Flights

• Google Flights — compare routes + price tracking

• Skyscanner — flexible date + cheapest options

• Kayak — flight + hotel bundles

• Hopper — predicts when prices will rise or drop

• Momondo — finds hidden fare combinations

Car Rentals

• Enterprise Rent-A-Car — reliable global rental network

• Hertz — widely available international rentals

• Avis — strong airport pickup/drop-off options

• Budget Rent a Car — affordable short-term rentals

• Turo — peer-to-peer car rentals (like Airbnb for cars)

• Sixt — popular in Europe with newer vehicles

Hotels & Stays

• Booking.com — hotels, apartments, free cancellation options

• Expedia — flight + hotel bundles

• Hotels.com — rewards program for frequent stays

• Airbnb — long-term stays, local experiences

• Hostelworld — budget travel + hostel stays

Transportation & Planning

• Rome2Rio — compares all transport options between locations

• Omio — trains, buses, and flights in Europe

• Uber / Lyft — local rideshare in many cities

• Trainline — train travel booking (especially Europe/UK)