PDX - SAT

$86 Find Cheap Flights from Portland to San Antonio

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to San Antonio departing on 4/21. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to San Antonio

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to San Antonio.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Portland to San Antonio.
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Everything you should know

Cheapest round-trip
$171
Overall average: $378
Frontier
Tue 4/28Wed 5/6
PDX - SAT • 1 stop
Cheapest one-way
$78
Typical prices: $196-$325
Frontier
Tue 4/21
PDX - SAT • 1 stop
Top airlines
Cheapest • from $171 (round-trip)
Best reviews • 8.0 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Portland and San Antonio. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $374 (round-trip)
Shortest trip • 5h 25m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 31% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 25% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to San Antonio!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Portland to San Antonio (PDX-SAT)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to San Antonio that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Portland to San Antonio

Tue, Apr 28 - Wed, May 6
Frontier Logo
12:38 pm - 3:53 pm
PDX
-
SAT
25h 15m
1 stop
Frontier Logo
7:54 pm - 4:46 pm
SAT
-
PDX
22h 52m
1 stop
$171Frontier
Wed, Apr 29 - Wed, May 6
Frontier Logo
12:38 pm - 2:15 pm
PDX
-
SAT
23h 37m
1 stop
Frontier Logo
7:54 pm - 4:46 pm
SAT
-
PDX
22h 52m
1 stop
$196Frontier
Tue, Apr 14 - Mon, Apr 20
Frontier Logo
1:48 pm - 3:53 pm
PDX
-
SAT
24h 05m
1 stop
Frontier Logo
3:00 pm - 11:52 am
SAT
-
PDX
22h 52m
1 stop
$216Frontier
Wed, Apr 29 - Wed, May 6
Frontier Logo
12:38 pm - 2:15 pm
PDX
-
SAT
23h 37m
1 stop
Frontier Logo
8:59 pm - 8:51 pm
SAT
-
PDX
25h 52m
1 stop
$221Frontier
Fri, May 1 - Wed, May 6
Frontier Logo
11:48 am - 3:09 pm
PDX
-
SAT
25h 21m
1 stop
Frontier Logo
7:54 pm - 4:46 pm
SAT
-
PDX
22h 52m
1 stop
$236Frontier
Mon, Apr 13 - Thu, Apr 16
Frontier Logo
11:58 am - 12:19 am
PDX
-
SAT
10h 21m
1 stop
Frontier Logo
3:00 pm - 11:03 am
SAT
-
PDX
22h 03m
1 stop
$241Frontier
Wed, Apr 22 - Fri, Apr 24
Frontier Logo
12:38 pm - 2:15 pm
PDX
-
SAT
23h 37m
1 stop
Frontier Logo
3:00 pm - 11:42 am
SAT
-
PDX
22h 42m
1 stop
$243Frontier
Thu, Apr 30 - Sun, May 3
Frontier Logo
11:58 am - 2:15 pm
PDX
-
SAT
24h 17m
1 stop
Frontier Logo
2:59 pm - 11:03 am
SAT
-
PDX
22h 04m
1 stop
$252Frontier
Fri, Apr 10 - Tue, Apr 14
Frontier Logo
11:58 am - 12:19 am
PDX
-
SAT
10h 21m
1 stop
Frontier Logo
4:04 pm - 11:38 am
SAT
-
PDX
21h 34m
1 stop
$254Frontier
Tue, Apr 21 - Mon, Apr 27
Frontier Logo
12:38 pm - 3:53 pm
PDX
-
SAT
25h 15m
1 stop
Frontier Logo
3:00 pm - 11:52 am
SAT
-
PDX
22h 52m
1 stop
$255Frontier
Booking Insights

KAYAK's insights & trends for Portland to San Antonio flights

Get data-powered insights and trends into flights from Portland to San Antonio to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Portland to San Antonio?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to San Antonio, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Portland to San Antonio is August, where tickets cost $300 (return) on average. On the other hand, the most expensive months are December and March, where the average cost of round-trip tickets is $487 and $477 respectively.

