British Airways (IATA BA) is a carrier from UK, a member of the Oneworld alliance. In the SiamFlights route catalogue, British Airways serves 1 route reaching 1 destination, with home hubs at London (LHR). Its checked-baggage baseline is 23 kg. Local brand strength rates 8/10.
Routes British Airways flies from Thailand & the region — 1 corridor
The checked-baggage baseline we record is 23 kg.
| Route | Freq/wk | Hours | Market low (mid-2026) |
|---|---|---|---|
| Bangkok (BKK) → London (LHR) | — | — | — |
The market-low column is the cheapest fare in our Travelpayouts cache on that corridor across all carriers, not a British Airways-only price — use it as a floor when comparing.
The frequency shown belongs to the corridor, not to this airline alone. The 0 weekly departures above sum the frequency of the routes British Airways serves, and that count includes every other carrier on the same city pairs. To know how many rotations this airline actually operates on your dates, read its own schedule. We do not publish figures we have not captured.
The airline selling the ticket may not be the one flying it. Our catalogue records the carriers that appear on a corridor, including cases where one sells as marketing carrier on a partner’s aircraft. On a codeshare your baggage, seating and compensation rights attach to the operating carrier, not the name on the booking. Read the “operated by” line before assuming what you will get.
Airline at a glance
British Airways is registered in UK and sits in Oneworld. We record a 23 kg baseline checked allowance. The bases we record for it are London (LHR).| Attribute | Detail | |---|---| | IATA code | BA | | Home country | UK | | Alliance | Oneworld | | Home hubs | London (LHR) | | Baggage baseline | 23 kg | | Migrant-worker uplift | none | | Hajj/Umrah charter | no | | Infant fare | ~10% of adult |
British Airways’s checked-baggage baseline is 23 kg.
The 10% infant fare does not include a seat. It applies to a lap infant travelling without its own seat. Want a separate seat or a car seat and the ticket becomes a child fare, priced as a share of the full fare, with an adult-style allowance. On long sectors the number of positions where a bassinet can be fitted is limited and they go early — request one as far ahead as possible if you need it.
British Airways network & booking
The bases we record for it are London (LHR). The checked-baggage baseline we record is 23 kg.
In this catalogue British Airways’s network reaches 1 destination across 1 country — UK. All fares are shown in Thai baht (THB); compare the weekly cached fares and schedules for each city pair on the route pages, and infant fares run about 10% of the adult fare. Each route page shows a dated fare observation from our weekly fare cache — prices move with season, so check live fares before booking.
Routing through a hub adds reach and a failure point at once. Connecting at London (LHR) widens the destinations available but inserts one more place the plan can break. The upside is that a hub is where the airline keeps aircraft, crew and operations staff, so recovery is faster than at an outstation it touches once a day. If you must connect, connecting at the carrier’s own base is usually the safer choice.
Passenger rights & compensation
British Airways is UK-registered, so its flights fall under UK261 (UK CAA) both departing a UK airport and arriving into the UK from outside. The structure mirrors EU261 post-Brexit, but it is a separate instrument enforced by a different authority.
| Flight distance | Compensation |
|---|---|
| < 1,500 km | £220 |
| 1,500–3,500 km | £350 |
| > 3,500 km | £520 |
Regulator: UK261 (UK CAA). Claims can be filed through AirHelp.
Collect evidence from day one. Whichever frame applies, the burden of proof sits with the passenger. Keep every boarding pass, the airline’s own delay notice or message, receipts for food and accommodation while you waited, and the actual arrival time against the scheduled one. Most rejected claims fail not because there was no right but because nothing documented what actually happened when.
The carrier-nationality clause is the part most people miss. The 261 rules cover every flight departing a UK airport whatever the airline, and cover flights arriving into that zone from outside only when the operating carrier is registered there. British Airways satisfies the second limb, so its Bangkok-to-UK flights are in scope while the identical corridor flown by a non-UK carrier is not.
How British Airways fits travellers
British Airways’s corridors in our catalogue serve mainly these traveller types: —. The bases we record for it are London (LHR).
British Airways’s catalogued routes matter most to the ASEAN & regional leisure segment(s). Its London (LHR) hub(s) are the main transit points. Compare schedules, baggage and fares against other carriers on the route pages before booking.
Your rights do not depend on why you travel. Two passengers on the same flight who paid different prices for different reasons hold identical statutory rights. What actually changes them is the departure country, the carrier’s nationality and whether the flight is scheduled or chartered.
Sources
FAQ
How many routes does British Airways fly in the SiamFlights catalogue?
British Airways (BA) serves 1 route relevant to travellers from Thailand in our catalogue.
What is British Airways’s checked-baggage allowance?
A 23 kg baseline. Always confirm on the official site before travel.
Can I claim delay compensation from British Airways?
Yes. British Airways falls under UK261 on flights departing a UK airport and on flights into the UK that it operates itself; a qualifying 3+ hour delay or cancellation on a Thailand–UK sector is claimable at £520 — direct or via AirHelp.
What alliance is British Airways in?
British Airways is a member of Oneworld.
Is a British Airways flight from Bangkok covered by the 261 rules?
Yes. British Airways is registered in the UK, and the 261 rules cover flights departing that zone whatever the carrier plus flights arriving into it from outside when the operating carrier is registered there. Non-the UK carriers on the same corridor fail that second limb.
Does the British Airways infant fare include a seat?
No. The roughly 10% rate applies to a lap infant with no seat of its own. A separate seat makes it a child fare, priced as a share of the full fare.
Is the low-fare column British Airways’s own price?
No. It is the cheapest fare our cache recorded on that corridor across every carrier serving it. On a multi-carrier route the low may belong to a competitor.