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Find cheap flights from Portland to San Antonio from $55

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 5/21. 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
0 bags
Tue 6/4
Tue 6/11

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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.
In the last 7 days travelers have searched 43,369,418 times on KAYAK, and here is why:

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Cheap flight deals 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 and deals for you by selecting your travel dates.
Choose your dates
5:20 am - 9:15 pmPDX-SAT
13h 55m1 stop
8:41 pm - 9:43 pmSAT-PDX
27h 02m1 stop
$113Spirit Airlines
Find Deal
Wed, May 29 - Tue, Jun 4
3:27 pm - 11:43 pmPDX-SAT
6h 16m1 stop
6:45 am - 10:53 amSAT-PDX
6h 08m1 stop
$119Spirit Airlines
Find Deal
Wed, May 29 - Wed, Jun 5
3:57 pm - 9:15 pmPDX-SAT
27h 18m1 stop
6:45 am - 10:53 amSAT-PDX
6h 08m1 stop
$120Spirit Airlines
Find Deal
Tue, May 28 - Wed, Jun 5
5:20 am - 9:15 pmPDX-SAT
13h 55m1 stop
6:45 am - 11:05 amSAT-PDX
6h 20m1 stop
$126Spirit Airlines
Find Deal
Wed, May 22 - Wed, May 29
12:48 am - 8:23 amPDX-SAT
5h 35m1 stop
6:45 am - 10:53 amSAT-PDX
6h 08m1 stop
Fri, May 31 - Wed, Jun 5
12:48 am - 8:23 amPDX-SAT
5h 35m1 stop
6:45 am - 11:05 amSAT-PDX
6h 20m1 stop
Tue, May 28 - Tue, Jun 4
12:48 am - 8:23 amPDX-SAT
5h 35m1 stop
8:02 pm - 6:45 amSAT-PDX
12h 43m1 stop
$180Frontier
Find Deal
Tue, May 28 - Thu, Jun 6
12:48 am - 8:23 amPDX-SAT
5h 35m1 stop
10:58 pm - 6:45 amSAT-PDX
9h 47m1 stop
$189Frontier
Find Deal
Fri, May 31 - Sun, Jun 9
12:40 am - 11:57 amPDX-SAT
9h 17m1 stop
12:10 pm - 8:38 pmSAT-PDX
10h 28m2 stops
$340Delta
Find Deal
Tue, May 28 - Tue, Jun 4
12:59 am - 9:23 amPDX-SAT
6h 24m1 stop
7:00 am - 12:48 pmSAT-PDX
7h 48m1 stop
$348American Airlines
Find Deal
Wed, Jul 3 - Tue, Jul 9

Flights from Portland to San Antonio - Travel Insights & Trends

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’s the cheapest day of the week to fly from Portland to San Antonio?

The average price of all flights from Portland to San Antonio clicked on KAYAK for each day over the last 12 months.
For Portland to San Antonio, Tuesday is the cheapest day to fly on average and Sunday is the most expensive. Flying from San Antonio back to Portland, the best deals are generally found on Wednesday, with Monday being the most expensive.

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 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 January, where tickets cost $256 on average. On the other hand, the most expensive months are April and June, where the average cost of tickets is $467 and $441 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for 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 month.
To get a below average price on the flight from Portland to San Antonio, you should book around 4 days before departure. For the absolute cheapest price, our data suggests you should book 40 days before departure.

Which airlines provide the cheapest flights from Portland to San Antonio?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the cheapest one-way ticket from Portland to San Antonio found on KAYAK was with Spirit Airlines for $55. Spirit Airlines proposed a round-trip connection from $113 and Frontier from $180.

Good to know

Low season

August

High season

April

Cheapest flight

$55
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly with an average 29% 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 $55 for a one-way ticket and $113 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?

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

  • What is the most popular layover when flying to San Antonio from Portland?

    Las Vegas is the most popular layover city among KAYAK users traveling from Portland to San Antonio.

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

    The two airlines most popular with KAYAK users for flights from Portland to San Antonio are Delta and Alaska Airlines. With an average price for the route of $362 and an overall rating of 8.0, Delta is the most popular choice. Alaska Airlines is also a great choice for the route, with an average price of $478 and an overall rating of 8.0.

