$86+ Cheap flights from Portland to San Antonio (PDX - 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 5/15. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SAT
May 29 — Jun 51
Round-trip
1 adult, Economy
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Find cheap flights from Portland to San Antonio 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
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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 Portland to San Antonio
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Best
Last-minute
One-way
Cheapest flights from Portland to San AntonioExplore 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 April 29, 2026.
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 April 29, 2026.
This Booking.com deal was found by Cheapflights users on 4/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/149:46 pm
PDX
- SAT
1 stop20h 28m
Frontier
Wed 5/208:59 pm
SAT
- PDX
1 stop15h 21m
Frontier
Deal found 4/28![Frontier logo]()
$192
This CheapOair deal was found by Cheapflights users on 4/24. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/88:46 pm
PDX
- SAT
1 stop21h 28m
Frontier
Wed 5/137:54 pm
SAT
- PDX
1 stop22h 52m
Frontier
Deal found 4/24![Frontier logo]()
$211
This Mytrip deal was found by Cheapflights users on 4/28. 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.
Thu 5/2812:35 pm
PDX
- SAT
1 stop28h 24m
Frontier
Sun 5/317:54 pm
SAT
- PDX
1 stop22h 52m
Frontier
Deal found 4/28![Frontier logo]()
$230
This Frontier deal was found by Cheapflights users on 4/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1812:35 pm
PDX
- SAT
1 stop28h 24m
Frontier
Wed 5/277:54 pm
SAT
- PDX
1 stop22h 52m
Frontier
Deal found 4/26![Frontier logo]()
$231
This Booking.com deal was found by Cheapflights users on 4/25. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/412:35 pm
PDX
- SAT
1 stop28h 24m
Frontier
Sat 6/68:59 pm
SAT
- PDX
1 stop15h 21m
Frontier
Deal found 4/25![Frontier logo]()
$232
This Booking.com deal was found by Cheapflights users on 4/24. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/158:46 pm
PDX
- SAT
1 stop21h 28m
Frontier
Sun 5/247:54 pm
SAT
- PDX
1 stop22h 52m
Frontier
Deal found 4/24![Frontier logo]()
$238
This Frontier deal was found by Cheapflights users on 4/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/149:46 pm
PDX
- SAT
1 stop20h 28m
Frontier
Sat 5/237:54 pm
SAT
- PDX
1 stop22h 52m
Frontier
Deal found 4/26![Frontier logo]()
$245
This CheapOair deal was found by Cheapflights users on 4/26. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1812:35 pm
PDX
- SAT
1 stop28h 24m
Frontier
Sat 5/237:54 pm
SAT
- PDX
1 stop22h 52m
Frontier
Deal found 4/26![Frontier logo]()
$261
This Gotogate deal was found by Cheapflights users on 4/26. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/105:20 pm
PDX
- SAT
1 stop23h 36m
Frontier
Wed 6/178:56 pm
SAT
- PDX
1 stop22h 28m
Frontier
Deal found 4/26![Frontier logo]()
$262
Best flights from Portland to San AntonioDiscover carefully curated flight deals from Portland to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 29, 2026.
Discover carefully curated flight deals from Portland to San Antonio that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 29, 2026.
This Delta deal was found by Cheapflights users on 4/26. 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 5/1811:12 pm
PDX
- SAT
1 stop9h 42m
Delta
Wed 5/276:35 am
SAT
- PDX
1 stop7h 58m
Delta
Deal found 4/26![Delta logo]()
$406
This Southwest deal was found by Cheapflights users on 4/25. 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 6/98:45 am
PDX
- SAT
2 stops9h 30m
Southwest
Tue 6/163:55 pm
SAT
- PDX
2 stops8h 15m
Southwest
Deal found 4/25![Southwest logo]()
$414
This Delta deal was found by Cheapflights users on 4/28. 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.
