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$527+ 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 9/13. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — IST
Jun 30 — Jul 71
Tue 6/30
Tue 7/7
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 May 31, 2026.

This Delta deal was found by Cheapflights users on 5/29. 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.
Mon 11/29:55 am
ONT
-
IST
2 stops21h 00m
Delta
Wed 11/187:15 am
IST
-
ONT
2 stops19h 57m
Delta
Deal found 5/29$704
This Delta deal was found by Cheapflights users on 5/29. 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 10/299:55 am
ONT
-
IST
2 stops22h 00m
Delta
Fri 11/67:15 am
IST
-
ONT
2 stops27h 33m
Delta
Deal found 5/29$754
This Delta deal was found by Cheapflights users on 5/28. 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.
Wed 8/129:43 am
ONT
-
IST
2 stops31h 47m
Delta
Fri 8/216:00 am
IST
-
ONT
2 stops38h 42m
Delta
Deal found 5/28$759
This Delta deal was found by Cheapflights users on 5/28. 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.
Sat 11/75:05 pm
ONT
-
IST
2 stops37h 50m
Delta
Sun 11/155:55 pm
IST
-
ONT
2 stops35h 23m
Delta
Deal found 5/28$760
This Delta deal was found by Cheapflights users on 5/30. 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.
Sat 11/1412:00 pm
ONT
-
IST
2 stops42h 55m
Delta
Sun 11/225:55 pm
IST
-
ONT
2 stops39h 19m
Delta
Deal found 5/30$761
This Delta deal was found by Cheapflights users on 5/29. 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.
Mon 11/29:55 am
ONT
-
IST
2 stops21h 00m
Delta
Fri 11/137:15 am
IST
-
ONT
2 stops27h 33m
Delta
Deal found 5/29$767
This Delta deal was found by Cheapflights users on 5/28. 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 8/1311:45 am
ONT
-
IST
2 stops29h 45m
Delta
Fri 8/216:00 am
IST
-
ONT
2 stops38h 42m
Delta
Deal found 5/28$796
This Delta deal was found by Cheapflights users on 5/28. 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.
Sat 10/311:00 pm
ONT
-
IST
2 stops18h 55m
Delta
Fri 11/65:55 pm
IST
-
ONT
2 stops34h 22m
Delta
Deal found 5/28$804
This Delta deal was found by Cheapflights users on 5/30. 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.
Sat 8/155:05 pm
ONT
-
IST
2 stops48h 25m
Delta
Sun 8/235:20 pm
IST
-
ONT
2 stops34h 01m
Delta
Deal found 5/30$807
This Delta deal was found by Cheapflights users on 5/28. 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.
Fri 8/146:00 am
ONT
-
IST
2 stops35h 30m
Delta
Fri 8/216:00 am
IST
-
ONT
2 stops38h 42m
Delta
Deal found 5/28$809
This Delta deal was found by Cheapflights users on 5/30. 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 8/1310:00 pm
ONT
-
IST
2 stops43h 30m
Delta
Sun 8/235:20 pm
IST
-
ONT
2 stops34h 01m
Delta
Deal found 5/30$851
This KLM deal was found by Cheapflights users on 5/27. 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.
Tue 9/17:05 am
ONT
-
SAW
2 stops24h 00m
KLM
Mon 9/148:50 am
SAW
-
ONT
2 stops23h 50m
KLM
Deal found 5/27$1,063

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 May 31, 2026.

Round-trip from

$704
(Delta)

One-way from

$527
(Delta)

Popular in

June

Cheapest in

February

Average price

$1,192
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 ($290 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($40 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 May 31, 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 - IST

ONTIST

Ontario

Sat 8/15

5:05 pm-3:30 am

2 stops48h 25m

Istanbul

Sun 8/23

5:20 pm-5:21 pm

2 stops34h 01m

$807

OntarioIstanbul

ONT - SAW

ONTSAW

Ontario

Thu 10/29

6:00 am-12:10 pm

2 stops44h 10m

Istanbul Sabiha Gokcen

Thu 11/12

1:40 pm-2:04 pm

2 stops35h 24m

$1,102

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Fri 8/14

7:13 pm-9:15 pm

3 stops40h 02m

Istanbul

Sat 8/22

5:50 am-6:12 pm

2 stops22h 22m

$1,109

OntarioIstanbul

ONT - SAW

ONTSAW

Ontario

Thu 10/29

6:00 am-12:10 pm

2 stops44h 10m

Istanbul Sabiha Gokcen

Fri 11/6

1:40 pm-6:28 pm

2 stops39h 48m

$1,129

OntarioIstanbul

ONT - SAW

ONTSAW

Ontario

Tue 11/3

12:00 pm-12:10 pm

2 stops37h 10m

Istanbul Sabiha Gokcen

Sun 11/15

1:40 pm-10:23 pm

2 stops43h 43m

$1,143

OntarioIstanbul

ONT - SAW

ONTSAW

Ontario

Sun 11/1

12:00 pm-12:10 pm

2 stops37h 10m

Istanbul Sabiha Gokcen

Sun 11/15

1:40 pm-10:23 pm

2 stops43h 43m

$1,143

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Tue 9/1

11:50 pm-1:00 pm

1 stop27h 10m

Istanbul

Fri 9/11

1:05 am-8:13 pm

1 stop29h 08m

$1,162

OntarioIstanbul

ONT - SAW

ONTSAW

Ontario

Sat 10/31

6:00 am-12:10 pm

2 stops44h 10m

Istanbul Sabiha Gokcen

Fri 11/6

1:40 pm-6:28 pm

2 stops39h 48m

$1,169

OntarioIstanbul

ONT - SAW

ONTSAW

Ontario

Fri 10/30

6:00 am-12:10 pm

2 stops44h 10m

Istanbul Sabiha Gokcen

Fri 11/6

1:40 pm-6:28 pm

2 stops39h 48m

$1,169

OntarioIstanbul

ONT - SAW

ONTSAW

Ontario

Thu 10/29

6:00 am-12:10 pm

2 stops44h 10m

Istanbul Sabiha Gokcen

Sat 11/7

1:40 pm-6:28 pm

2 stops39h 48m

$1,169

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/29

Showing 1-10 of 47 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 Delta, Qatar Airways, and United Airlines fly from Ontario to Istanbul in about 22h 07m. The time it takes to get you to your destination can typically vary by up to 26h 18m. 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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