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$592+ 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 6/7. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — IST
May 6 — May 131
Tue 5/6
Tue 5/13
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 May 1, 2025.

Round-trip from

$966
(United Airlines)

One-way from

$592
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$1,237
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 ($228 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($37 potential savings vs. average RT price).
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Average for round-trip flights in May 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 May 1, 2025.

This United Airlines deal was found by Cheapflights users on 4/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/181:55 pmONT - IST
2 stops21h 50mUnited Airlines
Wed 12/36:30 amIST - ONT
2 stops24h 47mUnited Airlines
Deal found 4/29$776
This Delta deal was found by Cheapflights users on 4/30. 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.
Mon 6/22:55 pmONT - IST
2 stops26h 30mDelta
Mon 6/94:20 amIST - ONT
2 stops22h 50mDelta
Deal found 4/30$1,051
This oojo deal was found by Cheapflights users on 4/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/276:00 amONT - SAW
2 stops51h 05mQatar Airways
Mon 11/108:10 pmSAW - ONT
2 stops33h 07mQatar Airways
Deal found 4/30$1,062
This oojo deal was found by Cheapflights users on 4/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/276:00 amONT - IST
2 stops50h 40mQatar Airways
Mon 11/108:10 pmIST - ONT
2 stops37h 27mQatar Airways
Deal found 4/30$1,068
This oojo deal was found by Cheapflights users on 4/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2711:00 pmONT - IST
1 stop20h 30mTurkish Airlines
Sat 10/117:15 amIST - ONT
1 stop24h 26mTurkish Airlines
Deal found 4/30$1,131
This Etihad Airways deal was found by Cheapflights users on 4/29. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/410:40 pmONT - IST
2 stops52h 25mEtihad Airways
Tue 6/37:30 amIST - ONT
2 stops47h 41mEtihad Airways
Deal found 4/29$1,179
This Turkish Airlines deal was found by Cheapflights users on 4/29. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/46:00 amONT - IST
1 stop25h 00mMultiple Airlines
Thu 6/52:55 pmIST - ONT
1 stop17h 51mMultiple Airlines
Deal found 4/29$1,275
This British Airways deal was found by Cheapflights users on 4/30. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2111:00 amONT - IST
2 stops19h 25mBritish Airways
Sat 12/67:35 amIST - ONT
2 stops25h 02mBritish Airways
Deal found 4/30$1,365
This American Airlines deal was found by Cheapflights users on 4/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/24:35 pmONT - IST
2 stops21h 55mAmerican Airlines
Mon 6/98:25 amIST - ONT
3 stops23h 13mAmerican Airlines
Deal found 4/30$1,422
This Booking.com deal was found by Cheapflights users on 4/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/711:59 pmONT - SAW
2 stops27h 51mBritish Airways
Mon 6/303:00 pmSAW - ONT
2 stops41h 11mBritish Airways
Deal found 4/29$1,544
This KLM deal was found by Cheapflights users on 4/30. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/2411:56 amONT - IST
2 stops17h 59mKLM
Wed 12/315:10 amIST - ONT
2 stops22h 06mKLM
Deal found 4/30$1,663
This oojo deal was found by Cheapflights users on 4/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/1010:59 pmONT - SAW
2 stops37h 46mEtihad Airways
Mon 5/1912:10 amSAW - ONT
2 stops55h 01mEtihad Airways
Deal found 4/29$1,777

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 1, 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

Tue 7/29

5:05 am-5:00 pm

2 stops25h 55m

Istanbul

Tue 8/12

2:00 pm-5:43 pm

2 stops37h 43m

$1,040

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Sat 7/5

3:05 pm-3:25 am

2 stops26h 20m

Istanbul

Wed 7/23

4:20 am-10:47 pm

2 stops28h 27m

$1,051

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Sun 7/20

11:45 pm-5:30 am

1 stop19h 45m

Istanbul

Sat 8/16

6:45 pm-10:30 pm

1 stop37h 45m

$1,085

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Tue 5/6

10:59 pm-6:10 am

2 stops45h 11m

Istanbul

Tue 6/3

7:30 am-9:11 pm

2 stops47h 41m

$1,112

OntarioIstanbul

ONT - SAW

ONTSAW

Ontario

Sat 5/3

11:46 am-12:10 pm

2 stops38h 24m

Istanbul Sabiha Gokcen

Wed 5/21

1:35 pm-6:25 pm

2 stops38h 50m

$1,206

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Sat 5/3

11:46 am-11:55 am

2 stops38h 09m

Istanbul

Wed 5/21

8:05 pm-6:25 pm

2 stops32h 20m

$1,209

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Tue 5/20

6:00 am-5:00 pm

1 stop25h 00m

Istanbul

Tue 7/22

2:55 pm-12:13 am

1 stop19h 18m

$1,225

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Sun 5/18

5:05 am-5:10 pm

3 stops26h 05m

Istanbul

Sun 6/15

1:05 pm-12:31 pm

3 stops33h 26m

$1,452

OntarioIstanbul

ONT - SAW

ONTSAW

Ontario

Sat 6/7

11:59 pm-1:50 pm

2 stops27h 51m

Istanbul Sabiha Gokcen

Mon 6/30

3:00 pm-10:11 pm

2 stops41h 11m

$1,544

OntarioIstanbul

ONT - IST

ONTIST

Ontario

Mon 6/23

12:49 pm-6:50 pm

2 stops20h 01m

Istanbul

Wed 7/30

8:25 am-9:38 pm

2 stops23h 13m

$1,725

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

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 May 1, 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 May 1, 2025.
Peruse reviews from past customers who have flown with Delta, KLM and Qatar 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
7,934 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

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
7,934 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

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.
KLM
7.8
Good
1,334 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

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
3,563 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

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
1,203 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

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
8,696 reviews
Delta
8.0
Very good
7,934 reviews

Comfort

7.9

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

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 $966, 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 Delta and Qatar Airways - these airlines can fly you to your destination from $1,051 and $1,062, respectively.

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

    $621 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on Qatar Airways and Etihad Airways, with prices starting from $663 and $726, 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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Alternative routes for Ontario to Istanbul

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

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