APIs and data feeds are the lifeblood of the travel industry. They power everything from selling flight tickets to beautiful map-based travel guides.

Think about it. It’s amazing that entrepreneurs can make use of all the existing infrastructure and data to build exciting new things on top of it. Want to build a recommendation engine for worldwide spontaneous trips, combining flight ticket prices and weather data? Not a problem.

This is why we have listed a collection of great travel APIs to work with. The following list is certainly missing a ton of interesting services, so please drop us a line, if you know of other exciting APIs. The only two requirements are that the API is related to the realm of travel and somewhat universal (public transportation data for an individual city is great but not for this list).

HotelsCombined Data Feeds
Hotel meta search (price comparison) data

Expedia Affiliate Network API
Full-stack hotel search and booking API

Olery Review Data API
Access to data about hotels, Restaurants & Attractions quality extracted from online reviews published on various booking sites

TripAdvisor Content API
TripAdvisor listings, ratings and (limited) reviews  for approved consumer-facing sites/apps

HomeAway Platform
Access to more than 1 millions vacation rental listings

ZUMATA Hotel Booking API
Aggregates hotel inventory from 60+ suppliers at makes it all bookable

TraveloPro

Travelopro provides travel API integration, third party API integration, xml API integration services for hotels, flights, car rentals, holiday packages and many more.

Makcorps

Hotel price comparison API. They compare more than 200 hotel OTAs