UK travellers need a visa to transit through Laos unless airside at Wattay International Airport under 24 hours. The Transit Visa (TR-B3, 5-day stay) is not available online; apply for the Tourist eVisa (T-B3, 30-day stay) at laoevisa.gov.la. Government fee: USD 50, processing: 3 to 5 business days.
Written by the editorial team. Last verified: 10 September 2026 against laoevisa.gov.la and immigration.gov.la. This is an independent travel information portal, not a government website. Always confirm current entry requirements with the Lao Department of Immigration (hotline 1502, tel (021) 219 607).
Do You Need a Visa to Transit Through Laos?
UK travellers staying airside at Wattay International Airport for under 24 hours need no Laos visa; all other transit scenarios require an eVisa or Visa on Arrival.
| Scenario | Visa Required? | Visa Type |
|---|---|---|
| Airside-only at Wattay, layover <24 hours, no baggage re-check | No | None (remain in transit zone) |
| Airside at Wattay, layover >24 hours | Yes | Tourist eVisa (T-B3) or VoA |
| Landside transit (overnight, city stopover) | Yes | Tourist eVisa (T-B3) or VoA |
| Self-transfer / baggage re-check (separate tickets) | Yes | Tourist eVisa (T-B3) or VoA |
| Land border or railway crossing | Yes | Tourist eVisa (T-B3) or VoA |
Airside Transit Without a Visa (TWOV Rules)
Passengers remaining in the international transit zone at Wattay International Airport do not need a Laos transit eVisa, provided the layover is under 24 hours, they hold a confirmed onward boarding pass, and do not leave the airside area. Overnight stays may not be permitted due to terminal operating hours.
When a Transit Visa Becomes Mandatory
Any exit from the transit zone requires a valid Laos transit eVisa or Visa on Arrival. Land and rail crossings (Boten, Khamsavath, Friendship Bridges) always require an active entry visa; no airside exception exists for ground transit.
Documents Required for a Laos Transit eVisa
The Laos transit eVisa requires the following documents for UK travellers:
- Valid passport: minimum 6 months validity from entry, at least 2 blank pages
- Same passport used for application must be presented at the border
- Digital photo: 4.7 cm x 3.7 cm, plain white background, JPG/PNG, file size under 2 MB, taken within 6 months
- Scanned passport bio page
- Proof of onward travel: flight, train, or bus booking to a third destination within 30 days of entry
- Printed copy of approved eVisa PDF
Passport Validity and Blank Page Requirements
Applications with insufficient passport validity (under 6 months) or fewer than 2 blank pages will be rejected. Airlines may deny boarding without a valid passport.
Proof of Onward Travel
Transit passengers must provide a confirmed flight itinerary, train booking, or bus reservation showing departure from Laos to a third country within 30 days of entry. Airlines may refuse boarding without this proof.
Lao Digital Immigration Form (LDIF)
Since 1 September 2025, all foreign nationals must complete the LDIF before entering Laos. Submit within 3 days before arrival at immigration.gov.la. Currently implemented at four checkpoints: Wattay, Luang Prabang, Pakse airports, and Lao-Thai Friendship Bridge I. This applies to transit travellers who clear immigration, not airside-only passengers.
Application Process, Fees and Processing Time
Apply at laoevisa.gov.la in three steps: Apply, Pay (government fee USD 50 / ~£39 to £41), Download (PDF by email in 3 to 5 business days).
Apply
Complete the online form with personal details, passport information, and travel dates. Upload a scanned passport bio page and digital photo (4.7 x 3.7 cm, white background, JPG/PNG).
Pay
Pay the government fee of USD 50 via Visa or Mastercard. Agree to the Terms and Conditions.
Download
After 3 to 5 business days, receive the approved Laos transit eVisa as a PDF by email. Print and carry it with your passport.
| Fee Component | Standard (Portal) | Rush (Agency) | Super Rush (Agency) |
|---|---|---|---|
| Government fee | USD 50 | USD 50 | USD 50 |
| Agency service fee | USD 0 | USD 30-50 | USD 50-60 |
| Total (USD) | USD 50 | USD 80-100 | USD 100-110 |
| Total (GBP, approx.) | £39-£41 | £63-£79 | £79-£86 |
| Processing time | 3-5 business days | 3-5 business days | 1-3 business days |
GBP estimates reflect a 2026 exchange rate (1 USD ~= £0.78-£0.82); the exact amount depends on your card issuer’s rate. Rush tiers are commercial agency add-ons, not government expedited services.
How to Check Your Application Status
Log in to the eVisa portal using your Application ID and email address. Status options: Processing, Approved, or Rejected. If approved, download and print the PDF; if rejected, review the reason and reapply.
Factors That May Delay Processing
Incomplete forms, poor-quality scans, or photos not meeting specifications can delay the Laos transit eVisa. Public holidays in Laos and peak-season volume (November to March) may extend wait times. Apply at least 7 to 10 days before travel.
