DEN - CCU

$971 Find Cheap Flights from Denver to Kolkata

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Denver to Kolkata departing on 10/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Kolkata

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Kolkata, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Denver to Kolkata, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Denver to Kolkata (DEN-CCU)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Denver to Kolkata that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Denver to Kolkata

Sat, Oct 4 - Tue, Oct 28
Air India Logo
11:25 am - 4:50 pmDEN-CCU
41h 55m2 stops
Air India Logo
8:55 pm - 11:05 amCCU-DEN
49h 40m2 stops
$971Air India
Find Deal
Fri, Oct 3 - Sun, Oct 26
Air India Logo
11:59 pm - 9:35 pmDEN-CCU
34h 06m2 stops
Air India Logo
9:55 am - 11:05 amCCU-DEN
60h 40m2 stops
$1,019Air India
Find Deal
Mon, Sep 29 - Mon, Nov 3
Multiple Airlines Logo
11:59 pm - 8:35 pmDEN-CCU
33h 06m2 stops
Multiple Airlines Logo
8:55 pm - 3:51 pmCCU-DEN
31h 26m2 stops
$1,051Multiple Airlines
Find Deal
Tue, Sep 30 - Sun, Nov 2
Qatar Airways Logo
11:29 am - 2:20 amDEN-CCU
27h 21m2 stops
Qatar Airways Logo
3:25 am - 9:48 pmCCU-DEN
30h 53m2 stops
$1,056Qatar Airways
Find Deal
Mon, Sep 29 - Mon, Nov 3
Multiple Airlines Logo
11:59 pm - 8:35 pmDEN-CCU
33h 06m2 stops
Multiple Airlines Logo
8:55 pm - 3:51 pmCCU-DEN
31h 26m2 stops
$1,061Multiple Airlines
Find Deal
Wed, Jan 14 - Tue, Mar 10
Qatar Airways Logo
9:15 am - 1:55 amDEN-CCU
28h 10m2 stops
Qatar Airways Logo
3:25 am - 9:51 pmCCU-DEN
29h 56m2 stops
$1,062Qatar Airways
Find Deal
Sun, Jan 18 - Wed, Mar 11
Etihad Airways Logo
12:00 pm - 2:40 amDEN-CCU
50h 10m2 stops
Etihad Airways Logo
8:55 pm - 11:04 pmCCU-DEN
37h 39m2 stops
$1,073Etihad Airways
Find Deal
Sat, Jan 10 - Wed, Feb 25
Etihad Airways Logo
12:00 pm - 8:00 pmDEN-CCU
43h 30m2 stops
Etihad Airways Logo
8:55 pm - 11:04 pmCCU-DEN
38h 39m2 stops
$1,127Etihad Airways
Find Deal
Wed, Jan 14 - Sat, Feb 28
Singapore Airlines Logo
5:37 pm - 10:25 pmDEN-CCU
40h 18m2 stops
Singapore Airlines Logo
11:40 pm - 11:35 pmCCU-DEN
36h 25m3 stops
$1,182Singapore Airlines
Find Deal
Thu, Jan 15 - Wed, Mar 11
Singapore Airlines Logo
5:37 pm - 10:25 pmDEN-CCU
40h 18m2 stops
Singapore Airlines Logo
11:40 pm - 5:50 pmCCU-DEN
29h 40m3 stops
$1,206Singapore Airlines
Find Deal

Everything you should know

Top airlines
Air India
Cheapest • from $971 (round-trip)
Qatar Airways
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
April
Cheapest • 29% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$971
Overall average: $1,379
Air India
Sat 10/4Tue 10/28
DEN - CCU • 2 stops
Cheapest one-way
Multiple Airlines
Tue 9/16
DEN - CCU • multi-stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Kolkata!
Booking Insights

KAYAK's insights & trends for Denver to Kolkata flights

Get data-powered insights and trends into flights from Denver to Kolkata to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Denver to Kolkata?

The average price of all round-trip flights from Denver to Kolkata clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Denver to Kolkata, look for departures on Wednesdays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from Kolkata, Tuesday is the cheapest day to fly and Monday is the most expensive.

What is the cheapest month to fly from Denver to Kolkata?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Denver to Kolkata, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Denver to Kolkata is April, where tickets cost $988 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $2,027 and $1,707 respectively.

