$66+ 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 1/18. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SAT
Jan 3 — Jan 101
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
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.Cheapflights Tip: The best prices from Portland to San Antonio are usually found in August or September, booked 41 days in advance, depart on a Tuesday or Wednesday and return on a Saturday
Cheap flight deals from Portland to San Antonio
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 December 4, 2025.
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 December 4, 2025.
This Frontier deal was found by Cheapflights users on 12/3. 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 12/228:45 pmPDX - SAT
1 stop10h 38mFrontier
Thu 1/16:45 amSAT - PDX
1 stop6h 58mFrontier
Deal found 12/3![Frontier logo]()
$257
This Kiwi.com deal was found by Cheapflights users on 12/1. 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 12/243:59 pmPDX - SAT
1 stop15h 24mFrontier
Wed 12/312:09 pmSAT - PDX
1 stop23h 34mFrontier
Deal found 12/1![Frontier logo]()
$269
This Kiwi.com deal was found by Cheapflights users on 12/1. 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 12/243:59 pmPDX - SAT
1 stop15h 24mFrontier
Sun 1/42:01 pmSAT - PDX
2 stops31h 49mFrontier
Deal found 12/1![Frontier logo]()
$274
This Frontier deal was found by Cheapflights users on 12/3. 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 12/2512:47 pmPDX - SAT
1 stop9h 30mFrontier
Thu 1/16:45 amSAT - PDX
1 stop6h 58mFrontier
Deal found 12/3![Frontier logo]()
$282
This Kiwi.com deal was found by Cheapflights users on 12/1. 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 12/243:59 pmPDX - SAT
1 stop15h 24mFrontier
Thu 1/16:45 amSAT - PDX
1 stop6h 58mFrontier
Deal found 12/1![Frontier logo]()
$293
This Frontier deal was found by Cheapflights users on 12/1. 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 12/298:45 pmPDX - SAT
1 stop10h 38mFrontier
Thu 1/16:45 amSAT - PDX
1 stop6h 58mFrontier
Deal found 12/1![Frontier logo]()
$303
This Frontier deal was found by Cheapflights users on 12/3. 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 12/228:45 pmPDX - SAT
1 stop10h 38mFrontier
Tue 12/306:45 amSAT - PDX
1 stop6h 58mFrontier
Deal found 12/3![Frontier logo]()
$312
This American Airlines deal was found by Cheapflights users on 12/2. 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 12/313:00 pmPDX - SAT
1 stop6h 23mAmerican Airlines
Sun 1/48:19 pmSAT - PDX
1 stop6h 35mAmerican Airlines
Deal found 12/2![American Airlines logo]()
$322
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 December 4, 2025.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $148 (Kiwi.com) |
One-way from | $66 (WAYA) |
Popular in | December |
Cheapest in | August |
Average price | $491 |
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 December 4, 2025.
Use the filters below to find and compare flights from Portland to San Antonio that are best for you.
Fly from
Portland
Fly to
San Antonio
Route
Depart
Return
Price
PortlandSan Antonio
PDX - SAT
PDXSAT
Portland
Mon 1/19
1:02 pm-11:43 pm
1 stop8h 41m
San Antonio
Mon 1/26
1:40 pm-10:15 pm
1 stop10h 35m
$213
PortlandSan Antonio
PDX - SAT
PDXSAT
Portland
Tue 1/20
1:30 pm-12:41 am
2 stops9h 11m
San Antonio
Sat 1/24
7:00 am-6:50 pm
2 stops13h 50m
$236
PortlandSan Antonio
PDX - SAT
PDXSAT
Portland
Thu 2/5
7:10 am-9:34 pm
2 stops12h 24m
San Antonio
Mon 2/9
7:00 am-6:50 pm
2 stops13h 50m
$236
PortlandSan Antonio
PDX - SAT
PDXSAT
Portland
Thu 2/12
11:46 am-11:41 pm
1 stop9h 55m
San Antonio
Tue 2/17
4:47 pm-11:29 pm
1 stop8h 42m
$260
PortlandSan Antonio
PDX - SAT
PDXSAT
Portland
Wed 2/4
12:30 pm-9:35 pm
2 stops7h 05m
San Antonio
Thu 2/12
2:05 pm-8:55 pm
1 stop8h 50m
$271
PortlandSan Antonio
PDX - SAT
PDXSAT
Portland
Mon 1/5
2:45 pm-11:43 pm
1 stop6h 58m
San Antonio
Thu 1/8
6:20 pm-10:54 pm
1 stop6h 34m
$283
PortlandSan Antonio
PDX - SAT
PDXSAT
Portland
Thu 2/19
11:15 am-11:43 pm
2 stops10h 28m
San Antonio
Mon 2/23
1:13 pm-8:55 pm
2 stops9h 42m
$317
PortlandSan Antonio
PDX - SAT
PDXSAT
Portland
Sun 2/15
11:15 am-9:28 pm
2 stops8h 13m
San Antonio
Sat 2/21
7:35 am-12:25 pm
1 stop6h 50m
$325
PortlandSan Antonio
PDX - SAT
PDXSAT
Portland
Thu 3/5
8:30 am-5:14 pm
1 stop6h 44m
San Antonio
Sun 3/8
6:06 pm-10:41 pm
1 stop6h 35m
$344
PortlandSan Antonio
PDX - SAT
PDXSAT
Portland
Tue 12/30
8:32 pm-5:05 am
1 stop6h 33m
San Antonio
Tue 1/6
6:25 am-12:13 pm
1 stop7h 48m
$346
Showing 1-10 of 22 results
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 December.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Portland-San Antonio flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.
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?
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 November 28, 2025.
Booking 41 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, September is the cheapest month in which you can book a flight from Portland to San Antonio (average of $148). Flying from Portland to San Antonio in March is currently the most expensive (average of $217). 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.
What is the cheapest time of day to fly from PDX to SAT?
Find hourly flight availability from Portland to San Antonio. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 4, 2025.
It’s optimal to fly from Portland to San Antonio in the evening. By choosing this option you can save up to 15% on the cost of your flight, compared to a flight in the afternoon.
What is the cheapest day to fly from Portland to San Antonio?
Use this chart to determine the cheapest time to fly round-trip from Portland to San Antonio. Price data was last updated on December 16, 2024.
Travelers seeking maximum savings on their Portland to San Antonio flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
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 December 4, 2025.
Read reviews from past customers who have flown Southwest, Delta, and United 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
Food
7.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Overall
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Overall
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Overall
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Overall
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Overall
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Comfort
8.0
Entertainment
7.5
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
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.
Traveling to a place near San Antonio?
Book flights to San Antonio if you plan to visit one of these locationsNew Braunfels
Kerrville
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Alternative routes for Portland to San Antonio
See prices for flight routes from nearby airports that may be better suited for you.
Top 7 airlines flying from Portland to San Antonio
Discover the top 7 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 December 4, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$136 | Average$217 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$144 | Average$275 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$226 | Average$383 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$247 | Average$676 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$276 | Average$386 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$284 | Average$418 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$292 | Average$437 | FlexibilityNo cancel fee | On-time63% |