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Cheap flights from San Antonio to Portugal from $363

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 Portugal 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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Find the cheapest flights from San Antonio to Portugal

Cheap round-trip flights

Air Canada Logo
6:40 am - 8:55 amSAT-LIS
20h 15m2 stops
Air Canada Logo
11:20 am - 5:33 pmLIS-SAT
36h 13m2 stops
$559Air Canada
Find Deal
Tue, Dec 30 - Fri, Jan 30
United Airlines Logo
7:30 pm - 9:20 amSAT-LIS
31h 50m2 stops
United Airlines Logo
5:00 am - 8:44 pmLIS-SAT
21h 44m2 stops
$575United Airlines
Find Deal
Tue, Jan 6 - Tue, Jan 27
United Airlines Logo
12:24 pm - 8:10 amSAT-LIS
14h 46m3 stops
United Airlines Logo
11:55 am - 10:48 amLIS-SAT
27h 53m2 stops
$580United Airlines
Find Deal
Tue, Mar 10 - Thu, Mar 26
Finnair Logo
2:36 pm - 3:25 pmSAT-LIS
18h 49m2 stops
Finnair Logo
4:10 pm - 5:50 pmLIS-SAT
31h 40m2 stops
$585Finnair
Find Deal
Tue, Jan 6 - Wed, Jan 28
Finnair Logo
2:36 pm - 3:25 pmSAT-LIS
18h 49m2 stops
Finnair Logo
4:10 pm - 5:50 pmLIS-SAT
31h 40m2 stops
$586Finnair
Find Deal
Tue, Jan 6 - Wed, Jan 28
Multiple Airlines Logo
7:40 am - 8:55 amSAT-LIS
19h 15m3 stops
Multiple Airlines Logo
11:20 am - 11:13 pmLIS-SAT
17h 53m2 stops
$588Multiple Airlines
Find Deal
Tue, Dec 30 - Fri, Jan 30
Delta Logo
12:10 pm - 8:00 amSAT-LIS
13h 50m1 stop
Delta Logo
5:30 am - 10:19 pmLIS-SAT
22h 49m2 stops
$596Delta
Find Deal
Mon, Jan 12 - Mon, Jan 19
Delta Logo
6:30 am - 8:00 amSAT-LIS
19h 30m2 stops
Delta Logo
5:30 am - 10:19 pmLIS-SAT
22h 49m2 stops
$601Delta
Find Deal
Mon, Jan 12 - Mon, Jan 19
Iberia Logo
1:32 pm - 6:05 pmSAT-LIS
23h 33m2 stops
Iberia Logo
6:30 am - 10:38 pmLIS-SAT
22h 08m2 stops
$677Iberia
Find Deal
Fri, Oct 31 - Fri, Nov 7
Multiple Airlines Logo
2:32 pm - 3:25 pmSAT-LIS
19h 53m2 stops
Multiple Airlines Logo
10:40 am - 10:44 pmLIS-SAT
18h 04m2 stops
$713Multiple Airlines
Find Deal
Sat, Nov 1 - Sat, Nov 8

Air Canada flights from San Antonio to Portugal

Our best Air Canada deals on San Antonio to Portugal flight tickets
Air Canada
Dec 30
SAT6:40 amSan Antonio
20h 15m
2 stops
LIS8:55 amLisbon Humberto Delgado
Jan 30
LIS11:20 amLisbon Humberto Delgado
36h 13m
2 stops
SAT5:33 pmSan Antonio
$559
Find similar
Air Canada
Mar 10
SAT10:00 amSan Antonio
18h 20m
3 stops
LIS9:20 amLisbon Humberto Delgado
Mar 26
LIS10:55 amLisbon Humberto Delgado
26h 53m
3 stops
SAT8:48 amSan Antonio
$780
Find similar
Air Canada
Oct 6
SAT5:30 amSan Antonio
21h 50m
2 stops
LIS9:20 amLisbon Humberto Delgado
Oct 14
LIS11:25 amLisbon Humberto Delgado
34h 08m
2 stops
SAT3:33 pmSan Antonio
$842
Find similar

United Airlines flights from San Antonio to Portugal

Our best United Airlines deals on San Antonio to Portugal flight tickets
United Airlines
Jan 6
SAT7:30 pmSan Antonio
31h 50m
2 stops
LIS9:20 amLisbon Humberto Delgado
Jan 27
LIS5:00 amLisbon Humberto Delgado
21h 44m
2 stops
SAT8:44 pmSan Antonio
$575
Find similar
United Airlines
Mar 10
SAT12:24 pmSan Antonio
14h 46m
3 stops
LIS8:10 amLisbon Humberto Delgado
Mar 26
LIS11:55 amLisbon Humberto Delgado
27h 53m
2 stops
SAT10:48 amSan Antonio
$580
Find similar
United Airlines
Jan 12
SAT12:15 pmSan Antonio
13h 55m
2 stops
LIS8:10 amLisbon Humberto Delgado
Jan 19
LIS11:20 amLisbon Humberto Delgado
38h 21m
2 stops
SAT7:41 pmSan Antonio
$613
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Antonio to Portugal 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 September 17, 2025.
Use the filters below to find and compare flights from San Antonio to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Tue 12/30

