How long is the flight from Ontario to Kolkata?

For as low as ₹ 165,676, Qatar Airways can have you in Kolkata from Ontario in 27h. The distance from Ontario to Kolkata is about 13124 km.

In terms of precipitation, rainfall in Kolkata ranges from 7.0 - 356.0 inches per month. August is typically the wettest month, when rainfall can reach 356.0 mm. December is typically the driest time to visit Kolkata when rainfall is around 7.0 mm.

If weather is an important factor for your trip to Kolkata, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 31.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 20.0 C).

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Kolkata as you normally would.

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 holiday 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.

₹ 65,943+ Cheap Flights from Ontario to Kolkata

Cheap flight deals from Ontario to Kolkata

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

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 5 October 2026.

Mon 9/1122:50 -

2 stops36h 20m

Thu 12/1101:55 -

2 stops28h 40m

Deal found 1/10₹ 143,149

Thu 5/1122:50 -

2 stops60h 20m

Sat 14/1101:55 -

2 stops52h 40m

Deal found 5/10₹ 146,422

Sat 7/1122:50 -

2 stops36h 20m

Sat 5/1201:55 -

2 stops28h 40m

Deal found 4/10₹ 148,540

Thu 3/1222:50 -

2 stops27h 55m

Sun 13/1201:55 -

2 stops28h 40m

Deal found 3/10₹ 152,584

Sat 10/1023:05 -

2 stops29h 20m

Fri 16/1000:30 -

3 stops58h 10m

Deal found 5/10₹ 164,713

Tue 27/1010:25 -

2 stops27h 00m

Tue 10/1103:25 -

2 stops28h 47m

Deal found 5/10₹ 165,676

Mon 5/1006:02 -

2 stops31h 38m

Sat 10/1003:40 -

2 stops32h 32m

Deal found 3/10₹ 165,772

Mon 5/1006:02 -

2 stops31h 38m

Fri 9/1003:40 -

2 stops26h 50m

Deal found 4/10₹ 166,639

Tue 10/1122:50 -

2 stops27h 55m

Sat 14/1101:55 -

2 stops28h 40m

Deal found 3/10₹ 177,228

Wed 7/1000:10 -

3 stops35h 30m

Fri 16/1021:40 -

3 stops32h 50m

Deal found 4/10₹ 178,865

Thu 8/1011:13 -

2 stops26h 27m

Thu 29/1003:25 -

2 stops30h 16m

Deal found 2/10₹ 179,923

Find flight deals from Ontario to Kolkata

Round-trip from	₹ 143,149
One-way from	₹ 65,943
Popular in	June
Cheapest in	September
Average price	₹ 102,910

9/11-12/11
4 total stops
65h 00m total
Ontario to Kolkata

Search Deals

18/10-31/12
2 total stops
46h 10m total
Ontario to Kolkata

Search Deals

Highest demand for flights based on searches. 24% potential increase in price (₹ 4,444,478 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 6% potential price decrease (₹ 838,284 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

