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$791+ Cheap flights from Santa Rosa (STS) 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 5/30. Fares are subject to change and may not be available on all flights or dates of travel.
STS — LIS
ene. 15 — ene. 221
jue. 1/15
jue. 1/22
1 adult, Economy
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Cheap flight deals from Santa Rosa to Portugal

Cheapest flights from Santa Rosa to Portugal
Explore the most affordable flight options available from Santa Rosa to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 16, 2025.

This American Airlines deal was found by Cheapflights users on 12/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/3112:59 pmSTS - LIS
2 stops20h 41mAmerican Airlines
jue. 1/88:55 amLIS - STS
2 stops38h 58mAmerican Airlines
Deal found 12/14$1,262
This American Airlines deal was found by Cheapflights users on 12/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/243:53 pmSTS - LIS
2 stops21h 57mAmerican Airlines
dom. 12/2811:05 amLIS - STS
2 stops60h 46mAmerican Airlines
Deal found 12/13$1,328
This American Airlines deal was found by Cheapflights users on 12/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/243:53 pmSTS - LIS
2 stops21h 57mAmerican Airlines
mar. 12/307:05 amLIS - STS
2 stops37h 24mAmerican Airlines
Deal found 12/13$1,470
This American Airlines deal was found by Cheapflights users on 12/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/3112:59 pmSTS - LIS
2 stops24h 51mAmerican Airlines
vie. 1/911:05 amLIS - STS
2 stops33h 20mAmerican Airlines
Deal found 12/14$1,588
This American Airlines deal was found by Cheapflights users on 12/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/253:53 pmSTS - LIS
2 stops22h 02mAmerican Airlines
dom. 12/2811:05 amLIS - STS
2 stops60h 46mAmerican Airlines
Deal found 12/13$1,616
This American Airlines deal was found by Cheapflights users on 12/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/243:53 pmSTS - LIS
2 stops21h 57mAmerican Airlines
lun. 12/2910:35 amLIS - STS
2 stops45h 43mAmerican Airlines
Deal found 12/13$1,653
This American Airlines deal was found by Cheapflights users on 12/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/243:53 pmSTS - LIS
2 stops21h 57mAmerican Airlines
mié. 12/3111:05 amLIS - STS
2 stops33h 24mAmerican Airlines
Deal found 12/13$1,678
This American Airlines deal was found by Cheapflights users on 12/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/253:53 pmSTS - LIS
2 stops22h 02mAmerican Airlines
mar. 12/307:05 amLIS - STS
2 stops37h 24mAmerican Airlines
Deal found 12/13$1,758
This American Airlines deal was found by Cheapflights users on 12/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/267:00 amSTS - LIS
2 stops17h 50mAmerican Airlines
dom. 12/2811:05 amLIS - STS
2 stops57h 24mAmerican Airlines
Deal found 12/13$1,826
This American Airlines deal was found by Cheapflights users on 12/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/267:00 amSTS - LIS
2 stops31h 25mAmerican Airlines
mar. 12/307:05 amLIS - STS
2 stops37h 24mAmerican Airlines
Deal found 12/13$1,855
This American Airlines deal was found by Cheapflights users on 12/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/313:53 pmSTS - LIS
2 stops21h 57mAmerican Airlines
sáb. 1/1011:05 amLIS - STS
2 stops30h 51mAmerican Airlines
Deal found 12/14$1,888
This American Airlines deal was found by Cheapflights users on 12/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/233:53 pmSTS - LIS
2 stops45h 57mAmerican Airlines
dom. 12/2811:05 amLIS - STS
2 stops60h 46mAmerican Airlines
Deal found 12/13$1,891

Find flight deals from Santa Rosa to Portugal

Keep the following information in mind while searching for Santa Rosa to Portugal flight deals. Data was last updated diciembre 16, 2025.

Most accurate provider

Justfly.com
3 stars

Most trusted provider

Justfly.com
3 stars

Round-trip from

$846
(American Airlines)

One-way from

$791
(Finnair)

Popular in

June

Cheapest in

January

Average price

$974
Provider with most accurate pricing for San Francisco-Lisbon Humberto Delgado flight deals.
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Provider most trusted by Cheapflights users for San Francisco-Lisbon Humberto Delgado flights.
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From Santa Rosa Sonoma County to Portugal
Search Deals
One-way flight from Santa Rosa Sonoma County to Portugal
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($149 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Santa Rosa 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 diciembre 16, 2025.
Use the filters below to find and compare flights from Santa Rosa to Portugal that are best for you.

