Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Greenville to Porto from $368

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 Porto departing on 9/5. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Greenville to Porto

Cheap round-trip flights

British Airways Logo
11:08 am - 4:00 pmGSP-OPO
23h 52m2 stops
British Airways Logo
8:20 am - 8:35 pmOPO-GSP
17h 15m2 stops
$601British Airways
Find Deal
Mon, Jan 12 - Thu, Jan 22
Logo
11:08 am - 11:45 amGSP-OPO
19h 37m2 stops
Logo
8:20 am - 8:35 pmOPO-GSP
17h 15m2 stops
$603
Find Deal
Mon, Jan 12 - Thu, Jan 22
Delta Logo
2:09 pm - 3:30 pmGSP-OPO
20h 21m2 stops
Delta Logo
9:20 am - 10:24 pmOPO-GSP
18h 04m2 stops
$1,493Delta
Find Deal
Sat, Aug 16 - Wed, Aug 20
Delta Logo
5:20 pm - 3:30 pmGSP-OPO
17h 10m2 stops
Delta Logo
9:20 am - 10:24 pmOPO-GSP
18h 04m2 stops
$1,494Delta
Find Deal
Sat, Aug 16 - Thu, Aug 21
Lufthansa Logo
6:28 pm - 9:45 amGSP-OPO
10h 17m1 stop
Lufthansa Logo
12:35 pm - 11:30 pmOPO-GSP
15h 55m1 stop
$1,622Lufthansa
Find Deal
Sat, Aug 16 - Thu, Aug 21
Logo
6:00 am - 11:50 amGSP-OPO
24h 50m1 stop
Logo
7:00 am - 12:15 amOPO-GSP
22h 15m2 stops
$1,731
Find Deal
Mon, Jan 12 - Thu, Jan 22
Lufthansa Logo
6:28 pm - 9:45 amGSP-OPO
10h 17m1 stop
Lufthansa Logo
12:35 pm - 11:30 pmOPO-GSP
15h 55m1 stop
$1,760Lufthansa
Find Deal
Sat, Aug 16 - Wed, Aug 20
Lufthansa Logo
6:28 pm - 9:45 amGSP-OPO
10h 17m1 stop
Lufthansa Logo
10:00 am - 6:52 pmOPO-GSP
13h 52m2 stops
$1,783Lufthansa
Find Deal
Sat, Aug 16 - Thu, Aug 21
United Airlines Logo
2:52 pm - 9:45 amGSP-OPO
13h 53m2 stops
United Airlines Logo
9:50 am - 5:05 pmOPO-GSP
12h 15m1 stop
$2,321United Airlines
Find Deal
Sat, Aug 16 - Thu, Aug 21
Lufthansa Logo
6:28 pm - 9:45 amGSP-OPO
10h 17m1 stop
Lufthansa Logo
6:00 am - 6:52 pmOPO-GSP
17h 52m2 stops
$6,174Lufthansa
Find Deal
Sat, Aug 16 - Wed, Aug 20

United Airlines flights from Greenville to Porto

Our best United Airlines deals on Greenville to Porto flight tickets
United Airlines
Aug 15
GSP2:52 pmGreenville
19h 53m
2 stops
OPO3:45 pmPorto
Aug 21
OPO12:10 pmPorto
37h 51m
2 stops
GSP9:01 pmGreenville
$1,408
Find similar
United Airlines
Aug 15
GSP2:52 pmGreenville
19h 53m
2 stops
OPO3:45 pmPorto
Aug 21
OPO12:10 pmPorto
37h 51m
2 stops
GSP9:01 pmGreenville
$1,409
Find similar
United Airlines
Aug 15
GSP5:45 pmGreenville
11h 00m
1 stop
OPO9:45 amPorto
Aug 21
OPO12:10 pmPorto
37h 51m
2 stops
GSP9:01 pmGreenville
$1,447
Find similar

