Cheap flights from London to Bangkok

September is the cheapest month for this route, and the price calendar on this page shows what every other month of the year looks like, so you can weigh your dates before you commit. Fares climb around school holidays and through the run-up to the end of the year, when both London and Bangkok fill up with visiting families. Midweek departures are usually quieter and easier to find seats on than weekend ones. If your dates are pinned to a holiday, book early rather than waiting for a drop that may not come.

There are no direct flights between London and Bangkok, so every option here is a connecting one. The Chinese carriers — Air China, China Southern, China Eastern, Xiamen Airlines, Shenzhen Airlines and Hainan Airlines — route you through their home hubs and usually fold a checked bag and meals into the fare. Air Arabia, AirAsia X and Norse Atlantic UK work the low-cost way, with a base ticket and extras added on. Turkmenistan Airlines is the odd one out, with a longer routing. Compare the total, not the headline fare.

Your flight lands at one of two Bangkok airports. Suvarnabhumi International handles most long-haul arrivals and has a rail link into the centre as well as taxis and buses. Don Mueang International is the older field, used mainly by low-cost carriers, and you reach town by road — allow extra time when the traffic is heavy. Both sit well outside the centre, so treat the transfer as part of the journey and check which airport your connection actually uses before you book.

Currency

THB (฿)

Power sockets

Type A, B, C, F · 220 V

Language

Thai

Emergency number

191, 199, 1669

Calling code

+66

Internet domain

.th

Population of Bangkok

5.7 M (2018)

Time zone

UTC+07 (Asia/Bangkok)

Country facts: Wikidata

• Check which London airport your ticket leaves from, since the city has five and they are not interchangeable.
• On low-cost tickets, add up the baggage and seat fees before you compare the total.
• With a connection, make sure both legs sit on one ticket so a delay does not leave you stranded.
• Confirm your passport and visa position for Thailand well before departure.
• Decide whether you want Suvarnabhumi or Don Mueang, as the two Bangkok airports are far apart.
• If you can travel in September, that is when fares on this route dip.