How long is the flight from Boston to Kolkata?

Emirates, KLM, and Turkish Airlines can get you from Boston to Kolkata in just under 25h 45m. Your travel time can differ by up to 8h 35m. The distance from Boston to Kolkata is about 12476 km. This flight may include one or multiple stops.

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 BOS to CCU?

When flying from Boston to Kolkata, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

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

How can I find direct flights from Boston to Kolkata?

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

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

Yes. Cheapflights offers flight deals from Boston 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.

₹ 57,873+ Cheap Flights from Boston to Kolkata

Cheap flight deals from Boston to Kolkata

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Boston to Kolkata
Explore the most affordable flight options available from Boston to Kolkata. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Tue 24/1122:10 -

1 stop23h 00m

Fri 4/1209:20 -

1 stop39h 05m

Deal found 27/10₹ 92,844

Sun 29/1122:10 -

1 stop23h 00m

Mon 1/309:20 -

1 stop39h 05m

Deal found 28/10₹ 94,365

Sun 29/1122:10 -

1 stop23h 00m

Sun 28/220:35 -

1 stop27h 50m

Deal found 28/10₹ 95,600

Thu 26/1122:10 -

1 stop23h 00m

Thu 3/1209:20 -

1 stop39h 05m

Deal found 27/10₹ 97,691

Sun 15/1115:40 -

1 stop17h 45m

Mon 7/1221:00 -

1 stop27h 10m

Deal found 27/10₹ 98,736

Mon 30/1122:10 -

1 stop23h 00m

Sun 28/209:20 -

1 stop39h 05m

Deal found 28/10₹ 99,021

Sun 29/1122:10 -

1 stop23h 00m

Mon 1/317:00 -

2 stops31h 25m

Deal found 28/10₹ 100,162

Sun 15/1122:10 -

1 stop23h 00m

Fri 4/1220:35 -

1 stop27h 50m

Deal found 27/10₹ 100,637

Tue 24/1122:10 -

1 stop23h 00m

Wed 9/1217:00 -

2 stops31h 25m

Deal found 27/10₹ 100,827

Sun 29/1122:10 -

1 stop23h 00m

Tue 2/309:20 -

1 stop39h 05m

Deal found 28/10₹ 101,112

Find flight deals from Boston to Kolkata

Round-trip from	₹ 91,799
One-way from	₹ 57,873
Popular in	December
Cheapest in	September
Average price	₹ 106,719

Emirates
2/2-23/2
2 total stops
62h 05m total
Boston to Kolkata

Search Deals

24/11-31/12
3 total stops
35h 00m total
Boston to Kolkata

Search Deals

Highest demand for flights based on searches. 7% potential increase in price (₹ 911,337 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (₹ 427,731 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

BostonKolkata

BOS Boston Logan Intl - CCU Kolkata Netaji S. Chandra

BOSCCU

Boston Logan Intl

Sun 8/11

15:40-01:45

2 stops23h 35m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-13:30

Nonstop0h 00m

₹ 60,629

BostonKolkata

BOS Boston Logan Intl - CCU Kolkata Netaji S. Chandra

BOSCCU

Boston Logan Intl

Thu 12/11

22:20-19:55

3 stops35h 05m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-13:30

Nonstop0h 00m

₹ 61,865

BostonKolkata

BOS Boston Logan Intl - CCU Kolkata Netaji S. Chandra

BOSCCU

Boston Logan Intl

Thu 5/11

15:40-22:20

2 stops44h 10m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-13:30

Nonstop0h 00m

₹ 70,322

BostonKolkata

BOS Boston Logan Intl - CCU Kolkata Netaji S. Chandra

BOSCCU

Boston Logan Intl

Tue 24/11

15:40-22:20

2 stops44h 10m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-13:30

Nonstop0h 00m

₹ 73,078

BostonKolkata

BOS Boston Logan Intl - CCU Kolkata Netaji S. Chandra

BOSCCU

Boston Logan Intl

Wed 4/11

15:40-11:45

3 stops33h 35m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-13:30

Nonstop0h 00m

₹ 77,259

BostonKolkata

BOS Boston Logan Intl - CCU Kolkata Netaji S. Chandra

BOSCCU

Boston Logan Intl

Sat 21/11

20:00-12:50

2 stops30h 20m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-13:30

Nonstop0h 00m

₹ 86,097

Fastest return journey

BostonKolkata

BOS Boston Logan Intl - CCU Kolkata Netaji S. Chandra

BOSCCU

Boston Logan Intl

Thu 12/11

15:40-19:55

1 stop17h 45m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-13:30

Nonstop0h 00m

₹ 86,952

BostonKolkata

BOS Boston Logan Intl - CCU Kolkata Netaji S. Chandra

BOSCCU

Boston Logan Intl

Fri 27/11

15:40-19:55

1 stop17h 45m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-13:30

Nonstop0h 00m

₹ 93,605

BostonKolkata

BOS Boston Logan Intl - CCU Kolkata Netaji S. Chandra

BOSCCU

Boston Logan Intl

Wed 4/11

15:40-02:25

1 stop24h 15m

Kolkata Netaji S. Chandra

Wed 31/12

00:00-13:30

Nonstop0h 00m

₹ 99,972

BostonKolkata

BOS Boston Logan Intl - CCU Kolkata Netaji S. Chandra

BOSCCU

Boston Logan Intl

Mon 16/11

22:10-19:00

1 stop34h 20m

Kolkata Netaji S. Chandra

Fri 27/11

20:35-13:55

1 stop27h 50m

₹ 109,190

Flights are sorted by cheapest return flights first.

