Which airline flies the most flights to SAT? The top airline carrier flying out of San Antonio Intl. is Southwest Airlines and they fly over 1,928 flights every month. What are the cheapest flights from SAT? San Antonio has a lot of discount flights in the month of May. Check out these great deals on flights from SAT:
- United - San Antonio (SAT) to Seattle (SEA) leaving on 6/2 at 5:23 pm and returning on 6/4 at 6:41 am for only $299 per person.*
- Frontier Airlines - San Antonio (SAT) to Phoenix (PHX) on 6/6 leaving at 6:59 pm and returning on 6/7 at 8:19 am for only $139 per person.*
- Frontier Airlines - San Antonio (SAT) to Las Vegas (LAS) on 6/5 leaving at 7:47 am and returning on 6/7 at 2:10 pm for only $141 per person.*
- Frontier Airlines - San Antonio (SAT) to San Diego (SAN) on 6/1 leaving at 9:05 am and returning on 6/3 at 3:40 pm for only $184 per person.*
*Prices vary and will be updated when you view current flight availability results. Deals displayed here are based on flight pricing and availability as of 05/19/2018 and may change as you get closer to the actual flight date. Deals displayed whose dates are in the past are no longer valid.