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Cheap flights from San Antonio to Portland, Maine from $140

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, Maine departing on 4/13. 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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0 bags

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Find the cheapest flights from San Antonio to Portland

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from San Antonio to Portland.
12:21 pm - 9:12 amSAT-PWM
19h 51m1 stop
10:12 am - 8:13 amPWM-SAT
23h 01m1 stop
$348Frontier
Find Deal
Sat, Apr 12 - Sat, Apr 19
10:45 am - 5:59 pmSAT-PWM
6h 14m1 stop
6:00 am - 11:10 amPWM-SAT
6h 10m1 stop
$351Delta
Find Deal
Wed, Aug 20 - Wed, Sep 3
1:06 pm - 8:02 pmSAT-PWM
5h 56m1 stop
3:48 pm - 11:57 pmPWM-SAT
9h 09m1 stop
$354American Airlines
Find Deal
Thu, Aug 14 - Sat, Aug 16
10:45 am - 5:59 pmSAT-PWM
6h 14m1 stop
6:00 am - 3:15 pmPWM-SAT
10h 15m2 stops
$356Delta
Find Deal
Wed, Aug 20 - Wed, Sep 3
3:55 pm - 11:25 pmSAT-PWM
6h 30m1 stop
1:35 pm - 10:35 pmPWM-SAT
10h 00m2 stops
$362Southwest
Find Deal
Tue, Jun 17 - Tue, Jun 24
1:25 pm - 10:46 pmSAT-PWM
8h 21m1 stop
7:59 am - 4:26 pmPWM-SAT
9h 27m1 stop
$370American Airlines
Find Deal
Thu, Sep 25 - Tue, Sep 30
5:10 am - 2:35 pmSAT-PWM
8h 25m1 stop
8:15 am - 4:40 pmPWM-SAT
9h 25m2 stops
$378Southwest
Find Deal
Thu, Aug 14 - Sat, Aug 16
12:50 pm - 11:17 pmSAT-PWM
9h 27m1 stop
11:17 am - 11:08 pmPWM-SAT
12h 51m3 stops
$451United Airlines
Find Deal
Thu, Sep 25 - Tue, Sep 30
5:30 am - 2:33 pmSAT-PWM
8h 03m2 stops
11:47 am - 11:00 pmPWM-SAT
12h 13m3 stops
$456United Airlines
Find Deal
Wed, Aug 20 - Wed, Sep 3
7:05 am - 2:07 pmSAT-PWM
30h 02m3 stops
3:17 pm - 8:56 amPWM-SAT
18h 39m3 stops
Thu, May 15 - Sun, May 18

American Airlines flights from San Antonio to Portland, Maine

Our best American Airlines deals on San Antonio to Portland, Maine flight tickets
American Airlines
Aug 14
SAT1:06 pmSan Antonio
5h 56m
1 stop
PWM8:02 pmPortland
Aug 16
PWM3:48 pmPortland
9h 09m
1 stop
SAT11:57 pmSan Antonio
American Airlines
Sep 25
SAT1:25 pmSan Antonio
8h 21m
1 stop
PWM10:46 pmPortland
Sep 30
PWM7:59 amPortland
9h 27m
1 stop
SAT4:26 pmSan Antonio
American Airlines
Sep 25
SAT5:04 amSan Antonio
8h 56m
1 stop
PWM3:00 pmPortland
Sep 30
PWM3:50 pmPortland
6h 56m
1 stop
SAT9:46 pmSan Antonio

Southwest flights from San Antonio to Portland, Maine

Our best Southwest deals on San Antonio to Portland, Maine flight tickets
Southwest
Jun 17
SAT3:55 pmSan Antonio
6h 30m
1 stop
PWM11:25 pmPortland
Jun 24
PWM1:35 pmPortland
10h 00m
2 stops
SAT10:35 pmSan Antonio
Southwest
Aug 14
SAT5:10 amSan Antonio
8h 25m
1 stop
PWM2:35 pmPortland
Aug 16
PWM8:15 amPortland
9h 25m
2 stops
SAT4:40 pmSan Antonio
Southwest
Aug 14
SAT5:35 amSan Antonio
8h 00m
2 stops
PWM2:35 pmPortland
Aug 16
PWM8:15 amPortland
9h 25m
2 stops
SAT4:40 pmSan Antonio

See travel insights to Portland from

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 April. Flight prices, which tend to average around $356, 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 April, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $396.

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 10 weeks ahead of your departure date. In general, you can expect to find flights to Portland, Maine for around $512 when searching 10 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 $296 on momondo.

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

As of March 2025, prices for San Antonio to Portland, Maine flights are approximately 34% more expensive when compared to flights at the same time last year.

When to book flights from San Antonio to Portland, Maine

Are you open to changing your travel dates? Check out the ideal times to fly from San Antonio to Portland, Maine according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

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

Best Price Found

$140

Fastest flight time

5h 37m

Direct flights

None

Airports in Portland, Maine

1 airport
The best one-way flight to Portland, Maine from San Antonio in the past 72 hours is $140. The best round-trip flight deal from San Antonio to Portland, Maine found on momondo in the last 72 hours is $348.
The fastest flight from San Antonio to Portland, Maine takes 5h 37m
There are no direct flights from San Antonio to Portland, Maine. Popular non-direct route for this connection is San Antonio Airport - Portland Airport.
There is 1 airport near Portland, Maine: Portland (PWM)

  • How far is San Antonio to Portland by plane?

    Portland is 1835.4 mi away from San Antonio. Flights usually cover this in 5h 37m, 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?

  • 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?


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
DeltaPriceFrom $286Free CancellationRating
8.0
7,899 reviews
Search Delta flights
American AirlinesPriceFrom $326Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $347Free CancellationRating
8.0
4,275 reviews
Search Southwest flights
United AirlinesPriceFrom $356Free CancellationRating
7.4
8,614 reviews
Search United Airlines flights

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
North Conway
Jackson
Boothbay Harbor
Conway
Freeport
Bartlett
Lewiston
Gorham
Brunswick
Auburn
Intervale
Windham
Bath
Falmouth
Oxford
Tamworth
Georgetown

Why use momondo?

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.


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