Good to know

Low seasonApril
Cheapest flight$971
Best time to beat the crowds with an average 29% drop in price.
Most popular time to fly with an average 45% increase in price.
Flight from Denver to Kolkata

When to book flights from Denver to Kolkata

Are your dates flexible? Find out the best times to travel from Denver to Kolkata based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Denver to Kolkata

  • What is the cheapest flight from Denver to Kolkata?

    In the last 3 days, the lowest price for a flight from Denver to Kolkata was $971 for a round-trip ticket.

  • Do I need a passport to fly between Denver and Kolkata?

    A passport is required to fly from Denver to Kolkata.

  • Which airports will I be using when flying from Denver to Kolkata?

    Denver and Kolkata are both served by 1 main airport. You will leave Denver from Denver Intl and will be arriving at Kolkata Netaji S. Chandra.

  • Which aircraft models fly most regularly from Denver to Kolkata?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Denver to Kolkata?

    Star Alliance, and oneworld are the airline alliances operating flights between Denver and Kolkata, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Denver to Kolkata, Qatar Airways or Etihad Airways?

    The two airlines most popular with KAYAK users for flights from Denver to Kolkata are Qatar Airways and Etihad Airways. With an average price for the route of $1,404 and an overall rating of 7.4, Qatar Airways is the most popular choice. Etihad Airways is also a great choice for the route, with an average price of $1,298 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Denver to Kolkata?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Denver to Kolkata.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Denver to Kolkata?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Kolkata from Denver is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Denver to Kolkata?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Kolkata with an airline and back to Denver with another airline. Booking your flights between Denver and CCU can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Denver to Kolkata?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Kolkata from Denver up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 3 airlines serving from Denver to Kolkata

 
See real verified KAYAK customer reviews for airlines flying from Denver to Kolkata. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Denver to Kolkata? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
Qatar AirwaysOverall score based on 3624 reviews
7.4Comfort
7.5Boarding
7.4Entertainment
7.3Food
7.9Crew
Airline reviews

My entire row did not have power for the full duration of a 14.5 hour flight. Could not charge any devices such as laptop or phones for the entirety of the long flight. The flight attendants tried to remedy the issue by resetting the power, but were not successful. The only other solution provided was to move me to another seat on the plane which was in the middle row. I had paid for a “preferred” seat that was a window seat. This was a downgrade being offered due to the power issue.

2.0 MediocreAnonymous, Sep 2025SEA - DOH
Read more Qatar Airways reviews

My entire row did not have power for the full duration of a 14.5 hour flight. Could not charge any devices such as laptop or phones for the entirety of the long flight. The flight attendants tried to remedy the issue by resetting the power, but were not successful. The only other solution provided was to move me to another seat on the plane which was in the middle row. I had paid for a “preferred” seat that was a window seat. This was a downgrade being offered due to the power issue.

Nothing to complain. The staff and flight was good especially the seats which was better compared than the cloth ones on Qatar airways

Economy travel is really hard with no room to move especially when the person sitting beside you is an XL or XXL size person who if moving could hit your face

I was travelling 3.5 years after. Agree Economy is no business class but the food was mediocre. Ordered a Hindu meal, the salads were bitter . The food was really below quality and had no tast from what I had in the past. Indian Railways probably have a better quality food when compared. However the kids meal was really nice and really appreciate how they were taken care of. The restrooms were dirty .

My flight was with American Airlines 120. The flight was delayed 3 hours and I missed my connection. When I arrived in Doha, the AA staff told me to call an 800 number to rebook a different flight, which was unacceptable. Eventually a Qatar Air staff member helped rebook me on a flight to Manila, that was 12 hours later. They offered me a hotel and meal voucher which I declined, because I didn’t want to leave the airport. Long story short, I spent 12 hours in the Doha airport waiting for my next flight.

Overall the experience was neat with crew being nice and caring especially to parent with kids. The free snacks option was okay. The kiosk at Philly airport didn’t work.

Reason for travelling Tampa to Orlando is to fly Qatar Airline. we end up with American Airline. This was the miserable experience I ever had in my entire travel history. Flight attendants were rude. They hit my knee with the food cart and I was holding ice pack for 2 hours. I still have the pain after a week. WE boarded the flight twice because of the temperature inside the plan.

First keep the airline as you promise. Reason for travelling from Orlando to Tampa is to go with Qatar Airline. We end up with American Airline. As expected the service was horrible.

Not sure how we end up with American Airlines instead of Qatar Airways. From Philadelphia to Qatar they boarded us then they asked us to unload. After 30 minutes later they board us again. The inside the plane it was burning hot and we were sweating like crazy. Crew members are absolute rude. The way they served the passengers were horrible. One of the crew members hit my knee with food cart and kept going. I was holding an ice pack for almost 2 hours. I am still with the pain.

