HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Portugal

$402+ 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 2/25. Fares are subject to change and may not be available on all flights or dates of travel.
GSP — LIS
Mar 7 — Mar 141
Sat 3/7
Sat 3/14
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Greenville to Portugal with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 February 5, 2026.

This Flighttix deal was found by Cheapflights users on 2/5. 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 Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/84:00 pm
GSP
-
LIS
2 stops35h 00m
Virgin Atlantic
Tue 2/2411:15 am
LIS
-
GSP
2 stops16h 09m
Virgin Atlantic
Deal found 2/5$488
This United Airlines deal was found by Cheapflights users on 2/5. 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 2/811:49 am
GSP
-
LIS
1 stop15h 21m
United Airlines
Tue 2/245:00 am
LIS
-
GSP
2 stops23h 59m
United Airlines
Deal found 2/5$491
This United Airlines deal was found by Cheapflights users on 2/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/146:00 am
GSP
-
LIS
2 stops22h 20m
United Airlines
Tue 4/211:00 pm
LIS
-
GSP
2 stops34h 59m
United Airlines
Deal found 2/4$496
This Orbitz deal was found by Cheapflights users on 2/4. 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 Orbitz 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
Tue 4/286:00 am
OPO
-
GSP
2 stops21h 45m
Lufthansa
Deal found 2/4$496
This FlightHub deal was found by Cheapflights users on 2/5. 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 4/1410:33 am
GSP
-
OPO
2 stops41h 47m
Multiple Airlines
Tue 4/286:00 am
OPO
-
GSP
2 stops21h 45m
Multiple Airlines
Deal found 2/5$502
This Air France deal was found by Cheapflights users on 2/2. 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 4/141:08 pm
GSP
-
LIS
2 stops16h 37m
Air France
Tue 4/215:35 am
LIS
-
GSP
2 stops17h 05m
Air France
Deal found 2/2$509
This American Airlines deal was found by Cheapflights users on 2/1. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/148:03 am
GSP
-
OPO
2 stops18h 37m
American Airlines
Thu 4/238:20 am
OPO
-
GSP
2 stops19h 43m
American Airlines
Deal found 2/1$514
This American Airlines deal was found by Cheapflights users on 2/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1111:00 am
GSP
-
LIS
2 stops16h 55m
American Airlines
Thu 2/1910:55 am
LIS
-
GSP
2 stops17h 47m
American Airlines
Deal found 2/4$516
This KAYAK deal was found by Cheapflights users on 2/3. 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 KAYAK 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
British Airways
Tue 4/2111:05 am
LIS
-
GSP
1 stop13h 56m
British Airways
Deal found 2/3$523
This United Airlines deal was found by Cheapflights users on 2/1. 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.
Tue 4/142:50 pm
GSP
-
LIS
2 stops15h 55m
United Airlines
Thu 4/2312:20 pm
LIS
-
GSP
1 stop30h 52m
United Airlines
Deal found 2/1$529
This United Airlines deal was found by Cheapflights users on 2/1. 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.
Thu 3/196:52 am
GSP
-
OPO
2 stops27h 53m
United Airlines
Thu 3/266:00 am
OPO
-
GSP
2 stops41h 28m
United Airlines
Deal found 2/1$611
This American Airlines deal was found by Cheapflights users on 2/2. 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 4/148:03 am
GSP
-
OPO
2 stops18h 37m
American Airlines
Sun 4/198:20 am
OPO
-
GSP
2 stops19h 43m
American Airlines
Deal found 2/2$614

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 February 5, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$496
(United Airlines)

One-way from

$402
(United Airlines)

Popular in

June

Cheapest in

February

Average price

$587
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. 26% potential increase in price ($337 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 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 February 5, 2026.
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

