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Portugal

$306+ Cheap flights from San Antonio (SAT) to Portugal

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/3. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — LIS
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
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Cheap flight deals from San Antonio to Portugal

Keep the following information in mind while searching for San Antonio to Portugal flight deals. Data was last updated October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$487
(Delta)

One-way from

$306
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$927
Provider with most accurate pricing for San Antonio-Lisbon Humberto Delgado flight deals.
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Provider most trusted by Cheapflights users for San Antonio-Lisbon Humberto Delgado flights.
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From San Antonio to Portugal
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One-way flight from San Antonio to Portugal
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Highest demand for flights based on searches. 27% potential increase in price ($375 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($46 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from San Antonio to Portugal

Cheapest flights from San Antonio to Portugal
Explore the most affordable flight options available from San Antonio to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This Delta deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/285:15 amSAT - LIS
2 stops20h 45mDelta
Thu 12/115:00 amLIS - SAT
2 stops25h 34mDelta
Deal found 10/30$487
This United Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/27:00 amSAT - LIS
2 stops20h 20mUnited Airlines
Mon 12/85:00 amLIS - SAT
2 stops48h 00mUnited Airlines
Deal found 10/28$581
This Delta deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/102:15 pmSAT - LIS
1 stop11h 45mDelta
Sun 12/2110:00 amLIS - SAT
2 stops18h 49mDelta
Deal found 10/29$611
This United deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2812:49 pmSAT - LIS
1 stop13h 21mMultiple Airlines
Thu 12/1110:55 amLIS - SAT
2 stops35h 42mMultiple Airlines
Deal found 10/30$615
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2612:21 pmSAT - LIS
1 stop13h 49mUnited Airlines
Wed 12/311:55 amLIS - SAT
1 stop14h 20mUnited Airlines
Deal found 10/29$616
This United Airlines deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/107:20 amSAT - LIS
1 stop20h 55mUnited Airlines
Sun 12/2111:55 amLIS - SAT
1 stop14h 29mUnited Airlines
Deal found 10/29$625
This Mytrip deal was found by Cheapflights users on 10/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/267:05 amSAT - LIS
2 stops19h 50mMultiple Airlines
Wed 12/35:00 amLIS - SAT
2 stops21h 53mMultiple Airlines
Deal found 10/29$659
This Booking.com deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/147:20 amSAT - LIS
2 stops44h 00mAir Canada
Sun 12/2110:50 amLIS - SAT
2 stops40h 36mAir Canada
Deal found 10/30$724
This United Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/147:00 amSAT - LIS
2 stops19h 10mUnited Airlines
Sun 12/2111:55 amLIS - SAT
1 stop14h 29mUnited Airlines
Deal found 10/30$725
This United Airlines deal was found by Cheapflights users on 10/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/219:45 amSAT - LIS
2 stops18h 30mUnited Airlines
Sat 11/2911:55 amLIS - SAT
2 stops26h 53mUnited Airlines
Deal found 10/30$735

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated October 30, 2025.
Use the filters below to find and compare flights from San Antonio to Portugal that are best for you.

Fly from

San Antonio

Fly to

Portugal

Route

Depart

Return

Price

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Fri 11/28

12:15 pm-9:00 am

1 stop14h 45m

Lisbon Humberto Delgado

Thu 12/11

11:25 am-12:34 am

2 stops19h 09m

$487

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Fri 11/28

5:15 am-8:00 am

2 stops20h 45m

Lisbon Humberto Delgado

Thu 12/11

5:00 am-12:34 am

2 stops25h 34m

$487

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Mon 3/9

4:25 pm-3:10 pm

2 stops17h 45m

Lisbon Humberto Delgado

Thu 3/19

5:00 am-10:32 pm

2 stops22h 32m

$569

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Tue 3/10

10:00 am-10:15 am

2 stops19h 15m

Lisbon Humberto Delgado

Thu 3/26

11:55 am-8:53 am

2 stops25h 58m

$580

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Tue 12/2

7:20 am-10:15 am

1 stop20h 55m

Lisbon Humberto Delgado

Mon 12/8

5:00 am-11:00 pm

2 stops48h 00m

$581

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Wed 11/26

11:40 am-1:20 pm

2 stops19h 40m

Lisbon Humberto Delgado

Wed 12/3

11:55 am-8:15 pm

1 stop14h 20m

$581

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Wed 12/10

6:25 am-8:00 am

2 stops19h 35m

Lisbon Humberto Delgado

Sun 12/21

10:00 am-10:49 pm

2 stops18h 49m

$611

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Wed 12/10

2:15 pm-8:00 am

1 stop11h 45m

Lisbon Humberto Delgado

Sun 12/21

10:00 am-10:49 pm

2 stops18h 49m

$611

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Tue 3/3

6:00 am-10:55 pm

3 stops58h 55m

$306

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Wed 11/26

8:33 pm-8:50 pm

3 stops42h 17m

$320

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 18 results
1
2

Best time to book a flight from San Antonio to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal from San Antonio with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Antonio to Portugal

What is the cheapest month to book a flight from San Antonio to Portugal?

Currently, March is the cheapest month in which you can book a flight from San Antonio to Portugal (average of $492). Flying from San Antonio to Portugal in June is currently the most expensive (average of $787). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SAT to PT?

Find hourly flight availability from San Antonio to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

It’s typically best to fly out from San Antonio to Portugal in the evening. Doing so could potentially save you 33% on the flight price compared to flying in the morning, which is usually more expensive.

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portugal. Reviews last updated October 30, 2025.
Read reviews from past customers who have flown Delta, United Airlines, and American Airlines from San Antonio to Portugal. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,998 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,998 reviews
Delta
7.9
Good
7,998 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,996 reviews
Delta
7.9
Good
7,998 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,034 reviews
Delta
7.9
Good
7,998 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Iberia
7.0
Good
3,004 reviews
Delta
7.9
Good
7,998 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
British Airways
6.7
Okay
7,488 reviews
Delta
7.9
Good
7,998 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

7.9

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Related info for your journey

Find useful and relevant information for your journey from San Antonio to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from San Antonio to Portugal?

    San Antonio (SAT) is the airport you will fly out of if you book a flight from San Antonio to Portugal. It is only a 7.6 mi journey to San Antonio (SAT) from San Antonio’s city center.

  • How long is the flight from San Antonio to Portugal?

    A quick flight from San Antonio to Portugal can take about 14h 45m. KLM provides one of the quickest options available for as low as $487. Airlines will cover a distance of 4940 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from San Antonio to Portugal that include hotel bookings?

    Yes. In addition to deals on San Antonio to Portugal flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from San Antonio to Portugal?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Antonio to Portugal.

  • Can I find deals for business class flights from San Antonio to Portugal?

    Yes. Cheapflights offers flight deals from San Antonio to Portugal by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Antonio to Portugal?

    Currently, March is the cheapest month in which you can book a flight from San Antonio to Portugal (average of $492). Flying from San Antonio to Portugal in June is currently the most expensive (average of $787). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Top 6 airlines flying from San Antonio to Portugal

Discover the top 6 airlines that operate flights from San Antonio to Portugal. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$558Average$850FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$607Average$1,023FlexibilityNo cancel feeOn-time71%
DeltaCheapest$629Average$933FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$676Average$1,080FlexibilityNo cancel feeOn-time69%
IberiaCheapest$765Average$802FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$807Average$946FlexibilityNo cancel feeOn-time76%

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