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An eSIM for San Diego from HelloRoam starts at £2.14 per day across 204+ carrier networks in 185+ countries. Activate via QR code in under two minutes on any eSIM compatible phone. Keep your EE, Vodafone, or Three number active through dual SIM.
194+
Mobile networks
5G
5G support
under two minutes
Setup
![4G 5G [[networkType]] speed](/icons/figma-2026/stats-speedometer.svg?dpl=dpl_EioS3cGxuTFw9jiCyxar8RoWYu9P){kind=icon}
Last updated
Your San Diego eSIM with local network coverage
Cheap eSIM for San Diego, starting from £2.14. Local 4G LTE and 5G data on top carrier networks in San Diego. Works on all eSIM compatible phones. Skip the counter at San Diego Airport and land with data already running. An eSIM in San Diego from HelloRoam connects from £2.14 to America's top mobile networks on T-Mobile and Verizon 5G with solid coverage across the Gaslamp Quarter, Balboa Park, La Jolla, and Coronado Island. HelloRoam activates via QR before you fly from the UK. No physical SIM card, no airport queue on arrival, no fuss. Choosing an eSIM San Diego from HelloRoam means instant QR delivery, no contract, and local network speeds from the moment you land.
