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Cheap flights from Portland to San Antonio from $74

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to San Antonio departing on 4/27. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Portland to San Antonio

Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Portland to San Antonio.
Spirit Airlines Logo
7:01 pm - 4:34 amPDX-SAT
7h 33m1 stop
Spirit Airlines Logo
10:51 pm - 4:45 pmSAT-PDX
19h 54m1 stop
$146Spirit Airlines
Find Deal
Sun, May 4 - Thu, May 8
Spirit Airlines Logo
7:01 pm - 5:04 amPDX-SAT
8h 03m1 stop
Spirit Airlines Logo
10:51 pm - 12:42 pmSAT-PDX
15h 51m1 stop
$153Spirit Airlines
Find Deal
Tue, May 6 - Fri, May 9
Spirit Airlines Logo
7:01 pm - 5:26 pmPDX-SAT
20h 25m1 stop
Spirit Airlines Logo
6:31 pm - 4:45 pmSAT-PDX
24h 14m1 stop
$157Spirit Airlines
Find Deal
Tue, Apr 29 - Tue, May 6
Delta Logo
1:00 pm - 11:42 pmPDX-SAT
8h 42m1 stop
Delta Logo
6:50 am - 11:58 amSAT-PDX
7h 08m1 stop
$257Delta
Find Deal
Wed, Apr 30 - Tue, May 6
Delta Logo
1:00 pm - 11:42 pmPDX-SAT
8h 42m1 stop
Delta Logo
4:00 pm - 10:41 pmSAT-PDX
8h 41m1 stop
$267Delta
Find Deal
Wed, Apr 30 - Thu, May 8
United Airlines Logo
11:25 am - 10:58 pmPDX-SAT
9h 33m2 stops
United Airlines Logo
4:45 pm - 8:49 pmSAT-PDX
6h 04m1 stop
$350United Airlines
Find Deal
Wed, Sep 24 - Sat, Sep 27
United Airlines Logo
5:00 am - 1:04 pmPDX-SAT
6h 04m1 stop
United Airlines Logo
4:53 pm - 10:53 pmSAT-PDX
8h 00m1 stop
$357United Airlines
Find Deal
Wed, Apr 30 - Fri, May 2
Southwest Logo
5:30 am - 3:10 pmPDX-SAT
7h 40m2 stops
Southwest Logo
9:40 pm - 1:20 amSAT-PDX
5h 40m1 stop
$374Southwest
Find Deal
Wed, Jun 11 - Sun, Jun 15
American Airlines Logo
12:59 am - 9:13 amPDX-SAT
6h 14m1 stop
American Airlines Logo
7:45 pm - 12:36 amSAT-PDX
6h 51m1 stop
$382American Airlines
Find Deal
Mon, Jul 14 - Fri, Jul 18
Southwest Logo
6:45 am - 8:50 pmPDX-SAT
12h 05m2 stops
Southwest Logo
1:15 pm - 7:25 pmSAT-PDX
8h 10m2 stops
$388Southwest
Find Deal
Sat, May 31 - Sat, Jun 7

Spirit Airlines flights from Portland to San Antonio

Our best Spirit Airlines deals on Portland to San Antonio flight tickets
Spirit Airlines
May 4
PDX7:01 pmPortland
7h 33m
1 stop
SAT4:34 amSan Antonio
May 8
SAT10:51 pmSan Antonio
19h 54m
1 stop
PDX4:45 pmPortland
Spirit Airlines
May 6
PDX7:01 pmPortland
8h 03m
1 stop
SAT5:04 amSan Antonio
May 9
SAT10:51 pmSan Antonio
15h 51m
1 stop
PDX12:42 pmPortland
Spirit Airlines
Apr 29
PDX7:01 pmPortland
20h 25m
1 stop
SAT5:26 pmSan Antonio
May 6
SAT6:31 pmSan Antonio
24h 14m
1 stop
PDX4:45 pmPortland

Frontier flights from Portland to San Antonio

Our best Frontier deals on Portland to San Antonio flight tickets
Frontier
Apr 17
PDX6:40 amPortland
10h 21m
1 stop
SAT7:01 pmSan Antonio
Apr 24
SAT5:52 pmSan Antonio
8h 50m
1 stop
PDX12:42 amPortland
Frontier
Apr 17
PDX6:40 amPortland
10h 21m
1 stop
SAT7:01 pmSan Antonio
Apr 20
SAT8:36 pmSan Antonio
6h 01m
1 stop
PDX12:37 amPortland
Frontier
May 1
PDX6:20 amPortland
9h 15m
1 stop
SAT5:35 pmSan Antonio
May 5
SAT3:22 pmSan Antonio
11h 16m
1 stop
PDX12:38 amPortland

See travel insights to San Antonio from

How to get the cheapest flight ticket from Portland to San Antonio

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Antonio?

