Cheapest SIM card deals in the UK: no-contract plans for new arrivals in 2026
The cheapest UK SIM cards start from £5 a month — no contract, no credit check, and no UK address required. This guide compares the best value plans available in 2026 for new arrivals, international students and anyone who needs to keep costs down while settling in.
What "cheap" actually means for a UK SIM in 2026
The cheapest SIM card deal is not always the one with the lowest headline price. What you actually pay depends on how you use your phone. A £5 plan with 5GB of data is excellent value if you mostly use Wi-Fi. A £10 unlimited plan is cheaper in practice if you stream video or use mobile data heavily. The right comparison is cost per gigabyte, not just the monthly figure.
For new arrivals specifically, there is an additional dimension: the credit check barrier. Fixed-term contracts — the plans that appear in most "best value" comparisons — require a UK address and a credit check. Most new arrivals cannot pass a UK credit check in their first months, not because of bad credit, but because they have no UK credit history at all. That eliminates the cheapest fixed-term deals from the picture entirely. The options in this guide are all Pay As You Go or rolling monthly — no credit check, no contract, cancel any time.
The UK mobile market in 2026 is competitive. Plans change monthly and promotional pricing is common — the prices stated in this guide were accurate at publication but should always be verified on the provider's website before purchasing. What does not change is which providers offer the best structural value and which networks give the best coverage for your location.
The cheapest SIM card deals in the UK for new arrivals
These six providers cover the main value scenarios: pure cheapness, international calling, unlimited data, pay-per-use flexibility, airport convenience, and all-network comparison. All are no-contract. None require a credit check.
giffgaff is the default recommendation for new arrivals and with good reason. Running on O2, it covers most of the UK well, and its goodybag plans start from £6 per month — data, calls and UK texts included, cancel any time. The SIM card itself is free and can be ordered online for delivery to an overseas address before you travel. eSIM is supported on compatible devices. giffgaff also sells refurbished handsets, so phone and SIM can be sorted in one transaction.
Where giffgaff stands out is simplicity. There is no shop, no account manager, no upsell call. Everything is managed online. Plans can be paused between renewals without losing the SIM — useful if you travel back home for a period and do not want to pay for a month you will not use. For new arrivals who want the cheapest reliable SIM with minimum friction, giffgaff is the strongest starting point in 2026.
Get a giffgaff SIM →Lebara is the cheapest UK SIM for new arrivals who regularly call home. At £5 per month it is the lowest entry point of any provider in this guide — and every single plan includes free international minutes to over 41 countries: Nigeria, Romania, Italy, Poland, India, the US and more. EU and India roaming are included at no extra cost. 5G is included on all plans with no price uplift.
The international calling value is Lebara's defining advantage. Comparable international minutes from other UK providers typically cost £3–£8 as an add-on. With Lebara they are standard on every plan, making it effectively the cheapest option for anyone with regular international calling needs — even before the base plan cost is considered. No contract, no credit check, rolling 30-day plans.
Get a Lebara SIM →VOXI is Vodafone's SIM-only brand and the best cheap SIM if social media and messaging are your heaviest data uses. Every VOXI plan includes endless data on Instagram, TikTok, WhatsApp, Facebook and Snapchat — that usage does not come out of your main data allowance at all. Higher-tier plans extend this to endless streaming on YouTube and Netflix. No contract, no credit check, running on Vodafone's network.
VOXI is particularly popular among students and young new arrivals who use social media heavily. The endless social data feature means a relatively modest main data plan — say 10 or 15GB — goes much further than the headline figure suggests, because the apps most people actually use most do not draw from it. For regular social media and messaging users, VOXI typically offers better real-world value per pound than a larger but simpler data plan.
Get a VOXI SIM →1pMobile operates on the EE network — the UK's widest by coverage — and bills genuinely per use: per MB of data, per minute of calls, per text. If you do not use it, you do not pay for it. There is no fixed monthly charge and no bundle that goes to waste. For a new arrival in their first weeks who is not yet sure how much data they need, or who uses their phone lightly and mainly on Wi-Fi, this is the most cost-efficient model available.
The EE network backing is significant. EE consistently ranks first in UK coverage reports, particularly in rural areas, and its 5G footprint is the widest of any UK network. Getting EE-grade coverage on a pay-per-use basis with no contract is genuinely unusual — most EE-based plans are higher-priced monthly bundles. 1pMobile is one of the few low-cost MVNOs that gives you EE coverage with full flexibility.
