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Cheap flights from Greenville to Porto from $953

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Greenville to Porto departing on 4/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Greenville to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:50 pm - 3:25 pm
GSP
-
OPO
16h 35m
2 stops
Multiple Airlines Logo
11:45 am - 11:56 pm
OPO
-
GSP
17h 11m
2 stops
$953Multiple Airlines
Tue, Apr 14 - Sun, Apr 19
Delta Logo
6:26 pm - 3:25 pm
GSP
-
OPO
15h 59m
2 stops
Delta Logo
5:55 am - 11:56 pm
OPO
-
GSP
23h 01m
2 stops
$960Delta
Tue, Apr 14 - Sun, Apr 19
KLM Logo
6:35 pm - 3:30 pm
GSP
-
OPO
15h 55m
2 stops
KLM Logo
5:00 am - 8:13 pm
OPO
-
GSP
20h 13m
2 stops
$970KLM
Mon, May 11 - Mon, May 18
Lufthansa Logo
7:42 pm - 11:25 pm
GSP
-
OPO
22h 43m
2 stops
Lufthansa Logo
6:00 am - 6:59 pm
OPO
-
GSP
17h 59m
2 stops
$980Lufthansa
Tue, Apr 14 - Sun, Apr 19
Multiple Airlines Logo
5:50 pm - 3:25 pm
GSP
-
OPO
16h 35m
2 stops
Multiple Airlines Logo
11:45 am - 11:56 pm
OPO
-
GSP
17h 11m
2 stops
$982Multiple Airlines
Tue, Apr 14 - Sun, Apr 19
United Airlines Logo
7:35 pm - 3:45 pm
GSP
-
OPO
15h 10m
2 stops
United Airlines Logo
12:35 pm - 7:08 pm
OPO
-
GSP
11h 33m
1 stop
$989United Airlines
Thu, May 14 - Thu, May 21
Delta Logo
10:09 am - 10:40 am
GSP
-
OPO
19h 31m
2 stops
Delta Logo
11:25 am - 11:43 pm
OPO
-
GSP
17h 18m
2 stops
$1,024Delta
Thu, May 14 - Thu, May 21
United Airlines Logo
7:40 pm - 9:45 am
GSP
-
OPO
33h 05m
2 stops
United Airlines Logo
12:15 pm - 5:00 pm
OPO
-
GSP
33h 45m
2 stops
$1,119United Airlines
Mon, Jul 6 - Tue, Jul 21
Multiple Airlines Logo
10:33 am - 9:20 am
GSP
-
OPO
41h 47m
2 stops
Multiple Airlines Logo
2:25 pm - 9:17 pm
OPO
-
GSP
35h 52m
2 stops
$1,129Multiple Airlines
Tue, May 19 - Wed, Aug 5
Air Canada Logo
6:30 am - 7:00 am
GSP
-
OPO
19h 30m
2 stops
Air Canada Logo
12:15 pm - 5:00 pm
OPO
-
GSP
33h 45m
2 stops
$1,135Air Canada
Mon, Jul 6 - Tue, Jul 21

Air Canada flights from Greenville to Porto

Our best Air Canada deals on Greenville to Porto flight tickets
Air Canada
Jul 6
GSP6:30 amGreenville
19h 30m
2 stops
OPO7:00 amPorto
Jul 21
OPO12:15 pmPorto
33h 45m
2 stops
GSP5:00 pmGreenville
$1,135
Air Canada
Jun 9
GSP5:41 pmGreenville
32h 19m
2 stops
OPO7:00 amPorto
Jun 23
OPO12:15 pmPorto
33h 45m
2 stops
GSP5:00 pmGreenville
$1,172

