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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
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.
Delta Logo
6:04 pm - 11:20 pm
SAT
-
PDX
7h 16m
1 stop
Delta Logo
6:20 am - 2:57 pm
PDX
-
SAT
6h 37m
1 stop
$267Delta
Thu, Aug 20 - Mon, Aug 24
Delta Logo
7:30 am - 12:24 pm
SAT
-
PDX
6h 54m
1 stop
Delta Logo
10:55 pm - 11:10 am
PDX
-
SAT
10h 15m
1 stop
$269Delta
Thu, Aug 13 - Mon, Aug 17
United Airlines Logo
4:12 pm - 10:45 pm
SAT
-
PDX
8h 33m
2 stops
United Airlines Logo
9:00 am - 5:56 pm
PDX
-
SAT
6h 56m
1 stop
$272United Airlines
Tue, Sep 1 - Sat, Sep 5
Southwest Logo
11:30 am - 5:50 pm
SAT
-
PDX
8h 20m
2 stops
Southwest Logo
10:45 pm - 11:00 am
PDX
-
SAT
10h 15m
1 stop
$274Southwest
Wed, Sep 9 - Mon, Sep 14
Southwest Logo
5:00 pm - 9:20 pm
SAT
-
PDX
6h 20m
1 stop
Southwest Logo
6:00 am - 4:25 pm
PDX
-
SAT
8h 25m
2 stops
$276Southwest
Sat, Aug 8 - Sat, Aug 15
Southwest Logo
1:25 pm - 9:45 pm
SAT
-
PDX
10h 20m
2 stops
Southwest Logo
6:55 am - 6:00 pm
PDX
-
SAT
9h 05m
2 stops
$277Southwest
Mon, Aug 17 - Wed, Aug 19
Southwest Logo
11:05 am - 7:20 pm
SAT
-
PDX
10h 15m
2 stops
Southwest Logo
12:40 pm - 10:15 pm
PDX
-
SAT
7h 35m
2 stops
$279Southwest
Thu, Aug 20 - Mon, Aug 24
Southwest Logo
2:20 pm - 11:40 pm
SAT
-
PDX
11h 20m
1 stop
Southwest Logo
12:40 pm - 11:55 pm
PDX
-
SAT
9h 15m
2 stops
$280Southwest
Thu, Aug 6 - Thu, Aug 13
Southwest Logo
9:20 am - 3:00 pm
SAT
-
PDX
7h 40m
2 stops
Southwest Logo
11:20 am - 9:25 pm
PDX
-
SAT
8h 05m
2 stops
$281Southwest
Tue, Sep 1 - Sat, Sep 5
Southwest Logo
11:05 am - 7:20 pm
SAT
-
PDX
10h 15m
2 stops
Southwest Logo
5:00 am - 7:20 pm
PDX
-
SAT
12h 20m
2 stops
$287Southwest
Thu, Aug 20 - Mon, Aug 24

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Delta flights from San Antonio to Portland

Our best Delta deals on San Antonio to Portland flight tickets
Delta
Aug 20
SAT6:04 pmSan Antonio
7h 16m
1 stop
PDX11:20 pmPortland
Aug 24
PDX6:20 amPortland
6h 37m
1 stop
SAT2:57 pmSan Antonio
$267
Delta
Aug 13
SAT7:30 amSan Antonio
6h 54m
1 stop
PDX12:24 pmPortland
Aug 17
PDX10:55 pmPortland
10h 15m
1 stop
SAT11:10 amSan Antonio
$269
Delta
Sep 6
SAT6:35 amSan Antonio
7h 35m
1 stop
PDX12:10 pmPortland
Sep 10
PDX2:10 pmPortland
8h 00m
1 stop
SAT12:10 amSan Antonio
$295

