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Cheap flights from San Antonio to Portland from $141

1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

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
1:18 pm - 9:29 pmSAT  San Antonio-PWM Portland
7h 11m1 stop Charlotte Douglas
American Airlines Logo
7:00 am - 12:38 pmPWM  Portland-SAT San Antonio
6h 38m1 stop Charlotte Douglas
$281American Airlines
Wed, Jan 6 - Sat, Jan 9
Delta Logo
1:45 pm - 11:33 pmSAT  San Antonio-PWM Portland
8h 48m1 stop Atlanta Hartsfield-Jackson
Delta Logo
4:53 pm - 10:57 pmPWM  Portland-SAT San Antonio
7h 04m1 stop Detroit Metropolitan Wayne County
$281Delta
Tue, Dec 1 - Sat, Dec 5
United Airlines Logo
6:10 am - 1:34 pmSAT  San Antonio-PWM Portland
6h 24m1 stop Newark
United Airlines Logo
2:15 pm - 11:14 pmPWM  Portland-SAT San Antonio
9h 59m2 stops Washington, D.C. Dulles Intl Chicago O'Hare Intl
$286United Airlines
Wed, Jan 6 - Sat, Jan 9
Delta Logo
1:45 pm - 11:33 pmSAT  San Antonio-PWM Portland
8h 48m1 stop Atlanta Hartsfield-Jackson
Delta Logo
6:00 am - 5:34 pmPWM  Portland-SAT San Antonio
12h 34m2 stops New York John F Kennedy Intl Atlanta Hartsfield-Jackson
$286Delta
Tue, Dec 1 - Sat, Dec 5
American Airlines Logo
5:00 am - 5:14 pmSAT  San Antonio-PWM Portland
11h 14m2 stops Dallas/Fort Worth Philadelphia
American Airlines Logo
6:13 am - 4:30 pmPWM  Portland-SAT San Antonio
11h 17m2 stops Washington, D.C. Reagan-National Dallas/Fort Worth
$292American Airlines
Wed, Jan 6 - Sat, Jan 9
American Airlines Logo
2:03 pm - 10:52 pmSAT  San Antonio-PWM Portland
7h 49m2 stops Dallas/Fort Worth Charlotte Douglas
American Airlines Logo
10:55 am - 8:59 pmPWM  Portland-SAT San Antonio
11h 04m2 stops Philadelphia Dallas/Fort Worth
$322American Airlines
Tue, Dec 1 - Sat, Dec 5
Delta Logo
4:25 pm - 11:23 pmSAT  San Antonio-PWM Portland
5h 58m1 stop Atlanta Hartsfield-Jackson
Delta Logo
12:50 pm - 12:28 amPWM  Portland-SAT San Antonio
12h 38m2 stops Detroit Metropolitan Wayne County Atlanta Hartsfield-Jackson
$325Delta
Mon, Feb 22 - Fri, Feb 26
United Airlines Logo
7:00 am - 2:27 pmSAT  San Antonio-PWM Portland
6h 27m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
5:08 pm - 11:38 pmPWM  Portland-SAT San Antonio
7h 30m1 stop Chicago O'Hare Intl
$401United Airlines
Tue, Nov 10 - Wed, Nov 11
Southwest Logo
5:35 pm - 11:55 pmSAT  San Antonio-PWM Portland
5h 20m1 stop Baltimore/Washington
Southwest Logo
10:25 am - 7:10 pmPWM  Portland-SAT San Antonio
9h 45m2 stops Baltimore/Washington Dallas Love Field
$512Southwest
Wed, Dec 23 - Thu, Dec 31
Southwest Logo
1:25 pm - 11:55 pmSAT  San Antonio-PWM Portland
9h 30m2 stops Nashville Intl Baltimore/Washington
Southwest Logo
10:25 am - 7:10 pmPWM  Portland-SAT San Antonio
9h 45m2 stops Baltimore/Washington Dallas Love Field
$517Southwest
Wed, Dec 23 - Thu, Dec 31

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Delta flights from San Antonio to Portland, Maine

Our best Delta deals on San Antonio to Portland, Maine flight tickets
Delta
Dec 1
SAT1:45 pmSan Antonio
8h 48m
1 stop
PWM11:33 pmPortland
Dec 5
PWM4:53 pmPortland
7h 04m
1 stop
SAT10:57 pmSan Antonio
$281
Delta
Dec 1
SAT1:45 pmSan Antonio
8h 48m
1 stop
PWM11:33 pmPortland
Dec 5
PWM6:00 amPortland
12h 34m
2 stops
SAT5:34 pmSan Antonio
$286
Delta
Nov 17
SAT6:30 amSan Antonio
5h 31m
1 stop
PWM1:01 pmPortland
Nov 27
PWM6:27 amPortland
8h 53m
2 stops
SAT2:20 pmSan Antonio
$325

