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Cheap flights from Boston to Kolkata from $401

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Kolkata departing on 8/20. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Boston to Kolkata (BOS-CCU)

Cheap round-trip flights

IndiGo Logo
9:35 pm - 8:15 pmBOS-CCU
37h 10m2 stops
IndiGo Logo
10:30 pm - 7:40 pmCCU-BOS
30h 40m2 stops
$829IndiGo
Find Deal
Thu, Sep 11 - Thu, Sep 18
American Airlines Logo
1:00 pm - 4:45 amBOS-CCU
30h 15m2 stops
American Airlines Logo
6:00 pm - 12:16 pmCCU-BOS
27h 46m2 stops
$842American Airlines
Find Deal
Wed, Sep 10 - Wed, Sep 17
IndiGo Logo
9:35 pm - 11:10 pmBOS-CCU
40h 05m2 stops
IndiGo Logo
10:30 pm - 7:40 pmCCU-BOS
30h 40m2 stops
$849IndiGo
Find Deal
Fri, Sep 12 - Fri, Sep 19
Air India Logo
5:23 am - 12:10 amBOS-CCU
33h 17m2 stops
Air India Logo
6:45 pm - 11:25 pmCCU-BOS
38h 10m3 stops
$876Air India
Find Deal
Thu, Sep 11 - Thu, Sep 18
Logo
4:30 pm - 3:30 amBOS-CCU
25h 30m2 stops
Logo
9:05 pm - 2:55 pmCCU-BOS
27h 20m2 stops
$881
Find Deal
Fri, Sep 12 - Sat, Sep 27
Logo
4:30 pm - 1:45 pmBOS-CCU
35h 45m2 stops
Logo
9:15 pm - 2:55 pmCCU-BOS
27h 10m2 stops
$885
Find Deal
Wed, Sep 24 - Sat, Oct 11
Air India Logo
7:08 am - 9:35 pmBOS-CCU
28h 57m2 stops
Air India Logo
12:40 pm - 4:49 pmCCU-BOS
37h 39m2 stops
$890Air India
Find Deal
Thu, Sep 18 - Fri, Sep 26
Air India Logo
7:08 am - 6:05 pmBOS-CCU
25h 27m2 stops
Air India Logo
5:30 pm - 11:45 amCCU-BOS
27h 45m2 stops
$898Air India
Find Deal
Fri, Sep 12 - Sat, Sep 27
American Airlines Logo
9:04 am - 4:45 amBOS-CCU
34h 11m2 stops
American Airlines Logo
6:00 pm - 12:16 pmCCU-BOS
27h 46m2 stops
$932American Airlines
Find Deal
Thu, Aug 28 - Thu, Sep 4
Turkish Airlines Logo
8:00 pm - 3:50 pmBOS-CCU
33h 20m2 stops
Turkish Airlines Logo
8:45 pm - 6:05 pmCCU-BOS
31h 50m2 stops
$1,052Turkish Airlines
Find Deal
Fri, Jan 2 - Sat, Jan 24

Air India flights from Boston to Kolkata

Our best Air India deals on Boston to Kolkata flight tickets
Air India
Sep 11
BOS5:23 amBoston Logan Intl
33h 17m
2 stops
CCU12:10 amKolkata Netaji S. Chandra
Sep 18
CCU6:45 pmKolkata Netaji S. Chandra
38h 10m
3 stops
BOS11:25 pmBoston Logan Intl
$876
Find similar
Air India
Sep 18
BOS7:08 amBoston Logan Intl
28h 57m
2 stops
CCU9:35 pmKolkata Netaji S. Chandra
Sep 26
CCU12:40 pmKolkata Netaji S. Chandra
37h 39m
2 stops
BOS4:49 pmBoston Logan Intl
$890
Find similar
Air India
Sep 12
BOS7:08 amBoston Logan Intl
25h 27m
2 stops
CCU6:05 pmKolkata Netaji S. Chandra
Sep 27
CCU5:30 pmKolkata Netaji S. Chandra
27h 45m
2 stops
BOS11:45 amBoston Logan Intl
$898
Find similar

