Delta
Wed, Oct 14 - Mon, Oct 26
Delta Logo
23:15 - 22:43JNB  Johannesburg OR Tambo-ONT Ontario
32h 28m2 stops Amsterdam Schiphol Seattle/Tacoma Intl
Delta Logo
6:20 - 19:10ONT  Ontario-JNB Johannesburg OR Tambo
27h 50m2 stops Seattle/Tacoma Intl Atlanta Hartsfield-Jackson
R17 475Delta
Sun, Nov 1 - Sun, Nov 8
Delta Logo
20:50 - 17:12CPT  Cape Town Intl-ONT Ontario
30h 22m2 stops Atlanta Hartsfield-Jackson Seattle/Tacoma Intl
Delta Logo
7:07 - 18:35ONT  Ontario-CPT Cape Town Intl
25h 28m1 stop Atlanta Hartsfield-Jackson
R17 702Delta
Sun, Nov 1 - Sun, Nov 8
Delta Logo
20:50 - 11:06CPT  Cape Town Intl-ONT Ontario
24h 16m1 stop Atlanta Hartsfield-Jackson
Delta Logo
7:07 - 18:35ONT  Ontario-CPT Cape Town Intl
25h 28m1 stop Atlanta Hartsfield-Jackson
R17 702Delta
Sun, Nov 1 - Sun, Nov 8
Delta Logo
20:50 - 17:12CPT  Cape Town Intl-ONT Ontario
30h 22m2 stops Atlanta Hartsfield-Jackson Seattle/Tacoma Intl
Delta Logo
6:20 - 22:40ONT  Ontario-CPT Cape Town Intl
30h 20m2 stops Seattle/Tacoma Intl Amsterdam Schiphol
R18 759Delta
Wed, Oct 21 - Sun, Oct 25
British Airways Logo
21:15 - 23:52JNB  Johannesburg OR Tambo-ONT Ontario
35h 37m2 stops London Heathrow Dallas/Fort Worth
British Airways Logo
23:59 - 10:25ONT  Ontario-JNB Johannesburg OR Tambo
49h 26m2 stops Dallas/Fort Worth London Heathrow
R19 198British Airways
Wed, Oct 21 - Sun, Oct 25
British Airways Logo
18:50 - 22:53CPT  Cape Town Intl-ONT Ontario
37h 03m2 stops London Heathrow Phoenix Sky Harbor Intl
British Airways Logo
14:22 - 12:10ONT  Ontario-CPT Cape Town Intl
60h 48m2 stops Dallas/Fort Worth London Heathrow
R19 425British Airways
Wed, Oct 21 - Sun, Oct 25
British Airways Logo
18:50 - 22:53CPT  Cape Town Intl-ONT Ontario
37h 03m2 stops London Heathrow Phoenix Sky Harbor Intl
British Airways Logo
14:22 - 12:10ONT  Ontario-CPT Cape Town Intl
60h 48m2 stops Dallas/Fort Worth London Heathrow
R19 474British Airways
Tue, Sep 29 - Sat, Oct 31
United Airlines Logo
22:00 - 20:31JNB  Johannesburg OR Tambo-ONT Ontario
31h 31m2 stops Newark San Francisco
United Airlines Logo
6:59 - 18:35ONT  Ontario-JNB Johannesburg OR Tambo
26h 36m2 stops Chicago O'Hare Intl Newark
R21 604United Airlines
Booking Insights

Price, demand, and travel trends for South Africa to Ontario flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights from South Africa to Ontario with more confidence.

What is the cheapest day to fly to Ontario?

Saturday is the cheapest day to fly to Ontario at R16 629 return on average over the past 12 months on KAYAK. Tuesday is the most expensive at R46 068.

What is the cheapest time of day to fly to Ontario?

Evening flights to Ontario are the cheapest at R16 613 return on average. Night flights are the most expensive at R19 165.

Key details for flights to Ontario

Low season

April

Cheapest flight

R11 785
Most popular time to fly (4% more expensive on average)
Flights from Cape Town to Ontario

When to book flights to Ontario

Are your dates flexible? Find out the best times to travel to Ontario based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your questions about flights to Ontario, answered

Find helpful route details based on KAYAK data, including flight times, airports, airlines, and booking questions.