United Airlines flights from Greenville to Porto

Our best United Airlines deals on Greenville to Porto flight tickets
United Airlines
May 14
GSP7:35 pmGreenville
15h 10m
2 stops
OPO3:45 pmPorto
May 21
OPO12:35 pmPorto
11h 33m
1 stop
GSP7:08 pmGreenville
$989
United Airlines
Jul 6
GSP7:40 pmGreenville
33h 05m
2 stops
OPO9:45 amPorto
Jul 21
OPO12:15 pmPorto
33h 45m
2 stops
GSP5:00 pmGreenville
$1,118
United Airlines
Jul 6
GSP7:40 pmGreenville
33h 05m
2 stops
OPO9:45 amPorto
Jul 21
OPO12:15 pmPorto
33h 45m
2 stops
GSP5:00 pmGreenville
$1,119

momondo Fare Finder

 
Customize your flight search to find flights from Greenville to Porto 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 April 1, 2026.
Use the filters below to find and compare flights from Greenville to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Tue 4/14

5:50 pm-3:25 pm

2 stops16h 35m

Porto

Sun 4/19

11:45 am-11:56 pm

2 stops17h 11m

$953

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Tue 4/14

6:26 pm-3:25 pm

2 stops15h 59m

Porto

Sun 4/19

5:55 am-11:56 pm

2 stops23h 01m

$960

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Mon 5/11

6:35 pm-3:30 pm

2 stops15h 55m

Porto

Mon 5/18

5:00 am-8:13 pm

2 stops20h 13m

$970

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Tue 4/14

7:42 pm-11:25 pm

2 stops22h 43m

Porto

Sun 4/19

6:00 am-6:59 pm

2 stops17h 59m

$980

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Tue 4/14

5:50 pm-3:25 pm

2 stops16h 35m

Porto

Sun 4/19

11:45 am-11:56 pm

2 stops17h 11m

$982
Quickest round-trip

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Thu 5/14

7:35 pm-3:45 pm

2 stops15h 10m

Porto

Thu 5/21

12:35 pm-7:08 pm

1 stop11h 33m

$989

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Thu 5/14

10:09 am-10:40 am

2 stops19h 31m

Porto

Thu 5/21

11:25 am-11:43 pm

2 stops17h 18m

$1,024

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Mon 7/6

7:40 pm-9:45 am

2 stops33h 05m

Porto

Tue 7/21

12:15 pm-5:00 pm

2 stops33h 45m

$1,119

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Tue 5/19

10:33 am-9:20 am

2 stops41h 47m

Porto

Wed 8/5

2:25 pm-9:17 pm

2 stops35h 52m

$1,129

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Mon 7/6

6:30 am-7:00 am

2 stops19h 30m

Porto

Tue 7/21

12:15 pm-5:00 pm

2 stops33h 45m

$1,135

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Porto from

How to get the cheapest flight ticket from Greenville to Porto

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 airlines fly to Porto?

United Airlines, Iberia and American Airlines are the top three most popular airlines that fly to Porto from Greenville according to our data. United Airlines is the first choice among our users, with 44% of people opting to fly with this airline when traveling to Porto. Keep in mind that there are 5 different airlines that fly to Porto on a routine basis, so you have a few additional options to choose from.

When to book flights from Greenville to Porto

Are you open to changing your travel dates? Check out the ideal times to fly from Greenville to Porto according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Greenville to Porto (GSP to OPO) flight deals and tips

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

Fastest flight time

15h 10m

Direct flights

None
The fastest flight from Greenville to Porto takes 15h 10m
There are no direct flights from Greenville to Porto. There are no popular flight routes from Greenville to Porto.
Search flight deals

Frequently asked questions about flying from Greenville to Porto

  • How far is Greenville to Porto by plane?

    The straight-line distance from Greenville to Porto is 3915.7 mi. Typically, this will take 15h 10m by plane in normal conditions.

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

    Prices for flights from Greenville Airport to Porto Airport were last updated today.

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Greenville Airport to Porto Airport.

  • What documentation or ID do you need to fly to Porto Airport?

    The required travel and health documents for your Porto Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Porto Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Vila Nova de Gaia
Coimbra
Aveiro
Braga
Matosinhos
Lamego
Esposende
Chaves
Pinhao
Guimarães
Espinho
Arcos de Valdevez
Ponte de Lima
Viseu
Curia
Penafiel
Mesao Frio
Mira
Baiao

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Greenville to Porto. momondo saves you time and could save you money on your trip.

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

Yes. All flights to Porto from Greenville on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Porto from Greenville.

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

Price alerts on flights to Porto from Greenville are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Porto trip

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