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Cheap flights from San Antonio to Portland from $169

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 5/19. 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

Enter your travel dates to find the best prices.
Delta Logo
5:20 am - 11:55 am
SAT
-
PWM
5h 35m
1 stop
Delta Logo
4:48 pm - 10:27 pm
PWM
-
SAT
6h 39m
1 stop
$277Delta
Wed, May 27 - Wed, May 27
Delta Logo
5:20 am - 11:55 am
SAT
-
PWM
5h 35m
1 stop
Delta Logo
4:48 pm - 12:44 am
PWM
-
SAT
8h 56m
2 stops
$282Delta
Wed, May 27 - Wed, May 27
Delta Logo
5:25 am - 1:10 pm
SAT
-
PWM
6h 45m
1 stop
Delta Logo
6:00 am - 1:31 pm
PWM
-
SAT
8h 31m
1 stop
$297Delta
Wed, May 27 - Sat, May 30
Delta Logo
5:20 am - 11:55 am
SAT
-
PWM
5h 35m
1 stop
Delta Logo
6:02 am - 4:01 pm
PWM
-
SAT
10h 59m
2 stops
$302Delta
Wed, May 27 - Sat, May 30
Delta Logo
5:25 am - 5:11 pm
SAT
-
PWM
10h 46m
2 stops
Delta Logo
12:50 pm - 12:44 am
PWM
-
SAT
12h 54m
2 stops
$307Delta
Wed, May 27 - Sat, May 30
Delta Logo
5:25 am - 1:10 pm
SAT
-
PWM
6h 45m
1 stop
Delta Logo
6:00 am - 11:13 am
PWM
-
SAT
6h 13m
1 stop
$317Delta
Thu, May 28 - Sat, May 30
Delta Logo
5:25 am - 1:10 pm
SAT
-
PWM
6h 45m
1 stop
Delta Logo
12:50 pm - 12:44 am
PWM
-
SAT
12h 54m
2 stops
$322Delta
Thu, May 28 - Sat, May 30
Delta Logo
5:25 am - 1:10 pm
SAT
-
PWM
6h 45m
1 stop
Delta Logo
4:48 pm - 10:27 pm
PWM
-
SAT
6h 39m
1 stop
$324Delta
Wed, May 27 - Fri, May 29
Delta Logo
11:50 am - 11:18 pm
SAT
-
PWM
10h 28m
2 stops
Delta Logo
6:02 am - 4:01 pm
PWM
-
SAT
10h 59m
2 stops
$327Delta
Thu, May 28 - Sat, May 30
Delta Logo
5:25 am - 5:11 pm
SAT
-
PWM
10h 46m
2 stops
Delta Logo
6:00 am - 1:32 pm
PWM
-
SAT
8h 32m
1 stop
$329Delta
Wed, May 27 - Fri, May 29

United Airlines flights from San Antonio to Portland, Maine

Our best United Airlines deals on San Antonio to Portland, Maine flight tickets
United Airlines
Jun 2
SAT6:40 amSan Antonio
6h 46m
1 stop
PWM2:26 pmPortland
Jun 3
PWM6:00 amPortland
7h 30m
1 stop
SAT12:30 pmSan Antonio
$403
United Airlines
May 12
SAT2:00 pmSan Antonio
6h 19m
1 stop
PWM9:19 pmPortland
May 16
PWM4:50 pmPortland
7h 04m
1 stop
SAT10:54 pmSan Antonio
$437
United Airlines
May 12
SAT12:29 pmSan Antonio
10h 00m
2 stops
PWM11:29 pmPortland
May 16
PWM4:50 pmPortland
7h 04m
1 stop
SAT10:54 pmSan Antonio
$442

American Airlines flights from San Antonio to Portland, Maine

Our best American Airlines deals on San Antonio to Portland, Maine flight tickets
American Airlines
May 23
SAT1:40 pmSan Antonio
7h 06m
1 stop
PWM9:46 pmPortland
May 27
PWM5:36 pmPortland
6h 30m
1 stop
SAT11:06 pmSan Antonio
$335
American Airlines
Jun 4
SAT1:40 pmSan Antonio
7h 06m
1 stop
PWM9:46 pmPortland
Jun 9
PWM5:36 pmPortland
7h 23m
1 stop
SAT11:59 pmSan Antonio
$357
American Airlines
Jun 23
SAT8:00 amSan Antonio
8h 07m
1 stop
PWM5:07 pmPortland
Jul 2
PWM5:36 pmPortland
16h 10m
1 stop
SAT8:46 amSan Antonio
$436

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 April 23, 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

Cheapest round-trip
Quickest round-trip

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

Wed 5/27

5:20 am-11:55 am

1 stop5h 35m

Portland

Wed 5/27

4:48 pm-10:27 pm

1 stop6h 39m

$277

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

Wed 5/27

5:20 am-11:55 am

1 stop5h 35m

Portland

Wed 5/27

4:48 pm-12:44 am

2 stops8h 56m

$282

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

Wed 5/27

5:25 am-1:10 pm

1 stop6h 45m

Portland

Sat 5/30

6:00 am-1:31 pm

1 stop8h 31m

$297

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

Wed 5/27

5:20 am-11:55 am

1 stop5h 35m

Portland

Sat 5/30

6:02 am-4:01 pm

2 stops10h 59m

$302

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

Wed 5/27

5:25 am-5:11 pm

2 stops10h 46m

Portland

Sat 5/30

12:50 pm-12:44 am

2 stops12h 54m

$307

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

Thu 5/28

5:25 am-1:10 pm

1 stop6h 45m

Portland

Sat 5/30

6:00 am-11:13 am

1 stop6h 13m

$317

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

Thu 5/28

5:25 am-1:10 pm

1 stop6h 45m

Portland

Sat 5/30

12:50 pm-12:44 am

2 stops12h 54m

$322

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

Wed 5/27

5:25 am-1:10 pm

1 stop6h 45m

Portland

Fri 5/29

4:48 pm-10:27 pm

1 stop6h 39m

$324

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

Thu 5/28

11:50 am-11:18 pm

2 stops10h 28m

Portland

Sat 5/30

6:02 am-4:01 pm

2 stops10h 59m

$327

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

Wed 5/27

5:25 am-5:11 pm

2 stops10h 46m

Portland

Fri 5/29

6:00 am-1:32 pm

1 stop8h 32m

$329

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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 typical price of a round-trip flight between San Antonio and Portland, Maine?

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

As of April 2026, prices for San Antonio to Portland, Maine flights are approximately 53% cheaper 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 40m

Direct flights

None
The fastest flight from San Antonio to Portland, Maine takes 5h 40m
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

Frequently asked questions about flying 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 40m, 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
7.1
11,659 reviews
Search American Airlines flights
DeltaPriceFrom $296Free CancellationRating
7.9
8,438 reviews
Search Delta flights
United AirlinesPriceFrom $311Free CancellationRating
7.4
9,637 reviews
Search United Airlines flights
SouthwestPriceFrom $378Free CancellationRating
8.0
4,327 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
Bath
Oxford
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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