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$614+ Cheap flights from Denver (DEN) 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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — CCU
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap flight deals from Denver to Kolkata

Discover tips and strategies to find the most affordable flight options for your journey from Denver (DEN) 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 August 14, 2025.

Round-trip from

$1,293
(Qatar Airways)

One-way from

$614
(oojo)

Popular in

December

Cheapest in

April

Average price

$1,413
From Denver Intl to Kolkata Netaji S. Chandra
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One-way flight from Denver Intl to Kolkata Netaji S. Chandra
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Highest demand for flights based on searches. 12% potential increase in price ($190 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($62 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find flight deals from Denver to Kolkata

Cheapest flights from Denver to Kolkata
Explore the most affordable flight options available from Denver to Kolkata. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This Qatar Airways deal was found by Cheapflights users on 8/13. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/711:25 amDEN - CCU
2 stops51h 25mQatar Airways
Fri 10/103:50 amCCU - DEN
2 stops54h 44mQatar Airways
Deal found 8/13$1,293
This Singapore Airlines deal was found by Cheapflights users on 8/13. 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 Singapore Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/75:55 pmDEN - CCU
2 stops40h 50mSingapore Airlines
Sat 10/1111:30 pmCCU - DEN
2 stops55h 40mSingapore Airlines
Deal found 8/13$1,940
This oojo deal was found by Cheapflights users on 8/14. 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 9/1211:25 amDEN - CCU
2 stops41h 55mAir India
Tue 9/2312:40 pmCCU - DEN
2 stops57h 30mAir India
Deal found 8/14$5,387
This oojo deal was found by Cheapflights users on 8/13. 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 9/1211:25 amDEN - CCU
2 stops51h 25mQatar Airways
Mon 9/223:50 amCCU - DEN
2 stops29h 42mQatar Airways
Deal found 8/13$7,304
This AranGrant deal was found by Cheapflights users on 8/14. 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 AranGrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/122:17 pmDEN - CCU
3 stops37h 43mBritish Airways
Tue 9/236:00 pmCCU - DEN
3 stops60h 03mBritish Airways
Deal found 8/14$8,466

Cheapflights Fare Finder

 
Customize your flight search to find flights from Denver 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 August 14, 2025.
Use the filters below to find and compare flights from Denver to Kolkata that are best for you.

Fly from

Denver

Fly to

Kolkata

Route

Depart

Return

Price

DenverKolkata

DEN - CCU

DENCCU

Denver Intl

Tue 10/7

11:25 am-2:20 am

2 stops51h 25m

Kolkata Netaji S. Chandra

Fri 10/10

3:50 am-11:04 pm

2 stops54h 44m

$1,293

DenverKolkata

DEN - CCU

DENCCU

Denver Intl

Tue 10/7

5:55 pm-10:15 pm

2 stops40h 50m

Kolkata Netaji S. Chandra

Sat 10/11

11:30 pm-7:40 pm

2 stops55h 40m

$1,940

DenverKolkata

DEN - CCU

DENCCU

Denver Intl

Fri 9/12

11:25 am-4:50 pm

2 stops41h 55m

Kolkata Netaji S. Chandra

Tue 9/23

12:40 pm-10:40 am

2 stops57h 30m

$5,387

DenverKolkata

DEN - CCU

DENCCU

Denver Intl

Fri 9/12

11:25 am-2:20 am

2 stops51h 25m

Kolkata Netaji S. Chandra

Mon 9/22

3:50 am-10:02 pm

2 stops29h 42m

$7,304

DenverKolkata

DEN - CCU

DENCCU

Denver Intl

Fri 9/12

2:17 pm-3:30 pm

3 stops37h 43m

Kolkata Netaji S. Chandra

Tue 9/23

6:00 pm-6:33 pm

3 stops60h 03m

$8,466

DenverKolkata

DEN - CCU

DENCCU

Denver Intl

Tue 9/23

11:25 am-12:50 am

2 stops49h 55m

$614

DenverKolkata

DEN - CCU

DENCCU

Denver Intl

Tue 9/23

8:55 pm-8:15 pm

3 stops35h 50m

$706

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Best time to book a flight from Denver to Kolkata

Have a flexible travel schedule? Discover the best time to fly to Kolkata from Denver 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 Denver to Kolkata

What is the cheapest month to book a flight from Denver to Kolkata?

Currently, September is the cheapest month in which you can book a flight from Denver to Kolkata (average of $971). Flying from Denver 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 DEN to CCU?

Find hourly flight availability from Denver 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 August 14, 2025.

It’s typically best to fly out from Denver to Kolkata in the afternoon. Doing so could potentially save you 15% on the flight price compared to flying in the morning, which is usually more expensive.

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 August 14, 2025.
Peruse reviews from past customers who have flown with Qatar Airways, Etihad Airways, and Lufthansa from Denver to Kolkata to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Qatar Airways
7.4
Good
3,608 reviews

Crew

7.9

Comfort

7.4

Overall

7.4

Entertainment

7.4

Boarding

7.5

Food

7.3

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable
Qatar Airways
7.4
Good
3,608 reviews
Qatar Airways
7.4
Good
3,608 reviews

Crew

7.9

Comfort

7.4

Overall

7.4

Entertainment

7.4

Boarding

7.5

Food

7.3

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable
Etihad Airways
7.4
Good
1,232 reviews
Qatar Airways
7.4
Good
3,608 reviews

Crew

7.9

Comfort

7.4

Overall

7.4

Entertainment

7.4

Boarding

7.5

Food

7.3

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable
Lufthansa
6.8
Okay
7,317 reviews
Qatar Airways
7.4
Good
3,608 reviews

Crew

7.9

Comfort

7.4

Overall

7.4

Entertainment

7.4

Boarding

7.5

Food

7.3

Reviews

1 / 20
6.0
Good

Chris,Jul 2025

DFW - DOH

Too crammed for the amount you have to pay. That was very uncomfortable

Related info for your journey

Find useful and relevant information for your journey from Denver 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 Denver to Kolkata round-trip?

    Etihad Airways, at $873, was found to be the cheapest airline from Denver to Kolkata.Alternate airlines to your destination round-trip include Qatar Airways and Lufthansa. Users have found that Etihad Airways is 36% cheaper than the other options available to this destination.

  • Can I find deals for flights from Denver to Kolkata that include hotel bookings?

    Yes. In addition to deals on Denver to Kolkata flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Denver to Kolkata?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Denver to Kolkata.

  • Can I find deals for business class flights from Denver to Kolkata?

    Yes. Cheapflights offers flight deals from Denver 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 Denver to Kolkata?

    Currently, September is the cheapest month in which you can book a flight from Denver to Kolkata (average of $971). Flying from Denver 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

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Complete your trip

Complete your trip to Kolkata by adding a car rental and/or hotel reservation to your travel itinerary.
Kolkata car rentals
Kolkata Netaji S. Chandra Airport car rentals

Top 3 airlines flying from Denver to Kolkata

Discover the top 3 airlines that operate flights from Denver 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Etihad AirwaysCheapest$873Average$1,298FlexibilityNo cancel feeOn-time75%
Qatar AirwaysCheapest$1,133Average$1,408FlexibilityNo cancel feeOn-time68%
LufthansaCheapest$1,322Average$1,452FlexibilityNo cancel feeOn-time76%

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