AI174 San FranciscoSFO · 11:00 KolkataCCU
AI174 by Air India flies from San Francisco (SFO) to Kolkata (CCU) for the Mon, Oct 26 departure.
today's SFO → CCU operation will not depart
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Early read, sample still buildingConditions at SFO and CCU are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. For this route and airline, under conditions like today's, over the last 90 days. This route's tracked sample is still thin — treat these as an early read, not a precise forecast.
Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other San Francisco to Kolkata flights today
same route · Air IndiaIf AI174 is cancelled, these are the other Air India nonstop flights from San Francisco to Kolkata on the same day, with scheduled departure times in SFO local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How AI174 actually runs
Pro Flight Search has tracked every published board update for AI174 across the SFO and CCU boards: schedule changes, gate pushes and actual clocks. Combined risk score: 50.0/100. Based on airport operations, weather, and cached board history at SFO and CCU.
The verdict above is that record speaking, so it reflects how AI174 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationBoard clocks recorded as SFO and CCU published them.
Planning around AI174? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Pro Flight Search — AI174 San Francisco to Kolkata on-time performance, measured from the SFO and CCU airport boards.
https://proflightsearch.com/flight/AI174
.