If you're searching for a metro route to Ahmedabad's Sardar Vallabhbhai Patel International Airport, save yourself the trouble: it doesn't exist yet. Here's the honest state of things and what to do instead.
No direct metro to the airport today
There is currently no operating metro line or station at the airport. This isn't a case of slow last-mile connectivity from a nearby station — the airport simply isn't on the network yet.
An extension is approved, but not built
A roughly 6 km, 5-station extension — running through Ashram Road, Koteshwar Prachin Mandir, Sabarmati River, Sardar Nagar, and finally an underground Airport station — has state government approval, and the detailed project report has been sent to the Centre for sign-off. The Gujarat Cabinet has also cleared a related, larger extension package. None of this is under construction yet, and there is no confirmed opening date. Treat this as a coming, not live project — don't plan a trip around it.
How to actually get to the airport today
Your options are the same as they'd be without a metro at all: a taxi, an auto-rickshaw, or a ride-hailing app from the city. There's no confirmed shuttle-bus program specifically linking a metro station to the airport, so budget for a full road trip rather than expecting to combine a short metro ride with a quick hop at the end.
What to do once the extension opens
When the airport extension is built, this guide will be the place to check for the fare, journey time, and which line/station to use for your specific starting point. Until then, plan your airport transfer as a standalone cab or auto ride, and don't rely on the metro to shortcut it.