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Cheap Flights from Atlanta to Porto

Your route at a glance

Cheapest dealر.ق.‏ 1,687
Cheapest monthJanuary
Most popular airlineKLM

Compare Atlanta to Porto flight deals

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

Book the best Porto fare with no extra fees

Flight deals from Atlanta to Porto

Looking for a cheap last-minute deal or the best return flight from Atlanta to Porto? Find the lowest prices on one-way and return tickets right here.
Porto.ر.ق.‏ 788 per passenger.Departing Wed, 4 Feb.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Atlanta Hartsfield-Jackson on Wed, 4 Feb, arriving in Porto.Price includes taxes and charges.From ر.ق.‏ 788, select.
Porto.ر.ق.‏ 887 per passenger.Departing Thu, 22 Jan.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Atlanta Hartsfield-Jackson on Thu, 22 Jan, arriving in Porto.Price includes taxes and charges.From ر.ق.‏ 887, select.
Porto.ر.ق.‏ 1,012 per passenger.Departing Fri, 13 Mar.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Atlanta Hartsfield-Jackson on Fri, 13 Mar, arriving in Porto.Price includes taxes and charges.From ر.ق.‏ 1,012, select.
Porto.ر.ق.‏ 1,430 per passenger.Departing Tue, 1 Sep.One-way flight with jetBlue.Outbound indirect flight with jetBlue, departs from Atlanta Hartsfield-Jackson on Tue, 1 Sep, arriving in Porto.Price includes taxes and charges.From ر.ق.‏ 1,430, select.
Porto.ر.ق.‏ 1,449 per passenger.Departing Wed, 19 Aug.One-way flight with jetBlue.Outbound indirect flight with jetBlue, departs from Atlanta Hartsfield-Jackson on Wed, 19 Aug, arriving in Porto.Price includes taxes and charges.From ر.ق.‏ 1,449, select.
Porto.ر.ق.‏ 1,678 per passenger.Departing Thu, 16 Apr.One-way flight with WestJet.Outbound indirect flight with WestJet, departs from Atlanta Hartsfield-Jackson on Thu, 16 Apr, arriving in Porto.Price includes taxes and charges.From ر.ق.‏ 1,678, select.
Porto.ر.ق.‏ 1,683 per passenger.Departing Sun, 10 May.One-way flight with Lufthansa.Outbound indirect flight with Lufthansa, departs from Atlanta Hartsfield-Jackson on Sun, 10 May, arriving in Porto.Price includes taxes and charges.From ر.ق.‏ 1,683, select.
Porto.ر.ق.‏ 1,894 per passenger.Departing Sat, 27 Jun.One-way flight with jetBlue.Outbound indirect flight with jetBlue, departs from Atlanta Hartsfield-Jackson on Sat, 27 Jun, arriving in Porto.Price includes taxes and charges.From ر.ق.‏ 1,894, select.

Find the cheapest month to fly from Atlanta to Porto

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Atlanta to Porto flights are currently cheapest in February.
Dec
from ر.ق.‏ 2,021
Jan
from ر.ق.‏ 887
Feb
from ر.ق.‏ 788
Mar
from ر.ق.‏ 1,012
Apr
from ر.ق.‏ 1,678
May
from ر.ق.‏ 1,683
Jun
from ر.ق.‏ 1,894
Jul
Find prices
Aug
from ر.ق.‏ 1,449
Sep
from ر.ق.‏ 1,430
Oct
Find prices
Nov
Find prices

Atlanta to Porto: Alternative routes

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

Finding cheap flights from Atlanta to Porto: Frequently asked questions

The best price we found for a return flight from Atlanta to Porto is ر.ق.‏ 1,687. 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 Atlanta to Porto. But we found flights with one stop from ر.ق.‏ 1,687.
As of December 2025, there are no flights flying from Atlanta to Porto.
The cheapest month to fly from Atlanta to Porto is usually January.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Atlanta to Porto Airport on Wednesday, 21 January 2026.
No airlines currently offer direct flights between Atlanta 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.
The cheapest airline that flies to Porto is Frontier Airlines .

Travelling from Atlanta to Porto Airport (OPO): What you need to know

  • Hartsfield-Jackson Atlanta International Airport (ATL) is Atlanta's main airport. Explore your options for booking a flight from Atlanta to Porto Airport (OPO) jetting off from here.

  • Porto Airport is located in Porto. The city follows the UTC+0 timezone and is four hours ahead of Atlanta.

