Cheap Flights from London to Bangkok
Low fares from $709. Convenient connections in about 12h 34m. Call now and let an expert beat the price you see online.
- Exclusive phone-only fares you won't see online
- Experts help with changes, cancellations & refunds
- No hidden booking fees — pay what you're quoted
- 24/7 US-based travel agents on call
About flights from London to Bangkok
The London to Bangkok route covers roughly 5,951 miles (9,577 km), departing from Heathrow Airport (LHR) and arriving at Suvarnabhumi Airport (BKK). A one-stop journey takes about 12h 34m. Because this is an international route, fares swing widely by season, day of week and how far ahead you book — which is exactly where a quick phone call pays off.
Our travel experts hold consolidator and negotiated fare contracts that aren't shown on public booking sites. Call +1 (855) 302-0422 and we'll search live inventory for your exact dates, hold the best fare, and book it for you — 24/7.
Airlines flying LHR → BKK
- British Airways
- Virgin Atlantic
- American Airlines
- Delta Air Lines
- United Airlines
When is the cheapest time to fly London to Bangkok?
Fares on the London–Bangkok route are usually lowest when you book 3 to 10 weeks ahead and fly mid-week (Tuesday or Wednesday). Prices climb sharply in the final two weeks and around holidays and peak summer travel. Because airlines release a small number of discounted seats on each flight, the best fare can disappear within hours — that's why a quick call often beats refreshing booking sites for days.
London to Bangkok: route at a glance
| Departure airport | Heathrow Airport (LHR), London |
|---|---|
| Arrival airport | Suvarnabhumi Airport (BKK), Bangkok |
| Distance | 5,951 mi (9,577 km) |
| Typical flight time | ~12h 34m (with a connection) |
| Route type | International |
| Fares from | $709 (call for live pricing) |
How to change or cancel a London–Bangkok flight
Plans change. If you need to move your dates, switch passengers, or cancel altogether, the rules depend on your fare type and airline. Many tickets allow changes for a fee (or free within 24 hours of booking), and some qualify for a full refund. Rather than navigate each airline's fine print, call us — we'll review your options, waive avoidable fees where possible, and rebook you fast. Learn more in our guide to cancelling a flight and getting a refund and how to change your flight date without paying a fee.
Frequently asked questions
How much is a flight from London to Bangkok?
Fares from London to Bangkok start around $709 one-way, but the best last-minute deals change daily. Call +1 (855) 302-0422 to get the lowest live fare for your dates.
How long is the flight from London to Bangkok?
The distance is about 5,951 miles, so a typical flight takes roughly 12h 34m.
Which airlines fly from London to Bangkok?
Carriers commonly serving this route include British Airways, Virgin Atlantic, American Airlines, Delta Air Lines, United Airlines.
Can I get a cheaper fare by calling?
Yes. Our agents have access to consolidator and discounted fares that are often lower than online prices. Call +1 (855) 302-0422 — it's free and available 24/7.