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$462+ 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 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
GSP — LIS
May 17 — May 241
Sat 5/17
Sat 5/24
1 adult, Economy
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Cheap flight deals from Greenville to Portugal

Keep the following information in mind while searching for Greenville to Portugal flight deals. Data was last updated May 12, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$614
(United Airlines)

One-way from

$462
(Booking.com)

Popular in

June

Cheapest in

November

Average price

$1,157
Provider with most accurate pricing for Greenville-Lisbon Humberto Delgado flight deals.
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Provider most trusted by Cheapflights users for Greenville-Lisbon Humberto Delgado flights.
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From Greenville to Portugal
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One-way flight from Greenville to Portugal
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Highest demand for flights based on searches. 27% potential increase in price ($364 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($54 potential savings vs. average RT price).
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Average for round-trip flights in May 2025
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Find 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 May 12, 2025.

This United Airlines deal was found by Cheapflights users on 5/12. 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.
Sat 10/255:34 pmGSP - LIS
2 stops35h 46mUnited Airlines
Wed 11/1210:15 amLIS - GSP
2 stops15h 56mUnited Airlines
Deal found 5/12$614
This Ovago deal was found by Cheapflights users on 5/11. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/281:14 pmGSP - LIS
1 stop16h 01mBritish Airways
Mon 11/106:35 pmLIS - GSP
2 stops30h 58mBritish Airways
Deal found 5/11$648
This United Airlines deal was found by Cheapflights users on 5/11. 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.
Fri 10/316:46 amGSP - OPO
2 stops22h 44mUnited Airlines
Sun 11/96:00 amOPO - GSP
2 stops20h 11mUnited Airlines
Deal found 5/11$706
This Justfly.com deal was found by Cheapflights users on 5/11. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/148:15 amGSP - LIS
2 stops20h 05mAir Canada
Sat 10/2512:55 pmLIS - GSP
2 stops30h 15mAir Canada
Deal found 5/11$723
This American Airlines deal was found by Cheapflights users on 5/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/251:14 pmGSP - LIS
1 stop15h 51mAmerican Airlines
Wed 11/1211:15 amLIS - GSP
1 stop11h 19mAmerican Airlines
Deal found 5/11$728
This Air Canada deal was found by Cheapflights users on 5/11. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1310:27 amGSP - OPO
3 stops17h 53mMultiple Airlines
Thu 8/2112:10 pmOPO - GSP
2 stops28h 46mMultiple Airlines
Deal found 5/11$765
This FlightHub deal was found by Cheapflights users on 5/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/146:03 amGSP - LIS
2 stops22h 17mMultiple Airlines
Sat 9/2012:15 pmLIS - GSP
2 stops39h 43mMultiple Airlines
Deal found 5/11$974
This Air Canada deal was found by Cheapflights users on 5/11. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1310:27 amGSP - OPO
3 stops17h 53mAir Canada
Thu 8/2110:00 amOPO - GSP
3 stops17h 58mAir Canada
Deal found 5/11$987
This Gurufare deal was found by Cheapflights users on 5/11. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/142:51 pmGSP - LIS
1 stop14h 39mLufthansa
Sat 9/204:15 pmLIS - GSP
2 stops35h 43mLufthansa
Deal found 5/11$988

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 May 12, 2025.
Use the filters below to find and compare flights from Greenville to Portugal that are best for you.

Fly from

Greenville

Fly to

Portugal

Route

Depart

Return

Price

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Sat 10/25

5:34 pm-10:20 am

2 stops35h 46m

Lisbon Humberto Delgado

Wed 11/12

10:15 am-9:11 pm

2 stops15h 56m

$614

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Tue 10/28

1:14 pm-9:15 am

1 stop16h 01m

Lisbon Humberto Delgado

Mon 11/10

6:35 pm-8:33 pm

2 stops30h 58m

$648

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Fri 10/31

6:46 am-9:30 am

2 stops22h 44m

Porto

Sun 11/9

6:00 am-9:11 pm

2 stops20h 11m

$706

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Tue 10/14

8:15 am-9:20 am

2 stops20h 05m

Lisbon Humberto Delgado

Sat 10/25

12:55 pm-2:10 pm

2 stops30h 15m

$723

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Sat 10/25

1:14 pm-10:05 am

1 stop15h 51m

Lisbon Humberto Delgado

Wed 11/12

11:15 am-5:34 pm

1 stop11h 19m

$728

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Wed 8/13

10:27 am-9:20 am

3 stops17h 53m

Porto

Thu 8/21

12:10 pm-11:56 am

2 stops28h 46m

$765

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Sun 9/14

6:03 am-9:20 am

2 stops22h 17m

Lisbon Humberto Delgado

Sat 9/20

12:15 pm-10:58 pm

2 stops39h 43m

$974

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Wed 8/13

10:27 am-9:20 am

3 stops17h 53m

Porto

Thu 8/21

10:00 am-10:58 pm

3 stops17h 58m

$987

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Sun 9/14

2:51 pm-10:30 am

1 stop14h 39m

Lisbon Humberto Delgado

Sat 9/20

4:15 pm-10:58 pm

2 stops35h 43m

$988

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Wed 10/15

6:03 am-9:20 am

2 stops22h 17m

$462

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/11

Showing 1-10 of 15 results
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 $612). Flying from Greenville to Portugal in June is currently the most expensive (average of $1,169). 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.

What is the cheapest time of day to fly from GSP to PT?

Find hourly flight availability from Greenville to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 12, 2025.

When flying from Greenville to Portugal, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Portugal by month

Plan your trip to Portugal by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Portugal ranges from 0.2 - 4.8 inches per month. December is typically the wettest month, when rainfall can reach 4.8 in. July is typically the driest time to visit Portugal when rainfall is around 0.2 in.

Temperature in Portugal by month

Plan your trip to Portugal by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Portugal, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

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 May 12, 2025.
Peruse reviews from past customers who have flown with United Airlines, Brussels Airlines and American Airlines from Greenville to Portugal to help guide your decision. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,724 reviews

Comfort

7.3

Boarding

7.7

Overall

7.4

Crew

8.1

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,724 reviews
United Airlines
7.4
Good
8,724 reviews

Comfort

7.3

Boarding

7.7

Overall

7.4

Crew

8.1

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Brussels Airlines
7.3
Good
347 reviews
United Airlines
7.4
Good
8,724 reviews

Comfort

7.3

Boarding

7.7

Overall

7.4

Crew

8.1

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,724 reviews

Comfort

7.3

Boarding

7.7

Overall

7.4

Crew

8.1

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Air Canada
7.0
Good
9,328 reviews
United Airlines
7.4
Good
8,724 reviews

Comfort

7.3

Boarding

7.7

Overall

7.4

Crew

8.1

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Lufthansa
6.7
Okay
7,070 reviews
United Airlines
7.4
Good
8,724 reviews

Comfort

7.3

Boarding

7.7

Overall

7.4

Crew

8.1

Entertainment

7.1

Food

6.6

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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.

  • What are the cheapest airlines to fly from Greenville to Portugal one-way?

    The cheapest airlines for a one-way flight from Greenville to Portugal are Air Canada ($462), United Airlines ($466), and British Airways ($579).

  • 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 $612). Flying from Greenville to Portugal in June is currently the most expensive (average of $1,169). 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

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Top 4 airlines flying from Greenville to Portugal

Discover the top 4 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 May 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$550Average$790FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$600Average$949FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$604Average$1,016FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$676Average$1,176FlexibilityNo cancel feeOn-time71%

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