Which layover airport has the shortest travel time from Atlanta to Porto?

Flights connecting via New York (JFK) have the shortest average one-way travel time: 10h 40m.

Which airport is the most popular layover for flights between Atlanta and Porto?

Amsterdam (AMS) was the most common stop: 33% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest connection time from Atlanta to Porto?

New York (JFK) has the shortest average layover time for this route: 1h 47m.

What airlines fly to Porto?

Delta, KLM and United Airlines are the top three most popular airlines that fly to Porto from Atlanta according to our data. Delta is the first choice among our users, with 55% of people opting to fly with this airline when traveling to Porto. Keep in mind that there are 5 different airlines that fly to Porto on a routine basis, so you have a few additional options to choose from.

Which layover airport offers the lowest fares from Atlanta to Porto?

Flights via Newark (EWR) offer the lowest average round-trip price of $813.

When did momondo last update prices for flights from Atlanta Hartsfield-Jackson Airport to Porto Airport?

Prices for flights from Atlanta Hartsfield-Jackson Airport to Porto Airport are updated daily.

How many operators does momondo search for flights from Atlanta Hartsfield-Jackson Airport to Porto Airport?

As of August 2026, there are 5 operators available to choose from for flights from Atlanta Hartsfield-Jackson Airport to Porto Airport.

How old do you have to be to fly from Atlanta Hartsfield-Jackson 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 Atlanta Hartsfield-Jackson Airport to Porto Airport.

What documentation or ID do you need to fly to Porto Airport?

The necessary travel and health documents for your Porto Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$246 Cheap Flights from Atlanta to Porto in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Atlanta to Porto

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:30 pm - 5:05 pmATL Atlanta Hartsfield-Jackson-OPO Porto

16h 35m1 stop Kastrup Copenhagen

5:35 pm - 6:00 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

29h 25m1 stop Kastrup Copenhagen

$677Scandinavian Airlines

Sat, Oct 17 - Sun, Nov 1

7:30 pm - 5:05 pmATL Atlanta Hartsfield-Jackson-OPO Porto

16h 35m1 stop Kastrup Copenhagen

5:35 pm - 6:00 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

29h 25m1 stop Kastrup Copenhagen

$679Scandinavian Airlines

Sat, Oct 17 - Sun, Nov 1

8:30 am - 10:25 amATL Atlanta Hartsfield-Jackson-OPO Porto

20h 55m1 stop New York LaGuardia

11:15 am - 8:40 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

14h 25m1 stop Amsterdam Schiphol

$690Delta

Sun, Oct 18 - Tue, Nov 3

9:55 pm - 3:25 pmATL Atlanta Hartsfield-Jackson-OPO Porto

12h 30m1 stop Paris Charles de Gaulle

5:00 am - 8:40 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

20h 40m1 stop Amsterdam Schiphol

$698Delta

Tue, Oct 13 - Tue, Nov 3

10:43 am - 9:30 amATL Atlanta Hartsfield-Jackson-OPO Porto

17h 47m1 stop Newark

12:35 pm - 10:37 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

15h 02m1 stop Newark

$716United Airlines

Sun, Nov 8 - Thu, Nov 19

1:44 pm - 9:30 amATL Atlanta Hartsfield-Jackson-OPO Porto

14h 46m1 stop Newark

12:35 pm - 10:37 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

15h 02m1 stop Newark

$716United Airlines

Wed, Nov 11 - Thu, Nov 19

11:30 am - 8:15 amATL Atlanta Hartsfield-Jackson-OPO Porto

15h 45m1 stop New York John F Kennedy Intl

5:00 am - 3:05 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

15h 05m1 stop Amsterdam Schiphol

$748KLM

Sun, Nov 15 - Sat, Feb 13

9:50 pm - 3:40 pmATL Atlanta Hartsfield-Jackson-OPO Porto

36h 50m1 stop Istanbul

4:45 pm - 1:00 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

25h 15m1 stop Istanbul

$786Turkish Airlines

Mon, Oct 5 - Fri, Oct 16

9:50 pm - 3:40 pmATL Atlanta Hartsfield-Jackson-OPO Porto

36h 50m1 stop Istanbul

4:45 pm - 1:00 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

25h 15m1 stop Istanbul

$789Turkish Airlines

Mon, Oct 5 - Fri, Oct 16

8:05 pm - 3:30 pmATL Atlanta Hartsfield-Jackson-OPO Porto

14h 25m1 stop Paris Charles de Gaulle

9:55 am - 8:40 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

15h 45m1 stop Amsterdam Schiphol

$818KLM

Sun, Sep 27 - Tue, Dec 22

Cheap last minute flights

Enter your travel dates to find the best prices.

