What is the legal difference between marketing and operating carrier?

Marketing carrier sold the ticket; operating carrier actually flies the plane. EU261 and Montreal Convention assign different liabilities to each.

Can I sue either carrier under Montreal Convention?

For international carriage, the Montreal Convention's Chapter V provisions (successive/joint carriage) allow claims against either the contracting or actual carrier.

Does EU261 ever hold the marketing carrier responsible?

No. EU261 Article 2(b) fixes liability on the operating carrier. The marketing carrier's role is ticket sale and refund coordination, not compensation.

What is 'successive carrier' under Montreal?

A passenger whose carriage is performed by several carriers in sequence treats each as a successive carrier for that segment. Liability per segment to the performing carrier.

Do US courts recognize these definitions?

Yes, as incorporated into treaty obligations. US courts apply Montreal Convention to international carriage involving codeshares.

What if the marketing carrier is also the operating carrier?

Then the distinction collapses; both roles rest on one airline. File any claim with that carrier.

Do the definitions apply to cargo as well as passengers?

Montreal Convention Chapter V applies to both passenger and cargo carriage with both operating/contracting distinctions.

← Back to blog

LegalApril 23, 2026•7 min read

Codeshare Marketing Carrier vs Operating Carrier: Legal Definitions

Marketing vs operating carrier is the defining distinction of codeshare law. EU261 Article 2(b), Montreal Convention, and US DOT rules each handle the distinction slightly differently. Here is the legal definitions map that governs every codeshare claim.

Marketing vs Operating Carrier: The Legal Distinction

Marketing vs operating carrier is a legal distinction codified across multiple regimes. EU261 Article 2(b) defines 'operating air carrier' as the one performing the flight. Montreal Convention 1999 Article 39 uses the term 'actual carrier' with similar meaning. US DOT regulations distinguish 'ticketing carrier' and 'operating carrier' for reporting and consumer protection purposes.

Three legal regimes, one consistent rule: operating carrier bears the flight-performance liability; marketing (ticketing) carrier bears the contract-of-carriage / ticket-sale obligations.

EU261 Definitions

›
Operating air carrier (Article 2(b)): 'An air carrier that performs or intends to perform a flight under a contract with a passenger.'
›
Community carrier (Article 2(c)): Carrier holding valid EU operating license.
›
Contracting carrier (by implication): The entity selling the ticket. Often the marketing carrier; may be different from operating carrier.

Montreal Convention Definitions

›
Contracting carrier: The party who makes the contract with the passenger.
›
Actual carrier: The party actually performing the transportation.
›
Successive carriers (Article 36): When a carriage is performed by several carriers in succession.
›
Code-share (Article 39): Treats contracting and actual carriers jointly and severally liable for certain claims.

US DOT Definitions

›
Ticketing carrier: The airline whose code appears on the ticket and who handles refund per DOT 2024 automatic refund rule.
›
Operating carrier: The airline actually flying the aircraft for that segment.
›
Part 250 (IDB): Applies to the operating carrier for oversales at the gate.
›
Part 259 (consumer protection): Applies to both, but most refund obligations run through the ticketing carrier.

Joint and Several Liability

Under the Montreal Convention, for international carriage involving both contracting and actual carriers, the passenger can sue either. This is a powerful right: if the operating (actual) carrier dodges, the marketing (contracting) carrier can be named as co-defendant. Most airlines prefer to settle rather than litigate joint liability. See Delta-KLM joint venture codeshare rules for a joint-venture example and SkyTeam codeshare rebooking rules for the alliance-level rules.

Practical Implications

›
EU261 claims go to operating carrier; contracting carrier is not liable.
›
Montreal Convention baggage claims can go to either; pick the operating carrier unless unreachable.
›
DOT refund claims go to ticketing carrier.
›
DOT IDB compensation goes to operating carrier.
›
Frequent flyer disputes go to marketing carrier.

See codeshare upgrade rights: the unexpected rules for upgrade handling.

Pillar Link and Authority Sources

See the full pillar at Codeshare Flight Rights: Which Airline Is Responsible. Primary sources: Regulation (EC) 261/2004 Article 2, Montreal Convention 1999, and 14 CFR 259.

Confused about which carrier to file against? TravelStacks identifies the right entity. Start a claim in 30 seconds.

Think your flight qualifies?

Check in 30 seconds. Free to find out.

Check my flight