I felt that when I was rerouted it should have been to business class.

It was worst flight ever of 26h. Poor service and seating. Flight from Abu Dhabi to Islamabad service and seating was worst ever. No tv extra.

i was not allowed to use lounge, although i had business class ticket, and nobody told me my ticket was not eligible to use lounge

It was OK as the seat which we paid for doesn’t have any window. We paid $120 for 3 seats but it’s for nothing. Crew could not help. None of the ports worked so all our phones went dry

I had a terrible experience checking in at the airport for my flight. I booked my ticket initially through Kayak while it was promoted as a ticket that offers a carry on and 2 suit cases. (I have a screen shot as a proof of it) I selected it to buy three tickets and paid online. Couple of minutes later airfare assist which is the OTA offering the ticket called me saying My card declined. So I used a different card that went through. I was surprised that they increased the price ticket by a $167. They said the ticket no longer exists and because my card declined I had to buy a new one. So I did. The day my family and I were traveling I could not check in and when I went to the airport I was shocked to be told my ticket had no bags allowed and must pay $200 per bag for three people 6 bags mean I have to pay $1200. I called the travel agency as I feel I was scammed the confirmation didn’t say anything about the bags and they never told me the new ticket doesn’t not include any bag so they changed it after I selected it on your app without informing me. Very sneaky. The travel agency said they will reimburse me only for one bag person. Which means I still paid $600 I still feel very disappointed to pay such an expense. I have always used Kayak to buy my flight tickets and telling everyone how good your rates and app are however after this I feel I was mislead and paid more for something I should not have to. You allowing such an agency on your platform will surely hurt your reputation and level of integrity. I have all the proofs from the screen shot to the confirmation email from them, the or email offering to reimburse o e bag per person and the $1200 bag fees receipts that I paid on the desk. I must be refund the full amount and I look forward to your response.

The food could be better. Toilets were smelly all along

second leg was more comfortable. Customer service in Abu Dhabi is okay.

Extremely bad food, they never gave our bags in time, the online check-in did not let us check in because we had Indian OCI not sure why we were given the option to check in then, because we couldn’t check in online we had to go in person and we were not able to change our seats and sit with our family

Likes: on time departure, new plane Didn’t like:very poor quality food, very limited entertainment.no amenity kit etc.

This flight was a dreamliner so I think the space was ok for the legs, but the option for food was again limited and the crew was same.

Boarding was efficient, had to check in cabin luggage. Seats were narrow, food was more in quantity, received cabin luggage on the luggage belt which was fine.

Food is too little (in volume) and too spicy.. There are no snacks in the back of the plane in between meals.

Very friendly, service oriented and responsive crew. Very pleased with th service!

The entertainment is pretty boring. There are no new movies or TV shows from February. The food is just ok on the Atlanta to Frankfurt leg, but better on the Fra to Bengaluru leg.

Flight LH760 from Germany to New Delhi, the food was excellent, the crew was fantastic, the seats in economy are usually tight these days, so I can say that the seats were Ok, the entertainment was OK because for some reason the sound is not very clear, overall I enjoyed this flight, compared to the flight (UA 962) I took with united from San Francisco to Frankfurt in this trip, that flight was horrible. Thank you Lufthansa.

The crew was exceptionally polite and caring. The plane was comfortable. Great experience. Will fly more on Air India because of this experience.

We had a 1 1/2 hour delay before we left Denver. When we arrive to Frankfort, they didn’t announce that people with connecting flights to exit the plane first. My next flight was already boarding when we we taxiing in to the gate. I waited another 10 minutes to get off the plane. I had to run to catch my next flight. I mean run! I made it with one minute to spare, but my luggage did not. My luggage came two hours later on a different flight.

Both flights were delayed and we missed our connection. Our second flight was delayed 3 times. I have always had great service and never any problems with my flights on Lufthansa. My last two flights were, unfortunately, awful. I fly quite often to Germany and have had better luck with United than Lufthansa.

Excellent staff and flight experience. Would rather that I had upgraded to Premium Economy for extra space, but I will know to do it next time.

It was my first experience in business class. It was everything I expected and more. Service was impeccable, food was delicious and I felt rested once I arrived to London

Sorry, I’m not a fan of United. The seats are just too cramped and uncomfortable if you are traveling very far.

Everything you need to know for your flight from Denver to Kolkata

Information on your arrival and departure airports

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