How long is the flight from Denver to Kolkata?

Airlines like Air India and Qatar Airways fly from Denver to Kolkata in about 30h 05m. The time it takes to get you to your destination can typically vary by up to 3h 36m. The distance from Denver to Kolkata is about 8030 mi. This flight may include one or multiple stops.

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

Qatar Airways, at $1,133, was found to be the cheapest airline from Denver to Kolkata. An alternate airline flying to your destination would be Lufthansa. Users have found that Qatar Airways is 18% cheaper than the other options available to this destination.

In terms of precipitation, rainfall in Kolkata ranges from 0.3 - 14.0 inches per month. August is typically the wettest month, when rainfall can reach 14.0 in. December is typically the driest time to visit Kolkata when rainfall is around 0.3 in.

If weather is an important factor for your trip to Kolkata, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 87.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 68.0 F).

Most accurate provider : When it comes to deals on Denver-Kolkata flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Denver-Kolkata flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Denver-Kolkata flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Denver-Kolkata flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Denver-Kolkata flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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.

$992+ Flights from Denver to Kolkata

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Cheap 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 December 11, 2025.

Mon 12/1512:18 pmDEN - CCU

2 stops49h 07mQatar Airways

Sun 12/283:25 amCCU - DEN

2 stops57h 04mQatar Airways

Deal found 12/10

$2,186

Mon 12/154:42 pmDEN - CCU

2 stops44h 43mMultiple Airlines

Mon 12/298:35 pmCCU - DEN

3 stops56h 35mMultiple Airlines

Deal found 12/10

$4,191

Best flights from Denver to Kolkata
Discover carefully curated flight deals from Denver to Kolkata that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 11, 2025.

Tue 2/2411:59 pmDEN - CCU

2 stops33h 41mAir India

Wed 4/11:30 pmCCU - DEN

2 stops45h 02mAir India

Deal found 12/10

$992

Tue 3/311:59 pmDEN - CCU

2 stops28h 21mMultiple Airlines

Thu 4/1610:00 pmCCU - DEN

2 stops35h 08mMultiple Airlines

Deal found 12/10

$1,022

Sun 2/17:20 amDEN - CCU

2 stops30h 05mQatar Airways

Fri 2/133:25 amCCU - DEN

2 stops49h 05mQatar Airways

Deal found 12/10

$1,189

Tue 3/311:59 pmDEN - CCU

2 stops28h 21mAir India

Thu 4/1611:00 pmCCU - DEN

2 stops58h 08mAir India

Deal found 12/10

$992

Sat 1/176:00 amDEN - CCU

2 stops31h 25mQatar Airways

Sat 1/313:25 amCCU - DEN

2 stops54h 16mQatar Airways

Deal found 12/8

$1,227

Sat 1/2410:45 amDEN - CCU

2 stops26h 40mQatar Airways

Tue 1/273:25 amCCU - DEN

2 stops27h 18mQatar Airways

Deal found 12/8

$1,256

Sat 5/2311:59 pmDEN - CCU

2 stops40h 46mAir India

Sat 9/58:35 pmCCU - DEN

2 stops37h 56mAir India

Deal found 12/11

$1,338

Last-minute flights from Denver to Kolkata
Discover last-minute flight deals from Denver to Kolkata. Data last updated December 11, 2025 and is based on user searches.

Mon 12/1512:18 pmDEN - CCU

2 stops49h 07mQatar Airways

Sun 12/283:25 amCCU - DEN

2 stops57h 04mQatar Airways

Deal found 12/10

$2,186

Mon 12/154:42 pmDEN - CCU

2 stops44h 43mMultiple Airlines

Mon 12/298:35 pmCCU - DEN

3 stops56h 35mMultiple Airlines

Deal found 12/10

$4,191

Thu 1/812:34 pmDEN - CCU

2 stops24h 51mQatar Airways

Sun 1/183:25 amCCU - DEN

2 stops27h 58mQatar Airways

Deal found 12/8

$4,946

Thu 1/85:25 pmDEN - CCU

2 stops29h 15mMultiple Airlines

Mon 1/195:30 amCCU - DEN

3 stops43h 18mMultiple Airlines

Deal found 12/8

$6,944

Fri 1/911:35 amDEN - CCU

2 stops46h 05mAir India

Tue 1/207:00 amCCU - DEN

2 stops64h 12mAir India

Deal found 12/9

$4,891

Sat 1/106:00 amDEN - CCU

2 stops31h 25mQatar Airways

Tue 1/203:25 amCCU - DEN

2 stops29h 58mQatar Airways

Deal found 12/10

$4,992

Sat 1/176:00 amDEN - CCU

2 stops31h 25mQatar Airways

Sat 1/313:25 amCCU - DEN

2 stops54h 16mQatar Airways

Deal found 12/8

$1,227

Sat 1/171:10 pmDEN - CCU

2 stops44h 45mMultiple Airlines

Sun 2/111:40 pmCCU - DEN

3 stops36h 11mMultiple Airlines

Deal found 12/8

$1,760

Sat 1/2410:45 amDEN - CCU

2 stops26h 40mQatar Airways

Tue 1/273:25 amCCU - DEN

2 stops27h 18mQatar Airways

Deal found 12/8

$1,256

Sat 1/245:37 pmDEN - CCU

3 stops64h 18mSingapore Airlines

Wed 1/2811:40 pmCCU - DEN

2 stops53h 22mSingapore Airlines

Deal found 12/8

$2,249

Find flight deals from Denver to Kolkata

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$992 (oojo)
Popular in	June
Cheapest in	April
Average price	$1,694

Provider with most accurate pricing for Denver Intl-Kolkata Netaji S. Chandra flight deals.

