oneworld lounge access rules (believed to be correct as at 2024-01-03 [0])

You may access a lounge (first-class, where available, if in First Class) if all of the following conditions are met:

1. You are travelling on a oneworld-marketed and -operated flight [1]
2. You are travelling in or connecting to/from First or Business Class [4]
3. You are travelling from the airport (i.e. origin or transit; not arriving at your final destination [2])
4. You enter the lounge before 06:00 after the day of arrival for the previous segment, if in transit [5]
5. None of the exclusions identified on the oneworld website (see https://www.oneworld.com/airport-lounges ) apply, e.g. "Light" Business fares, super-premium AA/BA lounges

You may access a lounge (first-class, where available, if you are Emerald) if all of the following conditions are met:

1. You are travelling on a oneworld-marketed and -operated flight (even if you are travelling Economy, even "Basic" Economy fares) [6]
2. You are oneworld Sapphire or Emerald [6]
3. You are travelling from the airport (i.e. origin or transit; not arriving at your final destination [2])
4. None of the exclusions identified on the oneworld website (see https://www.oneworld.com/airport-lounges ) apply, e.g. AA/AS/QF paid membership, AA/AS elites and domestic travel, UL elites and regional flights, super-premium AA/BA/QR lounges

You may bring one guest into the lounge if all of the following conditions are met:

1. You may access the lounge (whether first-class or business)
2. The guest is travelling on a oneworld-marketed and -operated flight (does not have to be the same flight as you)
3. The guest is travelling from the airport (i.e. origin or transit; not arriving at their final destination [3])

Notes:

1. The rules are different for oneworld connect (see https://www.oneworld.com/members/fiji-airways for the only current such airline).
2. There may be additional airline-specific ways to enter a lounge (e.g. access on arrival when flying AA domestic (see https://www.aa.com/i18n/travel-info/...lub-access.jsp )), in addition to the oneworld-based ways described above.

Footnotes/references:

[0] The rules are at https://www.oneworld.com/airport-lounges.

[1] The rules for direct flights just say "fly First Class or Business Class with any oneworld member airline" but it is safer to assume this means both marketed and operated by a oneworld airline.

[2] The rules say "at the airport from which the oneworld flight on which the eligible customer is travelling departs".

[3] The rules for direct flights just say "The guest must also be travelling on a flight operated and marketed by a oneworld carrier[/airline]" but it is unlikely this would be accepted as covering arrival at final destination, and in any case it is generally impossible to access departure lounges on arrival (see also [2]).

[4] The rules if your flight is not direct say you "can access the lounge when travelling between an international long haul (a oneworld international long haul flight is defined as an international flight marketed and operated by any oneworld carrier with a scheduled flight time longer than 5 hours) and an international short haul or domestic flight (and vice-versa). Lounge access will be determined on the international long haul ticketed flight (either First of Business Class) regardless of the ticketed class of travel on the international short haul or domestic flight." The rules are not clear if you have two segments that are international with > 5 h travel time and they are in different classes, or if you don't have any such segments (it's possible the rules would be applied for each segment as if it were direct, in the latter case).

[5] The rules say "on the day of travel (or before 06:00am the following day)"; it's not clear whether "day of travel" refers to when the previous flight departed or when it arrived, but it's probably the latter.

[6] The rules say "Members of oneworld airline frequent flyer programmes with the equivalent of oneworld Emerald or Sapphire tier status can use lounges offered by oneworld airlines when departing on any flight marketed and operated by any oneworld member airline, regardless of cabin class being flown (exceptions are noted below)."