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Cheap flights from San Antonio to Portland from $185

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.
United Airlines Logo
12:50 pm - 8:22 pmSAT  San Antonio-PWM Portland
6h 32m1 stop Newark
United Airlines Logo
8:49 am - 3:13 pmPWM  Portland-SAT San Antonio
7h 24m1 stop Newark
$369United Airlines
Wed, Oct 14 - Wed, Oct 28
United Airlines Logo
12:50 pm - 8:22 pmSAT  San Antonio-PWM Portland
6h 32m1 stop Newark
United Airlines Logo
8:49 am - 3:13 pmPWM  Portland-SAT San Antonio
7h 24m1 stop Newark
$369United Airlines
Wed, Oct 14 - Wed, Oct 28
American Airlines Logo
6:14 am - 3:43 pmSAT  San Antonio-PWM Portland
8h 29m1 stop Washington, D.C. Reagan-National
American Airlines Logo
12:09 pm - 5:10 pmPWM  Portland-SAT San Antonio
6h 01m1 stop Charlotte Douglas
$369American Airlines
Wed, Oct 14 - Wed, Oct 28
Southwest Logo
3:40 pm - 10:40 pmSAT  San Antonio-PWM Portland
6h 00m1 stop Baltimore/Washington
Southwest Logo
6:00 pm - 11:35 pmPWM  Portland-SAT San Antonio
6h 35m1 stop Chicago Midway
$369Southwest
Tue, Oct 13 - Tue, Oct 27
American Airlines Logo
3:09 pm - 11:43 pmSAT  San Antonio-PWM Portland
7h 34m1 stop Chicago O'Hare Intl
American Airlines Logo
7:00 am - 2:52 pmPWM  Portland-SAT San Antonio
8h 52m2 stops Chicago O'Hare Intl Dallas/Fort Worth
$374American Airlines
Wed, Oct 14 - Wed, Oct 28
Southwest Logo
3:40 pm - 10:40 pmSAT  San Antonio-PWM Portland
6h 00m1 stop Baltimore/Washington
Southwest Logo
11:35 am - 8:30 pmPWM  Portland-SAT San Antonio
9h 55m2 stops Nashville Intl Dallas Love Field
$374Southwest
Tue, Oct 13 - Tue, Oct 27
Delta Logo
11:36 am - 11:35 pmSAT  San Antonio-PWM Portland
10h 59m2 stops Detroit Metropolitan Wayne County Atlanta Hartsfield-Jackson
Delta Logo
6:01 am - 3:50 pmPWM  Portland-SAT San Antonio
10h 49m2 stops Atlanta Hartsfield-Jackson Detroit Metropolitan Wayne County
$399Delta
Tue, Oct 13 - Tue, Oct 27
Multiple Airlines Logo
8:21 pm - 9:08 amSAT  San Antonio-PWM Portland
35h 47m2 stops Denver Intl Orlando
Multiple Airlines Logo
5:09 pm - 9:45 amPWM  Portland-SAT San Antonio
17h 36m1 stop Raleigh-Durham
$399Multiple Airlines
Mon, Oct 26 - Sat, Oct 31
Multiple Airlines Logo
8:20 pm - 9:08 amSAT  San Antonio-PWM Portland
35h 48m2 stops Denver Intl Orlando
Multiple Airlines Logo
5:09 pm - 9:45 amPWM  Portland-SAT San Antonio
17h 36m1 stop Raleigh-Durham
$407Multiple Airlines
Wed, Oct 28 - Sat, Oct 31
Delta Logo
5:30 am - 1:02 pmSAT  San Antonio-PWM Portland
6h 32m1 stop Atlanta Hartsfield-Jackson
Delta Logo
11:55 am - 5:34 pmPWM  Portland-SAT San Antonio
6h 39m1 stop Minneapolis St Paul
$445Delta
Tue, Oct 27 - Fri, Oct 30

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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
Oct 13
SAT11:36 amSan Antonio
10h 59m
2 stops
PWM11:35 pmPortland
Oct 27
PWM6:01 amPortland
10h 49m
2 stops
SAT3:50 pmSan Antonio
$399
Delta
Oct 28
SAT5:30 amSan Antonio
6h 32m
1 stop
PWM1:02 pmPortland
Oct 31
PWM4:47 pmPortland
6h 33m
1 stop
SAT10:20 pmSan Antonio
$445
Delta
Oct 27
SAT5:15 amSan Antonio
5h 42m
1 stop
PWM11:57 amPortland
Oct 30
PWM1:52 pmPortland
8h 56m
2 stops
SAT9:48 pmSan Antonio
$450

