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 $767.

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 58% of people opting to fly with this airline when traveling to Porto. Keep in mind that there are 6 different airlines that fly to Porto on a routine basis, so you have a few additional options to choose from.

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.

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

Air Canada and Lufthansa are the most popular carriers operating from Atlanta Hartsfield-Jackson to Porto

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 October 2026, there are 6 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.

$312 Cheap Flights from Atlanta to Porto in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Atlanta to Porto

Round-trip

One-way

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Cheap round-trip flights

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7:14 am - 10:00 amATL Atlanta Hartsfield-Jackson-OPO Porto

21h 46m3 stops Baltimore/Washington Miami Lisbon Humberto Delgado

7:00 am - 1:11 amOPO Porto-ATL Atlanta Hartsfield-Jackson

23h 11m2 stops Lisbon Humberto Delgado Miami

$606Multiple Airlines

Mon, Nov 16 - Sat, Nov 21

3:45 pm - 10:35 amATL Atlanta Hartsfield-Jackson-OPO Porto

13h 50m1 stop Paris Charles de Gaulle

5:00 am - 2:57 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

14h 57m1 stop Amsterdam Schiphol

$701Delta

Sun, Jan 17 - Wed, Mar 10

3:50 pm - 10:35 amATL Atlanta Hartsfield-Jackson-OPO Porto

13h 45m1 stop Paris Charles de Gaulle

5:00 am - 5:08 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

17h 08m1 stop Amsterdam Schiphol

$701Multiple Airlines

Sun, Feb 21 - Thu, Mar 4

3:45 pm - 10:35 amATL Atlanta Hartsfield-Jackson-OPO Porto

13h 50m1 stop Paris Charles de Gaulle

5:00 am - 2:57 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

14h 57m1 stop Amsterdam Schiphol

$702Delta

Sun, Jan 17 - Wed, Mar 10

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

14h 00m2 stops Washington, D.C. Dulles Intl Newark

6:00 am - 11:36 amOPO Porto-ATL Atlanta Hartsfield-Jackson

34h 36m2 stops Frankfurt am Main Toronto Pearson Intl

$709United Airlines

Sun, Feb 21 - Thu, Mar 4

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

15h 45m1 stop New York John F Kennedy Intl

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

15h 00m1 stop Amsterdam Schiphol

$720KLM

Wed, Nov 18 - Wed, Dec 9

10:45 am - 9:30 amATL Atlanta Hartsfield-Jackson-OPO Porto

17h 45m1 stop Newark

6:00 am - 7:52 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

18h 52m2 stops Frankfurt am Main Washington, D.C. Dulles Intl

$721United Airlines

Mon, Nov 23 - Tue, Dec 8

8:10 pm - 3:25 pmATL Atlanta Hartsfield-Jackson-OPO Porto

14h 15m1 stop Amsterdam Schiphol

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

14h 25m1 stop Amsterdam Schiphol

$729KLM

Mon, Jan 4 - Wed, Jan 13

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

14h 20m1 stop Paris Charles de Gaulle

5:55 am - 1:50 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

12h 55m1 stop Paris Charles de Gaulle

$759Air France

Wed, Apr 14 - Sat, Apr 24

3:45 pm - 10:35 amATL Atlanta Hartsfield-Jackson-OPO Porto

13h 50m1 stop Paris Charles de Gaulle

5:55 am - 7:54 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

18h 59m1 stop Paris Charles de Gaulle

$1,232Air France

Mon, Jan 4 - Thu, Jan 7

Cheap last minute flights

Enter your travel dates to find the best prices.

