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Cheap flights from Ontario to Kolkata from $537

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Kolkata departing on 10/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Ontario to Kolkata

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:30 pm - 11:50 pmONT  Ontario-CCU Kolkata Netaji S. Chandra
35h 50m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
1:00 am - 5:05 pmCCU  Kolkata Netaji S. Chandra-ONT Ontario
28h 35m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl
$1,054Multiple Airlines
Fri, Oct 16 - Fri, Oct 23
Multiple Airlines Logo
10:45 pm - 11:50 pmONT  Ontario-CCU Kolkata Netaji S. Chandra
36h 35m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
12:50 am - 3:55 pmCCU  Kolkata Netaji S. Chandra-ONT Ontario
28h 35m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl
$1,077Multiple Airlines
Sat, Oct 31 - Sun, Dec 6
Multiple Airlines Logo
12:45 am - 11:50 pmONT  Ontario-CCU Kolkata Netaji S. Chandra
34h 35m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
1:00 am - 6:40 pmCCU  Kolkata Netaji S. Chandra-ONT Ontario
30h 10m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl
$1,108Multiple Airlines
Mon, Aug 24 - Mon, Sep 14
Multiple Airlines Logo
12:45 am - 12:45 amONT  Ontario-CCU Kolkata Netaji S. Chandra
35h 30m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
2:00 am - 6:00 pmCCU  Kolkata Netaji S. Chandra-ONT Ontario
28h 30m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl
$1,172Multiple Airlines
Sun, Sep 6 - Tue, Sep 29
Multiple Airlines Logo
12:45 am - 11:50 pmONT  Ontario-CCU Kolkata Netaji S. Chandra
34h 35m2 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi
Multiple Airlines Logo
1:00 am - 6:00 pmCCU  Kolkata Netaji S. Chandra-ONT Ontario
29h 30m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl
$1,339Multiple Airlines
Mon, Sep 14 - Mon, Oct 19
Multiple Airlines Logo
12:00 pm - 2:30 amONT  Ontario-CCU Kolkata Netaji S. Chandra
26h 00m2 stops Seattle/Tacoma Intl Doha Hamad Intl
Multiple Airlines Logo
4:00 am - 7:03 pmCCU  Kolkata Netaji S. Chandra-ONT Ontario
27h 33m2 stops Doha Hamad Intl Seattle/Tacoma Intl
$1,360Multiple Airlines
Tue, Sep 1 - Wed, Sep 30
Qatar Airways Logo
6:00 am - 1:55 amONT  Ontario-CCU Kolkata Netaji S. Chandra
30h 25m2 stops Seattle/Tacoma Intl Doha Hamad Intl
Qatar Airways Logo
3:25 am - 11:09 amCCU  Kolkata Netaji S. Chandra-ONT Ontario
45h 14m2 stops Doha Hamad Intl Seattle/Tacoma Intl
$1,387Qatar Airways
Thu, Nov 12 - Mon, Nov 30
Multiple Airlines Logo
12:45 am - 12:10 amONT  Ontario-CCU Kolkata Netaji S. Chandra
34h 55m3 stops Taipei City Taiwan Taoyuan Intl Bangkok Suvarnabhumi Mumbai Chhatrapati Shivaji Intl
Multiple Airlines Logo
2:00 am - 5:05 pmCCU  Kolkata Netaji S. Chandra-ONT Ontario
27h 35m2 stops Bangkok Suvarnabhumi Taipei City Taiwan Taoyuan Intl
$1,394Multiple Airlines
Mon, Aug 31 - Tue, Sep 29
Multiple Airlines Logo
6:00 am - 1:55 amONT  Ontario-CCU Kolkata Netaji S. Chandra
30h 25m2 stops Seattle/Tacoma Intl Doha Hamad Intl
Multiple Airlines Logo
3:25 am - 10:39 pmCCU  Kolkata Netaji S. Chandra-ONT Ontario
32h 44m2 stops Doha Hamad Intl Seattle/Tacoma Intl
$1,398Multiple Airlines
Wed, Nov 11 - Fri, Dec 11
Multiple Airlines Logo
2:13 pm - 2:10 amONT  Ontario-CCU Kolkata Netaji S. Chandra
47h 27m2 stops Seattle/Tacoma Intl Doha Hamad Intl
Multiple Airlines Logo
3:40 am - 6:00 pmCCU  Kolkata Netaji S. Chandra-ONT Ontario
26h 50m2 stops Doha Hamad Intl Seattle/Tacoma Intl
$1,406Multiple Airlines
Thu, Oct 15 - Fri, Oct 23

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Qatar Airways flights from Ontario to Kolkata

Our best Qatar Airways deals on Ontario to Kolkata flight tickets
Qatar Airways
Nov 12
ONT6:00 amOntario
30h 25m
2 stops
CCU1:55 amKolkata Netaji S. Chandra
Nov 30
CCU3:25 amKolkata Netaji S. Chandra
45h 14m
2 stops
ONT11:09 amOntario
$1,387
Qatar Airways
Nov 13
ONT6:00 amOntario
30h 25m
2 stops
CCU1:55 amKolkata Netaji S. Chandra
Nov 30
CCU3:25 amKolkata Netaji S. Chandra
45h 14m
2 stops
ONT11:09 amOntario
$1,426
Qatar Airways
Nov 16
ONT6:00 amOntario
30h 25m
2 stops
CCU1:55 amKolkata Netaji S. Chandra
Dec 6
CCU3:25 amKolkata Netaji S. Chandra
32h 44m
2 stops
ONT10:39 pmOntario
$1,427

momondo 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, momondo users made 832,500 searches. Data last updated August 12, 2026.
Use the filters below to find and compare flights from Ontario to Kolkata that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

