---
source_url: "https://www.tripstack.com/tripstack-api?utm_source=openai"
title: "TripStack API: LCC, NDC & Virtual Interlining fares | TripStack"
mirrored_at: 2026-08-19T01:08:37.261Z
host: www.tripstack.com
cited_in_42a: true
mirror_canonical: "https://index.42a.ai/www.tripstack.com/tripstack-api__q__utm_source_openai"
---

> **Original source:** https://www.tripstack.com/tripstack-api?utm_source=openai

The Tripstack flight booking API provides access to the world's most important Low-Cost-Carriers (LCC), NDC API connections and Virtual Interlining (VI) fares.

The flight booking API is simple to integrate and includes the most important ancillaries: Baggage, Seat Selection and Branded Fares. Without any mark-up added to the fares in the flight booking API, it is highly competitive with access to fares not available through other distribution channels.

![SmjT7gx-.png](https://static.wixstatic.com/media/555c3d_54170d13312349f5a8310c65d7660c29~mv2.png/v1/fill/w_673,h_382,al_c,q_85,usm_0.66_1.00_0.01,enc_avif,quality_auto/SmjT7gx-.png)

### Low-Cost-Carrier (LCC) Integrations

-   100+ of the world's most important LCCs in our flight booking API
    
-   Access to fares not readily available via other distribution channels
    
-   Baggage, Seat Selection (with full seat maps) and Branded Fares are available in our flight booking API
    
-   No markups or additional fees added to the fares
    
-   Cost effective booking fee
    

### Virtual Interlining (VI) fares

-   Virtual Interlining fares available alongside LCC and NDC content in our flight booking API
    
-   Virtual Interlining fares include combinations from LCC, FSC and NDC content
    
-   Highly customizable flight booking API allowing for the selection of airlines & minimum / maximum connect times
    
-   Advanced features include 2+ transfers & airport transfers
    
-   TripStack builds the Virtual Interlining fares and allows the customer to book the flight components using their preferred provider
    
-   Virtual Interlining Guarantee protects the customer from missed connections due to delays and schedule changes
    
-   Cost effective Booking fee as a % of the total fare
    

![Gobal Connectovity\_VI.jpeg](https://static.wixstatic.com/media/15c3bf_4c35ce31d78b4021adbf4608338acee0~mv2.jpeg/v1/crop/x_0,y_0,w_3306,h_1914/fill/w_660,h_382,al_c,q_80,usm_0.66_1.00_0.01,enc_avif,quality_auto/Gobal%20Connectovity_VI.jpeg)

![](https://static.wixstatic.com/media/15c3bf_7a5298189c4c49919223b46c5b171d6b~mv2.png/v1/fill/w_314,h_314,al_c,lg_1,q_85,enc_avif,quality_auto/15c3bf_7a5298189c4c49919223b46c5b171d6b~mv2.png)

### NDC API Integrations

-   IATA qualified NDC Airline Retailer
    
-   NDC 17.2 Certified - [Registry](https://retailing.iata.org/armi/registry/tripstack/)
    
-   Growing list of NDC API integrations that includes the most important Full-Service-Carriers (FSC) and Low-Cost-Carriers (LCC)
    
-   Full NDC capability including Shopping, Booking, Ticketing
    
-   Ancillary support including baggage, seat selection and branded fares
    

## Virtual Interlining (VI) by the Numbers

86%

VI with 1 transfer

9%

VI with 2+ transfers

5%

VI with Airport Transfer

60%

VI Itineraries combining 2 or more Low-Cost Carriers 

40%+

Global routes where VI produces the cheapest or best itinerary

$400+

Average Order Value (AOV) for VI fares

10-20%

Average markup applied for VI fares with respect to the base fare

STN, BCN

Top VI Airport Hubs

### Integration Guide & Self-Serve Portal

-   Online flight booking API documentation available [here](https://efoe.tripstack.com/swagger/index.html#/)
    
-   Flight booking API Integration guide with request & response examples for LCC, NDC and Virtual Interlining fares
    
-   Self-Serve Portal to simplify booking management and API configuration
    
-   24/7 Dedicated Integration Support
    
-   Integrate in 4+ weeks and start selling LCC, NDC & Virtual Interlining fares
    

![Self Serve Portal 2.jpeg](https://static.wixstatic.com/media/15c3bf_014c7c642d3a406f91f7a52dbdddc6de~mv2.jpeg/v1/crop/x_0,y_0,w_7806,h_4410/fill/w_666,h_376,al_c,q_80,usm_0.66_1.00_0.01,enc_avif,quality_auto/Self%20Serve%20Portal%202.jpeg)

![Performance Metrics\_1.jpg](https://static.wixstatic.com/media/15c3bf_ab4b5b2747bf4673ac09a6a7987613d4~mv2.jpg/v1/crop/x_0,y_488,w_4800,h_2712/fill/w_600,h_339,al_c,q_80,usm_0.66_1.00_0.01,enc_avif,quality_auto/Performance%20Metrics_1.jpg)

### Flight booking API performance metrics

-   High Availability with 99.9% system uptime
    
-   Multi Cloud Hosted with GCP, AWS
    
-   Fast response times: < 1 sec at search
    
-   200M+ Daily API searches
    
-   High Bookability: > 90%
    
-   24/7 customer support