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$69+ 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 9/7. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SAT
Jul 7 — Jul 141
Mon 7/7
Mon 7/14
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 19 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 July 2, 2025.

Round-trip from

$164
(Priceline)

One-way from

$69
(Priceline)

Popular in

June

Cheapest in

August

Average price

$388
From Portland to San Antonio
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One-way flight from Portland to San Antonio
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Highest demand for flights based on searches. 9% potential increase in price ($40 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 2, 2025.

This Priceline deal was found by Cheapflights users on 7/2. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/296:35 amPDX - SAT
1 stop9h 27mFrontier
Tue 8/56:59 pmSAT - PDX
1 stop6h 25mFrontier
Deal found 7/2$164
This Priceline deal was found by Cheapflights users on 7/1. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/412:07 pmPDX - SAT
1 stop6h 30mMultiple Airlines
Mon 9/88:20 pmSAT - PDX
1 stop5h 52mMultiple Airlines
Deal found 7/1$165
This FlightHub deal was found by Cheapflights users on 7/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1110:23 amPDX - SAT
1 stop6h 13mSpirit Airlines
Thu 8/142:50 pmSAT - PDX
1 stop6h 07mSpirit Airlines
Deal found 7/1$197

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 July 2, 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

Tue 7/29

6:35 am-6:02 pm

1 stop9h 27m

San Antonio

Tue 8/5

6:59 pm-11:24 pm

1 stop6h 25m

$164

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Thu 9/4

12:07 pm-8:37 pm

1 stop6h 30m

San Antonio

Mon 9/8

8:20 pm-12:12 am

1 stop5h 52m

$165

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Mon 8/11

10:23 am-6:36 pm

1 stop6h 13m

San Antonio

Thu 8/14

2:50 pm-6:57 pm

1 stop6h 07m

$197

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Sun 9/7

11:13 am-8:48 pm

1 stop7h 35m

$69

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Tue 7/22

10:23 am-6:36 pm

1 stop6h 13m

$87

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Thu 11/27

9:30 pm-5:38 am

1 stop6h 08m

$135

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Mon 8/4

12:40 am-11:46 am

1 stop9h 06m

$136

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Tue 8/19

10:55 am-10:58 pm

2 stops10h 03m

$141

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/30

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 June 27, 2025.

Booking 19 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 July 2, 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.

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 July 2, 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
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

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
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

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
4,272 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

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
7,975 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

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
8,861 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Spirit Airlines
6.3
Okay
8,103 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Overall

8.0

Entertainment

7.1

Crew

8.5

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 Frontier is currently your cheapest option to San Antonio, with prices starting at $164. Another option worth looking into is Spirit Airlines, starting at $197 round trip. Frontier is currently priced 57% below the average price you’ll pay for this route.

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

    $69 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Spirit Airlines and Delta, with prices starting from $87 and $136, 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 Larimer Square 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 Larimer Square can do so by traveling 18.4 mi, 18.6 mi, and 18.9 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, The Colosseum at Caesars Palace, and Fountains of Bellagio more than any other notable places. Fremont Street Experience, The 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 $54 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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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 July 2, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$112Average$257FlexibilityNo cancel feeOn-time65%
FrontierCheapest$118Average$215FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$262Average$491FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$268Average$377FlexibilityNo cancel feeOn-time71%
DeltaCheapest$284Average$378FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$284Average$438FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$308Average$436FlexibilityNo cancel feeOn-time63%

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