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$157+ Cheap flights from Portland, ME to San Antonio (PWM - SAT)

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 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
PWM — SAT
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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The best prices from Portland to San Antonio are usually found in June or September, booked 29 days in advance, depart on a Wednesday or Saturday and return on a Tuesday

Cheap flight deals from Portland to San Antonio

Discover tips and strategies to find the most affordable flight options for your journey from Portland (PWM) to San Antonio (SAT). 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 January 21, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$357
(United Airlines)

One-way from

$157
(Mytrip)

Popular in

March

Cheapest in

June

Average price

$475
Provider with most accurate pricing for Portland-San Antonio flight deals.
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Provider most trusted by Cheapflights users for Portland-San Antonio flights.
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From Portland to San Antonio
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One-way flight from Portland to San Antonio
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High demand for flights, 15% potential price rise
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Best time to find cheap flights, 4% potential price drop
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Average for round-trip flights in January 2025
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Find flight deals from Portland to San Antonio

Cheapest flights from Portland to San Antonio
Explore the most affordable flight options available from Portland to San Antonio. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.

This United Airlines deal was found by Cheapflights users on 1/20. 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.
Wed 2/194:04 pmPWM - SAT
1 stop8h 06mUnited Airlines
Wed 2/267:44 amSAT - PWM
1 stop5h 58mUnited Airlines
Deal found 1/20$357
This Delta deal was found by Cheapflights users on 1/20. 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.
Tue 2/45:27 amPWM - SAT
1 stop7h 07mDelta
Tue 2/187:00 amSAT - PWM
2 stops8h 44mDelta
Deal found 1/20$362
This Mytrip deal was found by Cheapflights users on 1/20. 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.
Tue 5/131:41 pmPWM - SAT
3 stops22h 45mMultiple Airlines
Mon 5/196:08 pmSAT - PWM
2 stops17h 53mMultiple Airlines
Deal found 1/20$384
This Southwest deal was found by Cheapflights users on 1/20. 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.
Tue 5/132:20 pmPWM - SAT
2 stops9h 55mSouthwest
Mon 5/192:00 pmSAT - PWM
2 stops8h 20mSouthwest
Deal found 1/20$459
This American Airlines deal was found by Cheapflights users on 1/20. 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.
Sat 3/155:20 pmPWM - SAT
1 stop6h 23mAmerican Airlines
Sat 3/226:35 amSAT - PWM
1 stop14h 24mAmerican Airlines
Deal found 1/20$482

Find flights from Portland to San Antonio within your budget

Customize your flight search to find flights from Portland to San Antonio 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 January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

PortlandSan Antonio

PWM - SAT

PWMSAT

Portland

Wed 2/19

4:04 pm-11:10 pm

1 stop8h 06m

San Antonio

Wed 2/26

7:44 am-2:42 pm

1 stop5h 58m

$357

PortlandSan Antonio

PWM - SAT

PWMSAT

Portland

Tue 2/4

5:27 am-11:34 am

1 stop7h 07m

San Antonio

Tue 2/18

7:00 am-4:44 pm

2 stops8h 44m

$362

PortlandSan Antonio

PWM - SAT

PWMSAT

Portland

Tue 5/13

1:41 pm-11:26 am

3 stops22h 45m

San Antonio

Mon 5/19

6:08 pm-1:01 pm

2 stops17h 53m

$384

PortlandSan Antonio

PWM - SAT

PWMSAT

Portland

Tue 5/13

2:20 pm-11:15 pm

2 stops9h 55m

San Antonio

Mon 5/19

2:00 pm-11:20 pm

2 stops8h 20m

$459

PortlandSan Antonio

PWM - SAT

PWMSAT

Portland

Sat 3/15

5:20 pm-10:43 pm

1 stop6h 23m

San Antonio

Sat 3/22

6:35 am-9:59 pm

1 stop14h 24m

$482

PortlandSan Antonio

PWM - SAT

PWMSAT

Portland

Sun 2/2

7:06 pm-6:15 pm

1 stop24h 09m

$157

PortlandSan Antonio

PWM - SAT

PWMSAT

Portland

Tue 3/4

1:05 pm-9:10 pm

1 stop9h 05m

$176

PortlandSan Antonio

PWM - SAT

PWMSAT

Portland

Wed 2/5

5:27 am-11:34 am

1 stop7h 07m

$179

PortlandSan Antonio

PWM - SAT

PWMSAT

Portland

Mon 2/3

12:06 pm-8:59 pm

1 stop9h 53m

$203

PortlandSan Antonio

PWM - SAT

PWMSAT

Portland

Fri 5/2

5:30 am-3:19 pm

2 stops10h 49m

$264

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Compare providers for flights from Portland to San Antonio