7:29 pm - 12:40 amATL Atlanta Hartsfield-Jackson-OPO Porto

24h 11m2 stops Miami Lisbon Humberto Delgado

6:00 pm - 1:04 amOPO Porto-ATL Atlanta Hartsfield-Jackson

35h 04m2 stops Lisbon Humberto Delgado Miami

$817Multiple Airlines

Wed, Oct 21 - Wed, Oct 28

7:29 pm - 12:40 amATL Atlanta Hartsfield-Jackson-OPO Porto

24h 11m2 stops Miami Lisbon Humberto Delgado

6:00 pm - 1:04 amOPO Porto-ATL Atlanta Hartsfield-Jackson

35h 04m2 stops Lisbon Humberto Delgado Miami

$840Multiple Airlines

Wed, Oct 21 - Wed, Oct 28

1:23 pm - 10:20 amATL Atlanta Hartsfield-Jackson-OPO Porto

15h 57m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

4:15 pm - 3:40 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

27h 25m1 stop Frankfurt am Main

$844Lufthansa

Wed, Oct 21 - Tue, Oct 27

10:30 am - 12:40 amATL Atlanta Hartsfield-Jackson-OPO Porto

33h 10m3 stops Dallas/Fort Worth Miami Lisbon Humberto Delgado

6:00 pm - 1:04 amOPO Porto-ATL Atlanta Hartsfield-Jackson

35h 04m2 stops Lisbon Humberto Delgado Miami

$845Multiple Airlines

Wed, Oct 21 - Wed, Oct 28

4:30 pm - 3:25 pmATL Atlanta Hartsfield-Jackson-OPO Porto

17h 55m1 stop Paris Charles de Gaulle

5:00 am - 9:40 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

20h 40m1 stop Amsterdam Schiphol

$868Delta

Wed, Oct 21 - Wed, Oct 28

4:41 pm - 3:25 pmATL Atlanta Hartsfield-Jackson-OPO Porto

17h 44m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle

11:15 am - 9:40 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

14h 25m1 stop Amsterdam Schiphol

$873Delta

Wed, Oct 21 - Wed, Oct 28

4:41 pm - 3:25 pmATL Atlanta Hartsfield-Jackson-OPO Porto

17h 44m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle

11:15 am - 9:40 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

14h 25m1 stop Amsterdam Schiphol

$873Delta

Wed, Oct 21 - Wed, Oct 28

9:29 am - 9:45 amATL Atlanta Hartsfield-Jackson-OPO Porto

19h 16m1 stop Newark

12:35 pm - 10:09 amOPO Porto-ATL Atlanta Hartsfield-Jackson

25h 34m2 stops Frankfurt am Main Chicago O'Hare Intl

$878United Airlines

Wed, Oct 21 - Wed, Oct 28

2:40 pm - 9:45 amATL Atlanta Hartsfield-Jackson-OPO Porto

14h 05m2 stops Washington, D.C. Dulles Intl Newark

6:00 am - 12:35 amOPO Porto-ATL Atlanta Hartsfield-Jackson

22h 35m2 stops Frankfurt am Main Washington, D.C. Dulles Intl

$878United Airlines

Wed, Oct 21 - Tue, Oct 27

2:40 pm - 9:45 amATL Atlanta Hartsfield-Jackson-OPO Porto

14h 05m2 stops Washington, D.C. Dulles Intl Newark

12:35 pm - 3:40 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

31h 05m1 stop Frankfurt am Main

$900United Airlines

Wed, Oct 21 - Wed, Oct 28

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Delta flights from Atlanta to Porto

