The operating carrier is the airline actually operating a flight. It may differ from the airline marketing that flight under its own code. British Airways explains that some flights carrying a BA number are operated by partner airlines and identifies the operator in the itinerary. Source: British Airways: baggage with partner airlines

Why an adviser should check

When reviewing a journey, record the operating airline for each flight. This gives you a clear starting point when checking baggage information or directing the traveller to the right operational information.

Do not assume that every flight in one booking has the same operator. Read each segment rather than relying on the logo at the top of the itinerary.

An illustrative customer explanation

You might write: “This flight is sold under the flight number shown here and is operated by the airline named on your itinerary.” Replace that general wording with the verified names and details for the customer’s booking.

If baggage terms are unclear, check the applicable itinerary rules with the airline or supplier. British Airways notes that baggage allowances can differ on journeys involving other airlines; avoid promising an allowance from the marketing airline’s name alone. Source: British Airways: baggage with partner airlines

Written and updated by Travelgenix. Sources checked on 16 October 2026. Worked examples and checklists are editorial illustrations and recommendations, not customer results.