6:40 am-8:55 am

2 stops20h 15m

Lisbon Humberto Delgado

Fri 1/30

11:20 am-5:33 pm

2 stops36h 13m

$559

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Tue 1/6

7:30 pm-9:20 am

2 stops31h 50m

Lisbon Humberto Delgado

Tue 1/27

5:00 am-8:44 pm

2 stops21h 44m

$575

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Tue 3/10

12:24 pm-8:10 am

3 stops14h 46m

Lisbon Humberto Delgado

Thu 3/26

11:55 am-10:48 am

2 stops27h 53m

$580

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Tue 1/6

2:36 pm-3:25 pm

2 stops18h 49m

Lisbon Humberto Delgado

Wed 1/28

4:10 pm-5:50 pm

2 stops31h 40m

$585

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Tue 1/6

2:36 pm-3:25 pm

2 stops18h 49m

Lisbon Humberto Delgado

Wed 1/28

4:10 pm-5:50 pm

2 stops31h 40m

$586

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Tue 12/30

7:40 am-8:55 am

3 stops19h 15m

Lisbon Humberto Delgado

Fri 1/30

11:20 am-11:13 pm

2 stops17h 53m

$588

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Mon 1/12

12:10 pm-8:00 am

1 stop13h 50m

Lisbon Humberto Delgado

Mon 1/19

5:30 am-10:19 pm

2 stops22h 49m

$596

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Mon 1/12

6:30 am-8:00 am

2 stops19h 30m

Lisbon Humberto Delgado

Mon 1/19

5:30 am-10:19 pm

2 stops22h 49m

$601

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Fri 10/31

1:32 pm-6:05 pm

2 stops23h 33m

Lisbon Humberto Delgado

Fri 11/7

6:30 am-10:38 pm

2 stops22h 08m

$677

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Sat 11/1

2:32 pm-3:25 pm

2 stops19h 53m

Lisbon Humberto Delgado

Sat 11/8

10:40 am-10:44 pm

2 stops18h 04m

$713

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 resultsSorted by cheapest first
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See travel insights to Portugal from

How to get the cheapest flight ticket from San Antonio to Portugal

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 Portugal?

The cheapest month to fly to Portugal from San Antonio is in March. Flight prices, which tend to average around $771, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of March, then book flights to Portugal from San Antonio during February instead. Flights to Portugal in February, while not as cheap as those in March, still average around $777.

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

According to our data, Thursday is the cheapest day to fly to Portugal from San Antonio. The lowest ticket price found for a Thursday departure recently was $939. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Portugal is Friday, with ticket prices averaging around $1,226.

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

Our most recent data shows that the best time of day to fly to Portugal is in the evening. Flights from San Antonio to Portugal during this time can be as low as $822. In the morning is when there is more demand to fly to Portugal, so prices are often more expensive at around $1,206 per ticket.

How far in advance should I book a flight to Portugal?

You are more likely to see cheaper flights to Portugal from San Antonio when booking weeks ahead of your departure date. In general, you can expect to find flights to Portugal for around $1,017 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portugal from San Antonio for as low as $745 on momondo.

Can stopping save me money on San Antonio to Portugal flights?

You could potentially save up to 32% on your flight if you consider stops on a San Antonio to Portugal flight.

Cheap San Antonio to Portugal flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Antonio to Portugal

Direct flights

None
There are no direct flights from San Antonio to Portugal. There are no popular flight routes from San Antonio to Portugal.
Search flight deals

  • When did momondo last update prices for flights from San Antonio Airport to Portugal?

    Prices for flights from San Antonio Airport to Portugal refresh daily.

  • How many operators does momondo search for flights from San Antonio Airport to Portugal?

  • How old do you have to be to fly from San Antonio Airport to Portugal?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from San Antonio Airport to Portugal.

  • What documentation or ID do you need to fly to Portugal?

    The travel and health documents you'll need for your trip to Portugal may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Portugal. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from San Antonio to Portugal

Compare and see reviews for airlines that fly from San Antonio to Portugal with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $607Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $635Free CancellationRating
7.9
7,961 reviews
Search Delta flights
United AirlinesPriceFrom $679Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights
IberiaPriceFrom $765Free CancellationRating
7.0
2,925 reviews
Search Iberia flights

Why use momondo?

Why should I use momondo to find a flight deal from San Antonio to Portugal?

It is quick and easy to find San Antonio to Portugal flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Portugal that suits you.

Can I find flights from San Antonio to Portugal with flexible booking policies on momondo?

Flights from San Antonio to Portugal with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from San Antonio to Portugal?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from San Antonio to Portugal.

I’m not ready to book a flight from San Antonio to Portugal right now. Can momondo alert me if prices change?

Yes. momondo can track prices for San Antonio to Portugal flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Find better results for your trip to Portugal

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