Kolkata

$405+ 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 8/17. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — CCU
Aug 3 — Aug 101
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 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 July 29, 2025.

Round-trip from

$834
(Booking.com)

One-way from

$405
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$1,372
From Boston Logan Intl to Kolkata Netaji S. Chandra
One-way flight from Boston Logan Intl to Kolkata Netaji S. Chandra
Highest demand for flights based on searches. 6% potential increase in price ($92 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($47 potential savings vs. average RT price).
Average for round-trip flights in July 2025

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 July 29, 2025.

This Booking.com deal was found by Cheapflights users on 7/27. 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.
Wed 9/109:35 pmBOS - CCU
2 stops40h 05mIndiGo
Wed 9/177:05 pmCCU - BOS
2 stops34h 05mIndiGo
Deal found 7/27$834
This oojo deal was found by Cheapflights users on 7/28. 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.
Fri 9/127:08 amBOS - CCU
2 stops22h 27mAir India
Fri 9/197:55 pmCCU - BOS
2 stops25h 20mAir India
Deal found 7/28$857
This American Airlines deal was found by Cheapflights users on 7/28. 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.
Sun 8/179:04 amBOS - CCU
2 stops34h 11mAmerican Airlines
Wed 9/106:00 pmCCU - BOS
2 stops29h 53mAmerican Airlines
Deal found 7/28$869
This Gotogate deal was found by Cheapflights users on 7/27. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/109:35 pmBOS - CCU
2 stops40h 05mMultiple Airlines
Wed 9/174:00 amCCU - BOS
1 stop20h 25mMultiple Airlines
Deal found 7/27$891
This deal was found by Cheapflights users on 7/28. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/79:05 pmBOS - CCU
1 stop18h 20mQatar Airways
Fri 11/213:25 amCCU - BOS
1 stop21h 00mQatar Airways
Deal found 7/28$960
This FlightHub deal was found by Cheapflights users on 7/28. 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.
Sun 8/179:35 pmBOS - CCU
2 stops29h 50mTurkish Airlines
Sun 9/1410:30 pmCCU - BOS
2 stops30h 40mTurkish Airlines
Deal found 7/28$980

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 July 29, 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

Wed 9/10

9:35 pm-11:10 pm

2 stops40h 05m

Kolkata Netaji S. Chandra

Wed 9/17

7:05 pm-7:40 pm

2 stops34h 05m

$834

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Fri 9/12

7:08 am-3:05 pm

2 stops22h 27m

Kolkata Netaji S. Chandra

Fri 9/19

7:55 pm-11:45 am

2 stops25h 20m

$857

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Sun 8/17

9:04 am-4:45 am

2 stops34h 11m

Kolkata Netaji S. Chandra

Wed 9/10

6:00 pm-2:23 pm

2 stops29h 53m

$869

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Wed 9/10

9:35 pm-11:10 pm

2 stops40h 05m

Kolkata Netaji S. Chandra

Wed 9/17

4:00 am-2:55 pm

1 stop20h 25m

$891

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Sun 8/17

9:35 pm-12:55 pm

2 stops29h 50m

Kolkata Netaji S. Chandra

Sun 9/14

10:30 pm-7:40 pm

2 stops30h 40m

$980

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Sun 8/17

4:30 pm-5:30 am

2 stops27h 30m

$405

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Fri 9/26

9:35 pm-8:15 pm

2 stops37h 10m

$469

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Mon 8/11

4:30 pm-3:00 am

1 stop25h 00m

$619

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Wed 9/24

10:00 pm-2:20 am

1 stop18h 50m

$786

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Fri 10/10

1:15 pm-9:20 am

3 stops34h 35m

$1,507

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/28

Showing 1-10 of 11 results
1
2

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 July 25, 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 $965). 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 July 29, 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.

How much does it cost to fly round-trip from Boston to Kolkata?

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 July 29, 2025.
Read reviews from past customers who have flown Singapore Airlines, KLM, and Qatar 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.

Crew

8.6

Boarding

8.2

Entertainment

8.0

Comfort

7.9

Food

7.7

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered

Crew

8.6

Boarding

8.2

Entertainment

8.0

Comfort

7.9

Food

7.7

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered

Crew

8.6

Boarding

8.2

Entertainment

8.0

Comfort

7.9

Food

7.7

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered

Crew

8.6

Boarding

8.2

Entertainment

8.0

Comfort

7.9

Food

7.7

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered

Crew

8.6

Boarding

8.2

Entertainment

8.0

Comfort

7.9

Food

7.7

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered

Crew

8.6

Boarding

8.2

Entertainment

8.0

Comfort

7.9

Food

7.7

Overall

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

DAD - SIN

Person in front laid back his seat. I’m quite tall found it difficult to sit straight lucky seat next to me was empty was able to stretch my legs. Eating my meal was difficult also as seat remained lowered

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, IndiGo ($834), Air India ($857), and American Airlines ($869) offers the cheapest pricing from Boston to Kolkata. IndiGo is priced at 35% 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 $469. Etihad Airways flights start at $619 while deals on Qatar Airways start at $786 one-way.

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

  • 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 $25 to make sightseeing during their layover a little easier.

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

  • 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 $965). 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

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 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 July 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$899Average$1,105FlexibilityNo cancel feeOn-time71%
Etihad AirwaysCheapest$921Average$1,202FlexibilityNo cancel feeOn-time75%
IndiGoCheapest$944Average$1,116FlexibilityNo cancel feeOn-time80%
Qatar AirwaysCheapest$1,041Average$1,404FlexibilityNo cancel feeOn-time68%
EmiratesCheapest$1,063Average$1,286FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$1,189Average$1,299FlexibilityNo cancel feeOn-time76%

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.