Offers, orders, and the schedule underneath: airline retailing in 2026

There’s a quiet revolution in how airlines sell seats. Under the banner of Modern Airline Retailing, IATA’s NDC (New Distribution Capability) and the shift to Offers and Orders are replacing decades-old distribution plumbing. It’s a genuine change — and a useful moment to point out what isn’t changing underneath it.

From EDIFACT to offers and orders

The legacy model bundles a booking into three linked artifacts — the PNR, the e-ticket, and the EMD (electronic miscellaneous document) — exchanged over text-based EDIFACT messaging via the passenger service system (PSS). The modern model collapses that into two ideas:

• an Offer the airline itself constructs (an XML NDC offer, priced and bundled by the carrier rather than assembled by intermediaries), and
• an Order — via ONE Order, a single record that holds everything about a purchase, retiring the PNR/e-ticket/EMD split.

	Legacy	Modern (Offers & Orders)
Sell	Fares filed, assembled downstream	Airline builds the offer (NDC/XML)
Buy	PNR + e-ticket + EMD	A single ONE Order record
Pipes	EDIFACT via PSS	NDC/O&O APIs

Don’t expect it overnight. Per IATA’s own read, even leading NDC airlines are still in the setup phase; many won’t begin the Offers-and-Orders transition until 2028–2029, and it’s unlikely to be mainstream before 2030, when legacy PSS and EDIFACT finally wind down.

What stays constant: the schedule

Here’s the point. All of this modernizes how a flight is packaged and sold. None of it changes the thing being sold: a seat on a flight that the schedule says operates.

If anything, richer, more personalized retailing raises the stakes on the schedule being correct. An NDC offer that bundles a connection is only sellable if that connection actually clears its minimum connect time; a dynamic offer for a flight depends on that flight being where the schedule says it is. Modern retailing puts more logic on top of the schedule, not less — which means a wrong schedule now corrupts a smarter, more automated sales layer.

Offers and orders change the packaging. The schedule is still the product.

The takeaway

NDC and Offers-and-Orders are the right direction, and they’re coming slowly. As the distribution layer modernizes over the rest of the decade, the foundational schedule-data layer underneath it doesn’t get less important — it gets more load-bearing, because more automated retailing decisions come to rest on it. Modernize the top of the stack all you like; the bottom of it still has to be right.

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Sources

• IATA — Airline Retailing (Offers & Orders)
• IATA — Distribution with Offers & Orders (NDC)
• IATA — Distribution with Offers and Orders fact sheet, June 2026