Get a 1pMobile SIM →Sim Local sits at the intersection of convenience and value. It operates physical kiosks in the arrivals halls of Heathrow, Gatwick and Manchester airports — if you land without a working SIM and need one immediately, Sim Local is the most accessible option in the building. It also sells eSIMs online that can be activated before your flight departs, giving you a live connection from the moment you land.
A practical note: online pricing is meaningfully cheaper than airport kiosk pricing. If you know you are going to use Sim Local, purchasing the eSIM online before you travel is always better value. The airport kiosk exists for the cases where you did not plan ahead — it is a convenience premium, not the default recommendation.
Visit Sim Local →Carphone Warehouse is not a network — it is a retailer that stocks SIMs and phones across all four major UK networks (O2, EE, Vodafone and Three) alongside its own comparison tools. For new arrivals who want to walk into a store, compare options across networks side by side, and walk out with a working SIM and potentially a handset, Carphone Warehouse is the most practical physical destination in the UK. Stores are found in most city centres and major shopping centres.
The Pay As You Go section is the most relevant for new arrivals — SIMs across all networks available without a contract or credit check. If you need a refurbished or new handset as well, Carphone Warehouse can bundle both, which simplifies the process considerably when you are new to the country and still finding your feet.
Visit Carphone Warehouse →Some links above are affiliate links. We may earn a commission if you purchase through them — at no extra cost to you. Recommendations are made independently.
Side-by-side comparison
The table below summarises the key differences between the six providers. Prices are indicative as of April 2026 — check each provider's website for current offers before purchasing.
| Provider | From | Network | No credit check | Best for |
|---|---|---|---|---|
| giffgaff | £6/month | O2 | Yes | All-round cheap SIM, simple setup |
| Lebara | £5/month | Vodafone | Yes | International calls, EU & India roaming |
| VOXI | ~£10/month | Vodafone | Yes | Unlimited social data, students |
| 1pMobile | Pay per use | EE | Yes | Light users, best UK coverage |
| Sim Local | Varies | Multiple | Yes | Airport arrival, eSIM pre-activation |
| Carphone Warehouse | Varies by network | All four | Yes (PAYG) | In-store, all networks, handsets |
How to choose the cheapest SIM for your situation
The cheapest SIM in absolute terms is not always the cheapest in practice. Here is how to match the right provider to your actual usage pattern.
If you call home regularly
Lebara is the clear answer. International minutes to 41+ countries — including most of the destinations where people moving to the UK come from — are included on every plan from £5 per month. The difference in cost between Lebara with inclusive international minutes and any other cheap SIM with international calls charged at standard rate is typically £5–£15 per month, depending on call frequency. If you make more than a few international calls per month, Lebara is almost certainly the cheapest option once total costs are calculated.
If you use a lot of social media and streaming
VOXI's endless social data feature changes the value calculation considerably. If your heaviest data uses are Instagram, TikTok, WhatsApp, YouTube and Netflix — which is true of most people under 35 — a VOXI plan with a moderate main data allowance will go further than a larger plan on another network where everything draws from the same pot. A 10GB VOXI plan effectively functions like a much larger plan for most people's actual usage patterns.
If you use your phone lightly
1pMobile's genuine pay-per-use model is the only one that does not waste your money on unused allowance. If you use mostly Wi-Fi and only need mobile data occasionally — for maps, occasional browsing, and calls — paying per MB and per minute with no monthly minimum means you pay exactly what you consume. On light usage, this routinely works out cheaper than any fixed monthly plan.
If you need a SIM on arrival day
Either order a giffgaff SIM to your home address before you travel (free, delivered internationally), or activate a Sim Local eSIM before your flight if your phone supports eSIM. Both options mean you step off the plane in the UK with a working connection. Sim Local's airport kiosks are the fallback if you arrive without either — you will pay a small convenience premium over online pricing, but you will be connected within minutes of clearing customs.
Beyond the providers in this guide, SIM cards from the major networks are also available in Tesco, Sainsbury's, WHSmith and most convenience stores — often at the same price as ordering online. Avoid airport vending machines if possible; they carry a markup of 20–40% over the same SIM bought in a supermarket ten minutes' drive away.
