PDX - SAT

$179 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 10/3. 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
$296
Typical prices: $421-$259
Delta
Wed 8/19Sat 8/22
PDX - SAT • 1 stop
Cheapest one-way
$179
Typical prices: $149-$252
American Airlines
Sat 10/3
PDX - SAT • 1 stop
Top airlines
Cheapest • from $296 (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 $410 (round-trip)
Shortest trip • 5h 30m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 7 weeks in advance save around 41% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 24% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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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

Wed, Aug 19 - Sat, Aug 22
Delta Logo
6:00 am - 5:11 pm
PDX
-
SAT
9h 11m
1 stop
Delta Logo
6:30 am - 1:38 pm
SAT
-
PDX
9h 08m
1 stop
$296Delta
Tue, Sep 29 - Wed, Oct 7
United Airlines Logo
11:55 pm - 8:41 am
PDX
-
SAT
6h 46m
1 stop
United Airlines Logo
2:15 pm - 7:18 pm
SAT
-
PDX
7h 03m
1 stop
$312United Airlines
Fri, Aug 14 - Tue, Aug 18
Alaska Airlines Logo
6:19 am - 3:46 pm
PDX
-
SAT
7h 27m
1 stop
Alaska Airlines Logo
4:44 pm - 11:59 pm
SAT
-
PDX
9h 15m
1 stop
$323Alaska Airlines
Fri, Jul 24 - Tue, Jul 28
Frontier Logo
12:20 pm - 6:44 pm
PDX
-
SAT
28h 24m
1 stop
Frontier Logo
7:39 pm - 4:36 pm
SAT
-
PDX
22h 57m
1 stop
$333Frontier
Wed, Sep 30 - Mon, Oct 5
Multiple Airlines Logo
6:20 am - 4:19 pm
PDX
-
SAT
7h 59m
1 stop
Multiple Airlines Logo
11:08 am - 4:35 pm
SAT
-
PDX
7h 27m
1 stop
$338Multiple Airlines
Wed, Jul 8 - Mon, Jul 13
Frontier Logo
5:21 pm - 6:44 pm
PDX
-
SAT
23h 23m
1 stop
Frontier Logo
7:39 pm - 4:31 pm
SAT
-
PDX
22h 52m
1 stop
$339Frontier
Fri, Jun 19 - Tue, Jun 23
Frontier Logo
8:42 pm - 8:11 pm
PDX
-
SAT
21h 29m
1 stop
Frontier Logo
7:51 pm - 4:35 pm
SAT
-
PDX
22h 44m
1 stop
$340Frontier
Mon, Aug 10 - Wed, Aug 19
Delta Logo
5:08 pm - 12:26 am
PDX
-
SAT
5h 18m
1 stop
Delta Logo
2:22 pm - 8:17 pm
SAT
-
PDX
7h 55m
1 stop
$342Delta
Wed, Sep 30 - Sat, Oct 3
Southwest Logo
2:00 pm - 9:30 pm
PDX
-
SAT
5h 30m
1 stop
Southwest Logo
3:25 pm - 10:00 pm
SAT
-
PDX
8h 35m
2 stops
$346Southwest
Wed, Aug 19 - Sat, Aug 22
Delta Logo
5:45 am - 1:31 pm
PDX
-
SAT
5h 46m
1 stop
Delta Logo
7:30 am - 2:45 pm
SAT
-
PDX
9h 15m
2 stops
$347Delta
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 August, where tickets cost $308 (return) on average. On the other hand, the most expensive months are June and December, where the average cost of round-trip tickets is $487 and $471 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 7 weeks before departure, which saves you about 41% 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$179
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly with an average 1% increase in price.
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 $179 for a one-way ticket and $296 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 $437 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 $415 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 4256 reviews
7.5Entertainment
8.1Boarding
8.6Crew
8.0Comfort
7.0Food
Airline reviews

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

10.0 ExcellentAnonymous, May 2026
PDX - OAK
Read more Southwest reviews

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!

Southwest is kind of a slum airline. It’s gotten more expensive over the years for less and less service. I am a Southwest Chase Visa card holder and was forced to choose a seat in the 26th row in the middle seat. However my wife who is a rewards member but doesn’t hold a card or anything else, gets randomly assigned a normally paid seat in row 6! How does that work?

The seat was not comfortable. 1D. My back was sore all night and the next day.

One of the best airlines for fast boarding, on time arrivals, and top notch service!

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.

No service flight that took 5 hrs and a stop at an unscheduled airport. Crew and pilots did their jobs

Clean planes and not take my comfort class seat away.

Weather caused a long delay, but the efficiency and updates from the pilot were helpful. We were able to make our connection fortunately.

Planes were clean, no water or snacks on either flight.

Free & relatively fast Wi-Fi. Would've liked a wider drink selection.

I continue to be satisfied with Delta’s excellent service out of LGA. The digit id works well and gets me through security in no time. Whenever possible, I choose Delta.

Was revoked with Jet Blue due to delay from Kenya Air

Enjoyed it very much. Especially liked the free WiFi that Delta offers.

Smooth flight. Left on time, and got in 15 minutes early. Onboard video was great

For some reason, TSA Atlanta didn’t have my bag on the flight on time and they don’t have to provide Delta a reason for that.

The flight had a delay but I made it to my connection. Flight was smooth overall

No screens or meal options. Freezing cold. Dirty seats. Left late.

Overall flight was ok. Flight attendant was receptive to assisting passengers with tight connections.