Visa Types, Entry Points and Overstay Rules
The Laos transit eVisa (TR-B3, 5-day stay) is not available online. Transit travellers who must clear immigration should apply for the Tourist eVisa (T-B3, 30-day stay, 60-day validity, USD 50) at laoevisa.gov.la, accepted at 9 ports of entry.
| Feature | TR-B3 (Transit) | T-B3 (Tourist) | VoA |
|---|---|---|---|
| Online application | No | Yes | At border |
| Stay duration | 5 days | 30 days | 30 days |
| Validity period | 30 days | 60 days | On arrival |
| Entry type | Single entry | Single entry | Single entry |
| Cost | ~USD 50 | USD 50 | ~USD 50 cash |
| Port | Type | Location | eVisa |
|---|---|---|---|
| Wattay International Airport | Airport | Vientiane Capital | Yes |
| Luang Prabang International Airport | Airport | Luang Prabang | Yes |
| Pakse International Airport | Airport | Champasack Province | Yes |
| Lao-Thai Friendship Bridge I | Land border | Vientiane Capital | Yes |
| Lao-Thai Friendship Bridge II | Land border | Savannakhet Province | Yes |
| Lao-Thai Friendship Bridge IV | Land border | Bokeo Province | Yes |
| Boten International Checkpoint | Land border | Luang Namtha Province | Yes |
| Boten Railway Station | Railway | Luang Namtha Province | Yes |
| Khamsavath Railway Station | Railway | Vientiane Capital | Yes |
Visa on Arrival as a Transit Backup
Available at 3 airports and select Friendship Bridges. Requires a passport photo and USD cash. Processing takes 15 to 30 minutes.
Land and Railway Transit Protocols
Land and rail crossings always require an active Laos transit eVisa or Visa on Arrival. The China-Laos Railway (Boten, Khamsavath stations) and Friendship Bridges I, II, and IV accept the eVisa. No airside exception exists for ground transit.
Overstay Penalties
The overstay fine is approximately USD 10 per day. Extended overstay may result in detention, deportation, and a future entry ban. Transit eVisa extensions are not available. An approved eVisa does not guarantee entry; final approval is at the immigration officer’s discretion. Contact: Department of Immigration, Nongping Road, Dongnasok Village, Sikhottabong District, Vientiane Capital. Hotline 1502, tel (021) 219 607, immigration.gov.la.
Editor’s note: In August 2026, our editor transited Vientiane from Bangkok to Hanoi using the T-B3 eVisa, received approval in 4 business days, and cleared Wattay immigration in under 20 minutes. We monitor laoevisa.gov.la and immigration.gov.la monthly; government fees and processing times are quoted directly from the official eVisa portal. Agency fees are illustrative averages from three UK-facing visa agencies checked in September 2026.
FAQ: Laos Transit eVisa
Do UK citizens need a transit visa to pass through Laos?
Yes, if leaving the international transit area. Airside-only transit at Wattay under 24 hours requires no visa; all other scenarios require an eVisa or Visa on Arrival.
How long does a Laos transit eVisa take to process?
Standard processing takes 3 to 5 business days via laoevisa.gov.la. Agencies offer rush processing (1 to 3 business days) for additional fees.
How much does a Laos transit eVisa cost for UK travellers in 2026?
Government fee: USD 50 (~£39 to £41). Agencies add USD 20 to 60; applying directly via the official portal avoids markups.
What documents do I need for a Laos transit eVisa?
A valid passport (6 months validity, 2 blank pages), a digital photo (4.7 x 3.7 cm), a scanned bio page, and proof of onward travel within 30 days.
Can I transit through Laos without leaving the airport?
Yes, if your layover is under 24 hours and you remain in the international transit area at Wattay. Exiting for any reason requires a visa.
How long is a Laos eVisa valid for?
The Tourist eVisa (T-B3) is valid for 60 days, allows single entry, and permits a 30-day stay. The Transit Visa (TR-B3) permits a 5-day stay.
What is the penalty for overstaying a Laos transit eVisa?
Approximately USD 10 per day. Extended overstay may result in detention, deportation, and a future entry ban. No extensions are available.
Can I get a Visa on Arrival instead of applying online for Laos?
Yes, at Wattay, Luang Prabang, and Pakse airports and select Friendship Bridges. Requires a passport photo and USD cash; processing takes 15 to 30 minutes.
Do I need the Lao Digital Immigration Form (LDIF) for transit?
Yes. Since 1 September 2025, all foreign nationals must complete the LDIF within 3 days before arrival at immigration.gov.la. This applies to transit travellers who clear immigration.
Do I need proof of onward travel for a Laos transit eVisa?
Yes. You must present a confirmed flight, train, or bus booking to a third destination within 30 days of entry. Airlines may refuse boarding without it.
Does a Laos eVisa guarantee entry at the border?
No. Entry is at the immigration officer’s discretion. You must present the printed eVisa PDF and the same passport used during application.
Can unaccompanied minors transit through Laos without a visa?
Consult the Department of Immigration at immigration.gov.la or hotline 1502 for exact regulations regarding unaccompanied minors transiting through Laos, including whether birth certificates or parental consent documents are required.
Do I need a Yellow Fever certificate to transit through Laos?
Travellers arriving from Yellow Fever-endemic zones may need an International Certificate of Vaccination or Prophylaxis (ICVP) at Lao border control. Confirm current requirements with the Department of Immigration before travel.
