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Portugal

$419+ 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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
GSP — LIS
Jul 13 — Jul 201
Mon 7/13
Mon 7/20
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 June 13, 2026.

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.
Mon 12/72:54 pm
GSP
-
LIS
1 stop14h 21m
United Airlines
Thu 12/101:00 pm
LIS
-
GSP
2 stops33h 00m
United Airlines
Deal found 6/9$746
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.
Mon 12/78:40 am
GSP
-
LIS
2 stops20h 10m
Air Canada
Thu 12/101:00 pm
LIS
-
GSP
2 stops37h 11m
Air Canada
Deal found 6/9$749
This United Airlines deal was found by Cheapflights users on 6/11. 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 10/258:40 am
GSP
-
OPO
2 stops20h 50m
United Airlines
Sat 11/76:00 am
OPO
-
GSP
2 stops22h 19m
United Airlines
Deal found 6/11$800
This United deal was found by Cheapflights users on 6/10. 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 10/256:00 am
GSP
-
OPO
1 stop23h 30m
Multiple Airlines
Sat 11/76:00 am
OPO
-
GSP
2 stops20h 11m
Multiple Airlines
Deal found 6/10$801
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.
Tue 10/207:35 pm
GSP
-
LIS
1 stop9h 55m
United Airlines
Tue 10/275:00 am
LIS
-
GSP
2 stops20h 11m
United Airlines
Deal found 6/8$826
This Justfly.com 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/206:00 am
GSP
-
LIS
2 stops22h 20m
Multiple Airlines
Tue 10/275:00 am
LIS
-
GSP
2 stops22h 19m
Multiple Airlines
Deal found 6/8$830
This United Airlines deal was found by Cheapflights users on 6/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/238:45 am
GSP
-
LIS
1 stop18h 25m
United Airlines
Mon 11/3012:25 pm
LIS
-
GSP
2 stops37h 46m
United Airlines
Deal found 6/12$846
This Delta deal was found by Cheapflights users on 6/11. 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 7/1211:42 am
GSP
-
OPO
2 stops17h 43m
Delta
Tue 7/215:00 am
OPO
-
GSP
2 stops22h 35m
Delta
Deal found 6/11$930
This United Airlines deal was found by Cheapflights users on 6/11. 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 7/126:30 am
GSP
-
OPO
1 stop19h 25m
United Airlines
Tue 7/219:00 am
OPO
-
GSP
1 stop15h 08m
United Airlines
Deal found 6/11$938
This Delta deal was found by Cheapflights users on 6/10. 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 8/32:51 pm
GSP
-
OPO
2 stops19h 34m
Delta
Wed 8/125:00 am
OPO
-
GSP
2 stops22h 59m
Delta
Deal found 6/10$943
This Delta deal was found by Cheapflights users on 6/10. 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 8/55:20 pm
GSP
-
OPO
2 stops20h 00m
Delta
Wed 8/125:00 am
OPO
-
GSP
2 stops21h 26m
Delta
Deal found 6/10$947
This KAYAK deal was found by Cheapflights users on 6/13. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/256:00 am
GSP
-
OPO
1 stop23h 30m
Lufthansa
Sat 11/712:35 pm
OPO
-
GSP
1 stop15h 44m
Lufthansa
Deal found 6/13$974

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 June 13, 2026.

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$746
(United Airlines)

One-way from

$419
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$1,140
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. 5% potential increase in price ($55 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($46 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 June 13, 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

Mon 12/7

2:54 pm-10:15 am

1 stop14h 21m

Lisbon Humberto Delgado

Thu 12/10

1:00 pm-5:00 pm

2 stops33h 00m

$746

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Mon 12/7

8:40 am-9:50 am

2 stops20h 10m

Lisbon Humberto Delgado

Thu 12/10

1:00 pm-9:11 pm

2 stops37h 11m

$750

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Sun 10/25

8:40 am-9:30 am

2 stops20h 50m

Porto

Sat 11/7

6:00 am-11:19 pm

2 stops22h 19m

$800
Quickest round-trip

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Tue 10/20

7:35 pm-10:30 am

1 stop9h 55m

Lisbon Humberto Delgado

Tue 10/27

5:00 am-9:11 pm

2 stops20h 11m

$826

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Mon 11/23

8:45 am-8:10 am

1 stop18h 25m

Lisbon Humberto Delgado

Mon 11/30

12:25 pm-9:11 pm

2 stops37h 46m

$846

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Wed 8/5

5:20 pm-6:20 pm

2 stops20h 00m

Porto

Wed 8/12

5:00 am-9:26 pm

2 stops21h 26m

$947

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Thu 7/9

6:00 am-6:55 am

1 stop19h 55m

Porto

Wed 7/15

6:00 am-7:08 pm

2 stops18h 08m

$1,000

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Mon 7/27

6:30 am-6:55 am

1 stop19h 25m

Porto

Mon 8/3

6:00 am-5:00 pm

2 stops40h 00m

$1,016

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Mon 8/3

6:30 am-6:55 am

1 stop19h 25m

Porto

Wed 8/12

11:20 am-9:36 am

2 stops27h 16m

$1,049

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Wed 8/5

7:49 pm-9:45 am

1 stop32h 56m

Porto

Wed 8/12

11:20 am-1:32 pm

2 stops31h 12m

$1,122

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/12

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 June 13, 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
9,815 reviews

Overall

7.4

Crew

8.1

Entertainment

7.1

Boarding

7.7

Food

6.6

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
United Airlines
7.4
Good
9,815 reviews
United Airlines
7.4
Good
9,815 reviews

Overall

7.4

Crew

8.1

Entertainment

7.1

Boarding

7.7

Food

6.6

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
American Airlines
7.1
Good
11,648 reviews
United Airlines
7.4
Good
9,815 reviews

Overall

7.4

Crew

8.1

Entertainment

7.1

Boarding

7.7

Food

6.6

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
British Airways
6.7
Okay
8,047 reviews
United Airlines
7.4
Good
9,815 reviews

Overall

7.4

Crew

8.1

Entertainment

7.1

Boarding

7.7

Food

6.6

Comfort

7.3

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

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 and Delta fly from Greenville to Portugal in about 14h 21m. The time it takes to get you to your destination can typically vary by up to 5h 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 $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 June 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$509Average$1,128FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$559Average$959FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$598Average$1,024FlexibilityNo cancel feeOn-time70%

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