Portland

$183+ Cheap flights from San Antonio to Portland, ME (SAT - PWM)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/23. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — PWM
may. 28 — jun. 41
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Cheap flight deals from San Antonio to Portland

Cheapest flights from San Antonio to Portland
Explore the most affordable flight options available from San Antonio to Portland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on abril 28, 2026.

This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 6/35:20 am
SAT
-
PWM
1 stop5h 35m
Delta
mié. 6/34:48 pm
PWM
-
SAT
1 stop6h 39m
Delta
Deal found 4/27$337
This Delta deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 6/35:20 am
SAT
-
PWM
1 stop5h 35m
Delta
jue. 6/42:05 pm
PWM
-
SAT
1 stop7h 23m
Delta
Deal found 4/27$346
This Delta deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 6/511:50 am
SAT
-
PWM
2 stops10h 19m
Delta
lun. 6/86:00 am
PWM
-
SAT
1 stop6h 10m
Delta
Deal found 4/23$349
This American Airlines deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/291:40 pm
SAT
-
PWM
1 stop9h 11m
American Airlines
mar. 6/25:36 pm
PWM
-
SAT
1 stop6h 30m
American Airlines
Deal found 4/26$372
This Delta deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/292:27 pm
SAT
-
PWM
1 stop7h 42m
Delta
mar. 6/21:18 pm
PWM
-
SAT
2 stops10h 09m
Delta
Deal found 4/26$377
This American Airlines deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/231:40 pm
SAT
-
PWM
1 stop7h 06m
American Airlines
dom. 5/245:36 pm
PWM
-
SAT
1 stop7h 23m
American Airlines
Deal found 4/24$381
This American Airlines deal was found by Cheapflights users on 4/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 6/41:40 pm
SAT
-
PWM
1 stop7h 06m
American Airlines
mar. 6/95:36 pm
PWM
-
SAT
1 stop7h 23m
American Airlines
Deal found 4/25$382
This Delta deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/292:27 pm
SAT
-
PWM
1 stop7h 42m
Delta
lun. 6/112:50 pm
PWM
-
SAT
2 stops12h 23m
Delta
Deal found 4/26$386

Find flight deals from San Antonio to Portland

Discover tips and strategies to find the most affordable flight options for your journey from San Antonio (SAT) to Portland (PWM). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated abril 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$337
(Delta)

One-way from

$183
(American Airlines)

Popular in

December

Cheapest in

September

Average price

$372
Provider with most accurate pricing for San Antonio-Portland flight deals.
Provider most trusted by Cheapflights users for San Antonio-Portland flights.
From San Antonio to Portland
One-way flight from San Antonio to Portland
Highest demand for flights based on searches. 19% potential increase in price ($116 potential increase over avg. RT price).
Cheapest flight prices on average. 6% potential price decrease ($27 potential savings vs. average RT price).
Average for round-trip flights in April 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from San Antonio to Portland 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, Cheapflights users made 2,558,603 searches. Data last updated abril 28, 2026.
Use the filters below to find and compare flights from San Antonio to Portland 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

mié. 6/3

5:20 am-11:55 am

1 stop5h 35m

Portland

mié. 6/3

4:48 pm-10:27 pm

1 stop6h 39m

$337

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

vie. 6/5

11:50 am-11:09 pm

2 stops10h 19m

Portland

lun. 6/8

6:00 am-11:10 am

1 stop6h 10m

$349

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

mié. 6/3

2:27 pm-12:43 am

2 stops9h 16m

Portland

jue. 6/4

4:48 pm-10:27 pm

1 stop6h 39m

$351

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

jue. 6/4

2:27 pm-11:09 pm

1 stop7h 42m

Portland

mar. 6/9

6:00 am-5:32 pm

2 stops12h 32m

$423

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

dom. 5/31

4:00 pm-11:09 pm

1 stop6h 09m

Portland

mar. 6/9

6:00 am-5:32 pm

2 stops12h 32m

$433

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

mar. 10/13

6:50 am-2:55 pm

1 stop7h 05m

Portland

sáb. 10/17

5:40 am-12:15 pm

1 stop7h 35m

$437

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

vie. 7/10

4:12 pm-11:14 pm

1 stop6h 02m

Portland

jue. 7/16

6:57 pm-12:24 am

1 stop6h 27m

$467

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

lun. 7/13

11:29 am-11:30 pm

2 stops11h 01m

Portland

vie. 7/24

6:00 am-11:09 am

1 stop6h 09m

$472
Cheapest one-way

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

sáb. 5/23

1:40 pm-9:46 pm

1 stop7h 06m

$183
Quickest one-way

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

mié. 7/15

7:23 am-2:16 pm

1 stop5h 53m

$204

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

Showing 1-10 of 19 resultsSorted by cheapest first
1
2

Compare providers for flights from San Antonio to Portland

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Antonio to Portland in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
MytripPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on San Antonio-Portland, Maine flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Antonio-Portland, Maine flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Antonio-Portland, Maine flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on San Antonio-Portland, Maine flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Antonio-Portland, Maine flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from San Antonio to Portland

Have a flexible travel schedule? Discover the best time to fly to Portland from San Antonio with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Antonio to Portland

How much does it cost to fly round-trip from San Antonio to Portland, Maine?

Reviews of airlines servicing Portland

Get insights into the airlines that provide service to Portland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portland. Reviews last updated abril 28, 2026.
Get a feel of what it's like to fly with Southwest,Delta, andUnited Airlines from San Antonio to Portland by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Entertainment

7.5

Boarding

8.1

Crew

8.6

Overall

8.0

Comfort

8.0

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

Related info for your journey

Find useful and relevant information for your journey from San Antonio to Portland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • How long is the flight from San Antonio to Portland, Maine?

    For as low as $337, Delta can have you in Portland, Maine from San Antonio in 5h 35m. Airlines will cover a distance of 1827 mi.

  • What are the cheapest airlines flying from San Antonio to Portland, Maine round-trip?

    Currently priced at $172, American Airlines will fly you from San Antonio to Portland, Maine and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Delta and United Airlines - these airlines can fly you to your destination from $296 and $311, respectively. You may be able to fly from San Antonio to Portland, Maine for 63% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from San Antonio to Portland, Maine one-way?

    To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at $86. United Airlines flights start at $134 while deals on Delta start at $148 one-way.

  • Can I find deals for flights from San Antonio to Portland that include hotel bookings?

    Yes. In addition to deals on San Antonio to Portland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Antonio to Portland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Antonio to Portland.

  • Can I find deals for business class flights from San Antonio to Portland?

    Yes. Cheapflights offers flight deals from San Antonio to Portland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
North Conway
Brunswick
Lewiston
Conway

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Top 4 airlines flying from San Antonio to Portland

Discover the top 4 airlines that operate flights from San Antonio to Portland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated abril 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$172Average$354FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$218Average$396FlexibilityNo cancel feeOn-time69%
DeltaCheapest$296Average$387FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$378Average$548FlexibilityNo cancel feeOn-time63%

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