Frontier flights from San Antonio to Portland

Our best Frontier deals on San Antonio to Portland flight tickets
Frontier
Aug 13
SAT9:32 pmSan Antonio
21h 22m
1 stop
PDX4:54 pmPortland
Aug 16
PDX6:49 pmPortland
23h 48m
1 stop
SAT8:37 pmSan Antonio
$288
Frontier
Aug 6
SAT9:32 pmSan Antonio
21h 22m
1 stop
PDX4:54 pmPortland
Aug 9
PDX6:49 pmPortland
23h 48m
1 stop
SAT8:37 pmSan Antonio
$296
Frontier
Oct 8
SAT10:41 pmSan Antonio
23h 58m
1 stop
PDX8:39 pmPortland
Oct 11
PDX12:34 pmPortland
20h 47m
1 stop
SAT11:21 amSan Antonio
$298

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 July 12, 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
Quickest round-trip

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Thu 8/20

6:04 pm-11:20 pm

1 stop7h 16m

Portland

Mon 8/24

6:20 am-2:57 pm

1 stop6h 37m

$267

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Thu 8/13

7:30 am-12:24 pm

1 stop6h 54m

Portland

Mon 8/17

10:55 pm-11:10 am

1 stop10h 15m

$269

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Tue 9/1

4:12 pm-10:45 pm

2 stops8h 33m

Portland

Sat 9/5

9:00 am-5:56 pm

1 stop6h 56m

$272

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Wed 9/9

11:30 am-5:50 pm

2 stops8h 20m

Portland

Mon 9/14

10:45 pm-11:00 am

1 stop10h 15m

$274

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Sat 8/8

5:00 pm-9:20 pm

1 stop6h 20m

Portland

Sat 8/15

6:00 am-4:25 pm

2 stops8h 25m

$276

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Mon 8/17

1:25 pm-9:45 pm

2 stops10h 20m

Portland

Wed 8/19

6:55 am-6:00 pm

2 stops9h 05m

$277

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Thu 8/20

11:05 am-7:20 pm

2 stops10h 15m

Portland

Mon 8/24

12:40 pm-10:15 pm

2 stops7h 35m

$279

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Thu 8/6

2:20 pm-11:40 pm

1 stop11h 20m

Portland

Thu 8/13

12:40 pm-11:55 pm

2 stops9h 15m

$280

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Tue 9/1

9:20 am-3:00 pm

2 stops7h 40m

Portland

Sat 9/5

11:20 am-9:25 pm

2 stops8h 05m

$281

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Thu 8/20

11:05 am-7:20 pm

2 stops10h 15m

Portland

Mon 8/24

5:00 am-7:20 pm

2 stops12h 20m

$287

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 $311, 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 $420 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 $328 on momondo.

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

As of July 2026, prices for San Antonio to Portland flights are approximately 8% 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

5h 50m

Direct flights

None
The fastest flight from San Antonio to Portland takes 5h 50m
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 5h 50m 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
2,824 reviews
Search Frontier flights
Alaska AirlinesPriceFrom $157Free CancellationRating
7.9
12,655 reviews
Search Alaska Airlines flights
DeltaPriceFrom $237Free CancellationRating
7.8
8,458 reviews
Search Delta flights
SouthwestPriceFrom $286Free CancellationRating
7.9
4,251 reviews
Search Southwest flights
American AirlinesPriceFrom $306Free CancellationRating
7.1
11,804 reviews
Search American Airlines flights
United AirlinesPriceFrom $348Free CancellationRating
7.4
9,980 reviews
Search United Airlines flights

  • Southwest Flights From San Antonio to Portland

    Southwest operates around 4 flights from San Antonio to Portland every week. The average price of these flights found in the last 72 hours has been $469, but momondo users have found Southwest deals from San Antonio to Portland from as low as $286 round-trip. Southwest has been scored 7.9/10 in 4,251 reviews.

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
Depoe Bay
Tigard
Hood River
Longview
Newberg
Clackamas
Troutdale
McMinnville
Gresham
The Dalles

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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