On Telstra postpaid plans, the International Roaming Day Pass is A$5 a day in New Zealand and A$10 a day in the US, the UK, Japan and Indonesia, so a week there costs 7 x A$10 = A$70 (US$49.23). Travel periods of 6 to 8 days used a median of 1.38 GB in Bcengi's 2026 sample. Paying as you go, that trip's 1.38 GB costs $2.50 in Indonesia at $1.81/GB, metered by the KB (Bcengi's prices are in US dollars). Bcengi is about 20 times cheaper for this trip.
This page is for Telstra customers who pay for roaming: postpaid plans with the Day Pass and Pre-Paid with Travel Packs. Prices are as listed on Telstra's website, read October 3, 2026.
What Telstra charges for data abroad
- Postpaid: Telstra's International Roaming Day Pass is A$10 a day with 2 GB in Zone 2, which includes the US, the UK, Japan and Indonesia, so 7 x A$10 = A$70 (US$49.23) for a week; in New Zealand, in Zone 1, it is A$5 a day, 7 x A$5 = A$35 (US$24.62).
- Each day costs the same however little data you use that day.
- Pre-Paid: Telstra's 7 Day Travel Pack is A$15 (US$10.55) for 2 GB and the 14 Day Travel Pack A$25 for 4 GB; Telstra lets several packs run at the same time.
The trip uses 1.38 GB of Telstra's 2 GB 7 Day Travel Pack, so nearly a third of what you paid for is left unused when it expires.
What a 7-day trip costs: the Day Pass or paying as you go
Paying as you go with Bcengi, a trip costs what its data costs. Each line below is a model for a trip of 6 to 8 days: the median (1.38 GB) and the 90th percentile (6.50 GB) from the usage report, times the country's rate on October 3, 2026.
- Indonesia rates: a median 7-day trip (1.38 GB at $1.81/GB) costs $2.50 with Bcengi; at the 90th percentile (6.50 GB at $1.81/GB), $11.77. Against 7 days of Telstra's Day Pass, the median trip is about 20 times cheaper and the 90th percentile trip about 4 times cheaper.
- New Zealand rates: a median 7-day trip (1.38 GB at $1.81/GB) costs $2.50 with Bcengi; at the 90th percentile (6.50 GB at $1.81/GB), $11.77. Against 7 days of Telstra's Day Pass, the median trip is about 10 times cheaper and the 90th percentile trip about 2 times cheaper.
- United States rates: a median 7-day trip (1.38 GB at $1.68/GB) costs $2.32 with Bcengi; at the 90th percentile (6.50 GB at $1.68/GB), $10.92. Against 7 days of Telstra's Day Pass, the median trip is about 21 times cheaper and the 90th percentile trip about 4.5 times cheaper.
- Japan rates: a median 7-day trip (1.38 GB at $2.82/GB) costs $3.89 with Bcengi; at the 90th percentile (6.50 GB at $2.82/GB), $18.33. Against 7 days of Telstra's Day Pass, the median trip is about 13 times cheaper and the 90th percentile trip about 2.5 times cheaper.
- United Kingdom rates: a median 7-day trip (1.38 GB at $1.19/GB) costs $1.64 with Bcengi; at the 90th percentile (6.50 GB at $1.19/GB), $7.74. Against 7 days of Telstra's Day Pass, the median trip is about 30 times cheaper and the 90th percentile trip about 6.5 times cheaper.
What a 7-day trip costs on Telstra Pre-Paid
On Telstra Pre-Paid, the median trip is covered most cheaply by the 7 Day Travel Pack (A$15) and a trip at the 90th percentile by two 14 Day Travel Packs, 2 x A$25 = A$50 (US$35.17) for 8 GB.
- Indonesia and New Zealand: a median 7-day trip (1.38 GB at $1.81/GB) costs $2.50 with Bcengi; at the 90th percentile (6.50 GB at $1.81/GB), $11.77. Against Telstra's 7 Day Travel Pack, the median trip is about 4 times cheaper; against two 14 Day Travel Packs, the 90th percentile trip is about 3 times cheaper.
- United States rates: a median 7-day trip (1.38 GB at $1.68/GB) costs $2.32 with Bcengi; at the 90th percentile (6.50 GB at $1.68/GB), $10.92. Against Telstra's 7 Day Travel Pack, the median trip is about 4.5 times cheaper; against two 14 Day Travel Packs, the 90th percentile trip is about 3 times cheaper.
- Japan rates: a median 7-day trip (1.38 GB at $2.82/GB) costs $3.89 with Bcengi. Against Telstra's 7 Day Travel Pack, the trip is about 2.5 times cheaper.
- United Kingdom rates: a median 7-day trip (1.38 GB at $1.19/GB) costs $1.64 with Bcengi; at the 90th percentile (6.50 GB at $1.19/GB), $7.74. Against Telstra's 7 Day Travel Pack, the median trip is about 6.5 times cheaper; against two 14 Day Travel Packs, the 90th percentile trip is about 4.5 times cheaper.
For how bundles and pay as you go compare, see bundles vs pay as you go.
What you get with Bcengi
- One reusable eSIM: install it once and use it on every trip.
- A balance that never expires: what one trip does not use is there for the next.
- No plan to pick: you never guess a size before you travel.
- Top up any time, by hand or with auto-refill.
- Your phone number stays on your home SIM for calls and texts; Bcengi is data only.
Telstra roaming questions
How much is Telstra's International Roaming Day Pass?
Telstra's Day Pass is A$10 a day in Zone 2, which includes the US, the UK, Japan and Indonesia, and A$5 a day in Zone 1, which includes New Zealand, with 2 GB a day.
How do I use a travel eSIM instead of Telstra roaming?
Install the eSIM before you leave, set it as your data line, and turn data roaming off for your Telstra line so it does not use data abroad. See turn roaming off on your home line.
How these figures were measured
The usage figures come from Bcengi's 2026 International Mobile Data Usage Report: a stratified random sample of 10,000 travel periods, with usage from January 1 to September 30, 2026. The figures cover every destination in the sample, not one country.
Each trip cost on this page is a model, not a bill: the GB a trip used times the per-GB rate on our pricing page on October 3, 2026. Rates can change; the pricing page always has the current ones.
Australian dollar prices are converted to US dollars at the Federal Reserve's rate for September 25, 2026, 0.7033 US dollars per Australian dollar.
Updated October 3, 2026. Sources: Telstra's international roaming and Pre-Paid international roaming pages; Federal Reserve exchange rates; Bcengi 2026 International Mobile Data Usage Report; Bcengi pricing page.
