Q: What is the typical price of a round-trip flight between Portland, Maine and San Antonio?

Prices are currently low for flights on this route. Typical prices usually range from $595 to $417. The lowest price recently found on this route was $342.

Question 1

How have Portland, Maine to San Antonio flight prices changed over time?

Accepted Answer

As of April 2026, prices for Portland, Maine to San Antonio flights are approximately 19% cheaper when compared to flights at the same time last year.

Question 2

What airlines fly to San Antonio?

Accepted Answer

Delta, JetBlue and Southwest are the top three most popular airlines that fly to San Antonio from Portland, Maine according to our data. Delta is the first choice among our users, with 53% of people opting to fly with this airline when traveling to San Antonio. Keep in mind that there are 7 different airlines that fly to San Antonio on a routine basis, so you have a few additional options to choose from.

Question 3

What is the cheapest airline that flies from Portland to San Antonio?

Accepted Answer

Breeze Airways, United Airlines, and American Airlines are the most popular carriers operating from Portland to San Antonio

Question 4

What is the typical price of a round-trip flight between Portland, Maine and San Antonio?

Accepted Answer

Prices are currently low for flights on this route.Typical prices usually range from $595 to $417.
The lowest price recently found on this route was $342.

Question 5

What is the cheapest month to fly to San Antonio?

Accepted Answer

If you aren’t able to travel during the month of February, then book flights to San Antonio from Portland, Maine during July instead. Flights to San Antonio in July, while not as cheap as those in February, still average around $396.

Question 6

When did momondo last update prices for flights from Portland Airport to San Antonio Airport?

Accepted Answer

Prices for flights from Portland Airport to San Antonio Airport refresh daily.

Question 7

How many operators does momondo search for flights from Portland Airport to San Antonio Airport?

Accepted Answer

There are 4 operators available for flights from Portland Airport to San Antonio Airport as of April 2026.

Question 8

How old do you have to be to fly from Portland Airport to San Antonio Airport?

Accepted Answer

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to San Antonio Airport.

Question 9

What documentation or ID do you need to fly to San Antonio Airport?

Accepted Answer

The travel and health documents you'll need for your trip to San Antonio Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Antonio Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

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