Which layover airport has the shortest connection time from Portland to San Antonio?

Denver (DEN) has the shortest average layover time for this route: 1h 03m.

Which layover airport has the shortest travel time from Portland to San Antonio?

Flights connecting via Salt Lake City (SLC) have the shortest average one-way travel time: 5h 17m.

Which layover airport offers the lowest fares from Portland to San Antonio?

Flights via Phoenix (PHX) offer the lowest average round-trip price of $296.

What airlines fly to San Antonio?

Alaska Airlines, American Airlines 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 38% of people opting to fly with this airline when traveling to San Antonio. Keep in mind that there are 8 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?

Denver (DEN) was the most common stop: 44% of momondo users choosing 1-stop flights on this route connected there.

What is the cheapest airline that flies from Portland to San Antonio?

Frontier, Spirit Airlines, and Hawaiian Airlines are the most popular carriers operating from Portland to San Antonio

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 August 2025, there are 7 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.

$84 Cheap Flights from Portland to San Antonio in 2025

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Portland to San Antonio

Round-trip

One-way

Last minute

Cheap round-trip flights

6:05 am - 7:15 pmPDX-SAT

11h 10m1 stop

8:20 pm - 12:12 amSAT-PDX

5h 52m1 stop

$156Frontier

Find Deal

Thu, Sep 11 - Mon, Sep 15

12:43 pm - 11:14 amPDX-SAT

20h 31m1 stop

3:12 pm - 12:56 pmSAT-PDX

23h 44m1 stop

$163Frontier

Find Deal

Sat, Oct 25 - Sat, Nov 1

6:05 am - 7:00 pmPDX-SAT

10h 55m1 stop

8:20 pm - 12:12 amSAT-PDX

5h 52m1 stop

$165Frontier

Find Deal

Fri, Sep 19 - Sun, Sep 21

6:05 am - 7:15 pmPDX-SAT

11h 10m1 stop

8:20 pm - 12:12 amSAT-PDX

5h 52m1 stop

$170Frontier

Find Deal

Mon, Sep 15 - Mon, Sep 22

12:43 pm - 3:14 pmPDX-SAT

24h 31m1 stop

3:59 pm - 11:48 amSAT-PDX

21h 49m1 stop

$175Frontier

Find Deal

Tue, Oct 7 - Tue, Oct 14

12:43 pm - 7:35 pmPDX-SAT

28h 52m1 stop

3:59 pm - 11:48 amSAT-PDX

21h 49m1 stop

$177Frontier

Find Deal

Thu, Oct 9 - Tue, Oct 14

12:37 pm - 4:47 amPDX-SAT

14h 10m1 stop

2:04 pm - 6:40 pmSAT-PDX

6h 36m1 stop

$188

Find Deal

Mon, Oct 20 - Fri, Oct 24

8:36 pm - 4:47 amPDX-SAT

6h 11m1 stop

9:25 pm - 7:36 pmSAT-PDX

24h 11m1 stop

$207Spirit Airlines

Find Deal

Wed, Oct 15 - Mon, Oct 20

12:07 pm - 8:52 pmPDX-SAT

6h 45m1 stop

9:47 pm - 11:11 amSAT-PDX

15h 24m1 stop

$218Spirit Airlines

Find Deal

Wed, Sep 24 - Wed, Oct 1

8:36 pm - 4:47 amPDX-SAT

6h 11m1 stop

6:00 am - 7:36 pmSAT-PDX

15h 36m1 stop

$224Spirit Airlines

Find Deal

Wed, Oct 8 - Tue, Oct 14

Frontier flights from Portland to San Antonio

Our best Frontier deals on Portland to San Antonio flight tickets

Frontier

Sep 11

PDX6:05 amPortland

11h 10m

1 stop

SAT7:15 pmSan Antonio

Sep 15

SAT8:20 pmSan Antonio

5h 52m

1 stop

PDX12:12 amPortland

$156

Find similar

Frontier

Oct 25

PDX12:43 pmPortland

20h 31m

1 stop

SAT11:14 amSan Antonio

Nov 1

SAT3:12 pmSan Antonio

23h 44m

1 stop

PDX12:56 pmPortland

$163

Find similar

Frontier

Sep 19

PDX6:05 amPortland

10h 55m

1 stop

SAT7:00 pmSan Antonio

Sep 21

SAT8:20 pmSan Antonio

5h 52m

1 stop

PDX12:12 amPortland

$165

Find similar

Delta flights from Portland to San Antonio

Our best Delta deals on Portland to San Antonio flight tickets

Delta

Sep 10

PDX12:45 amPortland

9h 05m

1 stop

SAT11:50 amSan Antonio

Sep 15

SAT6:05 pmSan Antonio

7h 47m

1 stop

PDX11:52 pmPortland

$572

Find similar

Delta

Sep 10

PDX12:45 amPortland

9h 05m

1 stop

SAT11:50 amSan Antonio

Sep 15

SAT6:24 amSan Antonio

8h 11m

1 stop

PDX12:35 pmPortland

$662

Find similar

Delta

Sep 10

PDX12:45 amPortland

9h 05m

1 stop

SAT11:50 amSan Antonio

Sep 15

SAT4:00 pmSan Antonio

9h 52m

2 stops

PDX11:52 pmPortland

$774

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Thu 9/11

6:05 am-7:15 pm

1 stop11h 10m

San Antonio

Mon 9/15

8:20 pm-12:12 am

1 stop5h 52m

$156

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Sat 10/25

12:43 pm-11:14 am

1 stop20h 31m

San Antonio

Sat 11/1

3:12 pm-12:56 pm

1 stop23h 44m

$163

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Fri 9/19

6:05 am-7:00 pm

1 stop10h 55m

San Antonio

Sun 9/21

8:20 pm-12:12 am

1 stop5h 52m

$165

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Mon 9/15

6:05 am-7:15 pm

1 stop11h 10m

San Antonio

Mon 9/22

8:20 pm-12:12 am

1 stop5h 52m

$170

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Tue 10/7

12:43 pm-3:14 pm

1 stop24h 31m

San Antonio

Tue 10/14

3:59 pm-11:48 am

1 stop21h 49m

$175

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Thu 10/9

12:43 pm-7:35 pm

1 stop28h 52m

San Antonio

Tue 10/14

3:59 pm-11:48 am

1 stop21h 49m

$177

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Mon 10/20

12:37 pm-4:47 am

1 stop14h 10m

San Antonio

Fri 10/24

2:04 pm-6:40 pm

1 stop6h 36m

$188

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Wed 10/15

8:36 pm-4:47 am

1 stop6h 11m

San Antonio

Mon 10/20

9:25 pm-7:36 pm

1 stop24h 11m

$207

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Wed 9/24

12:07 pm-8:52 pm

1 stop6h 45m

San Antonio

Wed 10/1

9:47 pm-11:11 am

1 stop15h 24m

$218

PortlandSan Antonio

PDX - SAT

PDXSAT

Portland

Wed 10/8