If you aren’t able to travel during the month of August, then book flights to San Antonio from Portland during September instead. Flights to San Antonio in September, while not as cheap as those in August, still average around $338.

What is the cheapest day to depart on your flight to San Antonio?

The cheapest day to depart on your flight to San Antonio is on a Tuesday when prices can be found for as low as $347. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to San Antonio on Sunday is $459.

What is the cheapest time of day to depart on your flight to San Antonio?

According to our data, the cheapest time of day to fly to San Antonio is in the evening. momondo users have found flights departing from Portland to San Antonio in the evening for as low as $332. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. Flights to San Antonio are more costly in the afternoon, with an average ticket price of $394. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

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

You are more likely to see cheaper flights to San Antonio from Portland when booking 10 weeks ahead of your departure date. In general, you can expect to find flights to San Antonio for around $389 when searching 10 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Antonio from Portland for as low as $322 on momondo.

How have Portland to San Antonio flight prices changed over time?

As of April 2025, prices for Portland to San Antonio flights are approximately 47% more expensive when compared to flights at the same time last year.

When to book flights from Portland to San Antonio

Are you open to changing your travel dates? Check out the ideal times to fly from Portland to San Antonio according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Portland to San Antonio (PDX to SAT) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to San Antonio

Best Price Found

$74

Fastest flight time

5h 55m

Direct flights

None

Airports in San Antonio

1 airport
The best one-way flight to San Antonio from Portland in the past 72 hours is $74. The best round-trip flight deal from Portland to San Antonio found on momondo in the last 72 hours is $146.
The fastest flight from Portland to San Antonio takes 5h 55m
There are no direct flights from Portland to San Antonio. Popular non-direct route for this connection is Portland Airport - San Antonio Airport.
There is 1 airport near San Antonio: San Antonio (SAT)

  • How far is Portland to San Antonio by plane?

    San Antonio is 1717.5 mi away from Portland. By plane, this route typically takes 5h 55m.

  • When did momondo last update prices for flights from Portland Airport to San Antonio Airport?

    Prices for flights from Portland Airport to San Antonio Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Portland Airport to San Antonio Airport?

  • How old do you have to be to fly from Portland Airport to San Antonio Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Portland Airport to San Antonio Airport.

  • What documentation or ID do you need to fly to San Antonio Airport?

    The required travel and health documents for your San Antonio Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Antonio Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Portland to San Antonio?


Best airlines flying from Portland to San Antonio

Compare and see reviews for airlines that fly from Portland to San Antonio with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $114Free CancellationRating
6.3
7,886 reviews
Search Spirit Airlines flights
FrontierPriceFrom $118Free CancellationRating
5.9
3,277 reviews
Search Frontier flights
Alaska AirlinesPriceFrom $256Free CancellationRating
8.0
9,823 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $278Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $280Free CancellationRating
8.0
7,899 reviews
Search Delta flights
United AirlinesPriceFrom $284Free CancellationRating
7.4
8,615 reviews
Search United Airlines flights
SouthwestPriceFrom $326Free CancellationRating
8.0
4,275 reviews
Search Southwest flights
  • Southwest Flights From Portland to San Antonio

    Southwest flight deals from Portland to San Antonio start from $326 round-trip. Over the 2 Southwest flights for this route in a normal week, average airfare is usually $437 round-trip - but some users have found much cheaper deals with momondo.


Traveling to a place near San Antonio?

Book flights to San Antonio if you plan to visit one of these locations
New Braunfels
Kerrville
Schertz
Boerne
Pleasanton

Why use momondo?

Why should I use momondo to find a flight deal from Portland to San Antonio?

Finding the right flight to San Antonio from Portland is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Antonio quick and easy, saving you time and money.

Can I find flights from Portland to San Antonio with flexible booking policies on momondo?

Flights from Portland to San Antonio with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Portland to San Antonio?

momondo helps you find the best flight between Portland and San Antonio by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Portland to San Antonio right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Portland to San Antonio flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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