Cheap Flights from San Antonio, TX to Portland, ME from $80

On Cheapflightsplus.com you will find 114 connecting flights from San Antonio to Portland. You can compare airfare deals from 3 airlines and multiple travel sites from $80, book and save on cheap plane tickets and last minute offers. Also check out SAT-PWM flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip San Antonio to Portland Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $80 (one-way), $137 (round-trip).
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Full flight schedule will help you in detecting at what time planes fly from San Antonio to Portland. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
Departure Arrival Flight Details Flight Duration Price
07:00 — 14:42
07:00 — 09:51 UA2629 United Airlines
San Antonio — Chicago
1h 19m stop
11:10 — 14:42 UA5708 United Airlines
Chicago — Portland
6h 42m
including layover
Find flight
from$333
07:45 — 14:38
07:45 — 11:55 UA1347 United Airlines
San Antonio — Washington D.C.
1h stop
12:55 — 14:38 UA3627 United Airlines
Washington D.C. — Portland
5h 53m
including layover
Find flight
from$370
08:18 — 18:46
08:18 — 13:00 UA1590 United Airlines
San Antonio — Newark
4h 17m stop
17:17 — 18:46 UA3619 United Airlines
Newark — Portland
9h 28m
including layover
Find flight
from$602
08:18 — 22:50
08:18 — 13:00 UA1590 United Airlines
San Antonio — Newark
8h 29m stop
21:29 — 22:50 UA2478 United Airlines
Newark — Portland
13h 32m
including layover
Find flight
from$728
12:15 — 20:09
12:15 — 16:29 UA2250 United Airlines
San Antonio — Washington D.C.
1h 56m stop
18:25 — 20:09 UA6197 United Airlines
Washington D.C. — Portland
6h 54m
including layover
Find flight
from$395
12:25 — 22:30
12:25 — 17:10 UA1741 United Airlines
San Antonio — Newark
3h 58m stop
21:08 — 22:30 UA539 United Airlines
Newark — Portland
9h 5m
including layover
Find flight
from$333
14:00 — 21:42
14:00 — 16:51 UA2243 United Airlines
San Antonio — Chicago
1h 19m stop
18:10 — 21:42 UA3583 United Airlines
Chicago — Portland
6h 42m
including layover
Find flight
from$370
14:13 — 21:30
14:13 — 17:01 UA2243 United Airlines
San Antonio — Chicago
59m stop
18:00 — 21:30 UA5761 United Airlines
Chicago — Portland
6h 17m
including layover
Find flight
from$396
19:10 — 18:16
+1 day
19:10 — 22:57 F91654 Frontier Airlines
San Antonio — Orlando
16h 12m stop
17:09 — 20:14 F92622 Frontier Airlines
Orlando — Portland
22h 6m
including layover
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from$80
05:15 — 22:50
05:15 — 06:21 UA469 United Airlines
San Antonio — Houston
8h 19m stop
14:40 — 19:08 UA2608 United Airlines
Houston — Newark
2h 21m stop
21:29 — 22:50 UA2478 United Airlines
Newark — Portland
16h 35m
including layover
Find flight
from$478
09:44 — 23:20
09:44 — 10:52 UA654 United Airlines
San Antonio — Houston
2h 43m stop
13:35 — 18:10 UA1832 United Airlines
Houston — Newark
3h 49m stop
21:59 — 23:20 UA673 United Airlines
Newark — Portland
12h 36m
including layover
Find flight
from$461
09:45 — 22:50
09:45 — 10:49 UA654 United Airlines
San Antonio — Houston
2h 41m stop
13:30 — 17:56 UA1012 United Airlines
Houston — Newark
3h 33m stop
21:29 — 22:50 UA2478 United Airlines
Newark — Portland
12h 5m
including layover
Find flight
from$499
11:04 — 11:14
+1 day
11:04 — 12:02 NK448 Spirit Airlines
San Antonio — Las Vegas
9h 5m stop
21:07 — 04:26 NK900 Spirit Airlines
Las Vegas — Tampa
3h 34m stop
08:00 — 11:14 MX138 Mexicana
Tampa — Portland
23h 10m
including layover
Find flight
from$301
13:14 — 11:14
+1 day
13:14 — 14:14 NK1023 Spirit Airlines
San Antonio — Las Vegas
6h 53m stop
21:07 — 04:26 NK900 Spirit Airlines
Las Vegas — Tampa
3h 34m stop
08:00 — 11:14 MX138 Mexicana
Tampa — Portland
21h
including layover
Find flight
from$248
13:14 — 11:21
+1 day
13:14 — 14:14 NK1023 Spirit Airlines
San Antonio — Las Vegas
9h 35m stop
23:49 — 07:15 NK1853 Spirit Airlines
Las Vegas — Orlando
1h stop
08:15 — 11:21 MX738 Mexicana
Orlando — Portland
21h 7m
including layover
Find flight
from$250
16:13 — 23:20
+1 day
16:13 — 17:21 UA2070 United Airlines
San Antonio — Houston
2h 39m stop
20:00 — 00:28 UA1444 United Airlines
Houston — Newark
21h 31m stop
21:59 — 23:20 UA673 United Airlines
Newark — Portland
30h 7m
including layover
Find flight
from$478
16:57 — 10:26
+1 day
16:57 — 18:19 UA680 United Airlines
San Antonio — Denver
5h 40m stop
23:59 — 05:39 UA297 United Airlines
Denver — Newark
3h 16m stop
08:55 — 10:26 UA3609 United Airlines
Newark — Portland
16h 29m
including layover
Find flight
from$453
18:02 — 23:20
+1 day
18:02 — 19:10 UA465 United Airlines
San Antonio — Houston
50m stop
20:00 — 00:28 UA1444 United Airlines
Houston — Newark
21h 31m stop
21:59 — 23:20 UA673 United Airlines
Newark — Portland
28h 18m
including layover
Find flight
from$478
18:02 — 10:31
+1 day
18:02 — 19:10 UA465 United Airlines
San Antonio — Houston
50m stop
20:00 — 00:28 UA1444 United Airlines
Houston — Newark
8h 32m stop
09:00 — 10:31 UA3716 United Airlines
Newark — Portland
15h 29m
including layover
Find flight
from$491
*Departure and arrival times - local. Updated on May 12, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from San Antonio to Portland depends on and how to choose the most interesting flight option for you.

