Olomouc to Prague train with RegioJet a.s.

Deutsche Bahn (DB) is Germany’s main train operator, running around 40,000 domestic and international services each day. Its fleet includes a variety of train types: high-speed ICE (Intercity Express) trains, reaching up to 300 km/h; IC (Intercity) and EC (EuroCity) trains for long-distance travel; and IRE (Interregio-Express), RE (Regional Express), and RB (Regionalbahn) services for regional and local connections. While bathrooms are standard on all trains, amenities such as onboard restaurants and free Wi-Fi are available only on certain train types and routes. DB offers a wide range of fares, including Super Saver, Saver, and Flexible tickets, along with discount cards like the BahnCard 25, 50, and 100. Additional options include single tickets, day tickets, and group tickets. Popular routes include Berlin–Munich, Hamburg–Frankfurt, Cologne–Stuttgart, Berlin–Dresden, and Hamburg–Cologne, as well as numerous regional services across Germany.

Intercity is a broad classification for express train services that connect cities over longer distances than commuter or regional trains, often with limited stops and comfortable carriages for long-distance travel. The term \InterCity\" originated with British Rail in 1966 for its electrified West Coast Main Line services.Today, \"Intercity\" or \"IC\" is a brand name used by various railway operators across Europe and other parts of the world, including PKP Intercity in Poland, Trenitalia in Italy, and services in countries like Sweden and Ukraine. These trains typically offer both Standard and First Class seating, with amenities such as power sockets and luggage space. While some Intercity services are modern and high-speed, others may use older rolling stock, with speeds generally up to 160 km/h (100 mph)."

Southeastern is a train company based in the United Kingdom. It operates services from London to Kent, Sussex, Surrey and parts of East Anglia. It runs services from early morning until late at night, seven days a week. Southeastern has a range of train types, including high-speed Javelin trains, commuter-friendly Metro services, and the classic InterCity services. Ticket types include Advance, Off-Peak, Super Off-Peak, and Anytime tickets. Onboard facilities include free Wi-Fi, power sockets, and a range of food and drink options. The most popular routes for Southeastern are London to Kent, London to Eastbourne, and London to Hastings.

Czech Railways (České dráhy, ČD) is the largest railway company in the Czech Republic, connecting major cities, small towns, and even international destinations across Europe. Its extensive fleet of modern trains ranges from comfortable regional services with A/C and onboard WiFi to high-speed trains offering dining cars, power outlets, and premium seating for long-distance journeys. Czech Railways combines affordability and convenience, making it a popular choice for travelers exploring the Czech Republic and beyond.

DSB is a train company based in Denmark. It offers a wide range of services, including InterCity, Regional, and InterCityLyn trains. InterCity trains are the fastest and most comfortable way to travel, with speeds of up to 200 km/h. Regional trains are slower but offer more stops and are ideal for shorter trips. InterCityLyn trains are the most affordable option and are perfect for longer trips. DSB offers a variety of ticket types, including single tickets, return tickets, and season tickets. Onboard facilities include free Wi-Fi, power outlets, and comfortable seating. The most popular routes for DSB are Copenhagen to Aarhus, Copenhagen to Odense, and Copenhagen to Aalborg. These routes offer travelers the chance to explore the beautiful Danish countryside and experience the unique culture of Denmark.