American Airlines flights from San Antonio to Portland, Maine

Our best American Airlines deals on San Antonio to Portland, Maine flight tickets
American Airlines
Oct 13
SAT2:05 pmSan Antonio
8h 31m
2 stops
PWM11:36 pmPortland
Oct 27
PWM3:57 pmPortland
7h 04m
1 stop
SAT10:01 pmSan Antonio
$422
American Airlines
Oct 2
SAT2:35 pmSan Antonio
8h 12m
1 stop
PWM11:47 pmPortland
Oct 6
PWM3:57 pmPortland
7h 04m
1 stop
SAT10:01 pmSan Antonio
$425
American Airlines
Oct 13
SAT2:05 pmSan Antonio
8h 31m
2 stops
PWM11:36 pmPortland
Oct 27
PWM11:57 amPortland
8h 17m
2 stops
SAT7:14 pmSan Antonio
$427

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

San AntonioPortland

SAT San Antonio - PWM Portland

SATPWM

San Antonio

Wed 10/14

12:50 pm-8:22 pm

1 stop6h 32m

Portland

Wed 10/28

8:49 am-3:13 pm

1 stop7h 24m

$369

San AntonioPortland

SAT San Antonio - PWM Portland

SATPWM

San Antonio

Wed 10/14

12:50 pm-8:22 pm

1 stop6h 32m

Portland

Wed 10/28

8:49 am-3:13 pm

1 stop7h 24m

$369

San AntonioPortland

SAT San Antonio - PWM Portland

SATPWM

San Antonio

Wed 10/14

6:14 am-3:43 pm

1 stop8h 29m

Portland

Wed 10/28

12:09 pm-5:10 pm

1 stop6h 01m

$369
Quickest round-trip

San AntonioPortland

SAT San Antonio - PWM Portland

SATPWM

San Antonio

Tue 10/13

3:40 pm-10:40 pm

1 stop6h 00m

Portland

Tue 10/27

6:00 pm-11:35 pm

1 stop6h 35m

$369

San AntonioPortland

SAT San Antonio - PWM Portland

SATPWM

San Antonio

Wed 10/14

3:09 pm-11:43 pm

1 stop7h 34m

Portland

Wed 10/28

7:00 am-2:52 pm

2 stops8h 52m

$374

San AntonioPortland

SAT San Antonio - PWM Portland

SATPWM

San Antonio

Tue 10/13

3:40 pm-10:40 pm

1 stop6h 00m

Portland

Tue 10/27

11:35 am-8:30 pm

2 stops9h 55m

$374

San AntonioPortland

SAT San Antonio - PWM Portland

SATPWM

San Antonio

Tue 10/13

11:36 am-11:35 pm

2 stops10h 59m

Portland

Tue 10/27

6:01 am-3:50 pm

2 stops10h 49m

$399

San AntonioPortland

SAT San Antonio - PWM Portland

SATPWM

San Antonio

Mon 10/26

8:21 pm-9:08 am

2 stops35h 47m

Portland

Sat 10/31

5:09 pm-9:45 am

1 stop17h 36m

$399

San AntonioPortland

SAT San Antonio - PWM Portland

SATPWM

San Antonio

Wed 10/28

8:20 pm-9:08 am

2 stops35h 48m

Portland

Sat 10/31

5:09 pm-9:45 am

1 stop17h 36m

$407

San AntonioPortland

SAT San Antonio - PWM Portland

SATPWM

San Antonio

Tue 10/27

5:30 am-1:02 pm

1 stop6h 32m

Portland

Fri 10/30

11:55 am-5:34 pm

1 stop6h 39m

$445

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 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 $296.

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

As of September 2026, prices for San Antonio to Portland, Maine flights are approximately 52% 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

$185

Fastest flight time

6h 09m

Direct flights

None
The best one-way flight to Portland, Maine from San Antonio in the past 72 hours is $185. The best round-trip flight deal from San Antonio to Portland, Maine found on momondo in the last 72 hours is $369.
The fastest flight from San Antonio to Portland, Maine takes 6h 09m
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 09m, 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
United AirlinesPriceFrom $218Free CancellationRating
7.4
10,175 reviews
Search United Airlines flights
American AirlinesPriceFrom $294Free CancellationRating
7.1
12,042 reviews
Search American Airlines flights
DeltaPriceFrom $318Free CancellationRating
7.8
8,548 reviews
Search Delta flights
SouthwestPriceFrom $378Free CancellationRating
8.0
4,195 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
Lewiston
Brunswick
Freeport
Auburn
Gorham
Conway
Bartlett
Windham
Bath
Intervale
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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