$1,150+ 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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — CCU
Aug 30 — Sep 61
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Denver to Kolkata with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Denver to Kolkata
Cheapest
Best
Last-minute
One-way
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 July 31, 2026.
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 July 31, 2026.
This FlightHub deal was found by Cheapflights users on 7/28. 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.
Fri 9/42:04 pm
DEN
- CCU
2 stops25h 21m
Multiple Airlines
Fri 9/183:50 am
CCU
- DEN
2 stops45h 57m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$1,150
This Indian Eagle deal was found by Cheapflights users on 7/28. 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 Indian Eagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/512:07 pm
DEN
- CCU
2 stops26h 53m
Qatar Airways
Fri 10/234:00 am
CCU
- DEN
2 stops28h 16m
Qatar Airways
Deal found 7/28![Qatar Airways logo]()
$1,151
This Etihad Airways deal was found by Cheapflights users on 7/29. 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.
Fri 8/286:56 am
DEN
- CCU
2 stops32h 29m
Multiple Airlines
Fri 9/49:30 pm
CCU
- DEN
2 stops37h 59m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$1,171
This American Airlines deal was found by Cheapflights users on 7/28. 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.
Mon 10/52:28 pm
DEN
- CCU
2 stops24h 32m
Multiple Airlines
Fri 10/234:00 am
CCU
- DEN
2 stops28h 16m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$1,210
This Qatar Airways deal was found by Cheapflights users on 7/28. 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 9/2412:23 pm
DEN
- CCU
2 stops26h 37m
Qatar Airways
Mon 9/284:00 am
CCU
- DEN
2 stops31h 47m
Qatar Airways
Deal found 7/28![Qatar Airways logo]()
$1,218
This Indian Eagle deal was found by Cheapflights users on 7/28. 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 Indian Eagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/412:50 pm
DEN
- CCU
2 stops26h 10m
Qatar Airways
Sat 9/194:00 am
CCU
- DEN
2 stops28h 05m
Qatar Airways
Deal found 7/28![Qatar Airways logo]()
$1,233
This American Airlines deal was found by Cheapflights users on 7/26. 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.
Thu 10/11:05 pm
DEN
- CCU
2 stops25h 55m
Multiple Airlines
Sat 5/14:00 am
CCU
- DEN
2 stops27h 25m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$1,263
This oojo deal was found by Cheapflights users on 7/29. 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 8/1510:43 am
DEN
- CCU
2 stops52h 17m
Qatar Airways
Mon 8/314:00 am
CCU
- DEN
2 stops27h 08m
Qatar Airways
Deal found 7/29![Qatar Airways logo]()
$1,292
This Indian Eagle deal was found by Cheapflights users on 7/30. 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 Indian Eagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/92:28 pm
DEN
- CCU
2 stops24h 32m
Qatar Airways
Sun 10/254:00 am
CCU
- DEN
2 stops28h 16m
Qatar Airways
Deal found 7/30![Qatar Airways logo]()
$1,304
This American Airlines deal was found by Cheapflights users on 7/29. 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 8/710:43 am
DEN
- CCU
2 stops28h 17m
Multiple Airlines
Thu 8/204:00 am
CCU
- DEN
2 stops29h 46m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$1,343
Best flights from Denver to KolkataDiscover 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 July 31, 2026.
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 July 31, 2026.
This Indian Eagle deal was found by Cheapflights users on 7/28. 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 Indian Eagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/512:07 pm
DEN
- CCU
2 stops26h 53m
Qatar Airways
Fri 10/234:00 am
CCU
- DEN
2 stops28h 16m
Qatar Airways
Deal found 7/28![Qatar Airways logo]()
$1,151
This Etihad Airways deal was found by Cheapflights users on 7/29. 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.
Fri 8/286:56 am
DEN
- CCU
2 stops32h 29m
Multiple Airlines
Fri 9/49:30 pm
CCU
- DEN
2 stops37h 59m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$1,171
This Indian Eagle deal was found by Cheapflights users on 7/27. 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 Indian Eagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/25:50 pm
DEN
- CCU
3 stops64h 05m
Singapore Airlines
Sat 1/1611:40 pm
CCU
- DEN
2 stops54h 40m
Singapore Airlines
Deal found 7/27![Singapore Airlines logo]()
$1,921
This Qatar Airways deal was found by Cheapflights users on 7/29. 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 9/2412:23 pm
DEN
- CCU
2 stops26h 37m
Qatar Airways
Mon 9/284:00 am
CCU
- DEN
2 stops31h 47m
Qatar Airways
Deal found 7/29![Qatar Airways logo]()
$1,218
This Priceline deal was found by Cheapflights users on 7/28. 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.
Mon 10/510:20 am
DEN
- CCU
3 stops35h 00m
Multiple Airlines
Thu 10/223:50 am
CCU
- DEN
2 stops45h 58m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$1,576
This Mytrip deal was found by Cheapflights users on 7/26. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/19:40 am
DEN
- CCU
3 stops29h 45m
Multiple Airlines
Sat 5/19:30 pm
CCU
- DEN
3 stops33h 00m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$1,767
Last-minute flights from Denver to KolkataDiscover last-minute flight deals from Denver to Kolkata. Data last updated July 31, 2026 and is based on user searches.
Discover last-minute flight deals from Denver to Kolkata. Data last updated July 31, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 7/29. 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 8/710:43 am
DEN
- CCU
2 stops28h 17m
Multiple Airlines
Thu 8/204:00 am
CCU
- DEN
2 stops29h 46m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$1,343
This Priceline deal was found by Cheapflights users on 7/29. 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.
