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$419+ Cheap flights from Boston (BOS) to Kolkata (CCU)

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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CCU
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
1 adult, Economy
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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 Wednesday or Monday and return on a Wednesday

Cheap flight deals from Boston to Kolkata

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Kolkata (CCU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 12, 2025.

Round-trip from

$1,120
(American Airlines)

One-way from

$419
(Booking.com)

Popular in

December

Cheapest in

September

Average price

$1,315
From Boston Logan Intl to Kolkata Netaji S. Chandra
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One-way flight from Boston Logan Intl to Kolkata Netaji S. Chandra
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Highest demand for flights based on searches. 6% potential increase in price ($94 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($47 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Booking.com deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/279:35 pmBOS - CCU
2 stops35h 40mMultiple Airlines
Wed 10/229:30 pmCCU - BOS
1 stop26h 55mMultiple Airlines
Deal found 6/10$938
This American Airlines deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/410:43 amBOS - CCU
2 stops31h 22mAmerican Airlines
Fri 12/196:00 pmCCU - BOS
2 stops26h 47mAmerican Airlines
Deal found 6/11$1,090
This Indian Eagle deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Indian Eagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/159:40 pmBOS - CCU
2 stops24h 30mSWISS
Wed 8/68:30 pmCCU - BOS
2 stops32h 55mSWISS
Deal found 6/10$1,127
This Indian Eagle deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Indian Eagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/138:05 pmBOS - CCU
2 stops26h 05mLufthansa
Tue 8/1210:45 pmCCU - BOS
2 stops26h 25mLufthansa
Deal found 6/10$1,177
This FlightHub deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/288:00 pmBOS - CCU
2 stops28h 35mTurkish Airlines
Tue 12/1610:15 pmCCU - BOS
2 stops30h 20mTurkish Airlines
Deal found 6/11$1,184
This Indian Eagle deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Indian Eagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2310:00 pmBOS - CCU
1 stop18h 50mQatar Airways
Thu 10/233:50 amCCU - BOS
1 stop20h 45mQatar Airways
Deal found 6/11$1,219
This oojo deal was found by Cheapflights users on 6/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/124:30 pmBOS - CCU
1 stop18h 20mEtihad Airways
Wed 8/64:00 amCCU - BOS
1 stop20h 25mEtihad Airways
Deal found 6/10$1,238
This Mytrip deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/179:35 pmBOS - CCU
2 stops45h 40mIndiGo
Sat 8/302:00 amCCU - BOS
2 stops27h 10mIndiGo
Deal found 6/11$1,269
This Emirates deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2311:05 pmBOS - CCU
1 stop23h 35mEmirates
Fri 10/248:45 pmCCU - BOS
1 stop26h 55mEmirates
Deal found 6/11$1,274
This FlightHub deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/98:12 pmBOS - CCU
2 stops40h 33mSingapore Airlines
Sun 10/2611:40 pmCCU - BOS
2 stops49h 31mSingapore Airlines
Deal found 6/11$1,291
This KLM deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/277:25 pmBOS - CCU
2 stops29h 50mKLM
Fri 10/247:00 pmCCU - BOS
2 stops28h 10mKLM
Deal found 6/11$1,456

Cheapflights Fare Finder

Customize your flight search to find flights from Boston 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, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
Use the filters below to find and compare flights from Boston to Kolkata that are best for you.

Fly from

Boston

Fly to

Kolkata

Route

Depart

Return

Price

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Sat 9/27

9:35 pm-6:45 pm

2 stops35h 40m

Kolkata Netaji S. Chandra

Wed 10/22

9:30 pm-2:55 pm

1 stop26h 55m

$938

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Thu 12/4

10:43 am-4:35 am

2 stops31h 22m

Kolkata Netaji S. Chandra

Fri 12/19

6:00 pm-10:17 am

2 stops26h 47m

$1,090

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Tue 7/15

9:40 pm-7:40 am

2 stops24h 30m

Kolkata Netaji S. Chandra

Wed 8/6

8:30 pm-7:55 pm

2 stops32h 55m

$1,127

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Sun 7/13

8:05 pm-7:40 am

2 stops26h 05m

Kolkata Netaji S. Chandra

Tue 8/12

10:45 pm-3:40 pm

2 stops26h 25m

$1,177

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Fri 11/28

8:00 pm-11:05 am

2 stops28h 35m

Kolkata Netaji S. Chandra

Tue 12/16

10:15 pm-6:05 pm

2 stops30h 20m

$1,184

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Tue 9/23

10:00 pm-2:20 am

1 stop18h 50m

Kolkata Netaji S. Chandra

Thu 10/23

3:50 am-3:05 pm

1 stop20h 45m

$1,219

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Sat 7/12

4:30 pm-8:20 pm

1 stop18h 20m

Kolkata Netaji S. Chandra

Wed 8/6

4:00 am-2:55 pm

1 stop20h 25m

$1,238

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Sun 8/17

9:35 pm-4:45 am

2 stops45h 40m

Kolkata Netaji S. Chandra

Sat 8/30

2:00 am-7:40 pm

2 stops27h 10m

$1,269

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Tue 9/23

11:05 pm-8:10 am

1 stop23h 35m

Kolkata Netaji S. Chandra

Fri 10/24

8:45 pm-2:10 pm

1 stop26h 55m

$1,274

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Thu 10/9

8:12 pm-10:15 pm

2 stops40h 33m

Kolkata Netaji S. Chandra

Sun 10/26

11:40 pm-3:41 pm

2 stops49h 31m

$1,291

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 19 results
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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.
Estimated round-trip 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?

