$670+ 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 8/15. Fares are subject to change and may not be available on all flights or dates of travel.
DEN — CCU
Jun 21 — Jun 281
Round-trip
1 adult, Economy
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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
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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 May 22, 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 May 22, 2026.
This oojo deal was found by Cheapflights users on 5/18. 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 8/1311:59 pm
DEN
- CCU
2 stops39h 01m
Qatar Airways
Thu 8/274:00 am
CCU
- DEN
2 stops30h 29m
Qatar Airways
Deal found 5/18![Qatar Airways logo]()
$1,239
This Qatar Airways deal was found by Cheapflights users on 5/17. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1711:40 am
DEN
- CCU
2 stops27h 20m
Qatar Airways
Mon 9/214:00 am
CCU
- DEN
2 stops29h 30m
Qatar Airways
Deal found 5/17![Qatar Airways logo]()
$1,246
This Air France deal was found by Cheapflights users on 5/19. 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.
Tue 6/25:40 pm
DEN
- CCU
2 stops48h 20m
Air France
Tue 7/144:15 pm
CCU
- DEN
2 stops34h 55m
Air France
Deal found 5/19![Air France logo]()
$1,518
This oojo deal was found by Cheapflights users on 5/18. 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.
Mon 12/79:00 am
DEN
- CCU
2 stops28h 25m
Qatar Airways
Thu 1/143:25 am
CCU
- DEN
2 stops27h 58m
Qatar Airways
Deal found 5/18![Qatar Airways logo]()
$1,565
This KLM deal was found by Cheapflights users on 5/19. 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.
Wed 6/35:40 pm
DEN
- CCU
2 stops51h 05m
Multiple Airlines
Tue 7/144:15 pm
CCU
- DEN
2 stops34h 55m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$1,588
This FlightHub deal was found by Cheapflights users on 5/18. 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.
Thu 8/135:45 pm
DEN
- CCU
2 stops41h 20m
Singapore Airlines
Thu 8/2711:30 pm
CCU
- DEN
3 stops33h 13m
Singapore Airlines
Deal found 5/18![Singapore Airlines logo]()
$1,599
This oojo deal was found by Cheapflights users on 5/18. 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 6/1411:59 pm
DEN
- CCU
2 stops57h 01m
Etihad Airways
Mon 6/293:50 am
CCU
- DEN
2 stops30h 22m
Etihad Airways
Deal found 5/18![Etihad Airways logo]()
$1,681
This Qatar Airways deal was found by Cheapflights users on 5/22. 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.
Mon 7/610:38 am
DEN
- CCU
2 stops28h 22m
Qatar Airways
Mon 7/134:00 am
CCU
- DEN
2 stops30h 24m
Qatar Airways
Deal found 5/22![Qatar Airways logo]()
$1,710
This FlightHub deal was found by Cheapflights users on 5/20. 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.
Sun 6/1411:59 pm
DEN
- CCU
2 stops39h 01m
Multiple Airlines
Tue 6/304:00 am
CCU
- DEN
2 stops27h 40m
Multiple Airlines
Deal found 5/20![Multiple Airlines logo]()
$1,767
This KAYAK deal was found by Cheapflights users on 5/18. 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.
Thu 5/284:05 pm
DEN
- CCU
2 stops25h 15m
Lufthansa
Thu 6/1810:00 pm
CCU
- DEN
2 stops29h 10m
Lufthansa
Deal found 5/18![Lufthansa logo]()
$1,791
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 May 22, 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 May 22, 2026.
This oojo deal was found by Cheapflights users on 5/18. 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 8/1311:59 pm
DEN
- CCU
2 stops39h 01m
Qatar Airways
Thu 8/274:00 am
CCU
- DEN
2 stops30h 29m
Qatar Airways
Deal found 5/18![Qatar Airways logo]()
$1,239
This Air France deal was found by Cheapflights users on 5/19. 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.
Tue 6/25:40 pm
DEN
- CCU
2 stops48h 20m
Air France
Tue 7/144:15 pm
CCU
- DEN
2 stops34h 55m
Air France
Deal found 5/19![Air France logo]()
$1,518
This KLM deal was found by Cheapflights users on 5/19. 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.
