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Portugal

$343+ 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 11/3. Fares are subject to change and may not be available on all flights or dates of travel.
GSP — LIS
jun. 26 — jul. 31
fr. 6/26
fr. 7/3
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 mai 27, 2026.

This United Airlines deal was found by Cheapflights users on 5/25. 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.
ti. 11/32:54 pm
GSP
-
LIS
1 stop14h 21m
United Airlines
fr. 11/611:20 am
LIS
-
GSP
2 stops40h 59m
United Airlines
Deal found 5/25$742
This United Airlines deal was found by Cheapflights users on 5/25. 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.
sø. 11/158:45 am
GSP
-
OPO
1 stop19h 45m
United Airlines
to. 11/196:00 am
OPO
-
GSP
2 stops20h 11m
United Airlines
Deal found 5/25$746
This United Airlines deal was found by Cheapflights users on 5/23. 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.
on. 11/48:45 am
GSP
-
LIS
1 stop18h 25m
United Airlines
on. 11/111:00 pm
LIS
-
GSP
2 stops29h 35m
United Airlines
Deal found 5/23$747
This United Airlines deal was found by Cheapflights users on 5/22. 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.
sø. 11/1510:21 am
GSP
-
LIS
1 stop18h 54m
United Airlines
to. 11/195:00 am
LIS
-
GSP
2 stops21h 11m
United Airlines
Deal found 5/22$750
This FlightHub deal was found by Cheapflights users on 5/22. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ma. 11/92:54 pm
GSP
-
LIS
1 stop14h 21m
Lufthansa
ma. 11/163:50 pm
LIS
-
GSP
2 stops36h 29m
Lufthansa
Deal found 5/22$764
This United Airlines deal was found by Cheapflights users on 5/22. 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.
ma. 11/98:40 am
GSP
-
LIS
2 stops20h 35m
United Airlines
ma. 11/1612:25 pm
LIS
-
GSP
2 stops39h 54m
United Airlines
Deal found 5/22$775
This Lufthansa deal was found by Cheapflights users on 5/24. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ma. 6/1511:18 am
GSP
-
OPO
1 stop14h 37m
Lufthansa
ti. 11/36:00 am
OPO
-
GSP
2 stops20h 11m
Lufthansa
Deal found 5/24$785
This Air France deal was found by Cheapflights users on 5/26. 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.
sø. 11/2212:00 pm
GSP
-
OPO
2 stops16h 05m
Multiple Airlines
fr. 11/275:40 am
OPO
-
GSP
2 stops18h 09m
Multiple Airlines
Deal found 5/26$806
This Expedia deal was found by Cheapflights users on 5/22. 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.
ma. 11/910:55 am
GSP
-
LIS
1 stop17h 10m
British Airways
ma. 11/1611:05 am
LIS
-
GSP
1 stop14h 49m
British Airways
Deal found 5/22$812
This Air France deal was found by Cheapflights users on 5/26. 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.
lø. 11/2111:10 am
GSP
-
OPO
2 stops18h 20m
Air France
fr. 11/275:40 am
OPO
-
GSP
2 stops18h 09m
Air France
Deal found 5/26$866
This KAYAK deal was found by Cheapflights users on 5/26. 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.
sø. 11/225:41 pm
GSP
-
OPO
2 stops38h 09m
Lufthansa
fr. 11/2712:35 pm
OPO
-
GSP
1 stop15h 44m
Lufthansa
Deal found 5/26$877
This United Airlines deal was found by Cheapflights users on 5/22. 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.
to. 9/247:47 pm
GSP
-
OPO
2 stops32h 58m
United Airlines
to. 10/111:50 am
OPO
-
GSP
2 stops40h 39m
United Airlines
Deal found 5/22$893

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 mai 27, 2026.

Most accurate provider

Ovago
3 stars

Most trusted provider

Ovago
3 stars

Round-trip from

$742
(United Airlines)

One-way from

$343
(American Airlines)

Popular in

May

Cheapest in

February

Average price

$1,275
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. 15% potential increase in price ($163 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 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 mai 27, 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

ti. 11/3

2:54 pm-10:15 am

1 stop14h 21m

Lisbon Humberto Delgado

fr. 11/6

11:20 am-11:19 pm

2 stops40h 59m

$742

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

sø. 11/15

8:45 am-9:30 am

1 stop19h 45m

Porto

to. 11/19

6:00 am-9:11 pm

2 stops20h 11m

$746

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

sø. 11/15

10:21 am-10:15 am

1 stop18h 54m

Lisbon Humberto Delgado

to. 11/19

5:00 am-9:11 pm

2 stops21h 11m

$750

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

ma. 11/9

10:55 am-9:05 am

1 stop17h 10m

Lisbon Humberto Delgado

ma. 11/16

11:05 am-8:54 pm

1 stop14h 49m

$812

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

ma. 6/15

11:18 am-9:45 am

1 stop17h 27m

Porto

ti. 11/3

12:35 pm-11:19 pm

1 stop15h 44m

$894

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

ti. 9/29

10:23 am-10:30 am

1 stop19h 07m

Lisbon Humberto Delgado

to. 10/15

12:20 pm-7:04 pm

1 stop11h 44m

$906
Quickest round-trip

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

ti. 9/29

11:18 am-9:20 am

2 stops17h 02m

Lisbon Humberto Delgado

to. 10/15

10:25 am-6:14 pm

1 stop12h 49m

$917

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

lø. 11/21

5:41 pm-9:30 am

2 stops34h 49m

Porto

fr. 11/27

12:35 pm-11:19 pm

1 stop15h 44m

$922

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

ma. 7/6

6:30 am-6:55 am

1 stop19h 25m

Porto

ti. 7/21

12:15 pm-11:34 pm

2 stops40h 19m

$926

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

ma. 7/6

6:30 am-6:55 am

1 stop19h 25m

Porto

ma. 7/20

6:00 am-5:00 pm

2 stops40h 00m

$961

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/25

Showing 1-10 of 29 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 July is currently the most expensive (average of $1,258). 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 mai 27, 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
9,753 reviews

Entertainment

7.1

Overall

7.4

Crew

8.1

Boarding

7.7

Comfort

7.3

Food

6.6

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
9,753 reviews
United Airlines
7.4
Good
9,753 reviews

Entertainment

7.1

Overall

7.4

Crew

8.1

Boarding

7.7

Comfort

7.3

Food

6.6

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
11,640 reviews
United Airlines
7.4
Good
9,753 reviews

Entertainment

7.1

Overall

7.4

Crew

8.1

Boarding

7.7

Comfort

7.3

Food

6.6

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
8,007 reviews
United Airlines
7.4
Good
9,753 reviews

Entertainment

7.1

Overall

7.4

Crew

8.1

Boarding

7.7

Comfort

7.3

Food

6.6

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, British Airways, and Lufthansa fly from Greenville to Portugal in about 17h 10m. The time it takes to get you to your destination can typically vary by up to 3h. 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 July is currently the most expensive (average of $1,258). 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 mai 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$509Average$703FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$535Average$939FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$559Average$959FlexibilityNo cancel feeOn-time69%

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