Deals found on 25/10

Showing 1-10 of 21 resultsSorted by cheapest first

Best time to book a flight from Boston to Kolkata

Have a flexible travel schedule? Discover the best time to fly to Kolkata from Boston with our price prediction graph.

BOS-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.

Cheapflights Insights

Everything you need to know about your flight from Boston to Kolkata

How far ahead should I book a flight from Boston to Kolkata?

The best time to book flights from Boston to Kolkata is 66 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, September is the cheapest month in which you can book a flight from Boston to Kolkata (average of ₹ 82,866). Flying from Boston to Kolkata in December is currently the most expensive (average of ₹ 167,918). 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.

How much does it cost for a return flight from Boston to Kolkata?

Airfare is below average for this route at the moment.

Boston to Kolkata flights typically cost between ₹ 92,369 and ₹ 124,964 in February.
The cheapest return price found within the last 5 days was ₹ 91,799 on Emirates (2 Feb–23 Feb).

Related info for your journey

How long is the flight from Boston to Kolkata?
Emirates, KLM, and Turkish Airlines can get you from Boston to Kolkata in just under 25h 45m. Your travel time can differ by up to 8h 35m. The distance from Boston to Kolkata is about 12476 km. This flight may include one or multiple stops.
Can I find deals for flights from Boston to Kolkata that include hotel bookings?
Yes. In addition to deals on Boston to Kolkata flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Boston to Kolkata?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Kolkata.
Can I find deals for business class flights from Boston to Kolkata?
Yes. Cheapflights offers flight deals from Boston 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 Boston to Kolkata?
Currently, September is the cheapest month in which you can book a flight from Boston to Kolkata (average of ₹ 82,866). Flying from Boston to Kolkata in December is currently the most expensive (average of ₹ 167,918). 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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Why should you use Cheapflights to find cheap flight tickets from Boston to Kolkata?

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Boston to Kolkata.

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

Need flexible booking options for your flight to Kolkata from Boston? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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Cheap flights from Boston to Kolkata from ₹ 57,873

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 24/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Boston to Kolkata

Cheapest flights from Boston to KolkataExplore the most affordable flight options available from Boston to Kolkata. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Explore the most affordable flight options available from Boston to Kolkata. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Best flights from Boston to KolkataDiscover carefully curated flight deals from Boston to Kolkata that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Discover carefully curated flight deals from Boston to Kolkata that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Last-minute flights from Boston to KolkataDiscover last-minute flight deals from Boston to Kolkata. Data last updated 30 October 2026 and is based on user searches.

Discover last-minute flight deals from Boston to Kolkata. Data last updated 30 October 2026 and is based on user searches.

One-way flights from Boston to KolkataSearch for one-way flight options from Boston to Kolkata. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.

Search for one-way flight options from Boston to Kolkata. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.

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Best time to book a flight from Boston to Kolkata

Have a flexible travel schedule? Discover the best time to fly to Kolkata from Boston with our price prediction graph.

Cheapflights Insights

How far ahead should I book a flight from Boston to Kolkata?

The best time to book flights from Boston to Kolkata is 66 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

How much does it cost for a return flight from Boston to Kolkata?

Airfare is below average for this route at the moment.

Boston to Kolkata flights typically cost between ₹ 92,369 and ₹ 124,964 in February.The cheapest return price found within the last 5 days was ₹ 91,799 on Emirates (2 Feb–23 Feb).

Related info for your journey

How long is the flight from Boston to Kolkata?

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

How can I find direct flights from Boston to Kolkata?

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

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Boston to Kolkata

See prices for flight routes from nearby airports that may be better suited for you.

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 Boston to Kolkata by cabin class

Find flights from Boston 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 30 October 2026.

Boston and Kolkata flights

Browse other Boston and Kolkata flight options. Last updated on 30 October 2026.

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How does Cheapflights help users find flights from Boston to Kolkata?

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

Can Cheapflights notify me if prices for flights from Boston to Kolkata become cheaper?

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Cheapest flights from Boston to Kolkata
Explore the most affordable flight options available from Boston to Kolkata. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Best flights from Boston to Kolkata
Discover carefully curated flight deals from Boston to Kolkata that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Last-minute flights from Boston to Kolkata
Discover last-minute flight deals from Boston to Kolkata. Data last updated 30 October 2026 and is based on user searches.

One-way flights from Boston to Kolkata
Search for one-way flight options from Boston to Kolkata. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.

Boston to Kolkata flights typically cost between ₹ 92,369 and ₹ 124,964 in February.
The cheapest return price found within the last 5 days was ₹ 91,799 on Emirates (2 Feb–23 Feb).