  • 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.

See more FAQs

Top tips for finding a cheap flight from PDX 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.
See more tips

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
Alaska AirlinesOverall score based on 9137 reviews
8.2Boarding
8.6Crew
7.9Comfort
7.3Entertainment
7.3Food
Airline reviews

My boarding pass birthdate was printed incorrectly causing me to spend an extra hour in a check-in and then again TSA line and to miss a chance to have dinner pre-flight. My window seat was given away and was replaced with a middle seat. I would have liked an opportunity to charge my phone and take advantage of movies but many of the departure gate chargers weren’t operational and I don’t know of an in-flight charging option, The flight left 45 late after trouble with unruly passengers, and I was glad staff removed them.

6.0 GoodAnonymous, Apr 2024PDX - SAN
Read more about Alaska Airlines reviews

My boarding pass birthdate was printed incorrectly causing me to spend an extra hour in a check-in and then again TSA line and to miss a chance to have dinner pre-flight. My window seat was given away and was replaced with a middle seat. I would have liked an opportunity to charge my phone and take advantage of movies but many of the departure gate chargers weren’t operational and I don’t know of an in-flight charging option, The flight left 45 late after trouble with unruly passengers, and I was glad staff removed them.

Horrible. I likely will have to spend several thousand dollars to rebook my international flights, due to their delays, plus a hotel in SF. I can’t wait to never fly them again!

Quick easy boarding. Airport was unprepared for early landing and we were waiting in the plane for 20 minutes before getting a gate.

It was so easy to board using my boarding pass on my iPhone, and I liked what I was given on the plane for food and drink, and everyone was very friendly.

dont re-route to San Jose. Re-route to closer airport. Provide shuttle bus to go to SFO, not just LYFT vouchers.

Staff seemed genuinely nice, not just going through the motions.

I would have rated the entire experience much better were it not for two things: 1. There was inconsistency between what we were told once on the plane vs. the answer I received to the question about "spreading out" from our assigned seats because the flight was sparsely populated, and the entire row we were in was empty but for us. I asked about one of us moving over one seat to make more room for us; before getting on the plane, I was told we could, which seemed like a sensible answer. Once on the plane, it was announced that we needed to stay in our assigned seats despite all of the empty space in our row, which seemed unneccessarily restrictive. 2. To add to the discomfort, we sat on the tarmac once the plane landed in Burbank for over half an hour waiting for a gate to become available. During that time we had to remain seated and buckled in, which was becoming more difficult as time dragged on, especially for my wife. If all of this was due to regulations, that may mitigate the sense of "needless" restriction somewhat, but it points to a need to make regulations less restrictive where it is not appropriate for the current conditions. The crew was not "nasty" about the restrictions, so I do not resent their actions, but it certainly would have been a much more pleasant flight if we had a few more options when it comes to comfort.

The seat side plug ins didn’t work in my row, and I ran out of things to do since my iPad and iPhone ran out of juice. The flight attendant offered me a free drink but I don’t drink. I suggested a free snack box instead and she just shrugged and walked off. Why do us non-drinkers get the short end of the stick?

Flight left two hours late with no real explanation and they inexplicably had the heat running on the flight as well

I like Alaska Air fine. Great crew. Late departure still arrived on time.

It was a good experience except when boarding a female flight attendant did not go out of her way to assist my teenage daughters in finding space for their carry-ons after their compartments were full.

On time departure, smooth trip, flight attendant told through passengers the gate we would arrive at and the gate our outbound flight was departing from. Early arrival

Checking in at the airport the agent only booked the first keg of my trip and had my checked luggage going to the airport with a layover! Never was issued a boarding pass for the second leg or received sticker fir my checked bag. All was well in the end! Delta agents helped to resolve the situation!!!

Delayed due to an ill passenger after loading. Not preventable on Delta's part. Was in first class. The seats are becoming worn and detaching from their velcro attachments. Only got snacks on flight. The attendant was not the friendliest.

