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Cheap flights from San Antonio to Portland from $91

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 12/15. 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
7:56 pm - 11:56 amSAT-PDX
18h 00m1 stop
Frontier Logo
12:51 pm - 7:00 pmPDX-SAT
28h 09m1 stop
$130Frontier
Find Deal
Thu, Dec 4 - Thu, Dec 11
Frontier Logo
1:51 pm - 9:34 amSAT-PDX
21h 43m1 stop
Frontier Logo
12:51 pm - 7:00 pmPDX-SAT
28h 09m1 stop
$131Frontier
Find Deal
Thu, Dec 4 - Thu, Dec 11
Frontier Logo
1:51 pm - 11:56 amSAT-PDX
24h 05m2 stops
Frontier Logo
12:51 pm - 7:00 pmPDX-SAT
28h 09m1 stop
$175Frontier
Find Deal
Thu, Dec 4 - Thu, Dec 11
Multiple Airlines Logo
5:40 am - 8:53 amSAT-PDX
29h 13m1 stop
Multiple Airlines Logo
5:32 pm - 6:59 pmPDX-SAT
23h 27m1 stop
$201Multiple Airlines
Find Deal
Fri, Dec 5 - Mon, Dec 8
Frontier Logo
6:22 pm - 8:04 amSAT-PDX
15h 42m1 stop
Frontier Logo
3:59 pm - 12:20 amPDX-SAT
6h 21m1 stop
$207Frontier
Find Deal
Mon, Nov 24 - Mon, Dec 1
Frontier Logo
6:45 am - 11:43 amSAT-PDX
6h 58m1 stop
Frontier Logo
12:47 pm - 12:17 amPDX-SAT
9h 30m1 stop
$208Frontier
Find Deal
Sun, Dec 21 - Tue, Dec 30
Multiple Airlines Logo
7:55 pm - 8:53 amSAT-PDX
14h 58m2 stops
Multiple Airlines Logo
5:32 pm - 6:59 pmPDX-SAT
23h 27m1 stop
$225Multiple Airlines
Find Deal
Fri, Dec 5 - Mon, Dec 8
Frontier Logo
6:45 am - 11:43 amSAT-PDX
6h 58m1 stop
Frontier Logo
12:47 pm - 12:17 amPDX-SAT
9h 30m1 stop
$238Frontier
Find Deal
Sun, Dec 21 - Tue, Dec 30
Multiple Airlines Logo
6:00 am - 12:42 pmSAT-PDX
8h 42m1 stop
Multiple Airlines Logo
12:47 pm - 12:17 amPDX-SAT
9h 30m1 stop
$250Multiple Airlines
Find Deal
Tue, Dec 16 - Thu, Dec 18
Multiple Airlines Logo
6:45 am - 1:24 pmSAT-PDX
32h 39m2 stops
Multiple Airlines Logo
2:19 pm - 5:35 amPDX-SAT
13h 16m1 stop
$253Multiple Airlines
Find Deal
Mon, Dec 29 - Sun, Jan 4

Delta flights from San Antonio to Portland

Our best Delta deals on San Antonio to Portland flight tickets
Delta
Dec 10
SAT6:25 amSan Antonio
11h 08m
2 stops
PDX3:33 pmPortland
Dec 17
PDX11:35 amPortland
10h 14m
2 stops
SAT11:49 pmSan Antonio
$256
Find similar
Delta
Dec 10
SAT2:40 pmSan Antonio
11h 35m
2 stops
PDX12:15 amPortland
Dec 17
PDX9:10 amPortland
12h 39m
2 stops
SAT11:49 pmSan Antonio
$274
Find similar
Delta
Jan 9
SAT7:45 amSan Antonio
13h 05m
2 stops
PDX6:50 pmPortland
Jan 13
PDX7:37 pmPortland
12h 38m
2 stops
SAT10:15 amSan Antonio
$294
Find similar

