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$149+ 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 7/15. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — PWM
Apr 20 — Apr 271
Sun 4/20
Sun 4/27
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from San Antonio to Portland are usually found in March or April, booked 69 days in advance, depart on a Tuesday or Monday and return on a Wednesday

Cheap 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 April 15, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$297
(American Airlines)

One-way from

$149
(Delta)

Popular in

February

Cheapest in

March

Average price

$356
Provider with most accurate pricing for San Antonio-Portland flight deals.
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Provider most trusted by Cheapflights users for San Antonio-Portland flights.
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From San Antonio to Portland
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One-way flight from San Antonio to Portland
Search Deals
High demand for flights, 6% potential price rise
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Cheapest flight prices on average. 4% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find 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 April 15, 2025.

This American Airlines deal was found by Cheapflights users on 4/14. 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.
Wed 8/206:35 amSAT - PWM
1 stop7h 33mAmerican Airlines
Wed 9/35:18 pmPWM - SAT
1 stop5h 51mAmerican Airlines
Deal found 4/14$297
This Delta deal was found by Cheapflights users on 4/14. 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.
Wed 8/208:00 amSAT - PWM
1 stop8h 59mDelta
Wed 9/36:30 amPWM - SAT
2 stops9h 45mDelta
Deal found 4/14$302
This Southwest deal was found by Cheapflights users on 4/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/113:50 pmSAT - PWM
1 stop6h 20mSouthwest
Mon 8/253:20 pmPWM - SAT
1 stop9h 05mSouthwest
Deal found 4/14$351
This United Airlines deal was found by Cheapflights users on 4/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/112:15 pmSAT - PWM
2 stops8h 44mUnited Airlines
Mon 8/252:14 pmPWM - SAT
2 stops9h 44mUnited Airlines
Deal found 4/14$386
This Mytrip deal was found by Cheapflights users on 4/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/141:27 pmSAT - PWM
3 stops29h 00mMultiple Airlines
Sun 5/188:07 pmPWM - SAT
2 stops27h 44mMultiple Airlines
Deal found 4/15$510

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 April 15, 2025.
Use the filters below to find and compare flights from San Antonio to Portland that are best for you.

Fly from

San Antonio

Fly to

Portland

Route

Depart

Return

Price

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

Wed 8/20

6:35 am-3:08 pm

1 stop7h 33m

Portland

Wed 9/3

5:18 pm-10:09 pm

1 stop5h 51m

$297

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

Wed 8/20

8:00 am-5:59 pm

1 stop8h 59m

Portland

Wed 9/3

6:30 am-3:15 pm

2 stops9h 45m

$302

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

Mon 8/11

3:50 pm-11:10 pm

1 stop6h 20m

Portland

Mon 8/25

3:20 pm-11:25 pm

1 stop9h 05m

$351

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

Mon 8/11

2:15 pm-11:59 pm

2 stops8h 44m

Portland

Mon 8/25

2:14 pm-10:58 pm

2 stops9h 44m

$386

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

Wed 5/14

1:27 pm-7:27 pm

3 stops29h 00m

Portland

Sun 5/18

8:07 pm-10:51 pm

2 stops27h 44m

$510

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

Tue 7/15

2:10 pm-11:59 pm

1 stop8h 49m

$149

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

Sun 4/20

9:13 am-2:10 pm

1 stop27h 57m

$179

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

Sun 5/25

6:15 am-1:18 pm

1 stop6h 03m

$190

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

Sun 5/25

6:45 am-11:57 pm

3 stops16h 12m

$337

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

Sun 4/20

7:25 pm-11:41 am

2 stops15h 16m

$373

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

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*2 stars
eDreamsPrice Accuracy3 starsTrust 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 eDreams the most. eDreams 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 far ahead should I book a flight from San Antonio to Portland, Maine?

Use this chart to determine the optimal time to book a round-trip flight from San Antonio to Portland. Price data was last updated on April 11, 2025.

To ensure you get the cheapest price possible for a flight from San Antonio to Portland, Maine, you should look to book at least 64 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from San Antonio to Portland, Maine?

Currently, January is the cheapest month in which you can book a flight from San Antonio to Portland, Maine (average of $296). Flying from San Antonio to Portland, Maine in May is currently the most expensive (average of $416). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Rainfall in Portland by month

Plan your trip to Portland by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Portland, Maine ranges from 2.9 - 4.5 inches per month. November is typically the wettest month, when rainfall can reach 4.5 in. August is typically the driest time to visit Portland, Maine when rainfall is around 2.9 in.

Temperature in Portland by month

Plan your trip to Portland by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Portland, Maine, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 April 15, 2025.
Southwest
8.0
Very good
4,279 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.6

Crew

8.6

Boarding

8.2

Food

7.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.0
Very good
4,279 reviews
Southwest
8.0
Very good
4,279 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.6

Crew

8.6

Boarding

8.2

Food

7.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,917 reviews
Southwest
8.0
Very good
4,279 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.6

Crew

8.6

Boarding

8.2

Food

7.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,658 reviews
Southwest
8.0
Very good
4,279 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.6

Crew

8.6

Boarding

8.2

Food

7.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,279 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.6

Crew

8.6

Boarding

8.2

Food

7.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Frontier
6.0
Okay
3,281 reviews
Southwest
8.0
Very good
4,279 reviews

Overall

8.0

Comfort

8.0

Entertainment

7.6

Crew

8.6

Boarding

8.2

Food

7.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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.

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

    Currently priced at $297, 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 Southwest - these airlines can fly you to your destination from $302 and $351, respectively. You may be able to fly from San Antonio to Portland, Maine for 39% 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 Delta, which is currently one of the cheapest options available, starting at $149. Frontier flights start at $179 while deals on American Airlines start at $190 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.

  • What is the cheapest month to book a flight from San Antonio to Portland, Maine?

    Currently, January is the cheapest month in which you can book a flight from San Antonio to Portland, Maine (average of $296). Flying from San Antonio to Portland, Maine in May is currently the most expensive (average of $416). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
North Conway
Bath
Brunswick
Auburn
Conway
Lewiston

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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 April 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$286Average$434FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$326Average$477FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$347Average$448FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$356Average$492FlexibilityNo cancel feeOn-time69%

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