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$544+ Cheap flights from Ontario (ONT) to Istanbul

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 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — IST
Aug 20 — Aug 271
Thu 8/20
Thu 8/27
1 adult, Economy
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Cheap flight deals from Ontario to Istanbul

Cheapest flights from Ontario to Istanbul
Explore the most affordable flight options available from Ontario to Istanbul. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 21, 2026.

This United Airlines deal was found by Cheapflights users on 7/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/11:52 pm
ONT
-
IST
2 stops21h 53m
United Airlines
Tue 11/106:30 am
IST
-
ONT
2 stops24h 36m
United Airlines
Deal found 7/16$910
This United Airlines deal was found by Cheapflights users on 7/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/301:13 pm
ONT
-
IST
2 stops46h 32m
United Airlines
Fri 12/116:30 am
IST
-
ONT
2 stops27h 36m
United Airlines
Deal found 7/19$917
This United Airlines deal was found by Cheapflights users on 7/20. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1311:10 am
ONT
-
IST
2 stops24h 05m
United Airlines
Tue 11/106:30 am
IST
-
ONT
2 stops24h 36m
United Airlines
Deal found 7/20$945
This KLM deal was found by Cheapflights users on 7/20. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1112:00 pm
ONT
-
IST
2 stops17h 55m
Multiple Airlines
Wed 11/187:15 am
IST
-
ONT
2 stops19h 57m
Multiple Airlines
Deal found 7/20$957
This British Airways deal was found by Cheapflights users on 7/19. 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 11/1610:30 am
ONT
-
IST
2 stops20h 00m
British Airways
Tue 11/247:35 am
IST
-
ONT
2 stops22h 30m
British Airways
Deal found 7/19$976
This Air France deal was found by Cheapflights users on 7/18. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/112:00 pm
ONT
-
IST
2 stops18h 45m
Air France
Sat 12/127:15 am
IST
-
ONT
2 stops19h 57m
Air France
Deal found 7/18$990
This oojo deal was found by Cheapflights users on 7/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/276:02 am
ONT
-
IST
2 stops38h 18m
Qatar Airways
Mon 10/58:05 pm
IST
-
ONT
2 stops31h 58m
Qatar Airways
Deal found 7/17$995
This oojo deal was found by Cheapflights users on 7/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:02 am
ONT
-
IST
2 stops43h 53m
Qatar Airways
Thu 9/178:05 pm
IST
-
ONT
2 stops37h 19m
Qatar Airways
Deal found 7/17$998
This oojo deal was found by Cheapflights users on 7/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/86:02 am
ONT
-
IST
2 stops44h 13m
Qatar Airways
Tue 9/221:45 pm
IST
-
ONT
2 stops39h 18m
Qatar Airways
Deal found 7/19$1,000
This oojo deal was found by Cheapflights users on 7/20. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/216:02 am
ONT
-
IST
2 stops43h 53m
Qatar Airways
Mon 9/288:05 pm
IST
-
ONT
2 stops32h 58m
Qatar Airways
Deal found 7/20$1,005
This United Airlines deal was found by Cheapflights users on 7/18. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/204:07 pm
ONT
-
IST
2 stops19h 08m
United Airlines
Tue 11/36:30 am
IST
-
ONT
2 stops24h 36m
United Airlines
Deal found 7/18$1,016
This Air France deal was found by Cheapflights users on 7/21. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/239:45 am
ONT
-
IST
2 stops20h 35m
Multiple Airlines
Fri 11/67:15 am
IST
-
ONT
2 stops20h 09m
Multiple Airlines
Deal found 7/21$1,017

Find flight deals from Ontario to Istanbul

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Istanbul (TR5). 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 July 21, 2026.

Round-trip from

$910
(United Airlines)

One-way from

$544
(oojo)

Popular in

June

Cheapest in

February

Average price

$1,294
From Ontario to Istanbul
Search Deals
One-way flight from Ontario to Istanbul
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($294 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($35 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Istanbul 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 July 21, 2026.
Use the filters below to find and compare flights from Ontario to Istanbul that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioIstanbul

ONT - SAW

ONTSAW

Ontario

Sat 9/12

12:17 pm-9:00 pm

2 stops22h 43m

Istanbul Sabiha Gokcen

Fri 9/25

8:50 am-10:40 pm

2 stops23h 50m

$1,107

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Tue 8/18

9:01 am-4:55 pm

2 stops21h 54m

Istanbul

Tue 8/25

5:40 am-6:11 pm

2 stops22h 31m

$1,133

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Tue 9/8

12:12 pm-12:15 pm

2 stops38h 03m

Istanbul

Mon 9/14

8:05 pm-1:25 pm

2 stops27h 20m

$1,147

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Thu 9/10

12:12 pm-12:15 pm

2 stops38h 03m

Istanbul

Sun 9/27

8:05 pm-7:03 pm

2 stops32h 58m

$1,164

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Mon 8/17

11:59 pm-5:30 am

1 stop19h 31m

Istanbul

Thu 9/17

7:20 am-8:13 pm

1 stop22h 53m

$1,175

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Fri 9/4

12:00 pm-6:20 am

2 stops32h 20m

Istanbul

Sun 9/13

8:05 pm-7:03 pm

2 stops32h 58m

$1,201

OntarioIstanbul

ONT - SAW

ONTSAW

Ontario

Mon 8/10

1:06 pm-9:00 pm

2 stops21h 54m

Istanbul Sabiha Gokcen

Thu 10/15

8:50 am-10:43 pm

2 stops23h 53m

$1,202

OntarioIstanbul

ONT - SAW

ONTSAW

Ontario

Wed 8/12

1:06 pm-5:05 pm

2 stops17h 59m

Istanbul Sabiha Gokcen

Fri 9/11

8:50 am-8:07 pm

2 stops21h 17m

$1,202

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Wed 8/5

1:18 pm-9:25 pm

2 stops22h 07m

Istanbul

Wed 8/19

1:55 pm-8:01 pm

2 stops40h 06m

$1,214

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Fri 9/11

2:22 pm-6:20 am

2 stops29h 58m

Istanbul

Sun 9/27

8:05 pm-7:03 pm

2 stops32h 58m

$1,224

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/17

Showing 1-10 of 37 resultsSorted by cheapest first
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Best time to book a flight from Ontario to Istanbul

Have a flexible travel schedule? Discover the best time to fly to Istanbul from Ontario 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 Ontario to Istanbul

No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Ontario to Istanbul. 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 from for flights from Ontario to Istanbul?

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

  • How long is the flight from Ontario to Istanbul?

    Airlines like KLM, United Airlines, and Qatar Airways fly from Ontario to Istanbul in about 21h 54m. The time it takes to get you to your destination can typically vary by up to 16h 09m. The distance between Ontario and Istanbul is about 6805 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

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

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

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

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

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

See more FAQs

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