Search Deals

Provider most trusted by Cheapflights users for Denver Intl-Kolkata Netaji S. Chandra flights.

Search Deals

From Denver Intl to Kolkata Netaji S. Chandra

Search Deals

Highest demand for flights based on searches. 7% potential increase in price ($109 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($43 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

DenverKolkata

DEN - CCU

DENCCU

Denver Intl

Tue 2/24

11:59 pm-10:10 pm

2 stops33h 41m

Kolkata Netaji S. Chandra

Wed 4/1

1:30 pm-11:02 pm

2 stops45h 02m

$992

DenverKolkata

DEN - CCU

DENCCU

Denver Intl

Tue 3/3

11:59 pm-4:50 pm

2 stops28h 21m

Kolkata Netaji S. Chandra

Thu 4/16

11:00 pm-9:38 pm

2 stops58h 08m

$992

DenverKolkata

DEN - CCU

DENCCU

Denver Intl

Tue 3/3

11:59 pm-4:50 pm

2 stops28h 21m

Kolkata Netaji S. Chandra

Thu 4/16

10:00 pm-9:38 pm

2 stops35h 08m

$1,022

DenverKolkata

DEN - CCU

DENCCU

Denver Intl

Sun 2/1

7:20 am-1:55 am

2 stops30h 05m

Kolkata Netaji S. Chandra

Fri 2/13

3:25 am-4:00 pm

2 stops49h 05m

$1,189

DenverKolkata

DEN - CCU

DENCCU

Denver Intl

Sat 1/17

6:00 am-1:55 am

2 stops31h 25m

Kolkata Netaji S. Chandra

Sat 1/31

3:25 am-9:11 pm

2 stops54h 16m

$1,227

DenverKolkata

DEN - CCU

DENCCU

Denver Intl

Sat 1/24

10:45 am-1:55 am

2 stops26h 40m

Kolkata Netaji S. Chandra

Tue 1/27

3:25 am-6:13 pm

2 stops27h 18m

$1,256

DenverKolkata

DEN - CCU

DENCCU

Denver Intl

Sat 5/23

11:59 pm-4:15 am

2 stops40h 46m

Kolkata Netaji S. Chandra

Sat 9/5

8:35 pm-11:01 pm

2 stops37h 56m

$1,338

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Compare providers for flights from Denver to Kolkata

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to Kolkata in December.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
Trip.com	Price Accuracy2 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Denver-Kolkata flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Denver-Kolkata flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Denver-Kolkata flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Denver-Kolkata flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Denver-Kolkata flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 time of day to fly from DEN to CCU?

It’s typically best to fly out from Denver to Kolkata in the morning. Doing so could potentially save you 33% on the flight price compared to flying in the afternoon, which is usually more expensive.

Reviews of airlines servicing Kolkata

Peruse reviews from past customers who have flown with Qatar 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

3,677 reviews

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

3,677 reviews

Qatar Airways

7.4

Good

3,677 reviews

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

7,626 reviews

Qatar Airways

7.4

Good

3,677 reviews

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

How long is the flight from Denver to Kolkata?
Airlines like Air India and Qatar Airways fly from Denver to Kolkata in about 30h 05m. The time it takes to get you to your destination can typically vary by up to 3h 36m. The distance from Denver to Kolkata is about 8030 mi. This flight may include one or multiple stops.
What are the cheapest airlines flying from Denver to Kolkata round-trip?
Qatar Airways, at $1,133, was found to be the cheapest airline from Denver to Kolkata. An alternate airline flying to your destination would be Lufthansa. Users have found that Qatar Airways is 18% 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Complete your trip

Kolkata car rentals

Kolkata Netaji S. Chandra Airport car rentals

Other flights to Kolkata

Top 2 airlines flying from Denver to Kolkata

Airline	Cheapest	Average	Flexibility	On-time
Qatar Airways	Cheapest$1,133	Average$1,293	FlexibilityNo cancel fee	On-time68%
Lufthansa	Cheapest$1,303	Average$1,441	FlexibilityNo cancel fee	On-time76%

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$992+ 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 2/24. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Denver to Kolkata with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Denver to Kolkata

Cheapest flights from Denver to KolkataExplore 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 December 11, 2025.

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 December 11, 2025.

Find flight deals from Denver to Kolkata

Most accurate provider

Most trusted provider

Round-trip from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Denver to Kolkata that are best for you.

Compare providers for flights from Denver to Kolkata

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Denver to Kolkata in December.

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.

Cheapflights Insights

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

What is the cheapest time of day to fly from DEN to CCU?

Reviews of airlines servicing Kolkata

Peruse reviews from past customers who have flown with Qatar 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.

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?

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

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

How can I find direct flights from Denver to Kolkata?

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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Complete your trip

Complete your trip to Kolkata by adding a car rental and/or hotel reservation to your travel itinerary.

Top 2 airlines flying from Denver to Kolkata

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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 December 11, 2025.