Delta flights from Greenville to Porto

Our best Delta deals on Greenville to Porto flight tickets
Delta
Aug 16
GSP2:09 pmGreenville
20h 21m
2 stops
OPO3:30 pmPorto
Aug 20
OPO9:20 amPorto
18h 04m
2 stops
GSP10:24 pmGreenville
$1,493
Find similar
Delta
Aug 16
GSP5:20 pmGreenville
17h 10m
2 stops
OPO3:30 pmPorto
Aug 21
OPO9:20 amPorto
18h 04m
2 stops
GSP10:24 pmGreenville
$1,494
Find similar

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 August 6, 2025.
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

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Mon 1/12

11:08 am-4:00 pm

2 stops23h 52m

Porto

Thu 1/22

8:20 am-8:35 pm

2 stops17h 15m

$601

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Mon 1/12

11:08 am-11:45 am

2 stops19h 37m

Porto

Thu 1/22

8:20 am-8:35 pm

2 stops17h 15m

$603

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Sat 8/16

2:09 pm-3:30 pm

2 stops20h 21m

Porto

Wed 8/20

9:20 am-10:24 pm

2 stops18h 04m

$1,493

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Sat 8/16

5:20 pm-3:30 pm

2 stops17h 10m

Porto

Thu 8/21

9:20 am-10:24 pm

2 stops18h 04m

$1,494

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Sat 8/16

6:28 pm-9:45 am

1 stop10h 17m

Porto

Thu 8/21

12:35 pm-11:30 pm

1 stop15h 55m

$1,622

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Mon 1/12

6:00 am-11:50 am

1 stop24h 50m

Porto

Thu 1/22

7:00 am-12:15 am

2 stops22h 15m

$1,731

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Sat 8/16

6:28 pm-9:45 am

1 stop10h 17m

Porto

Wed 8/20

12:35 pm-11:30 pm

1 stop15h 55m

$1,760

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Sat 8/16

6:28 pm-9:45 am

1 stop10h 17m

Porto

Thu 8/21

10:00 am-6:52 pm

2 stops13h 52m

$1,783

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Sat 8/16

2:52 pm-9:45 am

2 stops13h 53m

Porto

Thu 8/21

9:50 am-5:05 pm

1 stop12h 15m

$2,321

GreenvillePorto

GSP - OPO

GSPOPO

Greenville

Sat 8/16

6:28 pm-9:45 am

1 stop10h 17m

Porto

Wed 8/20

6:00 am-6:52 pm

2 stops17h 52m

$6,174

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
1
2

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 is the cheapest day to depart on your flight to Porto?

The cheapest day to depart on your flight to Porto is on a Tuesday when prices can be found for as low as $658. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Sunday because tickets tend to average around $1,207. These prices are subject to change though, so be sure to set up a Price Alert for flights to Porto.

What is the cheapest time of day to depart on your flight to Porto?

At noon is the cheapest time of day to fly from Greenville to Porto when you can find flight prices for as low as $658. Flying to Porto at noon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,184 on average. Flights to Porto from Greenville in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

Best Price Found

$368

Fastest flight time

10h 17m

Direct flights

None

Airports in Porto

1 airport
The best one-way flight to Porto from Greenville in the past 72 hours is $368. The best round-trip flight deal from Greenville to Porto found on momondo in the last 72 hours is $601.
The fastest flight from Greenville to Porto takes 10h 17m
There are no direct flights from Greenville to Porto. Popular non-direct route for this connection is Greenville Airport - Porto Airport.
There is 1 airport near Porto: Porto (OPO)
Search flight deals

  • How far is Greenville to Porto by plane?

    The straight-line distance from Greenville to Porto is 3915.7 mi. Typically, this will take 10h 17m 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 many operators does momondo search for flights from Greenville Airport to Porto Airport?

  • 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.

  • What is the most popular airline from Greenville to Porto?

Best airlines flying from Greenville to Porto

Compare and see reviews for airlines that fly from Greenville to Porto with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $577Free CancellationRating
8.0
7,985 reviews
Search Delta flights
United AirlinesPriceFrom $751Free CancellationRating
7.4
8,916 reviews
Search United Airlines flights

Traveling to a place near Porto?

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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Mon 8/11
Mon 8/18
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Portugal