ONT - IST

$458 Find Cheap Flights from Ontario to Istanbul

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Ontario to Istanbul departing on 4/26. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Istanbul Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Istanbul, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Ontario to Istanbul, as well as popular online travel agencies
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41.299.237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$579
United Airlines
Mon 4/6Wed 4/29
ONT - IST • 2 stops
Cheapest one-way
$458
American Airlines
Sun 4/26
ONT - IST • 2 stops
Top airlines
United Airlines
Cheapest • from $579 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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We hope you love your trip to Istanbul!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Ontario to Istanbul (ONT-IST)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Ontario to Istanbul that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Ontario to Istanbul

Mon, Apr 6 - Wed, Apr 29
United Airlines Logo
1:27 pm - 9:25 pm
ONT
-
IST
21h 58m
2 stops
United Airlines Logo
5:40 am - 9:50 pm
IST
-
ONT
26h 10m
2 stops
$579United Airlines
Sun, Apr 12 - Mon, Apr 27
Lufthansa Logo
5:10 am - 5:00 pm
ONT
-
IST
25h 50m
2 stops
Lufthansa Logo
1:55 pm - 6:02 pm
IST
-
ONT
38h 07m
2 stops
$614Lufthansa
Mon, Apr 6 - Mon, Apr 20
United Airlines Logo
1:27 pm - 9:25 pm
ONT
-
IST
21h 58m
2 stops
United Airlines Logo
5:50 am - 5:47 pm
IST
-
ONT
21h 57m
2 stops
$629United Airlines
Mon, Apr 13 - Wed, Apr 22
United Airlines Logo
1:27 pm - 9:25 pm
ONT
-
IST
21h 58m
2 stops
United Airlines Logo
5:40 am - 5:47 pm
IST
-
ONT
22h 07m
2 stops
$654United Airlines
Mon, Mar 16 - Mon, Mar 23
United Airlines Logo
1:40 pm - 10:45 pm
ONT
-
IST
23h 05m
2 stops
United Airlines Logo
6:30 am - 12:18 pm
IST
-
ONT
39h 48m
2 stops
$684United Airlines
Thu, Apr 9 - Thu, Apr 23
United Airlines Logo
1:34 pm - 9:35 pm
ONT
-
IST
22h 01m
2 stops
United Airlines Logo
5:40 am - 9:50 pm
IST
-
ONT
26h 10m
2 stops
$704United Airlines
Wed, Mar 18 - Tue, Mar 24
Lufthansa Logo
1:40 pm - 10:45 pm
ONT
-
IST
23h 05m
2 stops
Lufthansa Logo
6:30 am - 10:57 pm
IST
-
ONT
26h 27m
2 stops
$728Lufthansa
Tue, Apr 14 - Tue, Apr 28
United Airlines Logo
11:05 am - 4:55 pm
ONT
-
IST
19h 50m
2 stops
United Airlines Logo
5:40 am - 6:02 pm
IST
-
ONT
22h 22m
2 stops
$729United Airlines
Mon, Mar 30 - Thu, Apr 9
United Airlines Logo
7:00 am - 9:25 pm
ONT
-
IST
28h 25m
2 stops
United Airlines Logo
5:40 am - 12:20 pm
IST
-
ONT
40h 40m
2 stops
$735United Airlines
Mon, Mar 16 - Mon, Mar 30
United Airlines Logo
1:50 pm - 5:55 pm
ONT
-
IST
18h 05m
2 stops
United Airlines Logo
1:55 pm - 9:50 pm
IST
-
ONT
41h 55m
2 stops
$750United Airlines
Booking Insights

KAYAK's insights & trends for Ontario to Istanbul flights

Get data-powered insights and trends into flights from Ontario to Istanbul to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Ontario to Istanbul?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Ontario to Istanbul were found on United Airlines ($579) and Lufthansa ($614).

Find deals

Good to know

Cheapest flight$458
Flight from Ontario to Istanbul

When to book flights from Ontario to Istanbul

Are your dates flexible? Find out the best times to travel from Ontario to Istanbul based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Ontario to Istanbul flights

  • What is the cheapest flight from Ontario to Istanbul Airport?

    In the last 3 days, the lowest price for a flight from Ontario to Istanbul Airport was $458 for a one-way ticket and $579 for a round-trip.

  • Do I need a passport to fly between Ontario and Istanbul?

    A passport is required to fly from Ontario to Istanbul.

  • Which aircraft models fly most regularly from Ontario to Istanbul?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Ontario to Istanbul?

    Star Alliance is the only airline alliance operating flights between Ontario and Istanbul.

  • How does KAYAK find such low prices on flights from Ontario to Istanbul?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Ontario to Istanbul.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Ontario to Istanbul?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Istanbul from Ontario is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Ontario to Istanbul?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Istanbul with an airline and back to Ontario with another airline. Booking your flights between Ontario and IST can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Ontario to Istanbul?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Istanbul from Ontario up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Ontario to Istanbul

 
See real verified KAYAK customer reviews for airlines flying from Ontario to Istanbul. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Ontario to Istanbul? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9296 reviews
7.3Comfort
7.1Entertainment
7.7Boarding
8.1Crew
6.6Food
Airline reviews

Very disappointing given gate agent behavior. Filed a formal complaint with United.

2.0 MediocreAnnie Caroline, Feb 2026
SFO - LAX
Read more United Airlines reviews

Very disappointing given gate agent behavior. Filed a formal complaint with United.

Crew was great (professional, attentive, prompt). Snacks for 4 hrs flight is deplorable.

Flight delayed. WiFi connectivity very poor if not existant. Last minute arrival forced me to run to catch my connection.

Terrible. No customer service, no food, no drinks on a 6 hour premier economy booking.

Check-in and in-flight staff were better than average. The seat was a fair size but too hard and not enough padding. The cushion/pillow provided is poor (thin and seems to be disposable ,it provides no effective cushioning or support). Food was OK-ish but no choice of inflight snacks and no easy place to get drinks other than water (I could ask for juice by intruding into the staff area at the back of the plane) Entertainment was very good actually. Overall better than I expected from a US-based airline (sorry!) but compared to ANA or Singapore it was so-so. (I live in Japan so they are my comparative airlines)

Terrible. Our first time back on United for 10 years, the seats in Polaris class are small and uncomfortable. They have squished too many people in to get more $$$. The staff are not friendly and not wanting to accommodate. I asked for two salads rather than a main meal and was advised no we wont do that. Then asked what I would like for breakfast and given something else anyway. I will not be flying United International anytime soon.

The food was terrible this time. Otherwise pleasant, quiet, on-time.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

The flight crew where really good. Better then the crew from BNE to SFO

Food should be changed in menu Many muslims travels in this airlime they need to add one Halal meal

Everything you need to know for your flight from Ontario to Istanbul

Information on your arrival and departure airports

Ontario (ONT)
Istanbul (IST)