This page has been reviewed and verified by Michael Gibbons, UK Solicitor and Regulated Immigration Advisor, to ensure accuracy under current UK immigration policy. Confirm your visa requirements via Our UK Visa Guidance.
Focus phrase: Do I need a visa to transit through the UK.
If you are travelling through the United Kingdom to reach another destination, you may need a UK Transit Visa depending on your nationality, travel route, and the length of your layover. This guide explains when a visa is required, which visa type to apply for, and the exemptions that may apply under current UK immigration policy (October 2025).
When You Need a UK Transit Visa
You may require a UK Transit Visa if you are:
- Travelling through a UK airport on your way to another country, and
- A citizen of a country that requires a visa to enter the UK (even if you do not plan to leave the airport).
However, travellers from European Union (EU) and European Economic Area (EEA) countries, as well as some Commonwealth nations, can often transit through the UK without a visa. For others, the need depends on whether they will pass through immigration control or remain airside.
Types of UK Transit Visas
There are two main categories of UK Transit Visas under Home Office guidance:
- Direct Airside Transit Visa (DATV): For travellers who remain in the international transit area and do not pass through UK Border Control.
- Visitor in Transit Visa: For travellers who need to pass through immigration control or change airports before continuing their journey.
If your layover exceeds 48 hours or you plan to frequently transit the UK, you may need to apply for a UK Standard Visitor Visa instead.
UK Visa Conditions for Transit
Your visa requirement depends on your nationality and travel plans. You do not need a visa if:
- You are a citizen of an EU or EEA member state.
- You hold a valid visa for the USA, Canada, Australia, or New Zealand, and your onward journey is to or from one of those countries.
- You have a valid residence permit issued by an EU or EEA country.
If you do not meet any of these conditions, you may need a DATV or Visitor in Transit Visa. Always check the latest rules on the UK Government website or use the UK Transit Visa Eligibility Checker before travelling.
How to Apply for a UK Transit Visa
Applications are made online through the official UK Government portal. You will also need to book a biometric appointment at one of the UK Visa Application Processing Centres.
When applying, prepare the following documents:
- Valid passport or travel document
- Flight confirmation showing onward travel
- Visa or residence permit for your final destination (if applicable)
- Proof of sufficient funds for your stay
Processing typically takes around three weeks, though the UK Visa Priority Service can reduce this to five working days.
Common Exemptions: Common Travel Area (CTA)
Under the Common Travel Area (CTA) agreement, citizens of the Republic of Ireland and certain British Overseas Territories are exempt from UK transit visa requirements. The CTA allows unrestricted movement between the UK, Ireland, the Channel Islands, and the Isle of Man.
Transit Through the UK Without a Visa
Nationals of visa-required countries may still transit the UK visa-free if they meet certain conditions, such as:
- They will not leave the airport or pass through immigration control.
- Their connection time is under 24 hours.
- They hold a valid visa for their destination country.
This is known as Airside Transit Exemption. If any of these criteria are not met, you must obtain a UK Transit Visa.
What If You Need to Stay Longer?
If your layover or travel arrangements require you to stay in the UK for more than 48 hours, you will need to apply for a Standard Visitor Visa. This visa allows short-term stays of up to six months and covers business, tourism, and transit-related visits.
Frequently Asked Questions
Do I need a visa if my layover is under 24 hours?
If you remain airside and meet exemption criteria, you may not need a visa. Always confirm your eligibility before travelling.
Can I apply for a UK transit visa on arrival?
No. All transit visa applications must be completed and approved before you arrive in the UK.
How long can I stay in the UK on a transit visa?
A Direct Airside Transit Visa is valid for up to 24 hours, while a Visitor in Transit Visa allows stays of up to 48 hours.
Are there exemptions for Irish citizens?
Yes. Irish citizens and residents covered under the Common Travel Area do not require a transit visa to pass through the UK.
Related Guidance
- Do I Need a Transit Visa for a UK Connecting Flight?
- Do I Need a UK Transit Visa If I Live in Europe?
- Can I Transit the UK Without a Transit Visa?
About This Page
Author: UK Visa Applications Editorial Team
Reviewed by: Michael Gibbons, UK Solicitor and Regulated Immigration Advisor
Last Updated: October 2025
Did this advice help?
Is there anything wrong with this page?
If so let us know!