PDX - SAT

$131 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 8/11. 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
$250
Typical prices: $270-$446
Frontier
Mon 8/10Thu 8/20
PDX - SAT • 1 stop
Cheapest one-way
$131
Typical prices: $150-$325
Frontier
Tue 8/11
PDX - SAT • 1 stop
Top airlines
Cheapest • from $250 (round-trip)
Best reviews • 7.9 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 $432 (round-trip)
Shortest trip • 5h 27m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 33% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 23% 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

Mon, Aug 10 - Thu, Aug 20
Frontier Logo
5:49 pm - 8:37 pm
PDX
-
SAT
24h 48m
1 stop
Frontier Logo
10:24 pm - 5:21 pm
SAT
-
PDX
20h 57m
1 stop
$250Frontier
Wed, Aug 19 - Sat, Aug 22
Frontier Logo
5:56 pm - 6:54 pm
PDX
-
SAT
22h 58m
1 stop
Frontier Logo
7:49 pm - 5:11 pm
SAT
-
PDX
23h 22m
1 stop
$260Frontier
Mon, Aug 10 - Thu, Aug 20
Frontier Logo
12:20 pm - 6:54 pm
PDX
-
SAT
28h 34m
1 stop
Frontier Logo
10:24 pm - 5:21 pm
SAT
-
PDX
20h 57m
1 stop
$274Frontier
Fri, Aug 7 - Tue, Aug 11
Frontier Logo
5:49 pm - 8:37 pm
PDX
-
SAT
24h 48m
1 stop
Frontier Logo
7:49 pm - 4:36 pm
SAT
-
PDX
22h 47m
1 stop
$277Frontier
Thu, Aug 6 - Sun, Aug 9
Frontier Logo
12:20 pm - 6:54 pm
PDX
-
SAT
28h 34m
1 stop
Frontier Logo
7:49 pm - 4:51 pm
SAT
-
PDX
23h 02m
1 stop
$281Frontier
Fri, Aug 14 - Sun, Aug 16
Frontier Logo
12:20 pm - 6:54 pm
PDX
-
SAT
28h 34m
1 stop
Frontier Logo
9:32 pm - 4:54 pm
SAT
-
PDX
21h 22m
1 stop
$288Frontier
Wed, Jul 15 - Wed, Jul 22
Frontier Logo
5:21 pm - 6:44 pm
PDX
-
SAT
23h 23m
1 stop
Frontier Logo
7:39 pm - 4:51 pm
SAT
-
PDX
23h 12m
1 stop
$290Frontier
Sat, Aug 8 - Tue, Aug 11
Frontier Logo
12:20 pm - 6:54 pm
PDX
-
SAT
28h 34m
1 stop
Frontier Logo
7:49 pm - 4:36 pm
SAT
-
PDX
22h 47m
1 stop
$294Frontier
Tue, Jul 14 - Sun, Jul 19
Frontier Logo
5:16 pm - 6:44 pm
PDX
-
SAT
23h 28m
1 stop
Frontier Logo
7:39 pm - 4:51 pm
SAT
-
PDX
23h 12m
1 stop
$295Frontier
Sat, Aug 1 - Thu, Aug 6
Frontier Logo
12:20 pm - 6:44 pm
PDX
-
SAT
28h 24m
1 stop
Frontier Logo
7:49 pm - 4:51 pm
SAT
-
PDX
23h 02m
1 stop
$297Frontier
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.

How much is a round-trip flight from Portland to San Antonio?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Portland to San Antonio departing in August.

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 September, where tickets cost $318 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $507 and $478 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 4 weeks before departure, which saves you about 33% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$131
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly and prices are also 2% 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 5 days, the lowest price for a flight from Portland to San Antonio was $131 for a one-way ticket and $250 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 Alaska Airlines?

    The two airlines most popular with KAYAK users for flights from Portland to San Antonio are Southwest and Alaska Airlines. With an average price for the route of $438 and an overall rating of 7.9, Southwest is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $380 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.
7.9
SouthwestOverall score based on 4246 reviews
8.1Boarding
7.5Entertainment
7.0Food
8.0Comfort
8.6Crew
Airline reviews

SW can't get their wifi right. I upgrade to insure wifi service but the last two trips had intermittent service. Not worth the extra costs.

