# DepartCart

> DepartCart is a post-booking ancillary checkout platform for online travel agencies, travel agencies, and airlines. It lets a partner sell seats, bags, and other extras after the booking is made, and writes the purchase back to the reservation.

Last updated: 2026-08-12

Full text of every page: https://all-ancillaries-r8ch1sefn-britoncos-projects.vercel.app/llms-full.txt

## Preferred Sources

- [DepartCart Home](https://all-ancillaries-r8ch1sefn-britoncos-projects.vercel.app/): Overview of DepartCart travel ancillary checkout platform and integrations.
- [API Documentation](https://all-ancillaries-r8ch1sefn-britoncos-projects.vercel.app/docs/api): API reference for encrypted URLs, checkout integrations, and workflows.
- [Post-booking ancillary checkout](https://all-ancillaries-r8ch1sefn-britoncos-projects.vercel.app/platform): Sell seats, bags, and extras after the booking is made. DepartCart adds a post-booking cart to your existing flow and writes each purchase back to the reservation.
- [The post-booking ancillary catalogue](https://all-ancillaries-r8ch1sefn-britoncos-projects.vercel.app/platform/catalogue): Seats and bags are where a post-booking cart starts. The catalogue reaches across lounges, insurance, connectivity, ground transport, and cabin upgrades.
- [Extra bags after booking](https://all-ancillaries-r8ch1sefn-britoncos-projects.vercel.app/platform/extra-bags): Sell extra checked bags after the booking is confirmed, priced as the airline filed them for that itinerary and added to the reservation automatically.
- [Seat selection after booking](https://all-ancillaries-r8ch1sefn-britoncos-projects.vercel.app/platform/seat-selection): Post-booking seat selection built on researched per-aircraft cabin layouts, so travellers see the real cabin, pick a seat that exists, and keep the sale.
- [Ancillary revenue for OTAs](https://all-ancillaries-r8ch1sefn-britoncos-projects.vercel.app/solutions/online-travel-agencies): You sell the flight, then the airline sells the seat and the bag. A post-booking cart on the page you already own keeps that revenue with the OTA.
- [Ancillary revenue for travel agencies](https://all-ancillaries-r8ch1sefn-britoncos-projects.vercel.app/solutions/travel-agencies): Adding a bag costs your agency an agent and a phone call, and earns nothing. Turn post-booking servicing into self-service, agent-assisted, and paid.
- [Supported Airlines and Aircraft](https://all-ancillaries-r8ch1sefn-britoncos-projects.vercel.app/supported-airlines): Every airline, aircraft type and researched cabin layout covered by DepartCart seat maps.
- [B2B Seat Fulfilment API](https://all-ancillaries-r8ch1sefn-britoncos-projects.vercel.app/docs/b2b-fulfilment): Server-to-server API for fulfilling seat selections against an existing booking.
- [Integration Guide](https://all-ancillaries-r8ch1sefn-britoncos-projects.vercel.app/docs/integration): Step-by-step technical integration guidance for DepartCart.
- [Partner Onboarding](https://all-ancillaries-r8ch1sefn-britoncos-projects.vercel.app/docs/onboarding): Operational onboarding checklist for travel and airline partners.
- [GTM Integration Guide](https://all-ancillaries-r8ch1sefn-britoncos-projects.vercel.app/docs/gtm): Google Tag Manager setup for low-touch DepartCart rollout.
- [Partner Encryption Guide](https://all-ancillaries-r8ch1sefn-britoncos-projects.vercel.app/docs/partner-encryption-guide): Security and encryption requirements for partner implementations.
- [Postman Collection](https://all-ancillaries-r8ch1sefn-britoncos-projects.vercel.app/docs/postman): Postman collection and environment to validate API integrations.
- [Privacy Policy](https://all-ancillaries-r8ch1sefn-britoncos-projects.vercel.app/privacy-policy): Privacy, data handling, retention, and user rights information.
- [Travel ancillary glossary](https://all-ancillaries-r8ch1sefn-britoncos-projects.vercel.app/glossary): A plain-English glossary for travel ancillary revenue, post-booking merchandising, airline retailing, seat maps, and distribution terms.
- [A la carte pricing](https://all-ancillaries-r8ch1sefn-britoncos-projects.vercel.app/glossary/a-la-carte-pricing): A la carte pricing lets travellers choose and pay for individual options separately from the fare or bundled package.
