Cheap flights from Portland to San Antonio from $127
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 10/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Fly from
Fly to
Route
Depart
Return
PortlandSan Antonio
PDX Portland - SAT San Antonio
PDXSAT
Portland
Thu 10/22
12:11 pm-9:49 pm
1 stop7h 38m
San Antonio
Mon 10/26
8:21 pm-11:07 am
1 stop16h 46m
PortlandSan Antonio
PDX Portland - SAT San Antonio
PDXSAT
Portland
Thu 10/22
12:11 pm-12:15 pm
1 stop22h 04m
San Antonio
Wed 10/28
10:29 pm-11:36 am
1 stop15h 07m
PortlandSan Antonio
PDX Portland - SAT San Antonio
PDXSAT
Portland
Tue 1/19
7:00 am-2:40 pm
1 stop5h 40m
San Antonio
Wed 2/17
6:20 am-10:30 am
1 stop6h 10m
PortlandSan Antonio
PDX Portland - SAT San Antonio
PDXSAT
Portland
Tue 1/19
6:20 am-3:50 pm
2 stops7h 30m
San Antonio
Wed 2/17
11:55 am-5:50 pm
1 stop7h 55m
PortlandSan Antonio
PDX Portland - SAT San Antonio
PDXSAT
Portland
Thu 1/7
10:59 pm-11:01 am
1 stop10h 02m
San Antonio
Thu 1/14
5:00 pm-10:17 pm
1 stop7h 17m
PortlandSan Antonio
PDX Portland - SAT San Antonio
PDXSAT
Portland
Mon 10/26
5:15 pm-12:30 am
1 stop5h 15m
San Antonio
Thu 10/29
2:30 pm-8:02 pm
1 stop7h 32m
PortlandSan Antonio
PDX Portland - SAT San Antonio
PDXSAT
Portland
Wed 2/10
1:00 pm-11:18 pm
1 stop8h 18m
San Antonio
Tue 2/16
6:30 am-12:18 pm
1 stop7h 48m
PortlandSan Antonio
PDX Portland - SAT San Antonio
PDXSAT
Portland
Thu 12/3
5:15 am-2:05 pm
1 stop6h 50m
San Antonio
Mon 12/7
5:45 pm-11:49 pm
1 stop8h 04m
PortlandSan Antonio
PDX Portland - SAT San Antonio
PDXSAT
Portland
Sat 10/31
6:30 am-2:52 pm
1 stop6h 22m
San Antonio
Mon 11/2
5:47 pm-11:43 pm
1 stop7h 56m
PortlandSan Antonio
PDX Portland - SAT San Antonio
PDXSAT
Portland
Fri 12/4
1:22 pm-9:57 pm
1 stop6h 35m
San Antonio
Mon 12/7
5:00 pm-9:52 pm
1 stop6h 52m
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 typical price of a round-trip flight between Portland and San Antonio?
Prices are currently low for flights on this route.
Typical prices usually range from $369 to $478.The lowest price recently found on this route was $254.
What is the cheapest month to fly to San Antonio?
If you aren’t able to travel during the month of February, then book flights to San Antonio from Portland during November instead. Flights to San Antonio in November, while not as cheap as those in February, still average around $401.
How far in advance should I book a flight from Portland to San Antonio?
You are more likely to see cheaper flights to San Antonio from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to San Antonio for around $430 when searching 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 $367 on momondo.
What is the cheapest airline that flies from Portland to San Antonio?
Southwest, Frontier, and Delta are the most popular carriers operating from Portland to San Antonio
What airlines fly to San Antonio?
Alaska Airlines, Southwest and Delta are the top three most popular airlines that fly to San Antonio from Portland according to our data. Alaska Airlines is the first choice among our users, with 53% of people opting to fly with this airline when traveling to San Antonio. Keep in mind that there are 6 different airlines that fly to San Antonio on a routine basis, so you have a few additional options to choose from.
Which airport is the most popular layover for flights between Portland and San Antonio?
Dallas (DFW) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.
Which layover airport offers the lowest fares from Portland to San Antonio?
Flights via Seattle (SEA) offer the lowest average round-trip price of $338.
Which layover airport has the shortest travel time from Portland to San Antonio?
Flights connecting via Phoenix (PHX) have the shortest average one-way travel time: 6h 15m.
Which layover airport has the shortest connection time from Portland to San Antonio?
Minneapolis (MSP) has the shortest average layover time for this route: 1h 06m.
When to book flights from Portland to San Antonio
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
Frequently asked questions about flying from Portland to San Antonio
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 40m.
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?
As of October 2026, there are 6 operators available to choose from 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?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Portland to San Antonio is Southwest (33% of total bookings). The next most popular airlines are Delta (19%), United Airlines (19%), and American Airlines (17%).
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 | ||
|---|---|---|---|---|---|
| PriceFrom $158 | Free Cancellation | Rating 5.5 2,550 reviews | |||
| PriceFrom $237 | Free Cancellation | Rating 7.4 10,286 reviews | |||
| PriceFrom $248 | Free Cancellation | Rating 7.9 13,016 reviews | |||
| PriceFrom $276 | Free Cancellation | Rating 7.8 8,629 reviews | |||
| PriceFrom $305 | Free Cancellation | Rating 7.0 12,126 reviews | |||
| PriceFrom $330 | Free Cancellation | Rating 7.9 4,212 reviews |
Traveling to a place near San Antonio?
Book flights to San Antonio if you plan to visit one of these locationsWhy 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.