Cheap Flights from London to Bangkok (BKK)

Find the Best Cheap Flights from London to Bangkok

Bangkok is one of the most popular long-haul destinations for UK travelers. Whether you're planning a holiday in Thailand, connecting to Phuket or Chiang Mai, or starting a Southeast Asia backpacking trip, London offers excellent flight options — including both direct flights and affordable 1-stop routes operated by top global airlines. FlyToDash AI compares all major carriers instantly, helping you find the cheapest fares from Heathrow (LHR) and Gatwick (LGW) to Bangkok’s Suvarnabhumi Airport (BKK).

Thai Airways currently operates one of the fastest direct flights between the UK and Thailand. Meanwhile, Middle Eastern airlines like Qatar Airways, Emirates, and Etihad are excellent choices for smooth 1-stop journeys with short layovers. Bangkok’s popularity means there are frequent deals year-round, and with the right timing you can secure a fare far below the average market price.

✔ Which London Airports Fly to Bangkok?

Bangkok flights depart from two major airports in London:

• London Heathrow (LHR) — Most airlines, including Thai Airways, Qatar, Emirates, Etihad, and Singapore Airlines.
• London Gatwick (LGW) — Often cheaper for 1-stop routes via the Middle East.

Heathrow offers the most flexibility, but Gatwick tends to have competitive pricing on certain airlines — especially during off-peak travel seasons.

✔ Flight Duration: London → Bangkok

How long your trip takes depends heavily on whether you choose a direct or a connecting flight:

• Direct flight: 11–12 hours
• 1-stop flights: 14–20 hours (depending on layover)
• Long layover trips: 20–28 hours

If speed is your priority, Thai Airways is the best choice. If you're looking for comfort and top-tier service, Qatar Airways, Emirates, and Singapore Airlines are highly rated by UK travelers.

✔ Best Airlines from London to Bangkok

Here are the most popular and reliable airlines serving the London–Bangkok route:

• Thai Airways — Direct flights, fastest travel time.
• Qatar Airways — 1-stop via Doha; excellent service and short connections.
• Emirates — 1-stop via Dubai; premium experience and flexible timings.
• Etihad Airways — 1-stop via Abu Dhabi; great for budget and comfort balance.
• Singapore Airlines — 1-stop via Singapore; award-winning cabin experience.
• Turkish Airlines — 1-stop via Istanbul; often the cheapest among major carriers.

✔ Typical Prices for Flights to Bangkok

Flight prices often vary based on demand, season, and airline promotions. Average fare ranges:

• Low-season deals: £430 – £550
• Normal fare range: £580 – £780
• Peak season: £850 – £1,200+

Prices jump significantly during Christmas, New Year, Songkran (Thai New Year), and UK school holidays. Using FlyToDash AI allows you to track day-to-day fare changes and find the best departure date instantly.

✔ Cheapest Months to Fly to Bangkok

The following months consistently show lower-than-average fares:

• May — End of high season, good availability.
• June — Pre-monsoon prices drop significantly.
• September — One of the cheapest months of the year.
• October — Amazing deals right before peak season begins.

✔ When Is the Most Expensive Time to Fly?

• Late December (Christmas & New Year)
• January (return travel rush)
• February (tourism peak)
• July–August (school holidays)

Try to avoid these periods if you're looking for the cheapest fares.

✔ Why Visit Bangkok?

Bangkok is a city that blends energy, culture, nightlife, and tradition like no other place in Southeast Asia. From ancient temples and river cruises to street markets and world-class shopping, the Thai capital has something for every kind of traveler.

• Temple landmarks: Wat Arun, Wat Pho, Grand Palace
• Shopping: Siam Paragon, MBK Center, Chatuchak Market
• Nightlife: Asiatique, rooftop bars, Khao San Road
• Food: Pad Thai, mango sticky rice, boat noodles, and Michelin-rated street food
• Family attractions: Safari World, Sea Life Bangkok Ocean World

Many travelers also use Bangkok as a hub before flying or taking a ferry to Thailand’s islands or northern regions.

✔ Connecting from Bangkok to Other Thai Cities

Bangkok is the main transfer point for domestic flights across Thailand. Popular connections include:

• Bangkok → Phuket (HKT)
• Bangkok → Chiang Mai (CNX)
• Bangkok → Krabi (KBV)
• Bangkok → Koh Samui (USM)
• Bangkok → Pattaya (UTP)

These routes are served by Thai Airways, Bangkok Airways, VietJet, Nok Air, and AirAsia.

✔ Baggage Allowances on Flights to Bangkok

Baggage varies by airline, but here are typical economy allowances:

• Thai Airways: 25kg–30kg
• Qatar Airways: 25kg–30kg
• Emirates: 25kg–30kg
• Turkish Airlines: 30kg
• Etihad: 23kg–30kg (fare class dependent)
• Singapore Airlines: 25kg–30kg

Turkish Airlines often offers one of the most generous baggage policies, making it a great option for long holidays or travelers carrying gifts or shopping items back to the UK.

✔ Tips to Get the Cheapest Flight from London to Bangkok

• Compare Heathrow vs Gatwick fares — price differences can be huge.
• Use FlyToDash AI to view the cheapest departure days instantly.
• Travel mid-week (Tuesday or Wednesday) for consistently lower fares.
• Book 8–12 weeks before travel for the best chances of a deal.
• Consider 1-stop flights — they are often £150–£300 cheaper.
• Avoid peak tourist months where possible.
• Be flexible with your return date — Bangkok fares can swing dramatically from day to day.

Even adjusting your flight by 24 hours can make a difference of £100 or more. FlyToDash AI helps you find these savings in seconds.

✔ Multi-City Options for Thailand Travelers

Many UK travelers combine Bangkok with other destinations:

• London → Bangkok → Phuket → London
• London → Bangkok → Chiang Mai → London
• London → Dubai → Bangkok → London
• London → Singapore → Bangkok → London
• London → Bangkok → Bali → London

FlyToDash AI can help you explore multi-city routes to maximize value and convenience.

Explore Individual Thailand Routes