How far in advance should I book a flight from Portland to San Antonio?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Portland to San Antonio, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Portland to San Antonio, you should book around 5 weeks before departure, which saves you about 31% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$78
Best time to beat the crowds but there is an average 3% increase in price.
Most popular time to fly and prices are also 6% lower on average.
Flight from Portland to San Antonio

When to book flights from Portland to San Antonio

Are your dates flexible? Find out the best times to travel from Portland to San Antonio based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Portland to San Antonio

  • What parking options are available at Portland International Airport?

    Portland International Airport offers a variety of safe parking options to passengers at different rates, which include short-term parking, long-term parking, economy parking, and valet parking. The cheapest parking option is the economy parking lot, while valet parking is the most expensive but most convenient. Passengers using the airport’s parking can pay using Visa, MasterCard, Discover, American Express, debit cards, and cash.

  • What accessibility services are provided at San Antonio International Airport?

    San Antonio International Airport provides passengers with multiple accessibility facilities to improve the passenger experience. These facilities include designated parking for disabled passengers and family and accessible restrooms in each of the terminals. Additionally, the airport uses Aira to give assistance to passengers with visual impairments, as well as providing TTY phones at the gate concourse and ticket counter lobby of Terminal A, and concourse walkway at Terminal B.

  • How do I get from downtown Portland to Portland International Airport?

    Portland’s light rail system is the most convenient method to go from Portland's downtown to the airport. The travel from downtown Portland to the airport on the MAX Red Line takes less than 40min. Every day at 4:45 a.m., the first train arrives at the airport. Alternatively, you can drive to the airport or take a taxi, which will save you approximately 20min.

  • Is Portland International Airport child friendly?

    When in Portland International Airport with children, make sure to visit the kids’ play areas, one of which is located close to gate C17 on Concourse C, and the other before security close to the D/E security checkpoint. The airport also provides two nursing rooms at the main terminal at Concourse B and D for the convenience of breastfeeding moms.

  • What is the cheapest flight from Portland to San Antonio?

    In the last 3 days, the lowest price for a flight from Portland to San Antonio was $78 for a one-way ticket and $171 for a round-trip.

  • Do I need a passport to fly between Portland and San Antonio?

    No

  • Which airports will I be using when flying from Portland to San Antonio?

    Portland and San Antonio are both served by 1 main airport. You will leave Portland from Portland and will be arriving at San Antonio.

  • Which aircraft models fly most regularly from Portland to San Antonio?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Portland to San Antonio?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Portland and San Antonio, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Portland to San Antonio, Southwest or Delta?

    The two airlines most popular with KAYAK users for flights from Portland to San Antonio are Southwest and Delta. With an average price for the route of $429 and an overall rating of 8.0, Southwest is the most popular choice. Delta is also a great choice for the route, with an average price of $400 and an overall rating of 7.9.

  • How does KAYAK find such low prices on flights from Portland to San Antonio?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Portland to San Antonio.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portland to San Antonio?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Antonio from Portland is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Portland to San Antonio?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Antonio with an airline and back to Portland with another airline. Booking your flights between Portland and SAT can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portland to San Antonio?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Antonio from Portland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Portland to San Antonio

  • Travelers exploring flights from Portland to San Antonio will find themselves departing from Portland International Airport. When taking a domestic flight out of Portland International Airport (PDX), it is recommended that you arrive at least 2h before your scheduled time of departure. Arriving early will allow you to go through the TSA security checks and check in.
  • If you happen to lose any of your items when moving through Portland International Airport, head on over to the Lost and Found Office located in the Baggage Level at the terminal. The office is open daily from 10 a.m. to 5 p.m.
  • When traveling from Portland International Airport, make sure to check out the art display in the terminal that exhibits the finest works of art from the region’s artists. Additionally, the airport welcomes volunteer musicians who perform in the airport terminal to offer a unique airport experience.
  • On touching down at San Antonio International Airport (SAT), make sure to visit the lounges available in the airport where you can enjoy a variety of services, such as free high-speed Wi-Fi, and food and drinks. The USO Lounge is located outside security in Terminal B while the United Airlines United Club Lounge is located inside security.
  • You have multiple options to get to downtown San Antonio from San Antonio International Airport. If traveling lightly, you can choose to use the Line 5 bus that will take you approximately 30min to get to the city. If you have more luggage or would like to get to San Antonio quicker, take a taxi or drive, which will take you approximately 12min.

