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Cheap flights from San Antonio to Portugal from $348

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 3/9. 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 Portugal

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
3:11 pm - 5:55 pm
SAT
-
LIS
20h 44m2 stops
British Airways Logo
11:00 am - 11:54 pm
LIS
-
SAT
18h 54m2 stops
$458British Airways
Sun, Apr 12 - Fri, Apr 24
Iberia Logo
1:40 pm - 11:25 pm
SAT
-
LIS
27h 45m2 stops
Iberia Logo
8:45 pm - 8:23 am
LIS
-
SAT
17h 38m2 stops
$477Iberia
Mon, Feb 16 - Mon, Feb 23
United Airlines Logo
7:05 am - 10:30 am
SAT
-
LIS
21h 25m1 stop
United Airlines Logo
11:25 am - 8:40 pm
LIS
-
SAT
39h 15m2 stops
$488United Airlines
Tue, Apr 21 - Tue, Apr 28
United Airlines Logo
7:40 am - 8:20 am
SAT
-
LIS
18h 40m2 stops
United Airlines Logo
11:25 am - 10:53 pm
LIS
-
SAT
41h 28m2 stops
$492United Airlines
Tue, Apr 21 - Tue, Apr 28
Iberia Logo
10:23 am - 7:40 am
SAT
-
LIS
15h 17m2 stops
Iberia Logo
8:20 am - 11:56 pm
LIS
-
SAT
21h 36m2 stops
$494Iberia
Thu, Feb 19 - Fri, Feb 27
United Airlines Logo
7:05 am - 10:15 am
SAT
-
LIS
21h 10m1 stop
United Airlines Logo
5:00 am - 9:15 pm
LIS
-
SAT
22h 15m2 stops
$495United Airlines
Thu, Feb 19 - Fri, Feb 27
United Airlines Logo
7:25 am - 8:10 am
SAT
-
LIS
18h 45m2 stops
United Airlines Logo
10:50 am - 7:09 pm
LIS
-
SAT
38h 19m2 stops
$497United Airlines
Sun, Feb 1 - Sun, Feb 8
United Airlines Logo
7:20 pm - 7:55 am
SAT
-
LIS
30h 35m2 stops
United Airlines Logo
5:00 am - 9:15 pm
LIS
-
SAT
22h 15m2 stops
$499United Airlines
Wed, Feb 18 - Wed, Feb 25
Multiple Airlines Logo
7:00 am - 7:55 am
SAT
-
LIS
42h 55m2 stops
Multiple Airlines Logo
11:55 am - 8:28 pm
LIS
-
SAT
14h 33m1 stop
$502Multiple Airlines
Wed, Feb 18 - Wed, Feb 25
British Airways Logo
7:12 pm - 11:00 pm
SAT
-
LIS
21h 48m2 stops
British Airways Logo
6:40 pm - 4:52 pm
LIS
-
SAT
28h 12m2 stops
$508British Airways
Tue, Apr 28 - Wed, May 6

British Airways flights from San Antonio to Portugal

Our best British Airways deals on San Antonio to Portugal flight tickets
British Airways
Apr 12
SAT3:11 pmSan Antonio
20h 44m
2 stops
LIS5:55 pmLisbon Humberto Delgado
Apr 24
LIS11:00 amLisbon Humberto Delgado
18h 54m
2 stops
SAT11:54 pmSan Antonio
$458
Find similar
British Airways
Apr 28
SAT7:12 pmSan Antonio
21h 48m
2 stops
LIS11:00 pmLisbon Humberto Delgado
May 6
LIS6:40 pmLisbon Humberto Delgado
28h 12m
2 stops
SAT4:52 pmSan Antonio
$508
Find similar
British Airways
Mar 10
SAT6:25 pmSan Antonio
22h 20m
2 stops
LIS9:45 pmLisbon Humberto Delgado
Mar 26
LIS7:00 amLisbon Humberto Delgado
21h 07m
2 stops
SAT11:07 pmSan Antonio
$521
Find similar

