S7 Airlines: Book Flights is an Android app that offers a wide range of travel-related services for users. Developed by S7 Airlines, the app is free to use and has been designed to make travel planning easy and convenient. With S7 Airlines: Book Flights, users can access the best deals on S7 Airlines tickets and partners around the world. The app also allows users to rent cars, buy more luggage allowance, choose seats in the cabin, and order special meals.

The app also offers a range of features to make travel more comfortable. Users can check-in for their flight without waiting in lines, transfer to business class, and fly with high levels of comfort. The app sends notifications about flight status and check-in starting time, and users can also ask operators important questions via chat. Additionally, the app offers travel guides spotted by locals, allowing users to explore secret routes and find hidden gems. Finally, users can accumulate miles with the S7 Priority card and use them later to pay for new tickets.

Overall, S7 Airlines: Book Flights is a comprehensive travel app that offers a range of features to make travel planning and execution easy and convenient.