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Cheap flights from San Antonio to Portland from $172

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 5/6. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from San Antonio to Portland

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
12:52 pm - 10:07 pm
SAT
-
PWM
8h 15m
1 stop
American Airlines Logo
5:40 pm - 11:56 pm
PWM
-
SAT
7h 16m
1 stop
$337American Airlines
mié., feb. 4 - mié., feb. 18
Delta Logo
5:30 am - 12:03 pm
SAT
-
PWM
5h 33m
1 stop
Delta Logo
6:00 am - 3:23 pm
PWM
-
SAT
10h 23m
2 stops
$342Delta
mié., feb. 4 - mié., feb. 18
Delta Logo
1:40 pm - 12:20 am
SAT
-
PWM
9h 40m
2 stops
Delta Logo
6:00 am - 3:23 pm
PWM
-
SAT
10h 23m
2 stops
$348Delta
mié., feb. 4 - mié., feb. 18
Multiple Airlines Logo
6:30 am - 9:07 am
SAT
-
PWM
25h 37m
1 stop
Multiple Airlines Logo
5:06 pm - 11:52 pm
PWM
-
SAT
31h 46m
2 stops
$352Multiple Airlines
jue., ene. 29 - lun., feb. 2
American Airlines Logo
10:32 am - 11:43 pm
SAT
-
PWM
12h 11m
2 stops
American Airlines Logo
6:00 am - 5:04 pm
PWM
-
SAT
12h 04m
2 stops
$354American Airlines
mié., feb. 4 - mié., feb. 18
American Airlines Logo
12:52 pm - 10:07 pm
SAT
-
PWM
8h 15m
1 stop
American Airlines Logo
6:00 am - 5:04 pm
PWM
-
SAT
12h 04m
2 stops
$360American Airlines
mié., feb. 4 - mié., feb. 18
American Airlines Logo
12:52 pm - 10:07 pm
SAT
-
PWM
8h 15m
1 stop
American Airlines Logo
12:46 pm - 8:25 pm
PWM
-
SAT
8h 39m
1 stop
$367American Airlines
mié., feb. 4 - mié., feb. 11
Delta Logo
5:20 am - 5:16 pm
SAT
-
PWM
10h 56m
2 stops
Delta Logo
6:00 am - 5:22 pm
PWM
-
SAT
12h 22m
2 stops
$378Delta
mié., feb. 4 - mié., feb. 11
American Airlines Logo
1:40 pm - 11:51 pm
SAT
-
PWM
9h 11m
1 stop
American Airlines Logo
5:36 pm - 10:54 pm
PWM
-
SAT
6h 18m
1 stop
$387American Airlines
mar., jun. 16 - mar., jun. 23
American Airlines Logo
12:56 pm - 10:07 pm
SAT
-
PWM
8h 11m
1 stop
American Airlines Logo
12:29 pm - 11:07 pm
PWM
-
SAT
11h 38m
2 stops
$390American Airlines
jue., feb. 5 - jue., feb. 19

United Airlines flights from San Antonio to Portland, Maine

Our best United Airlines deals on San Antonio to Portland, Maine flight tickets
United Airlines
Feb 14
SAT7:00 amSan Antonio
7h 14m
1 stop
PWM3:14 pmPortland
Feb 18
PWM4:15 pmPortland
7h 57m
1 stop
SAT11:12 pmSan Antonio
$407
United Airlines
Feb 14
SAT6:30 amSan Antonio
5h 54m
1 stop
PWM1:24 pmPortland
Feb 18
PWM6:00 amPortland
10h 38m
2 stops
SAT3:38 pmSan Antonio
$412
United Airlines
Feb 14
SAT11:43 amSan Antonio
10h 37m
2 stops
PWM11:20 pmPortland
Feb 18
PWM6:00 amPortland
10h 38m
2 stops
SAT3:38 pmSan Antonio
$418