Reviews of the top 5 airlines serving from Portland to San Antonio

 
See real verified KAYAK customer reviews for airlines flying from Portland to San Antonio. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Portland to San Antonio? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4324 reviews
8.6Crew
8.1Boarding
8.0Comfort
7.5Entertainment
7.0Food
Airline reviews

I elected to pay for the upgrades and found very little difference

6.0 GoodChris, Mar 2026
DAL - SAT
Read more Southwest reviews

I elected to pay for the upgrades and found very little difference

The new seating arrangement is so over priced for what you get.

Snacks are always pretzels. Why can't you also offer peanuts ?

Flight was hours late, unable to sit next to spouse, I have had so much better experiences. Substantially better, only saving grace was that it was a short flight.

An entire day of delays. Cost lots of money. Meals and a hotel.

Only downside was the legroom and seat width, which is always a problem unless I spend more for a premium seat.

Great flight but super high price. Glad it was a business trip and not personal

On time. Friendly staff. Took to long to pre bord all the specialty groups. Cramped small plane

No delays and arrived to destination 30 min early. Staff was super friendly.

Everything a cheap airline should be at normal airline rates.

Entertainment is ok! Boarding and seat with zone is terrible. I paid for the seats but you didn’t give me what I paid for which is exit isles.

the crew cancel the morning service due to the weather. Then the flight got deverted to Nashville . we were on the ground for over two hours the only gave us water once... no food or any snacks.... the crew should have handled better and offered something to passengers.

My recent experience was excellent on Delta! I flew with Delta Comfort and I was really comfortable in my seat. I enjoyed the in-flight service. The flight attendants were so friendly and hospitable. I love the snack on the flight as well. This was my first time flying on Delta and I will definitely consider flying with them again.

My flight was cencaled due with the bad weather on Sunday the crew was poorly mistaken my luggage supposed depart with my flight instead I didn’t have my luggage for almost 3 days the website is poorly respond to my complain until I have someone to do it my connection smooth their not even respon or email me even the have my luggage

Delta needs to step its game up get a more reliable internet service. Internet service was non-existent for this flight.

Mechanical Delay of over an hour with multiple gate changes. Entertainment system down for rejuvenation.

I had a flight cancel and had it rerouted. When the rerouted they put me at a window seat instead of an isle. It was hard sitting by the window because the couple with masks on were making out. I get motion sickness which is why I need to have the isle seat.

NEVER MADE THE FLIGHT BECAUSE DELTA SAID THEY CAN NOT

THEY FAILED ME AND I NEVER GOT ON THE FLIGHT BECAUSE IT WAS SO DELAYED! I ENDED UP HAVING TO PAY OUT OF POCKET FOR A HOTEL AND STAY IN NASHVILLE TO CATCH A FLIGHT FOR THE FOLLOWING DAY. DELTA IS POOR CUSTOMER SERVICE>

8 hours late and the plane smelled like urine, that smell in the morning when your child wet the bed in the night.

My flight was canceled a few hours before boarding. I was rebooked on Copa airlines and missed an important meeting .

Everything was on time and service on the flight was great!

The travel company that you have on your site did me so wrong. I don’t know how it happened, but they put my son‘s name on my plane ticket flying to Vietnam. Along with his birthday. They would not have let me fly from Fort Myers to Ho Chi Minh City. I don’t think that I can ever use your service again. I typed my information into the browser along with my passport number and four days before I’m leaving I have to quickly search another ticket to fly out here.

