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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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Find the cheapest flights from San Antonio to Portugal

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:07 pm - 2:50 pm
SAT
-
LIS
17h 43m2 stops
Multiple Airlines Logo
4:45 pm - 8:23 am
LIS
-
SAT
21h 38m2 stops
$453Multiple Airlines
Wed, Feb 4 - Wed, Feb 11
British Airways Logo
3:11 pm - 3:30 pm
SAT
-
LIS
18h 19m2 stops
British Airways Logo
7:15 am - 10:52 pm
LIS
-
SAT
21h 37m2 stops
$458British Airways
Tue, Apr 21 - Tue, Apr 28
United Airlines Logo
12:09 pm - 10:30 am
SAT
-
LIS
16h 21m1 stop
United Airlines Logo
11:25 am - 4:09 pm
LIS
-
SAT
34h 44m2 stops
$462United Airlines
Tue, Apr 21 - Tue, Apr 28
United Airlines Logo
7:00 am - 9:20 am
SAT
-
LIS
21h 20m2 stops
United Airlines Logo
11:20 am - 3:33 pm
LIS
-
SAT
33h 13m3 stops
$464United Airlines
Tue, Mar 10 - Thu, Mar 26
Multiple Airlines Logo
6:25 pm - 5:40 pm
SAT
-
LIS
18h 15m2 stops
Multiple Airlines Logo
6:30 am - 7:10 pm
LIS
-
SAT
17h 40m2 stops
$466Multiple Airlines
Tue, Mar 10 - Thu, Mar 26
British Airways Logo
3:11 pm - 5:45 pm
SAT
-
LIS
20h 34m2 stops
British Airways Logo
11:00 am - 5:37 pm
LIS
-
SAT
36h 37m2 stops
$468British Airways
Sun, Apr 12 - Fri, Apr 24
Lufthansa Logo
8:00 am - 8:10 am
SAT
-
LIS
18h 10m1 stop
Lufthansa Logo
10:15 am - 10:57 pm
LIS
-
SAT
18h 42m2 stops
$476Lufthansa
Wed, Feb 4 - Wed, Feb 11
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 - 10:15 am
SAT
-
LIS
21h 10m1 stop
United Airlines Logo
11:55 am - 8:28 pm
LIS
-
SAT
14h 33m1 stop
$482United Airlines
Thu, Feb 19 - Fri, Feb 27
TAP AIR PORTUGAL Logo
5:10 pm - 11:00 am
SAT
-
TER
36h 50m2 stops
TAP AIR PORTUGAL Logo
12:35 pm - 2:50 pm
TER
-
SAT
31h 15m2 stops
$1,641TAP AIR PORTUGAL
Sun, Feb 1 - Mon, Feb 9

British Airways flights from San Antonio to Portugal

Our best British Airways deals on San Antonio to Portugal flight tickets
British Airways
Apr 21
SAT3:11 pmSan Antonio
18h 19m
2 stops
LIS3:30 pmLisbon Humberto Delgado
Apr 28
LIS7:15 amLisbon Humberto Delgado
21h 37m
2 stops
SAT10:52 pmSan Antonio
$458
British Airways
Apr 12
SAT3:11 pmSan Antonio
20h 34m
2 stops
LIS5:45 pmLisbon Humberto Delgado
Apr 24
LIS11:00 amLisbon Humberto Delgado
36h 37m
2 stops
SAT5:37 pmSan Antonio
$468
British Airways
Mar 10
SAT6:25 pmSan Antonio
18h 15m
2 stops
LIS5:40 pmLisbon Humberto Delgado
Mar 26
LIS7:00 amLisbon Humberto Delgado
21h 07m
2 stops
SAT11:07 pmSan Antonio
$521

Lufthansa flights from San Antonio to Portugal

Our best Lufthansa deals on San Antonio to Portugal flight tickets
Lufthansa
Feb 4
SAT8:00 amSan Antonio
18h 10m
1 stop
LIS8:10 amLisbon Humberto Delgado
Feb 11
LIS10:15 amLisbon Humberto Delgado
18h 42m
2 stops
SAT10:57 pmSan Antonio
$476
Lufthansa
Apr 28
SAT5:30 pmSan Antonio
23h 15m
2 stops
LIS10:45 pmLisbon Humberto Delgado
May 6
LIS12:20 pmLisbon Humberto Delgado
14h 19m
1 stop
SAT8:39 pmSan Antonio
$497
Lufthansa
Apr 28
SAT12:15 pmSan Antonio
21h 45m
2 stops
LIS4:00 pmLisbon Humberto Delgado
May 6
LIS12:20 pmLisbon Humberto Delgado
14h 19m
1 stop
SAT8:39 pmSan Antonio
$510

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 8, 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

Wed 2/4

3:07 pm-2:50 pm

2 stops17h 43m

Lisbon Humberto Delgado

Wed 2/11

4:45 pm-8:23 am

2 stops21h 38m

$453

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Tue 4/21

3:11 pm-3:30 pm

2 stops18h 19m

Lisbon Humberto Delgado

Tue 4/28

7:15 am-10:52 pm

2 stops21h 37m

$458

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Tue 4/21

12:09 pm-10:30 am

1 stop16h 21m

Lisbon Humberto Delgado

Tue 4/28

11:25 am-4:09 pm

2 stops34h 44m

$462

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Tue 3/10

7:00 am-9:20 am

2 stops21h 20m

Lisbon Humberto Delgado

Thu 3/26

11:20 am-3:33 pm

3 stops33h 13m

$464

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Tue 3/10

6:25 pm-5:40 pm

2 stops18h 15m

Lisbon Humberto Delgado

Thu 3/26

6:30 am-7:10 pm

2 stops17h 40m

$466

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Sun 4/12

3:11 pm-5:45 pm

2 stops20h 34m

Lisbon Humberto Delgado

Fri 4/24

11:00 am-5:37 pm

2 stops36h 37m

$468

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Wed 2/4

8:00 am-8:10 am

1 stop18h 10m

Lisbon Humberto Delgado

Wed 2/11

10:15 am-10:57 pm

2 stops18h 42m

$476

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

Thu 2/19

7:05 am-10:15 am

1 stop21h 10m

Lisbon Humberto Delgado

Fri 2/27

11:55 am-8:28 pm

1 stop14h 33m

$482

San AntonioLajes

SAT - TER

SATTER

San Antonio

Sun 2/1

5:10 pm-11:00 am

2 stops36h 50m

Lajes

Mon 2/9

12:35 pm-2:50 pm

2 stops31h 15m

$1,641

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 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
8,025 reviews
Search Delta flights
American AirlinesPriceFrom $615Free CancellationRating
7.2
11,094 reviews
Search American Airlines flights
United AirlinesPriceFrom $655Free CancellationRating
7.4
9,139 reviews
Search United Airlines flights
IberiaPriceFrom $765Free CancellationRating
7.0
3,076 reviews
Search Iberia flights
LufthansaPriceFrom $807Free CancellationRating
6.8
7,692 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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