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Cheap flights from San Antonio to Portland from $88

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 4/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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
4:04 pm - 11:52 am
SAT
-
PDX
21h 48m
1 stop
Frontier Logo
1:48 pm - 2:19 pm
PDX
-
SAT
22h 31m
1 stop
$135Frontier
Tue, Apr 21 - Wed, May 6
Frontier Logo
4:04 pm - 11:52 am
SAT
-
PDX
21h 48m
1 stop
Frontier Logo
12:38 pm - 2:15 pm
PDX
-
SAT
23h 37m
1 stop
$157Frontier
Tue, Apr 21 - Wed, Apr 29
Frontier Logo
4:04 pm - 11:52 am
SAT
-
PDX
21h 48m
1 stop
Frontier Logo
11:58 am - 2:19 pm
PDX
-
SAT
24h 21m
1 stop
$162Frontier
Tue, Apr 21 - Mon, May 4
Frontier Logo
4:04 pm - 10:20 am
SAT
-
PDX
20h 16m
1 stop
Frontier Logo
12:38 pm - 2:15 pm
PDX
-
SAT
23h 37m
1 stop
$163Frontier
Sat, Apr 25 - Wed, Apr 29
Frontier Logo
4:49 pm - 11:03 am
SAT
-
PDX
20h 14m
1 stop
Frontier Logo
11:15 am - 2:15 pm
PDX
-
SAT
25h 00m
1 stop
$165Frontier
Wed, Apr 22 - Sun, Apr 26
Frontier Logo
4:04 pm - 11:52 am
SAT
-
PDX
21h 48m
1 stop
Frontier Logo
11:58 am - 2:15 pm
PDX
-
SAT
24h 17m
1 stop
$174Frontier
Tue, Apr 21 - Thu, Apr 30
Frontier Logo
3:00 pm - 11:52 am
SAT
-
PDX
22h 52m
1 stop
Frontier Logo
1:48 pm - 2:19 pm
PDX
-
SAT
22h 31m
1 stop
$175Frontier
Mon, Apr 20 - Wed, May 6
Frontier Logo
4:04 pm - 11:52 am
SAT
-
PDX
21h 48m
1 stop
Frontier Logo
12:27 pm - 2:13 pm
PDX
-
SAT
23h 46m
1 stop
$179Frontier
Tue, Apr 21 - Sat, May 2
Frontier Logo
4:04 pm - 11:52 am
SAT
-
PDX
21h 48m
1 stop
Frontier Logo
1:48 pm - 2:19 pm
PDX
-
SAT
22h 31m
1 stop
$180Frontier
Tue, Apr 21 - Tue, May 5
Frontier Logo
3:14 pm - 11:42 am
SAT
-
PDX
22h 28m
1 stop
Frontier Logo
1:48 pm - 2:19 pm
PDX
-
SAT
22h 31m
1 stop
$185Frontier
Fri, May 8 - Tue, May 12

Frontier flights from San Antonio to Portland

Our best Frontier deals on San Antonio to Portland flight tickets
Frontier
Apr 21
SAT4:04 pmSan Antonio
21h 48m
1 stop
PDX11:52 amPortland
Apr 29
PDX12:38 pmPortland
23h 37m
1 stop
SAT2:15 pmSan Antonio
$135
Frontier
Apr 21
SAT4:04 pmSan Antonio
21h 48m
1 stop
PDX11:52 amPortland
Apr 29
PDX12:38 pmPortland
23h 37m
1 stop
SAT2:15 pmSan Antonio
$157
Frontier
Apr 21
SAT4:04 pmSan Antonio
21h 48m
1 stop
PDX11:52 amPortland
May 4
PDX11:58 amPortland
24h 21m
1 stop
SAT2:19 pmSan Antonio
$162

United Airlines flights from San Antonio to Portland

Our best United Airlines deals on San Antonio to Portland flight tickets
United Airlines
Mar 23
SAT5:50 pmSan Antonio
7h 21m
1 stop
PDX11:11 pmPortland
Mar 28
PDX5:05 amPortland
6h 08m
1 stop
SAT1:13 pmSan Antonio
$427
United Airlines
Mar 23
SAT2:20 pmSan Antonio
8h 50m
2 stops
PDX9:10 pmPortland
Mar 28
PDX5:05 amPortland
6h 08m
1 stop
SAT1:13 pmSan Antonio
$432

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 March 10, 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 4/21

4:04 pm-11:52 am

1 stop21h 48m

Portland

Wed 5/6

1:48 pm-2:19 pm

1 stop22h 31m

$135

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Tue 4/21

4:04 pm-11:52 am

1 stop21h 48m

Portland

Wed 4/29

12:38 pm-2:15 pm

1 stop23h 37m

$157

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Tue 4/21

4:04 pm-11:52 am

1 stop21h 48m

Portland

Mon 5/4

11:58 am-2:19 pm

1 stop24h 21m

$162
Quickest round-trip

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Sat 4/25

4:04 pm-10:20 am

1 stop20h 16m

Portland

Wed 4/29

12:38 pm-2:15 pm

1 stop23h 37m

$163

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Wed 4/22

4:49 pm-11:03 am

1 stop20h 14m

Portland

Sun 4/26

11:15 am-2:15 pm

1 stop25h 00m

$165

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Tue 4/21

4:04 pm-11:52 am

1 stop21h 48m

Portland

Thu 4/30

11:58 am-2:15 pm

1 stop24h 17m

$174

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Mon 4/20

3:00 pm-11:52 am

1 stop22h 52m

Portland

Wed 5/6

1:48 pm-2:19 pm

1 stop22h 31m

$175

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Tue 4/21

4:04 pm-11:52 am

1 stop21h 48m

Portland

Sat 5/2

12:27 pm-2:13 pm

1 stop23h 46m

$179

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Tue 4/21

4:04 pm-11:52 am

1 stop21h 48m

Portland

Tue 5/5

1:48 pm-2:19 pm

1 stop22h 31m

$180

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Fri 5/8

3:14 pm-11:42 am

1 stop22h 28m

Portland

Tue 5/12

1:48 pm-2:19 pm

1 stop22h 31m

$185

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 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 May to fly from San Antonio, when ticket prices are also cheap, with an average price of $349.

How far in advance should I book a flight 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 $397 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 $314 on momondo.

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

As of March 2026, prices for San Antonio to Portland flights are approximately 6% cheaper 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 18m

Direct flights

None
The fastest flight from San Antonio to Portland takes 6h 18m
There are no direct flights from San Antonio to Portland. There are no popular flight routes from San Antonio to Portland.
Search flight deals

  • How far is San Antonio to Portland by plane?

    Portland is 1717.5 mi away from San Antonio. Typically, this will take 6h 18m 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
5.7
3,033 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $147Free CancellationRating
6.3
8,513 reviews
Search Spirit Airlines flights
Alaska AirlinesPriceFrom $157Free CancellationRating
8.0
12,018 reviews
Search Alaska Airlines flights
DeltaPriceFrom $237Free CancellationRating
7.9
8,276 reviews
Search Delta flights
SouthwestPriceFrom $277Free CancellationRating
8.0
4,317 reviews
Search Southwest flights
American AirlinesPriceFrom $286Free CancellationRating
7.1
11,414 reviews
Search American Airlines flights
United AirlinesPriceFrom $304Free CancellationRating
7.4
9,409 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
Depoe Bay
Beaverton
Hillsboro
Tigard
Hood River
Longview
McMinnville
The Dalles
Pacific City
Newberg
Gresham
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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