How long is the flight from Boston to Kolkata?

Air India, Etihad Airways, and KLM can get you from Boston to Kolkata in just under 25h. Your travel time can differ by up to 11h 04m. The distance from Boston to Kolkata is about 12476 km. This flight may include one or multiple stops. Find deals

What is the cheapest airline to fly from Boston to Kolkata round-trip?

Currently priced at ₹ 101,713, Qatar Airways will fly you from Boston to Kolkata and back. In addition to Qatar Airways, many other airlines offer competitively priced options for your trip. Users have found that Qatar Airways is 10% cheaper than the other options available to this destination. Find deals

What is the cheapest day to fly from Boston to Kolkata?

Travellers seeking maximum savings on their Boston to Kolkata flight should consider departing on Sunday afternoons when fares are most often at their lowest. Wednesday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 day to fly return from Boston to Kolkata?

Leaving on a Saturday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 35% on the overall cost on flights from Boston to Kolkata.

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

Users have found that booking a flight from Boston to Kolkata at least 48 days early can save you up to 21% on average compared to booking a flight this week. If booking 48 days before your flight isn’t an option for you, users have found flights from Boston to Kolkata for as little as ₹ 106,638 when booking for a departure date within the next two weeks. You can also check prices now. Some users have found airline tickets as low as ₹ 129,502 for flights departing within the next 3 days.

What is the cheapest month to fly from Boston to Kolkata?

Our data shows that September tends to be the cheapest month to fly to Kolkata from Boston. Users have commonly found prices around ₹ 113,840 for the month, but tickets can be as low as ₹ 78,213. Due to multiple factors, prepare for potentially higher prices in December.

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

It’s optimal to fly from Boston to Kolkata in the morning. By choosing this option you can save up to 24% on the cost of your flight, compared to a flight at midday.

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.

₹ 35,399+ Cheap Flights from Boston to Kolkata

Cheapflights Tip: The best prices from Boston Logan Intl to Kolkata Netaji S. Chandra are usually found in September or November, booked 78 days in advance, depart on a Friday or Monday and return on a Wednesday

Cheap flight deals from Boston to Kolkata

Round-trip from	₹ 73,711
One-way from	₹ 35,399
Popular in	December
Cheapest in	September
Average price	₹ 98,164

8/11-7/12
4 total stops
76h 40m total
Boston to Kolkata

Search Deals

American Airlines
17/9
2 total stops
24h 46m total
Boston to Kolkata

Search Deals

Highest demand for flights based on searches. 6% potential increase in price (₹ 688,942 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (₹ 365,874 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2025

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Find flight deals from Boston to Kolkata

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 12 September 2025.

Sat 8/1115:40BOS - CCU

2 stops26h 30mMultiple Airlines

Sun 7/1222:30CCU - BOS

2 stops50h 10mMultiple Airlines

Deal found 11/9₹ 73,711

Wed 8/1007:00BOS - CCU

2 stops31h 40mAir India

Mon 20/1019:55CCU - BOS

2 stops27h 24mAir India

Deal found 11/9₹ 74,770

Fri 19/916:30BOS - CCU

2 stops27h 30mMultiple Airlines

Sat 27/922:15CCU - BOS

2 stops26h 10mMultiple Airlines

Deal found 11/9₹ 74,947

Wed 22/1007:00BOS - CCU

2 stops26h 45mAir India

Wed 12/1118:45CCU - BOS

2 stops32h 22mAir India

Deal found 10/9₹ 78,125

Wed 24/907:08BOS - CCU

2 stops26h 37mAir India

Sat 11/1017:30CCU - BOS

2 stops27h 45mAir India

Deal found 10/9₹ 78,478

Sun 26/1016:40BOS - CCU

2 stops22h 00mMultiple Airlines

Sun 2/1116:15CCU - BOS

2 stops32h 25mMultiple Airlines

Deal found 11/9₹ 78,566

Sun 9/1115:40BOS - CCU

2 stops29h 15mMultiple Airlines

Tue 9/1203:35CCU - BOS

1 stop21h 05mMultiple Airlines

Deal found 9/9₹ 78,654

Wed 22/1016:30BOS - CCU

2 stops26h 45mMultiple Airlines

Tue 11/1103:35CCU - BOS

1 stop21h 05mMultiple Airlines

Deal found 10/9₹ 79,802

Thu 9/1005:23BOS - CCU

2 stops32h 37mAir India

Sun 26/1020:30CCU - BOS

2 stops32h 50mAir India

Deal found 12/9₹ 79,979

Wed 8/1016:30BOS - CCU

2 stops26h 45mMultiple Airlines

Mon 20/1004:00CCU - BOS

1 stop20h 25mMultiple Airlines

Deal found 11/9₹ 80,243

Fri 31/1021:00BOS - CCU

2 stops28h 25mIndiGo

Thu 13/1122:30CCU - BOS

2 stops30h 05mIndiGo

Deal found 9/9₹ 80,420

Thu 18/921:35BOS - CCU

2 stops34h 10mIndiGo

Fri 26/922:15CCU - BOS

2 stops30h 55mIndiGo

Deal found 10/9₹ 80,508

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 12 September 2025.