Getting a contract SIM once your credit history develops
The plans in this guide are all no-contract options — appropriate for new arrivals who do not yet have a UK credit history. Fixed-term contracts (12 or 24 months) are not accessible in your first months in the UK, and there is no advantage to forcing the issue. The rolling monthly plans available from day one are genuinely good products, not inferior stopgaps.
Once you have been in the UK for six to twelve months, have opened a UK bank account, and are registered at a UK address, your credit profile will begin to build. At that point, fixed-term contract plans become accessible and typically offer better per-month value — often including a subsidised or financed handset if you want one. Carphone Warehouse and Mobiles.co.uk are the most useful comparison tools at that stage, as both aggregate deals across all four networks.
The progression for most new arrivals is: start with a PAYG or rolling monthly plan from giffgaff, Lebara, VOXI or 1pMobile depending on your usage pattern; build credit over six to twelve months; review and switch to a contract when you qualify. There is no rush. The providers in this guide are not a compromise — they are the right tools for the stage of your UK life you are currently in. Our full UK SIM cards directory covers the complete range of options including eSIMs, refurbished handsets and airport purchase.
Frequently asked questions
The cheapest SIM card deals in the UK in 2026 start from around £5 per month. Lebara offers a 30-day rolling plan from £5 including unlimited UK calls, texts, and data with international minutes to over 41 countries. 1pMobile offers genuine pay-per-use billing where unused data is not wasted. giffgaff goodybags start from £6 and include data, calls and texts with no contract.
All Pay As You Go and rolling monthly SIM cards in the UK require no credit check. giffgaff, Lebara, VOXI, 1pMobile and Sim Local all offer plans with no credit check and no fixed-term contract. This makes them the standard starting point for new arrivals who have not yet built a UK credit history.
VOXI offers unlimited data plans from around £10 per month on a no-contract basis, running on the Vodafone network. All VOXI plans include endless social media data — Instagram, TikTok, WhatsApp, Snapchat — that does not count against the main allowance. Lebara and 1pMobile also offer unlimited data options at competitive prices.
Lebara is the cheapest mainstream UK SIM for international calls. Every Lebara plan includes free minutes to over 41 countries — including Nigeria, Romania, Italy, Poland, India and the US — and free EU and India roaming is included at no extra cost. Plans start from £5 per month with no contract.
Yes. giffgaff will post a free SIM card to an overseas address before you move. Sim Local sells eSIMs online that can be activated before you travel, as well as physical SIMs at airport kiosks on arrival. Once in the UK, SIM cards are also available in supermarkets such as Tesco and Sainsbury's, often at lower prices than airport kiosks.
Yes. The cheapest UK SIM cards run on the same four major networks as premium providers. giffgaff and Sim Local run on O2, VOXI and Lebara run on Vodafone, 1pMobile runs on EE. The signal quality is identical to the host network — you are paying less for the plan structure, not for inferior coverage.
1pMobile is a UK MVNO running on the EE network — the UK's largest by coverage. It offers genuine pay-as-you-use billing: you pay only for the data, calls and texts you actually consume, with unused allowance not wasted. This makes it one of the most cost-efficient options for light users or new arrivals who are not yet sure how much data they need. Plans start from 1p per MB of data.
To keep your existing UK number when switching, request a PAC code from your current provider by texting PAC to 65075. Your new provider uses this code to port your number across, which typically completes within one working day. On Pay As You Go and rolling monthly plans there is no notice period and no early exit fee — you can switch at any time.
For the best rural and nationwide coverage, choose a provider on the EE network — 1pMobile runs on EE, which consistently ranks first in UK coverage reports. For urban use, all four major networks provide strong coverage and the difference is minimal in cities. giffgaff on O2 and VOXI and Lebara on Vodafone are all reliable choices for most UK locations.
Rolling monthly plans renew automatically unless you cancel — check each provider's renewal policy. Roaming outside the EU is charged extra on most cheap plans; Lebara includes EU and India roaming free, but other destinations carry additional charges on all providers listed here. International calls to countries not included in a plan's allowance are also charged at standard rates, so verify the destination list before choosing.
Plan pricing, availability and features are subject to change. Always verify on the provider's website before purchasing. Some links in this article are affiliate links — we may earn a commission if you click through and make a purchase, at no extra cost to you. This does not influence which providers are featured.
Living in the UK — weekly guide
Practical tips for everyday life in the UK, delivered free every week.
UK expat news & updates
Immigration changes, cost of living, and everyday life in the UK — updated regularly.