Use this chart to determine the optimal time to book a round-trip flight from Boston to Kolkata. Price data was last updated on June 9, 2025.

Booking 78 days in advance of your planned departure date is, on average, the best time to get cheap flights from Boston to Kolkata. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 $970). Flying from Boston to Kolkata in December is currently the most expensive (average of $1,647). 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.

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

Find hourly flight availability from Boston to Kolkata. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 12, 2025.

It’s typically best to fly out from Boston to Kolkata at noon. Doing so could potentially save you 5% on the flight price compared to flying in the morning, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from Boston to Kolkata. Price data was last updated on December 16, 2024.

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

Rainfall in Kolkata by month

Plan your trip to Kolkata by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Kolkata ranges from 0.3 - 14.0 inches per month. August is typically the wettest month, when rainfall can reach 14.0 in. December is typically the driest time to visit Kolkata when rainfall is around 0.3 in.

Temperature in Kolkata by month

Plan your trip to Kolkata by taking into account the average temperature totals by month.

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 87.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 68.0 F).

Reviews of airlines servicing Kolkata

Get insights into the airlines that provide service to Kolkata. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Kolkata. Reviews last updated June 12, 2025.
Read through reviews of airlines operating flights from Boston to Kolkata, such as Emirates, Singapore Airlines and KLM. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.1
Very good
3,264 reviews

Overall

8.1

Food

7.8

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Emirates
8.1
Very good
3,264 reviews
Emirates
8.1
Very good
3,264 reviews

Overall

8.1

Food

7.8

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Singapore Airlines
8.1
Very good
1,302 reviews
Emirates
8.1
Very good
3,264 reviews

Overall

8.1

Food

7.8

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
KLM
7.8
Good
1,358 reviews
Emirates
8.1
Very good
3,264 reviews

Overall

8.1

Food

7.8

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
SWISS
7.5
Good
1,623 reviews
Emirates
8.1
Very good
3,264 reviews

Overall

8.1

Food

7.8

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.
Qatar Airways
7.4
Good
3,584 reviews
Emirates
8.1
Very good
3,264 reviews

Overall

8.1

Food

7.8

Boarding

8.1

Comfort

8.0

Entertainment

8.2

Crew

8.3

Reviews

1 / 20
4.0
Okay

Anonymous,Dec 2024

IAD - DXB

Not so good. Flight was departed 2 hours late from DC and we missed our connecting flight from Dubai to Mumbai. Our flight Dubai to Mumbai got delayed by three hours. Once we arrived Bombay airport we didnot get all our luggage bags. We were missing two luggage bags so found out that our those two luggage bags are coming in different flight. First they gave us wrong flight information in which our missing luggage coming and wrong phone number to whom we should reach out. I spent hours and hours at the airport to find out our luggage bags. After four five hours later and hectic time at the airport to get our luggage bags. Overall poor communication with emirates staff at the airport and no one is helpful.

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.

  • What are the cheapest airlines flying from Boston to Kolkata round-trip?

    According to our current data, American Airlines ($1,120), SWISS ($1,127), and Lufthansa ($1,177) offers the cheapest pricing from Boston to Kolkata. American Airlines is priced at 12% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Boston to Kolkata one-way?

    To fly one-way, consider booking your trip with IndiGo, which is currently one of the cheapest options available, starting at $419. American Airlines flights start at $453 while deals on Singapore Airlines start at $613 one-way.

  • Where are the most common layover locations when flying from Boston to Kolkata?

    Most of the time, Boston to Kolkata flights that have layovers will stop in Abu Dhabi.

  • What are some popular things to do or see while on a layover in Abu Dhabi?

    Abu Dhabi travelers tend to visit Emirates Palace, Emirates Park Zoo, and Ferrari World Abu Dhabi more than anywhere else. Emirates Palace, Emirates Park Zoo, and Ferrari World Abu Dhabi can be accessed by traveling approximately 21.1 mi, 7.9 mi, and 4.5 mi, respectively from Abu Dhabi Zayed Intl. Travelers can rent a car at Abu Dhabi Zayed Intl for an average daily rate of $28 to make sightseeing during their layover a little easier.

  • Where are the least popular layover locations for Boston to Kolkata flights?

    The least popular layover on flights from Boston to Kolkata is Doha.

  • 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 vacation 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 $970). Flying from Boston to Kolkata in December is currently the most expensive (average of $1,647). 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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Alternative routes for Boston to Kolkata

See prices for flight routes from nearby airports that may be better suited for you.
Boston to Bagdogra flights

Top 7 airlines flying from Boston to Kolkata

Discover the top 7 airlines that operate flights from Boston to Kolkata. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$899Average$1,110FlexibilityNo cancel feeOn-time71%
Etihad AirwaysCheapest$920Average$1,206FlexibilityNo cancel feeOn-time75%
IndiGoCheapest$944Average$1,164FlexibilityNo cancel feeOn-time80%
Qatar AirwaysCheapest$972Average$1,378FlexibilityNo cancel feeOn-time68%
EmiratesCheapest$1,063Average$1,289FlexibilityNo cancel feeOn-time75%
SWISSCheapest$1,070Average$1,226FlexibilityNo cancel feeOn-time79%
LufthansaCheapest$1,189Average$1,303FlexibilityNo cancel feeOn-time76%

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