Best sandiego SIM Card & eSIM Plans

Discover 31 SIM card in San Diego on Trip.com, updated 17 August 2026, with experiences lasting from 1 to 2 hours. Find the perfect adventure for your day!

From JPY 14 per person, with an average total of JPY 582. Choose the option that suits your plan.

With 39.982k verified reviews, SIM card San Diego boast an average rating of 4.4.

This week's most popular SIM card: "Global (77 Countries) 5G/4G eSIM | Supports Google Maps/TikTok/ChatGPT | Data Plan | 24-Hour Billing | 1–7 Days | QR code", with 31.886k reviews and a 4.4 rating.

The next available day tour departs on 18 August 2026. Book now to secure your spot!

San Diego SIM card usually take about 1 hours — perfect for a relaxed, immersive experience!

August is perfect for visiting San Diego! Choose from 31 available day tours, including seasonal hits like Global (77 Countries) 5G/4G eSIM | Supports Google Maps/TikTok/ChatGPT | Data Plan | 24-Hour Billing | 1–7 Days | QR code.

Your trip, worry-free! All day tours are run by licensed suppliers with verified reviews, and many include free cancellation before departure.

Search attractions or local attractions & tours
Book now for today
Book now for tomorrow

31 results for San Diego SIM card

1
2
Trip.comSan Diego
SIM card

Explore top experiences

See what other travellers love, based on ratings and bookings

AllAttractions (11224)Boat experiences (17)Cultural experiences (7)Food & drink (5)Day tours (43)Outdoor experiences (3)Water activities (1)Nature & wildlife (5)City sightseeing (17)SIM card (31)

Frequently asked questions about San Diego SIM card

How many SIM card are available in San Diego on Trip.com?

What are the best SIM card in San Diego?

What are the top-rated SIM card in San Diego?

How can I contact Trip.com customer support?

Can I change or cancel my booking?

How can I get discounted prices?

Reviews/Trip Moments

★
★
★
★
★
Reviews: US 5G eSIM | Three-network support, supports All AI & TikTok | 500MB/day - 100GB total | 1-90 days | 24-hour billing | QR code
Guest User2026-08-15
It is very easy to activate and use. The whole process was simple and straightforward and I had no problems getting everything set up. The price was also very reasonable compared with other options. Overall, it was convenient, good value for money, and worked well during my USA trip. I would definitely recommend it to other travelers! 👍✈️🌍📱😊
★
★
★
★
★
Reviews: United States/Canada 5G eSIM | Supports ChatGPT | Daily plan/total data | 24-hour billing | QR code (excluding Guam, Saipan)
Guest User2026-08-15
📲 Thank you for choosing our eSIM! ❤️ Your feedback means a lot to us. If you’re happy with your purchase, please leave us a review and share your experience. ⭐⭐⭐⭐⭐ Sail smart, stay connected! ⚓🌍 #eSIMForSeafarers #SeafarerLife #Feedback #ThankYou #StayConnected
★
★
★
★
★
Reviews: United States 5G eSIM | Full coverage by three networks | Supports ChatGPT | Daily plan/total data | 24-hour billing | QR code
Guest User2026-08-17
The internet works fast and without any problems, a very nice and cheap option for travelers, quick purchase and activation.
★
★
★
★
★
Reviews: AT&T USA 5G eSIM | Daily 100GB | Calls+SMS | Charged by calendar days | QR Code
Guest User2026-06-06
This US eSIM is absolutely amazing, and I couldn’t wait to share it with my travel companions. I installed it on my phone right before departure. After landing, I connected to AT&T’s cellular network instantly and got online straight away. The internet speed is fantastic with zero issues. Setup is super straightforward and hassle-free. We visited Las Vegas, and I had reliable service both indoors at hotels and outdoors. Best of all, it supports regular calls, making it really easy to get in touch with Uber and Lyft drivers! My travel buddies relied entirely on me for navigation and contacting ride drivers as soon as we got off the plane. They’ve all ended up purchasing this eSIM for themselves! Do yourselves a favor and grab one—it’s genuinely incredible and priced really well!!
★
★
★
★
★
Reviews: USA 5G eSIM | Supports popular apps like TikTok & Google Maps | Daily/Data packages | 1-30 days | Billed per 24 hours | QR code
Guest User2026-08-14
Very easy to use. The signal is good; there hasn't been a single area with weak signal since landing. The speed is good; I can use various apps without any problems.
★
★
★
★
★
Reviews: United States T-Mobile 5G eSIM | Local phone number | Reservation required for activation date | Calendar days billing | QR code (excludes Guam, Saipan)
Guest User2026-08-16
I've used this eSIM in New York and the Niagara Falls area, and it has generally worked perfectly except in some areas of the New York subway or with poor coverage. I definitely recommend it.

Trip.com picks

Popular Tour Products in San Diego

Popular Experiences in San Diego

Popular Products

Popular activities

Popular Things to Do

San Diego: Champagne Brunch CruiseSan Diego Liberty Station: Guided Walking TourSan Diego: Champagne Brunch Cruise with Dessert BuffetWhaley House Museum: After-Hours Paranormal InvestigationSan Diego: City Lights Night Tour by TrolleySan Diego Harbor: Gourmet Dinner Cruise with Live EntertainmentSan Diego: Ghosts & Gravestones TourSan Diego: Little Italy Food TourSan Diego Whale & Dolphin Watching AdventureSan Diego Bay: 90-Minute Sightseeing CruisePetco Park Tour - Home of the San Diego PadresSan Diego Harbor: 2-Hour Cruise with Live GuideBalboa Park: Guided Walking TourSolana Beach: Guided E-bike TourLa Jolla San Diego: Guided Kayak Tour for Two
San Diego City PassSan Diego Day ToursFood & Drink in San DiegoSan Diego Airport ServicesSan Diego Boat TicketsSan Diego Visa Application ServicesWellness & Spa in San DiegoSan Diego Restaurant DiscountsSan Diego TransportationSan Diego Local Tour GuidesSan Diego Connectivity SolutionsSan Diego Travel ServicesSan Diego Cultural ExperienceSan Diego Sports & AdventureBoat Experiences in San DiegoJR Pass — Japan Rail PassJR East Pass (Eastern Japan)JR West Pass (Western Japan / Kansai Area)JR Hokkaido PassJR Kyushu PassJR Shikoku PassJR Hokkaido Rail PassJR Pass Kansai Wide AreaJR Pass Setouchi AreaJR Pass Sapporo Furano AreaKansai JR Rail Pass 1-4 DaysChengdu Foodie Tour – Every evening at 5:00 PM Chengdu, Sichuan 1-Day Tour with Private DriverOahu: Guided Dolphin Watching Sunset Cruise + Snorkeling + BuffetHeraklion: Cretan Cooking Lesson with Lunch in ArolithosAmsterdam: Amsterdam Dungeon and Canal Cruise Linh Ung Pagoda's Guanyin Statue + The Marble Mountains Half-Day TourGuided StandUp Paddle Board Lessons with Breathtaking Views in Tanjung Aru | SabahPlettenberg: 2-Hour Zipline TourFrankfurt, Germany - Old Opera House - Goethestraße - Frankfurt Cathedral - private charter - top pickKarlstejn Castle and Czech Grand Canyon Tour privateThings to do in KazakhstanThings to do in TaipeiThings to do in BahrainThings to do in HonoluluThings to do in YangshuoThings to do in Phan ThietThings to do in IncheonThings to do in QatarThings to do in KamakuraThings to do in UzbekistanThings to do in Hoa Lu DistrictThings to do in ShaanxiThings to do in ShenzhenThings to do in MilanThings to do in New Delhi