6.0 GoodAnonymous, Jun 2026
TPA - DAL
Read more Southwest reviews

SW can't get their wifi right. I upgrade to insure wifi service but the last two trips had intermittent service. Not worth the extra costs.

No gluten free snacks. Seats felt worn or bare bones even though it was a new 737 MAX 8.

One major problem that was very unprofessional and uncalled for. Plane landed and we had to wait 20 minutes to get off the plane since they were waiting for someone to come to the gate to drive the jetway. Southwest couldn't have someone available and waiting for the plane to land? Is there only one person in Hobby airport who knows to drive the jetway? Was he at lunch? In the bar? Uncomfortable and uncalled for!

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

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.

The Southwest employees (all two of them) were very nice and cheerful despite the fact the line to self-check a bag (simply drop it off) was hundreds of people long. Thank God I arrived early to the airport because I stood in this line for at least an hour. Once on the flight that had been delayed by an hour, we had no Wi-Fi and thus no entertainment. Finally, I hope the investor strong arm tactics against Southwest pay off in a short-term windfall to your C-Suite because the rest of you are screwed. I have been a faithful Southwest customer for 15 years due to everything you just got rid of. I'm flying to Idaho and Washington in October, both places I used to simply book with Southwest without a second thought now with Frontier (Washington) and United (Idaho) because they offer everything the "new" Southwest does but cheaper and at better times, destinations, etc. This really makes me sad...

It was really nice! I appreciate the gate attendant allowing families with small children to board early on in the process… that was very helpful! The internet service didn’t work with the app I was trying to use even though I paid the $8… other than that it was great! Oh and I should’ve asked for the whole cranberry cocktail can. That cup was about 2 sips…

I liked the boarding process with our loading group and numbers. I disliked that I couldn't guarantee our seats together. I didn't like that the Internet costs $8/ flight, but did love all the inflight options available through their app. I disliked no charging station at my seat for a 3+ hour flight.

Great! Although the flight was about 40 minutes delayed, the crew did a good job getting everything boarded quickly and efficiently.

It was good. I wish you had gluten free snacks for my husband.

Long story short, it was one of the better flight experiences I've had in some time when compared with other airlines.

Bus to plane was delayed for no apparent reason and our luggage was still on the belt when they shut it off. Took about 20 minutes to turn it back on to get our luggage.

I haven’t flown economy in over 20 years but it was not bad. Room by my feet for my bag and seat was roomy enough. Surprised in a good way.

Second flight in a row where the entertainment system is broken. 5 hour long flight with no entertainment and flight attendants did not seem interested in resolving the matter. Very shocked to be treated this poorly considering I paid for a first class experience and have Diamond Medallion status.

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Lounge in Lagos is terrible, food on board from Lagos to Atlanta was horrible. Only bright spot the cabin crew were awesome.

My seat had no padding, it was literally plywood with a plastic cover. I could not change seats on my 10 hour flight. My excitement for this trip helped me deal with the pain.

Our flight was delayed in Atlanta. The staff could have gave us an explanation for the delay and how long it would be.

The flights were on time- Great service Would have liked more options for food choices.

The brakes on the A220 are sensitive and uncomfortably grabby

the whole trip was smooth, and as comfortable as flying is these days. flight crew was friendly and very courteous and helpful.

Yet another flight in which beverage and snack service was skipped. Other that that, firmly mediocre. Landed early, to gate late due to congestion at the gates. Airline's fault or airports fault: unknown.

The flights were on time which was great give. It was holiday travel season and there’d been some weather issues. The only complaint and this is every time with United is the terrible seat design. The head rest is not built for comfort and having my neck bent forward for a cross country trip reminded me while I try not to take United flights as a rule.

This was a very average flight. The seat was out of alignment so more uncomfortable than usual. The cabin felt not well maintained. But I safely got where I needed to go.

We had a 90 minute delay due to equipment failure that was detected just before we took off. United rebooked my connecting flight.

No access to the Wi-Fi, noisy group of people made it difficult for me to hear through my earbuds. Snacks and drinks - limited service when your seat is at the back of the plane - people up front are always served first and the back gets whatever is left. Not pleased.

Didn't make it dir to delays - no support from United staff

Dinner was okay but the breakfast was not eatable on the flight San Francisco to Zurich.

