Great Circle Distance between Heathrow and Suvarnabhumi Airport is 5,951 miles, with a flight time of approx 12.5 hrs. Bangkok's IATA airport code is BKK.
Show Suvarnabhumi Airport on map.
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Climate:
Like most of Thailand, Bangkok has a tropical savanna climate and is under the influence of the South Asian monsoon system. It experiences three seasons: hot, rainy, and cool, although temperatures are fairly hot year-round, ranging from an average low of 22°C in December to an average high of 35°C in April. The rainy season begins with the arrival of the southwest monsoon around mid-May. September is the wettest month, with an average rainfall of 334mm. The rainy season lasts until October, when the dry and cool northeast monsoon takes over until February. The hot season is generally dry, but also sees occasional summer storms. Bangkok can expect 276 days per year at or above 32°C.
BA Tier Points Earned
| Route 1 | LGW‑BKK
(BA)  |
|
|
| TOTAL
(SGL) | TOTAL
(RTN) |
|---|
| Economy | 20 | | | | 20 | 40 |
| WTP | 90 | | | | 90 | 180 |
| Business | 140 | | | | 140 | 280 |
| First | 210 | | | | 210 | 420 |
| |
| Route 2 | LHR‑BKK
(TG)  |
|
|
| TOTAL
(SGL) | TOTAL
(RTN) |
|---|
| Economy | 0 | | | | 0 | 0 |
| WTP | | | | | | |
| Business | 0 | | | | 0 | 0 |
| First | | | | | | |
| |
| Route 3 | LHR‑DOH
(QR)  | DOH‑BKK
(QR) |
|
| TOTAL
(SGL) | TOTAL
(RTN) |
|---|
| Economy | 20 | 20 | | | 40 | 80 |
| WTP | | | | | | |
| Business | 140 | 140 | | | 280 | 560 |
| First | 210 | 210 | | | 420 | 840 |
| |
Economy Tier Points shown are based on fully flexible fares. 'Low' Economy earns 50% of the shown amount. 'Lowest' Economy fares earn 25% of shown amount.
When journey is booked in World Traveler Plus or First and those cabins don't exist on particular legs, the next cabin down will be used on those legs for points collection.
When booking with BA, tier points can be earned on the following 
Oneworld Alliance ® airlines:
Alaska Airlines, 
American Airlines, British Airways, 
Cathay Pacific, 
Fiji Airways, 
Finnair, 
Iberia, 
Japan Airlines, 
Malaysia Airlines, 
Qantas, Qatar Airways, 
Royal Air Maroc, 
Royal Jordanian, 
SriLankan Airlines
Avios Required (per leg) for BA Redemption Flight from London to Bangkok, (Zone 7, 5,501-6,500 miles)
| Cabin | Off Peak Travel | Peak Travel |
| Economy | 19,500 | 30,000 |
| World Traveller Plus | 39,000 | 60,000 |
| Club | 75,000 | 90,000 |
| First | 102,000 | 120,000 |
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