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$47+ 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 6/3. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SAT
May 6 — May 131
Tue 5/6
Tue 5/13
1 adult, Economy
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Cheapflights Tip: The best prices from Portland to San Antonio are usually found in August or September, booked 17 days in advance, depart on a Tuesday or Wednesday and return on a Saturday

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 May 1, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$273
(Mytrip)

One-way from

$57
(Cheapflightsfares)

Popular in

June

Cheapest in

August

Average price

$414
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. 6% potential increase in price ($27 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($7 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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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 May 1, 2025.

This Mytrip deal was found by Cheapflights users on 4/30. 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.
Sat 5/101:37 pmPDX - SAT
1 stop13h 27mSpirit Airlines
Mon 5/121:27 pmSAT - PDX
2 stops25h 15mSpirit Airlines
Deal found 4/30$273
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/265:20 pmPDX - SAT
1 stop5h 25mDelta
Sat 8/306:30 amSAT - PDX
1 stop7h 12mDelta
Deal found 4/29$287
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/37:01 pmPDX - SAT
1 stop7h 33mMultiple Airlines
Mon 5/53:22 pmSAT - PDX
1 stop11h 16mMultiple Airlines
Deal found 4/29$301
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Sat 6/284:16 pmPDX - SAT
1 stop5h 43mUnited Airlines
Tue 7/16:00 amSAT - PDX
1 stop8h 32mUnited Airlines
Deal found 4/30$303
This Frontier deal was found by Cheapflights users on 4/30. 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.
Fri 5/166:20 amPDX - SAT
1 stop5h 57mFrontier
Sun 5/188:25 pmSAT - PDX
1 stop6h 13mFrontier
Deal found 4/30$340
This American Airlines deal was found by Cheapflights users on 4/30. 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.
Mon 7/1412:59 amPDX - SAT
1 stop6h 14mAmerican Airlines
Thu 7/246:55 pmSAT - PDX
1 stop6h 27mAmerican Airlines
Deal found 4/30$342
This Southwest 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2610:55 amPDX - SAT
2 stops8h 55mSouthwest
Sat 8/306:35 amSAT - PDX
1 stop5h 50mSouthwest
Deal found 4/29$347
This Alaska Airlines 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/166:00 amPDX - SAT
1 stop6h 47mAlaska Airlines
Mon 10/207:00 amSAT - PDX
2 stops11h 49mAlaska Airlines
Deal found 4/29$635

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 May 1, 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

Sat 5/10

1:37 pm-5:04 am

1 stop13h 27m

San Antonio

Mon 5/12

1:27 pm-12:42 pm

2 stops25h 15m

$273

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Tue 8/26

5:20 pm-12:45 am

1 stop5h 25m

San Antonio

Sat 8/30

6:30 am-11:42 am

1 stop7h 12m

$287

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Sat 6/28

4:16 pm-11:59 pm

1 stop5h 43m

San Antonio

Tue 7/1

6:00 am-12:32 pm

1 stop8h 32m

$303

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Tue 7/15

2:35 pm-5:04 am

1 stop12h 29m

San Antonio

Thu 7/24

6:35 pm-10:46 pm

1 stop30h 11m

$311

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Fri 5/16

6:20 am-2:17 pm

1 stop5h 57m

San Antonio

Sun 5/18

8:25 pm-12:38 am

1 stop6h 13m

$340

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Mon 7/14

12:59 am-9:13 am

1 stop6h 14m

San Antonio

Thu 7/24

6:55 pm-11:22 pm

1 stop6h 27m

$342

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Tue 8/26

10:55 am-9:50 pm

2 stops8h 55m

San Antonio

Sat 8/30

6:35 am-10:25 am

1 stop5h 50m

$347

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Thu 10/16

6:00 am-2:47 pm

1 stop6h 47m

San Antonio

Mon 10/20

7:00 am-4:49 pm

2 stops11h 49m

$635

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Tue 6/3

5:40 pm-5:04 am

1 stop9h 24m

$47

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Mon 5/12

1:15 pm-5:04 am

1 stop13h 49m

$85

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 16 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 May.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy2 starsTrust Score*3 stars
CheapOairPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*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 CheapOair to be most consistent on Cheapflights vs. CheapOair Users can find the same prices on Portland-San Antonio flight deals on Cheapflights vs. CheapOair >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 CheapOair the most. CheapOair 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 April 25, 2025.

Booking 17 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 $295). Flying from Portland to San Antonio in March is currently the most expensive (average of $376). 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 May 1, 2025.

It’s optimal to fly from Portland to San Antonio in the evening. By choosing this option you can save up to 16% 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.

Rainfall in San Antonio by month

Plan your trip to San Antonio by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Antonio ranges from 1.6 - 3.7 inches per month. May is typically the wettest month, when rainfall can reach 3.7 in. December is typically the driest time to visit San Antonio when rainfall is around 1.6 in.

Temperature in San Antonio by month

Plan your trip to San Antonio by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Antonio, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

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 May 1, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta 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.
Alaska Airlines
8.0
Very good
9,968 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,968 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,294 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,934 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Boarding

8.2

Overall

8.0

Entertainment

7.1

Crew

8.5

Comfort

7.9

Food

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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.

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

    Flying on Spirit Airlines is currently your cheapest option to San Antonio, with prices starting at $273. Additional round-trip tickets that might be worth considering are offered by Delta and United Airlines, with the lowest prices starting at $287 and $303, respectively. Spirit Airlines is currently priced 29% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Portland to San Antonio one-way?

    $57 is the cheapest one-way deal found within the past few days, from Spirit Airlines. You may also be able to find cheap deals on Frontier and Delta, with prices starting from $88 and $144, respectively.

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

    Portland to San Antonio flights have a layover in Denver most often. Las Vegas is the second most popular location for layovers on flights from Portland to San Antonio.

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

    Coors Field, Paramount Theatre, and 16th Street Mall are currently the most popular points of interest in Denver at the moment. Those on a layover in Denver interested in visiting Coors Field, Paramount Theatre, or 16th Street Mall can do so by traveling 18.4 mi, 18.6 mi, and 18.7 mi, respectively from Denver Intl. Those landing in Denver looking to spend some time exploring during their layover can rent a car for about $42 per day.

  • What are some popular points of interest to see during a layover in Las Vegas?

    Las Vegas travelers tend to visit Fremont Street Experience, The Colosseum at Caesars Palace, and Stratosphere Tower more than any other notable places. Fremont Street Experience, The Colosseum at Caesars Palace, and Stratosphere Tower can be accessed by traveling approximately 5.9 mi, 2.6 mi, and 4.3 mi, respectively from Las Vegas Harry Reid Intl. Travelers can rent a car at Las Vegas Harry Reid Intl for an average daily rate of $60 to make sightseeing during their layover a little easier.

  • 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, August is the cheapest month in which you can book a flight from Portland to San Antonio (average of $295). Flying from Portland to San Antonio in March is currently the most expensive (average of $376). 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

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Book flights to Portland if you plan to visit one of these locations
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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 May 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$114Average$249FlexibilityNo cancel feeOn-time65%
FrontierCheapest$118Average$216FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$256Average$484FlexibilityNo cancel feeOn-time75%
DeltaCheapest$276Average$381FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$276Average$374FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$284Average$435FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$316Average$438FlexibilityNo cancel feeOn-time63%

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