Wed 6/35:40 pm
DEN
- CCU
2 stops51h 05m
Multiple Airlines
Tue 7/144:15 pm
CCU
- DEN
2 stops34h 55m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$1,588
This KAYAK deal was found by Cheapflights users on 5/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/284:05 pm
DEN
- CCU
2 stops25h 15m
Lufthansa
Thu 6/1810:00 pm
CCU
- DEN
2 stops29h 10m
Lufthansa
Deal found 5/17![Lufthansa logo]()
$1,791
This KLM deal was found by Cheapflights users on 5/18. 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 stops51h 05m
KLM
Sat 6/2010:30 pm
CCU
- DEN
2 stops52h 40m
KLM
Deal found 5/18![KLM logo]()
$1,948
This oojo deal was found by Cheapflights users on 5/20. 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 5/284:05 pm
DEN
- CCU
2 stops25h 15m
Multiple Airlines
Thu 6/189:00 pm
CCU
- DEN
2 stops28h 50m
Multiple Airlines
Deal found 5/20![Multiple Airlines logo]()
$1,854
This Air France deal was found by Cheapflights users on 5/22. 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 stops47h 50m
Air France
Sat 6/204:15 pm
CCU
- DEN
2 stops34h 55m
Air France
Deal found 5/22![Air France logo]()
$2,036
This Qatar Airways deal was found by Cheapflights users on 5/20. 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.
Sun 6/79:00 am
DEN
- CCU
2 stops30h 00m
Multiple Airlines
Sat 6/204:00 am
CCU
- DEN
2 stops28h 41m
Multiple Airlines
Deal found 5/20![Multiple Airlines logo]()
$2,024
This Flightnetwork deal was found by Cheapflights users on 5/22. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/63:55 pm
DEN
- CCU
2 stops25h 25m
Multiple Airlines
Mon 7/1311:30 pm
CCU
- DEN
3 stops31h 40m
Multiple Airlines
Deal found 5/22![Multiple Airlines logo]()
$2,253
Last-minute flights from Denver to KolkataDiscover last-minute flight deals from Denver to Kolkata. Data last updated May 22, 2026 and is based on user searches.
Discover last-minute flight deals from Denver to Kolkata. Data last updated May 22, 2026 and is based on user searches.
This KAYAK deal was found by Cheapflights users on 5/18. 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.
Thu 5/284:05 pm
DEN
- CCU
2 stops25h 15m
Lufthansa
Thu 6/1810:00 pm
CCU
- DEN
2 stops29h 10m
Lufthansa
Deal found 5/18![Lufthansa logo]()
$1,791
This oojo deal was found by Cheapflights users on 5/20. 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 5/284:05 pm
DEN
- CCU
2 stops25h 15m
Multiple Airlines
Thu 6/189:00 pm
CCU
- DEN
2 stops28h 50m
Multiple Airlines
Deal found 5/20![Multiple Airlines logo]()
$1,854
This oojo deal was found by Cheapflights users on 5/19. 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 5/2811:41 pm
DEN
- CCU
2 stops39h 19m
Qatar Airways
Thu 6/184:00 am
CCU
- DEN
2 stops30h 29m
Qatar Airways
Deal found 5/19![Qatar Airways logo]()
$1,882
This KAYAK deal was found by Cheapflights users on 5/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2812:27 pm
DEN
- CCU
3 stops29h 03m
British Airways
Thu 6/186:25 am
CCU
- DEN
2 stops45h 30m
British Airways
Deal found 5/17![British Airways logo]()
$2,442
This FlightHub deal was found by Cheapflights users on 5/18. 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.
Thu 5/2810:02 am
DEN
- CCU
3 stops48h 43m
Singapore Airlines
Thu 6/1811:30 pm
CCU
- DEN
3 stops31h 40m
Singapore Airlines
Deal found 5/18![Singapore Airlines logo]()
$4,223
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 May 22, 2026.
Search for one-way flight options from Denver to Kolkata. Find affordable one-way fares based on user searches. Data last updated May 22, 2026.