Fly from

Santa Rosa

Fly to

Portugal

Route

Depart

Return

Price

Santa RosaLisbon

STS - LIS

STSLIS

Santa Rosa Sonoma County

vie. 3/13

7:00 am-5:55 pm

2 stops27h 55m

Lisbon Humberto Delgado

jue. 3/19

7:00 am-11:41 pm

2 stops23h 41m

$870

Santa RosaLisbon

STS - LIS

STSLIS

Santa Rosa Sonoma County

mié. 3/11

12:58 pm-5:40 pm

2 stops21h 42m

Lisbon Humberto Delgado

jue. 3/19

7:00 am-11:41 pm

2 stops23h 41m

$870

Santa RosaLisbon

STS - LIS

STSLIS

Santa Rosa Sonoma County

jue. 3/12

7:00 am-6:00 pm

2 stops28h 00m

Lisbon Humberto Delgado

lun. 3/23

10:35 am-9:47 am

2 stops30h 12m

$870

Santa RosaLisbon

STS - LIS

STSLIS

Santa Rosa Sonoma County

mié. 3/11

12:58 pm-5:40 pm

2 stops21h 42m

Lisbon Humberto Delgado

vie. 3/20

10:40 am-9:47 am

2 stops30h 07m

$870

Santa RosaLisbon

STS - LIS

STSLIS

Santa Rosa Sonoma County

jue. 3/12

7:00 am-9:55 pm

2 stops31h 55m

Lisbon Humberto Delgado

vie. 3/20

10:40 am-9:47 am

2 stops30h 07m

$870

Santa RosaLisbon

STS - LIS

STSLIS

Santa Rosa Sonoma County

vie. 3/13

7:00 am-10:25 pm

2 stops32h 25m

Lisbon Humberto Delgado

vie. 3/20

10:40 am-9:47 am

2 stops30h 07m

$870

Santa RosaLisbon

STS - LIS

STSLIS

Santa Rosa Sonoma County

sáb. 3/14

12:58 pm-2:50 pm

2 stops42h 52m

Lisbon Humberto Delgado

vie. 3/20

10:40 am-9:47 am

2 stops54h 07m

$965

Santa RosaLisbon

STS - LIS

STSLIS

Santa Rosa Sonoma County

jue. 4/16

1:22 pm-11:00 pm

2 stops25h 38m

Lisbon Humberto Delgado

mar. 4/28

7:15 am-9:51 pm

2 stops22h 36m

$1,019

Santa RosaLisbon

STS - LIS

STSLIS

Santa Rosa Sonoma County

dom. 3/15

7:00 am-9:45 pm

2 stops31h 45m

Lisbon Humberto Delgado

vie. 3/20

7:05 am-11:41 pm

2 stops23h 36m

$1,065

Santa RosaLisbon

STS - LIS

STSLIS

Santa Rosa Sonoma County

dom. 3/15

7:00 am-9:45 pm

2 stops31h 45m

Lisbon Humberto Delgado

jue. 3/19

7:00 am-11:41 pm

2 stops23h 41m

$1,065

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Showing 1-10 of 19 results
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Best time to book a flight from Santa Rosa to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal from Santa Rosa 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 Santa Rosa to Portugal

What is the cheapest month to book a flight from Santa Rosa to Portugal?

Currently, January is the cheapest month in which you can book a flight from Santa Rosa to Portugal (average of $488). Flying from Santa Rosa to Portugal in June is currently the most expensive (average of $782). 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.

Related info for your journey

Find useful and relevant information for your journey from Santa Rosa 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 Santa Rosa to Portugal?

    Santa Rosa Sonoma County (STS) is the airport you will fly out of if you book a flight from Santa Rosa to Portugal. It is only a 7.2 mi journey to Sonoma County (STS) from Santa Rosa’s city center.

  • How long is the flight from Santa Rosa to Portugal?

    A quick flight from Santa Rosa to Portugal can take about 27h 55m. American Airlines provides one of the quickest options available for as low as $870. Airlines will cover a distance of 5639 mi.

  • Can I find deals for flights from Santa Rosa to Portugal that include hotel bookings?

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

  • How can I find direct flights from Santa Rosa to Portugal?

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

  • Can I find deals for business class flights from Santa Rosa to Portugal?

    Yes. Cheapflights offers flight deals from Santa Rosa 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 Santa Rosa to Portugal?

    Currently, January is the cheapest month in which you can book a flight from Santa Rosa to Portugal (average of $488). Flying from Santa Rosa to Portugal in June is currently the most expensive (average of $782). 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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