Chiang Mai to Vientiane is a popular route for travellers moving between northern Thailand and Laos. The overland bus via the Thai–Lao Friendship Bridge at Nong Khai is a classic backpacker journey of around 12–14 hours. The flight takes under 2 hours. Both are well-established routes.
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Option 1: Flight
Lao Airlines operates direct flights between Chiang Mai (CNX) and Vientiane (VTE). Flight time is around 1 hour 20 minutes. Fares vary but are generally more expensive than the bus — the overland route is actually quite pleasant and worth considering.
- Journey time: ~1 hour 20 minutes
- Price: from ~$80–160 USD one way
- Airlines: Lao Airlines
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Option 2: Bus via Nong Khai / Friendship Bridge
The overland route goes from Chiang Mai to Nong Khai (on the Thai side of the Mekong), across the 1st Thai–Lao Friendship Bridge into Laos, and on to Vientiane. You can take a bus or train from Chiang Mai to Nong Khai, then a tuk-tuk to the border and shuttle across the bridge.
Chiang Mai → Nong Khai
- By overnight bus: ~11–12 hours, ~350–500 THB
- By overnight train: ~12–13 hours via Bangkok or direct, from ~500 THB
Nong Khai → Vientiane (via Friendship Bridge)
- Tuk-tuk to border: ~30 THB
- Border shuttle bus: ~55 THB across the bridge
- Laos visa on arrival: Available at the bridge ($30–42 USD)
- Vientiane city from border: ~15 minutes by tuk-tuk
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Journey Summary
| Method | Time | Cost from | Best for |
|---|---|---|---|
| Flight | ~1.5 hours | $80 USD | Speed |
| Bus via Nong Khai | 13–15 hours | $15 USD | Budget / overland |
Frequently Asked Questions
What is the Friendship Bridge?
The 1st Thai–Lao Friendship Bridge spans the Mekong River between Nong Khai (Thailand) and Tha Na Leng (Laos), about 20km from Vientiane. It\\\’s one of the main border crossings between Thailand and Laos and is open daily. A shuttle bus runs across the bridge for a small fee.
Related Guides
- Hanoi to Vientiane: Bus and Flight Guide
- Vientiane to Luang Prabang: Train Guide
- Nong Khai to Vientiane: Friendship Bridge Guide
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