Why Book Nonstop?
Fastest Travel Time
16h 8m direct
No Layovers
Skip the connecting airport
Less Hassle
Fewer chances for delays
Single Airport
Only one security check
Check nearby airports for additional nonstop options
Consider these alternatives for more direct flight options
Best time to book
For this corridor, fares are typically most competitive 10–16 weeks before departure.
Booking window: 10–16 weeks before departure
Watch-and-wait: If your dates are fully flexible, monitoring 4–6 weeks before departure sometimes reveals last-minute inventory — though this is not guaranteed on long-haul routes.
Corridor heuristics for India corridor — strong seasonal demand pattern. These are typical patterns, not guaranteed price predictions.
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Frequently Asked Questions
Direct flights on this route may require a connection. However, one-stop options are available with convenient layovers. Total travel time is typically 16h 8m to 17h 8m.
Airlines commonly operating the San Francisco to Kolkata route include UA, AA, DL, WN. Check specific schedules for nonstop availability.
A nonstop flight from San Francisco (SFO) to Kolkata (CCU) takes approximately 16h 8m. Actual time may vary based on weather and flight path.
Consider traveling during shoulder seasons (spring/fall) for the best balance of prices and weather. For domestic US flights, booking 1-3 months in advance typically yields the best prices.
This route typically requires one connection. Total travel time is usually 16h 8m to 17h 8m depending on the connecting city.