Hey there! Located in Terminal 1, Frontier at SFO offers inexpensive prices, but everything else is expensive, as you might expect from a low-cost carrier. You must arrive early since security queues might be long. Other than a few food options, the Frontier Airlines SFO Terminal itself is decent. If you recognize that boarding is a low-cost activity, you'll be alright even if it might feel a little hectic. Frontier provides a cost-effective means of transportation.