Fri 7/32:10 pm
PDX
- SAT
1 stop8h 23m
Delta
Tue 7/76:03 pm
SAT
- PDX
1 stop7h 41m
Delta
Deal found 4/28![Delta logo]()
$417
This Southwest deal was found by Cheapflights users on 4/28. 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 7/15:25 am
PDX
- SAT
2 stops7h 35m
Southwest
Sat 7/42:35 pm
SAT
- PDX
2 stops7h 45m
Southwest
Deal found 4/28![Southwest logo]()
$437
This Delta deal was found by Cheapflights users on 4/24. 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.
Fri 6/512:20 pm
PDX
- SAT
2 stops9h 28m
Delta
Tue 6/97:20 am
SAT
- PDX
2 stops11h 50m
Delta
Deal found 4/24![Delta logo]()
$441
This Southwest deal was found by Cheapflights users on 4/27. 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 5/2510:55 am
PDX
- SAT
1 stop6h 45m
Southwest
Mon 6/16:45 pm
SAT
- PDX
2 stops8h 10m
Southwest
Deal found 4/27![Southwest logo]()
$465
This Delta deal was found by Cheapflights users on 4/25. 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.
Sun 5/245:51 pm
PDX
- SAT
2 stops14h 01m
Delta
Fri 5/294:47 pm
SAT
- PDX
1 stop8h 14m
Delta
Deal found 4/25![Delta logo]()
$454
This Southwest deal was found by Cheapflights users on 4/28. 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.
Thu 7/27:30 am
PDX
- SAT
2 stops7h 35m
Southwest
Sun 7/56:40 pm
SAT
- PDX
2 stops8h 20m
Southwest
Deal found 4/28![Southwest logo]()
$487
This Delta deal was found by Cheapflights users on 4/28. 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 7/16:40 am
PDX
- SAT
1 stop6h 12m
Delta
Sat 7/412:36 pm
SAT
- PDX
2 stops9h 26m
Delta
Deal found 4/28![Delta logo]()
$466
This Southwest deal was found by Cheapflights users on 4/26. 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 5/208:50 am
PDX
- SAT
2 stops7h 25m
Southwest
Mon 5/256:45 pm
SAT
- PDX
2 stops8h 10m
Southwest
Deal found 4/26![Southwest logo]()
$489
This Delta deal was found by Cheapflights users on 4/24. 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 6/18:13 pm
PDX
- SAT
2 stops12h 41m
Delta
Fri 6/56:35 am
SAT
- PDX
2 stops10h 11m
Delta
Deal found 4/24![Delta logo]()
$491
Last-minute flights from Portland to San AntonioDiscover last-minute flight deals from Portland to San Antonio. Data last updated April 29, 2026 and is based on user searches.
Discover last-minute flight deals from Portland to San Antonio. Data last updated April 29, 2026 and is based on user searches.
This CheapOair deal was found by Cheapflights users on 4/24. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/88:46 pm
PDX
- SAT
1 stop21h 28m
Frontier
Wed 5/137:54 pm
SAT
- PDX
1 stop22h 52m
Frontier
Deal found 4/24![Frontier logo]()
$211
This Booking.com deal was found by Cheapflights users on 4/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/149:46 pm
PDX
- SAT
1 stop20h 28m
Frontier
Wed 5/208:59 pm
SAT
- PDX
1 stop15h 21m
Frontier
Deal found 4/28![Frontier logo]()
$192
This Frontier deal was found by Cheapflights users on 4/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/149:46 pm
PDX
- SAT
1 stop20h 28m
Frontier
Sat 5/237:54 pm
SAT
- PDX
1 stop22h 52m
Frontier
Deal found 4/26![Frontier logo]()
$245
This Booking.com deal was found by Cheapflights users on 4/24. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/158:46 pm
PDX
- SAT
1 stop21h 28m
Frontier
Sun 5/247:54 pm
SAT
- PDX
1 stop22h 52m
Frontier
Deal found 4/24![Frontier logo]()
$238
This CheapOair deal was found by Cheapflights users on 4/24. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/158:46 pm
PDX
- SAT
1 stop21h 28m
Frontier
Fri 5/227:54 pm
SAT
- PDX
1 stop22h 52m
Frontier
Deal found 4/24![Frontier logo]()
$300
This Frontier deal was found by Cheapflights users on 4/26. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1812:35 pm
PDX
- SAT
1 stop28h 24m
Frontier
Wed 5/277:54 pm
SAT
- PDX
1 stop22h 52m
Frontier
Deal found 4/26![Frontier logo]()
$231
This CheapOair deal was found by Cheapflights users on 4/26. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1812:35 pm
PDX
- SAT
1 stop28h 24m
Frontier
Sat 5/237:54 pm
SAT
- PDX
1 stop22h 52m
Frontier
Deal found 4/26![Frontier logo]()
$261
This Mytrip deal was found by Cheapflights users on 4/28. 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.