IndiGo flights from Boston to Kolkata

Our best IndiGo deals on Boston to Kolkata flight tickets
IndiGo
Sep 11
BOS9:35 pmBoston Logan Intl
37h 10m
2 stops
CCU8:15 pmKolkata Netaji S. Chandra
Sep 18
CCU10:30 pmKolkata Netaji S. Chandra
30h 40m
2 stops
BOS7:40 pmBoston Logan Intl
$829
Find similar
IndiGo
Sep 12
BOS9:35 pmBoston Logan Intl
40h 05m
2 stops
CCU11:10 pmKolkata Netaji S. Chandra
Sep 19
CCU10:30 pmKolkata Netaji S. Chandra
30h 40m
2 stops
BOS7:40 pmBoston Logan Intl
$849
Find similar
IndiGo
Oct 4
BOS9:35 pmBoston Logan Intl
29h 50m
2 stops
CCU12:55 pmKolkata Netaji S. Chandra
Oct 12
CCU9:15 pmKolkata Netaji S. Chandra
31h 55m
2 stops
BOS7:40 pmBoston Logan Intl
$902
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated August 14, 2025.
Use the filters below to find and compare flights from Boston to Kolkata that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Thu 9/11

9:35 pm-8:15 pm

2 stops37h 10m

Kolkata Netaji S. Chandra

Thu 9/18

10:30 pm-7:40 pm

2 stops30h 40m

$829

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Wed 9/10

1:00 pm-4:45 am

2 stops30h 15m

Kolkata Netaji S. Chandra

Wed 9/17

6:00 pm-12:16 pm

2 stops27h 46m

$842

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Fri 9/12

9:35 pm-11:10 pm

2 stops40h 05m

Kolkata Netaji S. Chandra

Fri 9/19

10:30 pm-7:40 pm

2 stops30h 40m

$849

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Thu 9/11

5:23 am-12:10 am

2 stops33h 17m

Kolkata Netaji S. Chandra

Thu 9/18

6:45 pm-11:25 pm

3 stops38h 10m

$876

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Fri 9/12

4:30 pm-3:30 am

2 stops25h 30m

Kolkata Netaji S. Chandra

Sat 9/27

9:05 pm-2:55 pm

2 stops27h 20m

$881

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Wed 9/24

4:30 pm-1:45 pm

2 stops35h 45m

Kolkata Netaji S. Chandra

Sat 10/11

9:15 pm-2:55 pm

2 stops27h 10m

$885

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Thu 9/18

7:08 am-9:35 pm

2 stops28h 57m

Kolkata Netaji S. Chandra

Fri 9/26

12:40 pm-4:49 pm

2 stops37h 39m

$890

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Fri 9/12

7:08 am-6:05 pm

2 stops25h 27m

Kolkata Netaji S. Chandra

Sat 9/27

5:30 pm-11:45 am

2 stops27h 45m

$898

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Thu 8/28

9:04 am-4:45 am

2 stops34h 11m

Kolkata Netaji S. Chandra

Thu 9/4

6:00 pm-12:16 pm

2 stops27h 46m

$932

BostonKolkata

BOS - CCU

BOSCCU

Boston Logan Intl

Fri 1/2

8:00 pm-3:50 pm

2 stops33h 20m

Kolkata Netaji S. Chandra

Sat 1/24

8:45 pm-6:05 pm

2 stops31h 50m

$1,052

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Kolkata from

How to get the cheapest flight ticket from Boston to Kolkata

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Kolkata?

The month of September is, on average, the cheapest month to fly to Kolkata from Boston, with most prices found around $1,114. If you aren’t able to travel during the month of September, then book flights to Kolkata from Boston during November instead. Flights to Kolkata in November, while not as cheap as those in September, still average around $1,130.

What is the cheapest day to depart on your flight to Kolkata?

On average, the least expensive day to fly to Kolkata from Boston is on a Sunday. momondo users have found tickets for Sunday departures for as low as $1,253. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Kolkata on Saturday is $1,306.