8:05 pm - 3:25 pmATL Atlanta Hartsfield-Jackson-OPO Porto

14h 20m1 stop Paris Charles de Gaulle

5:00 am - 8:25 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

20h 25m1 stop Amsterdam Schiphol

$1,118KLM

Tue, Sep 1 - Wed, Sep 30

9:43 am - 10:30 amATL Atlanta Hartsfield-Jackson-OPO Porto

19h 47m1 stop New York John F Kennedy Intl

11:45 am - 8:25 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

13h 40m1 stop Amsterdam Schiphol

$1,118Delta

Tue, Sep 1 - Wed, Sep 30

10:40 pm - 6:20 pmATL Atlanta Hartsfield-Jackson-OPO Porto

14h 40m1 stop Amsterdam Schiphol

5:00 am - 8:25 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

20h 25m1 stop Amsterdam Schiphol

$1,123Delta

Tue, Sep 1 - Wed, Sep 30

4:52 pm - 3:25 pmATL Atlanta Hartsfield-Jackson-OPO Porto

17h 33m2 stops Boston Logan Intl Paris Charles de Gaulle

5:00 am - 8:25 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

20h 25m1 stop Amsterdam Schiphol

$1,123Delta

Tue, Sep 1 - Wed, Sep 30

9:55 pm - 3:25 pmATL Atlanta Hartsfield-Jackson-OPO Porto

12h 30m1 stop Paris Charles de Gaulle

7:55 pm - 12:49 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

21h 54m1 stop Amsterdam Schiphol

$1,188Multiple Airlines

Fri, Sep 4 - Mon, Sep 21

7:38 pm - 6:55 amATL Atlanta Hartsfield-Jackson-OPO Porto

30h 17m2 stops Washington, D.C. Dulles Intl Newark

12:10 pm - 1:45 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

30h 35m1 stop Frankfurt am Main

$1,218United Airlines

Fri, Sep 4 - Mon, Sep 21

8:30 pm - 9:45 amATL Atlanta Hartsfield-Jackson-OPO Porto

32h 15m1 stop Newark

12:10 pm - 1:45 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

30h 35m1 stop Frankfurt am Main

$1,222United Airlines

Fri, Sep 4 - Mon, Sep 21

8:30 pm - 9:45 amATL Atlanta Hartsfield-Jackson-OPO Porto

32h 15m1 stop Newark

12:10 pm - 1:45 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

30h 35m1 stop Frankfurt am Main

$1,223United Airlines

Fri, Sep 4 - Mon, Sep 21

7:38 pm - 3:45 pmATL Atlanta Hartsfield-Jackson-OPO Porto

39h 07m2 stops Washington, D.C. Dulles Intl Frankfurt am Main

4:35 pm - 1:45 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

26h 10m1 stop Frankfurt am Main

$1,292Lufthansa

Fri, Sep 4 - Mon, Sep 21

1:21 pm - 7:55 amATL Atlanta Hartsfield-Jackson-OPO Porto

37h 34m2 stops Chicago O'Hare Intl Zurich

7:20 pm - 9:16 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

30h 56m2 stops Zurich Chicago O'Hare Intl

$1,301SWISS

Fri, Sep 4 - Mon, Sep 21

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Lufthansa flights from Atlanta to Porto

