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Cheap flights from San Antonio to Portland from $113

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 6/30. 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.
Frontier Logo
11:08 am - 4:35 pm
SAT
-
PDX
7h 27m
1 stop
Frontier Logo
9:03 pm - 11:48 am
PDX
-
SAT
12h 45m
1 stop
$250Frontier
Thu, Oct 29 - Thu, Nov 5
Frontier Logo
8:56 pm - 5:24 pm
SAT
-
PDX
22h 28m
1 stop
Frontier Logo
12:26 pm - 6:56 pm
PDX
-
SAT
28h 30m
1 stop
$259Frontier
Sun, Aug 23 - Sat, Aug 29
Frontier Logo
7:54 pm - 4:46 pm
SAT
-
PDX
22h 52m
1 stop
Frontier Logo
12:35 pm - 6:59 pm
PDX
-
SAT
28h 24m
1 stop
$261Frontier
Thu, Jun 4 - Sat, Jun 6
Frontier Logo
7:54 pm - 4:35 pm
SAT
-
PDX
22h 41m
1 stop
Frontier Logo
8:42 pm - 8:11 pm
PDX
-
SAT
21h 29m
1 stop
$262Frontier
Mon, Jun 8 - Mon, Jun 15
Frontier Logo
11:08 am - 4:35 pm
SAT
-
PDX
7h 27m
1 stop
Frontier Logo
3:22 pm - 6:54 pm
PDX
-
SAT
25h 32m
1 stop
$263Frontier
Sat, Sep 19 - Wed, Sep 23
Frontier Logo
8:59 pm - 10:20 am
SAT
-
PDX
15h 21m
1 stop
Frontier Logo
8:42 pm - 8:11 pm
PDX
-
SAT
21h 29m
1 stop
$272Frontier
Sun, May 31 - Mon, Jun 15
Frontier Logo
7:51 pm - 4:57 pm
SAT
-
PDX
23h 06m
1 stop
Frontier Logo
8:42 pm - 8:11 pm
PDX
-
SAT
21h 29m
1 stop
$277Frontier
Sat, Jun 13 - Sun, Jun 14
Frontier Logo
7:54 pm - 5:01 pm
SAT
-
PDX
23h 07m
1 stop
Frontier Logo
12:35 pm - 6:59 pm
PDX
-
SAT
28h 24m
1 stop
$278Frontier
Mon, Jun 1 - Thu, Jun 4
Frontier Logo
7:54 pm - 4:46 pm
SAT
-
PDX
22h 52m
1 stop
Frontier Logo
12:35 pm - 6:56 pm
PDX
-
SAT
28h 21m
1 stop
$282Frontier
Fri, Jun 5 - Mon, Jun 8
Frontier Logo
7:54 pm - 4:46 pm
SAT
-
PDX
22h 52m
1 stop
Frontier Logo
12:35 pm - 6:56 pm
PDX
-
SAT
28h 21m
1 stop
$284Frontier
Thu, Jun 4 - Mon, Jun 8

Frontier flights from San Antonio to Portland

Our best Frontier deals on San Antonio to Portland flight tickets
Frontier
Oct 29
SAT11:08 amSan Antonio
7h 27m
1 stop
PDX4:35 pmPortland
Nov 5
PDX9:03 pmPortland
12h 45m
1 stop
SAT11:48 amSan Antonio
$250
Frontier
Aug 23
SAT8:56 pmSan Antonio
22h 28m
1 stop
PDX5:24 pmPortland
Aug 29
PDX12:26 pmPortland
28h 30m
1 stop
SAT6:56 pmSan Antonio
$259
Frontier
Jun 4
SAT7:54 pmSan Antonio
22h 52m
1 stop
PDX4:46 pmPortland
Jun 6
PDX12:35 pmPortland
28h 24m
1 stop
SAT6:59 pmSan Antonio
$261

Southwest flights from San Antonio to Portland

Our best Southwest deals on San Antonio to Portland flight tickets
Southwest
May 27
SAT4:25 pmSan Antonio
8h 35m
2 stops
PDX11:00 pmPortland
Jun 15
PDX12:15 pmPortland
10h 55m
2 stops
SAT1:10 amSan Antonio
$543
Southwest
May 17
SAT6:55 pmSan Antonio
8h 30m
2 stops
PDX1:25 amPortland
May 29
PDX3:00 pmPortland
6h 30m
1 stop
SAT11:30 pmSan Antonio
$697
Southwest
May 17
SAT6:55 pmSan Antonio
8h 30m
2 stops
PDX1:25 amPortland
May 29
PDX6:25 amPortland
8h 45m
2 stops
SAT5:10 pmSan Antonio
$747

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 May 15, 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 10/29

11:08 am-4:35 pm

1 stop7h 27m

Portland

Thu 11/5

9:03 pm-11:48 am

1 stop12h 45m

$250

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Sun 8/23

8:56 pm-5:24 pm

1 stop22h 28m

Portland

Sat 8/29

12:26 pm-6:56 pm

1 stop28h 30m

$259

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Thu 6/4

7:54 pm-4:46 pm

1 stop22h 52m

Portland

Sat 6/6

12:35 pm-6:59 pm

1 stop28h 24m

$261

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Mon 6/8

7:54 pm-4:35 pm

1 stop22h 41m

Portland

Mon 6/15

8:42 pm-8:11 pm

1 stop21h 29m

$262

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Sat 9/19

11:08 am-4:35 pm

1 stop7h 27m

Portland

Wed 9/23

3:22 pm-6:54 pm

1 stop25h 32m

$263

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Sun 5/31

8:59 pm-10:20 am

1 stop15h 21m

Portland

Mon 6/15

8:42 pm-8:11 pm

1 stop21h 29m

$272

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Sat 6/13

7:51 pm-4:57 pm

1 stop23h 06m

Portland

Sun 6/14

8:42 pm-8:11 pm

1 stop21h 29m

$277

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Mon 6/1

7:54 pm-5:01 pm

1 stop23h 07m

Portland

Thu 6/4

12:35 pm-6:59 pm

1 stop28h 24m

$278

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Fri 6/5

7:54 pm-4:46 pm

1 stop22h 52m

Portland

Mon 6/8

12:35 pm-6:56 pm

1 stop28h 21m

$282

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Thu 6/4

7:54 pm-4:46 pm

1 stop22h 52m

Portland

Mon 6/8

12:35 pm-6:56 pm

1 stop28h 21m

$284

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 $307, 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 $331 on momondo.

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

As of May 2026, prices for San Antonio to Portland flights are approximately 78% 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 40m

Direct flights

None
The fastest flight from San Antonio to Portland takes 5h 40m
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 40m 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
2,951 reviews
Search Frontier flights
Alaska AirlinesPriceFrom $157Free CancellationRating
7.9
12,367 reviews
Search Alaska Airlines flights
DeltaPriceFrom $237Free CancellationRating
7.9
8,454 reviews
Search Delta flights
SouthwestPriceFrom $278Free CancellationRating
8.0
4,299 reviews
Search Southwest flights
American AirlinesPriceFrom $296Free CancellationRating
7.1
11,662 reviews
Search American Airlines flights
United AirlinesPriceFrom $304Free CancellationRating
7.4
9,724 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
Longview
Hood River
Troutdale
Newberg
The Dalles
Gresham
McMinnville
Manzanita

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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