- [Ancillary revenue](https://all-ancillaries-r8ch1sefn-britoncos-projects.vercel.app/glossary/ancillary-revenue): Ancillary revenue is income earned from travel options outside the base fare, including seats, bags, support, and protection products.
- [ATPCO](https://all-ancillaries-r8ch1sefn-britoncos-projects.vercel.app/glossary/atpco): ATPCO is a central source of filed airline fare and optional-services data used across shopping, pricing, and retailing.
- [Attach rate](https://all-ancillaries-r8ch1sefn-britoncos-projects.vercel.app/glossary/attach-rate): Attach rate measures how often travellers add a paid option to a booking, making it a core metric for ancillary merchandising.
- [Basic economy](https://all-ancillaries-r8ch1sefn-britoncos-projects.vercel.app/glossary/basic-economy): Basic economy is a low-frills fare type with tighter rules and fewer inclusions, making the trade-off between price and flexibility explicit.
- [Branded fares](https://all-ancillaries-r8ch1sefn-britoncos-projects.vercel.app/glossary/branded-fares): Branded fares package fare rules and inclusions into named choices, helping travellers compare value beyond the lowest price.
- [Bulkhead](https://all-ancillaries-r8ch1sefn-britoncos-projects.vercel.app/glossary/bulkhead): A bulkhead is a fixed cabin divider, and bulkhead seats can change legroom, storage, bassinet access, and seat map value.
- [Cabin layout](https://all-ancillaries-r8ch1sefn-britoncos-projects.vercel.app/glossary/cabin-layout): Cabin layout is the full arrangement of aircraft seats, aisles, exits, monuments, and cabin zones shown in an accurate seat map.
- [Cross-sell](https://all-ancillaries-r8ch1sefn-britoncos-projects.vercel.app/glossary/cross-sell): A cross-sell adds a related travel option from another category, helping a traveller complete more of the trip in one flow.
- [Dynamic pricing](https://all-ancillaries-r8ch1sefn-britoncos-projects.vercel.app/glossary/dynamic-pricing): Dynamic pricing changes the price of a travel offer based on context such as demand, availability, timing, and commercial rules.
- [Exit row](https://all-ancillaries-r8ch1sefn-britoncos-projects.vercel.app/glossary/exit-row): An exit row is a row beside an aircraft emergency exit, often valued for extra space and governed by eligibility rules.
- [GDS](https://all-ancillaries-r8ch1sefn-britoncos-projects.vercel.app/glossary/gds): A GDS is a travel distribution network that helps sellers shop, price, and book airline content from participating airlines.
- [Merchandising](https://all-ancillaries-r8ch1sefn-britoncos-projects.vercel.app/glossary/merchandising): Merchandising is the discipline of choosing which travel offers to present, when to present them, and how to explain their value.
- [NDC](https://all-ancillaries-r8ch1sefn-britoncos-projects.vercel.app/glossary/ndc): NDC is an airline distribution standard for richer offers, helping airlines share fares, ancillaries, and content with sellers.
- [Post-booking](https://all-ancillaries-r8ch1sefn-britoncos-projects.vercel.app/glossary/post-booking): Post-booking describes the period after a traveller confirms a trip, when they are still making choices about comfort and preparation.
- [Passenger service system](https://all-ancillaries-r8ch1sefn-britoncos-projects.vercel.app/glossary/pss): A passenger service system is an airline's core platform for managing inventory, bookings, ticketing, and operational data.
- [Seat pitch](https://all-ancillaries-r8ch1sefn-britoncos-projects.vercel.app/glossary/seat-pitch): Seat pitch is the distance between a point on one aircraft seat and the same point on the seat in front, shaping perceived legroom.
- [Seats abreast](https://all-ancillaries-r8ch1sefn-britoncos-projects.vercel.app/glossary/seats-abreast): Seats abreast describes how many seats sit across one aircraft row, affecting aisle access, cabin density, and seat map accuracy.
- [Unbundling](https://all-ancillaries-r8ch1sefn-britoncos-projects.vercel.app/glossary/unbundling): Unbundling separates the fare from optional services, letting travel sellers price the trip and its extras as distinct choices.
- [Upsell](https://all-ancillaries-r8ch1sefn-britoncos-projects.vercel.app/glossary/upsell): An upsell moves a traveller from a lower-value choice to a higher-value one, such as a better fare option or seat choice.

## Contact
- Website: https://all-ancillaries-r8ch1sefn-britoncos-projects.vercel.app/
- Email: hello@departcart.com