Our best Lufthansa deals on Atlanta to Porto flight tickets

Lufthansa

Nov 10

ATL4:30 pmAtlanta Hartsfield-Jackson

17h 50m

1 stop

OPO3:20 pmPorto

Nov 18

OPO12:35 pmPorto

31h 05m

1 stop

ATL2:40 pmAtlanta Hartsfield-Jackson

$710

Lufthansa

Sep 4

ATL7:38 pmAtlanta Hartsfield-Jackson

39h 07m

2 stops

OPO3:45 pmPorto

Sep 21

OPO4:35 pmPorto

26h 10m

1 stop

ATL1:45 pmAtlanta Hartsfield-Jackson

$1,292

United Airlines flights from Atlanta to Porto

Our best United Airlines deals on Atlanta to Porto flight tickets

United Airlines

Nov 11

ATL4:43 pmAtlanta Hartsfield-Jackson

11h 47m

1 stop

OPO9:30 amPorto

Nov 20

OPO12:35 pmPorto

14h 24m

1 stop

ATL9:59 pmAtlanta Hartsfield-Jackson

$716

United Airlines

Nov 9

ATL1:44 pmAtlanta Hartsfield-Jackson

14h 46m

1 stop

OPO9:30 amPorto

Nov 17

OPO12:35 pmPorto

31h 05m

1 stop

ATL2:40 pmAtlanta Hartsfield-Jackson

$717

United Airlines

Nov 8

ATL9:40 amAtlanta Hartsfield-Jackson

18h 50m

1 stop

OPO9:30 amPorto

Nov 18

OPO12:35 pmPorto

26h 40m

2 stops

ATL10:15 amAtlanta Hartsfield-Jackson

$720

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AtlantaPorto

ATL Atlanta Hartsfield-Jackson - OPO Porto

ATLOPO

Atlanta Hartsfield-Jackson

Sat 10/17

7:30 pm-5:05 pm

1 stop16h 35m

Porto

Sun 11/1

5:35 pm-6:00 pm

1 stop29h 25m

$677

AtlantaPorto

ATL Atlanta Hartsfield-Jackson - OPO Porto

ATLOPO

Atlanta Hartsfield-Jackson

Sat 10/17

7:30 pm-5:05 pm

1 stop16h 35m

Porto

Sun 11/1

5:35 pm-6:00 pm

1 stop29h 25m

$679

AtlantaPorto

ATL Atlanta Hartsfield-Jackson - OPO Porto

ATLOPO

Atlanta Hartsfield-Jackson

Sun 10/18

8:30 am-10:25 am

1 stop20h 55m

Porto

Tue 11/3

11:15 am-8:40 pm

1 stop14h 25m

$690

AtlantaPorto

ATL Atlanta Hartsfield-Jackson - OPO Porto

ATLOPO

Atlanta Hartsfield-Jackson

Tue 10/13

9:55 pm-3:25 pm

1 stop12h 30m

Porto

Tue 11/3

5:00 am-8:40 pm

1 stop20h 40m

$698

AtlantaPorto

ATL Atlanta Hartsfield-Jackson - OPO Porto

ATLOPO

Atlanta Hartsfield-Jackson

Sun 11/8

10:43 am-9:30 am

1 stop17h 47m

Porto

Thu 11/19

12:35 pm-10:37 pm

1 stop15h 02m

$716

Quickest round-trip

AtlantaPorto

ATL Atlanta Hartsfield-Jackson - OPO Porto

ATLOPO

Atlanta Hartsfield-Jackson

Wed 11/11

1:44 pm-9:30 am

1 stop14h 46m

Porto

Thu 11/19

12:35 pm-10:37 pm

1 stop15h 02m

$716

AtlantaPorto

ATL Atlanta Hartsfield-Jackson - OPO Porto

ATLOPO

Atlanta Hartsfield-Jackson

Sun 11/15

11:30 am-8:15 am

1 stop15h 45m

Porto

Sat 2/13

5:00 am-3:05 pm

1 stop15h 05m

$748

AtlantaPorto

ATL Atlanta Hartsfield-Jackson - OPO Porto

ATLOPO

Atlanta Hartsfield-Jackson

Mon 10/5

9:50 pm-3:40 pm

1 stop36h 50m

Porto

Fri 10/16

4:45 pm-1:00 pm

1 stop25h 15m

$786

AtlantaPorto

ATL Atlanta Hartsfield-Jackson - OPO Porto

ATLOPO

Atlanta Hartsfield-Jackson

Mon 10/5

9:50 pm-3:40 pm

1 stop36h 50m

Porto

Fri 10/16

4:45 pm-1:00 pm

1 stop25h 15m

$789

AtlantaPorto

ATL Atlanta Hartsfield-Jackson - OPO Porto

ATLOPO

Atlanta Hartsfield-Jackson

Sun 9/27

8:05 pm-3:30 pm

1 stop14h 25m

Porto

Tue 12/22

9:55 am-8:40 pm

1 stop15h 45m

$818

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Atlanta 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

Prices

Airlines

Layovers

What is the typical price of a round-trip flight between Atlanta and Porto?

Prices are currently low for flights on this route.

Typical prices usually range from $926 to $1,113.
The lowest price recently found on this route was $677.

What is the cheapest month to fly to Porto?

The month of March is, on average, the cheapest month to fly to Porto from Atlanta, with most prices found around $581. If you aren’t able to travel during the month of March, then book flights to Porto from Atlanta during January instead. Flights to Porto in January, while not as cheap as those in March, still average around $628.

How far in advance should I book a flight from Atlanta to Porto?

You are more likely to see cheaper flights to Porto from Atlanta when booking weeks ahead of your departure date. In general, you can expect to find flights to Porto for around $859 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Porto from Atlanta for as low as $812 on momondo.

Can stopping save me money on Atlanta to Porto flights?

You could potentially save up to 26% on your flight if you consider stops on a Atlanta to Porto flight.

