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$971+ Cheap flights from Denver (DEN) to Kolkata (CCU)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/4. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — CCU
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
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 September 17, 2025.

Round-trip from

$971
(oojo)

Popular in

December

Cheapest in

April

Average price

$1,165
From Denver Intl to Kolkata Netaji S. Chandra
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($228 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($58 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 17, 2025.

This oojo deal was found by Cheapflights users on 9/14. 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.
Sat 10/411:25 amDEN - CCU
2 stops41h 55mAir India
Tue 10/288:55 pmCCU - DEN
2 stops49h 40mAir India
Deal found 9/14$971
This Trip.com deal was found by Cheapflights users on 9/17. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/274:14 pmDEN - CCU
2 stops46h 36mMultiple Airlines
Sun 10/193:50 amCCU - DEN
2 stops56h 48mMultiple Airlines
Deal found 9/17$976
This oojo deal was found by Cheapflights users on 9/17. 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.
Tue 9/2311:25 amDEN - CCU
2 stops46h 40mAir India
Wed 10/298:55 pmCCU - DEN
2 stops49h 40mAir India
Deal found 9/17$980
This Trip.com deal was found by Cheapflights users on 9/17. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/44:14 pmDEN - CCU
2 stops47h 16mMultiple Airlines
Sun 10/268:55 pmCCU - DEN
2 stops29h 59mMultiple Airlines
Deal found 9/17$982
This Etihad Airways deal was found by Cheapflights users on 9/15. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/237:16 amDEN - CCU
2 stops25h 49mMultiple Airlines
Wed 10/298:55 pmCCU - DEN
2 stops35h 02mMultiple Airlines
Deal found 9/15$1,001
This oojo deal was found by Cheapflights users on 9/15. 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 10/311:59 pmDEN - CCU
2 stops34h 06mAir India
Sat 10/2512:55 amCCU - DEN
2 stops69h 40mAir India
Deal found 9/15$1,019
This oojo deal was found by Cheapflights users on 9/14. 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.
Sat 10/411:25 amDEN - CCU
2 stops44h 20mAir India
Sun 10/268:30 pmCCU - DEN
2 stops50h 05mAir India
Deal found 9/14$1,023
This Etihad Airways deal was found by Cheapflights users on 9/15. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/237:16 amDEN - CCU
2 stops32h 14mMultiple Airlines
Mon 11/38:55 pmCCU - DEN
2 stops31h 26mMultiple Airlines
Deal found 9/15$1,051
This FlightHub deal was found by Cheapflights users on 9/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/3011:29 amDEN - CCU
2 stops27h 21mQatar Airways
Sun 11/23:25 amCCU - DEN
2 stops30h 53mQatar Airways
Deal found 9/15$1,056

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 September 17, 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

Sat 10/4

11:25 am-4:50 pm

2 stops41h 55m

Kolkata Netaji S. Chandra

Tue 10/28

8:55 pm-11:05 am

2 stops49h 40m

$971

DenverKolkata

DEN - CCU

DENCCU

Denver Intl

Sat 9/27

4:14 pm-8:35 pm

2 stops40h 51m

Kolkata Netaji S. Chandra

Mon 10/20

4:00 am-1:08 am

2 stops56h 38m

$977

DenverKolkata

DEN - CCU

DENCCU

Denver Intl

Tue 9/23

11:25 am-9:35 pm

2 stops46h 40m

Kolkata Netaji S. Chandra

Wed 10/29

8:55 pm-11:05 am

2 stops49h 40m

$980

DenverKolkata

DEN - CCU

DENCCU

Denver Intl

Tue 9/23

7:16 am-8:35 pm

2 stops25h 49m

Kolkata Netaji S. Chandra

Wed 10/29

8:55 pm-8:27 pm

2 stops35h 02m

$1,001

DenverKolkata

DEN - CCU

DENCCU

Denver Intl

Fri 10/3

11:59 pm-9:35 pm

2 stops34h 06m

Kolkata Netaji S. Chandra

Sat 10/25

12:55 am-11:05 am

2 stops69h 40m

$1,019

DenverKolkata

DEN - CCU

DENCCU

Denver Intl

Tue 9/23

7:16 am-3:00 am

2 stops32h 14m

Kolkata Netaji S. Chandra

Mon 11/3

8:55 pm-3:51 pm

2 stops31h 26m

$1,051

DenverKolkata

DEN - CCU

DENCCU

Denver Intl

Mon 9/29

11:59 pm-8:35 pm

2 stops33h 06m

Kolkata Netaji S. Chandra

Mon 11/3

8:55 pm-3:51 pm

2 stops31h 26m

$1,051

DenverKolkata

DEN - CCU

DENCCU

Denver Intl

Tue 9/30

11:29 am-2:20 am

2 stops27h 21m

Kolkata Netaji S. Chandra

Sun 11/2

3:25 am-9:48 pm

2 stops30h 53m

$1,056

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

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 $977). 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 September 17, 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.

How much does it cost to fly round-trip from Denver to Kolkata?

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 September 17, 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
3,622 reviews

Boarding

7.5

Overall

7.4

Comfort

7.4

Crew

7.9

Entertainment

7.4

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
3,622 reviews
Qatar Airways
7.4
Good
3,622 reviews

Boarding

7.5

Overall

7.4

Comfort

7.4

Crew

7.9

Entertainment

7.4

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
1,251 reviews
Qatar Airways
7.4
Good
3,622 reviews

Boarding

7.5

Overall

7.4

Comfort

7.4

Crew

7.9

Entertainment

7.4

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
7,409 reviews
Qatar Airways
7.4
Good
3,622 reviews

Boarding

7.5

Overall

7.4

Comfort

7.4

Crew

7.9

Entertainment

7.4

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.

  • How long is the flight from Denver to Kolkata?

    Airlines like Air India fly from Denver to Kolkata in about 41h 55m. The time it takes to get you to your destination can typically vary by up to . The distance from Denver to Kolkata is about 8030 mi.

  • What are the cheapest airlines flying from Denver to Kolkata round-trip?

    Etihad Airways, at $1,019, 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 26% 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 $977). 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Etihad AirwaysCheapest$1,019Average$1,298FlexibilityNo cancel feeOn-time75%
Qatar AirwaysCheapest$1,133Average$1,404FlexibilityNo cancel feeOn-time68%
LufthansaCheapest$1,322Average$1,452FlexibilityNo cancel feeOn-time76%

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