Thu 5/2812:35 pm
PDX
- SAT
1 stop28h 24m
Frontier
Sun 5/317:54 pm
SAT
- PDX
1 stop22h 52m
Frontier
Deal found 4/28![Frontier logo]()
$230
One-way flights from Portland to San AntonioSearch for one-way flight options from Portland to San Antonio. Find affordable one-way fares based on user searches. Data last updated April 29, 2026.
Search for one-way flight options from Portland to San Antonio. Find affordable one-way fares based on user searches. Data last updated April 29, 2026.
This Booking.com deal was found by Cheapflights users on 4/24. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/158:46 pm
PDX
- SAT
1 stop21h 28m
Frontier
Deal found 4/24![Frontier logo]()
$86
This Priceline deal was found by Cheapflights users on 4/25. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/611:15 am
PDX
- SAT
1 stop6h 59m
Frontier
Deal found 4/25![Frontier logo]()
$105
This Booking.com deal was found by Cheapflights users on 4/26. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/109:46 pm
PDX
- SAT
1 stop20h 28m
Frontier
Deal found 4/26![Frontier logo]()
$111
This Mytrip deal was found by Cheapflights users on 4/25. 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 6/95:20 pm
PDX
- SAT
1 stop23h 36m
Frontier
Deal found 4/25![Frontier logo]()
$131
This Trip.com deal was found by Cheapflights users on 4/29. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/79:46 pm
PDX
- SAT
1 stop20h 28m
Frontier
Deal found 4/29![Frontier logo]()
$134
This CheapOair deal was found by Cheapflights users on 4/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/206:59 pm
PDX
- SAT
1 stop23h 15m
Frontier
Deal found 4/28![Frontier logo]()
$137
This Mytrip deal was found by Cheapflights users on 4/28. 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 6/235:20 pm
PDX
- SAT
1 stop23h 36m
Frontier
Deal found 4/28![Frontier logo]()
$151
This Booking.com deal was found by Cheapflights users on 4/27. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/1112:26 pm
PDX
- SAT
1 stop28h 30m
Frontier
Deal found 4/27![Frontier logo]()
$152
This CheapOair deal was found by Cheapflights users on 4/24. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/155:16 pm
PDX
- SAT
1 stop23h 38m
Frontier
Deal found 4/24![Frontier logo]()
$157
This Booking.com deal was found by Cheapflights users on 4/26. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/312:45 pm
PDX
- SAT
1 stop26h 46m
Frontier
Deal found 4/26![Frontier logo]()
$187
Find flight deals from Portland to San Antonio
Discover tips and strategies to find the most affordable flight options for your journey from Portland (PDX) 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 April 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $192 (Booking.com) |
One-way from | $86 (Booking.com) |
Popular in | December |
Cheapest in | August |
Average price | $408 |
Cheapflights Fare Finder
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 April 29, 2026.
