$279+ Cheap flights from San Antonio to Portland, ME (SAT - PWM)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/24. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — PWM
Oct 10 — Oct 171
Round-trip
1 adult, Economy
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Find cheap flights from San Antonio to Portland with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from San Antonio to Portland
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Cheapest flights from San Antonio to PortlandExplore 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 September 10, 2026.
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 September 10, 2026.
This American Airlines deal was found by Cheapflights users on 9/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/172:59 pm -
1 stop7h 44m
Thu 10/225:45 pm -
1 stop7h 13m
Deal found 9/9![American Airlines logo]()
$382
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/268:21 pm -
2 stops35h 47m
Sat 10/315:09 pm -
1 stop17h 36m
Deal found 9/6![Multiple Airlines logo]()
$399
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/288:20 pm -
2 stops35h 48m
Sat 10/315:09 pm -
1 stop17h 36m
Deal found 9/6![Multiple Airlines logo]()
$407
This Southwest deal was found by Cheapflights users on 9/6. 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 10/133:40 pm -
1 stop6h 00m
Tue 10/276:00 pm -
1 stop6h 35m
Deal found 9/6![Southwest logo]()
$417
This American Airlines deal was found by Cheapflights users on 9/6. 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 10/132:05 pm -
2 stops8h 31m
Tue 10/273:57 pm -
1 stop7h 04m
Deal found 9/6![American Airlines logo]()
$422
This American Airlines deal was found by Cheapflights users on 9/6. 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 10/276:14 am -
1 stop8h 29m
Sat 10/315:45 pm -
1 stop7h 12m
Deal found 9/6![American Airlines logo]()
$425
This Southwest deal was found by Cheapflights users on 9/5. 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 10/124:55 pm -
1 stop6h 00m
Fri 10/165:20 am -
1 stop6h 40m
Deal found 9/5![Southwest logo]()
$443
This American Airlines deal was found by Cheapflights users on 9/7. 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 10/73:09 pm -
1 stop7h 34m
Wed 10/144:29 pm -
1 stop7h 27m
Deal found 9/7![American Airlines logo]()
$444
Best flights from San Antonio to PortlandDiscover carefully curated flight deals from San Antonio to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
Discover carefully curated flight deals from San Antonio to Portland that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
This Delta deal was found by Cheapflights users on 9/6. 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 10/275:15 am -
2 stops9h 20m
Fri 10/301:52 pm -
2 stops10h 15m
Deal found 9/6![Delta logo]()
$455
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/107:00 am -
1 stop6h 27m
Wed 11/115:08 pm -
1 stop7h 30m
Deal found 9/9![United Airlines logo]()
$469
This Kiwi.com deal was found by Cheapflights users on 9/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/209:25 am -
2 stops27h 32m
Thu 9/248:14 pm -
1 stop13h 56m
Deal found 9/5![Multiple Airlines logo]()
$566
This Delta deal was found by Cheapflights users on 9/6. 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 10/285:15 am -
1 stop5h 42m
Sun 11/14:47 pm -
1 stop6h 33m
Deal found 9/6![Delta logo]()
$467
This Delta deal was found by Cheapflights users on 9/6. 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.
Mon 10/265:30 am -
2 stops10h 17m
Fri 10/304:47 pm -
1 stop7h 20m
Deal found 9/6![Delta logo]()
$480
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/112:50 pm -
2 stops10h 09m
Tue 10/66:00 am -
2 stops12h 40m
Deal found 9/9![United Airlines logo]()
$561
This Delta deal was found by Cheapflights users on 9/6. 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.
Thu 11/195:30 am -
2 stops8h 46m
Mon 11/236:27 am -
2 stops10h 38m
Deal found 9/6![Delta logo]()
$485
Last-minute flights from San Antonio to PortlandDiscover last-minute flight deals from San Antonio to Portland. Data last updated September 10, 2026 and is based on user searches.
