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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 9/8. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — IST
May 4 — May 111
Mon 5/4
Mon 5/11
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 April 4, 2026.

This Delta deal was found by Cheapflights users on 3/30. 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.
Wed 8/127:00 am
ONT
-
IST
2 stops34h 30m
Delta
Fri 8/216:00 am
IST
-
ONT
2 stops22h 01m
Delta
Deal found 3/30$704
This Delta deal was found by Cheapflights users on 3/30. 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.
Wed 8/127:00 am
ONT
-
IST
2 stops34h 30m
Delta
Sun 8/234:25 am
IST
-
ONT
2 stops21h 49m
Delta
Deal found 3/30$754
This Delta deal was found by Cheapflights users on 3/30. 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 8/155:55 pm
ONT
-
IST
2 stops47h 35m
Delta
Sat 8/225:20 pm
IST
-
ONT
2 stops32h 54m
Delta
Deal found 3/30$760
This Delta deal was found by Cheapflights users on 3/31. 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 8/2712:00 pm
ONT
-
IST
2 stops29h 30m
Delta
Fri 9/46:00 am
IST
-
ONT
2 stops26h 40m
Delta
Deal found 3/31$845
This Delta deal was found by Cheapflights users on 3/31. 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 8/207:00 am
ONT
-
IST
2 stops34h 30m
Delta
Fri 8/286:00 am
IST
-
ONT
2 stops22h 01m
Delta
Deal found 3/31$858
This Delta deal was found by Cheapflights users on 3/30. 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.
Wed 10/212:00 pm
ONT
-
IST
2 stops27h 30m
Delta
Fri 10/304:50 am
IST
-
ONT
2 stops21h 22m
Delta
Deal found 3/30$886
This Delta deal was found by Cheapflights users on 4/2. 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.
Thu 4/3011:53 am
ONT
-
IST
2 stops27h 27m
Delta
Thu 5/74:25 am
IST
-
ONT
2 stops21h 52m
Delta
Deal found 4/2$887
This Delta deal was found by Cheapflights users on 3/30. 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.
Wed 9/97:00 am
ONT
-
IST
2 stops34h 30m
Delta
Mon 9/215:20 pm
IST
-
ONT
2 stops38h 36m
Delta
Deal found 3/30$898
This Delta deal was found by Cheapflights users on 3/31. 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 8/67:05 am
ONT
-
IST
2 stops34h 25m
Delta
Sun 8/165:20 pm
IST
-
ONT
2 stops38h 36m
Delta
Deal found 3/31$905
This Delta deal was found by Cheapflights users on 3/30. 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.
Fri 8/77:05 am
ONT
-
IST
2 stops34h 25m
Delta
Sun 8/165:20 pm
IST
-
ONT
2 stops40h 24m
Delta
Deal found 3/30$906
This Iberia deal was found by Cheapflights users on 4/2. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/212:22 pm
ONT
-
IST
2 stops24h 03m
Multiple Airlines
Wed 11/47:35 am
IST
-
ONT
2 stops25h 48m
Multiple Airlines
Deal found 4/2$911
This United Airlines deal was found by Cheapflights users on 4/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/167:00 am
ONT
-
IST
2 stops24h 05m
United Airlines
Tue 11/246:30 am
IST
-
ONT
2 stops22h 17m
United Airlines
Deal found 4/3$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 April 4, 2026.

Round-trip from

$704
(Delta)

One-way from

$527
(Delta)

Popular in

June

Cheapest in

February

Average price

$911
From Ontario to Istanbul
Search Deals
One-way flight from Ontario to Istanbul
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($230 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 April 4, 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

Wed 8/12

7:00 am-3:30 am

2 stops34h 30m

Istanbul

Fri 8/21

6:00 am-6:01 pm

2 stops22h 01m

$704

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Thu 8/6

7:05 am-3:30 am

2 stops34h 25m

Istanbul

Sun 8/16

5:20 pm-9:56 pm

2 stops38h 36m

$905

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Wed 5/6

1:30 pm-9:25 pm

2 stops21h 55m

Istanbul

Wed 8/26

1:55 pm-10:58 pm

2 stops19h 03m

$945

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Wed 4/29

1:38 pm-4:55 pm

2 stops17h 17m

Istanbul

Sun 5/3

5:50 am-5:52 pm

2 stops22h 02m

$995

OntarioIstanbul

ONT - SAW

ONTSAW

Ontario

Wed 4/22

5:05 pm-9:00 pm

2 stops17h 55m

Istanbul Sabiha Gokcen

Wed 5/6

8:50 am-9:00 pm

2 stops22h 10m

$1,056

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Wed 4/22

6:00 am-7:20 am

2 stops39h 20m

Istanbul

Thu 6/4

8:05 pm-6:47 pm

2 stops32h 42m

$1,157

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Sat 8/8

6:30 am-1:00 pm

2 stops20h 30m

Istanbul

Fri 8/14

1:55 pm-6:19 pm

2 stops38h 24m

$1,164

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Thu 4/30

7:59 pm-5:05 pm

1 stop35h 06m

Istanbul

Thu 5/7

2:55 pm-7:05 pm

1 stop38h 10m

$1,177

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Sun 8/2

1:18 pm-9:35 pm

2 stops22h 17m

Istanbul

Sat 8/15

5:50 am-6:11 pm

2 stops22h 21m

$1,184

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Wed 5/13

12:06 pm-5:05 pm

1 stop18h 59m

Istanbul

Wed 5/27

6:40 pm-8:47 pm

1 stop36h 07m

$1,189

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/3

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

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

Currently, January is the cheapest month in which you can book a flight from Ontario to Istanbul (average of $513). Flying from Ontario to Istanbul in July is currently the most expensive (average of $889). 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 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, United Airlines, and KLM fly from Ontario to Istanbul in about 17h 55m. The time it takes to get you to your destination can typically vary by up to 16h 35m. 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.

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

    Currently, January is the cheapest month in which you can book a flight from Ontario to Istanbul (average of $513). Flying from Ontario to Istanbul in July is currently the most expensive (average of $889). 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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