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Cheap flights from Ontario to Kolkata from $610

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 9/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Ontario to Kolkata

Cheap round-trip flights

Multiple Airlines Logo
10:50 pm - 12:40 amONT-CCU
36h 20m2 stops
Multiple Airlines Logo
2:00 am - 6:00 pmCCU-ONT
28h 30m2 stops
$1,134Multiple Airlines
Find Deal
Sun, Jan 18 - Mon, Mar 30
Etihad Airways Logo
10:56 pm - 3:00 amONT-CCU
39h 34m2 stops
Etihad Airways Logo
4:00 am - 9:29 pmCCU-ONT
53h 59m2 stops
$1,146Etihad Airways
Find Deal
Wed, Oct 8 - Mon, Oct 20
Multiple Airlines Logo
12:10 am - 11:59 pmONT-CCU
59h 19m2 stops
Multiple Airlines Logo
12:30 am - 6:00 pmCCU-ONT
30h 00m2 stops
$1,207Multiple Airlines
Find Deal
Thu, Oct 9 - Fri, Oct 24
Multiple Airlines Logo
7:18 pm - 10:25 pmONT-CCU
37h 37m2 stops
Multiple Airlines Logo
11:40 pm - 3:12 pmCCU-ONT
29h 02m2 stops
$1,229Multiple Airlines
Find Deal
Mon, Jan 5 - Fri, Jan 30
Etihad Airways Logo
10:56 pm - 3:00 amONT-CCU
39h 34m2 stops
Etihad Airways Logo
4:00 am - 9:29 pmCCU-ONT
53h 59m2 stops
$1,246Etihad Airways
Find Deal
Fri, Oct 10 - Mon, Oct 20
Etihad Airways Logo
10:56 pm - 9:20 pmONT-CCU
33h 54m2 stops
Etihad Airways Logo
4:00 am - 9:29 pmCCU-ONT
29h 59m2 stops
$1,273Etihad Airways
Find Deal
Tue, Oct 14 - Tue, Oct 21
Etihad Airways Logo
10:56 pm - 8:35 pmONT-CCU
33h 09m2 stops
Etihad Airways Logo
4:00 am - 9:29 pmCCU-ONT
29h 59m2 stops
$1,341Etihad Airways
Find Deal
Wed, Oct 8 - Sat, Oct 18
Qatar Airways Logo
11:05 am - 1:55 amONT-CCU
49h 20m2 stops
Qatar Airways Logo
3:25 am - 10:02 pmCCU-ONT
31h 07m2 stops
$1,833Qatar Airways
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Thu, Feb 26 - Sun, Mar 22
Qatar Airways Logo
2:59 pm - 1:55 amONT-CCU
45h 26m2 stops
Qatar Airways Logo
3:25 am - 1:55 pmCCU-ONT
48h 00m2 stops
$2,000Qatar Airways
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Fri, Nov 21 - Thu, Dec 11
Qatar Airways Logo
10:57 am - 2:20 amONT-CCU
26h 53m2 stops
Qatar Airways Logo
3:25 am - 6:52 pmCCU-ONT
27h 57m2 stops
$2,074Qatar Airways
Find Deal
Wed, Oct 22 - Mon, Oct 27

Etihad Airways flights from Ontario to Kolkata

Our best Etihad Airways deals on Ontario to Kolkata flight tickets
Etihad Airways
Oct 8
ONT10:56 pmOntario
39h 34m
2 stops
CCU3:00 amKolkata Netaji S. Chandra
Oct 20
CCU4:00 amKolkata Netaji S. Chandra
53h 59m
2 stops
ONT9:29 pmOntario
$1,146
Find similar
Etihad Airways
Oct 10
ONT10:56 pmOntario
39h 34m
2 stops
CCU3:00 amKolkata Netaji S. Chandra
Oct 20
CCU4:00 amKolkata Netaji S. Chandra
53h 59m
2 stops
ONT9:29 pmOntario
$1,246
Find similar
Etihad Airways
Oct 14
ONT10:56 pmOntario
33h 54m
2 stops
CCU9:20 pmKolkata Netaji S. Chandra
Oct 21
CCU4:00 amKolkata Netaji S. Chandra
29h 59m
2 stops
ONT9:29 pmOntario
$1,273
Find similar

