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A bridge over the Mekong at Pakse, Laos, under a blue sky

Laos → Thailand · Verified 14 October 2026

Laos–Thailand by Bus, Train or Boat: All 5 Friendship Bridges

Six crossings link Laos and Thailand: five Mekong Friendship Bridges, the newest opened in December 2025 between Pakxan and Bueng Kan, and the Vang Tao–Chong Mek land border near Pakse.

  • Mostly 06:00–22:00
  • Lao VOA approx US$40
  • New rules 15 Sep 2026

Which crossing should I use?

Use the crossing nearest your Lao town: Vientiane to Nong Khai (1st bridge), Savannakhet to Mukdahan (2nd), Thakhek to Nakhon Phanom (3rd), Huay Xai to Chiang Khong (4th), Pakxan to Bueng Kan (5th, opened 27 December 2025), or the Vang Tao–Chong Mek land border near Pakse. On bridges 1 to 4 you cross by paid shuttle, not on foot. The Lao visa on arrival is about US$40 in cash.

Every crossing, at a glance

Laos–Thailand international checkpoints, from the Lao Department of Immigration register.
CrossingConnectsHoursLao visa on arrival
1st Thai–Lao Friendship Bridge
Also written Mittaphab Bridge, Nong Khai Bridge
Vientiane Capital → Nong Khai, Thailand 06:00–22:00 Yes
2nd Thai–Lao Friendship Bridge
Also written Savannakhet–Mukdahan Bridge
Savannakhet → Mukdahan, Thailand 06:00–22:00 Yes
3rd Thai–Lao Friendship Bridge
Also written Thakhek–Nakhon Phanom Bridge
Thakhek, Khammouane → Nakhon Phanom, Thailand 06:00–22:00 Yes
4th Thai–Lao Friendship Bridge
Also written Huay Xai–Chiang Khong Bridge
Huay Xai, Bokeo → Chiang Khong, Thailand 06:00–22:00 Yes
5th Thai–Lao Friendship Bridge
Also written Paksan–Bueng Kan Bridge, Pakxan–Bueng Kan Bridge
Ban Kluai Udom, Pakxan district, Bolikhamxay → Ban Don Yom, Khai Si subdistrict, Mueang Bueng Kan, Thailand 06:00–22:00 No
Vang Tao – Chong Mek
Also written Chong Mek
Champasak → Chong Mek, Ubon Ratchathani, Thailand 06:00–20:00 Yes

Each bridge, town to town

Which town sits on each side, and whether the bridge is a mandatory paid shuttle. Vang Tao is a land border with no bridge, so the table above covers it.

1st Thai–Lao Friendship Bridge

Vientiane 1st Friendship Bridge 06:00–22:00 Nong Khai

2nd Thai–Lao Friendship Bridge

Savannakhet 2nd Friendship Bridge 06:00–22:00 Mukdahan

3rd Thai–Lao Friendship Bridge

Thakhek 3rd Friendship Bridge 06:00–22:00 Nakhon Phanom

4th Thai–Lao Friendship Bridge

Huay Xai 4th Friendship Bridge 06:00–22:00 Chiang Khong

5th Thai–Lao Friendship Bridge

Ban Kluai Udom 5th Friendship Bridge 06:00–22:00 Ban Don Yom

The 15 September 2026 visa change

If you do visa runs, this changes your year

How long you can stay

  • 30 days visa-free for 60 nationalities since 15 September 2026. It replaced the 60-day exemption, which covered 93.
  • Seychelles and Mauritius get 15 days. Azerbaijan, Belarus and Serbia move to visa on arrival.
  • One 30-day extension at any immigration office: form TM.7, 1,900 baht, before your stamp runs out. The officer decides.
  • Entered on or before 14 September with a 60-day stamp? You keep the full 60 days.

Crossing by land

  • Two visa-free land entries per calendar year. Malaysia, Brunei, Indonesia and Singapore are exempt.
  • Lao nationals and foreigners living in Laos with a valid Lao work permit, stay permit or diplomatic ID are outside the cap (Royal Thai Embassy, Vientiane, 30 September 2026). Thai immigration still decides at the border.
  • The Royal Gazette and the Tourism Authority of Thailand apply the cap to land entries only. The Thai embassy in London leaves that out, so don't count on unlimited entries by air.

