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Cheap flights from Greenville to Portugal from $412

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Greenville to Portugal departing on 9/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Find the cheapest flights from Greenville to Portugal

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
11:30 am - 9:45 am
GSP
-
OPO
17h 15m
1 stop
United Airlines Logo
6:00 am - 11:19 pm
OPO
-
GSP
22h 19m
2 stops
$846United Airlines
Fri, Oct 23 - Sat, Nov 7
United Airlines Logo
6:20 am - 9:45 am
GSP
-
OPO
22h 25m
2 stops
United Airlines Logo
6:00 am - 11:19 pm
OPO
-
GSP
22h 19m
2 stops
$850United Airlines
Fri, Oct 23 - Sat, Nov 7
United Airlines Logo
11:30 am - 9:45 am
GSP
-
OPO
17h 15m
1 stop
United Airlines Logo
12:35 pm - 11:19 pm
OPO
-
GSP
15h 44m
1 stop
$855United Airlines
Fri, Oct 23 - Sat, Nov 7
British Airways Logo
5:51 pm - 6:00 pm
GSP
-
LIS
19h 09m
2 stops
British Airways Logo
3:55 pm - 9:54 pm
LIS
-
GSP
33h 59m
2 stops
$879British Airways
Fri, Oct 16 - Sat, Oct 31
Multiple Airlines Logo
7:49 pm - 7:00 am
GSP
-
OPO
30h 11m
2 stops
Multiple Airlines Logo
6:00 am - 5:02 pm
OPO
-
GSP
40h 02m
2 stops
$898Multiple Airlines
Mon, Aug 3 - Fri, Sep 4
Lufthansa Logo
6:30 am - 6:55 am
GSP
-
OPO
19h 25m
1 stop
Lufthansa Logo
6:00 am - 9:35 am
OPO
-
GSP
32h 35m
2 stops
$900Lufthansa
Mon, Aug 3 - Fri, Sep 4
Lufthansa Logo
10:23 am - 10:30 am
GSP
-
LIS
19h 07m
1 stop
Lufthansa Logo
5:05 am - 6:14 pm
LIS
-
GSP
18h 09m
2 stops
$902Lufthansa
Tue, Sep 29 - Thu, Oct 15
United Airlines Logo
11:18 am - 9:20 am
GSP
-
LIS
17h 02m
2 stops
United Airlines Logo
5:05 am - 6:14 pm
LIS
-
GSP
18h 09m
2 stops
$906United Airlines
Tue, Sep 29 - Thu, Oct 15
Air Canada Logo
11:18 am - 7:00 am
GSP
-
OPO
14h 42m
2 stops
Air Canada Logo
11:50 am - 9:35 am
OPO
-
GSP
26h 45m
2 stops
$915Air Canada
Tue, Aug 4 - Thu, Sep 3
Multiple Airlines Logo
10:23 am - 9:20 am
GSP
-
LIS
17h 57m
3 stops
Multiple Airlines Logo
1:00 pm - 9:51 am
LIS
-
GSP
25h 51m
2 stops
$981Multiple Airlines
Tue, Sep 29 - Thu, Oct 15

Air Canada flights from Greenville to Portugal

Our best Air Canada deals on Greenville to Portugal flight tickets
Air Canada
Aug 4
GSP11:18 amGreenville
14h 42m
2 stops
OPO7:00 amPorto
Sep 3
OPO11:50 amPorto
26h 45m
2 stops
GSP9:35 amGreenville
$915
Air Canada
Sep 9
GSP7:00 amGreenville
23h 05m
2 stops
LIS11:05 amLisbon Humberto Delgado
Sep 16
LIS11:25 amLisbon Humberto Delgado
38h 53m
2 stops
GSP9:18 pmGreenville
$943
Air Canada
Jul 4
GSP7:40 pmGreenville
34h 25m
2 stops
LIS11:05 amLisbon Humberto Delgado
Jul 21
LIS1:00 pmLisbon Humberto Delgado
15h 34m
2 stops
GSP11:34 pmGreenville
$1,012

