To have data right after landing at San Francisco International (SFO) or Oakland International (OAK) airports, activate your eSIM before your flight. Purchase and install your Cellesim eSIM plan while still at home. Once your plane lands and you turn off airplane mode, your device will connect to a local network, providing instant access to maps and ride-sharing apps.
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How do I get mobile data immediately after landing at SFO or OAK?
Updated May 30, 2026
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