Cheap Flights from Denver (DEN) to Kolkata (CCU)

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Compare Denver International to Kolkata flight deals

Find the cheapest month or even day of the year to fly to Kolkata

Book the best Kolkata fare with no extra fees

Flight deals from Denver International to Kolkata

Looking for a cheap last-minute deal or the best return flight from Denver International to Kolkata? Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Denver International to Kolkata

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Denver International to Kolkata flights are currently cheapest in June.

Denver International to Kolkata: Alternative routes

Compare routes from Denver International to Kolkata below. You may find an airport to fly into that's cheaper, faster, or easier than Kolkata.

Denver to Kolkata: Flight information

The things to know before you go.
Cheapest flight found$2,118
Cheapest month to flyJuly

Finding cheap flights from Denver International to Kolkata: Frequently asked questions

The best price we found for a return flight from Denver International to Kolkata is $2,118. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Denver International to Kolkata. But we found flights with one or more stops from $2,118.
As of May 2025, there are no flights flying from Denver International to Kolkata.
The cheapest month to fly from Denver International to Kolkata is usually May 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Denver International Airport to Kolkata Airport on Tuesday, 22 July 2025.
No airlines currently offer direct flights between Denver International Airport and Kolkata Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Kolkata but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Kolkata is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Qatar Airways offers the cheapest flight tickets to Kolkata.

Flying from Denver International Airport (DEN) to Netaji Subhas Chandra Bose Airport (CCU): what you need to know

  • Kolkata is 11 hours 30 minutes ahead of Denver and observes the UTC+5:30 timezone.

  • Arrive at the airport on time so you don't miss your DEN to CCU flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to prevent a last-minute sprint to your gate.

  • Travelling during a peak month such as July? Major public holidays and other popular seasons can lead to longer queues and delays at airport checkpoints. Be extra cautious and get there up to four hours before international flights and two hours before a domestic departure.

How to find the cheapest flights from Denver International Airport (DEN) to Netaji Subhas Chandra Bose Airport (CCU)

  • Right now, $830 is the cheapest price we've found for a one-way Denver International Airport to Netaji Subhas Chandra Bose Airport flight. The best price for a return ticket is $2,118. Remember that fares can change due to availability at the time of booking.

  • It's often best to book ahead of time if you want to get cheap tickets from DEN to CCU. That's because airlines adjust prices based on demand, which tends to increase closer to the date of departure.

  • The 'Whole month' search function shows you the cheapest flights from Denver International Airport to Netaji Subhas Chandra Bose Airport across the entire month. It's a great way to find a bargain if your trip dates aren't set in stone.

  • Snapping up cheap flights from DEN to CCU couldn't be easier with Price Alerts. All you need to do is set up one of these automatic alerts and we'll notify you when a new discounted fare appears.

  • Select your ideal arrival and departure times, airlines and number of stops with the filters. Alternatively, sort your results by 'Cheapest' to find the best deals on flights from Denver International Airport to Netaji Subhas Chandra Bose Airport.

Handy information about Denver International Airport (DEN)

  • You'll find DEN at 8500 Pena Boulevard.

  • 80.23% of flights leaving Denver International Airport land at their destination as planned. Given its impressive on-time stats, you're unlikely to be delayed when taking off from DEN.

  • Central Denver to Denver International Airport is approximately 40 kilometres. Depending on traffic, it'll take about 35 minutes to get there if you're ride-sharing, catching a cab or driving.

  • The journey on public transport typically takes 1 hour 30 minutes.

  • Booking a hotel room for the night can take the hassle out of reaching the airport on time. If you want a place to stay before your flight from Denver International Airport to Netaji Subhas Chandra Bose Airport, check out Baymont by Wyndham Denver International Airport. It's a short drive from DEN.

Arriving at Netaji Subhas Chandra Bose Airport (CCU)

Getting from Netaji Subhas Chandra Bose Airport (CCU) to central Kolkata

  • Netaji Subhas Chandra Bose Airport is approximately 16 kilometres from central Kolkata. Driving there takes about 40 minutes.

  • Travelling to the centre by public transport takes roughly 55 minutes.

When to fly to Netaji Subhas Chandra Bose Airport (CCU)

  • It's time to plan your dates for your flight from Denver International Airport to Netaji Subhas Chandra Bose Airport. July is the busiest month to head to Kolkata. If you want a more relaxed vibe, go in April.

  • The warmest month in Kolkata is April, with the temperature ranging between 24ºC (75ºF) and 42ºC (108ºF). Book your flights from Denver International Airport to Netaji Subhas Chandra Bose Airport in this month if this is the kind of weather you like.

  • If you'd rather travel in cooler conditions, search for a cheap ticket from DEN to CCU in January. Average temperatures are between 15ºC (59ºF) and 29ºC (84ºF) then.

Explore more of India

  • Kolkata has its own special appeal, but there are so many other parts of India just waiting to be explored. About 467 kilometres north-west of Kolkata, a visit to Patna will keep you busy. Check out popular attractions like Mahatma Gandhi Setu, Bihar Museum and Golghar.

  • If you want to check out another major stop in India, head for Ranchi, roughly 322 kilometres west of Kolkata. Rock Garden, Jagannath Temple and Deer Park are among its highlights.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.