Portugal

$486+ 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 7/4. Fares are subject to change and may not be available on all flights or dates of travel.
SAT — LIS
Jul 10 — Jul 171
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Cheap 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 June 10, 2026.

This United Airlines deal was found by Cheapflights users on 6/7. 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.
Mon 11/307:30 am
SAT
-
LIS
1 stop20h 45m
United Airlines
Wed 12/911:20 am
LIS
-
SAT
2 stops30h 50m
United Airlines
Deal found 6/7$746
This United Airlines deal was found by Cheapflights users on 6/7. 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.
Mon 12/712:10 pm
SAT
-
LIS
1 stop16h 05m
United Airlines
Thu 12/101:00 pm
LIS
-
SAT
2 stops32h 38m
United Airlines
Deal found 6/7$751
This Air Canada deal was found by Cheapflights users on 6/9. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/65:00 pm
SAT
-
LIS
2 stops34h 50m
Air Canada
Thu 12/101:00 pm
LIS
-
SAT
2 stops32h 38m
Air Canada
Deal found 6/9$753
This Air Canada deal was found by Cheapflights users on 6/8. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/76:40 am
SAT
-
LIS
2 stops21h 10m
Air Canada
Thu 12/101:00 pm
LIS
-
SAT
2 stops32h 38m
Air Canada
Deal found 6/8$754
This United Airlines deal was found by Cheapflights users on 6/9. 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 12/612:50 pm
SAT
-
LIS
1 stop13h 20m
United Airlines
Thu 12/1011:55 am
LIS
-
SAT
1 stop14h 11m
United Airlines
Deal found 6/9$765
This United Airlines deal was found by Cheapflights users on 6/8. 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.
Mon 11/307:30 am
SAT
-
LIS
1 stop20h 45m
United Airlines
Mon 12/712:25 pm
LIS
-
SAT
2 stops40h 43m
United Airlines
Deal found 6/8$774
This Expedia deal was found by Cheapflights users on 6/8. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/3012:55 pm
SAT
-
LIS
2 stops36h 45m
Iberia
Mon 12/78:45 pm
LIS
-
SAT
2 stops28h 55m
Iberia
Deal found 6/8$783
This Orbitz deal was found by Cheapflights users on 6/8. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/62:10 pm
SAT
-
LIS
2 stops19h 55m
Scandinavian Airlines
Sun 11/154:55 pm
LIS
-
SAT
2 stops35h 32m
Scandinavian Airlines
Deal found 6/8$789
This Delta deal was found by Cheapflights users on 6/5. 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 12/1612:10 pm
SAT
-
LIS
1 stop13h 50m
Delta
Tue 12/225:00 am
LIS
-
SAT
2 stops22h 32m
Delta
Deal found 6/5$802
This United Airlines deal was found by Cheapflights users on 6/5. 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 9/26:00 am
SAT
-
TER
2 stops25h 55m
United Airlines
Wed 9/97:15 am
TER
-
SAT
2 stops18h 23m
United Airlines
Deal found 6/5$2,471
This United Airlines deal was found by Cheapflights users on 6/6. 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 7/211:35 pm
SAT
-
TER
2 stops18h 15m
United Airlines
Tue 7/287:05 am
TER
-
SAT
2 stops18h 17m
United Airlines
Deal found 6/6$2,765
This United Airlines deal was found by Cheapflights users on 6/7. 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 7/54:01 pm
SAT
-
TER
3 stops39h 49m
United Airlines
Sat 7/117:05 am
TER
-
SAT
2 stops32h 49m
United Airlines
Deal found 6/7$6,487

Find 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 June 10, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$746
(United Airlines)

One-way from

$486
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$1,348
Provider with most accurate pricing for San Antonio-Lisbon Humberto Delgado flight deals.
Provider most trusted by Cheapflights users for San Antonio-Lisbon Humberto Delgado flights.
From San Antonio to Portugal
One-way flight from San Antonio to Portugal
Highest demand for flights based on searches. 27% potential increase in price ($354 potential increase over avg. RT price).
Cheapest flight prices on average. 7% potential price decrease ($68 potential savings vs. average RT price).
Average for round-trip flights in June 2026

