Quick answer: for most UK travellers heading to Turkey, Yesim and Airalo are the two worth buying first. Yesim's entry plans start from around 45p and its average day rate for Turkey sits near £1.71, while Airalo runs a full unlimited-data ladder from £9 for 3 days up to £53 for a month. Between them they cover a long weekend in Istanbul or a full two-week loop through Cappadocia and the coast. The full comparison below covers all five providers on TravAir's Travel Essentials page, so you can match the plan to your trip.
You've booked the flight, sorted the hotel in Sultanahmet or Cappadocia, and maybe even downloaded a phrase app for the bazaar. Then you land, and the only WiFi you can find is the airport's, which drops the moment you queue for a taxi. No maps, no BiTaksi, no way to tell your driver where you actually are.
UK roaming in Turkey isn't covered by the old EU-style caps, so it can run £5 to £8 a day just to use your existing number, sometimes more depending on your network. Picking up a local SIM at Istanbul Airport is an option, but it means a queue, your passport, and a few minutes of a shop assistant setting it up while your taxi meter (or your patience) runs.
An eSIM skips all of that. It's a digital SIM already built into most modern phones. You buy it and install it before you fly, then it switches on the moment your plane touches down in Istanbul, Antalya or Bodrum. No shop, no physical card, no surprise bill when you land home.
Turkey is an easy country to enjoy and a genuinely confusing one to navigate without data. Here's where it actually matters:
For a typical week in Turkey, an eSIM usually costs somewhere between £6 and £20 depending on how much data you actually use. Set against £5 to £8 a day in UK roaming charges, it pays for itself within the first two or three days.
An eSIM is a digital SIM card built directly into your phone's hardware. Instead of pushing a physical card into a tray, you scan a QR code or install a downloaded profile, and your phone connects to a local network the moment you're in range of it.
Most phones from the last five or six years support eSIM, including every iPhone from the XS onwards, Samsung's Galaxy S range from 2019 onwards, Google Pixel 3 and later, and most current flagship Android phones. For the technical detail on how the standard actually works, the GSMA's eSIM explainer is a solid starting point.
To check your own phone, go to Settings > General > About on an iPhone, or Settings > Connections > SIM Manager on a Samsung. If an "Add eSIM" option shows up, you're set.
Worth checking first: phones bought on certain budget contracts, or bought outside the UK, are sometimes eSIM-locked to a single carrier. If in doubt, ask your network before you buy a plan.
All five providers below are available directly on TravAir's Travel Essentials page. Here's an honest look at each one for a Turkey trip specifically.
Yesim's Turkey pricing is the cheapest headline rate of the five, with an average day rate that undercuts most competitors on a short trip.
Airalo is the world's largest eSIM marketplace, and its Turkey plans scale cleanly from a long weekend to a full month, all on unlimited data.
Saily is built by the team behind NordVPN, and it shows in how clean the app itself is. For anyone installing an eSIM for the first time, it's about as friction-free as this gets.
GigSky leans premium, aimed at travellers who'd rather pay a little more than risk a dropped connection mid-trip.
Drimsim works differently to the other four. Instead of buying a Turkey-specific plan, you top up one universal balance, and the rate simply adjusts to whichever of its 190-plus countries you're standing in.
| Provider | Best for | Entry price | Network |
|---|---|---|---|
| Yesim | Cheapest for short trips | From ~£0.45 | Multiple Turkish carriers |
| Airalo | Best overall for longer stays | From £9 (3 days, unlimited) | Türk Telekom (Avea) |
| Saily | Simplest app experience | From ~£2.99 | Multiple Turkish carriers |
| GigSky | Reliability over price | Higher than budget options | Priority data access |
| Drimsim | Frequent international travel | Pay as you go | Multiple carriers, auto-switching |
For most UK travellers on a standard week to ten days in Turkey, Yesim or Airalo cover it comfortably. Yesim wins on raw price for a short trip, Airalo wins if you'd rather not think about a data cap at all.
It depends on how you actually use your phone once you're there:
If your trip includes a lot of driving between Cappadocia's cave hotels and viewpoints, or the coastal stretch between Antalya and Bodrum, an unlimited plan removes any temptation to switch maps off to save data right when you need them most.
Install everything before you fly. Once it's on your phone it works without WiFi, but the initial setup needs an internet connection to pull the profile down.
Yes. Coverage from Turkey's main carriers extends well beyond Istanbul, including Cappadocia, the Aegean and Mediterranean coasts, and most inland towns. Speeds can dip in very rural or mountainous stretches, which is normal for any provider, not specific to eSIMs.
Yes. Your physical UK SIM stays in the phone for calls and texts on your usual number, while the eSIM handles data separately. Both run at the same time with no extra setup.
In almost every case, yes. UK roaming in Turkey commonly runs £5 to £8 a day. A week-long eSIM with enough data for maps and messaging typically costs £6 to £15 in total, so it often pays for itself inside the first two days.
No. BiTaksi, Uber and similar apps work with your existing international phone number. You just need a working data connection, which the eSIM provides.
All five providers here let you top up or buy an extra data bundle from inside the same app, so there's no need to buy a second eSIM. It usually takes a couple of minutes to add more.
Turkey rewards a bit of spontaneity, an extra stop at a viewpoint, a detour through a market street you weren't planning on. None of that works as well if you're also hunting for WiFi to check a map. All five providers here are available on TravAir's Travel Essentials page, so pick the one that matches your trip and get it installed before you leave the UK.
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