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Cheap flights from San Antonio to Portland from $176

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 9/4. 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
1 adult, Economy, 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
2:40 pm - 11:05 pm
SAT
-
PWM
7h 25m
1 stop
Delta Logo
6:00 am - 1:35 pm
PWM
-
SAT
8h 35m
1 stop
$371Delta
Wed, Jun 24 - Tue, Jun 30
American Airlines Logo
5:01 am - 2:16 pm
SAT
-
PWM
8h 15m
2 stops
American Airlines Logo
2:30 pm - 10:16 pm
PWM
-
SAT
8h 46m
1 stop
$376American Airlines
Tue, Jul 21 - Wed, Jul 29
Southwest Logo
9:25 am - 9:10 pm
SAT
-
PWM
10h 45m
2 stops
Southwest Logo
5:45 am - 2:35 pm
PWM
-
SAT
9h 50m
2 stops
$381Southwest
Tue, Aug 11 - Tue, Sep 1
Delta Logo
5:15 am - 12:10 pm
SAT
-
PWM
5h 55m
1 stop
Delta Logo
6:05 am - 12:26 pm
PWM
-
SAT
7h 21m
1 stop
$387Delta
Tue, Sep 15 - Mon, Sep 21
Delta Logo
10:38 am - 11:30 pm
SAT
-
PWM
11h 52m
2 stops
Delta Logo
6:00 am - 1:38 pm
PWM
-
SAT
8h 38m
2 stops
$391Delta
Tue, Jul 21 - Wed, Jul 29
Delta Logo
4:15 pm - 11:25 pm
SAT
-
PWM
6h 10m
1 stop
Delta Logo
6:02 am - 3:09 pm
PWM
-
SAT
10h 07m
2 stops
$392Delta
Tue, Sep 15 - Mon, Sep 21
Delta Logo
5:15 am - 4:49 pm
SAT
-
PWM
10h 34m
2 stops
Delta Logo
6:02 am - 4:58 pm
PWM
-
SAT
11h 56m
2 stops
$397Delta
Tue, Sep 15 - Mon, Sep 21
Delta Logo
10:59 am - 11:59 pm
SAT
-
PWM
12h 00m
2 stops
Delta Logo
6:02 am - 12:15 pm
PWM
-
SAT
7h 13m
1 stop
$402Delta
Tue, Sep 15 - Mon, Sep 21
Delta Logo
2:43 pm - 11:13 pm
SAT
-
PWM
7h 30m
1 stop
Delta Logo
4:47 pm - 10:34 pm
PWM
-
SAT
6h 47m
1 stop
$403Delta
Thu, Aug 13 - Mon, Aug 31
Delta Logo
2:40 pm - 11:05 pm
SAT
-
PWM
7h 25m
1 stop
Delta Logo
6:57 pm - 12:33 am
PWM
-
SAT
6h 36m
1 stop
$405Delta
Wed, Jun 24 - Tue, Jun 30

Southwest flights from San Antonio to Portland, Maine

Our best Southwest deals on San Antonio to Portland, Maine flight tickets
Southwest
Aug 19
SAT2:35 pmSan Antonio
5h 35m
1 stop
PWM9:10 pmPortland
Aug 26
PWM10:30 amPortland
8h 30m
1 stop
SAT6:00 pmSan Antonio
$407
Southwest
Aug 19
SAT11:30 amSan Antonio
9h 35m
2 stops
PWM10:05 pmPortland
Aug 26
PWM5:45 amPortland
6h 15m
1 stop
SAT11:00 amSan Antonio
$412
Southwest
Aug 19
SAT11:30 amSan Antonio
9h 35m
2 stops
PWM10:05 pmPortland
Aug 26
PWM5:45 amPortland
9h 50m
2 stops
SAT2:35 pmSan Antonio
$417

Breeze Airways flights from San Antonio to Portland, Maine

Our best Breeze Airways deals on San Antonio to Portland, Maine flight tickets
Breeze Airways
Sep 5
SAT5:38 pmSan Antonio
38h 34m
2 stops
PWM9:12 amPortland
Sep 12
PWM5:09 pmPortland
16h 36m
1 stop
SAT8:45 amSan Antonio
$423
Breeze Airways
Jun 15
SAT11:30 amSan Antonio
26h 01m
3 stops
PWM2:31 pmPortland
Jun 19
PWM6:13 pmPortland
23h 00m
3 stops
SAT4:13 pmSan Antonio
$1,035
Breeze Airways
Jun 20
SAT4:53 pmSan Antonio
20h 33m
3 stops
PWM2:26 pmPortland
Jun 23
PWM3:16 pmPortland
25h 57m
3 stops
SAT4:13 pmSan Antonio
$1,283

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 June 7, 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

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

Wed 6/24

2:40 pm-11:05 pm

1 stop7h 25m

Portland

Tue 6/30

6:00 am-1:35 pm

1 stop8h 35m

$371

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

Tue 7/21

5:01 am-2:16 pm

2 stops8h 15m

Portland

Wed 7/29

2:30 pm-10:16 pm

1 stop8h 46m

$376

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

Tue 8/11

9:25 am-9:10 pm

2 stops10h 45m

Portland

Tue 9/1

5:45 am-2:35 pm

2 stops9h 50m

$381
Quickest round-trip

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

Tue 9/15

5:15 am-12:10 pm

1 stop5h 55m

Portland

Mon 9/21

6:05 am-12:26 pm

1 stop7h 21m

$387

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

Tue 7/21

10:38 am-11:30 pm

2 stops11h 52m

Portland

Wed 7/29

6:00 am-1:38 pm

2 stops8h 38m

$391

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

Tue 9/15

4:15 pm-11:25 pm

1 stop6h 10m

Portland

Mon 9/21

6:02 am-3:09 pm

2 stops10h 07m

$392

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

Tue 9/15

5:15 am-4:49 pm

2 stops10h 34m

Portland

Mon 9/21

6:02 am-4:58 pm

2 stops11h 56m

$397

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

Tue 9/15

10:59 am-11:59 pm

2 stops12h 00m

Portland

Mon 9/21

6:02 am-12:15 pm

1 stop7h 13m

$402

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

Thu 8/13

2:43 pm-11:13 pm

1 stop7h 30m

Portland

Mon 8/31

4:47 pm-10:34 pm

1 stop6h 47m

$403

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

Wed 6/24

2:40 pm-11:05 pm

1 stop7h 25m

Portland

Tue 6/30

6:57 pm-12:33 am

1 stop6h 36m

$405

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?

What is the cheapest month to fly to Portland, Maine?

The cheapest month to fly to Portland, Maine from San Antonio is in January. Flight prices, which tend to average around $0, 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 January, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $339.

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

As of June 2026, prices for San Antonio to Portland, Maine flights are approximately 27% 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

6h 10m

Direct flights

None
The fastest flight from San Antonio to Portland, Maine takes 6h 10m
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 6h 10m, 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
11,649 reviews
Search American Airlines flights
United AirlinesPriceFrom $218Free CancellationRating
7.4
9,777 reviews
Search United Airlines flights
DeltaPriceFrom $296Free CancellationRating
7.9
8,396 reviews
Search Delta flights
SouthwestPriceFrom $365Free CancellationRating
8.0
4,257 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
Lewiston
Freeport
Conway
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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