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$876+ Cheap flights from Ontario (ONT) to Kolkata (CCU)

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 12/6. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — CCU
Nov 19 — Nov 261
Wed 11/19
Wed 11/26
1 adult, Economy
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Find flight deals from Ontario to Kolkata

Cheapest flights from Ontario to Kolkata
Explore the most affordable flight options available from Ontario to Kolkata. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 20, 2025.

This Trip.com deal was found by Cheapflights users on 10/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2611:50 pmONT - CCU
2 stops35h 35mMultiple Airlines
Sat 11/812:30 amCCU - ONT
2 stops29h 50mMultiple Airlines
Deal found 10/19$1,035
This Trip.com deal was found by Cheapflights users on 10/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2510:50 pmONT - CCU
2 stops35h 35mMultiple Airlines
Sun 12/1412:30 amCCU - ONT
2 stops29h 50mMultiple Airlines
Deal found 10/19$1,048
This Trip.com deal was found by Cheapflights users on 10/18. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2312:10 amONT - CCU
2 stops59h 15mMultiple Airlines
Sat 11/812:30 amCCU - ONT
2 stops29h 50mMultiple Airlines
Deal found 10/18$1,135
This Trip.com deal was found by Cheapflights users on 10/20. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1510:50 pmONT - CCU
2 stops35h 35mMultiple Airlines
Sat 11/2912:30 amCCU - ONT
2 stops53h 50mMultiple Airlines
Deal found 10/20$1,423
This Trip.com deal was found by Cheapflights users on 10/20. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1410:50 pmONT - CCU
2 stops35h 35mMultiple Airlines
Sat 11/2912:30 amCCU - ONT
2 stops53h 50mMultiple Airlines
Deal found 10/20$1,435
This Trip.com deal was found by Cheapflights users on 10/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2010:50 pmONT - CCU
2 stops36h 20mMultiple Airlines
Sat 12/201:55 amCCU - ONT
2 stops28h 25mMultiple Airlines
Deal found 10/19$1,674
This oojo deal was found by Cheapflights users on 10/19. 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.
Tue 11/183:08 pmONT - CCU
2 stops45h 17mQatar Airways
Wed 12/173:25 amCCU - ONT
2 stops47h 57mQatar Airways
Deal found 10/19$2,112
This Justfly.com deal was found by Cheapflights users on 10/19. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/610:47 amONT - CCU
2 stops25h 38mQatar Airways
Fri 11/143:25 amCCU - ONT
2 stops28h 26mQatar Airways
Deal found 10/19$2,161
This oojo deal was found by Cheapflights users on 10/18. 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.
Tue 11/252:59 pmONT - CCU
2 stops45h 26mQatar Airways
Sun 12/143:25 amCCU - ONT
2 stops52h 22mQatar Airways
Deal found 10/18$2,200
This oojo deal was found by Cheapflights users on 10/19. 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.
Thu 11/202:52 pmONT - CCU
2 stops45h 33mQatar Airways
Fri 12/193:25 amCCU - ONT
2 stops47h 57mQatar Airways
Deal found 10/19$2,270
This FlightHub deal was found by Cheapflights users on 10/20. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/36:00 amONT - CCU
2 stops30h 25mQatar Airways
Sun 12/213:25 amCCU - ONT
2 stops28h 21mQatar Airways
Deal found 10/20$2,295
This FlightHub deal was found by Cheapflights users on 10/19. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/76:00 amONT - CCU
2 stops30h 25mQatar Airways
Thu 12/113:25 amCCU - ONT
2 stops33h 34mQatar Airways
Deal found 10/19$2,310

Cheap flight deals from Ontario to Kolkata

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Kolkata (CCU). 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 October 20, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,048
(Trip.com)

One-way from

$876
(FlightHub)

Popular in

December

Cheapest in

March

Average price

$1,141
Provider with most accurate pricing for Ontario-Kolkata Netaji S. Chandra flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Kolkata Netaji S. Chandra flights.
Search Deals
From Ontario to Kolkata Netaji S. Chandra
Search Deals
One-way flight from Ontario to Kolkata Netaji S. Chandra
Search Deals
Highest demand for flights based on searches. 11% potential increase in price ($168 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Kolkata 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 October 20, 2025.
Use the filters below to find and compare flights from Ontario to Kolkata that are best for you.