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 June 10, 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

Cheapest round-trip

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Sun 12/6

7:00 am-8:10 am

1 stop19h 10m

Lisbon Humberto Delgado

Thu 12/10

1:00 pm-3:38 pm

2 stops32h 38m

$750

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Mon 12/7

12:10 pm-10:15 am

1 stop16h 05m

Lisbon Humberto Delgado

Thu 12/10

1:00 pm-3:38 pm

2 stops32h 38m

$750

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Sun 11/1

6:30 am-8:00 am

2 stops19h 30m

Lisbon Humberto Delgado

Sun 11/8

5:30 am-9:32 pm

2 stops22h 02m

$816
Quickest round-trip

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Mon 8/3

1:20 pm-10:45 am

1 stop15h 25m

Lisbon Humberto Delgado

Wed 8/19

5:00 am-6:46 pm

2 stops19h 46m

$894

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Mon 8/17

12:10 pm-10:30 am

1 stop16h 20m

Lisbon Humberto Delgado

Fri 8/28

11:25 am-11:52 am

2 stops30h 27m

$899

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Wed 8/19

6:30 am-10:30 am

2 stops22h 00m

Lisbon Humberto Delgado

Wed 8/26

11:25 am-10:51 pm

2 stops41h 26m

$904

San AntonioLisbon

SAT - LIS

SATLIS

San Antonio

Wed 7/15

2:26 pm-2:55 pm

2 stops18h 29m

Lisbon Humberto Delgado

Wed 7/29

5:00 am-12:20 am

2 stops25h 20m

$951

San AntonioLajes

SAT - TER

SATTER

San Antonio

Wed 9/2

6:00 am-12:55 pm

2 stops25h 55m

Lajes

Wed 9/9

7:15 am-8:38 pm

2 stops18h 23m

$2,471

San AntonioLajes

SAT - TER

SATTER

San Antonio

Tue 7/21

1:35 pm-12:50 pm

2 stops18h 15m

Lajes

Tue 7/28

7:05 am-8:22 pm

2 stops18h 17m

$2,765

San AntonioLajes

SAT - TER

SATTER

San Antonio

Sun 7/5

4:01 pm-12:50 pm

3 stops39h 49m

Lajes

Sat 7/11

7:05 am-10:54 am

2 stops32h 49m

$6,487

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/8

Showing 1-10 of 22 resultsSorted by cheapest first
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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, April is the cheapest month in which you can book a flight from San Antonio to Portugal (average of $355). Flying from San Antonio to Portugal in June is currently the most expensive (average of $906). 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.

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 June 10, 2026.
Read reviews from past customers who have flown Delta,United Airlines, andAmerican 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.

Overall

7.9

Crew

8.5

Entertainment

7.8

Comfort

7.8

Food

7.2

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Overall

7.9

Crew

8.5

Entertainment

7.8

Comfort

7.8

Food

7.2

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Overall

7.9

Crew

8.5

Entertainment

7.8

Comfort

7.8

Food

7.2

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Overall

7.9

Crew

8.5

Entertainment

7.8

Comfort

7.8

Food

7.2

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Overall

7.9

Crew

8.5

Entertainment

7.8

Comfort

7.8

Food

7.2

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

Overall

7.9

Crew

8.5

Entertainment

7.8

Comfort

7.8

Food

7.2

Boarding

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2026

SEA - KOA

The snacks were not very good, not everyone was very friendly and professional

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 19h 10m. United Airlines provides one of the quickest options available for as low as $750. Airlines will cover a distance of 4940 mi.

  • 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, April is the cheapest month in which you can book a flight from San Antonio to Portugal (average of $355). Flying from San Antonio to Portugal in June is currently the most expensive (average of $906). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 5 airlines flying from San Antonio to Portugal

Discover the top 5 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 June 10, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$445Average$776FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$492Average$984FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$522Average$1,282FlexibilityNo cancel feeOn-time71%
DeltaCheapest$578Average$1,049FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$807Average$946FlexibilityNo cancel feeOn-time76%

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