Cheap flights from San Antonio to Portland from $149
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Antonio to Portland departing on 8/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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American Airlines flights from San Antonio to Portland, Maine
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Delta flights from San Antonio to Portland, Maine
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How to get the cheapest flight ticket from San Antonio to Portland, Maine
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Portland, Maine?
The cheapest month to fly to Portland, Maine from San Antonio is in March. Flight prices, which tend to average around $205, are often lower during this time because this is during the off-season. If you aren’t able to travel to Portland, Maine during the month of March, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $350.
What is the cheapest day to depart on your flight to Portland, Maine?
On average, the least expensive day to fly to Portland, Maine from San Antonio is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $426. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Friday is the most expensive day to depart from San Antonio because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $601.
What is the cheapest time of day to depart on your flight to Portland, Maine?
At noon is the cheapest time of day to fly from San Antonio to Portland, Maine when you can find flight prices for as low as $436. Flying to Portland, Maine at noon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around $514. Of course, these prices can vary depending on the time of year and what airport you fly to.
How far in advance should I book a flight to Portland, Maine?
You are more likely to see cheaper flights to Portland, Maine from San Antonio when booking 12 weeks ahead of your departure date. In general, you can expect to find flights to Portland, Maine for around $492 when searching 12 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland, Maine from San Antonio for as low as $343 on momondo.
What is the cheapest airline that flies from San Antonio to Portland?
Delta, Sun Country Air, and American Airlines are the most popular carriers operating from San Antonio to Portland
What airlines fly to Portland, Maine?
Delta, American Airlines and JetBlue are the top three most popular airlines that fly to Portland, Maine from San Antonio according to our data. Delta is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Portland, Maine. Keep in mind that there are 8 different airlines that fly to Portland, Maine on a routine basis, so you have a few additional options to choose from.
When to book flights from San Antonio to Portland, Maine
Cheap San Antonio to Portland, Maine (SAT to PWM) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from San Antonio to Portland, Maine
How far is San Antonio to Portland by plane?
Portland is 1835.4 mi away from San Antonio. Flights usually cover this in 5h 46m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from San Antonio Airport to Portland Airport?
Prices for flights from San Antonio Airport to Portland Airport were last updated today.
How many operators does momondo search for flights from San Antonio Airport to Portland Airport?
As of June 2025, there are 4 operators available to choose from for flights from San Antonio Airport to Portland Airport.
How old do you have to be to fly from San Antonio Airport to Portland Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Antonio Airport to Portland Airport.
What documentation or ID do you need to fly to Portland Airport?
The travel and health documents you'll need for your trip to Portland 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 Portland Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from San Antonio to Portland, Maine?
Based on momondo bookings for this flight route, the most popular airline on flight routes from San Antonio to Portland, Maine is American Airlines (42% of total bookings). The next most popular airlines are Southwest (21%), Delta (19%), and United Airlines (18%).
Best airlines flying from San Antonio to Portland, Maine
Compare and see reviews for airlines that fly from San Antonio to Portland, Maine with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $317 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $337 | Free Cancellation | Rating 8.0 7,946 reviews | |||
| PriceFrom $347 | Free Cancellation | Rating 8.0 4,287 reviews | |||
| PriceFrom $360 | Free Cancellation | Rating 7.4 8,790 reviews |
Traveling to a place near Portland?
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Why should I use momondo to find a flight deal from San Antonio to Portland?
Finding the right flight to Portland from San Antonio is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Portland quick and easy, saving you time and money.
Can I find flights from San Antonio to Portland with flexible booking policies on momondo?
Yes. All flights to Portland from San Antonio on momondo can be compared and filtered by various policies on offer, including flexible booking.
How can momondo help me find flights from San Antonio to Portland?
Once all potential San Antonio to Portland flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.
I’m not ready to book a flight from San Antonio to Portland right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of San Antonio to Portland flights. All you need is a valid email address and we will do the rest; it is that quick and easy.