Billion Connect Discount Code: How Much You Can Really Save
By Nikos Andreadis · Oct 8, 2026 · 2 min read
Figures last verified Oct 8, 2026 — the code above is always live
10% off every Billion Connect eSIM plan with ESIMKART10 — exclusive eSIMKart code, no minimum spend, coupon valid 30 days once applied (confirmed by Billion Connect, 8 October 2026).
Billion Connect's ESIMKART10 code takes 10% off any of its eSIM plans, with no minimum spend. Every figure below is read live from the same database that prices every plan on this site.
What Billion Connect Actually Offers
Billion Connect has sold travel connectivity since 2015 and lists 1,626 active plans across 67 destinations on eSIMKart, every one of them a single-country plan rather than a regional bundle. Two thirds of the catalogue (1,162 plans) are daily-allowance "Unlimited" plans, typically 2GB of high-speed data per day. The real differentiator sits in the fixed-data plans: in most destinations, using up your allowance doesn't cut you off. Speed drops to a slow 128-384kbps instead, so messaging and maps keep working until you top up or buy a fresh plan. A few Japan plans are the exception and stop at the limit, and the plan details on each row say which kind you're looking at.
How Much the Code Actually Saves You
10% off, entered at checkout:
United States
- 5GB / 7 days: $3.50 → $3.15
- 10GB / 15 days: $7.20 → $6.48
- 20GB / 30 days: $14.00 → $12.60
- Unlimited (2GB/day) / 7 days: $7.09 → $6.38
United Kingdom
- 5GB / 7 days: $3.82 → $3.44
- 10GB / 15 days: $6.88 → $6.19
- 20GB / 30 days: $10.80 → $9.72
- Unlimited (2GB/day) / 7 days: $5.90 → $5.31
Japan
- 5GB / 7 days: $3.80 → $3.42
- 10GB / 15 days: $7.50 → $6.75
- 20GB / 30 days: $12.50 → $11.25
See the full catalogue behind these numbers: Billion Connect's US plans, Billion Connect's UK plans, or Billion Connect's Japan plans.
Where Billion Connect Fits
Billion Connect also runs public promotions alongside our code, and for some purchases they beat it: a first-order code for new customers and a Japan-only sale are listed in the deals section of Billion Connect's provider page. We haven't confirmed that codes can be combined, so assume one code per order and use whichever takes more off what you're buying. For a returning customer, or a destination outside those campaigns, ESIMKART10 is the one that applies.
Plans are valid for 90 days from purchase and activate automatically once the eSIM connects at your destination, so you can buy well before you fly. Refunds are only available before activation. Our travel data calculator gives a quick estimate of how much data you'll actually need.
How to Actually Use the Code
Enter the code shown in the discount card above at Billion Connect checkout. There's no minimum spend and it works on every plan. Once you've applied it, the coupon stays valid for 30 days, so you don't have to complete the purchase in one sitting.
Nikos writes about connectivity and travel from Athens, covering Greece and the wider Mediterranean and Europe. Between ferry-hopping the islands and city breaks across the continent, he tracks pricing straight from each provider's own feed and writes up what's actually worth booking.
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