Cheap Flights from Charleston to Porto

Compare Charleston to Porto flight deals

Find the cheapest month or even day of the year to fly to Porto

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Flight deals from Charleston Airport to Porto Airport

Looking for a cheap last-minute deal or the best return flight from Charleston Airport to Porto Airport? If you want to travel next month, return fares start from Rs304,544. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Charleston to Porto

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Charleston to Porto flights are currently cheapest in July.

Charleston to Porto: Alternative routes

Compare routes from Charleston to Porto below. You may find an airport to fly into that's cheaper, faster, or easier than Porto.

Charleston to Porto: Flight information

The things to know before you go.
Cheapest flight foundRs109,362
Cheapest month to flyJuly

Finding cheap flights from Charleston to Porto: Frequently asked questions

The best price we found for a return flight from Charleston to Porto is Rs304,544. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Charleston to Porto. But we found flights with one or more stops from Rs304,544.
As of April 2026, there are no flights flying from Charleston to Porto.
The cheapest month to fly from Charleston to Porto is usually May.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Charleston Airport to Porto Airport on Monday, 18 May 2026.
No airlines currently offer direct flights between Charleston Airport and Porto Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Porto but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Porto is around 40 days in advance, so don’t leave your flight to the last minute.
Currently, Aeromexico offers the cheapest flight tickets to Porto.

Flying from Charleston International Airport (CHS) to Porto Airport (OPO): what you need to know

  • Porto is four hours ahead of Charleston and follows the UTC+0 timezone.

  • Get to the airport on time so you don't miss your CHS to OPO flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid any last-minute rush.

  • Be prepared for bigger queues during popular months like July. Arriving up to four hours ahead of an international flight and two hours for a domestic departure will help ensure a smooth travel experience.

  • Think about adding a stopover when booking your ticket from Charleston International Airport to Porto Airport. Simply deselect 'Direct flights only' to break up your journey, or perhaps see a new city along the way. Here are some options between CHS and OPO:

    • John F. Kennedy International Airport

    • Newark Liberty International Airport

    • Pearson International Airport

How to find the cheapest flights from Charleston International Airport (CHS) to Porto Airport (OPO)

  • At the moment, Rs109,362 is the cheapest price we've seen for a one-way Charleston International Airport to Porto Airport flight. The best price for a return ticket is Rs304,544. Bear in mind that fares can change due to demand at the time of booking.

  • Don't wait until the last minute. You're more likely to find cheap tickets from CHS to OPO if you book early. Airlines often offer some amazing early bird deals.

  • If you can be flexible with your travel plans, try using the 'Whole month' search function. It'll give you the lowest price in every month when looking for a flight from Charleston International Airport to Porto Airport.

  • Save time searching for cheap flights from CHS to OPO by setting up a Price Alert. We'll send you an email or notification through the app when a lower fare becomes available.

  • Select your preferred arrival and departure times, airlines and number of stops with the filters. Alternatively, sort your results by 'Cheapest' to get the best deals on flights from Charleston International Airport to Porto Airport.

Handy information about Charleston International Airport (CHS)

  • Charleston International Airport maintains a solid on-time record, making delays less likely. Departures from CHS land on schedule 81.5% of the time.

  • To get to Charleston International Airport from central Charleston, it'll take about 30 minutes if you're planning to drive. Of course, this depends on traffic conditions. It's approximately 21 kilometres from the airport to the city centre.

  • The trip on public transport typically takes 3 hours 35 minutes.

  • Taking an early flight from Charleston International Airport to Porto Airport? Avoid the stress of rushing to the airport (and enjoy a little extra shut-eye) by picking one of these stays near CHS:

Arriving at Porto Airport (OPO)

  • If you're landing on a late Charleston International Airport to Porto Airport flight, few things beat the convenience of staying close to the terminal. Grab your bags from the carousel and then be showered and resting soon after at one of these options near OPO:

  • Grab a Porto Airport rental car and discover Porto and beyond with your own wheels. Klass Wagen, Goldcar and Drive & Go are popular providers to choose from here.

  • Get the best deal by reserving your vehicle from Porto Airport about three weeks ahead of your trip.

Getting from Porto Airport (OPO) to central Porto

  • Porto Airport to central Porto has a drive time of about 20 minutes. It's approximately 16 kilometres away.

  • It takes roughly 50 minutes to get there by public transport.

When to fly to Porto Airport (OPO)

  • It's time to pick your dates for your flight from Charleston International Airport to Porto Airport. August is the busiest month to visit Porto. If you're after a more relaxed vibe, go in January.

  • Lock in your flight from Charleston International Airport to Porto Airport for August if you want to visit Porto during its warmest month. Expect temperatures of between 14ºC and 32ºC.

  • If you like cooler conditions, look for a cheap ticket from CHS to OPO in January. Average temperatures are between 3ºC and 14ºC then.

Explore more of Portugal

  • Lisbon is just one of the many places in Portugal waiting to be explored after you've seen Porto. Around 274 kilometres away to the south, popular attractions include Torre de Belem Garden, Estrela At Lisbon - Tram 28 and Archaeological museum of Sao Jorge Castle.

  • Around 274 kilometres south of Porto, Amadora is another essential stop in Portugal. Experience the best of this destination with a visit to Jardim Porta do Viveiro Alfragide, Jardim Caracol do Victor Alfragide and Jardim e estatua Eduardo Jorge.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.