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Cheap flights from San Antonio to Portland from $134

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Antonio to Portland departing on 8/12. 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 San Antonio to Portland

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
7:35 am - 11:59 am
SAT
-
PDX
6h 24m
1 stop
United Airlines Logo
9:00 am - 5:56 pm
PDX
-
SAT
6h 56m
1 stop
$267United Airlines
Tue, Aug 11 - Tue, Aug 18
Alaska Airlines Logo
4:44 pm - 11:59 pm
SAT
-
PDX
9h 15m
1 stop
Alaska Airlines Logo
7:38 pm - 5:00 am
PDX
-
SAT
7h 22m
1 stop
$296Alaska Airlines
Tue, Aug 11 - Mon, Aug 17
Southwest Logo
6:30 pm - 10:15 pm
SAT
-
PDX
5h 45m
1 stop
Southwest Logo
1:30 pm - 9:25 pm
PDX
-
SAT
5h 55m
1 stop
$298Southwest
Tue, Aug 11 - Sat, Aug 15
Southwest Logo
5:55 pm - 9:55 pm
SAT
-
PDX
6h 00m
1 stop
Southwest Logo
11:20 am - 9:40 pm
PDX
-
SAT
8h 20m
2 stops
$303Southwest
Tue, Aug 11 - Sat, Aug 15
Southwest Logo
6:10 am - 11:50 am
SAT
-
PDX
7h 40m
2 stops
Southwest Logo
9:00 am - 6:40 pm
PDX
-
SAT
7h 40m
2 stops
$309Southwest
Tue, Aug 11 - Sat, Aug 15
Delta Logo
4:49 pm - 10:12 pm
SAT
-
PDX
7h 23m
1 stop
Delta Logo
5:08 pm - 12:26 am
PDX
-
SAT
5h 18m
1 stop
$323Delta
Fri, Aug 14 - Wed, Aug 19
Alaska Airlines Logo
4:55 pm - 10:01 pm
SAT
-
PDX
7h 06m
1 stop
Alaska Airlines Logo
5:07 am - 3:57 pm
PDX
-
SAT
8h 50m
1 stop
$325Alaska Airlines
Sat, Aug 29 - Tue, Sep 1
Frontier Logo
8:56 pm - 7:47 pm
SAT
-
PDX
24h 51m
1 stop
Frontier Logo
5:20 pm - 6:56 pm
PDX
-
SAT
23h 36m
1 stop
$329Frontier
Thu, Jun 25 - Wed, Jul 1
Frontier Logo
7:39 pm - 4:36 pm
SAT
-
PDX
22h 57m
1 stop
Frontier Logo
5:16 pm - 6:44 pm
PDX
-
SAT
23h 28m
1 stop
$330Frontier
Tue, Jul 7 - Tue, Jul 14
Delta Logo
6:03 pm - 11:39 pm
SAT
-
PDX
7h 36m
1 stop
Delta Logo
8:44 pm - 11:49 am
PDX
-
SAT
13h 05m
2 stops
$331Delta
Wed, Aug 12 - Wed, Aug 19

Alaska Airlines flights from San Antonio to Portland

Our best Alaska Airlines deals on San Antonio to Portland flight tickets
Alaska Airlines
Aug 11
SAT4:44 pmSan Antonio
9h 15m
1 stop
PDX11:59 pmPortland
Aug 17
PDX7:38 pmPortland
7h 22m
1 stop
SAT5:00 amSan Antonio
$296
Alaska Airlines
Aug 29
SAT4:55 pmSan Antonio
7h 06m
1 stop
PDX10:01 pmPortland
Sep 1
PDX7:09 amPortland
6h 48m
1 stop
SAT3:57 pmSan Antonio
$325
Alaska Airlines
Aug 14
SAT4:44 pmSan Antonio
8h 46m
1 stop
PDX11:30 pmPortland
Aug 20
PDX5:07 amPortland
8h 50m
1 stop
SAT3:57 pmSan Antonio
$352

Frontier flights from San Antonio to Portland

Our best Frontier deals on San Antonio to Portland flight tickets
Frontier
Jun 25
SAT8:56 pmSan Antonio
24h 51m
1 stop
PDX7:47 pmPortland
Jul 1
PDX5:20 pmPortland
23h 36m
1 stop
SAT6:56 pmSan Antonio
$329
Frontier
Jul 7
SAT7:39 pmSan Antonio
22h 57m
1 stop
PDX4:36 pmPortland
Jul 14
PDX5:16 pmPortland
23h 28m
1 stop
SAT6:44 pmSan Antonio
$330
Frontier
Jun 23
SAT7:51 pmSan Antonio
22h 44m
1 stop
PDX4:35 pmPortland
Jul 4
PDX12:26 pmPortland
28h 28m
1 stop
SAT6:54 pmSan Antonio
$335

momondo Fare Finder

 
Customize your flight search to find flights from San Antonio to Portland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated June 1, 2026.
Use the filters below to find and compare flights from San Antonio to Portland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Tue 8/11

