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$77+ 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 10/12. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SAT
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
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 41 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 September 11, 2025.

Round-trip from

$163
(Kiwi.com)

One-way from

$77
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$316
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. 3% potential increase in price ($15 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 September 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 September 11, 2025.

This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Sat 10/2512:43 pmPDX - SAT
1 stop20h 31mFrontier
Thu 10/308:43 pmSAT - PDX
1 stop17h 13mFrontier
Deal found 9/10$163
This Mytrip deal was found by Cheapflights users on 9/10. 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 10/36:05 amPDX - SAT
1 stop10h 25mFrontier
Sun 10/59:55 amSAT - PDX
1 stop16h 17mFrontier
Deal found 9/10$166
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Sat 9/207:15 amPDX - SAT
1 stop23h 55mFrontier
Sat 9/273:22 pmSAT - PDX
1 stop9h 12mFrontier
Deal found 9/11$169
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 9/256:05 amPDX - SAT
1 stop11h 10mFrontier
Sun 9/288:20 pmSAT - PDX
1 stop5h 52mFrontier
Deal found 9/10$174
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 51mFrontier
Mon 11/178:25 pmSAT - PDX
1 stop17h 31mFrontier
Deal found 9/9$176
This Kiwi.com deal was found by Cheapflights users on 9/11. 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.
Sat 9/207:15 amPDX - SAT
1 stop23h 55mFrontier
Fri 9/267:25 pmSAT - PDX
1 stop6h 47mFrontier
Deal found 9/11$177
This Kiwi.com deal was found by Cheapflights users on 9/9. 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 10/2412:43 pmPDX - SAT
1 stop25h 54mFrontier
Sun 10/268:26 pmSAT - PDX
1 stop17h 22mFrontier
Deal found 9/9$189
This Booking.com deal was found by Cheapflights users on 9/10. 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 10/1012:44 pmPDX - SAT
1 stop25h 53mFrontier
Fri 10/178:20 pmSAT - PDX
1 stop17h 28mFrontier
Deal found 9/10$192
This Kiwi.com deal was found by Cheapflights users on 9/10. 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.
Sat 9/277:15 amPDX - SAT
1 stop23h 55mMultiple Airlines
Wed 10/16:27 amSAT - PDX
1 stop8h 00mMultiple Airlines
Deal found 9/10$195
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 10/1012:44 pmPDX - SAT
1 stop25h 53mMultiple Airlines
Tue 10/147:00 amSAT - PDX
2 stops30h 48mMultiple Airlines
Deal found 9/10$198

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 September 11, 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 2/21

8:40 am-5:58 pm

1 stop7h 18m

San Antonio

Sat 2/28

7:00 pm-12:03 am

1 stop7h 03m

$212

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Sat 10/25

5:05 am-1:47 pm

1 stop6h 42m

San Antonio

Sat 11/1

5:38 pm-9:49 pm

1 stop6h 11m

$213

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Sat 1/17

5:34 am-4:53 pm

2 stops9h 19m

San Antonio

Tue 1/20

8:30 am-1:45 pm

1 stop7h 15m

$226

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Tue 1/13

7:00 am-3:31 pm

1 stop6h 31m

San Antonio

Tue 1/20

4:04 pm-12:43 am

2 stops10h 39m

$226

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Thu 10/2

6:20 am-2:29 pm

1 stop6h 09m

San Antonio

Mon 10/6

6:07 pm-11:43 pm

1 stop7h 36m

$233

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Wed 10/8

12:43 pm-7:41 pm

1 stop28h 58m

San Antonio

Wed 10/15

7:00 am-8:23 am

2 stops27h 23m

$239

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Sat 2/21

1:35 pm-10:13 pm

1 stop6h 38m

San Antonio

Sat 2/28

1:42 pm-8:05 pm

2 stops8h 23m

$255

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Sat 10/25

11:10 am-11:46 pm

2 stops10h 36m

San Antonio

Sat 11/1

6:00 am-11:45 am

1 stop7h 45m

$265

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Mon 1/19

7:00 am-3:31 pm

1 stop6h 31m

San Antonio

Tue 1/20

11:43 am-9:12 pm

2 stops11h 29m

$278

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Sat 1/17

8:30 am-9:21 pm

2 stops10h 51m

San Antonio

Mon 1/19

5:59 pm-10:58 pm

1 stop6h 59m

$278

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 22 results
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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 August 29, 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, 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 September 11, 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 September 11, 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
4,248 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

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
4,248 reviews
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

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
8.0
Very good
7,960 reviews
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

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
8,937 reviews
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

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
10,000 reviews
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

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
3,177 reviews
Southwest
8.0
Very good
4,248 reviews

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

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 6h 42m. Fly via Hawaiian Airlines, American Airlines, or United Airlines to get the fastest option. The distance between Portland and San Antonio is about 1712 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 $118. 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 $246, respectively. Frontier is currently priced 69% 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 The Colosseum at Caesars Palace 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 The Colosseum at Caesars Palace can do so by traveling 5.9 mi, 2.3 mi, and 2.6 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 $52 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, 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

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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$118Average$215FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$144Average$276FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$246Average$373FlexibilityNo cancel feeOn-time71%
DeltaCheapest$276Average$379FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$277Average$491FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$284Average$423FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$300Average$434FlexibilityNo cancel feeOn-time63%

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