The one date that decides it
Not the sale date. The plan’s use-by date.
A travel eSIM has two clocks and people mix them up constantly.
- The use-by date is how long you have to start the plan after you buy it. Ours are mostly 180 days.
- The validity period is how long the plan runs once it has started. That is the 7 days or 30 days in the plan name.
A November sale works for you when the use-by date comfortably reaches your departure. Check that one number and the rest of the decision is easy.
On a plan with a 180-day use-by, buying on 27 November 2026 can give you until late May 2027 to start. Many other plans, including the new unlimited range, have a 60-day window and need starting around 26 January 2027. The exact selected-plan date controls; check it before buying for a later trip.
Should you wait? By departure date
| When you fly | What to do | Why |
|---|---|---|
| Before 27 November 2026 | Buy now | You fly before the sale opens. Get the plan that fits the trip and land connected. |
| 27 November to 31 December 2026 | Wait, then get ready straight away | You are travelling during or just after the sale, so the timing works. Buy it, save the setup email and check your phone before you go. |
| January to May 2027 | Check the selected plan | A 180-day use-by can reach much of this period. A 60-day plan, including the unlimited range, needs starting by about late January. |
| June 2027 or later | Buy closer to the trip | You will get a use-by that covers your departure, which is worth more than a discount that expires first. |
| Trip not booked yet | Check the refund position first | Check both the selected plan’s start window and the unused-plan refund terms before buying ahead of a booking. |
That last row is the one worth a minute of your time. A refund promise can limit the financial risk of a changed trip, but it cannot keep a 60-day plan usable for a later departure. Check the plan’s start window too.
Two things to watch if you wait
Four days is a short wait and for most people an easy one. Two things are worth keeping an eye on.
If you are flying in early December, get ready the day you buy it. Save the setup email somewhere you can reach offline, check that your phone is unlocked and eSIM compatible, and find the Add eSIM setting before you leave. After you land, join the airport wifi, finish its sign-in and load a normal page before installing from the saved email. If the airport connection is unreliable, wait for hotel or another trusted, steady wifi connection.
If the plan you want is one of the cheap ones, the discount is small. Thirty per cent off a plan under A$15 is a few dollars, so if you would rather have it sorted today, buy it today. There is very little in it either way.
What waiting can get you
The honest version, using our own sale as the example, because it is the one whose numbers we can actually publish.
From 27 to 30 November 2026, plans marked Black Friday at The SIM Shop get 10%, 15%, 20%, 25% or 30% off, or a free data upgrade, and each plan shows which one it has. Indonesia 10GB is A$12.57 and Japan 3GB is A$8.37. Japan 10GB keeps its A$19.95 price and we send the 20GB plan instead. Japan 20GB is 25% off at A$22.46. The full picture is on our Black Friday page.
Worth knowing before you plan around a number: each plan carries its own offer. Our planned discounts run at five depths depending on the plan’s supply cost, and some plans get a bigger eSIM instead of money off. All 82 current unlimited variations are in the planned sale list; they get a percentage discount rather than a data upgrade. Look at the exact selected plan when the sale opens, because its live offer and 60-day start window decide whether it fits your trip.
Two general points that apply whoever you buy from.
The price under the percentage is what makes the deal. A smaller discount on a fairly priced plan beats a big one on a plan priced high in October. Ten minutes in early November settles it: note the prices of the two or three plans you are considering, then look again on the 27th.
An upgrade can be worth more than a discount. More data for the same money is excellent when you will use it. If you were only ever going to use 3GB in Japan, take the discount on the 3GB plan instead. Match the offer to how much data you actually use.
When buying today is the better move
We sell these and we are still going to say it, because it is the right answer for a good share of the people reading.
Data on arrival is worth more than a discount. The failure mode is not paying too much. It is landing in Denpasar at 11pm with no way to reach the driver.
A plan bought now can be prepared now. Save the setup email somewhere you can reach offline, check that your phone is unlocked and eSIM compatible, and find the Add eSIM setting before you fly. Install after you land, once you have joined working airport wifi and loaded a normal page. If the airport connection is unreliable, use hotel or another trusted, steady wifi connection.
If your trip is in the next few weeks, today’s plan is the useful one. Buy the plan that fits it and travel covered.
If you are in that group, our guide to how far ahead to buy a travel eSIM is more useful to you than this page.
If you are ready to look at plans, our full destination list shows the current sizes and validity periods.
If you do wait, what to check on the day
Late November is when travel eSIM retailers generally run offers, so if you are going to compare, that is the week to do it. Five things are worth checking before you buy anything, and we have written them up separately in what to check on a Black Friday eSIM deal.
The short version:
- What currency is the price in at checkout, not on the landing page.
- Is it total data or daily data, because those are different products.
- What is the use-by date, which is the whole subject of this page.
- Is the percentage against a price that stood before the sale.
- What happens if you never use it.
Questions people actually ask
When is Black Friday 2026?
Friday 27 November 2026. Sales generally run through the weekend to Cyber Monday on 30 November.
Do travel eSIM prices actually drop on Black Friday?
Some do. A percentage off is only meaningful against a price that stood before the sale, so the useful move is to note the prices of the plans you are considering in early November and check them again during the sale.
Can I buy a travel eSIM months before my trip?
Usually yes, up to the plan’s use-by date. On most of our plans that is 180 days from purchase. Check the use-by on the specific plan.
What happens if I buy an eSIM and never use it?
That comes down to the retailer’s refund policy, so it is worth finding before you buy. On our Black Friday plans, an eSIM that remains uninstalled, unactivated and unused can be returned under our voluntary change-of-mind promise within 12 months of purchase. It does not extend the plan’s use-by period.
Is 30% off a travel eSIM a good discount?
It is a solid size for the category in late November. What makes it a good outcome is the price underneath it and whether the plan suits your trip. Check the plan you actually want, because a retailer running a range of offers may be doing better on your plan than the headline suggests.
I fly next week. Should I wait?
Buy now. Get the plan you need, save the setup email and check your phone before you go, then install after you land on working wifi.
Is it better to get a bigger plan free or a discount on a smaller one?
Whichever matches how much data you actually use. If you know roughly what you get through at home in a week, that is a reasonable starting estimate for a trip, and it tells you which offer is the better one for you.
Should I buy an eSIM for a trip I have not booked yet?
Check the selected plan’s start window and what happens if you never use it. Buying ahead makes sense only if the plan can still be started when you expect to travel; the refund promise matters if the trip changes.
Sources
Black Friday 2026 falls on 27 November, the fourth Friday after the US Thanksgiving holiday on 26 November. The SIM Shop campaign window, mechanics and prices from our own Black Friday terms and Black Friday page. Use-by periods from the individual plan pages, checked 14 September 2026. Change-of-mind conditions from The SIM Shop’s refund policy. Consumer guarantees, and the position that a business must honour a change-of-mind policy once it offers one, from the ACCC’s repair, replace, refund, cancel guidance. Other retailers set their own use-by periods and refund terms; check theirs on their own pages.
Written by Lachlan, who runs The SIM Shop from Brisbane and answers the support email himself.

