Which airports can I use when flying from Greenville to Porto?

Flights from Greenville to Porto usually depart from Greenville (GSP) and arrive at Porto (OPO).

What cabin classes can I book on flights from Greenville to Porto?

Only Economy Class is available on flights from Greenville to Porto.

Can I save money by using flexible dates for flights from Greenville to Porto?

Yes. Being flexible with your travel dates can save you up to 18% on the Greenville to Porto route. Tuesday is the cheapest departure day at $831 round-trip on average, while Wednesday is the most expensive at $1,007, a difference of $176. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

What popular places can I visit in Porto?

Some of the most popular sights in Porto are Ribeira, Ribeira Square and Mercado do Bolhão. These are among the most viewed places in Porto on KAYAK.

Do I need a passport to fly from Greenville to Porto?

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

Have flight prices from Greenville to Porto changed much recently?

Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $639 to $2,336. That means the highest observed fare was about 4x higher than the lowest one.

What is the time difference between Greenville and Porto?

Porto is 5 hours ahead of Greenville (Western European Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

What car rental options are available at Porto Airport (OPO)?

Porto Airport (OPO) hosts 5 major car rental companies, with daily rates starting from around $2 for economy cars. Top options include: • Klass Wagen • Drive on Holiday • GREEN MOTION • Goldcar Rental SP • SURPRICE CAR RENTAL

What is the cheapest airline to fly from Greenville to Porto?

Delta ($639) and United Airlines ($706) are the cheapest airlines to fly round-trip from Greenville to Porto according to KAYAK data over the last 5 days.

$639 CHEAP FLIGHTS from Greenville to Porto (GSP - OPO)

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Cheapest round-trip

$639

Typical prices: $831-$941

Delta

Mon 10/29Mon 11/5

GSP - OPO • 2 stops

When to travel

March

Cheapest • 27% price drop

August

Most popular

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Flight Deals

Cheap Flights from Greenville to Porto (GSP-OPO)

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Recent round-trip flight deals from Greenville to Porto

