Search for cheap flights and last-minute deals with Netflights. We've scanned all the flights from London Heathrow to Vientiane, across the 11 airlines that offer this route. We've found that 11 / Mar / 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 Thai Airways International, Emirates & Qatar Airways. Thai Airways International 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 19 hrs 10 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.
