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Portugal

$471+ 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 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
GSP — LIS
Apr 20 — Apr 271
Mon 4/20
Mon 4/27
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 March 21, 2026.

This Expedia deal was found by Cheapflights users on 3/20. 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.
Sat 5/26:22 pm
GSP
-
LIS
2 stops23h 03m
Air France
Sat 5/95:35 am
LIS
-
GSP
2 stops15h 42m
Air France
Deal found 3/20$668
This Expedia deal was found by Cheapflights users on 3/20. 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.
Wed 4/227:42 pm
GSP
-
LIS
2 stops22h 03m
Lufthansa
Wed 4/295:05 am
LIS
-
GSP
2 stops20h 42m
Lufthansa
Deal found 3/20$672
This Air France deal was found by Cheapflights users on 3/21. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/145:50 pm
GSP
-
LIS
2 stops16h 05m
Multiple Airlines
Tue 4/215:00 am
LIS
-
GSP
2 stops16h 45m
Multiple Airlines
Deal found 3/21$673
This Gotogate deal was found by Cheapflights users on 3/18. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/211:01 am
GSP
-
LIS
2 stops42h 04m
Multiple Airlines
Sat 5/96:35 am
LIS
-
GSP
2 stops45h 05m
Multiple Airlines
Deal found 3/18$691
This KAYAK deal was found by Cheapflights users on 3/17. 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 4/145:41 pm
GSP
-
LIS
2 stops24h 04m
Lufthansa
Tue 4/215:05 am
LIS
-
GSP
2 stops20h 42m
Lufthansa
Deal found 3/17$697
This United Airlines deal was found by Cheapflights users on 3/16. 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 12/72:54 pm
GSP
-
LIS
1 stop14h 21m
United Airlines
Thu 12/105:00 am
LIS
-
GSP
2 stops21h 11m
United Airlines
Deal found 3/16$699
This British Airways deal was found by Cheapflights users on 3/18. 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 4/1411:01 am
GSP
-
LIS
2 stops30h 59m
British Airways
Tue 4/217:10 am
LIS
-
GSP
2 stops39h 37m
British Airways
Deal found 3/18$702
This United Airlines deal was found by Cheapflights users on 3/17. 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 12/55:41 pm
GSP
-
OPO
2 stops40h 34m
United Airlines
Wed 12/96:00 am
OPO
-
GSP
2 stops20h 11m
United Airlines
Deal found 3/17$719
This British Airways deal was found by Cheapflights users on 3/19. 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.
Sun 5/37:52 am
GSP
-
OPO
2 stops27h 08m
Multiple Airlines
Sun 5/108:20 am
OPO
-
GSP
2 stops19h 42m
Multiple Airlines
Deal found 3/19$825
This United Airlines deal was found by Cheapflights users on 3/20. 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 12/75:15 pm
GSP
-
OPO
2 stops41h 00m
United Airlines
Thu 12/106:00 am
OPO
-
GSP
2 stops38h 18m
United Airlines
Deal found 3/20$831
This United Airlines deal was found by Cheapflights users on 3/17. 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 4/145:41 pm
GSP
-
OPO
2 stops40h 59m
United Airlines
Sun 4/196:00 am
OPO
-
GSP
2 stops41h 59m
United Airlines
Deal found 3/17$835
This Expedia deal was found by Cheapflights users on 3/20. 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 5/47:59 pm
GSP
-
OPO
2 stops17h 11m
KLM
Mon 5/117:00 pm
OPO
-
GSP
2 stops43h 04m
KLM
Deal found 3/20$853

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 March 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$627
(Delta)

One-way from

$450
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$1,019
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. 16% potential increase in price ($187 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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 March 21, 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

Tue 4/21

6:26 pm-2:55 pm

2 stops15h 29m

Lisbon Humberto Delgado

Tue 5/12

9:20 am-9:38 pm

2 stops17h 18m

$714

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Sat 4/25

6:22 pm-6:45 pm

2 stops19h 23m

Lisbon Humberto Delgado

Fri 5/8

5:00 am-8:13 pm

2 stops20h 13m

$725
Quickest round-trip

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Tue 4/21

7:42 pm-3:35 pm

2 stops14h 53m

Lisbon Humberto Delgado

Tue 5/12

10:25 am-5:10 pm

1 stop11h 45m

$740

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Sat 4/25

11:01 am-9:05 am

1 stop17h 04m

Lisbon Humberto Delgado

Fri 5/8

11:05 am-11:02 pm

2 stops16h 57m

$784

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Fri 5/1

11:01 am-3:35 pm

2 stops23h 34m

Lisbon Humberto Delgado

Fri 5/8

11:05 am-11:02 pm

2 stops16h 57m

$824

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Tue 4/14

5:41 pm-3:40 pm

2 stops40h 59m

Porto

Sun 4/19

6:00 am-6:59 pm

2 stops41h 59m

$835

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Mon 9/14

7:51 pm-10:30 am

1 stop9h 39m

Lisbon Humberto Delgado

Thu 9/24

11:25 am-9:11 pm

2 stops38h 46m

$886

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Fri 4/24

5:23 pm-3:25 pm

2 stops17h 02m

Porto

Sat 5/2

5:55 am-10:13 pm

2 stops21h 18m

$893

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Fri 5/1

2:52 pm-3:45 pm

2 stops19h 53m

Porto

Fri 5/8

6:00 am-10:58 pm

2 stops21h 58m

$924

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Sat 5/2

7:35 pm-3:40 pm

2 stops39h 05m

Porto

Sat 5/9

12:05 pm-10:58 pm

2 stops39h 53m

$1,000

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/17

Showing 1-10 of 35 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 $296). Flying from Greenville to Portugal in June is currently the most expensive (average of $732). 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 March 21, 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
9,451 reviews

Comfort

7.3

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

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
9,451 reviews
United Airlines
7.4
Good
9,451 reviews

Comfort

7.3

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

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
7.1
Good
11,487 reviews
United Airlines
7.4
Good
9,451 reviews

Comfort

7.3

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

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
7,805 reviews
United Airlines
7.4
Good
9,451 reviews

Comfort

7.3

Overall

7.4

Boarding

7.7

Food

6.6

Crew

8.1

Entertainment

7.1

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 Delta, Air France, and Lufthansa fly from Greenville to Portugal in about 18h 24m. The time it takes to get you to your destination can typically vary by up to 4h 39m. The distance between Greenville and Portugal is about 3937 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 $296). Flying from Greenville to Portugal in June is currently the most expensive (average of $732). 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 March 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$535Average$939FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$559Average$1,103FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$587Average$1,019FlexibilityNo cancel feeOn-time71%

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