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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 8/23. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — IST
Jul 5 — Jul 121
Sun 7/5
Sun 7/12
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 June 5, 2026.

This Delta deal was found by Cheapflights users on 6/1. 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 10/289:55 am
ONT
-
IST
2 stops22h 00m
Delta
Fri 11/67:15 am
IST
-
ONT
2 stops27h 33m
Delta
Deal found 6/1$704
This Delta deal was found by Cheapflights users on 6/3. 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 11/49:55 am
ONT
-
IST
2 stops21h 00m
Delta
Fri 11/137:15 am
IST
-
ONT
2 stops22h 03m
Delta
Deal found 6/3$705
This Delta deal was found by Cheapflights users on 6/1. 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 10/289:55 am
ONT
-
IST
2 stops22h 00m
Delta
Sat 11/75:55 pm
IST
-
ONT
2 stops33h 17m
Delta
Deal found 6/1$754
This Delta deal was found by Cheapflights users on 6/2. 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 11/67:00 am
ONT
-
IST
2 stops23h 55m
Delta
Fri 11/137:15 am
IST
-
ONT
2 stops27h 33m
Delta
Deal found 6/2$755
This Delta deal was found by Cheapflights users on 6/3. 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 10/245:05 pm
ONT
-
IST
2 stops38h 50m
Delta
Sun 11/15:55 pm
IST
-
ONT
2 stops39h 19m
Delta
Deal found 6/3$760
This Delta deal was found by Cheapflights users on 6/3. 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 stops33h 17m
Delta
Deal found 6/3$804
This Delta deal was found by Cheapflights users on 6/2. 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
Sat 11/75:55 pm
IST
-
ONT
2 stops33h 17m
Delta
Deal found 6/2$805
This Delta deal was found by Cheapflights users on 6/1. 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 10/291:00 pm
ONT
-
IST
2 stops18h 55m
Delta
Sun 11/87:15 am
IST
-
ONT
2 stops19h 57m
Delta
Deal found 6/1$867
This Delta deal was found by Cheapflights users on 6/3. 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 10/309:55 am
ONT
-
IST
2 stops21h 00m
Delta
Fri 11/67:15 am
IST
-
ONT
2 stops19h 57m
Delta
Deal found 6/3$886
This Delta deal was found by Cheapflights users on 6/2. 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 8/1412:00 pm
ONT
-
IST
2 stops29h 30m
Delta
Fri 8/214:25 am
IST
-
ONT
2 stops29h 09m
Delta
Deal found 6/2$904
This KAYAK deal was found by Cheapflights users on 6/2. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/241:33 pm
ONT
-
IST
2 stops22h 12m
Lufthansa
Thu 12/106:30 am
IST
-
ONT
2 stops25h 51m
Lufthansa
Deal found 6/2$905
This United Airlines deal was found by Cheapflights users on 6/1. 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 10/271:00 pm
ONT
-
IST
2 stops23h 45m
United Airlines
Thu 2/186:30 am
IST
-
ONT
2 stops25h 51m
United Airlines
Deal found 6/1$912

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 June 5, 2026.

Round-trip from

$704
(Delta)

One-way from

$544
(Delta)

Popular in

June

Cheapest in

February

Average price

$1,407
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 June 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 June 5, 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 8/22

5:05 pm-3:30 am

2 stops48h 25m

Istanbul

Sun 8/30

6:00 am-12:05 pm

2 stops40h 05m

$1,015

OntarioIstanbul

ONT - SAW

ONTSAW

Ontario

Wed 6/24

6:20 am-9:00 pm

2 stops28h 40m

Istanbul Sabiha Gokcen

Fri 9/25

8:50 am-10:26 pm

2 stops23h 36m

$1,069

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Thu 8/20

7:05 am-1:20 am

2 stops32h 15m

Istanbul

Fri 8/28

5:20 pm-4:24 pm

2 stops33h 04m

$1,126

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Sun 8/23

12:00 pm-6:20 am

2 stops32h 20m

Istanbul

Mon 9/21

8:05 pm-7:03 pm

2 stops32h 58m

$1,129

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Fri 8/7

6:00 am-3:30 am

2 stops35h 30m

Istanbul

Fri 8/14

6:00 am-9:52 pm

2 stops25h 52m

$1,137
Quickest round-trip

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Wed 7/22

1:18 pm-4:55 pm

2 stops17h 37m

Istanbul

Thu 8/20

1:55 pm-10:59 pm

2 stops19h 04m

$1,141

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Thu 8/13

7:00 am-1:00 pm

2 stops20h 00m

Istanbul

Mon 8/31

5:50 am-6:11 pm

2 stops22h 21m

$1,250

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Fri 8/21

1:18 pm-4:55 pm

2 stops17h 37m

Istanbul

Sun 8/30

1:55 pm-10:59 pm

2 stops19h 04m

$1,317

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Mon 8/3

11:51 pm-12:35 pm

2 stops50h 44m

Istanbul

Thu 8/13

1:50 pm-10:35 pm

2 stops42h 45m

$1,423

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Mon 8/17

11:50 pm-12:35 pm

2 stops50h 45m

Istanbul

Fri 8/28

1:50 pm-10:05 pm

2 stops42h 15m

$1,443

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/2

Showing 1-10 of 45 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, KLM, and Qatar Airways fly from Ontario to Istanbul in about 28h 40m. The time it takes to get you to your destination can typically vary by up to 19h 45m. The distance between Ontario and Istanbul is about 6842 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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