Last Updated: September 2026
Connecting through Heathrow, or through Manchester Terminal 2, on a single ticket with your bags checked through? You don’t currently need a UK ETA, because you never go through UK passport control. Almost every other UK connection does take you through passport control, and that needs an ETA: separate tickets, a connection at Gatwick or Edinburgh, a change of airport, or a connecting flight within the UK.
This guide focuses on UK ETA requirements for transit and layover travelers. For the general overview, see our complete UK ETA guide.
⚡ UK ETA for Transit: Quick Facts
| Heathrow, single ticket, international onward flight? | No ETA currently required — you stay airside |
| Manchester, single ticket? | Only within Terminal 2, on participating airlines. Terminal 2 to 3 goes through UK Border |
| Gatwick, Edinburgh or another UK airport? | ETA required — international arrivals go through passport control |
| Going through passport control? | ETA required |
| Separate tickets (re-checking bags)? | Almost always ETA required |
| Changing London airports? | ETA required |
| Is the exemption permanent? | No guarantee — the Home Office describes it as the current position |
| When in doubt? | Apply for the ETA — £20, valid 2 years |
| Direct Airside Transit Visa (DATV)? | Separate requirement for some visa nationals — see below |
What the Home Office Says About Transit
The Home Office’s April 2026 ETA factsheet sets out two rules. Eligible visitors who take connecting flights and go through UK passport control need an ETA. Those transiting through Heathrow and Manchester airports who don’t go through passport control don’t currently need one.
Two things follow from that wording. First, the exemption names two airports, not every UK airport. Second, “currently” means it’s the present position, not a permanent rule. If you’ll be connecting through the UK again in the next two years, that’s worth weighing.
Airside vs Landside: The Core Distinction
Airside transit means you stay in the international transit area throughout your layover. You arrive on one flight, follow the “Flight Connections” signs, go through a security check, and board your next flight without passing UK passport control. Your bags are checked through to your final destination.
Landside transit means you pass through UK passport control at some point during your layover. That happens if you have to collect and re-check bags, if your onward flight is on a separate ticket, if you change airports, or if you leave the airport. Once you go through passport control, you’re entering the UK, even if only for a few hours, and you need an ETA.
When You Need a UK ETA for Transit
1. You have separate tickets. If your journey is booked as two separate tickets, for example New York to London on one airline and London to Berlin on another, your bags usually aren’t checked through. You’ll collect them, go through passport control, and check in again for the second flight. That requires an ETA.
2. You need to re-check bags. Even on a single booking, some connections require you to collect your bags and check them in again, for example between airlines without a baggage agreement.
3. You’re changing airports. Heathrow to Gatwick, Heathrow to Stansted and similar connections mean travelling across the UK by road or rail. You’ll go through passport control at the first airport.
4. You want to leave the airport. A quick trip into London, meeting someone, or staying at a hotel outside the transit area all mean entering the UK.
5. You’re connecting at an airport other than Heathrow or Manchester. Gatwick says all international-to-international connections go through UK border control, and Edinburgh says international arrivals go through passport control. See the airport-by-airport section below.
6. Your connecting flight is within the UK. Flying into Heathrow from abroad and connecting to Edinburgh, Manchester or Belfast means entering the UK: Heathrow routes you through UK immigration before security. That needs an ETA.
Which UK Airports Let You Stay Airside?
Only Heathrow and Manchester are named in the Home Office exemption, and they are the only UK airports we could find that offer international-to-international connections without passport control. Here’s what each airport says itself.
Heathrow. If your flights are on a single booking, follow the purple Flight Connections signs. You go through a security check but not passport control, including when you change terminals, which is done by free airside shuttle bus. Heathrow says most connecting passengers don’t collect their bags. Two exceptions: if you booked separate tickets, Heathrow says you go through immigration, collect your bags and check in again; and if you’re connecting to a flight within the UK or to Ireland, you go through UK immigration before security. Both need an ETA.
Manchester. Terminal 2 has two Flight Transfer Centres where you can connect without passing the UK Border, but only on a single ticket that includes the transfer, and only on airlines that take part in the airport’s transfer service, so check with yours. There are currently no direct transfer facilities between Terminal 2 and Terminal 3: passengers connecting between them go through the UK Border, collect their bags and check in again, which needs an ETA.
Gatwick. Gatwick says passengers arriving for an international-to-international connection must pass through UK border control. You need an ETA for any Gatwick connection.
Edinburgh. Edinburgh says passengers arriving on international flights go through immigration and passport control. You need an ETA.
Other UK airports. We couldn’t find any other UK airport that offers an airside international connection. Unless your airline confirms otherwise in writing, assume you’ll go through passport control and apply for an ETA.
🛂 Connection might take you landside?
Separate tickets, a bag re-check, a change of airport, or a connection outside Heathrow and Manchester all mean you need an ETA. iVisa checks your details before submission and handles the application for you, with customer support if something goes wrong. It charges a service fee on top of the government fee, and the Home Office decides on its usual timeline, so apply early.
Apply With iVisa →The Direct Airside Transit Visa (DATV): A Different Requirement
A separate UK rule requires some nationalities to hold a Direct Airside Transit Visa even for airside-only transit. It applies to certain nationals who need a visa to visit the UK, not to the visa-exempt nationalities who use the ETA (such as the US, Canada, Australia and EU countries).
If you need a visa to visit the UK, check whether you need a transit visa at GOV.UK/transit-visa before assuming an airside connection needs no documents.