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 Portland to San Antonio in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 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 Portland, Maine-San Antonio flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Portland, Maine-San Antonio flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland, Maine-San Antonio flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland, Maine-San Antonio 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 Portland, Maine-San Antonio 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 Portland to San Antonio

Have a flexible travel schedule? Discover the best time to fly to San Antonio from Portland 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.

Travel insights for flights from Portland to San Antonio

Get recent, data-driven insights about flights from Portland to San Antonio including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Portland, Maine to San Antonio?

Use this chart to determine the optimal time to book a round-trip flight from Portland to San Antonio. Price data was last updated on January 17, 2025.

The price you pay for your flight from Portland, Maine to San Antonio may vary depending on when you book. For the best chance of a lower fare, look to book 29 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

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

Currently, August is the cheapest month in which you can book a flight from Portland, Maine to San Antonio (average of $295). Flying from Portland, Maine to San Antonio in March is currently the most expensive (average of $376). 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 San Antonio by month

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

In terms of precipitation, rainfall in San Antonio ranges from 1.6 - 3.7 inches per month. May is typically the wettest month, when rainfall can reach 3.7 in. December is typically the driest time to visit San Antonio when rainfall is around 1.6 in.

Temperature in San Antonio by month

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

If weather is an important factor for your trip to San Antonio, 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 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

Reviews of airlines servicing San Antonio

Get insights into the airlines that provide service to San Antonio. 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 San Antonio. Reviews last updated January 21, 2025.
Southwest
8.1
Very good
4,659 reviews

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Overall

8.1

Food

7.2

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Southwest
8.1
Very good
4,659 reviews
Southwest
8.1
Very good
4,659 reviews

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Overall

8.1

Food

7.2

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Delta
8.0
Very good
8,521 reviews
Southwest
8.1
Very good
4,659 reviews

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Overall

8.1

Food

7.2

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

United Airlines
7.4
Good
8,984 reviews
Southwest
8.1
Very good
4,659 reviews

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Overall

8.1

Food

7.2

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,659 reviews

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Overall

8.1

Food

7.2

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Frontier
6.1
Okay
3,441 reviews
Southwest
8.1
Very good
4,659 reviews

Entertainment

7.7

Boarding

8.2

Comfort

8.1

Overall

8.1

Food

7.2

Crew

8.7

Reviews

1 / 10

We BARELY made the connection and when we got onboard we were treated like disobedient children who should have arrived earlier because we had to ask other passengers to move so we could sit with our kids. The flight attendants on the first flight were nice but the second one, they were snippy and fairly rude.

Related info for your journey

Find useful and relevant information for your journey from Portland to San Antonio. 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 Portland, Maine to San Antonio round-trip?

    Our cheapest airline available from Portland, Maine to San Antonio is United Airlines. Our recent data shows that you can find tickets from as low as $357 on this airline. Additional options worth looking into are Delta and Southwest, starting at $362 and $459 round-trip. United Airlines is priced at 31% lower than the current average price of a flight leaving 3 months from now.

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

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $157. However, be on the lookout for offers from Southwest and Delta, as they are both options that can get you from Portland, Maine to San Antonio for a low price.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Portland to San Antonio 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 Portland, Maine to San Antonio?

    Currently, August is the cheapest month in which you can book a flight from Portland, Maine to San Antonio (average of $295). Flying from Portland, Maine to San Antonio in March is currently the most expensive (average of $376). 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 Portland?

Book flights to Portland if you plan to visit one of these locations
New Braunfels

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Top 4 airlines flying from Portland to San Antonio

Discover the top 4 airlines that operate flights from Portland to San Antonio. 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 January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$306Average$426FlexibilityNo cancel feeOn-time71%
DeltaCheapest$316Average$496FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$346Average$611FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$366Average$536FlexibilityNo cancel feeOn-time63%
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