United Airlines flights from San Antonio to Portland, Maine

Our best United Airlines deals on San Antonio to Portland, Maine flight tickets
United Airlines
Nov 10
SAT7:00 amSan Antonio
6h 27m
1 stop
PWM2:27 pmPortland
Nov 11
PWM5:08 pmPortland
7h 30m
1 stop
SAT11:38 pmSan Antonio
$401
United Airlines
Nov 10
SAT1:15 pmSan Antonio
7h 36m
1 stop
PWM9:51 pmPortland
Nov 11
PWM5:50 amPortland
10h 48m
2 stops
SAT3:38 pmSan Antonio
$406
United Airlines
Nov 10
SAT1:15 pmSan Antonio
9h 06m
2 stops
PWM11:21 pmPortland
Nov 11
PWM5:50 amPortland
10h 48m
2 stops
SAT3:38 pmSan Antonio
$411

momondo Fare Finder

 
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 San Antonio - PWM Portland

SATPWM

San Antonio

Wed 1/6

1:18 pm-9:29 pm

1 stop7h 11m

Portland

Sat 1/9

7:00 am-12:38 pm

1 stop6h 38m

$281

San AntonioPortland

SAT San Antonio - PWM Portland

SATPWM

San Antonio

Tue 12/1

1:45 pm-11:33 pm

1 stop8h 48m

Portland

Sat 12/5

4:53 pm-10:57 pm

1 stop7h 04m

$281

San AntonioPortland

SAT San Antonio - PWM Portland

SATPWM

San Antonio

Wed 1/6

6:10 am-1:34 pm

1 stop6h 24m

Portland

Sat 1/9

2:15 pm-11:14 pm

2 stops9h 59m

$286

San AntonioPortland

SAT San Antonio - PWM Portland

SATPWM

San Antonio

Tue 12/1

1:45 pm-11:33 pm

1 stop8h 48m

Portland

Sat 12/5

6:00 am-5:34 pm

2 stops12h 34m

$286

San AntonioPortland

SAT San Antonio - PWM Portland

SATPWM

San Antonio

Wed 1/6

5:00 am-5:14 pm

2 stops11h 14m

Portland

Sat 1/9

6:13 am-4:30 pm

2 stops11h 17m

$292

San AntonioPortland

SAT San Antonio - PWM Portland

SATPWM

San Antonio

Tue 12/1

2:03 pm-10:52 pm

2 stops7h 49m

Portland

Sat 12/5

10:55 am-8:59 pm

2 stops11h 04m

$322

San AntonioPortland

SAT San Antonio - PWM Portland

SATPWM

San Antonio

Mon 2/22

4:25 pm-11:23 pm

1 stop5h 58m

Portland

Fri 2/26

12:50 pm-12:28 am

2 stops12h 38m

$325

San AntonioPortland

SAT San Antonio - PWM Portland

SATPWM

San Antonio

Tue 11/10

7:00 am-2:27 pm

1 stop6h 27m

Portland

Wed 11/11

5:08 pm-11:38 pm

1 stop7h 30m

$401

San AntonioPortland

SAT San Antonio - PWM Portland

SATPWM

San Antonio

Wed 12/23

5:35 pm-11:55 pm

1 stop5h 20m

Portland

Thu 12/31

10:25 am-7:10 pm

2 stops9h 45m

$512

San AntonioPortland

SAT San Antonio - PWM Portland

SATPWM

San Antonio

Wed 12/23

1:25 pm-11:55 pm

2 stops9h 30m

Portland

Thu 12/31

10:25 am-7:10 pm

2 stops9h 45m

$517

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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?

Prices are currently low for flights on this route.

Typical prices usually range from $428 to $464.
The lowest price recently found on this route was $281.

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 April is also cheap. Prices for this month can be found on momondo for an average of $377.

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

As of October 2026, prices for San Antonio to Portland, Maine flights are approximately 5% 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

$141

Fastest flight time

5h 31m

Direct flights

None
The best one-way flight to Portland, Maine from San Antonio in the past 72 hours is $141. The best round-trip flight deal from San Antonio to Portland, Maine found on momondo in the last 72 hours is $281.
The fastest flight from San Antonio to Portland, Maine takes 5h 31m
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 31m, 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 $318Free CancellationRating
7.8
8,659 reviews
Search Delta flights
American AirlinesPriceFrom $362Free CancellationRating
7.0
12,183 reviews
Search American Airlines flights
SouthwestPriceFrom $378Free CancellationRating
7.9
4,208 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
Jackson
Boothbay Harbor
Brunswick
Lewiston
Freeport
Conway
Auburn
Gorham
Bartlett
Bath
Windham
Intervale
Georgetown
Oxford
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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