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$66+ 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 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SAT
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
1 adult, Economy
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Cheap 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 January 27, 2026.

This CheapOair deal was found by Cheapflights users on 1/26. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/221:48 pm
PDX
-
SAT
1 stop22h 31m
Frontier
Sat 4/253:34 pm
SAT
-
PDX
1 stop21h 29m
Frontier
Deal found 1/26$191
This Kiwi.com deal was found by Cheapflights users on 1/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/1212:04 pm
PDX
-
SAT
1 stop19h 02m
Frontier
Thu 3/1910:05 am
SAT
-
PDX
1 stop27h 04m
Frontier
Deal found 1/26$225
This CheapOair deal was found by Cheapflights users on 1/25. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/111:48 am
PDX
-
SAT
1 stop24h 51m
Frontier
Mon 5/43:14 pm
SAT
-
PDX
1 stop23h 48m
Frontier
Deal found 1/25$226
This Frontier deal was found by Cheapflights users on 1/25. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/912:04 pm
PDX
-
SAT
1 stop10h 13m
Frontier
Mon 3/166:45 am
SAT
-
PDX
1 stop6h 24m
Frontier
Deal found 1/25$228
This CheapOair deal was found by Cheapflights users on 1/24. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/912:27 pm
PDX
-
SAT
1 stop23h 52m
Frontier
Sat 5/163:34 pm
SAT
-
PDX
1 stop21h 29m
Frontier
Deal found 1/24$233
This Kiwi.com deal was found by Cheapflights users on 1/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/1512:04 pm
PDX
-
SAT
1 stop19h 02m
Frontier
Thu 3/1910:05 am
SAT
-
PDX
1 stop27h 04m
Frontier
Deal found 1/26$235
This American Airlines deal was found by Cheapflights users on 1/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/2411:40 pm
PDX
-
SAT
1 stop6h 43m
American Airlines
Tue 3/35:00 pm
SAT
-
PDX
1 stop9h 17m
American Airlines
Deal found 1/27$237
This United Airlines deal was found by Cheapflights users on 1/25. 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.
Tue 2/247:57 pm
PDX
-
SAT
2 stops10h 46m
United Airlines
Tue 3/34:45 pm
SAT
-
PDX
1 stop6h 30m
United Airlines
Deal found 1/25$242
This CheapOair deal was found by Cheapflights users on 1/26. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/111:48 am
PDX
-
SAT
1 stop24h 51m
Frontier
Sat 5/163:34 pm
SAT
-
PDX
1 stop21h 29m
Frontier
Deal found 1/26$247
This Orbitz deal was found by Cheapflights users on 1/25. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/72:37 pm
PDX
-
SAT
1 stop6h 37m
Multiple Airlines
Mon 4/136:45 am
SAT
-
PDX
1 stop6h 18m
Multiple Airlines
Deal found 1/25$259

Find 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 January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$191
(CheapOair)

One-way from

$66
(Kiwi.com)

Popular in

December

Cheapest in

August

Average price

$419
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. 10% potential increase in price ($48 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 January 27, 2026.
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 2/17

5:00 pm-12:41 am

1 stop5h 41m

San Antonio

Wed 2/25

7:00 am-12:02 pm

1 stop7h 02m

$237

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Tue 2/24

7:57 pm-8:43 am

2 stops10h 46m

San Antonio

Tue 3/3

4:45 pm-9:15 pm

1 stop6h 30m

$242

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Sat 2/28

7:57 pm-8:43 am

2 stops10h 46m

San Antonio

Tue 3/3

4:45 pm-9:15 pm

1 stop6h 30m

$270

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Wed 4/22

1:05 pm-11:32 pm

1 stop8h 27m

San Antonio

Sat 4/25

7:35 am-5:01 pm

2 stops11h 26m

$290

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Sat 4/4

10:30 pm-9:55 am

1 stop9h 25m

San Antonio

Sat 4/11

7:35 am-12:14 pm

1 stop6h 39m

$297

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Sat 2/21

2:05 pm-9:58 pm

1 stop5h 53m

San Antonio

Wed 3/4

2:49 pm-8:44 pm

1 stop7h 55m

$307

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Tue 2/24

5:00 pm-12:41 am

1 stop5h 41m

San Antonio

Tue 3/3

7:35 am-6:48 pm

2 stops13h 13m

$310

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Wed 4/22

7:05 am-5:10 pm

2 stops8h 05m

San Antonio

Wed 4/29

7:35 am-5:10 pm

2 stops11h 35m

$312

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Tue 2/24

11:25 am-9:55 pm

2 stops8h 30m

San Antonio

Tue 3/3

8:40 am-3:40 pm

2 stops9h 00m

$317

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Sat 4/4

11:59 pm-8:23 am

1 stop6h 24m

San Antonio

Thu 4/9

5:45 pm-11:42 pm

1 stop7h 57m

$318

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 22 results
1
2
3

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 January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice 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 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 January 23, 2026.

Booking 70 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 $217). 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.

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 January 27, 2026.
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
4,268 reviews

Overall

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

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
4,268 reviews
Southwest
8.0
Very good
4,268 reviews

Overall

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

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
8,118 reviews
Southwest
8.0
Very good
4,268 reviews

Overall

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

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
9,205 reviews
Southwest
8.0
Very good
4,268 reviews

Overall

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

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
11,197 reviews
Southwest
8.0
Very good
4,268 reviews

Overall

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

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
5.7
Fair
3,056 reviews
Southwest
8.0
Very good
4,268 reviews

Overall

8.0

Food

7.0

Crew

8.6

Entertainment

7.5

Boarding

8.1

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 5h 41m. Fly via Delta 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 $136. 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 $211, respectively. Frontier is currently priced 65% 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 Delta and American Airlines, with prices starting from $130 and $138, respectively.

  • 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 $217). 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

Browse thousands of different options on Cheapflights for your next trip

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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 January 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$136Average$211FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$144Average$276FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$211Average$388FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$237Average$407FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$269Average$380FlexibilityNo cancel feeOn-time75%
DeltaCheapest$270Average$383FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$286Average$432FlexibilityNo cancel feeOn-time63%

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