How does KAYAK find such low prices on flights from Southeast Asia to London Heathrow Airport?

KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Southeast Asia to London Heathrow Airport.

How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Southeast Asia to London Heathrow Airport?

KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from Southeast Asia is likely to change within 7 days, so travellers know whether to wait or book now.

What is the Hacker Fare option on flights from Southeast Asia to London Heathrow Airport?

Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London Heathrow Airport with an airline and back to Southeast Asia with another airline.

What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Southeast Asia to London Heathrow Airport?

Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London Heathrow Airport from Southeast Asia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

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Useful Info

Low season	February
High season	December

Best time to beat the crowds (9% less expensive on average)

Most popular time to fly and prices are also 1% lower on average.

How does KAYAK find such low prices on flights from Southeast Asia to London Heathrow Airport?
KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Southeast Asia to London Heathrow Airport.
How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Southeast Asia to London Heathrow Airport?
KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from Southeast Asia is likely to change within 7 days, so travellers know whether to wait or book now.
What is the Hacker Fare option on flights from Southeast Asia to London Heathrow Airport?
Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London Heathrow Airport with an airline and back to Southeast Asia with another airline.
What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Southeast Asia to London Heathrow Airport?
Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London Heathrow Airport from Southeast Asia up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

7.9

Thai AirwaysOverall score based on 430 reviews

7.5Food

7.7Comfort

8.0Boarding

7.0Entertainment

8.5Crew

Airline reviews

Gate and boarding processes were handled smoothly and efficiently. Both (connecting) flights departed and arrived on time. The cabin crew seemed anxious and a bit stressed/rushed. Food service was OK, but the hot food dishes were poor quality.

8.0 ExcellentPeter, May 2026