Use the filters below to find and compare flights from Portland to San Antonio that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PortlandSan Antonio
PDX - SAT
PDXSAT
Portland
Mon 5/18
11:12 pm-10:54 am
1 stop9h 42m
San Antonio
Wed 5/27
6:35 am-12:33 pm
1 stop7h 58m
$406
PortlandSan Antonio
PDX - SAT
PDXSAT
Portland
Tue 6/9
8:45 am-8:15 pm
2 stops9h 30m
San Antonio
Tue 6/16
3:55 pm-10:10 pm
2 stops8h 15m
$414
PortlandSan Antonio
PDX - SAT
PDXSAT
Portland
Fri 7/3
2:10 pm-12:33 am
1 stop8h 23m
San Antonio
Tue 7/7
6:03 pm-11:44 pm
1 stop7h 41m
$417
PortlandSan Antonio
PDX - SAT
PDXSAT
Portland
Wed 7/1
5:25 am-3:00 pm
2 stops7h 35m
San Antonio
Sat 7/4
2:35 pm-8:20 pm
2 stops7h 45m
$437
PortlandSan Antonio
PDX - SAT
PDXSAT
Portland
Fri 6/5
12:20 pm-11:48 pm
2 stops9h 28m
San Antonio
Tue 6/9
7:20 am-5:10 pm
2 stops11h 50m
$441
PortlandSan Antonio
PDX - SAT
PDXSAT
Portland
Sun 5/24
5:51 pm-9:52 am
2 stops14h 01m
San Antonio
Fri 5/29
4:47 pm-11:01 pm
1 stop8h 14m
$454
Quickest round-trip
PortlandSan Antonio
PDX - SAT
PDXSAT
Portland
Mon 5/25
10:55 am-7:40 pm
1 stop6h 45m
San Antonio
Mon 6/1
6:45 pm-12:55 am
2 stops8h 10m
$465
PortlandSan Antonio
PDX - SAT
PDXSAT
Portland
Wed 7/1
6:40 am-2:52 pm
1 stop6h 12m
San Antonio
Sat 7/4
12:36 pm-8:02 pm
2 stops9h 26m
$466
PortlandSan Antonio
PDX - SAT
PDXSAT
Portland
Thu 7/2
7:30 am-5:05 pm
2 stops7h 35m
San Antonio
Sun 7/5
6:40 pm-1:00 am
2 stops8h 20m
$487
PortlandSan Antonio
PDX - SAT
PDXSAT
Portland
Wed 5/20
8:50 am-6:15 pm
2 stops7h 25m
San Antonio
Mon 5/25
6:45 pm-12:55 am
2 stops8h 10m
$489
Showing 1-10 of 22 resultsSorted by cheapest first
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 April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Portland-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-San Antonio flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Portland-San Antonio flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Portland-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-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.
PDX-SAT
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 Portland to San Antonio
How far ahead should I book a flight from Portland to San Antonio?
Booking 69 days in advance of your planned departure date is, on average, the best time to get cheap flights from Portland to San Antonio. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Portland to San Antonio?
Currently, August is the cheapest month in which you can book a flight from Portland to San Antonio (average of $304). Flying from Portland to San Antonio in December is currently the most expensive (average of $491). 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.
How much does it cost to fly round-trip from Portland to San Antonio?
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 April 29, 2026.
Read reviews from past customers who have flown Southwest,Delta, andUnited Airlines from Portland to San Antonio. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
8.0
Boarding
8.1
Food
7.0
Comfort
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Boarding
8.1
Food
7.0
Comfort
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Boarding
8.1
Food
7.0
Comfort
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Boarding
8.1
Food
7.0
Comfort
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Boarding
8.1
Food
7.0
Comfort
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Overall
8.0
Boarding
8.1
Food
7.0
Comfort
8.0
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Related info for your journey
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Portland and San Antonio flights
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Top 6 airlines flying from Portland to San Antonio
Discover the top 6 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 April 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$136 | Average$240 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$191 | Average$396 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$236 | Average$405 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$248 | Average$380 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$270 | Average$416 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$286 | Average$429 | FlexibilityNo cancel fee | On-time63% |