This was the first flight in the morning. We boarded fine. The cabin door was closed and we were ready to go. We were notified by the Captain that ATC issued and ground stop for 40 minutes. So, without even pushing back from the gate, we were already 40 minutes late. We actually were released to push-back and taxi at 30 minutes. But, some passengers had tight connections and were not going to make their connections. Some passengers asked about the delay and the effect on the connections and were told by the cabin attendant that all flights will be delayed and so they should be OK. However, that was not true. My connecting flight was on time and I arrived at IAH with 21 minutes to make my connection. I did and I'm happy about that, but the flight crew should not have given assurances to the passengers who might have missed their connections.

Boarding was again a "free for all". We were boarding group 4, and almost the entire plane was able to board before us. It's a shame that someone who follows the rules, gets the short end of the stick. Not fair.

Fine. The issues I had were associated with luggage being delayed from Turkey to Tanzania

We purchase first class seats for the first time for multiples of standard economy ticket. There was no access to the club lounge and no priority boarding. The meal and the service once on the plane were superior and the seat was nicer, but not worth the price difference. I will be happy to seat in economy and spend the difference on more travel.

It isvvery small flight. No leg room . No space to put my personal item at feet.

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!

They made nearly everyone check their bag because the overhead bins are way too small. Extremely inconvenient

It was what i expected. I like the movies you can access from your phone. It would be nice if there was a gluten free snack offered. But I did bring my own snack knowing there would not be a gluten free option

Ontario airport boarding was very easy to park and access, is clean and TSA took 10 minutes total. Check-in was a breeze and cruise was very nice.

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.

We got delayed getting out of DFW for broken overhead bins. Once the flight got underway the captain kept the seatbelt sign lit the entire flight despite little perceptible turbulence, preventing use of the rest rooms and any sort of refreshment service in the main cabin.

There were flight delays making our flight arrive at our destination after midnight didn’t seem to have enough crew or airplanes for the flights laid over in Dallas should’ve had plenty of time to make it to our next flight only made it because that flight was also delayed because our plane wasn’t even at the airport yet overall have not had a good experience on American

Seat comfort was poor (no lumbar or lower back support).

The passenger in front of of me reclined their seat back all the way the entire flight. Their headrest was in my face the entire flight! I barely had room for the little plastic cup of water to fit on my tray table; can you make the seats and space between the rows any smaller??? You can’t even get up to use the restroom! Worst flight I’ve had in a very long time!

My Frequent Flyer nber wasn't put on as I was told it was..... This resulted in a last group boarding and no priority tags on My bags.

Cancelled the flight half hour before boarding. Then cancelled the connecting flight too.

There weren't enough employees at check in took awhile to get bags checked. There wasn't a wheel chair for me, I was sent to someone who turns out to work for a different airline, if My flight hadn't been delayed I probably would have missed my flight as it was, by the time I arrived at my gate, they started boarding in about 15 minutes. I don't know who took me to my gate, definitely was not the normal people who take passengers to the gate. I'm guessing she may have been in a management position. I wish I knew her name, she went beyond to help me. With that said everyone was kind, and were doing the best they could. So, I choose to say it was an Adventure, stressful start, but good. In the end went well. The situation was not only difficult for passengers but the employee's.

The staff at the check in counter was so rude. Made you feel Incompetent

Frontier scheduled a 40 minute connection in DEN. What they failed to mention was that they “close the doors” 20 mins prior to departure, which means you only have 20 mins. Not enough time. Possibly against DOT regulations. Filing complaint.

Flight was scheduled at 9:40pm. Got delayed to 10 am, the next day. crazy

The bag check, flight check-in, and onboard experience convinced my wife and me that we will actively go out of our way to avoid flying Frontier Airlines in the future. At bag check, we were informed that check-in could only be completed via the Frontier mobile app. Unfortunately, the app was extremely frustrating—sending us through repetitive, confusing loops that repeatedly forced us to decline add-on services with nearly every click. While most airline apps upsell, this one felt intentionally exhausting. As the process dragged on, we became genuinely concerned that my phone battery would die before check-in could be completed. We approached the bag check staff—who were standing together talking—and explained both our frustration and our predicament. They laughed. Later, my wife described the interaction as “gaslighting,” which felt accurate. We were then informed it would cost $25 per person simply to have our boarding passes printed. From that point forward, the tone of the experience was consistently hostile. The bag check employees were condescending and combative, behaving more like bullies than customer service staff. Unfortunately, that same attitude continued onboard. One flight attendant argued with me when I attempted to stow my backpack in the overhead bin. I explained that we had each paid $75 to check our bags specifically so we would not need to use carry-on space and could have adequate legroom. She demanded to see my ticket, pointed out that it said “no carry-on”—which I acknowledged—and I reiterated that this was precisely why we paid to check our bags. Her response was, “I don’t make the rules.” She then walked away, but not before asking if I “truly wanted to fly back to Chicago today?”—an unnecessary and unmistakable threat. It is also worth noting that despite booking our tickets together in the same transaction, we were not seated together. Upon our return to Chicago—where we could once again sit together—we compared onboard experiences. We both remarked on how unhappy the flight attendants appeared and how each of us was separately asked whether we would like to purchase a beverage. We declined. At no point was water mentioned as an option, leaving us with the clear impression that even water came at a cost—or that complimentary water, if available at all, was deliberately left unmentioned. Overall, the experience was shocking and deeply disappointing, but it was also a profound learning experience—one we will not forget and will not repeat. -Steve

Plane was hot and miserable and the crew was rude!

12 hour delay required getting on and off plane 3 times - would have at least liked to have been offered a snack or drink

They didn’t offer a water, even after I asked

They switched our terminal 3 times and we were delayed for four plus hours!!!

It was an early flight and most people napped/slept and the crew let us which was nice.

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

Information on your arrival and departure airports