When to book flights from Atlanta to Porto

Are you open to changing your travel dates? Check out the ideal times to fly from Atlanta to Porto according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Atlanta to Porto (ATL to OPO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Atlanta to Porto

Best Price Found	$246
Fastest flight time	11h 55m
Direct flights	None

The best one-way flight to Porto from Atlanta in the past 72 hours is $246. The best round-trip flight deal from Atlanta to Porto found on momondo in the last 72 hours is $677.

The fastest flight from Atlanta to Porto takes 11h 55m

There are no direct flights from Atlanta to Porto. There are no popular flight routes from Atlanta to Porto.

Search flight deals

Frequently asked questions about flying from Atlanta to Porto

How far is Atlanta Hartsfield-Jackson to Porto by plane?
Atlanta Hartsfield-Jackson and Porto are 4052.2 mi apart from one another. 11h 55m is a normal flight duration for this route.
When did momondo last update prices for flights from Atlanta Hartsfield-Jackson Airport to Porto Airport?
Prices for flights from Atlanta Hartsfield-Jackson Airport to Porto Airport are updated daily.
How many operators does momondo search for flights from Atlanta Hartsfield-Jackson Airport to Porto Airport?
As of August 2026, there are 5 operators available to choose from for flights from Atlanta Hartsfield-Jackson Airport to Porto Airport.
How old do you have to be to fly from Atlanta Hartsfield-Jackson 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 Atlanta Hartsfield-Jackson Airport to Porto Airport.
What documentation or ID do you need to fly to Porto Airport?
The necessary travel and health documents for your Porto Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Atlanta to Porto?
momondo data reveals that the most frequently booked airline on the route from Atlanta to Porto is Delta, representing 51% of all bookings. The subsequent popular airlines are KLM at 17%, United Airlines at 17%, and Air France at 8%.

Best airlines flying from Atlanta to Porto

Compare and see reviews for airlines that fly from Atlanta to Porto with momondo

Airline	Rating	Free Cancellation	Price
KLM	PriceFrom $533	Free Cancellation	Rating 7.8 1,570 reviews	Search KLM flights
Air France	PriceFrom $564	Free Cancellation	Rating 7.5 1,646 reviews	Search Air France flights
United Airlines	PriceFrom $592	Free Cancellation	Rating 7.4 10,147 reviews	Search United Airlines flights
Delta	PriceFrom $610	Free Cancellation	Rating 7.8 8,534 reviews	Search Delta flights
Turkish Airlines	PriceFrom $677	Free Cancellation	Rating 7.4 4,478 reviews	Search Turkish Airlines flights

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Coimbra

Aveiro

Braga

Pinhao

Matosinhos

Esposende

Chaves

Arcos de Valdevez

Viseu

Espinho

Guimarães

Lamego

Ponte de Lima

Mesao Frio

Penafiel

Caminha

Baiao

Mira

Why use momondo?

Why should I use momondo to find a flight deal from Atlanta to Porto?

It is quick and easy to find Atlanta to Porto flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Porto that suits you.

Can I find flights from Atlanta to Porto with flexible booking policies on momondo?

Flights from Atlanta to Porto with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Atlanta 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 Atlanta.

I’m not ready to book a flight from Atlanta to Porto right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Porto, momondo offers a useful price alert feature which will track prices for flights to Porto from Atlanta and alert you when they change.

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.

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Faro Airport

Lisbon Humberto Delgado Airport

Azores Airport

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Cheap flights from Atlanta to Porto from $246

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Atlanta to Porto departing on 10/19. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Lufthansa flights from Atlanta to Porto

Our best Lufthansa deals on Atlanta to Porto flight tickets

United Airlines flights from Atlanta to Porto

Our best United Airlines deals on Atlanta to Porto flight tickets

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How to get the cheapest flight ticket from Atlanta to Porto

What is the typical price of a round-trip flight between Atlanta and Porto?

What is the cheapest month to fly to Porto?

How far in advance should I book a flight from Atlanta to Porto?

Can stopping save me money on Atlanta to Porto flights?

What airlines fly to Porto?

Which airport is the most popular layover for flights between Atlanta and Porto?

Which layover airport offers the lowest fares from Atlanta to Porto?

Which layover airport has the shortest travel time from Atlanta to Porto?

Which layover airport has the shortest connection time from Atlanta to Porto?

When to book flights from Atlanta to Porto

Cheap Atlanta to Porto (ATL to OPO) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Atlanta to Porto

Best airlines flying from Atlanta to Porto

Compare and see reviews for airlines that fly from Atlanta to Porto with momondo

Traveling to a place near Porto?

Why use momondo?

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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Portugal

Airports servicing Portugal

Fly your favorite airline to Porto

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Porto

List of cabin classes available on flights landing in Porto. Availability may vary depending on flight origin and airline.

Popular cities in Portugal

Popular flights according to clicks in the last 7 days on momondo

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