Iberia flights from San Antonio to Portugal

Our best Iberia deals on San Antonio to Portugal flight tickets
Iberia
Feb 16
SAT1:40 pmSan Antonio
27h 45m
2 stops
LIS11:25 pmLisbon Humberto Delgado
Feb 23
LIS8:45 pmLisbon Humberto Delgado
17h 38m
2 stops
SAT8:23 amSan Antonio
$477
Find similar
Iberia
Feb 19
SAT10:23 amSan Antonio
15h 17m
2 stops
LIS7:40 amLisbon Humberto Delgado
Feb 27
LIS8:20 amLisbon Humberto Delgado
21h 36m
2 stops
SAT11:56 pmSan Antonio
$494
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 January 6, 2026.
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

Sun 4/12

3:11 pm-5:55 pm

2 stops20h 44m

Lisbon Humberto Delgado

Fri 4/24

11:00 am-11:54 pm

2 stops18h 54m

$458

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Mon 2/16

1:40 pm-11:25 pm

2 stops27h 45m

Lisbon Humberto Delgado

Mon 2/23

8:45 pm-8:23 am

2 stops17h 38m

$477

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Tue 4/21

7:05 am-10:30 am

1 stop21h 25m

Lisbon Humberto Delgado

Tue 4/28

11:25 am-8:40 pm

2 stops39h 15m

$488

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Tue 4/21

7:40 am-8:20 am

2 stops18h 40m

Lisbon Humberto Delgado

Tue 4/28

11:25 am-10:53 pm

2 stops41h 28m

$492

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Thu 2/19

10:23 am-7:40 am

2 stops15h 17m

Lisbon Humberto Delgado

Fri 2/27

8:20 am-11:56 pm

2 stops21h 36m

$494

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Thu 2/19

7:05 am-10:15 am

1 stop21h 10m

Lisbon Humberto Delgado

Fri 2/27

5:00 am-9:15 pm

2 stops22h 15m

$495

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Sun 2/1

7:25 am-8:10 am

2 stops18h 45m

Lisbon Humberto Delgado

Sun 2/8

10:50 am-7:09 pm

2 stops38h 19m

$497

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Wed 2/18

7:20 pm-7:55 am

2 stops30h 35m

Lisbon Humberto Delgado

Wed 2/25

5:00 am-9:15 pm

2 stops22h 15m

$499

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Wed 2/18

7:00 am-7:55 am

2 stops42h 55m

Lisbon Humberto Delgado

Wed 2/25

11:55 am-8:28 pm

1 stop14h 33m

$502

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Tue 4/28

7:12 pm-11:00 pm

2 stops21h 48m

Lisbon Humberto Delgado

Wed 5/6

6:40 pm-4:52 pm

2 stops28h 12m

$508

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 18 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 January. Flight prices, which tend to average around $513, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to Portugal from San Antonio during November instead. Flights to Portugal in November, while not as cheap as those in January, still average around $720.

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 $959 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 $565 on momondo.

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

You could potentially save up to 37% 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

Fastest flight time

13h 50m

Direct flights

None
The fastest flight from San Antonio to Portugal takes 13h 50m
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
British AirwaysPriceFrom $558Free CancellationRating
6.7
7,657 reviews
Search British Airways flights
DeltaPriceFrom $581Free CancellationRating
7.9
8,017 reviews
Search Delta flights
American AirlinesPriceFrom $615Free CancellationRating
7.2
11,083 reviews
Search American Airlines flights
United AirlinesPriceFrom $655Free CancellationRating
7.4
9,132 reviews
Search United Airlines flights
IberiaPriceFrom $765Free CancellationRating
7.0
3,073 reviews
Search Iberia flights
LufthansaPriceFrom $807Free CancellationRating
6.8
7,683 reviews
Search Lufthansa 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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