Thu, Oct 29 - Thu, Nov 5

7:20 am - 10:35 amGSP Greenville-OPO Porto

23h 15m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle

10:15 am - 8:21 pmOPO Porto-GSP Greenville

15h 06m2 stops New York John F Kennedy Intl Atlanta Hartsfield-Jackson

$639Delta

Thu, Oct 29 - Thu, Nov 5

11:51 am - 9:30 amGSP Greenville-OPO Porto

17h 39m1 stop Newark

6:00 am - 9:30 amOPO Porto-GSP Greenville

32h 30m2 stops Frankfurt am Main Chicago O'Hare Intl

$706United Airlines

Mon, Oct 12 - Mon, Oct 19

6:53 pm - 7:00 amGSP Greenville-OPO Porto

31h 07m2 stops Newark Montreal Pierre Elliott Trudeau Intl

12:10 pm - 9:17 pmOPO Porto-GSP Greenville

38h 07m2 stops Frankfurt am Main Chicago O'Hare Intl

$766United Airlines

Mon, Oct 12 - Mon, Oct 19

4:00 pm - 9:45 amGSP Greenville-OPO Porto

12h 45m1 stop Newark

12:10 pm - 9:17 pmOPO Porto-GSP Greenville

38h 07m2 stops Frankfurt am Main Chicago O'Hare Intl

$788United Airlines

Mon, Dec 7 - Fri, Dec 11

12:15 pm - 9:30 amGSP Greenville-OPO Porto

16h 15m1 stop Newark

6:00 am - 11:30 pmOPO Porto-GSP Greenville

46h 30m3 stops Frankfurt am Main Toronto Pearson Intl Newark

$1,079United Airlines

Mon, Dec 7 - Fri, Dec 11

12:15 pm - 9:30 amGSP Greenville-OPO Porto

16h 15m1 stop Newark

6:00 am - 8:59 pmOPO Porto-GSP Greenville

19h 59m2 stops Frankfurt am Main Chicago O'Hare Intl

$1,080United Airlines

Thu, Oct 29 - Thu, Nov 5

11:51 am - 9:30 amGSP Greenville-OPO Porto

17h 39m1 stop Newark

12:35 pm - 11:17 amOPO Porto-GSP Greenville

27h 42m1 stop Newark

$1,121Brussels Airlines

Mon, Oct 12 - Mon, Oct 19

6:20 am - 7:00 amGSP Greenville-OPO Porto

19h 40m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl

9:00 am - 11:13 pmOPO Porto-GSP Greenville

19h 13m3 stops Lisbon Humberto Delgado Montreal Pierre Elliott Trudeau Intl Newark

$2,336Multiple Airlines

Recent last minute flight deals from Greenville to Porto

Thu, Sep 17 - Mon, Sep 28

8:29 pm - 9:45 amGSP Greenville-OPO Porto

32h 16m1 stop Newark

7:20 pm - 9:58 amOPO Porto-GSP Greenville

43h 38m2 stops Zurich Chicago O'Hare Intl

$941SWISS

Thu, Sep 17 - Mon, Sep 28

7:47 pm - 9:45 amGSP Greenville-OPO Porto

32h 58m2 stops Washington, D.C. Dulles Intl Newark

6:00 am - 1:33 pmOPO Porto-GSP Greenville

36h 33m2 stops Frankfurt am Main Chicago O'Hare Intl

$1,011United Airlines

Thu, Sep 17 - Mon, Sep 28

5:45 am - 8:30 amGSP Greenville-OPO Porto

21h 45m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle

5:00 am - 9:50 pmOPO Porto-GSP Greenville

21h 50m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$1,056Delta

Thu, Sep 17 - Mon, Sep 28

4:00 pm - 9:45 amGSP Greenville-OPO Porto

12h 45m1 stop Newark

12:10 pm - 7:00 pmOPO Porto-GSP Greenville

35h 50m2 stops Frankfurt am Main Washington, D.C. Dulles Intl

$1,089United Airlines

Thu, Sep 17 - Mon, Sep 28

10:25 am - 9:45 amGSP Greenville-OPO Porto

18h 20m2 stops Washington, D.C. Dulles Intl Newark

12:10 pm - 7:00 pmOPO Porto-GSP Greenville

35h 50m2 stops Frankfurt am Main Washington, D.C. Dulles Intl

$1,093United Airlines

Thu, Sep 17 - Mon, Sep 28

7:00 am - 6:55 amGSP Greenville-OPO Porto

18h 55m1 stop Newark

7:20 pm - 9:58 amOPO Porto-GSP Greenville

43h 38m2 stops Zurich Chicago O'Hare Intl

$1,095Multiple Airlines

Thu, Sep 17 - Mon, Sep 28

8:29 pm - 9:45 amGSP Greenville-OPO Porto

32h 16m1 stop Newark

7:20 pm - 9:58 amOPO Porto-GSP Greenville

43h 38m2 stops Zurich Chicago O'Hare Intl

$1,102SWISS

Thu, Sep 17 - Mon, Sep 28

8:29 pm - 9:45 amGSP Greenville-OPO Porto

32h 16m1 stop Newark

7:20 pm - 9:58 amOPO Porto-GSP Greenville

43h 38m2 stops Zurich Chicago O'Hare Intl

$1,118SWISS

Thu, Sep 17 - Mon, Sep 28

11:30 am - 11:15 amGSP Greenville-OPO Porto

18h 45m2 stops Newark Frankfurt am Main

7:20 pm - 9:58 amOPO Porto-GSP Greenville

43h 38m2 stops Zurich Chicago O'Hare Intl

$1,172Multiple Airlines

Thu, Sep 17 - Mon, Sep 28

10:25 am - 11:15 amGSP Greenville-OPO Porto

19h 50m2 stops Washington, D.C. Dulles Intl Frankfurt am Main

7:20 pm - 9:58 amOPO Porto-GSP Greenville

43h 38m2 stops Zurich Chicago O'Hare Intl

$1,175Multiple Airlines

Booking Insights

Price, demand and travel trends for Greenville to Porto flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights from Greenville to Porto with more confidence.

