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$1,020+ 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 9/17. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — CCU
Jul 4 — Jul 111
Sat 7/4
Sat 7/11
1 adult, Economy
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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 June 4, 2026.

This oojo deal was found by Cheapflights users on 6/2. 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.
Thu 9/173:15 pm
DEN
-
CCU
2 stops48h 10m
Etihad Airways
Mon 9/219:30 pm
CCU
-
DEN
2 stops28h 18m
Etihad Airways
Deal found 6/2$1,020
This Qatar Airways deal was found by Cheapflights users on 6/1. 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.
Thu 9/1712:25 pm
DEN
-
CCU
2 stops26h 35m
Qatar Airways
Mon 9/214:00 am
CCU
-
DEN
2 stops31h 47m
Qatar Airways
Deal found 6/1$1,246
This oojo deal was found by Cheapflights users on 5/31. 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.
Wed 7/1511:59 pm
DEN
-
CCU
2 stops39h 01m
Qatar Airways
Wed 7/224:00 am
CCU
-
DEN
2 stops30h 29m
Qatar Airways
Deal found 5/31$1,274
This Qatar Airways deal was found by Cheapflights users on 5/30. 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.
Fri 9/181:17 pm
DEN
-
CCU
2 stops25h 43m
Qatar Airways
Tue 9/224:00 am
CCU
-
DEN
2 stops28h 05m
Qatar Airways
Deal found 5/30$1,286
This American Airlines deal was found by Cheapflights users on 6/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1711:44 am
DEN
-
CCU
2 stops27h 16m
Multiple Airlines
Fri 8/74:00 am
CCU
-
DEN
2 stops27h 08m
Multiple Airlines
Deal found 6/1$1,343
This Air France deal was found by Cheapflights users on 6/4. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/75:40 pm
DEN
-
CCU
2 stops48h 20m
Air France
Sat 6/204:15 pm
CCU
-
DEN
2 stops34h 55m
Air France
Deal found 6/4$1,551
This Ovago deal was found by Cheapflights users on 6/2. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/2211:59 pm
DEN
-
CCU
2 stops33h 01m
Etihad Airways
Mon 7/133:50 am
CCU
-
DEN
2 stops30h 39m
Etihad Airways
Deal found 6/2$1,562
This Priceline deal was found by Cheapflights users on 6/2. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/179:35 am
DEN
-
CCU
3 stops31h 45m
Multiple Airlines
Mon 9/219:30 pm
CCU
-
DEN
2 stops28h 18m
Multiple Airlines
Deal found 6/2$1,576
This KLM deal was found by Cheapflights users on 5/31. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/75:40 pm
DEN
-
CCU
2 stops50h 25m
Multiple Airlines
Sat 6/209:00 pm
CCU
-
DEN
2 stops30h 10m
Multiple Airlines
Deal found 5/31$1,579
This oojo deal was found by Cheapflights users on 6/3. 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.
Sun 6/148:59 am
DEN
-
CCU
2 stops54h 01m
Qatar Airways
Tue 6/304:00 am
CCU
-
DEN
2 stops31h 47m
Qatar Airways
Deal found 6/3$1,690

Find 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 June 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,020
(oojo)

Popular in

December

Cheapest in

October

Average price

$1,754
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. 16% potential increase in price ($304 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($88 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

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 June 4, 2026.
Use the filters below to find and compare flights from Denver to Kolkata that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DenverKolkata

DEN - CCU

DENCCU

Denver Intl

Thu 9/17

3:15 pm-2:55 am

2 stops48h 10m

Kolkata Netaji S. Chandra

Mon 9/21

9:30 pm-2:18 pm

2 stops28h 18m

$1,020

DenverKolkata

DEN - CCU

DENCCU

Denver Intl

Thu 9/17

12:25 pm-2:30 am

2 stops26h 35m

Kolkata Netaji S. Chandra

Mon 9/21

4:00 am-12:17 am

2 stops31h 47m

$1,246

DenverKolkata

DEN - CCU

DENCCU

Denver Intl

Wed 7/15

11:59 pm-2:30 am

2 stops39h 01m

Kolkata Netaji S. Chandra

Wed 7/22

4:00 am-10:59 pm

2 stops30h 29m

$1,274
Quickest round-trip

DenverKolkata

DEN - CCU

DENCCU

Denver Intl

Fri 9/18

1:17 pm-2:30 am

2 stops25h 43m

Kolkata Netaji S. Chandra

Tue 9/22

4:00 am-8:35 pm

2 stops28h 05m

$1,286

DenverKolkata

DEN - CCU

DENCCU

Denver Intl

Fri 7/17

11:44 am-2:30 am

2 stops27h 16m

Kolkata Netaji S. Chandra

Fri 8/7

4:00 am-7:38 pm

2 stops27h 08m

$1,343

DenverKolkata

DEN - CCU

DENCCU

Denver Intl

Mon 6/22

11:59 pm-8:30 pm

2 stops33h 01m

Kolkata Netaji S. Chandra

Mon 7/13

3:50 am-10:59 pm

2 stops30h 39m

$1,562

DenverKolkata

DEN - CCU

DENCCU

Denver Intl

Thu 9/17

9:35 am-4:50 am

3 stops31h 45m

Kolkata Netaji S. Chandra

Mon 9/21

9:30 pm-2:18 pm

2 stops28h 18m

$1,576

DenverKolkata

DEN - CCU

DENCCU

Denver Intl

Sun 6/14

8:59 am-2:30 am

2 stops54h 01m

Kolkata Netaji S. Chandra

Tue 6/30

4:00 am-12:17 am

2 stops31h 47m

$1,690

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/2

Sorted by cheapest first

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 June.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Denver-Kolkata flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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

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 June 4, 2026.
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
3,730 reviews

Entertainment

7.3

Crew

7.9

Overall

7.4

Boarding

7.5

Comfort

7.3

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
3,730 reviews
Qatar Airways
7.4
Good
3,730 reviews

Entertainment

7.3

Crew

7.9

Overall

7.4

Boarding

7.5

Comfort

7.3

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
8,036 reviews
Qatar Airways
7.4
Good
3,730 reviews

Entertainment

7.3

Crew

7.9

Overall

7.4

Boarding

7.5

Comfort

7.3

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 Etihad Airways and Qatar Airways fly from Denver to Kolkata in about 26h 35m. The time it takes to get you to your destination can typically vary by up to 21h 35m. 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 24% 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

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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 2 airlines flying from Denver to Kolkata

Discover the top 2 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 June 4, 2026.
AirlineCheapestAverageFlexibilityOn-time
Qatar AirwaysCheapest$1,133Average$1,356FlexibilityNo cancel feeOn-time68%
LufthansaCheapest$1,276Average$1,382FlexibilityNo cancel feeOn-time76%

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