Sat 4/1019:16BOS - CCU

2 stops36h 04mAir India

Sun 2/1117:30CCU - BOS

2 stops28h 43mAir India

Deal found 11/9₹ 80,508

Fri 26/916:30BOS - CCU

2 stops22h 10mMultiple Airlines

Fri 24/1004:00CCU - BOS

1 stop20h 25mMultiple Airlines

Deal found 11/9₹ 88,983

Wed 8/1016:30BOS - CCU

1 stop25h 00mEtihad Airways

Mon 20/1004:00CCU - BOS

1 stop20h 25mEtihad Airways

Deal found 11/9₹ 91,454

Sat 27/919:25BOS - CCU

2 stops27h 30mKLM

Thu 23/1019:00CCU - BOS

2 stops28h 10mKLM

Deal found 11/9₹ 93,397

Mon 6/1020:10BOS - CCU

2 stops28h 50mBritish Airways

Tue 11/1103:15CCU - BOS

2 stops47h 25mBritish Airways

Deal found 10/9₹ 93,750

Sat 27/921:35BOS - CCU

2 stops32h 30mTurkish Airlines

Wed 22/1022:30CCU - BOS

2 stops30h 40mTurkish Airlines

Deal found 11/9₹ 96,663

Sat 8/1122:25BOS - CCU

3 stops35h 05mMultiple Airlines

Sun 7/1219:30CCU - BOS

2 stops33h 05mMultiple Airlines

Deal found 11/9₹ 91,101

Wed 8/1020:10BOS - CCU

2 stops32h 30mBritish Airways

Sun 19/1002:00CCU - BOS

2 stops27h 40mBritish Airways

Deal found 10/9₹ 93,750

Fri 26/916:30BOS - CCU

2 stops22h 10mMultiple Airlines

Sat 25/1004:00CCU - BOS

1 stop20h 25mMultiple Airlines

Deal found 11/9₹ 94,103

Sat 27/920:10BOS - CCU

2 stops32h 30mBritish Airways

Mon 20/1002:00CCU - BOS

2 stops27h 40mBritish Airways

Deal found 11/9₹ 96,839

Last-minute flights from Boston to Kolkata
Discover last-minute flight deals from Boston to Kolkata. Data last updated 12 September 2025 and is based on user searches.

Thu 18/921:35BOS - CCU

2 stops34h 10mIndiGo

Fri 26/922:15CCU - BOS

2 stops30h 55mIndiGo

Deal found 10/9₹ 80,508

Thu 18/916:30BOS - CCU

2 stops22h 10mMultiple Airlines

Fri 26/914:10CCU - BOS

3 stops34h 15mMultiple Airlines

Deal found 10/9₹ 82,892

Thu 18/922:00BOS - CCU

1 stop18h 50mQatar Airways

Thu 25/903:50CCU - BOS

1 stop20h 45mQatar Airways

Deal found 10/9₹ 97,281

Fri 19/916:30BOS - CCU

2 stops27h 30mMultiple Airlines

Sat 27/922:15CCU - BOS

2 stops26h 10mMultiple Airlines

Deal found 11/9₹ 74,947

Fri 19/921:35BOS - CCU

2 stops37h 10mIndiGo

Fri 26/902:00CCU - BOS

2 stops27h 10mIndiGo

Deal found 11/9₹ 84,481

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 12 September 2025.