Before you fly in

  • Airlines check for an onward ticket within 30 days and can refuse boarding without one. Some accept a bus or train ticket to Laos, others want a flight (traveller reports, October 2026).

The land cap is what matters here. Vientiane to Nong Khai is one of the region's busiest visa-run crossings, and a hop over the bridge now works only twice a year. If your plan relied on repeat land entries, get a proper visa. Every confirmed change at this border is in the dated transport updates log.

The fifth bridge: Pakxan to Bueng Kan

Open to the public since 27 December 2025, it links Lao Route 13 directly to Thai Highway 244. It is 1,350 m long and 17.4 m wide, with two traffic lanes and a central median. The crossing runs 06:00–22:00.

There is no bridge toll during the initial phase while both countries finalise the arrangements. Thailand's Cabinet approved vehicle tolls of 50 to 500 baht in principle on 18 August 2026; they still need legal review and have no start date, and the scheduled cross-border bus will be exempt.

More bridges are planned but years off: a Mekong bridge at Luang Prabang (funded in September 2026, due around 2031), a sixth bridge between Salavan and Ubon Ratchathani, and one linking Vientiane Province with Loei. None changes how you cross today.

The cross-border bus, since 8 January 2026

  • 100 baht flat fare, operated jointly by Thailand's Transport Co. Ltd (BorKorSor) and SPS Company of Lao PDR.
  • Departures at 08:00, 10:30, 13:00 and 15:30, the same times in both directions.
  • About three hours including border formalities.
  • Air-conditioned second-class coaches, 42 seats. Bueng Kan Provincial Bus Terminal: 042-490-690.
  • Not sold online yet. Buy at the terminal.
Friendship Bridge over the Mekong at dusk, seen from the Lao bank
A Thai-Lao Friendship Bridge at dusk, with a gilded Lao boundary marker in the foreground.

Laos to Thailand, and Thailand to Laos

The bridges, the buses and the opening hours are the same in both directions. Your visa is not, so this is the part worth reading twice.

Entering Thailand from Laos

  • 30 days visa-free for most nationalities, no fee. Land entries are capped at twice a calendar year: see the 2026 change.
  • TDAC first: free and compulsory, online or in the THIM app, in the 3 days before you arrive.
  • Officers can ask for proof of accommodation, an onward ticket within 30 days and, at their discretion, 20,000 baht per person in cash.

Entering Laos from Thailand

  • Visa on arrival at every Friendship Bridge: about US$40, or 1,500 to 1,800 baht at the booth's own rate. Add US$1 at weekends and outside office hours.
  • Bring one passport photo and clean, recent US notes. Worn or old bills get refused, and then you pay in baht at the counter's rate.
  • The Lao eVisa works reliably here, at bridges 1, 2 and 4, unlike most land borders. From Vietnam or Cambodia, bring cash for visa on arrival. The Laos visa guide lists what each crossing accepts.

Crossing the 1st Friendship Bridge independently

For Vientiane to Nong Khai you do not need a through-ticket. City bus 14 runs from central Vientiane to the Lao side of the bridge. After Lao immigration, take the mandatory bridge shuttle across to Thai immigration: it was 35 baht in late 2025.

Doing it yourself can be the safer choice for onward connections: recent guidance notes that some international buses wait only around 30 minutes for passengers to clear immigration before driving on.

For the Thai side of this crossing, including the train between Nong Khai, Vientiane (Khamsavath) and Bangkok, see Thailand Transport Hub's Thailand–Laos border guide.

Sleeper coaches lined up for night departures at a Vientiane bus terminal
The Vientiane to Nong Khai and Udon Thani runs leave all day. The long-haul Bangkok coaches are overnight, and the bridge shuttle is a separate 15-minute hop.

Northern Thailand to Luang Prabang: bus, boat or plane

There are three ways from Chiang Mai or Chiang Rai to Luang Prabang. The bus takes about 20 hours from Chiang Mai and about 16 from Chiang Rai, over the 4th Thai–Lao Friendship Bridge between Chiang Khong and Huay Xai, where the Lao eVisa is reliably accepted. The slow boat takes two days down the Mekong from Huay Xai, with a compulsory night in Pakbeng. A flight takes about an hour, on a thin, seasonal schedule.

