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Cheap flights from San Antonio to Portugal from $394

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 5/1. 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.
Virgin Atlantic Logo
10:57 am - 8:00 am
SAT
-
LIS
15h 03m
2 stops
Virgin Atlantic Logo
11:15 am - 10:42 pm
LIS
-
SAT
40h 27m
2 stops
$494Virgin Atlantic
Mon, Mar 2 - Wed, Mar 18
United Airlines Logo
12:17 pm - 10:15 am
SAT
-
LIS
15h 58m
1 stop
United Airlines Logo
11:55 am - 8:53 pm
LIS
-
SAT
13h 58m
1 stop
$495United Airlines
Mon, Mar 2 - Wed, Mar 18
United Airlines Logo
12:17 pm - 10:15 am
SAT
-
LIS
15h 58m
1 stop
United Airlines Logo
5:00 am - 10:57 pm
LIS
-
SAT
22h 57m
2 stops
$497United Airlines
Mon, Mar 2 - Mon, Mar 9
United Airlines Logo
5:30 pm - 9:20 am
SAT
-
LIS
33h 50m
2 stops
United Airlines Logo
7:25 am - 10:59 pm
LIS
-
SAT
21h 34m
2 stops
$500United Airlines
Tue, Apr 7 - Tue, Apr 14
United Airlines Logo
7:00 am - 10:15 am
SAT
-
LIS
21h 15m
2 stops
United Airlines Logo
5:00 am - 1:14 pm
LIS
-
SAT
37h 14m
2 stops
$501United Airlines
Mon, Mar 2 - Mon, Mar 9
Delta Logo
1:42 pm - 2:55 pm
SAT
-
LIS
19h 13m
2 stops
Delta Logo
5:00 am - 11:08 pm
LIS
-
SAT
24h 08m
2 stops
$502Delta
Tue, Apr 28 - Wed, May 6
Delta Logo
1:42 pm - 2:55 pm
SAT
-
LIS
19h 13m
2 stops
Delta Logo
5:00 am - 9:30 pm
LIS
-
SAT
22h 30m
2 stops
$503Delta
Tue, Apr 28 - Wed, May 6
Lufthansa Logo
5:30 pm - 10:45 pm
SAT
-
LIS
23h 15m
2 stops
Lufthansa Logo
5:05 am - 10:53 pm
LIS
-
SAT
23h 48m
2 stops
$505Lufthansa
Tue, Apr 14 - Tue, Apr 28
Lufthansa Logo
5:30 pm - 10:45 pm
SAT
-
LIS
23h 15m
2 stops
Lufthansa Logo
6:15 am - 8:42 pm
LIS
-
SAT
20h 27m
2 stops
$507Lufthansa
Tue, Apr 14 - Sun, Apr 26
United Airlines Logo
12:17 pm - 10:15 am
SAT
-
LIS
15h 58m
1 stop
United Airlines Logo
11:55 am - 8:53 pm
LIS
-
SAT
13h 58m
1 stop
$509United Airlines
Mon, Mar 2 - Mon, Mar 9

Iberia flights from San Antonio to Portugal

Our best Iberia deals on San Antonio to Portugal flight tickets
Iberia
Apr 15
SAT1:26 pmSan Antonio
40h 24m
2 stops
LIS11:50 amLisbon Humberto Delgado
Apr 26
LIS8:45 pmLisbon Humberto Delgado
54h 14m
2 stops
SAT8:59 pmSan Antonio
$539
Iberia
May 7
SAT5:45 pmSan Antonio
20h 20m
2 stops
LIS8:05 pmLisbon Humberto Delgado
May 16
LIS8:25 amLisbon Humberto Delgado
20h 27m
2 stops
SAT10:52 pmSan Antonio
$663

American Airlines flights from San Antonio to Portugal

Our best American Airlines deals on San Antonio to Portugal flight tickets
American Airlines
Apr 21
SAT7:12 pmSan Antonio
14h 53m
2 stops
LIS4:05 pmLisbon Humberto Delgado
Apr 28
LIS11:05 amLisbon Humberto Delgado
15h 53m
1 stop
SAT8:58 pmSan Antonio
$682
American Airlines
Apr 7
SAT7:00 amSan Antonio
20h 05m
1 stop
LIS9:05 amLisbon Humberto Delgado
Apr 14
LIS11:05 amLisbon Humberto Delgado
15h 53m
1 stop
SAT8:58 pmSan Antonio
$704

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 February 2, 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

Mon 3/2

10:57 am-8:00 am

2 stops15h 03m

Lisbon Humberto Delgado

Wed 3/18

11:15 am-10:42 pm

2 stops40h 27m

$494

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Mon 3/2

12:17 pm-10:15 am

1 stop15h 58m

Lisbon Humberto Delgado

Wed 3/18

11:55 am-8:53 pm

1 stop13h 58m

$495

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Mon 3/2

12:17 pm-10:15 am

1 stop15h 58m

Lisbon Humberto Delgado

Mon 3/9

5:00 am-10:57 pm

2 stops22h 57m

$497

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Tue 4/7

5:30 pm-9:20 am

2 stops33h 50m

Lisbon Humberto Delgado

Tue 4/14

7:25 am-10:59 pm

2 stops21h 34m

$500

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Mon 3/2

7:00 am-10:15 am

2 stops21h 15m

Lisbon Humberto Delgado

Mon 3/9

5:00 am-1:14 pm

2 stops37h 14m

$501

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Tue 4/28

1:42 pm-2:55 pm

2 stops19h 13m

Lisbon Humberto Delgado

Wed 5/6

5:00 am-11:08 pm

2 stops24h 08m

$502

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Tue 4/28

1:42 pm-2:55 pm

2 stops19h 13m

Lisbon Humberto Delgado

Wed 5/6

5:00 am-9:30 pm

2 stops22h 30m

$503

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Tue 4/14

5:30 pm-10:45 pm

2 stops23h 15m

Lisbon Humberto Delgado

Tue 4/28

5:05 am-10:53 pm

2 stops23h 48m

$505

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Tue 4/14

5:30 pm-10:45 pm

2 stops23h 15m

Lisbon Humberto Delgado

Sun 4/26

6:15 am-8:42 pm

2 stops20h 27m

$507

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Mon 3/2

12:17 pm-10:15 am

1 stop15h 58m

Lisbon Humberto Delgado

Mon 3/9

11:55 am-8:53 pm

1 stop13h 58m

$509

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 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 $955 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 7% 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

14h 05m

Direct flights

None
The fastest flight from San Antonio to Portugal takes 14h 05m
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 $445Free CancellationRating
6.7
7,711 reviews
Search British Airways flights
American AirlinesPriceFrom $522Free CancellationRating
7.2
11,215 reviews
Search American Airlines flights
DeltaPriceFrom $578Free CancellationRating
7.9
8,138 reviews
Search Delta flights
United AirlinesPriceFrom $648Free CancellationRating
7.4
9,232 reviews
Search United Airlines flights
IberiaPriceFrom $765Free CancellationRating
7.0
3,102 reviews
Search Iberia flights
LufthansaPriceFrom $807Free CancellationRating
6.8
7,758 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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