Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from San Antonio to Portugal from $379

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 12/14. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from San Antonio to Portugal

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
12:20 pm - 8:00 amSAT-LIS
13h 40m1 stop
Delta Logo
5:00 am - 10:32 pmLIS-SAT
22h 32m2 stops
$496Delta
Find Deal
Sat, Feb 28 - Mon, Mar 9
Delta Logo
12:25 pm - 3:10 pmSAT-LIS
20h 45m2 stops
Delta Logo
5:00 am - 8:25 pmLIS-SAT
21h 25m2 stops
$499Delta
Find Deal
Wed, Jan 14 - Wed, Jan 21
Delta Logo
5:30 pm - 5:30 pmSAT-LIS
19h 00m2 stops
Delta Logo
5:00 am - 10:32 pmLIS-SAT
22h 32m2 stops
$500Delta
Find Deal
Tue, Mar 10 - Thu, Mar 19
KLM Logo
4:00 pm - 2:35 pmSAT-LIS
16h 35m2 stops
KLM Logo
5:00 am - 9:41 pmLIS-SAT
21h 41m2 stops
$505KLM
Find Deal
Sat, Feb 28 - Tue, Mar 10
Delta Logo
6:30 am - 8:00 amSAT-LIS
19h 30m2 stops
Delta Logo
11:15 am - 12:14 amLIS-SAT
17h 59m2 stops
$510Delta
Find Deal
Thu, Feb 26 - Mon, Mar 9
Delta Logo
12:20 pm - 8:00 amSAT-LIS
13h 40m1 stop
Delta Logo
11:15 am - 12:15 pmLIS-SAT
31h 00m1 stop
$511Delta
Find Deal
Sat, Feb 28 - Sat, Mar 7
Delta Logo
4:00 pm - 3:10 pmSAT-LIS
18h 10m2 stops
Delta Logo
10:00 am - 12:14 amLIS-SAT
19h 14m2 stops
$514Delta
Find Deal
Tue, Mar 10 - Thu, Mar 26
Delta Logo
6:24 pm - 8:00 amSAT-LIS
31h 36m2 stops
Delta Logo
11:15 am - 12:15 pmLIS-SAT
31h 00m1 stop
$515Delta
Find Deal
Fri, Feb 27 - Sat, Mar 7
Delta Logo
10:45 am - 2:35 pmSAT-LIS
22h 50m2 stops
Delta Logo
11:15 am - 12:14 amLIS-SAT
17h 59m2 stops
$520Delta
Find Deal
Wed, Mar 11 - Tue, Mar 17
Delta Logo
5:49 pm - 8:55 amSAT-LIS
33h 06m2 stops
Delta Logo
10:00 am - 10:00 amLIS-SAT
29h 00m2 stops
$521Delta
Find Deal
Sat, Feb 28 - Fri, Mar 13

Delta flights from San Antonio to Portugal

Our best Delta deals on San Antonio to Portugal flight tickets
Delta
Feb 28
SAT12:20 pmSan Antonio
13h 40m
1 stop
LIS8:00 amLisbon Humberto Delgado
Mar 9
LIS5:00 amLisbon Humberto Delgado
22h 32m
2 stops
SAT10:32 pmSan Antonio
$496
Find similar
Delta
Jan 14
SAT12:25 pmSan Antonio
20h 45m
2 stops
LIS3:10 pmLisbon Humberto Delgado
Jan 21
LIS5:00 amLisbon Humberto Delgado
21h 25m
2 stops
SAT8:25 pmSan Antonio
$499
Find similar
Delta
Mar 10
SAT5:30 pmSan Antonio
19h 00m
2 stops
LIS5:30 pmLisbon Humberto Delgado
Mar 19
LIS5:00 amLisbon Humberto Delgado
22h 32m
2 stops
SAT10:32 pmSan Antonio
$500
Find similar

