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Cheap flights from San Antonio to Portland from $131

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 7/8. 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
9:32 pm - 6:04 pm
SAT
-
PDX
22h 32m
1 stop
Frontier Logo
5:56 pm - 6:54 pm
PDX
-
SAT
22h 58m
1 stop
$252Frontier
Wed, Aug 12 - Wed, Aug 19
Frontier Logo
9:32 pm - 4:54 pm
SAT
-
PDX
21h 22m
1 stop
Frontier Logo
5:21 pm - 6:44 pm
PDX
-
SAT
23h 23m
1 stop
$264Frontier
Thu, Jul 9 - Wed, Jul 15
Frontier Logo
7:39 pm - 4:36 pm
SAT
-
PDX
22h 57m
1 stop
Frontier Logo
5:49 pm - 8:37 pm
PDX
-
SAT
24h 48m
1 stop
$267Frontier
Tue, Jul 21 - Mon, Jul 27
Frontier Logo
9:32 pm - 4:54 pm
SAT
-
PDX
21h 22m
1 stop
Frontier Logo
6:49 pm - 8:37 pm
PDX
-
SAT
23h 48m
1 stop
$273Frontier
Thu, Aug 13 - Sun, Aug 16
Frontier Logo
8:56 pm - 5:24 pm
SAT
-
PDX
22h 28m
1 stop
Frontier Logo
6:19 pm - 8:11 pm
PDX
-
SAT
23h 52m
1 stop
$281Frontier
Thu, Aug 20 - Sun, Aug 23
Frontier Logo
7:39 pm - 4:51 pm
SAT
-
PDX
23h 12m
1 stop
Frontier Logo
5:21 pm - 6:44 pm
PDX
-
SAT
23h 23m
1 stop
$282Frontier
Wed, Jul 8 - Wed, Jul 15
Frontier Logo
8:56 pm - 5:24 pm
SAT
-
PDX
22h 28m
1 stop
Frontier Logo
6:19 pm - 8:11 pm
PDX
-
SAT
23h 52m
1 stop
$283Frontier
Thu, Aug 20 - Sun, Aug 23
Frontier Logo
7:39 pm - 4:31 pm
SAT
-
PDX
22h 52m
1 stop
Frontier Logo
12:20 pm - 6:44 pm
PDX
-
SAT
28h 24m
1 stop
$288Frontier
Mon, Jul 20 - Sat, Jul 25
Frontier Logo
7:49 pm - 4:51 pm
SAT
-
PDX
23h 02m
1 stop
Frontier Logo
6:19 pm - 8:11 pm
PDX
-
SAT
23h 52m
1 stop
$300Frontier
Fri, Aug 14 - Fri, Aug 21
Frontier Logo
7:51 pm - 4:35 pm
SAT
-
PDX
22h 44m
1 stop
Frontier Logo
6:19 pm - 8:11 pm
PDX
-
SAT
23h 52m
1 stop
$301Frontier
Tue, Jun 30 - Fri, Jul 3

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Frontier flights from San Antonio to Portland

Our best Frontier deals on San Antonio to Portland flight tickets
Frontier
Aug 12
SAT9:32 pmSan Antonio
22h 32m
1 stop
PDX6:04 pmPortland
Aug 19
PDX5:56 pmPortland
22h 58m
1 stop
SAT6:54 pmSan Antonio
$252
Frontier
Jul 9
SAT9:32 pmSan Antonio
21h 22m
1 stop
PDX4:54 pmPortland
Jul 15
PDX5:21 pmPortland
23h 23m
1 stop
SAT6:44 pmSan Antonio
$264
Frontier
Jul 21
SAT7:39 pmSan Antonio
22h 57m
1 stop
PDX4:36 pmPortland
Jul 27
PDX5:49 pmPortland
24h 48m
1 stop
SAT8:37 pmSan Antonio
$267

American Airlines flights from San Antonio to Portland

Our best American Airlines deals on San Antonio to Portland flight tickets
American Airlines
Jun 22
SAT5:35 pmSan Antonio
9h 15m
1 stop
PDX12:50 amPortland
Jun 30
PDX5:06 amPortland
6h 57m
1 stop
SAT2:03 pmSan Antonio
$414
American Airlines
Jun 26
SAT8:23 pmSan Antonio
6h 27m
1 stop
PDX12:50 amPortland
Jun 29
PDX11:43 pmPortland
6h 57m
1 stop
SAT8:40 amSan Antonio
$437
American Airlines
Jul 1
SAT5:35 pmSan Antonio
7h 16m
1 stop
PDX10:51 pmPortland
Jul 4
PDX5:07 amPortland
6h 04m
1 stop
SAT1:11 pmSan Antonio
$461

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 18, 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

Wed 8/12

9:32 pm-6:04 pm

1 stop22h 32m

Portland

Wed 8/19

5:56 pm-6:54 pm

1 stop22h 58m

$252
Quickest round-trip

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Thu 7/9

9:32 pm-4:54 pm

1 stop21h 22m

Portland

Wed 7/15

5:21 pm-6:44 pm

1 stop23h 23m

$264

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Tue 7/21

7:39 pm-4:36 pm

1 stop22h 57m

Portland

Mon 7/27

5:49 pm-8:37 pm

1 stop24h 48m

$267

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Thu 8/13

9:32 pm-4:54 pm

1 stop21h 22m

Portland

Sun 8/16

6:49 pm-8:37 pm

1 stop23h 48m

$273

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Thu 8/20

8:56 pm-5:24 pm

1 stop22h 28m

Portland

Sun 8/23

6:19 pm-8:11 pm

1 stop23h 52m

$281

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Wed 7/8

7:39 pm-4:51 pm

1 stop23h 12m

Portland

Wed 7/15

5:21 pm-6:44 pm

1 stop23h 23m

$282

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Thu 8/20

8:56 pm-5:24 pm

1 stop22h 28m

Portland

Sun 8/23

6:19 pm-8:11 pm

1 stop23h 52m

$283

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Mon 7/20

7:39 pm-4:31 pm

1 stop22h 52m

Portland

Sat 7/25

12:20 pm-6:44 pm

1 stop28h 24m

$288

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Fri 8/14

7:49 pm-4:51 pm

1 stop23h 02m

Portland

Fri 8/21

6:19 pm-8:11 pm

1 stop23h 52m

$300

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Tue 6/30

7:51 pm-4:35 pm

1 stop22h 44m

Portland

Fri 7/3

6:19 pm-8:11 pm

1 stop23h 52m

$301

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 $358.

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 $418 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 $377 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 4% 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 $97Free CancellationRating
5.6
2,880 reviews
Search Frontier flights
Alaska AirlinesPriceFrom $157Free CancellationRating
7.9
12,536 reviews
Search Alaska Airlines flights
DeltaPriceFrom $237Free CancellationRating
7.8
8,410 reviews
Search Delta flights
SouthwestPriceFrom $282Free CancellationRating
7.9
4,236 reviews
Search Southwest flights
American AirlinesPriceFrom $296Free CancellationRating
7.1
11,689 reviews
Search American Airlines flights
United AirlinesPriceFrom $348Free CancellationRating
7.4
9,860 reviews
Search United Airlines flights

  • Southwest Flights From San Antonio to Portland

    Southwest operates around 3 flights from San Antonio to Portland every week. The average price of these flights found in the last 72 hours has been $455, but momondo users have found Southwest deals from San Antonio to Portland from as low as $282 round-trip. Southwest has been scored 7.9/10 in 4,235 reviews.

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
Longview
Hood River
Newberg
Troutdale
Clackamas
The Dalles
Gresham
McMinnville

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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