---
source_url: "https://www.altexsoft.com/glossary/virtual-interlining/?utm_source=openai"
title: Virtual interlining - AltexSoft
mirrored_at: 2026-08-08T01:01:55.738Z
host: www.altexsoft.com
cited_in_42a: true
mirror_canonical: "https://index.42a.ai/www.altexsoft.com/glossary/virtual-interlining/index__q__utm_source_openai"
---

> **Original source:** https://www.altexsoft.com/glossary/virtual-interlining/?utm_source=openai

[**Virtual interlining**](https://www.altexsoft.com/blog/connecting-flight/#virtual-interlining) involves combining flights between airlines that don’t have interlining agreements to give travelers more connecting options and often cheaper fares.

In case of virtual interlining, [OTAs](https://www.altexsoft.com/blog/online-travel-agency-business/) basically sell tickets for a string of single flights instead of a single ticket for two (or more) connecting flights. So passengers are responsible for self-transfer, i.e., they have to re-claim and recheck their baggage, as well as go through security checkpoints and passport control. Also, they are not allowed to use the customs-free [transit](https://www.altexsoft.com/glossary/transit-lounge/) zones.

Virtual interlining was introduced in 2012 by the Czech startup Kiwi.com and backed up by such tech providers as Dohop and Air Black Box.

Managed virtual interlining or third-generation interlining enables partnerships between full-service carriers (FSCs) and [low-cost carriers](https://www.altexsoft.com/blog/travel/low-cost-airline-distribution-channels-direct-distribution-ndc-gdss-and-low-cost-airline-consolidators/) (LCCs) who, in this way, can avoid the complicated procedures of the IATA framework. Such platforms integrate with an [airline’s system](https://www.altexsoft.com/blog/airline-reservation-systems-passenger-service-systems/) via [APIs](https://www.altexsoft.com/blog/engineering/what-is-api-definition-types-specifications-documentation/), creating a layer to connect the carrier directly to other FSCs, LCCs, and multiple data sources. This allows for expanding networks, establishing new routes, and cross-selling seats and ancillaries without numerous commercial agreements.