United Airlines flights from Greenville to Portugal

Our best United Airlines deals on Greenville to Portugal flight tickets
United Airlines
Oct 23
GSP11:30 amGreenville
17h 15m
1 stop
OPO9:45 amPorto
Nov 7
OPO6:00 amPorto
22h 19m
2 stops
GSP11:19 pmGreenville
$846
United Airlines
Oct 23
GSP6:20 amGreenville
22h 25m
2 stops
OPO9:45 amPorto
Nov 7
OPO6:00 amPorto
22h 19m
2 stops
GSP11:19 pmGreenville
$850
United Airlines
Oct 23
GSP11:30 amGreenville
17h 15m
1 stop
OPO9:45 amPorto
Nov 7
OPO12:35 pmPorto
15h 44m
1 stop
GSP11:19 pmGreenville
$855

momondo 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, momondo users made 832,500 searches. Data last updated June 6, 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

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Fri 10/23

11:30 am-9:45 am

1 stop17h 15m

Porto

Sat 11/7

6:00 am-11:19 pm

2 stops22h 19m

$846

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Fri 10/23

6:20 am-9:45 am

2 stops22h 25m

Porto

Sat 11/7

6:00 am-11:19 pm

2 stops22h 19m

$850
Quickest round-trip

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Fri 10/23

11:30 am-9:45 am

1 stop17h 15m

Porto

Sat 11/7

12:35 pm-11:19 pm

1 stop15h 44m

$855

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Fri 10/16

5:51 pm-6:00 pm

2 stops19h 09m

Lisbon Humberto Delgado

Sat 10/31

3:55 pm-9:54 pm

2 stops33h 59m

$879

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Mon 8/3

7:49 pm-7:00 am

2 stops30h 11m

Porto

Fri 9/4

6:00 am-5:02 pm

2 stops40h 02m

$898

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Mon 8/3

6:30 am-6:55 am

1 stop19h 25m

Porto

Fri 9/4

6:00 am-9:35 am

2 stops32h 35m

$900

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Tue 9/29

10:23 am-10:30 am

1 stop19h 07m

Lisbon Humberto Delgado

Thu 10/15

5:05 am-6:14 pm

2 stops18h 09m

$902

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Tue 9/29

11:18 am-9:20 am

2 stops17h 02m

Lisbon Humberto Delgado

Thu 10/15

5:05 am-6:14 pm

2 stops18h 09m

$906

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Tue 8/4

11:18 am-7:00 am

2 stops14h 42m

Porto

Thu 9/3

11:50 am-9:35 am

2 stops26h 45m

$915

GreenvilleLisbon

GSP - LIS

GSPLIS

Greenville

Tue 9/29

10:23 am-9:20 am

3 stops17h 57m

Lisbon Humberto Delgado

Thu 10/15

1:00 pm-9:51 am

2 stops25h 51m

$981

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Portugal from

How to get the cheapest flight ticket from Greenville to Portugal

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Portugal?

The cheapest month to fly to Portugal from Greenville is in January. Flight prices, which tend to average around $509, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to Portugal from Greenville during March instead. Flights to Portugal in March, while not as cheap as those in January, still average around $510.

Can stopping save me money on Greenville to Portugal flights?

You could potentially save up to 48% on your flight if you consider stops on a Greenville to Portugal flight.

Cheap Greenville to Portugal flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Greenville to Portugal

Fastest flight time

9h 50m

Direct flights

None
The fastest flight from Greenville to Portugal takes 9h 50m
There are no direct flights from Greenville to Portugal. There are no popular flight routes from Greenville to Portugal.
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Frequently asked questions about flying from Greenville to Portugal

  • When did momondo last update prices for flights from Greenville Airport to Portugal?

    Prices for flights from Greenville Airport to Portugal are refreshed on a daily basis.

  • How many operators does momondo search for flights from Greenville Airport to Portugal?

  • How old do you have to be to fly from Greenville Airport to Portugal?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Greenville Airport to Portugal.

  • What documentation or ID do you need to fly to Portugal?

    The travel and health documents you'll need for your trip to Portugal may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Portugal. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Greenville to Portugal

Compare and see reviews for airlines that fly from Greenville to Portugal with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $509Free CancellationRating
7.1
11,651 reviews
Search American Airlines flights
British AirwaysPriceFrom $535Free CancellationRating
6.7
8,028 reviews
Search British Airways flights
United AirlinesPriceFrom $559Free CancellationRating
7.4
9,775 reviews
Search United Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Greenville to Portugal?

It is quick and easy to find Greenville to Portugal flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Portugal that suits you.

Can I find flights from Greenville to Portugal with flexible booking policies on momondo?

Flights from Greenville to Portugal with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Greenville to Portugal?

momondo provides multiple filters to help you find the best flight to Portugal from Greenville. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Greenville to Portugal right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Greenville to Portugal flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your Portugal trip

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Find better results for your trip to Portugal

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