United Airlines flights from San Antonio to Portland

Our best United Airlines deals on San Antonio to Portland flight tickets
United Airlines
Jan 9
SAT4:43 pmSan Antonio
6h 29m
1 stop
PDX9:12 pmPortland
Jan 13
PDX8:30 amPortland
10h 51m
2 stops
SAT9:21 pmSan Antonio
$335
Find similar
United Airlines
Dec 20
SAT4:55 pmSan Antonio
8h 03m
1 stop
PDX10:58 pmPortland
Jan 17
PDX5:00 amPortland
10h 33m
2 stops
SAT5:33 pmSan Antonio
$366
Find similar
United Airlines
Nov 27
SAT5:30 amSan Antonio
10h 17m
2 stops
PDX1:47 pmPortland
Dec 3
PDX1:14 pmPortland
7h 45m
2 stops
SAT10:59 pmSan Antonio
$492
Find similar

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 November 13, 2025.
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

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Thu 12/4

7:56 pm-11:56 am

1 stop18h 00m

Portland

Thu 12/11

12:51 pm-7:00 pm

1 stop28h 09m

$130

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Thu 12/4

1:51 pm-9:34 am

1 stop21h 43m

Portland

Thu 12/11

12:51 pm-7:00 pm

1 stop28h 09m

$131

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Thu 12/4

1:51 pm-11:56 am

2 stops24h 05m

Portland

Thu 12/11

12:51 pm-7:00 pm

1 stop28h 09m

$175

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Fri 12/5

5:40 am-8:53 am

1 stop29h 13m

Portland

Mon 12/8

5:32 pm-6:59 pm

1 stop23h 27m

$201

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Mon 11/24

6:22 pm-8:04 am

1 stop15h 42m

Portland

Mon 12/1

3:59 pm-12:20 am

1 stop6h 21m

$207

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Sun 12/21

6:45 am-11:43 am

1 stop6h 58m

Portland

Tue 12/30

12:47 pm-12:17 am

1 stop9h 30m

$208

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Fri 12/5

7:55 pm-8:53 am

2 stops14h 58m

Portland

Mon 12/8

5:32 pm-6:59 pm

1 stop23h 27m

$225

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Sun 12/21

6:45 am-11:43 am

1 stop6h 58m

Portland

Tue 12/30

12:47 pm-12:17 am

1 stop9h 30m

$238

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Tue 12/16

6:00 am-12:42 pm

1 stop8h 42m

Portland

Thu 12/18

12:47 pm-12:17 am

1 stop9h 30m

$250

San AntonioPortland

SAT - PDX

SATPDX

San Antonio

Mon 12/29

6:45 am-1:24 pm

2 stops32h 39m

Portland

Sun 1/4

2:19 pm-5:35 am

1 stop13h 16m

$253

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 $308, 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 $314.

What is the cheapest day to depart on your flight to Portland?

The cheapest day to depart on your flight to Portland is on a Saturday when prices can be found for as low as $366. This is often the case because there is less demand to fly during this day of the week. The most expensive day to fly to Portland is Sunday, with ticket prices averaging around $402.

What is the cheapest time of day to depart on your flight to Portland?

The cheapest time of day to fly to Portland is at noon when flights can be purchased for as low as $366. In the afternoon is when there is more demand to fly to Portland, so prices are often more expensive at around $404 per ticket.

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 $373 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 November 2025, prices for San Antonio to Portland flights are approximately 40% 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

Direct flights

None
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 29m 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 $120Free CancellationRating
5.8
3,113 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $147Free CancellationRating
6.3
8,139 reviews
Search Spirit Airlines flights
DeltaPriceFrom $257Free CancellationRating
7.9
8,007 reviews
Search Delta flights
SouthwestPriceFrom $282Free CancellationRating
8.0
4,236 reviews
Search Southwest flights
American AirlinesPriceFrom $284Free CancellationRating
7.2
11,049 reviews
Search American Airlines flights
United AirlinesPriceFrom $304Free CancellationRating
7.4
9,015 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $325Free CancellationRating
8.0
11,281 reviews
Search Alaska 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
Depoe Bay
Rockaway Beach
Beaverton
Hillsboro
Hood River
Gresham
McMinnville
Longview
The Dalles
Pacific City
Tigard
Manzanita
Tillamook

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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