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Portugal

$707+ Cheap flights from Greenville (GSP) to Portugal

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/4. Fares are subject to change and may not be available on all flights or dates of travel.
GSP — LIS
May 4 — May 111
Mon 5/4
Mon 5/11
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 April 4, 2026.

This United Airlines deal was found by Cheapflights users on 3/30. 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.
Fri 12/410:21 am
GSP
-
LIS
1 stop18h 54m
United Airlines
Tue 12/811:20 am
LIS
-
GSP
2 stops34h 40m
United Airlines
Deal found 3/30$707
This FlightHub deal was found by Cheapflights users on 4/1. 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.
Tue 4/1412:07 pm
GSP
-
LIS
2 stops18h 38m
Multiple Airlines
Tue 4/2111:25 am
LIS
-
GSP
2 stops40h 20m
Multiple Airlines
Deal found 4/1$721
This American Airlines deal was found by Cheapflights users on 3/31. 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.
Tue 4/146:28 pm
GSP
-
LIS
1 stop9h 37m
American Airlines
Tue 4/216:35 am
LIS
-
GSP
2 stops15h 15m
American Airlines
Deal found 3/31$722
This Delta deal was found by Cheapflights users on 4/4. 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.
Tue 4/148:50 am
GSP
-
LIS
2 stops19h 00m
Delta
Tue 4/215:00 am
LIS
-
GSP
2 stops19h 44m
Delta
Deal found 4/4$723
This Delta deal was found by Cheapflights users on 4/1. 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 4/296:26 pm
GSP
-
LIS
2 stops19h 19m
Delta
Wed 5/65:00 am
LIS
-
GSP
2 stops22h 46m
Delta
Deal found 4/1$724
This United Airlines deal was found by Cheapflights users on 3/31. 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 4/510:33 am
GSP
-
LIS
1 stop18h 57m
United Airlines
Tue 4/2111:25 am
LIS
-
GSP
2 stops38h 22m
United Airlines
Deal found 3/31$752
This BusinessClass deal was found by Cheapflights users on 4/4. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1411:01 am
GSP
-
LIS
1 stop17h 04m
British Airways
Tue 4/2111:05 am
LIS
-
GSP
1 stop11h 42m
British Airways
Deal found 4/4$760
This United Airlines deal was found by Cheapflights users on 3/31. 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 12/77:00 am
GSP
-
OPO
2 stops27h 15m
United Airlines
Thu 12/106:00 am
OPO
-
GSP
2 stops20h 11m
United Airlines
Deal found 3/31$764
This Delta deal was found by Cheapflights users on 4/3. 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.
Tue 4/141:08 pm
GSP
-
OPO
2 stops21h 17m
Delta
Sun 4/195:00 am
OPO
-
GSP
2 stops22h 46m
Delta
Deal found 4/3$953
This KAYAK deal was found by Cheapflights users on 3/31. 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
Sun 4/196:00 am
OPO
-
GSP
2 stops17h 59m
Lufthansa
Deal found 3/31$980
This United Airlines deal was found by Cheapflights users on 4/1. 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 7/67:40 pm
GSP
-
OPO
2 stops33h 05m
United Airlines
Tue 7/2112:15 pm
OPO
-
GSP
2 stops33h 45m
United Airlines
Deal found 4/1$1,118
This Air France deal was found by Cheapflights users on 4/1. 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.
Sat 5/161:09 pm
GSP
-
OPO
2 stops14h 21m
Multiple Airlines
Sat 5/235:00 am
OPO
-
GSP
2 stops20h 13m
Multiple Airlines
Deal found 4/1$1,153

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 April 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$721
(FlightHub)

One-way from

$592
(United Airlines)

Popular in

July

Cheapest in

February

Average price

$847
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. 17% potential increase in price ($203 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($36 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 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 April 4, 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

Wed 4/29

6:26 pm-6:45 pm

2 stops19h 19m

Lisbon Humberto Delgado

Wed 5/6

5:00 am-10:46 pm

2 stops22h 46m

$724

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Tue 4/14

6:26 pm-6:45 pm

2 stops19h 19m

Lisbon Humberto Delgado

Tue 4/21

5:00 am-7:44 pm

2 stops19h 44m

$727

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Mon 8/3

7:40 pm-10:30 am

1 stop9h 50m

Lisbon Humberto Delgado

Wed 8/19

10:25 am-2:19 pm

2 stops32h 54m

$912

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Sun 8/2

6:10 pm-8:00 am

1 stop32h 50m

Lisbon Humberto Delgado

Tue 8/18

11:55 am-9:27 am

2 stops26h 32m

$922

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Tue 4/14

1:08 pm-3:25 pm

2 stops21h 17m

Porto

Sun 4/19

5:00 am-10:46 pm

2 stops22h 46m

$953

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Thu 7/30

10:30 am-10:30 am

1 stop19h 00m

Lisbon Humberto Delgado

Sat 8/15

11:25 am-9:43 am

2 stops27h 18m

$1,025

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Fri 7/31

7:40 pm-11:05 am

2 stops34h 25m

Lisbon Humberto Delgado

Mon 8/10

11:25 am-9:17 pm

2 stops38h 52m

$1,045
Quickest round-trip

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Sat 7/4

7:40 pm-10:35 am

1 stop9h 55m

Lisbon Humberto Delgado

Thu 7/16

12:20 pm-7:04 pm

1 stop11h 44m

$1,085

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Mon 6/8

10:30 am-10:30 am

1 stop19h 00m

Lisbon Humberto Delgado

Mon 6/22

1:00 pm-10:37 am

3 stops26h 37m

$1,114

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Sun 5/17

7:52 am-9:05 am

1 stop20h 13m

Lisbon Humberto Delgado

Sun 5/24

7:20 am-7:54 pm

2 stops17h 34m

$1,135

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/1

Showing 1-10 of 17 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 $296). 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 April 4, 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
9,542 reviews

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Boarding

7.7

Comfort

7.3

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
9,542 reviews
United Airlines
7.4
Good
9,542 reviews

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Boarding

7.7

Comfort

7.3

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
11,558 reviews
United Airlines
7.4
Good
9,542 reviews

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Boarding

7.7

Comfort

7.3

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
7,850 reviews
United Airlines
7.4
Good
9,542 reviews

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Boarding

7.7

Comfort

7.3

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 Delta fly from Greenville to Portugal in about 17h 04m. The time it takes to get you to your destination can typically vary by up to 4h 13m. 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 $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

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 April 4, 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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