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

  • Heading away during a peak period like school or public holidays? Expect longer lines at check-in and security. To play it safe, arrive up to four hours before international flights and two hours ahead of domestic departures.

Airports in Atlanta

Hartsfield-Jackson Atlanta International Airport (ATL)

  • Think about adding a stopover to find cheap flights from Atlanta to OPO. Just uncheck 'Direct flights only' when searching for departures from Hartsfield-Jackson Atlanta International Airport (ATL). Make a stop (and maybe make your fare cheaper) by passing through one of these popular airports:

    • Newark Liberty International Airport (EWR)

    • Logan International Airport (BOS)

    • Pearson International Airport (YYZ)

  • Located around 18 kilometres from central Atlanta, ATL can be reached in about 15 minutes by car, depending on traffic. The journey on public transport takes roughly 1 hour 10 minutes.

  • Planning to catch an early flight from Atlanta to Porto Airport? Avoid the stress of rushing to the terminal (and sneak in some extra snooze time) by picking one of these hotels near Hartsfield-Jackson Atlanta International Airport:

  • 76.64% of flights that leave from Hartsfield-Jackson Atlanta International Airport land at their destination on time.

  • You'll find ATL at 6000 N Terminal Parkway.

About Porto Airport (OPO)

  • If you're arriving on a late flight from Atlanta to Porto Airport, few things top the convenience of staying close to the terminal. Collect your bags from the carousel and then be showered and sleeping not long after at one of these options near OPO:

  • Get your adventure underway by picking up a Porto Airport rental car. Grab a set of wheels from Klass Wagen, Goldcar or Drive & Go and explore beyond Porto's main sights.

  • Booking your vehicle around three weeks in advance of your Atlanta to Porto Airport flight can help you find the best deal.

Getting from Porto Airport (OPO) to central Porto

  • The centre of Porto is roughly 11 kilometres from Porto Airport. Travel times by cab or car hire will vary depending on time of day, so do some research ahead of your trip.

  • It'll take around 50 minutes if you're travelling on public transport.

How to find the cheapest flights from Atlanta to Porto Airport (OPO)

  • ر.ق.‏ 788 is currently the best price for a one-way ticket from Atlanta to Porto Airport. Return flights start from ر.ق.‏ 1,687. These prices can change based on demand and availability.

  • Don't leave things to the last minute. You're more likely to find cheap flights from Atlanta to OPO if you book in advance. Airlines often offer some fantastic early bird rates.

  • If you have some flexibility with your trip dates, use the 'Whole month' tool. It'll show you the lowest price across every month when searching for your Atlanta to Porto Airport ticket.

  • Save time searching for cheap flight tickets from Atlanta to OPO by creating a Price Alert. We'll send you an email or notification through the app when prices go down.

  • Save money on your flight from Atlanta to Porto Airport by using filters. Select your preferred duration, number of stops and airlines, then sort the results by 'Cheapest' for the best deals.

The best time to fly from Atlanta to Porto Airport (OPO)

  • Picture the kind of break you want when deciding when to fly. February is the quietest month to visit Porto. August is when most people book flights from Atlanta to Porto Airport (OPO), which may be perfect if you enjoy travelling when it's busier.

  • Lock in an Atlanta to OPO flight ticket departing in August if you want to experience the city during its warmest month. You can expect temperatures in Porto to range from 14ºC to 32ºC.

  • January sees temperatures of between 3ºC and 14ºC. Look for cheap tickets from Atlanta to Porto Airport around that time if you want to travel when it's cooler.

More about Porto

  • Start your Porto trip right by choosing the perfect place to stay. After booking your flight from Atlanta to Porto Airport, browse our selection of accommodation options including:

  • There are so many things to do and see in this city, it can be difficult to know where to begin. Ribeira District, Rio Douro and Livraria Lello are highlights which should feature on any well-planned Porto itinerary.

Explore more of Portugal

  • You've seen Porto, now it's time to explore more of Portugal. Travel about 290 kilometres south to Lisbon to tick off its must-visit sights. From belém to Pasteis de Belém and Real Mosteiro de Santa Maria de Belém, there's plenty to keep you on the go.

  • Amadora is another standout destination in Portugal and is around 274 kilometres south of Porto. No trip is complete without experiencing Roman Villa, Park Fonte das Avencas and Park Fantasia.

Plan the rest of your trip from Atlanta to Porto

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