KLM flights from San Antonio to Portugal

Our best KLM deals on San Antonio to Portugal flight tickets
KLM
Feb 28
SAT4:00 pmSan Antonio
16h 35m
2 stops
LIS2:35 pmLisbon Humberto Delgado
Mar 10
LIS5:00 amLisbon Humberto Delgado
21h 41m
2 stops
SAT9:41 pmSan Antonio
$505
Find similar
KLM
Jan 14
SAT12:55 pmSan Antonio
13h 05m
1 stop
LIS8:00 amLisbon Humberto Delgado
Jan 21
LIS5:00 amLisbon Humberto Delgado
18h 22m
2 stops
SAT5:22 pmSan Antonio
$593
Find similar
KLM
Mar 10
SAT12:30 pmSan Antonio
14h 30m
1 stop
LIS8:00 amLisbon Humberto Delgado
Mar 26
LIS10:00 amLisbon Humberto Delgado
30h 10m
1 stop
SAT11:10 amSan Antonio
$612
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 November 23, 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

Sat 2/28

12:20 pm-8:00 am

1 stop13h 40m

Lisbon Humberto Delgado

Mon 3/9

5:00 am-10:32 pm

2 stops22h 32m

$496

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Wed 1/14

12:25 pm-3:10 pm

2 stops20h 45m

Lisbon Humberto Delgado

Wed 1/21

5:00 am-8:25 pm

2 stops21h 25m

$499

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Tue 3/10

5:30 pm-5:30 pm

2 stops19h 00m

Lisbon Humberto Delgado

Thu 3/19

5:00 am-10:32 pm

2 stops22h 32m

$500

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Sat 2/28

4:00 pm-2:35 pm

2 stops16h 35m

Lisbon Humberto Delgado

Tue 3/10

5:00 am-9:41 pm

2 stops21h 41m

$505

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Thu 2/26

6:30 am-8:00 am

2 stops19h 30m

Lisbon Humberto Delgado

Mon 3/9

11:15 am-12:14 am

2 stops17h 59m

$510

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Sat 2/28

12:20 pm-8:00 am

1 stop13h 40m

Lisbon Humberto Delgado

Sat 3/7

11:15 am-12:15 pm

1 stop31h 00m

$511

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Tue 3/10

4:00 pm-3:10 pm

2 stops18h 10m

Lisbon Humberto Delgado

Thu 3/26

10:00 am-12:14 am

2 stops19h 14m

$514

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Fri 2/27

6:24 pm-8:00 am

2 stops31h 36m

Lisbon Humberto Delgado

Sat 3/7

11:15 am-12:15 pm

1 stop31h 00m

$515

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Wed 3/11

10:45 am-2:35 pm

2 stops22h 50m

Lisbon Humberto Delgado

Tue 3/17

11:15 am-12:14 am

2 stops17h 59m

$520

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Sat 2/28

5:49 pm-8:55 am

2 stops33h 06m

Lisbon Humberto Delgado

Fri 3/13

10:00 am-10:00 am

2 stops29h 00m

$521

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 $598, 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 February instead. Flights to Portugal in February, while not as cheap as those in January, still average around $679.

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 $962 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 $913 on momondo.

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

You could potentially save up to 35% 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
British AirwaysPriceFrom $558Free CancellationRating
6.7
7,535 reviews
Search British Airways flights
American AirlinesPriceFrom $607Free CancellationRating
7.2
11,046 reviews
Search American Airlines flights
DeltaPriceFrom $629Free CancellationRating
7.9
7,999 reviews
Search Delta flights
United AirlinesPriceFrom $676Free CancellationRating
7.4
9,033 reviews
Search United Airlines flights
IberiaPriceFrom $765Free CancellationRating
7.0
3,032 reviews
Search Iberia flights
LufthansaPriceFrom $807Free CancellationRating
6.8
7,581 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.

An easier way to manage your Portugal trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 12/23
Tue 12/30
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Portugal

Popular cities in Portugal

Popular flights according to clicks in the last 7 days on momondo
Flights to Lisbonfrom $361
Flights to Portofrom $350
Flights to Funchalfrom $415
Flights to Farofrom $425
Flights to Ponta Delgadafrom $403
Flights to Lajesfrom $506
Flights to Hortafrom $577
Flights to Pico Islandfrom $566
Flights to Porto Santofrom $757
Flights to Velasfrom $566