Why It’s Often Worth Getting the ETA Anyway
A genuine airside connection at Heathrow or Manchester is the only situation where you currently don’t need an ETA. Consider:
- The ETA costs £20
- It’s valid for 2 years, or until your passport expires if that’s sooner
- It covers unlimited trips to the UK during that time
- It removes the airside/landside question entirely
- The Home Office says most app applicants get an automatic decision in minutes, but advises allowing 3 working days
It’s worth applying if you have:
- Separate tickets for any leg of your journey
- A tight connection where a missed bag transfer could force you landside
- Any uncertainty about whether you’ll go through passport control
- Plans to leave the airport during a long layover
- A chance of visiting or connecting through the UK again in the next 2 years
£20 for 2 years of unlimited UK trips is good value. The downside of getting an ETA you didn’t strictly need is £20. The downside of not having one when you need it is being refused boarding.
What Can Go Wrong Without an ETA on an Airside Connection
If your connection goes to plan and stays airside at Heathrow or Manchester, the exemption covers you. The risk is when plans change:
- Your bags don’t make the connection and you’re told to collect them
- Your onward flight is cancelled and you need a hotel outside the transit area
- Your connection is changed to another airport
Any of these can mean going through UK passport control, which is exactly the situation the ETA exists for. You can apply at that point, but decisions can take up to 3 working days. An ETA already in place removes the problem.
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Get Travel Insurance →Frequently Asked Questions
Do I need a UK ETA for a layover at Heathrow?
Not if your flights are on a single booking and your onward flight is international. Follow the purple Flight Connections signs and you stay airside, even when changing terminals. If you booked separate tickets, connect to a UK domestic flight, or leave the airport, you go through passport control and need an ETA.
Do I need a UK ETA to connect at Gatwick, Edinburgh or another UK airport?
Yes. Gatwick says passengers on international-to-international connections must pass through UK border control, and Edinburgh says international arrivals go through passport control. The Home Office airside exemption only covers Heathrow and Manchester.
What is airside transit?
Airside transit means staying in the international transit area throughout your layover. You arrive on one flight, follow the Flight Connections signs through a security check, and board your next flight without passing UK passport control.
What is landside transit?
Landside transit means going through UK passport control during your layover, for example to collect and re-check bags, catch a flight on a separate ticket, change airports or leave the airport. It requires a UK ETA.
Do I need a UK ETA if I’m on separate tickets?
Almost certainly. With separate tickets your bags usually aren’t checked through, so you collect them, go through passport control and check in again for your next flight. That requires an ETA.
What happens if my connecting flight is cancelled and I need a hotel?
Staying at a hotel outside the transit area means going through UK passport control, which requires an ETA. Decisions can take up to 3 working days, so if you’re connecting through the UK, having an ETA in place beforehand removes that risk.
Do I need an ETA to transfer between Heathrow and Gatwick?
Yes. Changing airports means leaving the first airport through passport control and travelling across the UK. An ETA is required.
Do I need a UK ETA to connect at Manchester?
Not if you connect within Terminal 2 through its Flight Transfer Centres, on a single ticket with an airline that takes part in the airport’s transfer service. Manchester currently has no direct transfer between Terminals 2 and 3, so that connection goes through the UK Border and needs an ETA, as do separate tickets.
Do I need a UK ETA if I’m connecting to a domestic UK flight?
Yes. Connecting from an international flight to a flight within the UK means entering the UK. At Heathrow, you go through UK immigration before security on that kind of connection.
Is the Direct Airside Transit Visa the same as a UK ETA?
No. The Direct Airside Transit Visa (DATV) is a separate requirement for certain nationals who need a visa to visit the UK, and it can apply even to airside transit. ETA-eligible nationalities, such as the US, Canada, Australia and EU countries, don’t need one.
Is the Heathrow and Manchester airside exemption permanent?
There’s no guarantee. The Home Office says those transiting airside through Heathrow and Manchester don’t “currently” need an ETA, so the position could change. Check GOV.UK before you travel.
If I’m not sure whether I need an ETA for transit, should I get one anyway?
Yes. £20 buys 2 years of unlimited UK trips and removes the uncertainty. Not having one when you need it can mean being refused boarding or stuck at a connection.
🌍 Planning a Multi-Country Trip?
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Use the Europe Travel Planner →Related Articles
- UK ETA: Complete Guide (All Nationalities) — the general UK ETA overview covering all 85 visa-exempt nationalities
- UK ETA Processing Time: What to Expect — how long approval takes so you can apply with enough buffer before your connection
- UK ETA Application Mistakes to Avoid — the errors that cause rejections, refusals and delays
- UK ETA Refused: What to Do Next — refused vs rejected, and why a refusal means applying for a visitor visa
- UK ETA for Americans: Complete Guide — US-specific rules including Heathrow transit and dual citizenship
- UK ETA for Canadians: Complete Guide — Canada-specific rules including NEXUS card and French application notes
- UK ETA for Australians: Complete Guide — Australia-specific rules including Working Holiday Scheme and dual citizenship
- Best Travel Insurance for Europe — trip disruption and medical coverage for delayed or diverted transits
Disclaimer: This guide is for informational purposes only and does not constitute legal or immigration advice. Transit rules can vary by airline and route — always confirm specific transit arrangements with your carrier. Verify current requirements at GOV.UK before traveling. Last updated: September 2026.
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