HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Kolkata

$399+ 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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CCU
Nov 26 — Dec 31
Wed 11/26
Wed 12/3
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Boston to Kolkata with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Boston Logan Intl to Kolkata Netaji S. Chandra are usually found in September or April, booked 47 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 October 27, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$779
(flugladen.de)

One-way from

$399
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$1,198
Provider with most accurate pricing for Boston Logan Intl-Kolkata Netaji S. Chandra flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Kolkata Netaji S. Chandra flights.
Search Deals
From Boston Logan Intl to Kolkata Netaji S. Chandra
Search Deals
One-way flight from Boston Logan Intl to Kolkata Netaji S. Chandra
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($92 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($46 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 October 27, 2025.

This flugladen.de deal was found by Cheapflights users on 10/26. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/103:40 pmBOS - CCU
2 stops46h 50mMultiple Airlines
Sun 11/234:15 pmCCU - BOS
2 stops56h 25mMultiple Airlines
Deal found 10/26$779
This Trip.com deal was found by Cheapflights users on 10/25. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/103:40 pmBOS - CCU
2 stops41h 05mMultiple Airlines
Tue 11/257:55 pmCCU - BOS
2 stops28h 45mMultiple Airlines
Deal found 10/25$799
This Booking.com deal was found by Cheapflights users on 10/26. 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.
Mon 11/108:00 pmBOS - CCU
2 stops35h 10mIndiGo
Tue 11/2510:30 pmCCU - BOS
2 stops30h 05mIndiGo
Deal found 10/26$842
This Trip.com deal was found by Cheapflights users on 10/26. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/89:50 pmBOS - CCU
2 stops40h 40mMultiple Airlines
Sun 11/164:15 pmCCU - BOS
2 stops36h 50mMultiple Airlines
Deal found 10/26$855
This Booking.com deal was found by Cheapflights users on 10/27. 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.
Tue 11/48:00 pmBOS - CCU
2 stops35h 10mIndiGo
Wed 11/1210:30 pmCCU - BOS
2 stops30h 05mIndiGo
Deal found 10/27$857
This Booking.com deal was found by Cheapflights users on 10/26. 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.
Mon 11/38:00 pmBOS - CCU
2 stops40h 20mIndiGo
Tue 11/117:30 pmCCU - BOS
2 stops33h 05mIndiGo
Deal found 10/26$871
This Mytrip deal was found by Cheapflights users on 10/26. 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.
Mon 11/38:00 pmBOS - CCU
2 stops40h 20mMultiple Airlines
Tue 11/112:55 pmCCU - BOS
3 stops33h 45mMultiple Airlines
Deal found 10/26$881
This Mytrip deal was found by Cheapflights users on 10/26. 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.
Tue 11/118:00 pmBOS - CCU
2 stops35h 10mMultiple Airlines
Tue 11/2512:30 amCCU - BOS
2 stops28h 05mMultiple Airlines
Deal found 10/26$884
This Booking.com deal was found by Cheapflights users on 10/25. 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.
Tue 11/258:00 pmBOS - CCU
2 stops37h 25mIndiGo
Wed 12/1010:30 pmCCU - BOS
2 stops30h 05mIndiGo
Deal found 10/25$896
This Mytrip deal was found by Cheapflights users on 10/25. 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.
Tue 11/253:40 pmBOS - CCU
2 stops22h 30mMultiple Airlines
Wed 12/103:00 pmCCU - BOS
3 stops33h 40mMultiple Airlines
Deal found 10/25$901

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 October 27, 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 11/8