Discover last-minute flight deals from San Antonio to Portland. Data last updated September 10, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/7. 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 10/73:09 pm -
1 stop7h 34m
Wed 10/144:29 pm -
1 stop7h 27m
Deal found 9/7![American Airlines logo]()
$444
This Southwest deal was found by Cheapflights users on 9/5. 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 10/124:55 pm -
1 stop6h 00m
Fri 10/165:20 am -
1 stop6h 40m
Deal found 9/5![Southwest logo]()
$443
This Southwest deal was found by Cheapflights users on 9/6. 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 10/133:40 pm -
1 stop6h 00m
Tue 10/276:00 pm -
1 stop6h 35m
Deal found 9/6![Southwest logo]()
$417
This American Airlines deal was found by Cheapflights users on 9/6. 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 10/132:05 pm -
2 stops8h 31m
Tue 10/273:57 pm -
1 stop7h 04m
Deal found 9/6![American Airlines logo]()
$422
This American Airlines deal was found by Cheapflights users on 9/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/172:59 pm -
1 stop7h 44m
Thu 10/225:45 pm -
1 stop7h 13m
Deal found 9/9![American Airlines logo]()
$382
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/268:21 pm -
2 stops35h 47m
Sat 10/315:09 pm -
1 stop17h 36m
Deal found 9/6![Multiple Airlines logo]()
$399
This American Airlines deal was found by Cheapflights users on 9/6. 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 10/276:14 am -
1 stop8h 29m
Sat 10/315:45 pm -
1 stop7h 12m
Deal found 9/6![American Airlines logo]()
$425
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/288:20 pm -
2 stops35h 48m
Sat 10/315:09 pm -
1 stop17h 36m
Deal found 9/6![Multiple Airlines logo]()
$407
One-way flights from San Antonio to PortlandSearch for one-way flight options from San Antonio to Portland. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
Search for one-way flight options from San Antonio to Portland. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/248:20 pm -
2 stops37h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$279
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/89:25 am -
3 stops55h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$292
This American Airlines deal was found by Cheapflights users on 9/6. 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 9/2312:15 pm -
1 stop8h 58m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![American Airlines logo]()
$299
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/238:20 pm -
3 stops50h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$311
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/112:50 pm -
2 stops10h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![United Airlines logo]()
$322
This Delta deal was found by Cheapflights users on 9/9. 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.
Thu 10/15:15 am -
1 stop5h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Delta logo]()
$343
This Delta deal was found by Cheapflights users on 9/6. 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 9/2311:36 am -
2 stops10h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Delta logo]()
$345
This Delta deal was found by Cheapflights users on 9/6. 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.
Thu 9/241:20 pm -
1 stop9h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Delta logo]()
$413
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 September 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $382 (American Airlines) |
One-way from | $243 (Kiwi.com) |
Popular in | December |
Cheapest in | September |
Average price | $296 |
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 7,457,451 searches. Data last updated September 10, 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
Cheapest round-trip
San AntonioPortland
SAT San Antonio - PWM Portland
SATPWM
San Antonio
Thu 10/1
12:50 pm-11:59 pm
2 stops10h 09m
Portland
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$322
Quickest round-trip
San AntonioPortland
SAT San Antonio - PWM Portland
SATPWM
San Antonio
Thu 10/1
5:15 am-12:10 pm
1 stop5h 55m
Portland
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$343
San AntonioPortland
SAT San Antonio - PWM Portland
SATPWM
San Antonio
Wed 9/23
11:36 am-11:28 pm
2 stops10h 52m
Portland
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$345
San AntonioPortland
SAT San Antonio - PWM Portland
SATPWM
San Antonio
Thu 10/8
8:21 pm-9:08 am
2 stops35h 47m
Portland
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$354
San AntonioPortland
SAT San Antonio - PWM Portland
SATPWM
San Antonio
Thu 9/24
1:20 pm-11:56 pm
1 stop9h 36m
Portland
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$413
San AntonioPortland
SAT San Antonio - PWM Portland
SATPWM
San Antonio
Tue 10/27
5:15 am-3:35 pm
2 stops9h 20m
Portland
Fri 10/30
1:52 pm-11:07 pm
2 stops10h 15m
$455
San AntonioPortland
SAT San Antonio - PWM Portland
SATPWM
San Antonio
Wed 10/28
5:15 am-11:57 am
1 stop5h 42m
Portland
Sun 11/1
4:47 pm-10:20 pm
1 stop6h 33m
$467
San AntonioPortland
SAT San Antonio - PWM Portland
SATPWM
San Antonio
Tue 11/10
7:00 am-2:27 pm
1 stop6h 27m
Portland
Wed 11/11
5:08 pm-11:38 pm
1 stop7h 30m
$469
San AntonioPortland
SAT San Antonio - PWM Portland
SATPWM
San Antonio
Mon 10/26
5:30 am-4:47 pm
2 stops10h 17m
Portland
Fri 10/30
4:47 pm-11:07 pm
1 stop7h 20m
$480
San AntonioPortland
SAT San Antonio - PWM Portland
SATPWM
San Antonio
Thu 11/19
5:30 am-3:16 pm
2 stops8h 46m
Portland
Mon 11/23
6:27 am-4:05 pm
2 stops10h 38m
$485
Showing 1-10 of 13 resultsSorted by cheapest first
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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
SAT-PWM
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.
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 September 10, 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
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Overall
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Overall
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Overall
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Overall
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Crew
8.6
Food
7.0
Overall
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
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.
Traveling to a place near Portland?
Book flights to Portland if you plan to visit one of these locationsNorth Conway
Lewiston
Brunswick
Conway
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San Antonio and Portland flights
Browse other San Antonio and Portland flight options. Last updated on September 10, 2026.
Other flights from San Antonio
Browse through other flights departing from San Antonio. Flights are based on user searches made on Cheapflights and were last updated on September 10, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Portland
Explore flights to Portland departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 10, 2026.
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 7,457,451 searches. Data last updated September 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$218 | Average$422 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$294 | Average$497 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$318 | Average$433 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$378 | Average$476 | FlexibilityNo cancel fee | On-time63% |