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$365+ Cheap flights from Greenville (GSP) 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 5/27. Fares are subject to change and may not be available on all flights or dates of travel.
GSP — LIS
Feb 13 — Feb 201
Fri 2/13
Fri 2/20
1 adult, Economy
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Cheap flight deals from Greenville to Portugal

Keep the following information in mind while searching for Greenville to Portugal flight deals. Data was last updated January 14, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$458
(oojo)

One-way from

$365
(oojo)

Popular in

June

Cheapest in

February

Average price

$655
Provider with most accurate pricing for Greenville-Lisbon Humberto Delgado flight deals.
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Provider most trusted by Cheapflights users for Greenville-Lisbon Humberto Delgado flights.
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From Greenville to Portugal
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One-way flight from Greenville to Portugal
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Highest demand for flights based on searches. 27% potential increase in price ($348 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($41 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Find flight deals from Greenville to Portugal

Cheapest flights from Greenville to Portugal
Explore the most affordable flight options available from Greenville to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 14, 2026.

This lastminute.com deal was found by Cheapflights users on 1/12. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/197:46 pm
GSP
-
LIS
2 stops31h 14m
Virgin Atlantic
Tue 2/310:00 am
LIS
-
GSP
2 stops17h 24m
Virgin Atlantic
Deal found 1/12$436
This Delta deal was found by Cheapflights users on 1/12. 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.
Mon 1/196:05 am
GSP
-
LIS
1 stop20h 55m
Delta
Tue 2/310:00 am
LIS
-
GSP
2 stops16h 52m
Delta
Deal found 1/12$447
This oojo deal was found by Cheapflights users on 1/12. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/116:00 am
GSP
-
LIS
2 stops27h 50m
British Airways
Thu 2/197:00 am
LIS
-
GSP
2 stops18h 46m
British Airways
Deal found 1/12$458
This British Airways deal was found by Cheapflights users on 1/13. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1411:00 am
GSP
-
LIS
2 stops22h 30m
Multiple Airlines
Tue 4/2811:00 am
LIS
-
GSP
2 stops17h 58m
Multiple Airlines
Deal found 1/13$474
This Expedia deal was found by Cheapflights users on 1/12. 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 1/197:46 pm
GSP
-
LIS
2 stops31h 14m
Multiple Airlines
Tue 2/310:00 am
LIS
-
GSP
2 stops16h 52m
Multiple Airlines
Deal found 1/12$475
This oojo deal was found by Cheapflights users on 1/13. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2710:50 am
GSP
-
LIS
2 stops23h 00m
British Airways
Fri 3/67:05 am
LIS
-
GSP
2 stops18h 41m
British Airways
Deal found 1/13$482
This oojo deal was found by Cheapflights users on 1/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/136:00 am
GSP
-
LIS
2 stops30h 55m
British Airways
Tue 11/107:40 pm
LIS
-
GSP
2 stops30h 14m
British Airways
Deal found 1/14$483
This oojo deal was found by Cheapflights users on 1/12. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/217:10 am
GSP
-
LIS
2 stops27h 25m
British Airways
Tue 5/127:10 am
LIS
-
GSP
2 stops17h 51m
British Airways
Deal found 1/12$488
This United Airlines deal was found by Cheapflights users on 1/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/196:20 am
GSP
-
LIS
1 stop20h 50m
United Airlines
Tue 2/35:00 am
LIS
-
GSP
2 stops20h 47m
United Airlines
Deal found 1/13$489
This United Airlines deal was found by Cheapflights users on 1/14. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/286:30 am
GSP
-
OPO
2 stops22h 00m
United Airlines
Sat 3/76:00 am
OPO
-
GSP
2 stops32h 01m
United Airlines
Deal found 1/14$491
This KAYAK deal was found by Cheapflights users on 1/14. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:42 pm
GSP
-
OPO
2 stops22h 43m
Lufthansa
Tue 4/286:00 am
OPO
-
GSP
2 stops17h 59m
Lufthansa
Deal found 1/14$494
This oojo deal was found by Cheapflights users on 1/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/2810:55 am
GSP
-
LIS
2 stops22h 55m
British Airways
Sat 3/77:00 am
LIS
-
GSP
2 stops19h 13m
British Airways
Deal found 1/14$496

Cheapflights Fare Finder

 
Customize your flight search to find flights from Greenville 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 January 14, 2026.
Use the filters below to find and compare flights from Greenville to Portugal that are best for you.

