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Ontario

$431+ Cheap flights from Istanbul (IST) to Ontario (ONT)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
IST — ONT
Feb 25 — Mar 41
Wed 2/25
Wed 3/4
1 adult, Economy
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Cheap flight deals from Istanbul to Ontario

Cheapest flights from Istanbul to Ontario
Explore the most affordable flight options available from Istanbul to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 26, 2026.

This American Airlines deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/287:35 am
IST
-
ONT
2 stops26h 14m
American Airlines
Sat 3/285:02 pm
ONT
-
IST
2 stops21h 53m
American Airlines
Deal found 1/26$564
This British Airways deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/47:35 am
IST
-
ONT
2 stops26h 14m
British Airways
Sun 3/811:58 pm
ONT
-
IST
2 stops38h 07m
British Airways
Deal found 1/25$567
This Iberia deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/278:10 am
IST
-
ONT
2 stops26h 49m
Multiple Airlines
Sun 3/16:00 am
ONT
-
IST
2 stops24h 25m
Multiple Airlines
Deal found 1/26$568
This British Airways deal was found by Cheapflights users on 1/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/238:15 am
IST
-
ONT
2 stops25h 34m
British Airways
Mon 3/22:39 pm
ONT
-
IST
2 stops22h 26m
British Airways
Deal found 1/24$602
This British Airways deal was found by Cheapflights users on 1/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/316:40 pm
IST
-
ONT
2 stops35h 05m
British Airways
Thu 3/195:02 pm
ONT
-
IST
2 stops22h 08m
British Airways
Deal found 1/24$638
This British Airways deal was found by Cheapflights users on 1/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/18:20 am
IST
-
ONT
2 stops24h 53m
British Airways
Sat 3/2111:58 pm
ONT
-
IST
2 stops38h 52m
British Airways
Deal found 1/25$641
This British Airways deal was found by Cheapflights users on 1/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/312:55 pm
IST
-
ONT
2 stops42h 18m
British Airways
Sat 3/2111:58 pm
ONT
-
IST
2 stops38h 52m
British Airways
Deal found 1/24$642
This Delta deal was found by Cheapflights users on 1/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/275:55 pm
IST
-
ONT
2 stops33h 20m
Delta
Wed 5/135:05 pm
ONT
-
IST
2 stops22h 15m
Delta
Deal found 1/24$658
This Delta deal was found by Cheapflights users on 1/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/294:50 am
IST
-
ONT
2 stops29h 01m
Delta
Wed 5/135:05 pm
ONT
-
IST
2 stops22h 15m
Delta
Deal found 1/24$664
This Delta deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/244:50 am
IST
-
ONT
2 stops22h 12m
Delta
Wed 3/46:00 am
ONT
-
IST
2 stops23h 55m
Delta
Deal found 1/26$674
This British Airways deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/158:10 am
IST
-
ONT
2 stops23h 49m
British Airways
Sun 5/3112:46 pm
ONT
-
IST
2 stops20h 29m
British Airways
Deal found 1/26$676
This British Airways deal was found by Cheapflights users on 1/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/18:20 am
IST
-
ONT
2 stops24h 53m
British Airways
Thu 3/195:02 pm
ONT
-
IST
2 stops22h 08m
British Airways
Deal found 1/24$677

Find flight deals from Istanbul to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Istanbul (IST) to Ontario (ONT). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 26, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$567
(British Airways)

One-way from

$431
(Iberia)

Popular in

August

Cheapest in

February

Average price

$753
Provider with most accurate pricing for Istanbul-Ontario flight deals.
Search Deals
Provider most trusted by Cheapflights users for Istanbul-Ontario flights.
Search Deals
From Istanbul to Ontario
Search Deals
One-way flight from Istanbul to Ontario
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($67 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Istanbul to Ontario that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 26, 2026.
Use the filters below to find and compare flights from Istanbul Airport to Ontario that are best for you.