Qatar Airways flights from Ontario to Kolkata

Our best Qatar Airways deals on Ontario to Kolkata flight tickets
Qatar Airways
Feb 26
ONT11:05 amOntario
49h 20m
2 stops
CCU1:55 amKolkata Netaji S. Chandra
Mar 22
CCU3:25 amKolkata Netaji S. Chandra
31h 07m
2 stops
ONT10:02 pmOntario
$1,833
Find similar
Qatar Airways
Nov 21
ONT2:59 pmOntario
45h 26m
2 stops
CCU1:55 amKolkata Netaji S. Chandra
Dec 11
CCU3:25 amKolkata Netaji S. Chandra
48h 00m
2 stops
ONT1:55 pmOntario
$2,000
Find similar
Qatar Airways
Sep 24
ONT2:54 pmOntario
46h 56m
2 stops
CCU2:20 amKolkata Netaji S. Chandra
Oct 27
CCU3:25 amKolkata Netaji S. Chandra
27h 57m
2 stops
ONT6:52 pmOntario
$2,054
Find similar

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 September 17, 2025.
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

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Sun 1/18

10:50 pm-12:40 am

2 stops36h 20m

Kolkata Netaji S. Chandra

Mon 3/30

2:00 am-6:00 pm

2 stops28h 30m

$1,134

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Wed 10/8

10:56 pm-3:00 am

2 stops39h 34m

Kolkata Netaji S. Chandra

Mon 10/20

4:00 am-9:29 pm

2 stops53h 59m

$1,146

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Thu 10/9

12:10 am-11:59 pm

2 stops59h 19m

Kolkata Netaji S. Chandra

Fri 10/24

12:30 am-6:00 pm

2 stops30h 00m

$1,207

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Mon 1/5

7:18 pm-10:25 pm

2 stops37h 37m

Kolkata Netaji S. Chandra

Fri 1/30

11:40 pm-3:12 pm

2 stops29h 02m

$1,229

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Fri 10/10

10:56 pm-3:00 am

2 stops39h 34m

Kolkata Netaji S. Chandra

Mon 10/20

4:00 am-9:29 pm

2 stops53h 59m

$1,246

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Tue 10/14

10:56 pm-9:20 pm

2 stops33h 54m

Kolkata Netaji S. Chandra

Tue 10/21

4:00 am-9:29 pm

2 stops29h 59m

$1,273

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Wed 10/8

10:56 pm-8:35 pm

2 stops33h 09m

Kolkata Netaji S. Chandra

Sat 10/18

4:00 am-9:29 pm

2 stops29h 59m

$1,341

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Thu 2/26

11:05 am-1:55 am

2 stops49h 20m

Kolkata Netaji S. Chandra

Sun 3/22

3:25 am-10:02 pm

2 stops31h 07m

$1,833

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Fri 11/21

2:59 pm-1:55 am

2 stops45h 26m

Kolkata Netaji S. Chandra

Thu 12/11

3:25 am-1:55 pm

2 stops48h 00m

$2,000

OntarioKolkata

ONT - CCU

ONTCCU

Ontario

Wed 10/22

10:57 am-2:20 am

2 stops26h 53m

Kolkata Netaji S. Chandra

Mon 10/27

3:25 am-6:52 pm

2 stops27h 57m

$2,074

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 day to depart on your flight to Kolkata?

On average, the least expensive day to fly to Kolkata from Ontario is on a Thursday. momondo users have found tickets for Thursday departures for as low as $1,068. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Wednesday as prices are generally higher than usual. According to our data, the average ticket price to Kolkata on Wednesday is $1,573.

What is the cheapest time of day to depart on your flight to Kolkata?

In the afternoon is the cheapest time of day to fly from Ontario to Kolkata when you can find flight prices for as low as $1,394. Flying to Kolkata in the afternoon is an ideal time because this is during off-peak travel hours. Flights to Kolkata are more costly at noon, with an average ticket price of $1,454. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

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

Direct flights

None
There are no direct flights from Ontario to Kolkata. There are no popular flight routes from Ontario to Kolkata.
Search flight deals

  • 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 24h 26m, 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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