Fly from

Ontario

Fly to

Kolkata

Route

Depart

Return

Price

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Tue 11/25

10:50 pm-11:55 pm

2 stops35h 35m

Kolkata Netaji S. Chandra

Sun 12/14

12:30 am-4:50 pm

2 stops29h 50m

$1,048

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Sat 11/15

10:50 pm-11:55 pm

2 stops35h 35m

Kolkata Netaji S. Chandra

Sat 11/29

12:30 am-4:50 pm

2 stops53h 50m

$1,423

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Fri 11/14

10:50 pm-11:55 pm

2 stops35h 35m

Kolkata Netaji S. Chandra

Sat 11/29

12:30 am-4:50 pm

2 stops53h 50m

$1,435

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Thu 11/20

10:50 pm-12:40 am

2 stops36h 20m

Kolkata Netaji S. Chandra

Sat 12/20

1:55 am-4:50 pm

2 stops28h 25m

$1,674

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Thu 2/26

11:05 am-1:55 am

2 stops25h 20m

Kolkata Netaji S. Chandra

Wed 3/25

3:25 am-10:02 pm

2 stops31h 07m

$1,981

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Sun 3/1

3:05 pm-1:55 am

2 stops45h 20m

Kolkata Netaji S. Chandra

Fri 4/3

3:50 am-10:02 pm

2 stops30h 42m

$2,006

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Tue 11/18

3:08 pm-1:55 am

2 stops45h 17m

Kolkata Netaji S. Chandra

Wed 12/17

3:25 am-1:52 pm

2 stops47h 57m

$2,112

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Thu 11/6

10:47 am-1:55 am

2 stops25h 38m

Kolkata Netaji S. Chandra

Fri 11/14

3:25 am-6:21 pm

2 stops28h 26m

$2,161

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Tue 11/25

2:59 pm-1:55 am

2 stops45h 26m

Kolkata Netaji S. Chandra

Sun 12/14

3:25 am-6:17 pm

2 stops52h 22m

$2,200

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Thu 11/20

2:52 pm-1:55 am

2 stops45h 33m

Kolkata Netaji S. Chandra

Fri 12/19

3:25 am-1:52 pm

2 stops47h 57m

$2,270

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/18

Showing 1-10 of 24 results
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  • Most accurate provider: When it comes to deals on Ontario-Kolkata flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Kolkata flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Kolkata flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Kolkata flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Kolkata flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Ontario to Kolkata

Have a flexible travel schedule? Discover the best time to fly to Kolkata 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 Kolkata

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

Currently, March is the cheapest month in which you can book a flight from Ontario to Kolkata (average of $769). Flying from Ontario to Kolkata in December is currently the most expensive (average of $1,276). 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 Kolkata. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Ontario to Kolkata?

    For as low as $1,981, Qatar Airways can have you in Kolkata from Ontario in 25h 20m. The distance between Ontario and Kolkata is about 8155 mi.

  • Can I find deals for flights from Ontario to Kolkata that include hotel bookings?

    Yes. In addition to deals on Ontario to Kolkata flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Ontario to Kolkata?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Ontario to Kolkata.

  • Can I find deals for business class flights from Ontario to Kolkata?

    Yes. Cheapflights offers flight deals from Ontario to Kolkata 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 Kolkata?

    Currently, March is the cheapest month in which you can book a flight from Ontario to Kolkata (average of $769). Flying from Ontario to Kolkata in December is currently the most expensive (average of $1,276). 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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