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$180+ 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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — PWM
Jul 12 — Jul 191
Sun 7/12
Sun 7/19
1 adult, Economy
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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 June 12, 2026.

This United Airlines deal was found by Cheapflights users on 6/11. 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 9/166:00 am
SAT
-
PWM
1 stop6h 55m
United Airlines
Mon 9/286:00 am
PWM
-
SAT
1 stop6h 41m
United Airlines
Deal found 6/11$292
This American Airlines deal was found by Cheapflights users on 6/11. 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.
Tue 8/181:33 pm
SAT
-
PWM
1 stop8h 15m
American Airlines
Fri 8/213:06 pm
PWM
-
SAT
1 stop6h 51m
American Airlines
Deal found 6/11$319
This Delta deal was found by Cheapflights users on 6/9. 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 9/154:15 pm
SAT
-
PWM
1 stop6h 10m
Delta
Mon 9/216:02 am
PWM
-
SAT
1 stop7h 13m
Delta
Deal found 6/9$320
This Southwest deal was found by Cheapflights users on 6/11. 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.
Wed 9/1611:30 am
SAT
-
PWM
2 stops9h 35m
Southwest
Mon 9/285:55 am
PWM
-
SAT
2 stops9h 20m
Southwest
Deal found 6/11$324
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Tue 9/156:00 am
SAT
-
PWM
1 stop6h 55m
United Airlines
Mon 9/214:57 pm
PWM
-
SAT
1 stop6h 54m
United Airlines
Deal found 6/11$340
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Tue 9/152:35 pm
SAT
-
PWM
1 stop8h 12m
American Airlines
Mon 9/211:42 pm
PWM
-
SAT
1 stop8h 56m
American Airlines
Deal found 6/10$346

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 June 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$319
(American Airlines)

One-way from

$180
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$513
Provider with most accurate pricing for San Antonio-Portland flight deals.
Search Deals
Provider most trusted by Cheapflights users for San Antonio-Portland flights.
Search Deals
From San Antonio to Portland
Search Deals
One-way flight from San Antonio to Portland
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($111 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

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 June 12, 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

Mon 8/24

2:55 pm-10:25 pm

1 stop6h 30m

Portland

Thu 8/27

3:40 pm-9:30 pm

1 stop6h 50m

$363

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

Sat 8/29

12:10 pm-7:17 pm

1 stop6h 07m

Portland

Tue 9/1

6:00 am-3:43 pm

2 stops10h 43m

$397

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

Wed 8/19

2:43 pm-11:13 pm

1 stop7h 30m

Portland

Sun 8/23

6:05 am-11:09 am

1 stop6h 04m

$408

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

Thu 7/16

3:45 pm-12:10 am

1 stop7h 25m

Portland

Tue 7/21

5:30 am-10:45 am

1 stop6h 15m

$419

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

Tue 8/4

2:43 pm-11:13 pm

1 stop7h 30m

Portland

Sat 8/8

6:00 am-4:39 pm

2 stops11h 39m

$453

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

Sat 7/4

7:40 am-7:10 pm

2 stops10h 30m

Portland

Fri 7/10

5:35 am-1:25 pm

2 stops8h 50m

$465
Cheapest one-way

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

Wed 7/29

3:15 pm-11:00 pm

1 stop6h 45m

$186
Quickest one-way

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

Tue 7/28

11:50 am-6:30 pm

1 stop5h 40m

$186

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

Sun 9/6

2:40 pm-9:45 pm

1 stop6h 05m

$186

San AntonioPortland

SAT - PWM

SATPWM

San Antonio

Tue 7/28

5:20 am-2:19 pm

2 stops7h 59m

$191

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 16 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 June.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 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 June 12, 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.
Southwest
7.9
Good
4,234 reviews

Boarding

8.1

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

7.9

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.
Southwest
7.9
Good
4,234 reviews
Southwest
7.9
Good
4,234 reviews

Boarding

8.1

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

7.9

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.
Delta
7.9
Good
8,400 reviews
Southwest
7.9
Good
4,234 reviews

Boarding

8.1

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

7.9

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.
United Airlines
7.4
Good
9,810 reviews
Southwest
7.9
Good
4,234 reviews

Boarding

8.1

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

7.9

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.
American Airlines
7.1
Good
11,644 reviews
Southwest
7.9
Good
4,234 reviews

Boarding

8.1

Crew

8.6

Comfort

8.0

Entertainment

7.5

Food

7.0

Overall

7.9

Reviews

1 / 20
8.0
Excellent

La Tracimeldamarcos,Jun 2026

LAX - SLC

The second flight was not as comfortable as the first as we had to change planes to what seemed to be a slightly older aircraft. The seats weren’t as comfortable as the other plane. But it wasn’t bad.

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 $397, Southwest can have you in Portland, Maine from San Antonio in 6h 07m. Airlines will cover a distance of 1827 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 United Airlines and Delta - these airlines can fly you to your destination from $218 and $296, respectively. You may be able to fly from San Antonio to Portland, Maine for 64% 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 June 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$172Average$414FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$218Average$381FlexibilityNo cancel feeOn-time69%
DeltaCheapest$296Average$378FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$365Average$476FlexibilityNo cancel feeOn-time63%

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