Distance between San Antonio and Portland is 2942 miles. Time difference between the cities is 1h. Airplanes depart 05:00 to 19:10 from 5 San Antonio airports and arrive 05:00 to 19:10 to 1 Portland airport. Average flight time is 14h 21m.

  • The fastest flight 5h 53m
  • Average flight time 14h 21m
  • The earliest flight 05:00
  • The latest flight 19:10
  • Distance 1829 ml

The cheapest months to travel to Portland are february (from 80 $), december (from 82 $), january (from 252 $).

The most expensive months are november (from 395 $), january (from 252 $), december (from 82 $).

What is the lowest airfare San Antonio to Portland?

The cheapest plane ticket found by our users is $80. This airfare is for economy class on one-way F91654 flight by Frontier Airlines for February 1, 2025 which leaves San Antonio in San Antonio at 19:10 am and arrives at Portland Portland Intl Jetport at 18:16.

Economy class
$80
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Business class
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First class
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Popular Airlines on the Route

The flight San Antonio — Portland is served by 3 regular airlines and 2 low-cost airlines. Most of the flights on this route are operated by Frontier Airlines - 1 departures per week at the price of from $ 80 . And the most expensive tickets are offered by United Airlines airline - from $ 824.

Direct flights

There’re no direct flights on this route. Try flights with stops.

Connecting Flights

There are 114 flights with layovers on the route. The fastest connecting flight is UA1347 by United Airlines takes 5h 53m and the cheapest is F91654 by Frontier Airlines for $80.

  • F9 - Frontier Airlines
    from $80
    Find
  • UA - United Airlines
    from $333
    Find
  • NK - Spirit Airlines
    from $248
    Find
See more connecting flights

Airports

You can fly from San Antonio to Portland from 5 airports (Randolph AFB, Martindale AAF, San Antonio, Kelly AFB, Stinson Municipal).

San Antonio airports

  • Randolph AFB-RND
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  • Martindale AAF-MDA
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  • San Antonio-SAT
    from $80
    Find
  • Kelly AFB-SKF
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  • Stinson Municipal-SSF
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Portland airports

  • Portland Intl Jetport-PWM
    Find

How to book a plane ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

    To find a plane ticket, please select dates.

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