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$604+ 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 5/7. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — IST
Apr 20 — Apr 271
Sun 4/20
Sun 4/27
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 April 15, 2025.

Round-trip from

$785
(Delta)

One-way from

$604
(oojo)

Popular in

June

Cheapest in

February

Average price

$1,097
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. 17% potential increase in price ($238 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($38 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 15, 2025.

This Delta deal was found by Cheapflights users on 4/13. 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 8/97:00 amONT - IST
2 stops34h 25mDelta
Fri 8/224:20 amIST - ONT
2 stops29h 23mDelta
Deal found 4/13$785
This Gurufare deal was found by Cheapflights users on 4/14. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/13:00 pmONT - IST
2 stops24h 15mBritish Airways
Sat 11/157:35 amIST - ONT
2 stops27h 10mBritish Airways
Deal found 4/14$900
This United Airlines deal was found by Cheapflights users on 4/15. 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 9/141:42 pmONT - IST
2 stops21h 38mUnited Airlines
Thu 9/252:00 pmIST - ONT
2 stops18h 52mUnited Airlines
Deal found 4/15$976
This oojo deal was found by Cheapflights users on 4/14. 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 9/146:00 amONT - SAW
2 stops50h 45mQatar Airways
Sun 9/288:05 pmSAW - ONT
2 stops37h 54mQatar Airways
Deal found 4/14$1,057
This oojo deal was found by Cheapflights users on 4/14. 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 4/3011:46 amONT - IST
2 stops32h 34mQatar Airways
Thu 5/88:05 pmIST - ONT
2 stops31h 25mQatar Airways
Deal found 4/14$1,061
This oojo deal was found by Cheapflights users on 4/14. 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 7/1311:45 pmONT - IST
1 stop19h 45mTurkish Airlines
Sun 7/276:45 pmIST - ONT
1 stop37h 45mTurkish Airlines
Deal found 4/14$1,114
This Etihad Airways deal was found by Cheapflights users on 4/15. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1511:00 pmONT - IST
2 stops45h 10mEtihad Airways
Mon 9/292:10 pmIST - ONT
2 stops41h 31mEtihad Airways
Deal found 4/15$1,174
This Turkish Airlines deal was found by Cheapflights users on 4/13. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/276:00 amONT - IST
1 stop25h 00mMultiple Airlines
Sun 5/42:55 pmIST - ONT
1 stop19h 04mMultiple Airlines
Deal found 4/13$1,175
This Air Canada deal was found by Cheapflights users on 4/13. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/275:00 amONT - IST
3 stops26h 10mAir Canada
Sun 5/41:05 pmIST - ONT
3 stops33h 33mAir Canada
Deal found 4/13$1,415
This Air France deal was found by Cheapflights users on 4/14. 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.
Thu 10/161:00 pmONT - IST
2 stops17h 20mKLM
Tue 10/285:10 amIST - ONT
2 stops21h 04mKLM
Deal found 4/14$1,503
This oojo deal was found by Cheapflights users on 4/14. 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.
Sat 5/310:40 pmONT - SAW
2 stops38h 05mEtihad Airways
Sat 5/1712:10 amSAW - ONT
2 stops55h 01mEtihad Airways
Deal found 4/14$1,593
This Booking.com deal was found by Cheapflights users on 4/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1511:59 pmONT - SAW
2 stops29h 21mBritish Airways
Mon 5/193:00 pmSAW - ONT
2 stops37h 36mBritish Airways
Deal found 4/14$1,596

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 15, 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

Sat 8/9

7:00 am-3:25 am

2 stops34h 25m

Istanbul

Fri 8/22

4:20 am-11:43 pm

2 stops29h 23m

$785

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Sun 9/14

1:42 pm-9:20 pm

2 stops21h 38m

Istanbul

Thu 9/25

2:00 pm-10:52 pm

2 stops18h 52m

$976

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Wed 7/9

2:34 pm-12:25 am

2 stops23h 51m

Istanbul

Fri 7/18

8:20 am-10:06 pm

2 stops23h 46m

$1,051

OntarioIstanbul

ONT - SAW

ONTSAW

Ontario

Sun 9/14

6:00 am-6:45 pm

2 stops50h 45m

Istanbul Sabiha Gokcen

Sun 9/28

8:05 pm-11:59 pm

2 stops37h 54m

$1,057

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Wed 4/30

11:46 am-6:20 am

2 stops32h 34m

Istanbul

Thu 5/8

8:05 pm-5:30 pm

2 stops31h 25m

$1,061

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Sun 7/13

11:45 pm-5:30 am

1 stop19h 45m

Istanbul

Sun 7/27

6:45 pm-10:30 pm

1 stop37h 45m

$1,114

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Mon 9/15

11:00 pm-6:10 am

2 stops45h 10m

Istanbul

Mon 9/29

2:10 pm-9:41 pm

2 stops41h 31m

$1,174

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Sun 4/27

6:00 am-5:00 pm

1 stop25h 00m

Istanbul

Sun 5/4

2:55 pm-11:59 pm

1 stop19h 04m

$1,175

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Sun 4/27

5:00 am-5:10 pm

3 stops26h 10m

Istanbul

Sun 5/4

1:05 pm-12:38 pm

3 stops33h 33m

$1,415

OntarioIstanbul

ONT - SAW

ONTSAW

Ontario

Sat 5/3

10:40 pm-10:45 pm

2 stops38h 05m

Istanbul Sabiha Gokcen

Sat 5/17

12:10 am-9:11 pm

2 stops55h 01m

$1,593

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

Showing 1-10 of 23 results
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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, 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 $1,423). 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 April 15, 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.

Rainfall in Istanbul by month

Plan your trip to Istanbul by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Istanbul ranges from 0.4 - 3.9 inches per month. December is typically the wettest month, when rainfall can reach 3.9 in. July is typically the driest time to visit Istanbul when rainfall is around 0.4 in.

Temperature in Istanbul by month

Plan your trip to Istanbul by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Istanbul, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

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 April 15, 2025.
Peruse reviews from past customers who have flown with Delta, Qatar Airways and Etihad Airways from Ontario to Istanbul to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,918 reviews

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Overall

8.0

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
7,918 reviews
Delta
8.0
Very good
7,918 reviews

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Overall

8.0

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
3,551 reviews
Delta
8.0
Very good
7,918 reviews

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Overall

8.0

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
1,192 reviews
Delta
8.0
Very good
7,918 reviews

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Overall

8.0

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
8,658 reviews
Delta
8.0
Very good
7,918 reviews

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Overall

8.0

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.
Turkish Airlines
7.3
Good
3,760 reviews
Delta
8.0
Very good
7,918 reviews

Food

7.3

Crew

8.5

Boarding

8.2

Entertainment

7.9

Comfort

7.9

Overall

8.0

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 $785, Delta will fly you from Ontario to Istanbul and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and British Airways - these airlines can fly you to your destination from $976 and $1,051, respectively.

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

    $604 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 Delta and United Airlines, with prices starting from $622 and $641, 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 $1,423). 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.

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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 April 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$1,195Average$1,295FlexibilityNo cancel feeOn-time69%

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