Cheap flights from Oregon to San Antonio from $78

If you aren’t able to travel during the month of August, then book flights to San Antonio from Oregon during September instead. Flights to San Antonio in September, while not as cheap as those in August, still average around $314.

You are more likely to see cheaper flights to San Antonio from Oregon when booking weeks ahead of your departure date. In general, you can expect to find flights to San Antonio for around $398 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Antonio from Oregon for as low as $290 on momondo.

Frontier, Delta, and United Airlines are the most popular carriers operating from Oregon to San Antonio

Alaska Airlines, Delta and Southwest are the top three most popular airlines that fly to San Antonio from Oregon according to our data. Alaska Airlines is the first choice among our users, with 43% of people opting to fly with this airline when traveling to San Antonio. Keep in mind that there are 8 different airlines that fly to San Antonio on a routine basis, so you have a few additional options to choose from.

The number of flights available between Oregon and San Antonio is 3 per week as of March 2026. The most frequent departure day is Mon, with 33% of weekly flights leaving on this day.

Flight times vary depending on what airport in Oregon you fly out of and what airport in San Antonio you fly into. For example, flying from Portland to Austin takes 4h 01m on average. On the other hand, flying from Eugene to Austin takes 5h 39m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.