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Cheap flights from San Antonio to Portland from $120

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 9/26. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from San Antonio to Portland

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
12:43 pm - 8:39 pmSAT  San Antonio-PDX Portland
9h 56m1 stop Las Vegas Harry Reid Intl
Frontier Logo
9:34 pm - 9:46 pmPDX  Portland-SAT San Antonio
22h 12m1 stop Las Vegas Harry Reid Intl
$228Frontier
Mon, Oct 19 - Thu, Oct 22
Frontier Logo
8:20 pm - 11:43 amSAT  San Antonio-PDX Portland
17h 23m1 stop Denver Intl
Frontier Logo
12:24 pm - 11:44 amPDX  Portland-SAT San Antonio
21h 20m1 stop Las Vegas Harry Reid Intl
$238Frontier
Sat, Sep 19 - Sat, Sep 26
United Airlines Logo
1:45 pm - 5:50 pmSAT  San Antonio-PDX Portland
6h 05m1 stop Denver Intl
United Airlines Logo
8:40 am - 4:55 pmPDX  Portland-SAT San Antonio
6h 15m1 stop Denver Intl
$323United Airlines
Sat, Sep 5 - Sun, Sep 6
American Airlines Logo
12:40 pm - 6:59 pmSAT  San Antonio-PDX Portland
8h 19m1 stop Dallas/Fort Worth
American Airlines Logo
12:01 pm - 10:50 pmPDX  Portland-SAT San Antonio
8h 49m1 stop Dallas/Fort Worth
$328American Airlines
Sun, Sep 6 - Thu, Sep 10
Delta Logo
7:42 am - 12:24 pmSAT  San Antonio-PDX Portland
6h 42m1 stop Los Angeles Los Angeles
Delta Logo
6:20 am - 3:59 pmPDX  Portland-SAT San Antonio
7h 39m1 stop Los Angeles Los Angeles
$335Delta
Tue, Sep 1 - Sun, Sep 6
Delta Logo
12:05 pm - 9:44 pmSAT  San Antonio-PDX Portland
11h 39m1 stop Atlanta Hartsfield-Jackson
Delta Logo
5:45 am - 1:31 pmPDX  Portland-SAT San Antonio
5h 46m1 stop Salt Lake City
$335Delta
Tue, Sep 1 - Sun, Sep 6
American Airlines Logo
6:00 am - 10:50 amSAT  San Antonio-PDX Portland
6h 50m1 stop Dallas/Fort Worth
American Airlines Logo
11:58 am - 10:00 pmPDX  Portland-SAT San Antonio
8h 02m1 stop Dallas/Fort Worth
$335American Airlines
Tue, Sep 1 - Sat, Sep 5
United Airlines Logo
4:39 pm - 9:05 pmSAT  San Antonio-PDX Portland
6h 26m1 stop Denver Intl
United Airlines Logo
9:00 am - 5:56 pmPDX  Portland-SAT San Antonio
6h 56m1 stop San Francisco
$335United Airlines
Sat, Sep 5 - Wed, Sep 9
Multiple Airlines Logo
12:16 pm - 4:35 pmSAT  San Antonio-PDX Portland
6h 19m1 stop Denver Intl
Multiple Airlines Logo
6:40 am - 4:04 pmPDX  Portland-SAT San Antonio
7h 24m1 stop Los Angeles Los Angeles
$338Multiple Airlines
Sat, Oct 17 - Wed, Oct 21
Multiple Airlines Logo
3:09 pm - 9:55 pmSAT  San Antonio-PDX Portland
8h 46m1 stop Los Angeles Los Angeles
Multiple Airlines Logo
12:39 pm - 2:20 pmPDX  Portland-SAT San Antonio
23h 41m1 stop Las Vegas Harry Reid Intl
$343Multiple Airlines
Sat, Sep 26 - Mon, Sep 28

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American Airlines flights from San Antonio to Portland

Our best American Airlines deals on San Antonio to Portland flight tickets
American Airlines
Sep 6
SAT12:40 pmSan Antonio
8h 19m
1 stop
PDX6:59 pmPortland
Sep 10
PDX12:01 pmPortland
8h 49m
1 stop
SAT10:50 pmSan Antonio
$328
American Airlines
Oct 1
SAT7:10 pmSan Antonio
6h 02m
1 stop
PDX11:12 pmPortland
Oct 5
PDX11:49 pmPortland
7h 57m
1 stop
SAT9:46 amSan Antonio
$364
American Airlines
Sep 22
SAT5:41 pmSan Antonio
7h 42m
1 stop
PDX11:23 pmPortland
Oct 4
PDX5:10 amPortland
5h 52m
1 stop
SAT1:02 pmSan Antonio
$377