Prices

Airlines

How much is a round-trip flight from Greenville to Porto?

Round-trip flights from Greenville to Porto start at $639. Prices are below average for this route right now, with typical round-trip fares ranging from $831 to $941. The lowest price found in the past 5 days was $639 on Delta.

Find deals

Low season	January
High season	August

Most popular time to fly with an average 18% increase in price.

When to book flights from Greenville to Porto

Are your dates flexible? Find out the best times to travel from Greenville to Porto based on our flight data from the last year. Discover the cheapest month and even day to fly.

Estimated round-trip price

KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Which airports can I use when flying from Greenville to Porto?
Flights from Greenville to Porto usually depart from Greenville (GSP) and arrive at Porto (OPO).
What cabin classes can I book on flights from Greenville to Porto?
Only Economy Class is available on flights from Greenville to Porto.
Can I save money by using flexible dates for flights from Greenville to Porto?
Yes. Being flexible with your travel dates can save you up to 18% on the Greenville to Porto route. Tuesday is the cheapest departure day at $831 round-trip on average, while Wednesday is the most expensive at $1,007, a difference of $176. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.
What popular places can I visit in Porto?
Some of the most popular sights in Porto are Ribeira, Ribeira Square and Mercado do Bolhão. These are among the most viewed places in Porto on KAYAK.
Do I need a passport to fly from Greenville to Porto?
Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.
Have flight prices from Greenville to Porto changed much recently?
Yes. Based on fares seen in the past 5 days, round-trip prices on this route showed a wide range, from about $639 to $2,336. That means the highest observed fare was about 4x higher than the lowest one.
What is the time difference between Greenville and Porto?
Porto is 5 hours ahead of Greenville (Western European Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.
What car rental options are available at Porto Airport (OPO)?
Porto Airport (OPO) hosts 5 major car rental companies, with daily rates starting from around $2 for economy cars. Top options include:
• Klass Wagen
• Drive on Holiday
• GREEN MOTION
• Goldcar Rental SP
• SURPRICE CAR RENTAL

If your dates can be flexible, aim for a Tuesday departure instead of Wednesday. On this route, Tuesday flights average $831 - about $176 less than Wednesday (17% savings) based on the last 12 months.
If you can choose when to travel, plan your Greenville to Porto trip for March. Fares historically average $619 round-trip in that month - typically $388 less than the most expensive month, which is August (based on the last 12 months).
If you're arriving late at night and need somewhere to stay, check out these hotels close to Porto Airport.
- Opo Hotel Porto Aeroporto

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GSP - OPO

$639 Find Cheap Flights from Greenville to Porto - Compare and Save

Everything you should know

Cheap Flights from Greenville to Porto (GSP-OPO)

Recent round-trip flight deals from Greenville to Porto

Recent one-way flight deals from Greenville to Porto

Recent last minute flight deals from Greenville to Porto

Price, demand and travel trends for Greenville to Porto flights

How much is a round-trip flight from Greenville to Porto?

What is the cheapest airline to fly from Greenville to Porto?

Key details for Greenville to Porto flights

Low season

High season

When to book flights from Greenville to Porto

Your Greenville to Porto flight questions, answered

Your guide to booking Greenville to Porto flights

More options for your flight from Greenville to Porto

Complete your trip to Porto with a hotel stay or car rental

Information on your arrival and departure airports

Cabin class types available on flights from Greenville to Porto

Find direct flights to and from Greenville and Porto

Flights from domestic origins to Porto

Flights to other popular destinations