Good flight. Efficient boarding and competent flight crew. No problems until we arrived at our destination gate. We were early so there was an aircraft at the gate that had to move before we could pull in. Then, due to the type of aircraft we flew, the cabin door could not be opened until some luggage from the cargo bay was offloaded to preserve center of gravity characteristics. So, that further delayed deplaning. Despite being 20 minutes early on landing, we ended up being 5 to 10 minutes late after all the delays.

This trip did not start off well. The inbound flight was delayed about 20 minutes. Then, after initial onboarding, the passengers had to deplane due to a mechanical problem. That took about 30 minutes to fix and be cleared. Then, reboarding was chaotic. It took a long time to sort passengers and two passengers on standby were ticketed but there was no seat. So, they had to deplane. One of the flight crew was trying to help passengers figure out a place to put their carry-on bags and that took more time. In the end, our scheduled 10:30 am departure did not actually take off until about 12:05 pm CST. The flight itself was long but we got to Houston. Some passengers missed their connecting flights and had to rebook. Not the best of flights I've had.

Complimentary light meal would be appreciated. But great flight crew service on all legs

Everything was great except for the boarding process. Everyone is lining up all at the same time and it’s hard to tell between the groups as they are way too large.

Very old flight - time to retire it for newer airplanes

Do not like the size of the overhead bin. I think staff should monitor the size of suitcases that are being carried on by passengers to ensure they meet the size requirement.

Everything except the food and entertainment. It was a great experience though

Terrible planning. And even worse gate agents. Absolutely rude behavior.

Rough flight No beverage service due to turbulence Bottom Seat cushion was non existent

They put me on an earlier and I got home sooner

Not good. One of my luggage is missing. And until now they can’t find it

Delay after delay with little communication then AA lost my luggage and at airport would not assist just said scan this QR code to track your luggage and submit a claim. However QR code provided did not work so have to go back to airport

Where do I start!! I was delayed with my flight from Dallas to Tampa. On the way back from Tampa to Dallas the flight was delayed over 4 hours+. I was put on another flight that was also delayed but not as long. Traveling on American Airlines is becoming exhausing.

Dloght delayed by 2.5 hrs . Common theme in my last four american floghts

The flight attendants and the service is getting worse by the day.

They are rarely on time! Very hard to plan your travels when flights or connections keep getting delayed.

Forced to check bags. Crew uninterested in collecting trash. Unclean seats.

More inflight connection. And leg space is horrible. And the paying for baggage I'd ridiculous!!!

My flight was originally from SAT to MCO connecting from MCO to ORD. We got diverted to ATL and than Frontier staff there was sooo un helpful first they said they couldn’t give us any accommodation since our flight first got delayed that cancelled and now it’s 221am and I am still in ATL since they said they need to create a new flight my final destination is ORD and I have been delayed twice and cancelled. With no real help the frontier app didn’t work no email updates over all such a horrible experience

There's no seats that lean back with little leg space i wad uncomfortable the entire flight. Your charges for extra baggage is despicable and costly!!

Remind customers of the need to have passport or new ID for boarding.

Flight was canceled. Most upsetting was message from Kayak, stating that the flight was canceled and click with Kayak for details regarding rebook, refund details. THERE'S NO INFORMATION PROVIDED BY KAYAK EXCEPT THAT FLIGHT IS CANCELED. AND NOW THIS SURVEY TO FIND OUT HOW WAS THE FLIGHT !!!!!!!

The flight never took off and we spent 7 hours at the airport

Gate not determined until I got to the airport - hard to plan the trip to the airport.

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

Frontier.. nickel and dime add-ons. Flight late, on time, late again, last minute gate change, arrival gate required a shuttle to the terminal. They sure keep you guessing.. if you like a little chaos and airport anxiety, this is the airline for you!

This is my second time flying with Frontier. My current experience was very favorable. The staff from the gate to the plane was friendly, warm and professional. The food options lacked in my opinion. This area needs some attention in my opinion.

Everything you need to know for your flight from Portland to San Antonio

Information on your arrival and departure airports