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Portugal

$346+ 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 12/1. Fares are subject to change and may not be available on all flights or dates of travel.
GSP — LIS
Aug 8 — Aug 151
Sat 8/8
Sat 8/15
1 adult, Economy
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Cheap 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 July 9, 2026.

This United deal was found by Cheapflights users on 7/5. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/156:00 am
GSP
-
LIS
1 stop21h 10m
Multiple Airlines
Tue 11/2412:50 pm
LIS
-
GSP
2 stops49h 56m
Multiple Airlines
Deal found 7/5$711
This American Airlines deal was found by Cheapflights users on 7/5. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/154:25 pm
GSP
-
LIS
2 stops14h 40m
American Airlines
Tue 11/246:30 am
LIS
-
GSP
2 stops17h 51m
American Airlines
Deal found 7/5$715
This United Airlines deal was found by Cheapflights users on 7/5. 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.
Sun 11/157:47 pm
GSP
-
LIS
1 stop9h 18m
United Airlines
Tue 11/2410:15 am
LIS
-
GSP
1 stop18h 22m
United Airlines
Deal found 7/5$726
This United Airlines deal was found by Cheapflights users on 7/5. 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.
Mon 11/27:47 pm
GSP
-
OPO
2 stops32h 43m
United Airlines
Tue 11/176:00 am
OPO
-
GSP
2 stops22h 37m
United Airlines
Deal found 7/5$749
This United Airlines deal was found by Cheapflights users on 7/6. 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.
Thu 10/111:30 am
GSP
-
LIS
1 stop15h 50m
United Airlines
Fri 10/305:00 am
LIS
-
GSP
2 stops45h 46m
United Airlines
Deal found 7/6$835
This United Airlines deal was found by Cheapflights users on 7/6. 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.
Mon 10/2610:21 am
GSP
-
LIS
1 stop19h 59m
United Airlines
Fri 10/3010:15 am
LIS
-
GSP
1 stop17h 22m
United Airlines
Deal found 7/6$837
This United Airlines deal was found by Cheapflights users on 7/4. 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 8/187:00 am
GSP
-
OPO
1 stop18h 15m
United Airlines
Tue 8/2512:15 pm
OPO
-
GSP
2 stops39h 48m
United Airlines
Deal found 7/4$888
This United Airlines deal was found by Cheapflights users on 7/6. 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.
Sat 10/34:00 pm
GSP
-
LIS
1 stop11h 20m
United Airlines
Sat 10/105:05 am
LIS
-
GSP
2 stops20h 53m
United Airlines
Deal found 7/6$895
This United Airlines deal was found by Cheapflights users on 7/4. 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 8/311:18 am
GSP
-
OPO
1 stop14h 37m
United Airlines
Fri 9/46:00 am
OPO
-
GSP
2 stops32h 36m
United Airlines
Deal found 7/4$900
This United Airlines deal was found by Cheapflights users on 7/4. 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 8/26:30 am
GSP
-
OPO
1 stop19h 25m
United Airlines
Thu 9/36:00 am
OPO
-
GSP
2 stops32h 48m
United Airlines
Deal found 7/4$905
This United Airlines deal was found by Cheapflights users on 7/4. 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 8/411:18 am
GSP
-
OPO
1 stop17h 27m
United Airlines
Fri 9/49:00 am
OPO
-
GSP
1 stop15h 45m
United Airlines
Deal found 7/4$908
This Delta deal was found by Cheapflights users on 7/4. 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.
Sun 8/23:06 pm
GSP
-
OPO
2 stops14h 34m
Delta
Fri 9/45:00 am
OPO
-
GSP
2 stops18h 13m
Delta
Deal found 7/4$909

Find flight deals from Greenville to Portugal

Keep the following information in mind while searching for Greenville to Portugal flight deals. Data was last updated July 9, 2026.

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$711
(United)

One-way from

$346
(United Airlines)

Popular in

December

Cheapest in

February

Average price

$1,319
Provider with most accurate pricing for Greenville-Lisbon Humberto Delgado flight deals.
Search Deals
Provider most trusted by Cheapflights users for Greenville-Lisbon Humberto Delgado flights.
Search Deals
From Greenville to Portugal
Search Deals
One-way flight from Greenville to Portugal
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($310 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($69 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

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 July 9, 2026.
Use the filters below to find and compare flights from Greenville to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Sun 11/15

6:00 am-8:10 am

1 stop21h 10m

Lisbon Humberto Delgado

Tue 11/24

12:50 pm-9:46 am

2 stops49h 56m

$711

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Sun 11/15

7:47 pm-10:05 am

1 stop9h 18m

Lisbon Humberto Delgado

Tue 11/24

10:15 am-11:37 pm

1 stop18h 22m

$726

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Mon 11/2

7:47 pm-9:30 am

2 stops32h 43m

Porto

Tue 11/17

6:00 am-11:37 pm

2 stops22h 37m

$749

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Mon 10/26

7:47 pm-10:20 am

1 stop10h 33m

Lisbon Humberto Delgado

Fri 10/30

12:20 pm-1:39 pm

2 stops29h 19m

$842

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Tue 8/18

7:00 am-6:15 am

1 stop18h 15m

Porto

Tue 8/25

12:15 pm-11:03 pm

2 stops39h 48m

$888

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Sat 10/3

4:00 pm-8:20 am

1 stop11h 20m

Lisbon Humberto Delgado

Sat 10/10

5:05 am-8:58 pm

2 stops20h 53m

$895

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Tue 8/4

11:18 am-6:15 am

1 stop13h 57m

Porto

Thu 9/3

9:00 am-7:45 pm

1 stop15h 45m

$908

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Mon 8/3

6:30 am-6:55 am

1 stop19h 25m

Porto

Thu 9/3

12:35 pm-11:03 pm

1 stop15h 28m

$908

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Wed 9/9

4:00 pm-9:45 am

1 stop12h 45m

Porto

Thu 9/17

6:00 am-7:05 pm

2 stops18h 05m

$938

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Mon 8/31

11:25 am-6:55 am

1 stop14h 30m

Porto

Wed 9/9

6:00 am-11:15 pm

2 stops22h 15m

$938

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/6

Showing 1-10 of 27 resultsSorted by cheapest first
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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 $509). Flying from Greenville to Portugal in May is currently the most expensive (average of $1,204). 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 July 9, 2026.
Read through reviews of airlines operating flights from Greenville to Portugal, such as United Airlines,American Airlines, andBritish Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,960 reviews

Boarding

7.7

Food

6.7

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this
United Airlines
7.4
Good
9,960 reviews
United Airlines
7.4
Good
9,960 reviews

Boarding

7.7

Food

6.7

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this
American Airlines
7.1
Good
11,792 reviews
United Airlines
7.4
Good
9,960 reviews

Boarding

7.7

Food

6.7

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this
British Airways
6.7
Okay
8,105 reviews
United Airlines
7.4
Good
9,960 reviews

Boarding

7.7

Food

6.7

Entertainment

7.1

Overall

7.4

Comfort

7.3

Crew

8.1

Reviews

1 / 20
6.0
Good

ROHIT,Jun 2026

IND - EWR

It should not be delayed by 2 hours. I missed the important event due to this

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 United Airlines fly from Greenville to Portugal in about 9h 18m. The time it takes to get you to your destination can typically vary by up to . The distance between Greenville and Portugal is about 3937 mi.

  • 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 $509). Flying from Greenville to Portugal in May is currently the most expensive (average of $1,204). 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 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 July 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$509Average$1,194FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$510Average$1,216FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$624Average$1,074FlexibilityNo cancel feeOn-time70%

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