Wed 17/918:29BOS - CCU

2 stops24h 46mAmerican Airlines

Deal found 11/9₹ 35,399

Thu 18/916:30BOS - CCU

2 stops22h 10mMultiple Airlines

Deal found 10/9₹ 38,665

Wed 17/916:30BOS - CCU

2 stops22h 05mMultiple Airlines

Deal found 11/9₹ 38,753

Mon 27/1016:40BOS - CCU

2 stops21h 30mMultiple Airlines

Deal found 11/9₹ 38,930

Fri 19/916:30BOS - CCU

3 stops35h 10mMultiple Airlines

Deal found 11/9₹ 40,078

Sun 26/1016:40BOS - CCU

2 stops33h 45mMultiple Airlines

Deal found 10/9₹ 40,519

Sun 21/916:30BOS - CCU

2 stops31h 20mMultiple Airlines

Deal found 11/9₹ 40,607

Sat 20/916:30BOS - CCU

2 stops22h 10mMultiple Airlines

Deal found 11/9₹ 41,137

Sat 27/921:35BOS - CCU

2 stops32h 30mIndiGo

Deal found 11/9₹ 41,225

Mon 22/916:30BOS - CCU

2 stops22h 10mMultiple Airlines

Deal found 11/9₹ 41,578

Fri 26/916:30BOS - CCU

3 stops33h 50mMultiple Airlines

Deal found 10/9₹ 42,902

Fly from

Fly to

Route

Depart

Return

Price

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Sat 4/10

19:16-16:50

2 stops36h 04m

Kolkata Netaji S. Chandra

Sun 2/11

17:30-11:43

2 stops28h 43m

₹ 80,508

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Fri 26/9

16:30-00:10

2 stops22h 10m

Kolkata Netaji S. Chandra

Fri 24/10

04:00-14:55

1 stop20h 25m

₹ 88,983

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Sat 8/11

22:25-20:00

3 stops35h 05m

Kolkata Netaji S. Chandra

Sun 7/12

19:30-18:05

2 stops33h 05m

₹ 91,101

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Wed 8/10

16:30-03:00

1 stop25h 00m

Kolkata Netaji S. Chandra

Mon 20/10

04:00-14:55

1 stop20h 25m

₹ 91,454

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Sat 27/9

19:25-08:25

2 stops27h 30m

Kolkata Netaji S. Chandra

Thu 23/10

19:00-13:40

2 stops28h 10m

₹ 93,397

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Mon 6/10

20:10-10:30

2 stops28h 50m

Kolkata Netaji S. Chandra

Tue 11/11

03:15-16:10

2 stops47h 25m

₹ 93,750

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Wed 8/10

20:10-14:10

2 stops32h 30m

Kolkata Netaji S. Chandra

Sun 19/10

02:00-20:10

2 stops27h 40m

₹ 93,750

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Fri 26/9

16:30-00:10

2 stops22h 10m

Kolkata Netaji S. Chandra

Sat 25/10

04:00-14:55

1 stop20h 25m

₹ 94,103

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Sat 27/9

21:35-15:35

2 stops32h 30m

Kolkata Netaji S. Chandra

Wed 22/10

22:30-19:40

2 stops30h 40m

₹ 96,663

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Sat 27/9

20:10-14:10

2 stops32h 30m

Kolkata Netaji S. Chandra

Mon 20/10

02:00-20:10

2 stops27h 40m

₹ 96,839

Flights are sorted by cheapest return flights first.

Deals found on 10/9

Showing 1-10 of 20 results

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.

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 78 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, July is the cheapest month in which you can book a flight from Boston to Kolkata (average of ₹ 116). Flying from Boston to Kolkata in October is currently the most expensive (average of ₹ 161). 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.

Reviews of airlines servicing Kolkata

Check out reviews from past customers who have flown with Qatar Airways from Boston to Kolkata to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Qatar Airways

7.4

Good

3,624 reviews

Check prices

Reviews

1 / 20

6.0

Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable

Qatar Airways

7.4

Good

3,624 reviews

Qatar Airways

7.4

Good

3,624 reviews

Check prices

Reviews

1 / 20

6.0

Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable

Related info for your journey

How long is the flight from Boston to Kolkata?
Air India, Etihad Airways, and KLM can get you from Boston to Kolkata in just under 25h. Your travel time can differ by up to 11h 04m. The distance from Boston to Kolkata is about 12476 km. This flight may include one or multiple stops.
What is the cheapest airline to fly from Boston to Kolkata round-trip?
Currently priced at ₹ 101,713, Qatar Airways will fly you from Boston to Kolkata and back. In addition to Qatar Airways, many other airlines offer competitively priced options for your trip. Users have found that Qatar Airways is 10% cheaper than the other options available to this destination.
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, July is the cheapest month in which you can book a flight from Boston to Kolkata (average of ₹ 116). Flying from Boston to Kolkata in October is currently the most expensive (average of ₹ 161). 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

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Boston to Kolkata

Airline	Cheapest	Average	Flexibility	On-time
Qatar Airways	Cheapest₹ 101,713	Average₹ 120,670	FlexibilityNo cancel fee	On-time68%	Search Qatar Airways flights

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

Cheapflights makes it easy to find Boston to Kolkata flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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.

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

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Cheap flights from Boston to Kolkata from ₹ 35,399

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 17/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheapflights Tip: The best prices from Boston Logan Intl to Kolkata Netaji S. Chandra are usually found in September or November, booked 78 days in advance, depart on a Friday or Monday and return on a Wednesday

Cheap flight deals from Boston to Kolkata

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find 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 12 September 2025.

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 12 September 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Boston to Kolkata that are best for you.

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

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

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

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

Reviews of airlines servicing Kolkata

Check out reviews from past customers who have flown with Qatar Airways from Boston to Kolkata to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Boston 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 Boston to Kolkata?

What is the cheapest airline to fly from Boston to Kolkata round-trip?

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.

Top airline flying from Boston to Kolkata

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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

Why should you use Cheapflights to find cheap flight tickets from Boston to Kolkata?

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 12 September 2025.