Timetables, fares, the boat pier and which one to pick are in Chiang Mai to Luang Prabang by bus, slow boat or flight.

Book Luang Prabang to Chiang Mai

Limestone karst islands rising from turquoise water in southern Thailand
Karst islands off southern Thailand: where many trips across the Friendship Bridges are heading.

Routes across this border

VientianeBangkok

Direct service
Sold as
train, bus, van, flight, taxi
Duration
20–24 hrs
Border crossing
1st Thai–Lao Friendship Bridge

The long-haul option on this border, usually run as an overnight sleeper. Many travellers cover the same ground more cheaply by crossing at Nong Khai and continuing separately on a Thai bus or train.

Full route guide

VientianeNong Khai

Direct service
Sold as
bus, van, train, taxi
Duration
1–1.5 hrs
Border crossing
1st Thai–Lao Friendship Bridge

The busiest hop on this border, and the easiest place to change onto Thailand's onward network, including the overnight sleeper train to Bangkok.

VientianeUdon Thani

Direct service
Sold as
bus, van, train, flight, taxi
Duration
approx 3 hrs
Border crossing
1st Thai–Lao Friendship Bridge

Thailand's Transport Co. (BKS) launched a direct Route No. 2 service on 9 September 2026: an 80-baht, 40-seat second-class coach that calls at Udon Thani International Airport before continuing to Vientiane, one round trip a day. Departs Udon Thani Bus Terminal 1 at 09:00, the airport at 09:30, arriving Vientiane 12:00; returns from Vientiane at 14:00, the airport at 16:30, Udon Thani at 17:00. Not sold online yet; buy at the terminal.

VientianeKhon Kaen

Direct service
Sold as
train, bus, flight, taxi
Duration
approx 5 hrs
Border crossing
1st Thai–Lao Friendship Bridge

Passes through Nong Khai on the way to northeastern Thailand's largest city, a common changeover point for onward Isaan destinations.

Luang PrabangChiang Mai

Direct service
Sold as
bus, van, flight, taxi
Duration
approx 20 hrs
Border crossing
4th Thai–Lao Friendship Bridge

The long way round by road. Many travellers do only one leg this way and take the Mekong slow boat for the other, rather than the same road twice.

Full route guide

Huay XaiChiang Rai

Direct service
Sold as
van, bus, taxi
Duration
approx 3 hrs
Border crossing
4th Thai–Lao Friendship Bridge

The short final hop for travellers who took the two-day Mekong slow boat down from Luang Prabang.

Full route guide

Chiang KhongHuay Xai

Not bookable online
Duration
about 5 minutes across the bridge itself
Border crossing
4th Thai–Lao Friendship Bridge

The bridge shuttle isn't sold online, buy the ticket at the counter after Thai immigration, about 20 baht. Book the onward leg from Huay Xai instead, to Chiang Rai or on to Luang Prabang.

Full route guide

PakseUbon Ratchathani

Direct service
Sold as
bus, taxi
Duration
approx 3 hrs
Border crossing
Vang Tao – Chong Mek

The only Laos–Thailand crossing on this list that is a plain land border rather than a river bridge.

SavannakhetMukdahan

Not bookable online
Duration
approx 1 hr
Border crossing
2nd Thai–Lao Friendship Bridge

Not sold online at the moment: no bookable seats on any of seven dates checked between 23 September and 4 November 2026, in either direction. The international bus between Savannakhet and Mukdahan still appears on the operator timetable, with departures from 08:15, so buy the ticket locally rather than online.

ThakhekNakhon Phanom

Direct service
Sold as
bus, taxi
Duration
approx 1 hr
Border crossing
3rd Thai–Lao Friendship Bridge

The crossing where the Thakhek Loop motorbike route begins on the Lao side.

PaksanBueng Kan

Not bookable online
Duration
approx 3 hrs
Border crossing
5th Thai–Lao Friendship Bridge

Served by the cross-border bus that launched on 8 January 2026, 100 baht flat, four departures a day each way. Not sold online yet; buy at Bueng Kan Provincial Bus Terminal or in Pakxan.

