$402 Cheap Flights from Washington (IAD) to Kolkata (CCU)

View $402 flight on Wed, Aug 6, 2025Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Netaji Subhash Chandra Bose Intl. Airport (CCU)

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Cheap Flights from Washington to Kolkata (IAD-CCU)

Prices were available within the past 7 days and start at $402 for one-way flights and $730 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air India
Fri, Sep 19 - Sat, Oct 11
IAD
Washington
CCU
Kolkata
$730 Roundtrip, found 5 hours ago
$730
Roundtrip
found 5 hours ago
Select Air India flight, departing Fri, Sep 19 from Washington to Kolkata, returning Sat, Oct 11, priced at $730 found 5 hours ago
Air India
Tue, Nov 11 - Thu, Dec 11
IAD
Washington
CCU
Kolkata
$759 Roundtrip, just found
$759
Roundtrip
just found
Select Air India flight, departing Tue, Nov 11 from Washington to Kolkata, returning Thu, Dec 11, priced at $759 just found
Air India
Sun, Nov 16 - Thu, Dec 25
IAD
Washington
CCU
Kolkata
$787 Roundtrip, found 12 hours ago
$787
Roundtrip
found 12 hours ago
Select Air India flight, departing Sun, Nov 16 from Washington to Kolkata, returning Thu, Dec 25, priced at $787 found 12 hours ago
Air India
Fri, Sep 12 - Mon, Oct 27
IAD
Washington
CCU
Kolkata
$790 Roundtrip, found 1 day ago
$790
Roundtrip
found 1 day ago
Select Air India flight, departing Fri, Sep 12 from Washington to Kolkata, returning Mon, Oct 27, priced at $790 found 1 day ago
Air India
Sun, Feb 1 - Thu, Feb 12
IAD
Washington
CCU
Kolkata
$792 Roundtrip, found 4 hours ago
$792
Roundtrip
found 4 hours ago
Select Air India flight, departing Sun, Feb 1 from Washington to Kolkata, returning Thu, Feb 12, priced at $792 found 4 hours ago
Air India
Fri, Aug 29 - Sat, Sep 13
IAD
Washington
CCU
Kolkata
$796 Roundtrip, found 13 hours ago
$796
Roundtrip
found 13 hours ago
Select Air India flight, departing Fri, Aug 29 from Washington to Kolkata, returning Sat, Sep 13, priced at $796 found 13 hours ago
Lufthansa
Mon, Sep 1 - Mon, Sep 15
IAD
Washington
CCU
Kolkata
$833 Roundtrip, found 16 hours ago
$833
Roundtrip
found 16 hours ago
Select Lufthansa flight, departing Mon, Sep 1 from Washington to Kolkata, returning Mon, Sep 15, priced at $833 found 16 hours ago
Etihad Airways
Mon, Sep 1 - Fri, Oct 31
IAD
Washington
CCU
Kolkata
$903 Roundtrip, found 7 hours ago
$903
Roundtrip
found 7 hours ago
Select Etihad Airways flight, departing Mon, Sep 1 from Washington to Kolkata, returning Fri, Oct 31, priced at $903 found 7 hours ago
Swiss International Air Lines
Mon, Sep 1 - Mon, Feb 9
IAD
Washington
CCU
Kolkata
$907 Roundtrip, found 2 days ago
$907
Roundtrip
found 2 days ago
Select Swiss International Air Lines flight, departing Mon, Sep 1 from Washington to Kolkata, returning Mon, Feb 9, priced at $907 found 2 days ago
Emirates
Mon, Sep 1 - Fri, Oct 31
IAD
Washington
CCU
Kolkata
$1,003 Roundtrip, found 7 hours ago
$1,003
Roundtrip
found 7 hours ago
Select Emirates flight, departing Mon, Sep 1 from Washington to Kolkata, returning Fri, Oct 31, priced at $1,003 found 7 hours ago

Find the cheapest month to fly from Washington (IAD) to Kolkata (CCU)

September is typically the cheapest month to fly

From $730 - $1,197 per traveler.