8:00 pm-12:25 pm

2 stops29h 55m

Kolkata Netaji S. Chandra

Sun 11/16

2:10 pm-2:10 pm

3 stops34h 30m

$898

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Wed 1/14

3:40 pm-2:40 am

1 stop24h 30m

Kolkata Netaji S. Chandra

Sat 1/31

3:35 am-2:10 pm

1 stop21h 05m

$984

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Mon 1/12

3:40 pm-8:00 pm

1 stop17h 50m

Kolkata Netaji S. Chandra

Sun 2/1

8:55 pm-2:10 pm

1 stop27h 45m

$984

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Thu 1/15

3:40 pm-8:00 pm

1 stop17h 50m

Kolkata Netaji S. Chandra

Sun 2/1

8:55 pm-2:10 pm

1 stop27h 45m

$984

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Fri 1/23

3:40 pm-2:40 am

1 stop24h 30m

Kolkata Netaji S. Chandra

Wed 3/4

8:55 pm-2:10 pm

1 stop27h 45m

$984

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Mon 1/12

3:40 pm-8:00 pm

1 stop17h 50m

Kolkata Netaji S. Chandra

Thu 1/29

3:35 am-2:10 pm

1 stop21h 05m

$984

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Mon 11/10

3:40 pm-8:00 pm

1 stop17h 50m

Kolkata Netaji S. Chandra

Fri 12/19

3:35 am-2:10 pm

1 stop21h 05m

$1,025

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Thu 1/22

8:00 pm-8:15 pm

2 stops37h 45m

Kolkata Netaji S. Chandra

Fri 2/27

3:25 am-2:20 pm

1 stop21h 25m

$1,026

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Mon 11/10

8:00 pm-5:40 pm

2 stops35h 10m

Kolkata Netaji S. Chandra

Sun 11/23

9:15 am-1:55 pm

1 stop39h 10m

$1,062

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Mon 11/10

8:50 pm-7:45 am

2 stops24h 25m

Kolkata Netaji S. Chandra

Mon 12/22

9:30 pm-1:35 pm

2 stops26h 35m

$1,078

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/26

Showing 1-10 of 22 results
1
2
3

Compare providers for flights from Boston to Kolkata

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Kolkata in October.
ProviderPrice AccuracyTrust Score*
AranGrantPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boston-Kolkata flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Boston-Kolkata flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Boston-Kolkata flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Kolkata flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Kolkata flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 October 24, 2025.

Booking 47 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 $870). Flying from Boston to Kolkata in August is currently the most expensive (average of $1,246). 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 October 27, 2025.

It’s typically best to fly out from Boston to Kolkata in the evening. Doing so could potentially save you 45% on the flight price compared to flying in the morning, which is usually more expensive.

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 October 27, 2025.
Read reviews from past customers who have flown Emirates, Qatar Airways, and Etihad Airways from Boston to Kolkata. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Emirates
8.1
Very good
3,392 reviews

Crew

8.3

Entertainment

8.2

Boarding

8.1

Comfort

8.0

Overall

8.1

Food

7.9

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
3,392 reviews
Emirates
8.1
Very good
3,392 reviews

Crew

8.3

Entertainment

8.2

Boarding

8.1

Comfort

8.0

Overall

8.1

Food

7.9

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
3,658 reviews
Emirates
8.1
Very good
3,392 reviews

Crew

8.3

Entertainment

8.2

Boarding

8.1

Comfort

8.0

Overall

8.1

Food

7.9

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.
Etihad Airways
7.4
Good
1,283 reviews
Emirates
8.1
Very good
3,392 reviews

Crew

8.3

Entertainment

8.2

Boarding

8.1

Comfort

8.0

Overall

8.1

Food

7.9

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.
American Airlines
7.2
Good
11,033 reviews
Emirates
8.1
Very good
3,392 reviews

Crew

8.3

Entertainment

8.2

Boarding

8.1

Comfort

8.0

Overall

8.1

Food

7.9

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.
IndiGo
6.9
Okay
489 reviews
Emirates
8.1
Very good
3,392 reviews

Crew

8.3

Entertainment

8.2

Boarding

8.1

Comfort

8.0

Overall

8.1

Food

7.9

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.

  • How long is the flight from Boston to Kolkata?

    For as low as $984, Etihad Airways can have you in Kolkata from Boston in 24h 30m. Boston and Kolkata are separated by a distance of 7752 mi.

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

    According to our current data, IndiGo ($852), American Airlines ($899), and Etihad Airways ($920) offers the cheapest pricing from Boston to Kolkata. IndiGo is priced at 34% lower than the current average price of a flight leaving 3 months from now.

  • 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 Doha.

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

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

  • 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 $870). Flying from Boston to Kolkata in August is currently the most expensive (average of $1,246). 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

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.
Boston to Bagdogra flights

Top 6 airlines flying from Boston to Kolkata

Discover the top 6 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 October 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
IndiGoCheapest$852Average$1,116FlexibilityNo cancel feeOn-time80%
American AirlinesCheapest$899Average$1,060FlexibilityNo cancel feeOn-time71%
Etihad AirwaysCheapest$920Average$1,213FlexibilityNo cancel feeOn-time75%
Qatar AirwaysCheapest$999Average$1,330FlexibilityNo cancel feeOn-time68%
LufthansaCheapest$1,189Average$1,218FlexibilityNo cancel feeOn-time76%
EmiratesCheapest$1,216Average$1,373FlexibilityNo cancel feeOn-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.