OntarioKolkata

ONT Ontario - CCU Kolkata Netaji S. Chandra

ONTCCU

Ontario

Fri 10/16

11:30 pm-11:50 pm

2 stops35h 50m

Kolkata Netaji S. Chandra

Fri 10/23

1:00 am-5:05 pm

2 stops28h 35m

$1,054

OntarioKolkata

ONT Ontario - CCU Kolkata Netaji S. Chandra

ONTCCU

Ontario

Sat 10/31

10:45 pm-11:50 pm

2 stops36h 35m

Kolkata Netaji S. Chandra

Sun 12/6

12:50 am-3:55 pm

2 stops28h 35m

$1,077

OntarioKolkata

ONT Ontario - CCU Kolkata Netaji S. Chandra

ONTCCU

Ontario

Mon 8/24

12:45 am-11:50 pm

2 stops34h 35m

Kolkata Netaji S. Chandra

Mon 9/14

1:00 am-6:40 pm

2 stops30h 10m

$1,108

OntarioKolkata

ONT Ontario - CCU Kolkata Netaji S. Chandra

ONTCCU

Ontario

Sun 9/6

12:45 am-12:45 am

2 stops35h 30m

Kolkata Netaji S. Chandra

Tue 9/29

2:00 am-6:00 pm

2 stops28h 30m

$1,172

OntarioKolkata

ONT Ontario - CCU Kolkata Netaji S. Chandra

ONTCCU

Ontario

Mon 9/14

12:45 am-11:50 pm

2 stops34h 35m

Kolkata Netaji S. Chandra

Mon 10/19

1:00 am-6:00 pm

2 stops29h 30m

$1,339
Quickest round-trip

OntarioKolkata

ONT Ontario - CCU Kolkata Netaji S. Chandra

ONTCCU

Ontario

Tue 9/1

12:00 pm-2:30 am

2 stops26h 00m

Kolkata Netaji S. Chandra

Wed 9/30

4:00 am-7:03 pm

2 stops27h 33m

$1,360

OntarioKolkata

ONT Ontario - CCU Kolkata Netaji S. Chandra

ONTCCU

Ontario

Thu 11/12

6:00 am-1:55 am

2 stops30h 25m

Kolkata Netaji S. Chandra

Mon 11/30

3:25 am-11:09 am

2 stops45h 14m

$1,387

OntarioKolkata

ONT Ontario - CCU Kolkata Netaji S. Chandra

ONTCCU

Ontario

Mon 8/31

12:45 am-12:10 am

3 stops34h 55m

Kolkata Netaji S. Chandra

Tue 9/29

2:00 am-5:05 pm

2 stops27h 35m

$1,394

OntarioKolkata

ONT Ontario - CCU Kolkata Netaji S. Chandra

ONTCCU

Ontario

Wed 11/11

6:00 am-1:55 am

2 stops30h 25m

Kolkata Netaji S. Chandra

Fri 12/11

3:25 am-10:39 pm

2 stops32h 44m

$1,398

OntarioKolkata

ONT Ontario - CCU Kolkata Netaji S. Chandra

ONTCCU

Ontario

Thu 10/15

2:13 pm-2:10 am

2 stops47h 27m

Kolkata Netaji S. Chandra

Fri 10/23

3:40 am-6:00 pm

2 stops26h 50m

$1,406

Flights are sorted by cheapest round-trip flights first.

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See travel insights to Kolkata from

How to get the cheapest flight ticket from Ontario to Kolkata

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Ontario to Kolkata Netaji S. Chandra?

Etihad Airways is the most popular carrier operating from Ontario to Kolkata Netaji S. Chandra

What airlines fly to Kolkata?

Singapore Airlines, IndiGo and Emirates are the top three most popular airlines that fly to Kolkata from Ontario according to our data. Singapore Airlines is the first choice among our users, with 39% of people opting to fly with this airline when traveling to Kolkata. Keep in mind that there are 8 different airlines that fly to Kolkata on a routine basis, so you have a few additional options to choose from.

When to book flights from Ontario to Kolkata

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Kolkata according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Kolkata (ONT to CCU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Kolkata

Fastest flight time

26h 00m

Direct flights

None
The fastest flight from Ontario to Kolkata takes 26h 00m
There are no direct flights from Ontario to Kolkata. There are no popular flight routes from Ontario to Kolkata.
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Frequently asked questions about flying from Ontario to Kolkata

  • How far is Ontario to Kolkata Netaji S. Chandra by plane?

    The distance between Ontario and Kolkata Netaji S. Chandra is about 8161.4 mi. Flights usually cover this in 26h 00m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Ontario Airport to Kolkata Netaji S. Chandra Airport?

    Prices for flights from Ontario Airport to Kolkata Netaji S. Chandra Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Ontario Airport to Kolkata Netaji S. Chandra Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Kolkata Netaji S. Chandra Airport.

  • What documentation or ID do you need to fly to Kolkata Netaji S. Chandra Airport?

    The travel and health documents required for your trip to Kolkata Netaji S. Chandra Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Kolkata Netaji S. Chandra Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Kolkata?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Ontario to Kolkata. momondo saves you time and could save you money on your trip.

Can I find flights from Ontario to Kolkata with flexible booking policies on momondo?

Flights from Ontario to Kolkata with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Ontario to Kolkata?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Ontario to Kolkata.

I’m not ready to book a flight from Ontario to Kolkata right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Kolkata, momondo offers a useful price alert feature which will track prices for flights to Kolkata from Ontario and alert you when they change.

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