Whether you’re flying to Denver, Phoenix, Las Vegas, or somewhere else, using the frontier airlines sfo terminal means beginning your trip in one of SFO’s most user-friendly domestic terminals. Terminal 1 combines modern amenities with practical design, making it a great fit for Frontier’s no-frills, low-cost travel model. By arriving early, knowing what to expect, and preparing ahead of time, your experience flying Frontier from SFO can be just as smooth as flying with any major carrier. With the right prep and a little patience, Terminal 1 makes it easy to get where you’re going—without breaking the bank.