I would fly again the whole experience was great. The only feed back I can give that they don't do that American Airlines does is the crew there is more humorous with boarding and thank their passengers. It makes it more fun to fly with them. I would however fly Delta again.

From Atlanta to Cabo I would have hoped on a plane that size I would have been able to breathe and wiggle my feet a little! The leg room in that plane is non existent and I am only 5”4’. And the air vent either wasn’t working very well or just could not blow air from the ceiling to the seat area as I was suffocating through the entire flight! And please don’t say I would have been more comfortable in first class because I cannot afford those rates and have always travelled Main Cabin without issues !

The pilots were good. Disappointing when planes don't have electrical ports

I liked the piloting of the aircraft. Very disappointed about lack of electrical ports. Also, although a short flight. there was enough time to hand out snacks to comfort + seats as was done for first class.

I had a wonderful experience flying with delta. The gentleman taking care of us on our flight was so nice, accommodating, and attentive. He always was smiling and giving pins to the kids which made me smile. The flight was quick too and without turbulence. Thank you for the great flying experience.

Delta is one of the best airlines I have flown

Crew were fine, drinks and snacks were as well but we were delayed for around 2 hrs which made our entry into Mexico delayed as well with the influx of arrivals at the same time. Sort of wasted our first day of vacation. We left Pittsburgh at 630am and did not arrive in Mexico until late dinner time.

Boarding was unorganized. They expected passengers to ask people to move their assigned seat they paid for in order to sit together. The seats even in comfort are smaller than other airlines and the flight attendants appeared not to be well prepared

Due to one crew member not showing up to work, our flight was significantly delayed causing us to miss our connecting flight in Houston to Mississippi causing us to be delayed by more than 6 hours and missing our event all together. Very disappointing. All because ONE crew member called in sick. United did grant us a $15 meal voucher, which was a small but appreciated concession that I wasn’t able to use because I ordered my lunch and paid for it before applying the concession, and the staff said it was too late to use it. Ugh! We also had a TWO delay coming back from Mississippi, but that was on American Airlines and it was due to weather, so not their fault. Anyway, not at all impressed with United’s handling of our flight and the HUGE disappointment of missing our important family event for our 90 year old mother. All that money and all that stress and emotions for nothing. Having to wait the hour to bring an employee from LAX seemed like something that should not have happened. Why don’t you have a local back-up? Santa Ana is not a little airport in a rural area.

Trip was smooth bumpy from the wind but no issues at all the crew attendant was very pleasant and had great customer service

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

The customer service was excellent! Check-in, baggage check-in, boarding, the flight went very smooth.

Awful. I got stuck next to a person carrying a dog and behind someone with a dog. People need to board these dogs downstairs. The cabin is crowded enough with your pets

It was delayed several hours which delayed our connection in Denver. Not happy.

Ok, but comfort was lacking as the seats were way to small

All good except paid for wifi that did not work

Horrible - they lied to me about baggage & boarding, even though I specifically spoke to their agents the day before my flight about my issue. When I showed up they did not let me board and stranded me at my airport until I bought a new flight with money I did not have to spend.

They gave my seat away although it was a connecting flight with them and the flight was a bit delayed.

this is starting to seem like an american airlines standard. delayed flights and fake apologies… getting tired of it

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.

Missed the flight because of them and up geting a rental car

Delayd flight out of atl as always miss my conection in dfw no flight untill next day

No problems with flight. Even though I had a short layover in DFW, I was still able to easily make my connection.

Good flights. Departure and arrivals were on time. DFW was a little problematic in that the Skytrain without prior notice bypassed the Echo terminal so that delayed my arrival at my connecting flight.

Late boarding to clean plane from previous flight; initial boarding announcement not loud enough; fantastic cabin attendant front of plane

Delayed flight, few announcements with information, no comps, cluster f boarding because zones weren’t spread out and announced loud and repeatedly, staff did their job -nothing more nothing less, annoying kids were speaking and kicking the heck out of the back of my seat and parents weren’t willing to parent… so another typical day of air travel in the US.,

Seats suck, not enough room, overcrowded planes, hectic situation all together.

On time and fast. Overall it was a pleasant experience.