8:36 pm-4:47 am

1 stop6h 11m

San Antonio

Tue 10/14

6:00 am-7:36 pm

1 stop15h 36m

$224

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Layovers

What is the cheapest month to fly to San Antonio?

If you aren’t able to travel during the month of September, then book flights to San Antonio from Portland during August instead. Flights to San Antonio in August, while not as cheap as those in September, still average around $315.

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 weeks ahead of your departure date. In general, you can expect to find flights to San Antonio for around $383 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 $317 on momondo.

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

As of August 2025, prices for Portland to San Antonio flights are approximately 47% cheaper 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

Direct flights	None

There are no direct flights from Portland to San Antonio. There are no popular flight routes from Portland to San Antonio.

Search flight deals

How far is Portland to San Antonio by plane?
San Antonio is 1717.5 mi away from Portland. By plane, this route typically takes 6h 11m.
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 August 2025, there are 7 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 American Airlines (26% of total bookings). The next most popular airlines are Southwest (23%), Delta (22%), and United Airlines (13%).

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 Airlines	PriceFrom $112	Free Cancellation	Rating 6.3 8,030 reviews	Search Spirit Airlines flights
Frontier	PriceFrom $118	Free Cancellation	Rating 5.8 3,202 reviews	Search Frontier flights
American Airlines	PriceFrom $246	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Delta	PriceFrom $276	Free Cancellation	Rating 7.9 7,977 reviews	Search Delta flights
Alaska Airlines	PriceFrom $277	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights
United Airlines	PriceFrom $284	Free Cancellation	Rating 7.4 8,945 reviews	Search United Airlines flights
Southwest	PriceFrom $300	Free Cancellation	Rating 8.0 4,241 reviews	Search Southwest flights

New Braunfels

Kerrville

Boerne

Schertz

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.

An easier way to manage your San Antonio trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Mon 9/1

Mon 9/8

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States

Airports servicing Texas

Popular cities in the United States

Flights to New Yorkfrom $35

Flights to Los Angelesfrom $37

Flights to Miamifrom $39

Flights to Chicagofrom $37

Flights to Orlandofrom $37

Flights to Las Vegasfrom $37

Flights to San Franciscofrom $37

Flights to Washington, D.C.from $37

Flights to Bostonfrom $58

Flights to Atlantafrom $39

Flights to Dallasfrom $45

Flights to Seattlefrom $53

Cheap flights from Portland to San Antonio from $84

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 9/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Portland to San Antonio

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Frontier flights from Portland to San Antonio

Our best Frontier deals on Portland to San Antonio flight tickets

Delta flights from Portland to San Antonio

Our best Delta deals on Portland to San Antonio flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Portland to San Antonio that are best for you.

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 September, then book flights to San Antonio from Portland during August instead. Flights to San Antonio in August, while not as cheap as those in September, still average around $315.

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

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

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

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

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

What is the cheapest airline that flies from Portland to San Antonio?

Frontier, Spirit Airlines, and Hawaiian Airlines are the most popular carriers operating from Portland to San Antonio

What airlines fly to San Antonio?

Which airport is the most popular layover for flights between Portland and San Antonio?

Denver (DEN) was the most common stop: 44% 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 Phoenix (PHX) offer the lowest average round-trip price of $296.

Which layover airport has the shortest travel time from Portland to San Antonio?

Flights connecting via Salt Lake City (SLC) have the shortest average one-way travel time: 5h 17m.

Which layover airport has the shortest connection time from Portland to San Antonio?

Denver (DEN) has the shortest average layover time for this route: 1h 03m.

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

Direct flights

How far is Portland to San Antonio by plane?

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

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?

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

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

Traveling to a place near San Antonio?

Why use momondo?

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

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

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

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

An easier way to manage your San Antonio trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Airports servicing Texas