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$71+ 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 4/26. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SAT
Mar 31 — Apr 71
Mon 3/31
Mon 4/7
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 66 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 March 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$277
(Delta)

One-way from

$71
(Priceline)

Popular in

June

Cheapest in

August

Average price

$455
Provider with most accurate pricing for Portland-San Antonio flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-San Antonio flights.
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From Portland to San Antonio
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One-way flight from Portland to San Antonio
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($33 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in March 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 March 26, 2025.

This Delta deal was found by Cheapflights users on 3/25. 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.
Thu 4/176:00 amPDX - SAT
1 stop9h 29mDelta
Thu 4/246:50 amSAT - PDX
1 stop7h 08mDelta
Deal found 3/25$277
This Mytrip deal was found by Cheapflights users on 3/25. 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.
Fri 4/117:01 pmPDX - SAT
2 stops28h 09mSpirit Airlines
Mon 4/147:25 pmSAT - PDX
1 stop24h 40mSpirit Airlines
Deal found 3/25$278
This Priceline deal was found by Cheapflights users on 3/25. 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.
Sun 6/15:40 pmPDX - SAT
1 stop9h 24mMultiple Airlines
Sun 6/87:50 pmSAT - PDX
1 stop6h 29mMultiple Airlines
Deal found 3/25$283
This Booking.com deal was found by Cheapflights users on 3/25. 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 4/39:21 pmPDX - SAT
1 stop17h 26mFrontier
Sat 4/58:02 pmSAT - PDX
1 stop14h 45mFrontier
Deal found 3/25$288
This Alaska Airlines deal was found by Cheapflights users on 3/25. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/93:45 pmPDX - SAT
1 stop6h 22mAlaska Airlines
Wed 9/177:00 amSAT - PDX
1 stop8h 44mAlaska Airlines
Deal found 3/25$346
This American Airlines deal was found by Cheapflights users on 3/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2511:59 pmPDX - SAT
1 stop8h 08mAmerican Airlines
Sun 4/275:50 amSAT - PDX
1 stop6h 48mAmerican Airlines
Deal found 3/25$352
This United Airlines deal was found by Cheapflights users on 3/25. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/168:45 amPDX - SAT
2 stops8h 51mUnited Airlines
Thu 4/244:52 pmSAT - PDX
1 stop7h 56mUnited Airlines
Deal found 3/25$362
This Southwest deal was found by Cheapflights users on 3/25. 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.
Fri 7/47:00 amPDX - SAT
2 stops7h 25mSouthwest
Thu 7/109:15 pmSAT - PDX
1 stop5h 50mSouthwest
Deal found 3/25$387

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 March 26, 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 4/17

6:00 am-5:29 pm

1 stop9h 29m

San Antonio

Thu 4/24

6:50 am-11:58 am

1 stop7h 08m

$277

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Fri 4/11

7:01 pm-1:10 am

2 stops28h 09m

San Antonio

Mon 4/14

7:25 pm-6:05 pm

1 stop24h 40m

$278

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Sun 6/1

5:40 pm-5:04 am

1 stop9h 24m

San Antonio

Sun 6/8

7:50 pm-12:19 am

1 stop6h 29m

$283

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Thu 4/17

6:40 am-7:01 pm

1 stop10h 21m

San Antonio

Fri 4/25

3:02 pm-12:42 am

1 stop11h 40m

$318

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Tue 9/9

3:45 pm-12:07 am

1 stop6h 22m

San Antonio

Sat 9/20

7:00 am-12:24 pm

1 stop7h 24m

$346

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Fri 4/25

11:59 pm-10:07 am

1 stop8h 08m

San Antonio

Sun 4/27

5:50 am-10:38 am

1 stop6h 48m

$352

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Wed 4/16

8:45 am-7:36 pm

2 stops8h 51m

San Antonio

Thu 4/24

4:52 pm-10:48 pm

1 stop7h 56m

$362

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Fri 7/4

7:00 am-4:25 pm

2 stops7h 25m

San Antonio

Thu 7/10

9:15 pm-1:05 am

1 stop5h 50m

$387

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Sat 4/26

7:01 pm-4:34 am

1 stop7h 33m

$71

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Mon 4/14

12:59 am-11:45 am

1 stop8h 46m

$129

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Showing 1-10 of 15 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 March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*3 stars
CheapOairPrice 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 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.
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 March 21, 2025.

Booking 66 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 March 26, 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 March 26, 2025.
Read reviews from past customers who have flown Southwest, Alaska Airlines 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.
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.1
Very good
4,273 reviews
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Alaska Airlines
8.0
Very good
9,789 reviews
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,891 reviews
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,608 reviews
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Overall

8.1

Boarding

8.2

Entertainment

7.6

Food

7.1

Comfort

8.1

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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 Delta is currently your cheapest option to San Antonio, with prices starting at $277. Additional round-trip tickets that might be worth considering are offered by Spirit Airlines and Frontier, with the lowest prices starting at $278 and $318, respectively. Delta is currently priced 28% below the average price you’ll pay for this route.

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

    $71 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 Delta and American Airlines, with prices starting from $129 and $209, 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 $56 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, Colosseum at Caesars Palace, and Fountains of Bellagio more than any other notable places. Fremont Street Experience, Colosseum at Caesars Palace, and Fountains of Bellagio can be accessed by traveling approximately 5.9 mi, 2.6 mi, and 2.3 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 $63 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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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 March 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$115Average$271FlexibilityNo cancel feeOn-time65%
FrontierCheapest$118Average$218FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$256Average$480FlexibilityNo cancel feeOn-time75%
DeltaCheapest$277Average$381FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$278Average$382FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$284Average$440FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$316Average$436FlexibilityNo cancel feeOn-time63%
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