Fri 8/78:25 pm
DEN
- CCU
3 stops44h 55m
SWISS
Thu 8/209:00 pm
CCU
- DEN
3 stops31h 04m
SWISS
Deal found 7/29![SWISS logo]()
$2,265
One-way flights from Denver to KolkataSearch for one-way flight options from Denver to Kolkata. Find affordable one-way fares based on user searches. Data last updated July 31, 2026.
Search for one-way flight options from Denver to Kolkata. Find affordable one-way fares based on user searches. Data last updated July 31, 2026.
This AranGrant deal was found by Cheapflights users on 7/28. 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.
Tue 10/611:35 am
DEN
- CCU
2 stops46h 15m
Air India
Deal found 7/28![Air India logo]()
$1,595
This Booking.com deal was found by Cheapflights users on 7/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/611:15 am
DEN
- CCU
3 stops34h 05m
Lufthansa
Deal found 7/28![Lufthansa logo]()
$1,704
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/306:31 am
DEN
- CCU
3 stops53h 14m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$2,519
This KAYAK deal was found by Cheapflights users on 7/26. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/305:01 pm
DEN
- CCU
2 stops32h 59m
British Airways
Deal found 7/26![British Airways logo]()
$4,240
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 July 31, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,150 (FlightHub) |
Popular in | December |
Cheapest in | October |
Average price | $1,293 |
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 July 31, 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
Cheapest round-trip
Quickest round-trip
DenverKolkata
DEN - CCU
DENCCU
Denver Intl
Mon 10/5
12:07 pm-2:30 am
2 stops26h 53m
Kolkata Netaji S. Chandra
Fri 10/23
4:00 am-8:46 pm
2 stops28h 16m
$1,151
DenverKolkata
DEN - CCU
DENCCU
Denver Intl
Fri 8/28
6:56 am-2:55 am
2 stops32h 29m
Kolkata Netaji S. Chandra
Fri 9/4
9:30 pm-11:59 pm
2 stops37h 59m
$1,171
DenverKolkata
DEN - CCU
DENCCU
Denver Intl
Thu 9/24
12:23 pm-2:30 am
2 stops26h 37m
Kolkata Netaji S. Chandra
Mon 9/28
4:00 am-12:17 am
2 stops31h 47m
$1,218
DenverKolkata
DEN - CCU
DENCCU
Denver Intl
Mon 10/5
10:20 am-8:50 am
3 stops35h 00m
Kolkata Netaji S. Chandra
Thu 10/22
3:50 am-2:18 pm
2 stops45h 58m
$1,576
DenverKolkata
DEN - CCU
DENCCU
Denver Intl
Thu 10/1
9:40 am-2:55 am
3 stops29h 45m
Kolkata Netaji S. Chandra
Sat 5/1
9:30 pm-7:00 pm
3 stops33h 00m
$1,767
DenverKolkata
DEN - CCU
DENCCU
Denver Intl
Wed 12/2
5:50 pm-10:25 pm
3 stops64h 05m
Kolkata Netaji S. Chandra
Sat 1/16
11:40 pm-5:50 pm
2 stops54h 40m
$1,921
Cheapest one-way
DenverKolkata
DEN - CCU
DENCCU
Denver Intl
Tue 10/6
11:35 am-9:20 pm
2 stops46h 15m
$1,595
DenverKolkata
DEN - CCU
DENCCU
Denver Intl
Tue 10/6
11:15 am-8:50 am
3 stops34h 05m
$1,704
DenverKolkata
DEN - CCU
DENCCU
Denver Intl
Wed 12/30
6:31 am-12:15 am
3 stops53h 14m
$2,519
Quickest one-way
DenverKolkata
DEN - CCU
DENCCU
Denver Intl
Wed 12/30
5:01 pm-2:30 pm
2 stops32h 59m
$4,240
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 July.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
DEN-CCU
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
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 July 31, 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.
Entertainment
7.3
Food
7.3
Crew
7.9
Boarding
7.5
Comfort
7.3
Overall
7.4
Reviews
1 / 20
4.0
OkayJanak,Oct 2023
DOH - AMD
Entertainment
7.3
Food
7.3
Crew
7.9
Boarding
7.5
Comfort
7.3
Overall
7.4
Reviews
1 / 20
4.0
OkayJanak,Oct 2023
DOH - AMD
Entertainment
7.3
Food
7.3
Crew
7.9
Boarding
7.5
Comfort
7.3
Overall
7.4
Reviews
1 / 20
4.0
OkayJanak,Oct 2023
DOH - AMD
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.
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
Flights by cabin class
Kolkata flight routes
Other flight options
Other flights from Denver
Popular flights
Complete your trip
Complete your trip to Kolkata by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Denver to Kolkata by cabin class
Find flights from Denver to Kolkata, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Kolkata
Explore flights to Kolkata departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on July 31, 2026.
Denver and Kolkata flights
Browse other Denver and Kolkata flight options. Last updated on July 31, 2026.
Other flights from Denver
Browse through other flights departing from Denver. Flights are based on user searches made on Cheapflights and were last updated on July 31, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 July 31, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$1,138 | Average$1,316 | FlexibilityNo cancel fee | On-time68% | |
| Cheapest$1,276 | Average$1,382 | FlexibilityNo cancel fee | On-time76% |