Southwest flights from San Antonio to Portland

Our best Southwest deals on San Antonio to Portland flight tickets
Southwest
Aug 25
SAT12:10 pmSan Antonio
9h 40m
2 stops
PDX7:50 pmPortland
Sep 1
PDX5:50 amPortland
7h 00m
1 stop
SAT2:50 pmSan Antonio
$352
Southwest
Sep 22
SAT12:10 pmSan Antonio
9h 45m
2 stops
PDX7:55 pmPortland
Oct 3
PDX11:20 amPortland
9h 30m
2 stops
SAT10:50 pmSan Antonio
$357
Southwest
Sep 5
SAT2:30 pmSan Antonio
8h 55m
2 stops
PDX9:25 pmPortland
Sep 12
PDX9:00 amPortland
7h 45m
2 stops
SAT6:45 pmSan Antonio
$395

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 August 9, 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 San Antonio - PDX Portland

SATPDX

San Antonio

Mon 10/19

12:43 pm-8:39 pm

1 stop9h 56m

Portland

Thu 10/22

9:34 pm-9:46 pm

1 stop22h 12m

$228

San AntonioPortland

SAT San Antonio - PDX Portland

SATPDX

San Antonio

Sat 9/19

8:20 pm-11:43 am

1 stop17h 23m

Portland

Sat 9/26

12:24 pm-11:44 am

1 stop21h 20m

$238
Quickest round-trip

San AntonioPortland

SAT San Antonio - PDX Portland

SATPDX

San Antonio

Sat 9/5

1:45 pm-5:50 pm

1 stop6h 05m

Portland

Sun 9/6

8:40 am-4:55 pm

1 stop6h 15m

$323

San AntonioPortland

SAT San Antonio - PDX Portland

SATPDX

San Antonio

Sun 9/6

12:40 pm-6:59 pm

1 stop8h 19m

Portland

Thu 9/10

12:01 pm-10:50 pm

1 stop8h 49m

$328

San AntonioPortland

SAT San Antonio - PDX Portland

SATPDX

San Antonio

Tue 9/1

7:42 am-12:24 pm

1 stop6h 42m

Portland

Sun 9/6

6:20 am-3:59 pm

1 stop7h 39m

$335

San AntonioPortland

SAT San Antonio - PDX Portland

SATPDX

San Antonio

Tue 9/1

12:05 pm-9:44 pm

1 stop11h 39m

Portland

Sun 9/6

5:45 am-1:31 pm

1 stop5h 46m

$335

San AntonioPortland

SAT San Antonio - PDX Portland

SATPDX

San Antonio

Tue 9/1

6:00 am-10:50 am

1 stop6h 50m

Portland

Sat 9/5

11:58 am-10:00 pm

1 stop8h 02m

$335

San AntonioPortland

SAT San Antonio - PDX Portland

SATPDX

San Antonio

Sat 9/5

4:39 pm-9:05 pm

1 stop6h 26m

Portland

Wed 9/9

9:00 am-5:56 pm

1 stop6h 56m

$335

San AntonioPortland

SAT San Antonio - PDX Portland

SATPDX

San Antonio

Sat 10/17

12:16 pm-4:35 pm

1 stop6h 19m

Portland

Wed 10/21

6:40 am-4:04 pm

1 stop7h 24m

$338

San AntonioPortland

SAT San Antonio - PDX Portland

SATPDX

San Antonio

Sat 9/26

3:09 pm-9:55 pm

1 stop8h 46m

Portland

Mon 9/28

12:39 pm-2:20 pm

1 stop23h 41m

$343

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?

Prices are currently low for flights on this route.

Typical prices usually range from $318 to $496.
The lowest price recently found on this route was $228.

What is the cheapest month to fly to Portland?

The cheapest month to fly to Portland from San Antonio is in October. Flight prices, which tend to average around $358, are often lower during this time because this is during the off-season. If you don’t want to visit Portland in October, then you should wait until February to fly from San Antonio, when ticket prices are also cheap, with an average price of $399.

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 $427 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 $356 on momondo.

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

As of August 2026, prices for San Antonio to Portland flights are approximately 100% 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 05m

Direct flights

None
The fastest flight from San Antonio to Portland takes 6h 05m
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 05m 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 $91Free CancellationRating
5.6
2,717 reviews
Search Frontier flights
Alaska AirlinesPriceFrom $157Free CancellationRating
7.9
12,790 reviews
Search Alaska Airlines flights
DeltaPriceFrom $237Free CancellationRating
7.8
8,496 reviews
Search Delta flights
SouthwestPriceFrom $300Free CancellationRating
8.0
4,217 reviews
Search Southwest flights
United AirlinesPriceFrom $304Free CancellationRating
7.4
10,090 reviews
Search United Airlines flights
American AirlinesPriceFrom $315Free CancellationRating
7.1
11,895 reviews
Search American Airlines flights

Traveling to a place near Portland?

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

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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