Travel & Booking APIs

1. Flight Search & Booking APIs (USA-Based)

Purpose: Search for and book domestic and international flights within and from the USA.

Amadeus API: Provides global flight search capabilities, including major US airlines.
Sabre API: Focuses on US airlines and travel agents for booking and flight management.
Skyscanner API: Includes flight searches with major US airlines like Delta, United, and American Airlines.
Travelport API: Aggregates flight data from several US-based airlines.
Google Flights API: Provides access to flight search and price tracking for US travelers.

Purpose: Search for and book hotels within the USA, including major hotel chains and boutique options.

Purpose: Search for and book car rentals in the USA, including major car rental companies.

Hertz API: Offers car rentals throughout the US.
Avis API: Provides booking options for car rentals across the USA.
Enterprise Rent-A-Car API: Available in the US for vehicle bookings.
Rentalcars.com API: Aggregates US car rental companies for comparison and bookings.

Purpose: Provide real-time schedules, routes, and fare information for US-based public transportation systems (buses, subways, trains).

MTA API (New York City): Provides real-time transit data, schedules, and service alerts for NYC’s subway and bus systems.
BART API (San Francisco Bay Area): Offers schedules, station data, and real-time updates for the Bay Area Rapid Transit system.
WMATA API (Washington D.C.): Provides real-time bus and train information for the Washington D.C. metro area.
LA Metro API: Delivers bus and train schedule data for the Los Angeles metropolitan area.
NextBus API: Provides real-time bus and transit information for several US cities.

Purpose: Provide access to ride-hailing services in the USA, allowing users to book rides through services like Uber, Lyft, or local taxi companies.

Uber API: Available across major cities in the USA for real-time ride bookings and fare estimates.
Lyft API: Provides ride-hailing services throughout the USA, including ride availability, cost, and booking options.
Curb API: Focuses on taxi services across US cities.
Gett API: Offers black car services in select US cities.

Purpose: Compare and book travel insurance plans, specifically for US residents or those traveling from the USA.

Allianz Travel Insurance API: Offers travel insurance plans and claims processing for US-based customers.
World Nomads API: Provides travel insurance options for US travelers, with a focus on adventure travel.
Squaremouth API: Compares travel insurance options for US-based travelers.

Purpose: Provide real-time weather forecasts, alerts, and historical data specifically for travel destinations within the USA.

NOAA API: Provides weather data from the US National Oceanic and Atmospheric Administration, including forecasts and alerts.
AccuWeather API: Offers detailed weather data, including real-time updates for US cities.
Weather Underground API: Provides weather forecasts and historical weather data for locations across the USA.
OpenWeatherMap API: Offers real-time and historical weather data with US-specific weather reporting.

Purpose: Provide information about visa requirements and immigration regulations for those traveling to and from the USA.

Sherpa API: Offers visa, passport, and health document requirements for travelers entering the USA.
Timatic API: Used by airlines and travel agencies to provide visa and immigration requirements for international travel to and from the USA.

Purpose: Provide real-time schedules, route information, and ticketing options for rail and bus services in the USA.

Amtrak API: Provides train schedules, availability, and ticket booking for travel across the US rail network.
Greyhound API: Offers bus schedules, seat availability, and ticket booking for bus services across the USA.
Megabus API: Delivers schedules and booking for bus travel between major US cities.
BoltBus API: Provides bus schedules and ticket bookings for routes in the northeastern and western US.

Purpose: Search and book cruises departing from or within the USA, including itineraries and availability.

Carnival Cruise API: Offers data on cruise bookings, available itineraries, and pricing for cruises departing from US ports.
Royal Caribbean API: Provides cruise search and booking options with a focus on US departures.
Norwegian Cruise Line API: Access to cruises departing from various US ports.

Purpose: Help users generate and manage travel itineraries for domestic and international travel from the USA.

TripIt API: Organizes and manages travel itineraries, including flight, hotel, and activity bookings, with strong usage by US-based travelers.
WorldMate API: Offers itinerary management for US-based travelers, integrating with flight and hotel bookings.
Google Trips API: Helps create travel itineraries, pulling data from flight and hotel bookings made by US users.

Purpose: Provide detailed information about travel destinations in the USA, including points of interest, restaurants, and local attractions.

TripAdvisor API: Provides access to reviews and recommendations for US-based destinations, restaurants, and attractions.
Foursquare API: Offers information about places to eat, visit, and explore in US cities.
Yelp API: Focuses on restaurant reviews, recommendations, and businesses in the USA.

Purpose: Provide real-time and historical exchange rates, particularly for US travelers exchanging foreign currency.

XE API: Provides exchange rates for US travelers, including historical rates and currency conversion tools.
Currencylayer API: Real-time exchange rates for over 150 currencies, including the US dollar.

Purpose: Enable US-based companies to manage corporate travel bookings, expense management, and itineraries.

Concur API: Provides tools for managing corporate travel expenses and itineraries, widely used by US companies.
Expensify API: Manages travel expenses for US-based businesses.
TravelBank API: Helps businesses manage corporate travel budgets, expenses, and itineraries.

Purpose: Provide access to travel-related content such as news articles, travel guides, and user-generated reviews for US travelers.

Lonely Planet API: Offers travel guides and destination information with a strong focus on the US market.
Zomato API: Provides restaurant recommendations and reviews for US cities.
TripAdvisor API: Delivers user reviews for US-based hotels, restaurants, and attractions.