Leveraging multiple network interfaces, such as Wi-Fi and cellular, on mobile devices can improve user experience for various applications. Deadline-aware MPTCP scheduling can complement existing MPTCP scheduler. The deadline-aware MPTCP scheduler can dynamically select transmission paths to minimize cellular usage while satisfying data transfer deadlines. The deadline-aware MPTCP scheduler can also address several challenges, such as determining the appropriate traffic pattern over cellular paths, designing proper APIs between MPTCP and applications, and making the scheduler functionality robust and lightweight.