Airtel International Roaming in the UK: Packs, Prices and OTPs

For mobile data, a HelloRoam UK eSIM with 24/7 support can run your maps and chat apps from the moment you land, while the Airtel SIM stays put for calls and OTPs.

Airtel international roaming packs for the UK differ for prepaid and postpaid

We read every Airtel price and rule in this guide on 4 November 2026: Airtel's international roaming terms (a PDF created on 24 September 2026), its prepaid recharge page and its press release of 7 October 2026. One pack works in the UK and in every other country on Airtel's covered list.

These are the packs Airtel's terms list. Pack minutes count calls you make and calls you answer, to UK and Indian numbers alike:

The prepaid ₹2,998 pack and the 30, 90 and 365-day postpaid packs add 250MB of in-flight data, 100 minutes and 100 texts on selected international flights. Airtel's list of covered flights includes Emirates, Etihad, Turkish Airlines and Lufthansa on certain aircraft, but not Air India, British Airways or Virgin Atlantic, and Airtel says the list can change. The ₹4,999 pack also covers you in India, with 2.5GB a day, unlimited calls and 100 texts a day, and its year starts on the day you recharge. Postpaid customers in Airtel's Maharashtra circle get their own list: a 7-day pack (₹2,599, 5GB at high speed) and a 14-day pack (₹3,499, 20GB) take the place of the 10-day pack, and the 30, 90 and 365-day packs stay the same.

When the allowance runs out, prepaid and postpaid part ways. Prepaid data stops at once, and a ₹699 top-up adds 2GB for the rest of the pack. Postpaid data slows to 80kbps. On both, extra calls cost ₹10 a minute and extra texts ₹5, and calls to numbers that are neither UK nor Indian cost ₹45 a minute.

Airtel's own pages don't all agree. The FAQ on its roaming packs page still lists the 5 and 10-day packs at ₹898 (2GB) and ₹1,198 (3GB), while its terms say those two packs were repriced from 29 July 2026 and its recharge page shows ₹998 and ₹1,298. A pack panel on Airtel's blog and a worked example in Airtel's terms give the year pack 5GB, where the terms' pack table and the recharge page say 7GB. Check the price for your number on the recharge page or in the Airtel app before you pay.

Free roaming on new Airtel postpaid plans covers one five-day trip a year

Since 8 October 2026, Airtel's new postpaid plans include one international trip a year with free roaming, per SIM. Airtel says the free pack gives 5GB of data, 60 minutes of calls, 25 outgoing texts and free incoming texts, valid for five days, and you choose when it starts. The plans' rentals run from ₹499 for one SIM to ₹1,799 for a family of five, and every SIM on a family plan gets its own trip.

Existing prepaid and postpaid customers can move to these plans in the Airtel app or at an Airtel store. A UK stay longer than five days needs a paid pack after the free one: Airtel's terms let a postpaid customer buy a new pack once no pack is active.

Postpaid roaming switched on with no pack at all is billed at standard rates until the day's charges pass ₹698. Airtel then puts that day on a ₹698 pack with 1GB, 100 minutes, 10 outgoing texts and unlimited incoming texts, until 11:59pm local time. Seven such days in London come to ₹4,886 in day packs alone, against ₹2,999 for the 10-day postpaid pack, or ₹2,599 for the 7-day pack in Airtel's Maharashtra circle. The charges arrive on a later bill, and Airtel's terms say they are never waived.

Activating Airtel international roaming starts before you fly to the UK

International roaming is switched off by default on every Airtel number, and buying a pack switches it on. Airtel's terms keep the roaming service and roaming packs apart: the service can be on with no pack, and then you pay standard rates. Before and after the flight:

1. Buy the pack on Airtel's international roaming page or in the Airtel app. Prepaid packs can be bought up to 30 days before you travel, postpaid packs up to 365 days. A 1 to 30-day prepaid pack expires with no refund if you don't travel within 30 days of buying it.
2. Cancel call divert and voicemail before you leave the Indian network. Airtel's terms say a diverted call uses both incoming and outgoing minutes, and give ##002# as the code that cancels it.
3. Switch on Data Roaming for the Airtel line if you plan to use its data. On an iPhone with two lines, it sits under Mobile Data, then the number, then Mobile Data Options, as Apple's data roaming guide shows. On a Samsung Galaxy, it is under Settings, Connections, Mobile Networks.
4. Land, then make a call, send a text or use data. The pack starts with that first chargeable use on a UK network, and on prepaid even an incoming text counts.
5. No signal? Airtel says to restart the phone, then pick a network by hand. If that fails, call or WhatsApp Airtel on +91 99100 99100.

Pack days don't all end at midnight. A prepaid day ends at 11:59pm Indian Standard Time, while a postpaid day ends at midnight local time where you first used the pack. In Airtel's own example, a prepaid customer who lands at 6pm IST has less than six hours of day one left, so a pack started late in the Indian day loses most of its first day.

