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$424+ 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 7/29. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — IST
Jul 5 — Jul 121
Sat 7/5
Sat 7/12
1 adult, Economy
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Cheap 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 30, 2025.

Round-trip from

$738
(United Airlines)

One-way from

$424
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,472
From Ontario to Istanbul
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One-way flight from Ontario to Istanbul
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Highest demand for flights based on searches. 14% potential increase in price ($185 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($35 potential savings vs. average RT price).
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Average for round-trip flights in June 2025
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Find 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 30, 2025.

This United Airlines deal was found by Cheapflights users on 6/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/31:40 pmONT - IST
2 stops22h 05mUnited Airlines
Wed 12/176:30 amIST - ONT
2 stops22h 16mUnited Airlines
Deal found 6/27$738
This KLM deal was found by Cheapflights users on 6/29. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2411:29 amONT - IST
2 stops18h 26mKLM
Sun 12/75:10 amIST - ONT
2 stops22h 04mKLM
Deal found 6/29$768
This British Airways deal was found by Cheapflights users on 6/28. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/44:45 pmONT - IST
2 stops21h 45mBritish Airways
Mon 8/258:25 amIST - ONT
2 stops23h 14mBritish Airways
Deal found 6/28$913
This oojo deal was found by Cheapflights users on 6/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/912:00 pmONT - SAW
2 stops32h 50mQatar Airways
Mon 7/146:05 pmSAW - ONT
2 stops40h 10mQatar Airways
Deal found 6/28$1,029
This oojo deal was found by Cheapflights users on 6/27. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/1712:00 pmONT - IST
2 stops32h 20mQatar Airways
Tue 9/308:05 pmIST - ONT
2 stops32h 23mQatar Airways
Deal found 6/27$1,035
This oojo deal was found by Cheapflights users on 6/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2110:56 pmONT - IST
2 stops45h 19mEtihad Airways
Thu 10/27:30 amIST - ONT
2 stops47h 59mEtihad Airways
Deal found 6/28$1,064
This British Airways deal was found by Cheapflights users on 6/27. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1211:59 pmONT - SAW
2 stops51h 51mBritish Airways
Sun 11/163:50 pmSAW - ONT
2 stops40h 51mBritish Airways
Deal found 6/27$1,376

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 30, 2025.
Use the filters below to find and compare flights from Ontario to Istanbul that are best for you.

Fly from

Ontario

Fly to

Istanbul

Route

Depart

Return

Price

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Wed 12/3

1:40 pm-10:45 pm

2 stops22h 05m

Istanbul

Wed 12/17

6:30 am-5:46 pm

2 stops22h 16m

$738

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Mon 11/24

11:29 am-4:55 pm

2 stops18h 26m

Istanbul

Sun 12/7

5:10 am-4:14 pm

2 stops22h 04m

$768

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Mon 8/4

4:45 pm-12:30 am

2 stops21h 45m

Istanbul

Mon 8/25

8:25 am-9:39 pm

2 stops23h 14m

$913

OntarioIstanbul

ONT - SAW

ONTSAW

Ontario

Mon 9/1

11:39 am-6:45 pm

2 stops45h 06m

Istanbul Sabiha Gokcen

Wed 9/10

8:05 pm-11:59 pm

2 stops37h 54m

$1,032

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Wed 7/30

6:00 am-6:20 am

2 stops38h 20m

Istanbul

Tue 9/30

8:05 pm-6:36 pm

2 stops32h 31m

$1,035

OntarioIstanbul

ONT - SAW

ONTSAW

Ontario

Wed 11/12

11:59 pm-2:50 pm

2 stops51h 51m

Istanbul Sabiha Gokcen

Sun 11/16

3:50 pm-9:41 pm

2 stops40h 51m

$1,376

OntarioIstanbul

ONT - SAW

ONTSAW

Ontario

Sat 9/13

10:56 pm-10:45 pm

2 stops37h 49m

Istanbul Sabiha Gokcen

Mon 9/29

12:10 am-9:29 pm

2 stops31h 19m

$1,622

OntarioIstanbul

ONT - SAW

ONTSAW

Ontario

Tue 7/29

10:03 am-5:10 pm

3 stops45h 07m

$424

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Tue 7/29

7:00 am-10:25 am

2 stops41h 25m

$436

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Wed 7/9

12:00 pm-7:05 am

2 stops33h 05m

$586

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/28

Showing 1-10 of 17 results
1
2

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, November is the cheapest month in which you can book a flight from Ontario to Istanbul (average of $923). Flying from Ontario to Istanbul in June is currently the most expensive (average of $1,362). 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.

What is the cheapest time of day to fly from ONT to IST?

Find hourly flight availability from Ontario to Istanbul. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 30, 2025.

It’s typically best to fly out from Ontario to Istanbul at noon. Doing so could potentially save you 8% on the flight price compared to flying in the morning, which is usually more expensive.

Reviews of airlines servicing Istanbul

Get insights into the airlines that provide service to Istanbul. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Istanbul. Reviews last updated June 30, 2025.
Peruse reviews from past customers who have flown with Delta, KLM, and Qatar Airways from Ontario to Istanbul to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,969 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,969 reviews
Delta
8.0
Very good
7,969 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,366 reviews
Delta
8.0
Very good
7,969 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Qatar Airways
7.4
Good
3,596 reviews
Delta
8.0
Very good
7,969 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Etihad Airways
7.4
Good
1,224 reviews
Delta
8.0
Very good
7,969 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,852 reviews
Delta
8.0
Very good
7,969 reviews

Entertainment

7.9

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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. 1 airline has flights to Istanbul from Ontario on a regular basis.

  • What are the cheapest airlines flying from Ontario to Istanbul round-trip?

    Currently priced at $738, United Airlines will fly you from Ontario to Istanbul and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from KLM and British Airways - these airlines can fly you to your destination from $768 and $913, respectively.

  • What are the cheapest airlines to fly from Ontario to Istanbul one-way?

    $586 is the cheapest one-way deal found within the past few days, from Qatar Airways. You may also be able to find cheap deals on United Airlines and Delta, with prices starting from $623 and $633, respectively.

  • 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, November is the cheapest month in which you can book a flight from Ontario to Istanbul (average of $923). Flying from Ontario to Istanbul in June is currently the most expensive (average of $1,362). 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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Top airline flying from Ontario to Istanbul

Discover the top airline that operate flights from Ontario to Istanbul. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,195Average$1,295FlexibilityNo cancel feeOn-time69%

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