  • Where can I fly from to get the cheapest fares to Ontario?

    Based on fares booked in the past 5 days, the cheapest flights to Ontario are from:
    • Johannesburg, from R17 442 return

  • How do I know if a flight to Ontario is a good deal?

    A good deal on a flight to Ontario is around R15 942 return. This fare is in the lowest 25% of return flight prices searched on KAYAK, averaged across the cities most often searched as origins by KAYAK users.

Your guide to booking Ontario flights

From booking to airport arrival, find tips to help you plan your flight with more confidence.
  • For flights to Ontario, recent KAYAK data shows that stronger deals tend to be around R15 942 return. If you see a fare below that threshold, it's a good deal – book before the price climbs back up.
  • If you can choose when to go, aim to travel to Ontario in November. Return fares historically average R15 719 that month – typically the cheapest month to travel based on the last 12 months.
  • Before you book:

    • Check the route's typical price range so you can spot a deal.
    • Confirm baggage fees and seat selection costs on budget carriers.
    • Verify whether you need any travel documents beyond an ID.
    • Pick a departure airport, since your nearest may not be the cheapest origin.
  • Shift your departure to afternoon to save up to R2 552 per return. Afternoon flights to Ontario average R16 613 compared to R19 165 for evening flights. See the time-of-day chart above for the full breakdown.

Reviews of the top airline flying to Ontario

 
Need help choosing which airline to fly with to Ontario? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7,4
United AirlinesOverall score based on 10232 reviews
7,7Boarding
8,1Crew
6,7Food
7,3Comfort
7,1Entertainment
Airline reviews

Delayed too much. 1.5 hrs in the airport and another 1 hr in the runway. Got too late in the night. There was no proper food available.

6,0 GoodAiswarya, Sept 2026
Read more United Airlines reviews

Delayed too much. 1.5 hrs in the airport and another 1 hr in the runway. Got too late in the night. There was no proper food available.

Job well done, being treated for good and helping a lot . thanks you so much till will meet against.

For the Singapore to CA flight, nearly 16 hours long was miserable. We sat on the tarmac for one hour to burn fuel. The flight attendant girls were mean. They would yell at people who stood up to try to stretch their legs. One time the drinks came thru and the lady judged us and made a comment about how much sugar was in apple juice when we ordered it once. She was rude and inappropriate. The entire flight was frustrating. You'd think a long haul like that the airline would try to make you comfortable. I just don't understand why the ladies were so snappy. I have never experienced rude flight attendants like that. It was the longest flight I've had to sit on before. We were not impressed. Raymond on the other hand was amazing! By far the best person working that flight!

premium economy is expensive but worth it for the comfort and food on a long flight

Even though the incoming flight was delayed by 20 minutes they managed to get us to SFO 15 minutes early.

Boarding, time to take off, in flight offerings, and staff were all great. I recommend using UA for this short flight.

Good experience. Staff was friendly and helpful. Flight was slightly delayed due to airport construction, but they still arrived on time.

This is the worst airline I’ve ever been on in my life and I’ve been probably on 75% of them. I said 15 years ago I would never go on United again. I was an idiot. I booked a flight with them from Las Vegas to San Francisco and of course they screwed that up and cost me a day flying all over the world trying to get to Thailand. My luggage was gone for 35 hours all because they couldn’t make their route on time

The flight was excellent. Their was no service as we boarded, the flight attendants spent about 30 minutes just taking and not really caring that the cabin was about 80 degrees and did not offered any beverage to first class passengers or any passenger. The flight from DEN to ONT is not long but not under an hour, we received one drink and bag of chips if you were lucky. I was in first class…. I did leave my hat on the plane and it only took less than five minutes for a United rep to locate and bring it to me.

Airline did not explain reasons why flight was delayed two hours. Explanations were badly needed and rarely provided. Problem seemed to clearly be the airline’s fault and not the fault of the weather or airport.

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