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

Amsterdam (AMS) was the most common stop: 36% of momondo users choosing 1-stop flights on this route connected there.

What is the cheapest airline that flies from Atlanta Hartsfield-Jackson to Porto?

Delta is the most popular carrier operating from Atlanta Hartsfield-Jackson to Porto

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.

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

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

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.

What airlines fly to Porto?

Delta, United Airlines and KLM 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 56% 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.

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 September 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.

$305 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.

4:45 pm - 10:35 amATL Atlanta Hartsfield-Jackson-OPO Porto

13h 50m1 stop Paris Charles de Gaulle

5:00 am - 4:57 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

16h 57m1 stop Amsterdam Schiphol

$698Delta

Mon, Oct 26 - Wed, Nov 11

9:59 am - 8:15 amATL Atlanta Hartsfield-Jackson-OPO Porto

17h 16m1 stop New York John F Kennedy Intl

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

20h 40m1 stop Amsterdam Schiphol

$698Delta

Wed, Nov 25 - Thu, Dec 3

5:40 pm - 10:35 amATL Atlanta Hartsfield-Jackson-OPO Porto

11h 55m1 stop Paris Charles de Gaulle

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

14h 25m1 stop Amsterdam Schiphol

$698Multiple Airlines

Wed, Nov 11 - Wed, Nov 18

10:50 pm - 10:30 pmATL Atlanta Hartsfield-Jackson-OPO Porto

18h 40m1 stop Amsterdam Schiphol

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

14h 25m1 stop Amsterdam Schiphol

$702KLM

Tue, Nov 3 - Tue, Nov 10

10:50 pm - 3:25 pmATL Atlanta Hartsfield-Jackson-OPO Porto

11h 35m1 stop Amsterdam Schiphol

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

20h 40m1 stop Amsterdam Schiphol

$702KLM

Tue, Dec 1 - Tue, Dec 8

4:30 pm - 11:45 amATL Atlanta Hartsfield-Jackson-OPO Porto

14h 15m1 stop Frankfurt am Main

6:00 am - 9:21 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

20h 21m2 stops Frankfurt am Main Toronto Pearson Intl

$702Multiple Airlines

Tue, Dec 1 - Tue, Dec 8

2:35 pm - 9:30 amATL Atlanta Hartsfield-Jackson-OPO Porto

13h 55m2 stops Washington, D.C. Dulles Intl Newark

6:00 am - 9:26 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

20h 26m2 stops Frankfurt am Main Chicago O'Hare Intl

$706United Airlines

Tue, Nov 24 - Thu, Dec 3

2:31 pm - 9:30 amATL Atlanta Hartsfield-Jackson-OPO Porto

13h 59m2 stops Washington, D.C. Dulles Intl Newark

6:00 am - 7:47 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

18h 47m2 stops Frankfurt am Main Newark

$706United Airlines

Mon, Nov 23 - Thu, Dec 3

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

36h 50m1 stop Istanbul

10:40 am - 7:45 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

38h 05m1 stop Istanbul

$787Turkish Airlines

Mon, Sep 28 - Tue, Oct 6

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

$787Turkish Airlines

Mon, Oct 5 - Fri, Oct 16

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Delta flights from Atlanta to Porto