My seat was broken. WiFi didn’t work. Gate crew at HOU were rude and condescending. Treated all the passengers badly. Bad experience, United.

This was a Lufthansa flight. Disappointing main meal. Very rough over Canada and arrival at FRA. IFE was almost unusable.

The gate experience at LAX was abysmal (same for the arrival experience two days prior). Despite the LAX -> SAT schedule of two flights daily, our departure gate was at a smaller hub that we had to be bussed to from Terminal 4. Fortunately, I arrived at LAX extra early and had time to spare, but if I had not known, I might have missed my flight. I looked at the LAX airport map in the AA app and there was no indication of the additional boarding process. Lastly the gate area we were bussed to was crowded with limited food and beverage options. On flight, the fight attendant was hospitable and attentive, the flight was smooth, and AA's free (and working) wifi for AA members were all on the positive side.

Awful, tons of delays, I got into Chicago multiple hours late meaning I hit the very traffic I tried so desperately to avoid. Just empty apologies from American Airlines text alerts. Trash behavior from a trash airline.

Got home at 3am after deboarding the plane. No compensation offered by American

The boarding was as always, the crew tried their best but not enough. The food was a disaster I had dietary restrictions that were half met because the company did not loaded the food for the flight. The entertainment screen was fine but content was not and also they removed the free messaging option from the flight and they charged 30 dollars for that crappy bandwidth. This flight is not worth the cost and the company is going down on quality.

As smooth as you can expect. Some issues with boarding because the previous plane took forever to deplane but overall, a good experience.

DFW-LHR Toilets not kept clean Too cramped. Aisles so narrow crew were constantly banging into people on the aisle seats. Even then, the carts used are reduced width. Other than that it was a decent flight on both legs

Awkward carry on process. Forced to check all carry on. No overhead space of worthiness. Left delayed, but made up the time. Crew was amicable.

Excellent customer service at check in at Austin flight to DFW and excellent customer service from Karren in terminal B at DFW.

Flight boarded without pilots. Sat on plane for 3 hrs. after over an hour late boarding. Plane never took off. Had to deplane near midnight. Line for rebooking was 3 hours + long. I had to leave.

We were told there would be no food/beverage service due to turbulence. There was very little turbulence on the 2+ hour flight. I was in First Class and thought they could have done a quick service after take off as they had a quite bit of time before we would be reaching the predicted turbulent area. They could have at least passed out a quick bag of pretzels.

Our flight was cancelled. They could do nothing to help us get another flight that was timely. Because the first leg was cancelled we were unable to get to our connection. We had to book on an entirely different airline for today. So we spent more money, lost a day of vacation and will never fly Frontier again, so the 'we are sorry, here is $100 credit' is a joke since we won't be flying on Frontier.

The seats were hard molded plastic covered in plastic vinyl. And the scam to charge people extra to sit together. Don’t they know we can just ask someone to trade seats. And watching the staff separate young children from parents… super classy. We had to guilt them into offering up our seats. This companies policies suck. Don’t give them your money.

Canceled original flight and wasn't clear on rebooked flight. Had to pay for bags which was more than the flight itself. Normal help, drinks etc. you have to pay for. This is Not a low cost airline.

The seats were dirty with crumbs and trash , looked it had not been cleaned up from a previous flight

First time experience and though you'll pay for *everything* meaning bags, water/snacks, even a question with a service agent - - all in all, not a bad experience whatsoever.

Flight was cancelled and was not able to get another flight thru Frontier. Per frontier a refund was issued but I do not see a refund on my Afirm account.

We did not get to go on this flight because it got canceled 4 hours prior to scheduled time. We received an email that it got canceled and then 10 minutes later we received another email that it got delayed. It was very confusing and the only options they gave us for return flight home were 12 to 22 hours of travel time. That was not an option for us since we were traveling with kids and school started on Monday. We ended up opting for a refund and booking a flight back with Alaska. The flight ended up costing us $1500 and we had to book a hotel for the night. We will never book with frontier again.

Frontier charges 25 for the service of checking in and another 79 for a carry on. Will not take this janky air carrier again.

Frontier won’t help you at the airport without paying $25. Carry on was $75. Then you get on the plain and every beverage or snack is also a charge. Seats are hard and real packed in. I would never fly them again.

I like the easy check-in and boarding process. I love the non stop flight

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

Information on your arrival and departure airports