CHS - OPO

$728 Find Cheap Flights from Charleston to Porto - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$728
Typical prices: $848-$971
United Airlines
Fri 11/30Sat 12/15
CHS - OPO • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Charleston and Porto. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to travel
May
Cheapest • 23% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Newark (EWR)
Cheapest • Avg $799 (round-trip)
New York John F Kennedy Intl (JFK)
Shortest trip • 12h 42m (one-way)
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Insights
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Flight Deals

Cheap Flights from Charleston to Porto (CHS-OPO)

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

Recent round-trip flight deals from Charleston to Porto

Mon, Nov 30 - Tue, Dec 15
United Airlines Logo
3:02 pm - 9:30 amCHS  Charleston-OPO Porto
13h 28m2 stops Washington, D.C. Dulles Intl Newark
United Airlines Logo
6:00 am - 9:17 amOPO  Porto-CHS Charleston
32h 17m2 stops Frankfurt am Main Newark
$728United Airlines
Mon, Nov 30 - Tue, Dec 15
United Airlines Logo
3:35 pm - 9:30 amCHS  Charleston-OPO Porto
12h 55m1 stop Newark
United Airlines Logo
12:35 pm - 11:59 pmOPO  Porto-CHS Charleston
16h 24m1 stop Newark
$737United Airlines
Thu, Dec 10 - Thu, Dec 17
Delta Logo
5:22 pm - 3:25 pmCHS  Charleston-OPO Porto
17h 03m2 stops New York John F Kennedy Intl Amsterdam Schiphol
Delta Logo
5:55 am - 6:02 pmOPO  Porto-CHS Charleston
17h 07m2 stops Paris Charles de Gaulle Detroit Metropolitan Wayne County
$806Delta
Thu, Dec 10 - Thu, Dec 17
United Airlines Logo
3:30 pm - 9:30 amCHS  Charleston-OPO Porto
13h 00m1 stop Newark
United Airlines Logo
12:35 pm - 11:59 pmOPO  Porto-CHS Charleston
16h 24m1 stop Newark
$853United Airlines
Mon, Dec 14 - Mon, Dec 21
United Airlines Logo
2:57 pm - 9:30 amCHS  Charleston-OPO Porto
13h 33m2 stops Washington, D.C. Dulles Intl Newark
United Airlines Logo
12:35 pm - 11:59 pmOPO  Porto-CHS Charleston
16h 24m1 stop Newark
$899United Airlines
Mon, Dec 14 - Mon, Dec 21
United Airlines Logo
10:23 am - 9:30 amCHS  Charleston-OPO Porto
18h 07m1 stop Newark
United Airlines Logo
12:35 pm - 11:59 pmOPO  Porto-CHS Charleston
16h 24m1 stop Newark
$912United Airlines
Mon, Dec 14 - Mon, Dec 21
Delta Logo
12:24 pm - 10:35 amCHS  Charleston-OPO Porto
17h 11m2 stops New York John F Kennedy Intl Paris Charles de Gaulle
Delta Logo
6:25 am - 10:27 pmOPO  Porto-CHS Charleston
21h 02m2 stops Paris Charles de Gaulle Atlanta Hartsfield-Jackson
$942Delta
Thu, Dec 10 - Thu, Dec 17
Air Canada Logo
10:23 am - 1:30 pmCHS  Charleston-OPO Porto
22h 07m3 stops Newark Toronto Pearson Intl Lisbon Humberto Delgado
Air Canada Logo
7:00 am - 11:59 pmOPO  Porto-CHS Charleston
21h 59m3 stops Lisbon Humberto Delgado Montreal Pierre Elliott Trudeau Intl Newark
$1,283Air Canada
Fri, Dec 18 - Sun, Dec 27
Multiple Airlines Logo
2:50 pm - 3:25 pmCHS  Charleston-OPO Porto
43h 35m2 stops New York John F Kennedy Intl Istanbul
Multiple Airlines Logo
4:25 pm - 10:38 pmOPO  Porto-CHS Charleston
35h 13m2 stops Istanbul New York John F Kennedy Intl
$1,539Multiple Airlines
Fri, Dec 18 - Sun, Dec 27
United Airlines Logo
10:05 am - 9:30 amCHS  Charleston-OPO Porto
42h 25m2 stops Washington, D.C. Dulles Intl Newark
United Airlines Logo
12:35 pm - 11:59 pmOPO  Porto-CHS Charleston
16h 24m1 stop Newark
$1,638United Airlines
Booking Insights

Price, demand and travel trends for Charleston to Porto flights

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

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

Round-trip flights from Charleston to Porto typically range from $848 to $971. The lowest price found in the past 5 days was $728, on United Airlines.

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Key details for Charleston to Porto flights

Cheapest flight

$728
The most popular month to fly with an average 20% increase in travelers.
Round-trip flight from Charleston to Porto

When to book flights from Charleston to Porto

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

Your Charleston to Porto flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

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

    Three cabin classes are available on flights from Charleston to Porto:

    • Economy Class
    • Premium Economy Class
    • Business Class

  • How long is a flight from Charleston to Porto?

    A nonstop flight from Charleston to Porto takes 00m, covering 3,863 miles.

  • Do I need a passport to fly from Charleston 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.

  • How much should I expect to pay for a Charleston to Porto flight?

    Round-trip flights from Charleston to Porto range from $848 to $971, with an average of $897 over the past 12 months. Anything below $848 counts as a good deal.

  • Have flight prices from Charleston 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 $728 to $1,928. That means the highest observed fare was about 3x higher than the lowest one.

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

    Porto Airport (OPO) hosts 5 major car rental companies, with daily rates averaging $24 for economy cars. Top options include:

    • GREEN MOTION
    • Drive on Holiday
    • Klass Wagen
    • Goldcar Rental SP
    • Sixt

  • Which airports can I use when flying from Charleston to Porto?

    Flights from Charleston to Porto usually depart from Charleston (CHS) and arrive at Porto (OPO).

  • Which airports do connecting flights from Charleston to Porto pass through?

    Connecting flights from Charleston to Porto most commonly pass through:

    • New York John F Kennedy Intl (JFK) - 90% of one-stop connections
    • Newark (EWR) - 10% of one-stop connections

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

    Yes. Flexible dates can save you up to 44% on flights from Charleston to Porto. Tuesday is the cheapest departure day at $848 round-trip on average, while Friday is the most expensive at $1,490, a difference of $642.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Charleston to Porto?

    Flying via Newark (EWR) gives the shortest average 1-stop total travel time at 12h 05m, compared with 12h 42m via New York John F Kennedy Intl (JFK).

  • What is the time difference between Charleston and Porto?

    Porto is 4 hours ahead of Charleston (Western European Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Porto?

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

Your guide to booking Charleston to Porto flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Tuesday departure and avoid flying on Friday. On this route, Tuesday flights average $848, about $642 less than Friday fares (43% savings) based on the last 12 months.
  • If you can choose when to travel, plan your Charleston to Porto trip for May. Fares historically average $694 round-trip in that month - typically $1,009 less than the most expensive month, which is July (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.

    • Ap Aeroporto Porto

More options for your flight from Charleston to Porto

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

Car rentals in Porto
Hotels in Porto
Vacations in Porto