Fly from

Greenville

Fly to

Portugal

Route

Depart

Return

Price

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Wed 2/11

6:00 am-2:50 pm

2 stops27h 50m

Lisbon Humberto Delgado

Thu 2/19

7:00 am-8:46 pm

2 stops18h 46m

$458

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Sun 4/26

7:50 am-11:05 pm

2 stops34h 15m

Lisbon Humberto Delgado

Wed 5/13

7:20 am-7:38 pm

2 stops17h 18m

$475

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Sat 2/28

6:30 am-9:30 am

2 stops22h 00m

Porto

Sat 3/7

6:00 am-9:01 am

2 stops32h 01m

$491

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Tue 4/14

7:42 pm-11:25 pm

2 stops22h 43m

Porto

Tue 4/28

6:00 am-6:59 pm

2 stops17h 59m

$494

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Fri 2/13

10:50 am-5:55 pm

2 stops26h 05m

Lisbon Humberto Delgado

Tue 11/10

11:05 am-5:52 pm

1 stop11h 47m

$495

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Tue 4/14

11:00 am-5:55 pm

2 stops25h 55m

Lisbon Humberto Delgado

Tue 4/28

11:05 am-8:01 pm

1 stop13h 56m

$496

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Sat 2/28

10:55 am-2:50 pm

2 stops22h 55m

Lisbon Humberto Delgado

Sat 3/7

7:00 am-9:13 pm

2 stops19h 13m

$496

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Fri 2/27

10:50 am-12:05 pm

2 stops20h 15m

Lisbon Humberto Delgado

Fri 3/6

11:05 am-10:42 am

1 stop28h 37m

$500

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Thu 2/19

6:30 am-11:40 am

2 stops24h 10m

Porto

Mon 2/23

6:00 am-2:16 pm

2 stops37h 16m

$506

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Wed 2/11

6:00 am-2:50 pm

2 stops27h 50m

Lisbon Humberto Delgado

Fri 2/20

11:05 am-8:46 pm

1 stop14h 41m

$508

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/12

Showing 1-10 of 28 results
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Best time to book a flight from Greenville to Portugal

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

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

Currently, January is the cheapest month in which you can book a flight from Greenville to Portugal (average of $318). Flying from Greenville to Portugal in June is currently the most expensive (average of $733). 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 January 14, 2026.
Read through reviews of airlines operating flights from Greenville to Portugal, such as United Airlines, American Airlines, and British Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,157 reviews

Boarding

7.7

Overall

7.4

Entertainment

7.1

Food

6.6

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,157 reviews
United Airlines
7.4
Good
9,157 reviews

Boarding

7.7

Overall

7.4

Entertainment

7.1

Food

6.6

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
American Airlines
7.2
Good
11,124 reviews
United Airlines
7.4
Good
9,157 reviews

Boarding

7.7

Overall

7.4

Entertainment

7.1

Food

6.6

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
British Airways
6.7
Okay
7,672 reviews
United Airlines
7.4
Good
9,157 reviews

Boarding

7.7

Overall

7.4

Entertainment

7.1

Food

6.6

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

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

    Greenville (GSP), located 10.4 mi from the city center, is the airport you fly out of when you book flights from Greenville to Portugal.

  • How long is the flight from Greenville to Portugal?

    Airlines like British Airways, United Airlines, and Lufthansa fly from Greenville to Portugal in about 22h. The time it takes to get you to your destination can typically vary by up to 5h 50m. The distance between Greenville and Portugal is about 3901 mi. This flight may include one or multiple stops.

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

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

  • How can I find direct flights from Greenville to Portugal?

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

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

    Yes. Cheapflights offers flight deals from Greenville 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 Greenville to Portugal?

    Currently, January is the cheapest month in which you can book a flight from Greenville to Portugal (average of $318). Flying from Greenville to Portugal in June is currently the most expensive (average of $733). 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 3 airlines flying from Greenville to Portugal

Discover the top 3 airlines that operate flights from Greenville 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 January 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$535Average$993FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$587Average$1,067FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$672Average$954FlexibilityNo cancel feeOn-time69%

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