7:35 am-11:59 am

1 stop6h 24m

Portland

Tue 8/18

9:00 am-5:56 pm

1 stop6h 56m

$267

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Tue 8/11

4:44 pm-11:59 pm

1 stop9h 15m

Portland

Mon 8/17

7:38 pm-5:00 am

1 stop7h 22m

$296
Quickest round-trip

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Tue 8/11

6:30 pm-10:15 pm

1 stop5h 45m

Portland

Sat 8/15

1:30 pm-9:25 pm

1 stop5h 55m

$298

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Tue 8/11

5:55 pm-9:55 pm

1 stop6h 00m

Portland

Sat 8/15

11:20 am-9:40 pm

2 stops8h 20m

$303

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Tue 8/11

6:10 am-11:50 am

2 stops7h 40m

Portland

Sat 8/15

9:00 am-6:40 pm

2 stops7h 40m

$309

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Fri 8/14

4:49 pm-10:12 pm

1 stop7h 23m

Portland

Wed 8/19

5:08 pm-12:26 am

1 stop5h 18m

$323

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Sat 8/29

4:55 pm-10:01 pm

1 stop7h 06m

Portland

Tue 9/1

5:07 am-3:57 pm

1 stop8h 50m

$325

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Thu 6/25

8:56 pm-7:47 pm

1 stop24h 51m

Portland

Wed 7/1

5:20 pm-6:56 pm

1 stop23h 36m

$329

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Tue 7/7

7:39 pm-4:36 pm

1 stop22h 57m

Portland

Tue 7/14

5:16 pm-6:44 pm

1 stop23h 28m

$330

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Wed 8/12

6:03 pm-11:39 pm

1 stop7h 36m

Portland

Wed 8/19

8:44 pm-11:49 am

2 stops13h 05m

$331

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Portland from

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

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 San Antonio and Portland?

What is the cheapest month to fly to Portland?

The cheapest month to fly to Portland from San Antonio is in September. Flight prices, which tend to average around $306, are often lower during this time because this is during the off-season. If you don’t want to visit Portland in September, then you should wait until October to fly from San Antonio, when ticket prices are also cheap, with an average price of $356.

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

You are more likely to see cheaper flights to Portland from San Antonio when booking weeks ahead of your departure date. In general, you can expect to find flights to Portland for around $415 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portland from San Antonio for as low as $348 on momondo.

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

As of June 2026, prices for San Antonio to Portland flights are approximately 49% more expensive when compared to flights at the same time last year.

When to book flights from San Antonio to Portland

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

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

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

Fastest flight time

6h 24m

Direct flights

None
The fastest flight from San Antonio to Portland takes 6h 24m
There are no direct flights from San Antonio to Portland. There are no popular flight routes from San Antonio to Portland.
Search flight deals

Frequently asked questions about flying from San Antonio to Portland

  • How far is San Antonio to Portland by plane?

    Portland is 1717.5 mi away from San Antonio. Typically, this will take 6h 24m by plane in normal conditions.

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

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

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

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

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

    The necessary travel and health documents for your Portland Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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

Best airlines flying from San Antonio to Portland

Compare and see reviews for airlines that fly from San Antonio to Portland with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $97Free CancellationRating
5.6
2,923 reviews
Search Frontier flights
Alaska AirlinesPriceFrom $157Free CancellationRating
7.9
12,442 reviews
Search Alaska Airlines flights
DeltaPriceFrom $237Free CancellationRating
7.9
8,402 reviews
Search Delta flights
SouthwestPriceFrom $277Free CancellationRating
8.0
4,256 reviews
Search Southwest flights
American AirlinesPriceFrom $296Free CancellationRating
7.1
11,642 reviews
Search American Airlines flights
United AirlinesPriceFrom $348Free CancellationRating
7.4
9,768 reviews
Search United Airlines flights

Traveling to a place near Portland?

Book flights to Portland if you plan to visit one of these locations
Lincoln City
Seaside
Cannon Beach
Vancouver
Salem
Astoria
Long Beach
Rockaway Beach
Beaverton
Depoe Bay
Hillsboro
Tigard
Hood River
Longview
Troutdale
Newberg
The Dalles
McMinnville
Gresham
Clackamas

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from San Antonio to Portland. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo allows you to filter the results for San Antonio to Portland flights to just show those with flexible booking policies.

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

momondo provides multiple filters to help you find the best flight to Portland from San Antonio. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to Portland from San Antonio. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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