Our best Delta deals on Atlanta to Porto flight tickets

Delta

Oct 13

ATL9:55 pmAtlanta Hartsfield-Jackson

12h 30m

1 stop

OPO3:25 pmPorto

Nov 3

OPO5:00 amPorto

20h 40m

1 stop

ATL8:40 pmAtlanta Hartsfield-Jackson

$698

Delta

Oct 26

ATL4:45 pmAtlanta Hartsfield-Jackson

13h 50m

1 stop

OPO10:35 amPorto

Nov 11

OPO5:00 amPorto

16h 57m

1 stop

ATL4:57 pmAtlanta Hartsfield-Jackson

$700

Delta

Oct 13

ATL5:54 pmAtlanta Hartsfield-Jackson

16h 31m

2 stops

OPO3:25 pmPorto

Nov 3

OPO5:00 amPorto

20h 40m

1 stop

ATL8:40 pmAtlanta Hartsfield-Jackson

$702

KLM flights from Atlanta to Porto

Our best KLM deals on Atlanta to Porto flight tickets

KLM

Nov 15

ATL11:30 amAtlanta Hartsfield-Jackson

15h 45m

1 stop

OPO8:15 amPorto

Feb 13

OPO5:00 amPorto

15h 05m

1 stop

ATL3:05 pmAtlanta Hartsfield-Jackson

$748

KLM

Jan 5

ATL5:10 pmAtlanta Hartsfield-Jackson

12h 20m

1 stop

OPO10:30 amPorto

Jan 18

OPO5:00 amPorto

15h 20m

1 stop

ATL3:20 pmAtlanta Hartsfield-Jackson

$757

KLM

Sep 10

ATL8:05 pmAtlanta Hartsfield-Jackson

14h 20m

1 stop

OPO3:25 pmPorto

Sep 14

OPO7:55 pmPorto

21h 41m

1 stop

ATL12:36 pmAtlanta Hartsfield-Jackson

$1,187

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AtlantaPorto

ATL Atlanta Hartsfield-Jackson - OPO Porto

ATLOPO

Atlanta Hartsfield-Jackson

Mon 10/26

4:45 pm-10:35 am

1 stop13h 50m

Porto

Wed 11/11

5:00 am-4:57 pm

1 stop16h 57m

$698

AtlantaPorto

ATL Atlanta Hartsfield-Jackson - OPO Porto

ATLOPO

Atlanta Hartsfield-Jackson

Wed 11/25

9:59 am-8:15 am

1 stop17h 16m

Porto

Thu 12/3

5:00 am-8:40 pm

1 stop20h 40m

$698

Quickest round-trip

AtlantaPorto

ATL Atlanta Hartsfield-Jackson - OPO Porto

ATLOPO

Atlanta Hartsfield-Jackson

Wed 11/11

5:40 pm-10:35 am

1 stop11h 55m

Porto

Wed 11/18

11:15 am-8:40 pm

1 stop14h 25m

$698

AtlantaPorto

ATL Atlanta Hartsfield-Jackson - OPO Porto

ATLOPO

Atlanta Hartsfield-Jackson

Tue 11/3

10:50 pm-10:30 pm

1 stop18h 40m

Porto

Tue 11/10

11:15 am-8:40 pm

1 stop14h 25m

$702

AtlantaPorto

ATL Atlanta Hartsfield-Jackson - OPO Porto

ATLOPO

Atlanta Hartsfield-Jackson

Tue 12/1

10:50 pm-3:25 pm

1 stop11h 35m

Porto

Tue 12/8

5:00 am-8:40 pm

1 stop20h 40m

$702

AtlantaPorto

ATL Atlanta Hartsfield-Jackson - OPO Porto

ATLOPO

Atlanta Hartsfield-Jackson

Tue 12/1

4:30 pm-11:45 am

1 stop14h 15m

Porto

Tue 12/8

6:00 am-9:21 pm

2 stops20h 21m

$702

AtlantaPorto

ATL Atlanta Hartsfield-Jackson - OPO Porto

ATLOPO

Atlanta Hartsfield-Jackson

Tue 11/24

2:35 pm-9:30 am

2 stops13h 55m

Porto

Thu 12/3

6:00 am-9:26 pm

2 stops20h 26m

$706

AtlantaPorto

ATL Atlanta Hartsfield-Jackson - OPO Porto

ATLOPO

Atlanta Hartsfield-Jackson

Mon 11/23

2:31 pm-9:30 am

2 stops13h 59m

Porto

Thu 12/3

6:00 am-7:47 pm

2 stops18h 47m

$706

AtlantaPorto

ATL Atlanta Hartsfield-Jackson - OPO Porto

ATLOPO

Atlanta Hartsfield-Jackson

Mon 9/28

9:50 pm-3:40 pm

1 stop36h 50m

Porto

Tue 10/6

10:40 am-7:45 pm

1 stop38h 05m

$787

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

$787

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 $922 to $1,113.
The lowest price recently found on this route was $698.

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 $638.

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 $864 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	$305
Fastest flight time	11h 55m
Direct flights	None

The best one-way flight to Porto from Atlanta in the past 72 hours is $305. The best round-trip flight deal from Atlanta to Porto found on momondo in the last 72 hours is $698.

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 September 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 52% of all bookings. The subsequent popular airlines are United Airlines at 17%, KLM at 16%, 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 1,573 reviews	Search KLM flights
Air France	PriceFrom $564	Free Cancellation	Rating 7.5 1,649 reviews	Search Air France flights
United Airlines	PriceFrom $592	Free Cancellation	Rating 7.4 10,178 reviews	Search United Airlines flights
Delta	PriceFrom $610	Free Cancellation	Rating 7.8 8,548 reviews	Search Delta flights
Turkish Airlines	PriceFrom $677	Free Cancellation	Rating 7.4 4,477 reviews	Search Turkish Airlines flights

Coimbra

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Aveiro

Braga

Pinhao

Matosinhos

Esposende

Chaves

Arcos de Valdevez

Viseu

Espinho

Guimarães

Lamego

Ponte de Lima

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

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Cheap flights from Atlanta to Porto from $305

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 9/28. 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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Delta flights from Atlanta to Porto

Our best Delta deals on Atlanta to Porto flight tickets

KLM flights from Atlanta to Porto

Our best KLM deals on Atlanta to Porto flight tickets

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See travel insights to Porto from

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 is the cheapest airline that flies from Atlanta Hartsfield-Jackson to Porto?

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.

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

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