3 hour delay was brutal though not Spirit Airlines fault. the control tower would not let us take off because of weather

Beware of all the extras. Nickel and dimed. Everything was extra. It turns a $90 fare in to a $400 fair quite easily.

It would have been nice to have been on the flight

Delayed several times. Flight was to arrive at midnight and it arrive at 3 am. A 3 hour delay is already bad but one that has you arriving in the wee hour is just disruptive and overall unacceptable. The complete lack of restitution is a joke in keeping with Spirit’s reputation of ranking bottom-low in the pecking order.

It wasn’t as horrible as I would have expected, however, to not provide water and change so much for bags is a ripoff to say the least.

Cancelled my flight , currently stuck in Houston and will likely miss my cruise

The flight attendants were very personable, extremely friendly, and had a very good feeling of the energy around them not to mention they’re very funny and engaging. What made up for the discomfort of the seats and the fact that the plane sat for a long time on the Turmac. Not sure if the pilot was new, but the landing was very rough sort of like I was at a magic mountain theme park ride that was built in 1959

Unfortunately not great, my flight was canceled with no notice given. I attempted to reach out to spirit airlines and have yet to receive any correspondence. I then had to book a new flight at two times the cost of the original.

Book cheap flights from Portland to San Antonio

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Portland to San Antonio found on KAYAK in the last 72 hours.
5/21Tue
1 stopSpirit Airlines
9h 43mPDX-SAT
$55
9/12Thu
1 stopFrontier
23h 14mPDX-SAT
$95
5/21Tue
2 stopsSpirit Airlines
23h 35mPDX-SAT
$99
6/30Sun
1 stopAmerican Airlines
6h 24mPDX-SAT
$174
7/27Sat
1 stopAmerican Airlines
6h 19mPDX-SAT
$194
7/3Wed
2 stopsDelta
10h 07mPDX-SAT
$201
8/2Fri
2 stopsDelta
8h 28mPDX-SAT
$247
6/24Mon
2 stopsUnited Airlines
16h 53mPDX-SAT
$353
8/3Sat
2 stopsAlaska Airlines
16h 05mPDX-SAT
$382
6/30Sun
2 stopsUnited Airlines
16h 46mPDX-SAT
$417

Search by stops

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Last minute flights from Portland to San Antonio

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Portland to San Antonio that are departing in the next 10 days.
5/7Tue
multi-stopSpirit Airlines
23h 35mPDX-SAT
5/14Tue
multi-stopSpirit Airlines
16h 24mSAT-PDX
$330
5/5Sun
multi-stopFrontier
7h 48mPDX-SAT
5/11Sat
multi-stopFrontier
16h 39mSAT-PDX
$347
5/6Mon
multi-stop
22h 45mPDX-SAT
5/11Sat
multi-stop
16h 39mSAT-PDX
$430
5/8Wed
multi-stop
7h 15mPDX-SAT
5/11Sat
multi-stop
16h 39mSAT-PDX
$495
5/6Mon
multi-stopDelta
9h 17mPDX-SAT
5/14Tue
multi-stopDelta
12h 33mSAT-PDX
$656
5/6Mon
multi-stopDelta
9h 17mPDX-SAT
5/11Sat
multi-stopDelta
9h 15mSAT-PDX
$706
5/5Sun
multi-stopUnited Airlines
9h 09mPDX-SAT
5/11Sat
multi-stopUnited Airlines
14h 30mSAT-PDX
$751
5/7Tue
multi-stopUnited Airlines
10h 55mPDX-SAT
5/8Wed
multi-stopUnited Airlines
6h 20mSAT-PDX
$781
5/5Sun
multi-stopAmerican Airlines
5h 58mPDX-SAT
5/5Sun
multi-stopAmerican Airlines
8h 03mSAT-PDX
$941
5/5Sun
multi-stopAmerican Airlines
8h 23mPDX-SAT
5/5Sun
multi-stopAmerican Airlines
28h 19mSAT-PDX
$1,214

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Portland - San Antonio Flights

Departure:

Portland (PDX)United States

Destination:

San Antonio (SAT)United States

Return flight deals:

San Antonio - Portland

Cabin classes: