Cheap flights from London Heathrow to Vientiane from £699

from as little as £699

14 nights in Vientiane, departing London Heathrow on 08 / Nov / 2025 with Vietnam Airlines (price found 34 hours ago)

Subject to availability, prices correct of the last 24 hours
Vientiane
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The London Heathrow / Vientiane route

All 9325 km of it

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Vientiane flight facts

What you need to know

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Vientiane

Today alone, Netflights has searched over 189 flights. 08 / Nov / 2025 is currently the lowest priced day of the year to fly the London Heathrow/Vientiane route. There are around 169 flights on any given week from the UK to Vientiane and the cheapest month to fly right now is November.

Not suitable? Try running another search or viewing all cheap flight deals.

Min / Max Temperature (°C)
LOWEST

17 °C

AVG

26 °C

HIGHEST

33 °C

Rainfall (mm)
LOWEST

10 mm

AVG

55 mm

HIGHEST

120 mm

Key facts about Vientiane

How to get cheap flights from London Heathrow to Vientiane

Tips and advice from our flight experts

Search for cheap flights and last-minute deals with Netflights. We've scanned all the flights from London Heathrow to Vientiane, across the six airlines that offer this route. We've found that 08 / Nov / 2025 is the cheapest date to travel at the moment, but it's best to go through the results to see which flight suits you.

The most popular airlines offering flights to Vientiane are Qatar Airways, Etihad Airways & Emirates. Qatar Airways is the most popular one, but that doesn’t mean their flights will be the cheapest. If you can't find a flight time that suits you, why not look at flying out from a different airport?

Your flight from London Heathrow to Vientiane will take at least 15 hrs 10 mins. On average, it takes 16 hrs 50 mins to fly the 9325 km distance. Take a look at flight times to see which one works best for you.

You can also search by month, which will reveal the cheapest time of the week to fly.

Other popular destinations near Vientiane

Where other people are flying to

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