What is the cheapest time of day to depart on your flight to Kolkata?

In the afternoon is the cheapest time of day to fly from Boston to Kolkata when you can find flight prices for as low as $1,228. Flying to Kolkata in the afternoon is an ideal time because this is during off-peak travel hours. Flights to Kolkata are more costly at noon, with an average ticket price of $1,293. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Boston Logan Intl to Kolkata Netaji S. Chandra flight route?

Fly from Boston Logan Intl to Kolkata Netaji S. Chandra for the best Boston Logan Intl - Kolkata Netaji S. Chandra flight prices

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

You are more likely to see cheaper flights to Kolkata from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Kolkata for around $1,288 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Kolkata from Boston for as low as $1,147 on momondo.

What cabin class options are available on Boston Logan Intl to Kolkata Netaji S. Chandra flights?

There are 1 cabin classes available to choose from on Boston Logan Intl to Kolkata Netaji S. Chandra flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Boston to Kolkata flights?

You could potentially save up to 12% on your flight if you consider stops on a Boston to Kolkata flight.

How have Boston to Kolkata flight prices changed over time?

As of August 2025, prices for Boston to Kolkata flights are approximately 31% more expensive when compared to flights at the same time last year.

When to book flights from Boston to Kolkata

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Kolkata according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boston to Kolkata (BOS to CCU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Kolkata

Best Price Found

$401

Fastest flight time

18h 35m

Direct flights

None

Airports in Kolkata

1 airport
The best one-way flight to Kolkata from Boston in the past 72 hours is $401. The best round-trip flight deal from Boston to Kolkata found on momondo in the last 72 hours is $829.
The fastest flight from Boston to Kolkata takes 18h 35m
There are no direct flights from Boston to Kolkata. Popular non-direct route for this connection is Boston Logan Intl Airport - Kolkata Netaji S. Chandra Airport.
There is 1 airport near Kolkata: Kolkata Netaji S. Chandra (CCU)
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  • How far is Boston Logan Intl to Kolkata Netaji S. Chandra by plane?

    Kolkata Netaji S. Chandra is 7757.3 mi away from Boston Logan Intl. By plane, this route typically takes 21h 30m.

  • When did momondo last update prices for flights from Boston Logan Intl Airport to Kolkata Netaji S. Chandra Airport?

    Prices for flights from Boston Logan Intl Airport to Kolkata Netaji S. Chandra Airport refresh daily.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to Kolkata Netaji S. Chandra Airport?

  • How old do you have to be to fly from Boston Logan Intl Airport to Kolkata Netaji S. Chandra Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Boston Logan Intl Airport to Kolkata Netaji S. Chandra Airport.

  • What documentation or ID do you need to fly to Kolkata Netaji S. Chandra Airport?

    The travel and health documents required for your trip to Kolkata Netaji S. Chandra Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Kolkata Netaji S. Chandra Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular airline from Boston to Kolkata?

Best airlines flying from Boston to Kolkata

Compare and see reviews for airlines that fly from Boston to Kolkata with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $899Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Etihad AirwaysPriceFrom $921Free CancellationRating
7.4
1,232 reviews
Search Etihad Airways flights
IndiGoPriceFrom $944Free CancellationRating
6.8
479 reviews
Search IndiGo flights
Qatar AirwaysPriceFrom $1,043Free CancellationRating
7.4
3,608 reviews
Search Qatar Airways flights
EmiratesPriceFrom $1,063Free CancellationRating
8.1
3,315 reviews
Search Emirates flights
LufthansaPriceFrom $1,189Free CancellationRating
6.8
7,317 reviews
Search Lufthansa flights

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Kolkata?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Kolkata from Boston.

Can I find flights from Boston to Kolkata with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Boston to Kolkata flights to just show those with flexible booking policies.

How can momondo help me find flights from Boston to Kolkata?

Once all potential Boston to Kolkata flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Boston to Kolkata right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Kolkata from Boston. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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