Two groups need a check first. Prepaid SIMs from the Assam, North East and Jammu and Kashmir circles get no international roaming at all. And a data bar you set for use in India does not follow you abroad: Airtel's terms say data can still flow, and be charged, once roaming is on. If Airtel's packs don't suit your trip, our guide to internet abroad covers data roaming, WiFi and eSIMs.

Watch for two exclusions. Pack minutes don't cover local freephone numbers, which Airtel's terms say are charged, so a call to a UK bank's freephone line costs money. Pack benefits also don't apply on maritime, satellite or cruise-ship networks, so phone use at sea is charged on top of the pack.

Airtel roams on Vodafone, O2 and Three in the UK

Airtel's terms name four UK partner networks: Vodafone, O2 (listed as Telefonica), Three and Cable & Wireless. EE is not on that list. The same terms say packs apply across all operators in a covered country, so you should not need to pick a network unless the phone shows no signal.

Jersey, Guernsey, the Isle of Man and Gibraltar each have their own line on Airtel's covered list, as does Ireland, so a hop to Dublin or Jersey runs on the same pack. One exception: Airtel's terms say outgoing calls don't work on prepaid packs in the Isle of Man.

This guide covers Airtel India. Airtel's networks in Africa, such as Airtel Zambia, sell their own roaming bundles under their own rules.

Bank OTPs keep reaching your Airtel number in the UK

OTPs arrive by text, so the Airtel line only has to receive SMS. Airtel's prepaid packs list incoming texts as free, and so does the free postpaid trip pack.

If you only need the texts, prepaid customers can switch roaming on for ₹118 instead of buying a pack. It lasts 28 days and gives unlimited incoming SMS, while data, calls and outgoing texts are charged at standard rates from your main balance. Airtel attaches two conditions: your prepaid plan must stay valid for those 28 days, and if your main balance runs short, only incoming SMS keep working.

For a stay of several months, such as a UK degree, the ₹4,999 year pack is the simpler route. It runs for 365 days from the recharge, works in India too, and covers 200 outgoing texts abroad. Postpaid customers can switch roaming on without a pack in the Airtel app or through customer care, and pay standard rates for what they use, with the ₹698 daily cap above.

One warning before you fly: don't move your Airtel number to an eSIM just before you leave. Airtel's eSIM page says incoming and outgoing SMS, OTPs included, stay barred for 24 hours after an eSIM request.

A UK eSIM can carry your data while the Airtel SIM keeps your number

Apple's travel guide says an iPhone that has a SIM tray can use both a physical SIM and an eSIM abroad. Samsung says several newer Galaxy models take an eSIM alongside a physical SIM slot, and Samsung's dual SIM guide shows how to choose which SIM handles calls, texts and data. That lets the Airtel SIM keep your number for calls and OTPs while a UK eSIM carries the data. Our eSIM vs physical SIM comparison sets out how the two kinds of SIM differ.

• iPhone: choose the data line under Settings, Mobile Data, Mobile Data. Apple warns that with both lines on, you might still pay roaming fees on your home line, and you can turn Data Roaming off for the Airtel number alone in its own Mobile Data Options.
• Samsung Galaxy: choose the data SIM under Settings, Connections, SIM Card Manager, Mobile data. Data Roaming is one switch for the whole phone, so leave it on for the eSIM and let the SIM choice keep the Airtel line off data. Samsung says auto data switching moves to the other SIM if the preferred one fails, so leave it off to keep data on the eSIM.
• Apple says an iPhone must be unlocked to use another provider's eSIM. Before you buy one, check your phone supports eSIM.

HelloRoam sells travel eSIMs, so this part is about our own product, as our conflict of interest policy explains. HelloRoam UK plans are data only, with no calls, texts or emergency calls, so the Airtel SIM stays your phone line. On 4 November 2026 our UK plan page listed EE and Three as its networks; networks can change, and the plan page shows the current list.

An Airtel pack is the better buy if you'll make lots of calls on your Indian number, because its minutes cover calls to India. A UK eSIM suits data-heavy stays, and the two together keep both jobs going. Before you choose, work out how much data your stay needs, and see how eSIMs compare with roaming.

Airtel packs can be topped up and tracked from the UK, but not cancelled once started

Data use shows in the Airtel app in near real time, while calls and texts can take up to four hours to appear. Prepaid customers get text alerts at 50%, 80% and 100% of the pack's data, postpaid customers at 50%, 90% and 100%.

A second prepaid pack bought while one is running adds its data, minutes, texts and days to the first, up to 730 days in all; the ₹4,999 year pack adds its benefits abroad but keeps its own 365 days. A postpaid customer can add a high-speed data top-up only once the pack is running abroad. To buy from the UK, Airtel's terms advise a call or WhatsApp to +91 99100 99100 to avoid unwanted charges.

A pack can't be cancelled once its days have started. Postpaid customers can cancel one that hasn't started through customer care or the Airtel app. Postpaid roaming usage can reach your bill up to three bills later, because partner networks report it late, and Airtel's terms say the partner's figures decide what you pay.