We've gone through lots of different flights, to help you find the cheapest way to get from London Heathrow to Kauai Island. You can choose from two airlines. At the moment, 08 / Sep / 2025 is the cheapest date to travel, but scroll through the results to find the option that works best for you.
The most popular airlines offering flights to Kauai Island are Virgin Atlantic & British Airways. Virgin Atlantic 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 Kauai Island will take at least 18 hrs 55 mins. On average, it takes 20 hrs 35 mins to fly the 11600 km distance. Take a look at flight times to see which one works best for you.
Searching by month, for instance, will show you the best time of the week to fly.