Graph displaying average flight prices per month

Alternative airports near Kolkata

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Netaji Subhash Chandra Bose Intl. CCU. Cheapest and Closest option available. Average driving time to city center is 15 minutes. Flights from $730
CCU
Netaji Subhash Chandra Bose Intl.
CheapestClosest
Average driving time to city center15 min
Flights from $730
Flights from Washington (IAD) to Kolkata (CCU)
Origin airport
Washington Dulles Intl.
Destination airport
Netaji Subhash Chandra Bose Intl.
Airlines serving
Air France, Air India, British Airways, Emirates, Etihad Airways, KLM, Lufthansa, Malaysia Airlines, Qatar Airways, Singapore Airlines, Swiss International Air Lines, Turkish Airlines, Virgin Atlantic
Roundtrip price
$729
Distance
8083 mi

Washington to Kolkata Flights

The cheapest times to fly from Washington to Kolkata

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to Kolkata are during the month of September. You can find some of the cheapest flights from Washington to Kolkata with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Kolkata

Sunday is one of the best days to book for cheap flights from Washington to Kolkata: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Washington to Kolkata

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to Kolkata in 2025. You can also book with separate airlines for your outbound and return journeys, from $402 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to Kolkata flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Washington to Kolkata airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Washington Dulles Intl. Airport (IAD) to Netaji Subhash Chandra Bose Intl. Airport (CCU) cost?
Discover the latest flight deals from IAD to CCU by entering your preferred travel dates and searching on Expedia. Easily compare prices by departure date if you have flexibility with your schedule and use handy filters to explore prices for your preferred journey. As a member of One Key™, our free loyalty program, you can use Price Tracking to watch fares and receive notifications if prices go up or down.
What is the cheapest month to fly from IAD to CCU?
The cheapest flights from IAD to CCU are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
What is the cheapest airline that flies from IAD to CCU?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from IAD to CCU. Sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Washington Dulles Intl. Airport (IAD) to Netaji Subhash Chandra Bose Intl. Airport (CCU)?
You'll have to take a flight with a layover if you're traveling from Washington Dulles Intl. Airport (IAD) to Netaji Subhash Chandra Bose Intl. Airport (CCU). Direct flights don't operate daily on this route. However, simply filter your search to include one or two stops to find the best option for your trip.
What day of the week has the most flights from IAD to CCU?
Generally you'll find the greatest selection of flight options on a Friday. Tuesdays are often the quietest.* However, this can change depending on the season, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Washington Dulles Intl. Airport (IAD) to Netaji Subhash Chandra Bose Intl. Airport (CCU)?
To reach Netaji Subhash Chandra Bose Intl. Airport (CCU) on time, opt for a flight that takes off from Washington Dulles Intl. Airport (IAD) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Washington Dulles Intl. Airport (IAD) to Netaji Subhash Chandra Bose Intl. Airport (CCU) last-minute?
Booking your ticket from IAD to CCU right before your journey is typically more expensive. But if there's some wiggle room with your departure times and dates, you could snag a cheap last-minute fare.
Is it cheaper to book an IAD to CCU flight and hotel package?
Compared with arranging flights and hotels separately, booking an IAD to CCU flight and hotel package with Expedia could lead to significant savings. Better yet, managing everything in one place will take the hassle out of travel planning. Just secure your flights and select from our wide range of stays, then tailor your trip with extras like activities and car rentals.
Can I cancel or change the date of my flight from Washington Dulles Intl. Airport (IAD) to Netaji Subhash Chandra Bose Intl. Airport (CCU)?
You can usually reschedule or cancel your IAD to CCU flight. However, for bookings made more than 24 hours ago, additional fees may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find further details on our Customer Service portal.

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*Available to One Key members.