This FlightHub deal was found by Cheapflights users on 5/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1512:55 pm
DEN
- CCU
2 stops26h 05m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$670
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 May 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,239 (oojo) |
One-way from | $670 (FlightHub) |
Popular in | December |
Cheapest in | October |
Average price | $1,702 |
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 May 22, 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
DenverKolkata
DEN - CCU
DENCCU
Denver Intl
Thu 8/13
11:59 pm-2:30 am
2 stops39h 01m
Kolkata Netaji S. Chandra
Thu 8/27
4:00 am-10:59 pm
2 stops30h 29m
$1,239
DenverKolkata
DEN - CCU
DENCCU
Denver Intl
Tue 6/2
5:40 pm-5:30 am
2 stops48h 20m
Kolkata Netaji S. Chandra
Tue 7/14
4:15 pm-3:40 pm
2 stops34h 55m
$1,518
DenverKolkata
DEN - CCU
DENCCU
Denver Intl
Wed 6/3
5:40 pm-8:15 am
2 stops51h 05m
Kolkata Netaji S. Chandra
Tue 7/14
4:15 pm-3:40 pm
2 stops34h 55m
$1,588
DenverKolkata
DEN - CCU
DENCCU
Denver Intl
Thu 5/28
4:05 pm-4:50 am
2 stops25h 15m
Kolkata Netaji S. Chandra
Thu 6/18
10:00 pm-3:40 pm
2 stops29h 10m
$1,791
Quickest round-trip
DenverKolkata
DEN - CCU
DENCCU
Denver Intl
Thu 5/28
4:05 pm-4:50 am
2 stops25h 15m
Kolkata Netaji S. Chandra
Thu 6/18
9:00 pm-2:20 pm
2 stops28h 50m
$1,854
DenverKolkata
DEN - CCU
DENCCU
Denver Intl
Sun 6/7
5:40 pm-8:15 am
2 stops51h 05m
Kolkata Netaji S. Chandra
Sat 6/20
10:30 pm-3:40 pm
2 stops52h 40m
$1,948
DenverKolkata
DEN - CCU
DENCCU
Denver Intl
Sun 6/7
9:00 am-2:30 am
2 stops30h 00m
Kolkata Netaji S. Chandra
Sat 6/20
4:00 am-9:11 pm
2 stops28h 41m
$2,024
DenverKolkata
DEN - CCU
DENCCU
Denver Intl
Sun 6/7
5:40 pm-5:00 am
2 stops47h 50m
Kolkata Netaji S. Chandra
Sat 6/20
4:15 pm-3:40 pm
2 stops34h 55m
$2,036
DenverKolkata
DEN - CCU
DENCCU
Denver Intl
Mon 7/6
3:55 pm-4:50 am
2 stops25h 25m
Kolkata Netaji S. Chandra
Mon 7/13
11:30 pm-7:40 pm
3 stops31h 40m
$2,253
Cheapest one-way
Quickest one-way
DenverKolkata
DEN - CCU
DENCCU
Denver Intl
Sat 8/15
12:55 pm-2:30 am
2 stops26h 05m
$670
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 May.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | 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 May 22, 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.
Comfort
7.3
Crew
7.9
Boarding
7.5
Entertainment
7.3
Overall
7.4
Food
7.3
Reviews
1 / 20
6.0
GoodChris,Jul 2025
DFW - DOH
Comfort
7.3
Crew
7.9
Boarding
7.5
Entertainment
7.3
Overall
7.4
Food
7.3
Reviews
1 / 20
6.0
GoodChris,Jul 2025
DFW - DOH
Comfort
7.3
Crew
7.9
Boarding
7.5
Entertainment
7.3
Overall
7.4
Food
7.3
Reviews
1 / 20
6.0
GoodChris,Jul 2025
DFW - DOH
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.
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Complete your trip
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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 May 22, 2026.
Denver and Kolkata flights
Browse other Denver and Kolkata flight options. Last updated on May 22, 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 May 22, 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 May 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$1,133 | Average$1,356 | FlexibilityNo cancel fee | On-time68% | |
| Cheapest$1,276 | Average$1,382 | FlexibilityNo cancel fee | On-time76% |