Common questions

Can I walk across a Friendship Bridge?
Not on bridges 1 to 4. Walking and cycling are banned and you take the paid shuttle between the immigration posts. At the fifth bridge, take the 100-baht cross-border bus.
What is the "overtime fee" at the bridge?
The bridge runs 06:00–22:00 but immigration often stops issuing new visas by mid-afternoon. Cross after the cutoff and you may be charged a small unofficial fee.
How much is the Lao visa on arrival at the Thai border?
About US$40, or roughly 1,500 THB in baht. Add US$1 at weekends. Bring cash and a passport photo.
How do I get from Vientiane to Bangkok?
Via the 1st Friendship Bridge to Nong Khai, then an onward bus or Thailand's overnight sleeper train to Bangkok. Crossing and continuing separately usually beats a direct VIP coach on price. A direct overnight train (133/134) also links Vientiane's Khamsavath station with Bangkok Krung Thep Aphiwat.
How do I get from Bangkok to Vientiane?
Same crossing, reverse direction: sleeper train or bus to Nong Khai, then the 1st Friendship Bridge. A direct coach also runs, 20 to 24 hours.
Is there a bus from Udon Thani Airport to Vientiane?
Yes, since 9 September 2026: Transport Co. (BKS) Route No. 2, once daily each way, 80 baht, via Udon Thani Airport. Departs Udon Thani 09:00, Vientiane 12:00; returns 14:00.
What is the new fifth bridge, and can I use it?
Yes: it links Pakxan to Bueng Kan, opened on 27 December 2025, and a 100-baht cross-border bus runs four times a day each way, about three hours. No toll yet; vehicle tolls are approved in principle only.
Which crossing serves Pakse and southern Laos?
Vang Tao–Chong Mek, into Ubon Ratchathani. The only major crossing that is a straight land border with no bridge.
Do I need a visa to enter Thailand from Laos?
Since 15 September 2026, 60 nationalities get 30 days visa-exempt, and land-border entries are capped at twice per calendar year. Official Thai sources apply the cap to land entries; one embassy words it more broadly, so do not count on unlimited air entries either.
Do I need the TDAC at a land border?
Yes, the same as flying in. File it free at tdac.immigration.go.th or in the THIM app in the 3 days before arrival, children included.
How early should I arrive before the bridge closes?
The bridge runs until 22:00, but immigration commonly stops issuing new visas by mid-afternoon. Aim to arrive well before that if you need visa on arrival.
Do I need Laos's online arrival form at the Friendship Bridge?
At the 1st Friendship Bridge, yes: free at immigration.gov.la, up to three days before you cross. Paper cards are the fallback.

Laos Bus Tickets

Written and maintained from Vientiane. The people behind this site have lived in Laos for two decades and cross these borders themselves. Routes and visa rules get rechecked whenever something changes, not on a fixed schedule that lets stale information sit for months.

Sources for this page

  1. Royal Thai Embassy, Vientiane: land border announcement: who is outside the twice-a-year land-border cap
  2. Lao Department of Immigration: digital arrival and departure form: where the Lao Digital Immigration Form is required
  3. Lao Department of Immigration: checkpoint list, opening hours and visa status
  4. Tourism Authority of Thailand: the visa exemption change in force since 15 September 2026
  5. Royal Thai Embassy, Washington D.C.: the 30-day exemption, the extension and officer discretion
  6. Royal Thai Embassy, London: entry requirements under the visa exemption
  7. Thailand Immigration Bureau: Digital Arrival Card: the TDAC requirement, the 3-day filing window and the fact that it is free
  8. Nakhon Phanom Immigration: the THIM app: the THIM app, which files the TDAC by passport scan
  9. Thailand Immigration Bureau: Thai entry requirements
  10. Lao News Agency (KPL): the fifth Friendship Bridge opening
  11. Nation Thailand: fifth bridge toll plan: the approved-in-principle vehicle tolls and the bus exemption
  12. Southeast Asia Infra: the Udon Thani to Vientiane bus service launch
  13. Nation Thailand: how BKS sells the Udon Thani airport bus
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