Tue 4/14

6:00 am-9:20 am

2 stops22h 20m

Lisbon Humberto Delgado

Tue 4/21

1:00 pm-6:59 pm

2 stops34h 59m

$496

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Tue 4/14

7:42 pm-11:25 pm

2 stops22h 43m

Porto

Tue 4/28

6:00 am-10:45 pm

2 stops21h 45m

$496

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Tue 4/14

10:33 am-9:20 am

2 stops41h 47m

Porto

Tue 4/28

6:00 am-10:45 pm

2 stops21h 45m

$502

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Tue 4/14

1:08 pm-10:45 am

2 stops16h 37m

Lisbon Humberto Delgado

Tue 4/21

5:35 am-5:40 pm

2 stops17h 05m

$509

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Tue 4/14

8:03 am-7:40 am

2 stops18h 37m

Porto

Thu 4/23

8:20 am-11:03 pm

2 stops19h 43m

$514

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Tue 4/14

2:50 pm-11:45 am

2 stops15h 55m

Lisbon Humberto Delgado

Thu 4/23

12:20 pm-2:12 pm

1 stop30h 52m

$529

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Tue 4/21

5:36 pm-9:20 am

2 stops34h 44m

Lisbon Humberto Delgado

Tue 5/12

11:25 am-11:14 am

2 stops28h 49m

$535

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Sun 4/26

5:40 am-8:00 am

2 stops21h 20m

Lisbon Humberto Delgado

Wed 5/13

5:00 am-9:38 pm

2 stops21h 38m

$546

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Wed 2/18

10:40 am-8:10 am

2 stops16h 30m

Lisbon Humberto Delgado

Sun 2/22

11:55 am-7:24 pm

1 stop12h 29m

$566

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Thu 3/19

6:52 am-2:45 pm

2 stops27h 53m

Porto

Thu 3/26

6:00 am-7:28 pm

2 stops41h 28m

$611

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

Showing 1-10 of 17 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 $318). 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 February 5, 2026.
Read through reviews of airlines operating flights from Greenville to Portugal, such as United Airlines, American Airlines, and British Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,236 reviews

Boarding

7.7

Entertainment

7.1

Crew

8.1

Overall

7.4

Food

6.6

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
9,236 reviews
United Airlines
7.4
Good
9,236 reviews

Boarding

7.7

Entertainment

7.1

Crew

8.1

Overall

7.4

Food

6.6

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
7.2
Good
11,222 reviews
United Airlines
7.4
Good
9,236 reviews

Boarding

7.7

Entertainment

7.1

Crew

8.1

Overall

7.4

Food

6.6

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
7,715 reviews
United Airlines
7.4
Good
9,236 reviews

Boarding

7.7

Entertainment

7.1

Crew

8.1

Overall

7.4

Food

6.6

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 United Airlines, Lufthansa, and Air France fly from Greenville to Portugal in about 16h 37m. The time it takes to get you to your destination can typically vary by up to 6h 06m. 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 $318). 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Greenville to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
Charlotte to Heathrow flights
Charlotte to Dublin flights
Charlotte to Leonardo da Vinci/Fiumicino flights
Charlotte to Madrid flights
Charlotte to Charles de Gaulle flights
Charlotte to Athens flights
Charlotte to Frankfurt flights
Charlotte to Orly flights
Charlotte to Barcelona-El Prat flights
Charlotte to Gatwick flights
Charlotte to Lisbon flights
Charlotte to Edinburgh flights
Charlotte to Munich flights
Charlotte to Vicenza flights
Charlotte to London City flights
Charlotte to Florence flights
Charlotte to Bruxelles-National flights
Charlotte to Amsterdam flights
Charleston to Heathrow flights
Charlotte to Keflavik Intl flights
Charleston to Gatwick flights
Charlotte to Malpensa flights
Charlotte to Istanbul flights
Charlotte to Zurich flights
Charlotte to Glasgow Intl flights
Charlotte to Prague flights
Charlotte to Linate flights
Greenville to Heathrow flights
Charleston to Dublin flights
Savannah to Heathrow flights
Charlotte to Frederic Chopin flights
Charlotte to Stansted flights
Charleston to Leonardo da Vinci/Fiumicino flights
Charlotte to Oslo Gardermoen flights
Charlotte to Geneva flights
Charlotte to Sabiha Gokcen flights
Savannah to Dublin flights
Charleston to Charles de Gaulle flights
Greenville to Charles de Gaulle flights
Charleston to Athens flights
Charleston to Edinburgh flights
Charleston to London City flights
Myrtle Beach to Charles de Gaulle flights
Charleston to Vicenza flights
Savannah to Gatwick flights
Charleston to Amsterdam flights
Charleston to Orly flights
Charleston to Madrid flights
Charlotte to Budapest flights
Greenville to Dublin flights

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 February 5, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$535Average$939FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$559Average$954FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$587Average$1,019FlexibilityNo cancel feeOn-time71%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.