OntarioKolkata

ONT Ontario - CCU Kolkata Netaji S. Chandra

ONTCCU

Ontario

Sun 18/10

23:05-00:10

2 stops36h 35m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-10:30

Nonstop0h 00m

₹ 68,253

OntarioKolkata

ONT Ontario - CCU Kolkata Netaji S. Chandra

ONTCCU

Ontario

Thu 10/12

22:50-16:15

2 stops27h 55m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-10:30

Nonstop0h 00m

₹ 132,656

OntarioKolkata

ONT Ontario - CCU Kolkata Netaji S. Chandra

ONTCCU

Ontario

Wed 4/11

06:30-01:55

3 stops29h 55m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-10:30

Nonstop0h 00m

₹ 136,314

OntarioKolkata

ONT Ontario - CCU Kolkata Netaji S. Chandra

ONTCCU

Ontario

Sat 9/1

22:50-00:40

2 stops36h 20m

Kolkata Netaji S. Chandra

Sat 23/1

17:30-17:05

2 stops37h 05m

₹ 143,149

Fastest return journey

OntarioKolkata

ONT Ontario - CCU Kolkata Netaji S. Chandra

ONTCCU

Ontario

Wed 9/12

10:32-01:55

2 stops25h 53m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-10:30

Nonstop0h 00m

₹ 157,878

OntarioKolkata

ONT Ontario - CCU Kolkata Netaji S. Chandra

ONTCCU

Ontario

Fri 19/3

23:50-00:40

2 stops36h 20m

Kolkata Netaji S. Chandra

Sat 27/3

02:00-18:00

2 stops28h 30m

₹ 163,269

OntarioKolkata

ONT Ontario - CCU Kolkata Netaji S. Chandra

ONTCCU

Ontario

Tue 27/10

10:25-01:55

2 stops27h 00m

Kolkata Netaji S. Chandra

Tue 10/11

03:25-18:42

2 stops28h 47m

₹ 165,676

OntarioKolkata

ONT Ontario - CCU Kolkata Netaji S. Chandra

ONTCCU

Ontario

Fri 11/12

17:01-01:55

2 stops43h 24m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-10:30

Nonstop0h 00m

₹ 175,591

OntarioKolkata

ONT Ontario - CCU Kolkata Netaji S. Chandra

ONTCCU

Ontario

Tue 10/11

22:50-16:15

2 stops27h 55m

Kolkata Netaji S. Chandra

Sat 14/11

01:55-17:05

2 stops28h 40m

₹ 177,228

OntarioKolkata

ONT Ontario - CCU Kolkata Netaji S. Chandra

ONTCCU

Ontario

Wed 27/1

11:36-01:55

2 stops24h 49m

Kolkata Netaji S. Chandra

Sat 30/1

03:25-18:51

2 stops28h 56m

₹ 179,346

Flights are sorted by cheapest return flights first.

Deals found on 1/10

Showing 1-10 of 18 resultsSorted by cheapest first

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.

ONT-CCU

Estimated return 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.

Related info for your journey

How long is the flight from Ontario to Kolkata?
For as low as ₹ 165,676, Qatar Airways can have you in Kolkata from Ontario in 27h. The distance from Ontario to Kolkata is about 13124 km.
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 holiday 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.

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When you search for this flight from Ontario to Kolkata, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

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Can Cheapflights find flights from Ontario to Kolkata with no change fees?

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Cheap flights from Ontario to Kolkata from ₹ 65,943

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 18/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Ontario to Kolkata

Cheapest flights from Ontario to KolkataExplore 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 5 October 2026.

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 5 October 2026.

Best flights from Ontario to KolkataDiscover carefully curated flight deals from Ontario to Kolkata that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 October 2026.

Discover carefully curated flight deals from Ontario to Kolkata that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 October 2026.

Last-minute flights from Ontario to KolkataDiscover last-minute flight deals from Ontario to Kolkata. Data last updated 5 October 2026 and is based on user searches.

Discover last-minute flight deals from Ontario to Kolkata. Data last updated 5 October 2026 and is based on user searches.

One-way flights from Ontario to KolkataSearch for one-way flight options from Ontario to Kolkata. Find affordable one-way fares based on user searches. Data last updated 5 October 2026.

Search for one-way flight options from Ontario to Kolkata. Find affordable one-way fares based on user searches. Data last updated 5 October 2026.

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Best time to book a flight from Ontario to Kolkata

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Related info for your journey

How long is the flight from Ontario to Kolkata?

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

How can I find direct flights from Ontario to Kolkata?

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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Ontario to Kolkata

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Complete your trip

Complete your trip to Kolkata by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to West Bengal

Book a non-stop flight to one of these other cities located in West Bengal.

Search flights from Ontario to Kolkata by cabin class

Find flights from Ontario to Kolkata, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to Kolkata

Explore flights to Kolkata departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 5 October 2026.

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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 5 October 2026.

Best flights from Ontario to Kolkata
Discover carefully curated flight deals from Ontario to Kolkata that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 5 October 2026.

Last-minute flights from Ontario to Kolkata
Discover last-minute flight deals from Ontario to Kolkata. Data last updated 5 October 2026 and is based on user searches.

One-way flights from Ontario to Kolkata
Search for one-way flight options from Ontario to Kolkata. Find affordable one-way fares based on user searches. Data last updated 5 October 2026.