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Cheap flights from San Antonio to Portugal from $371

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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Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
3:11 pm - 3:35 pm
SAT
-
LIS
18h 24m
2 stops
British Airways Logo
11:00 am - 11:54 pm
LIS
-
SAT
18h 54m
2 stops
$457British Airways
mar., abr. 28 - mié., may. 6
Iberia Logo
5:45 pm - 4:05 pm
SAT
-
LIS
16h 20m
2 stops
Iberia Logo
6:35 am - 10:52 pm
LIS
-
SAT
22h 17m
2 stops
$469Iberia
mar., abr. 21 - mar., abr. 28
American Airlines Logo
5:36 pm - 2:55 pm
SAT
-
LIS
16h 19m
2 stops
American Airlines Logo
7:05 am - 8:50 pm
LIS
-
SAT
18h 45m
2 stops
$472American Airlines
lun., mar. 9 - mié., mar. 18
American Airlines Logo
5:36 pm - 2:55 pm
SAT
-
LIS
16h 19m
2 stops
American Airlines Logo
11:05 am - 11:59 pm
LIS
-
SAT
17h 54m
2 stops
$483American Airlines
lun., mar. 9 - mié., mar. 18
United Airlines Logo
12:17 pm - 10:15 am
SAT
-
LIS
15h 58m
1 stop
United Airlines Logo
11:55 am - 8:43 am
LIS
-
SAT
26h 48m
2 stops
$487United Airlines
mié., feb. 25 - dom., mar. 1
British Airways Logo
7:12 pm - 11:00 pm
SAT
-
LIS
21h 48m
2 stops
British Airways Logo
4:25 pm - 5:37 pm
LIS
-
SAT
31h 12m
2 stops
$491British Airways
mar., abr. 28 - mié., may. 6
United Airlines Logo
7:15 am - 10:30 am
SAT
-
LIS
21h 15m
1 stop
United Airlines Logo
5:05 am - 10:53 pm
LIS
-
SAT
23h 48m
2 stops
$495United Airlines
mar., abr. 21 - mar., abr. 28
Lufthansa Logo
5:30 pm - 10:45 pm
SAT
-
LIS
23h 15m
2 stops
Lufthansa Logo
12:20 pm - 8:35 pm
LIS
-
SAT
14h 15m
1 stop
$499Lufthansa
mar., abr. 28 - mié., may. 6
Lufthansa Logo
7:00 am - 8:20 am
SAT
-
LIS
19h 20m
1 stop
Lufthansa Logo
12:20 pm - 8:35 pm
LIS
-
SAT
14h 15m
1 stop
$501Lufthansa
mar., abr. 28 - mié., may. 6
TAP AIR PORTUGAL Logo
1:36 pm - 11:00 am
SAT
-
TER
40h 24m
2 stops
TAP AIR PORTUGAL Logo
6:40 am - 11:56 pm
TER
-
SAT
22h 16m
2 stops
$1,734TAP AIR PORTUGAL
vie., feb. 20 - vie., feb. 27

American Airlines flights from San Antonio to Portugal

Our best American Airlines deals on San Antonio to Portugal flight tickets
American Airlines
Mar 9
SAT5:36 pmSan Antonio
16h 19m
2 stops
LIS2:55 pmLisbon Humberto Delgado
Mar 18
LIS7:05 amLisbon Humberto Delgado
18h 45m
2 stops
SAT8:50 pmSan Antonio
$472
American Airlines
Mar 9
SAT5:36 pmSan Antonio
16h 19m
2 stops
LIS2:55 pmLisbon Humberto Delgado
Mar 18
LIS11:05 amLisbon Humberto Delgado
17h 54m
2 stops
SAT11:59 pmSan Antonio
$483
American Airlines
Apr 21
SAT7:00 amSan Antonio
20h 05m
1 stop
LIS9:05 amLisbon Humberto Delgado
Apr 28
LIS11:05 amLisbon Humberto Delgado
15h 53m
1 stop
SAT8:58 pmSan Antonio
$763

Delta flights from San Antonio to Portugal

Our best Delta deals on San Antonio to Portugal flight tickets
Delta
Mar 9
SAT12:22 pmSan Antonio
14h 38m
1 stop
LIS8:00 amLisbon Humberto Delgado
Mar 18
LIS5:00 amLisbon Humberto Delgado
20h 30m
2 stops
SAT8:30 pmSan Antonio
$583
Delta
Mar 10
SAT12:22 pmSan Antonio
14h 38m
1 stop
LIS8:00 amLisbon Humberto Delgado
Mar 26
LIS5:00 amLisbon Humberto Delgado
24h 38m
2 stops
SAT12:38 amSan Antonio
$745

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 enero 21, 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

mar. 4/28

3:11 pm-3:35 pm

2 stops18h 24m

Lisbon Humberto Delgado

mié. 5/6

11:00 am-11:54 pm

2 stops18h 54m

$457

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

mar. 4/21

5:45 pm-4:05 pm

2 stops16h 20m

Lisbon Humberto Delgado

mar. 4/28

6:35 am-10:52 pm

2 stops22h 17m

$469

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

lun. 3/9

5:36 pm-2:55 pm

2 stops16h 19m

Lisbon Humberto Delgado

mié. 3/18

7:05 am-8:50 pm

2 stops18h 45m

$472

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

lun. 3/9

5:36 pm-2:55 pm

2 stops16h 19m

Lisbon Humberto Delgado

mié. 3/18

11:05 am-11:59 pm

2 stops17h 54m

$483

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

mié. 2/25

12:17 pm-10:15 am

1 stop15h 58m

Lisbon Humberto Delgado

dom. 3/1

11:55 am-8:43 am

2 stops26h 48m

$487

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

mar. 4/28

7:12 pm-11:00 pm

2 stops21h 48m

Lisbon Humberto Delgado

mié. 5/6

4:25 pm-5:37 pm

2 stops31h 12m

$491

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

mar. 4/21

7:15 am-10:30 am

1 stop21h 15m

Lisbon Humberto Delgado

mar. 4/28

5:05 am-10:53 pm

2 stops23h 48m

$495

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

mar. 4/28

5:30 pm-10:45 pm

2 stops23h 15m

Lisbon Humberto Delgado

mié. 5/6

12:20 pm-8:35 pm

1 stop14h 15m

$499

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

mar. 4/28

7:00 am-8:20 am

1 stop19h 20m

Lisbon Humberto Delgado

mié. 5/6

12:20 pm-8:35 pm

1 stop14h 15m

$501

San AntonioLajes

SAT - TER

SATTER

San Antonio

vie. 2/20

1:36 pm-11:00 am

2 stops40h 24m

Lajes

vie. 2/27

6:40 am-11:56 pm

2 stops22h 16m

$1,734

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 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 $954 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 $417 on momondo.

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

You could potentially save up to 46% 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 25m

Direct flights

None
The fastest flight from San Antonio to Portugal takes 13h 25m
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
7,689 reviews
Search British Airways flights
DeltaPriceFrom $578Free CancellationRating
7.9
8,089 reviews
Search Delta flights
American AirlinesPriceFrom $615Free CancellationRating
7.2
11,174 reviews
Search American Airlines flights
United AirlinesPriceFrom $648Free CancellationRating
7.4
9,191 reviews
Search United Airlines flights
IberiaPriceFrom $765Free CancellationRating
7.0
3,094 reviews
Search Iberia flights
LufthansaPriceFrom $807Free CancellationRating
6.8
7,738 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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1 adult
vie. 2/20
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