Fly from

Istanbul

Fly to

Ontario

Route

Depart

Return

Price

IstanbulOntario

IST - ONT

ISTONT

Istanbul

Fri 3/6

8:10 am-9:24 pm

2 stops24h 14m

Ontario

Sat 3/28

5:02 pm-12:55 am

2 stops21h 53m

$564

IstanbulOntario

IST - ONT

ISTONT

Istanbul

Sun 3/1

8:20 am-10:07 pm

2 stops24h 47m

Ontario

Sat 3/28

5:02 pm-12:55 am

2 stops21h 53m

$564

IstanbulOntario

IST - ONT

ISTONT

Istanbul

Mon 3/2

8:15 am-10:49 pm

2 stops25h 34m

Ontario

Sat 3/28

5:02 pm-12:55 am

2 stops21h 53m

$564

IstanbulOntario

IST - ONT

ISTONT

Istanbul

Tue 3/3

7:35 am-7:45 pm

2 stops23h 10m

Ontario

Sat 3/28

5:02 pm-12:55 am

2 stops21h 53m

$564

IstanbulOntario

IST - ONT

ISTONT

Istanbul

Sat 5/16

7:55 pm-9:59 pm

2 stops36h 04m

Ontario

Sat 5/30

11:59 pm-12:25 am

2 stops38h 26m

$567

IstanbulOntario

IST - ONT

ISTONT

Istanbul

Wed 3/4

7:35 am-10:49 pm

2 stops26h 14m

Ontario

Sun 3/8

11:58 pm-12:05 am

2 stops38h 07m

$567

IstanbulOntario

IST - ONT

ISTONT

Istanbul

Mon 2/23

8:15 am-10:49 pm

2 stops25h 34m

Ontario

Mon 3/2

2:39 pm-12:05 am

2 stops22h 26m

$602

IstanbulOntario

IST - ONT

ISTONT

Istanbul

Thu 2/5

7:35 am-10:13 pm

2 stops25h 38m

Ontario

Mon 3/23

11:58 pm-1:00 am

2 stops39h 02m

$642

IstanbulOntario

IST - ONT

ISTONT

Istanbul

Thu 2/5

7:35 am-10:13 pm

2 stops25h 38m

Ontario

Sat 3/21

11:58 pm-12:50 am

2 stops38h 52m

$642

IstanbulOntario

IST - ONT

ISTONT

Istanbul

Thu 2/5

7:35 am-10:13 pm

2 stops25h 38m

Ontario

Tue 3/24

3:19 pm-1:00 am

2 stops23h 41m

$642

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Showing 1-10 of 19 results
1
2
  • Most accurate provider: When it comes to deals on Istanbul Airport-Ontario flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Istanbul Airport-Ontario flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Istanbul Airport-Ontario flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Istanbul Airport-Ontario flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Istanbul Airport-Ontario flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Istanbul to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Istanbul with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Istanbul Airport to Ontario

What is the cheapest month to book a flight from Istanbul Airport to Ontario?

Currently, February is the cheapest month in which you can book a flight from Istanbul Airport to Ontario (average of $446). Flying from Istanbul Airport to Ontario in July is currently the most expensive (average of $623). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Related info for your journey

Find useful and relevant information for your journey from Istanbul to Ontario. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Ontario from Istanbul?

    For a flight from Istanbul to Ontario, you will be flying into Ontario. Ontario (ONT) is just 3.1 mi from the center of the city. Ontario is the only Ontario airport and it handles 0 inbound flights from Istanbul per day. 0 airlines have flights to Ontario from Istanbul on a regular basis.

  • How long is the flight from Istanbul Airport to Ontario?

    American Airlines and British Airways can get you from Istanbul Airport to Ontario in just under 24h 14m. Your travel time can differ by up to 11h 50m. There are 6805 mi between Istanbul Airport and Ontario. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Istanbul to Ontario that include hotel bookings?

    Yes. In addition to deals on Istanbul to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Istanbul to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Istanbul to Ontario.

  • Can I find deals for business class flights from Istanbul to Ontario?

    Yes. Cheapflights offers flight deals from Istanbul to Ontario by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Istanbul Airport to Ontario?

    Currently, February is the cheapest month in which you can book a flight from Istanbul Airport to Ontario (average of $446). Flying from Istanbul Airport to Ontario in July is currently the most expensive (average of $623). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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