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$55+ 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 1/1. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SAT
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
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Find cheap flights from Portland to San Antonio with Cheapflights

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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

Find flight deals from Portland to San Antonio

Cheapest flights from Portland to San Antonio
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 October 29, 2025.

This Mytrip deal was found by Cheapflights users on 10/28. 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.
Fri 11/143:26 pmPDX - SAT
1 stop20h 51mFrontier
Mon 11/178:25 pmSAT - PDX
1 stop17h 31mFrontier
Deal found 10/28$184
This Booking.com deal was found by Cheapflights users on 10/27. 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.
Sun 11/163:26 pmPDX - SAT
1 stop26h 04mFrontier
Thu 11/202:08 pmSAT - PDX
1 stop25h 00mFrontier
Deal found 10/27$204
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1312:52 pmPDX - SAT
2 stops22h 27mFrontier
Sun 11/169:59 amSAT - PDX
1 stop25h 19mFrontier
Deal found 10/28$221
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/412:51 pmPDX - SAT
1 stop28h 09mMultiple Airlines
Mon 12/85:40 amSAT - PDX
1 stop12h 57mMultiple Airlines
Deal found 10/28$223
This Booking.com deal was found by Cheapflights users on 10/26. 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.
Fri 11/73:26 pmPDX - SAT
1 stop20h 51mFrontier
Mon 11/108:25 pmSAT - PDX
1 stop17h 31mFrontier
Deal found 10/26$230
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/111:26 pmPDX - SAT
2 stops32h 19mMultiple Airlines
Sat 11/153:12 pmSAT - PDX
1 stop22h 44mMultiple Airlines
Deal found 10/27$245
This Kiwi.com deal was found by Cheapflights users on 10/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/239:44 pmPDX - SAT
2 stops33h 39mFrontier
Sun 12/286:45 amSAT - PDX
1 stop6h 58mFrontier
Deal found 10/27$255
This Delta deal was found by Cheapflights users on 10/28. 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 12/39:10 amPDX - SAT
2 stops12h 39mDelta
Tue 12/96:00 amSAT - PDX
2 stops11h 33mDelta
Deal found 10/28$256
This Kiwi.com deal was found by Cheapflights users on 10/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/143:26 pmPDX - SAT
1 stop20h 51mMultiple Airlines
Mon 11/176:45 amSAT - PDX
2 stops15h 14mMultiple Airlines
Deal found 10/28$259

Cheap 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 October 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$184
(Mytrip)

One-way from

$55
(Trip.com)

Popular in

December

Cheapest in

August

Average price

$356
Provider with most accurate pricing for Portland-San Antonio flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-San Antonio flights.
Search Deals
From Portland to San Antonio
Search Deals
One-way flight from Portland to San Antonio
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($16 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

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 October 29, 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

Thu 12/4

12:51 pm-7:00 pm

1 stop28h 09m

San Antonio

Mon 12/8

5:40 am-4:37 pm

1 stop12h 57m

$223

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Wed 12/3

2:23 pm-12:37 am

2 stops8h 14m

San Antonio

Tue 12/9

6:00 am-3:33 pm

2 stops11h 33m

$256

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Fri 12/12

2:23 pm-12:37 am

2 stops8h 14m

San Antonio

Sun 12/14

6:00 am-3:33 pm

2 stops11h 33m

$256

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Fri 12/5

9:10 am-11:49 pm

2 stops12h 39m

San Antonio

Mon 12/8

7:05 am-3:33 pm

2 stops10h 28m

$274

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Thu 12/4

2:23 pm-12:37 am

2 stops8h 14m

San Antonio

Mon 12/8

6:00 am-3:33 pm

2 stops11h 33m

$274

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Tue 1/13

6:00 am-3:45 pm

1 stop7h 45m

San Antonio

Tue 1/27

10:10 am-3:40 pm

2 stops7h 30m

$290

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Fri 12/5

12:55 pm-2:15 pm

2 stops23h 20m

San Antonio

Mon 12/8

5:40 am-4:37 pm

1 stop12h 57m

$291

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Tue 12/2

5:05 pm-12:37 am

1 stop5h 32m

San Antonio

Thu 12/4

11:51 am-10:40 pm

2 stops12h 49m

$301

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Fri 2/20

9:40 am-5:58 pm

1 stop6h 18m

$139

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Wed 2/18

8:40 am-5:58 pm

1 stop7h 18m

$139

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 19 results
1
2

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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust 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 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 October 24, 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 $222). 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 October 29, 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 October 29, 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.
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Crew

8.6

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Crew

8.6

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
7.9
Good
7,992 reviews
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Crew

8.6

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
8,999 reviews
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Crew

8.6

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,032 reviews
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Crew

8.6

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,124 reviews
Southwest
8.0
Very good
4,241 reviews

Boarding

8.1

Crew

8.6

Overall

8.0

Food

7.0

Entertainment

7.5

Comfort

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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.

  • How long is the flight from Portland to San Antonio?

    There are many flights that can get you from Portland to San Antonio in 8h 14m. Fly via Delta to get the fastest option. The distance between Portland and San Antonio is about 1712 mi.

  • What are the cheapest airlines flying from Portland to San Antonio round-trip?

    Flying on Frontier is currently your cheapest option to San Antonio, with prices starting at $134. Additional round-trip tickets that might be worth considering are offered by Spirit Airlines and American Airlines, with the lowest prices starting at $144 and $244, respectively. Frontier is currently priced 64% below the average price you’ll pay for this route.

  • Where are the most common layover locations when flying from Portland to San Antonio?

    Portland to San Antonio flights have a layover in Las Vegas most often.

  • What are some popular things to do or see while on a layover in Las Vegas?

    Fremont Street Experience, Fountains of Bellagio, and Stratosphere Tower are currently the most popular points of interest in Las Vegas at the moment. Those on a layover in Las Vegas interested in visiting Fremont Street Experience, Fountains of Bellagio, or Stratosphere Tower can do so by traveling 5.9 mi, 2.3 mi, and 4.3 mi, respectively from Las Vegas Harry Reid Intl. Those landing in Las Vegas looking to spend some time exploring during their layover can rent a car for about $57 per day.

  • Where are the least popular layover locations for Portland to San Antonio flights?

    The least popular layover on flights from Portland to San Antonio is Las Vegas.

  • Can I find deals for flights from Portland to San Antonio that include hotel bookings?

    Yes. In addition to deals on Portland to San Antonio flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Portland to San Antonio?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Portland to San Antonio.

  • Can I find deals for business class flights from Portland to San Antonio?

    Yes. Cheapflights offers flight deals from Portland to San Antonio by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • 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 $222). 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.

See more FAQs

Traveling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New 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.
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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 October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$134Average$222FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$144Average$275FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$244Average$373FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$247Average$453FlexibilityNo cancel feeOn-time75%
DeltaCheapest$276Average$384FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$278Average$412FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$300Average$435FlexibilityNo cancel feeOn-time63%

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