Southwest flights from San Antonio to Portland, Maine

Our best Southwest deals on San Antonio to Portland, Maine flight tickets
Southwest
May 11
SAT1:25 pmSan Antonio
9h 00m
2 stops
PWM11:25 pmPortland
May 14
PWM2:50 pmPortland
8h 25m
1 stop
SAT10:15 pmSan Antonio
$398
Southwest
May 4
SAT5:00 amSan Antonio
8h 10m
1 stop
PWM2:10 pmPortland
May 8
PWM2:50 pmPortland
9h 40m
2 stops
SAT11:30 pmSan Antonio
$425
Southwest
May 4
SAT1:25 pmSan Antonio
9h 00m
2 stops
PWM11:25 pmPortland
May 8
PWM2:50 pmPortland
9h 40m
2 stops
SAT11:30 pmSan Antonio
$431

momondo Fare Finder

 
Customize your flight search to find flights from San Antonio to Portland, Maine that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated enero 15, 2026.
Use the filters below to find and compare flights from San Antonio to Portland, Maine that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

mié. 2/4

12:52 pm-10:07 pm

1 stop8h 15m

Portland

mié. 2/18

5:40 pm-11:56 pm

1 stop7h 16m

$337

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

mié. 2/4

5:30 am-12:03 pm

1 stop5h 33m

Portland

mié. 2/18

6:00 am-3:23 pm

2 stops10h 23m

$342

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

mié. 2/4

1:40 pm-12:20 am

2 stops9h 40m

Portland

mié. 2/18

6:00 am-3:23 pm

2 stops10h 23m

$348

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

jue. 1/29

6:30 am-9:07 am

1 stop25h 37m

Portland

lun. 2/2

5:06 pm-11:52 pm

2 stops31h 46m

$352

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

mié. 2/4

10:32 am-11:43 pm

2 stops12h 11m

Portland

mié. 2/18

6:00 am-5:04 pm

2 stops12h 04m

$354

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

mié. 2/4

12:52 pm-10:07 pm

1 stop8h 15m

Portland

mié. 2/18

6:00 am-5:04 pm

2 stops12h 04m

$360

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

mié. 2/4

12:52 pm-10:07 pm

1 stop8h 15m

Portland

mié. 2/11

12:46 pm-8:25 pm

1 stop8h 39m

$367

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

mié. 2/4

5:20 am-5:16 pm

2 stops10h 56m

Portland

mié. 2/11

6:00 am-5:22 pm

2 stops12h 22m

$378

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

mar. 6/16

1:40 pm-11:51 pm

1 stop9h 11m

Portland

mar. 6/23

5:36 pm-10:54 pm

1 stop6h 18m

$387

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

jue. 2/5

12:56 pm-10:07 pm

1 stop8h 11m

Portland

jue. 2/19

12:29 pm-11:07 pm

2 stops11h 38m

$390

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
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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 March. Flight prices, which tend to average around $293, 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.

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

As of January 2026, prices for San Antonio to Portland, Maine flights are approximately 3% 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

Fastest flight time

5h 33m

Direct flights

None
The fastest flight from San Antonio to Portland, Maine takes 5h 33m
There are no direct flights from San Antonio to Portland, Maine. There are no popular flight routes from San Antonio to Portland, Maine.
Search flight deals

  • How far is San Antonio to Portland by plane?

    Portland is 1835.4 mi away from San Antonio. Flights usually cover this in 5h 33m, 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
American AirlinesPriceFrom $172Free CancellationRating
7.2
11,136 reviews
Search American Airlines flights
DeltaPriceFrom $286Free CancellationRating
7.9
8,051 reviews
Search Delta flights
United AirlinesPriceFrom $311Free CancellationRating
7.4
9,164 reviews
Search United Airlines flights
SouthwestPriceFrom $347Free CancellationRating
8.0
4,258 reviews
Search Southwest flights

Traveling to a place near Portland?

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

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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