Our best Delta deals on Atlanta to Porto flight tickets

Delta

Jan 17

ATL3:45 pmAtlanta Hartsfield-Jackson

13h 50m

1 stop

OPO10:35 amPorto

Mar 10

OPO5:00 amPorto

14h 57m

1 stop

ATL2:57 pmAtlanta Hartsfield-Jackson

$701

Delta

Jan 17

ATL3:45 pmAtlanta Hartsfield-Jackson

13h 50m

1 stop

OPO10:35 amPorto

Mar 10

OPO5:00 amPorto

14h 57m

1 stop

ATL2:57 pmAtlanta Hartsfield-Jackson

$702

Delta

Jan 17

ATL1:15 pmAtlanta Hartsfield-Jackson

16h 20m

2 stops

OPO10:35 amPorto

Mar 10

OPO5:00 amPorto

14h 57m

1 stop

ATL2:57 pmAtlanta Hartsfield-Jackson

$706

United Airlines flights from Atlanta to Porto

Our best United Airlines deals on Atlanta to Porto flight tickets

United Airlines

Feb 21

ATL2:30 pmAtlanta Hartsfield-Jackson

14h 00m

2 stops

OPO9:30 amPorto

Mar 4

OPO6:00 amPorto

34h 36m

2 stops

ATL11:36 amAtlanta Hartsfield-Jackson

$709

United Airlines

Nov 23

ATL3:32 pmAtlanta Hartsfield-Jackson

12h 58m

2 stops

OPO9:30 amPorto

Dec 8

OPO6:00 amPorto

18h 52m

2 stops

ATL7:52 pmAtlanta Hartsfield-Jackson

$721

United Airlines

Nov 23

ATL3:32 pmAtlanta Hartsfield-Jackson

12h 58m

2 stops

OPO9:30 amPorto

Dec 8

OPO6:00 amPorto

18h 52m

2 stops

ATL7:52 pmAtlanta Hartsfield-Jackson

$723

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AtlantaPorto

ATL Atlanta Hartsfield-Jackson - OPO Porto

ATLOPO

Atlanta Hartsfield-Jackson

Mon 11/16

7:14 am-10:00 am

3 stops21h 46m

Porto

Sat 11/21

7:00 am-1:11 am

2 stops23h 11m

$606

AtlantaPorto

ATL Atlanta Hartsfield-Jackson - OPO Porto

ATLOPO

Atlanta Hartsfield-Jackson

Sun 1/17

3:45 pm-10:35 am

1 stop13h 50m

Porto

Wed 3/10

5:00 am-2:57 pm

1 stop14h 57m

$701

AtlantaPorto

ATL Atlanta Hartsfield-Jackson - OPO Porto

ATLOPO

Atlanta Hartsfield-Jackson

Sun 2/21

3:50 pm-10:35 am

1 stop13h 45m

Porto

Thu 3/4

5:00 am-5:08 pm

1 stop17h 08m

$701

AtlantaPorto

ATL Atlanta Hartsfield-Jackson - OPO Porto

ATLOPO

Atlanta Hartsfield-Jackson

Sun 1/17

3:45 pm-10:35 am

1 stop13h 50m

Porto

Wed 3/10

5:00 am-2:57 pm

1 stop14h 57m

$702

AtlantaPorto

ATL Atlanta Hartsfield-Jackson - OPO Porto

ATLOPO

Atlanta Hartsfield-Jackson

Sun 2/21

2:30 pm-9:30 am

2 stops14h 00m

Porto

Thu 3/4

6:00 am-11:36 am

2 stops34h 36m

$709

AtlantaPorto

ATL Atlanta Hartsfield-Jackson - OPO Porto

ATLOPO

Atlanta Hartsfield-Jackson

Wed 11/18

11:30 am-8:15 am

1 stop15h 45m

Porto

Wed 12/9

5:00 am-3:00 pm

1 stop15h 00m

$720

AtlantaPorto

ATL Atlanta Hartsfield-Jackson - OPO Porto

ATLOPO

Atlanta Hartsfield-Jackson

Mon 11/23

10:45 am-9:30 am

1 stop17h 45m

Porto

Tue 12/8

6:00 am-7:52 pm

2 stops18h 52m

$721

AtlantaPorto

ATL Atlanta Hartsfield-Jackson - OPO Porto

ATLOPO

Atlanta Hartsfield-Jackson

Mon 1/4

8:10 pm-3:25 pm

1 stop14h 15m

Porto

Wed 1/13

11:15 am-8:40 pm

1 stop14h 25m

$729

Quickest round-trip

AtlantaPorto

ATL Atlanta Hartsfield-Jackson - OPO Porto

ATLOPO

Atlanta Hartsfield-Jackson

Wed 4/14

8:05 pm-3:25 pm

1 stop14h 20m

Porto

Sat 4/24

5:55 am-1:50 pm

1 stop12h 55m

$759

AtlantaPorto

ATL Atlanta Hartsfield-Jackson - OPO Porto

ATLOPO

Atlanta Hartsfield-Jackson

Mon 1/4

3:45 pm-10:35 am

1 stop13h 50m

Porto

Thu 1/7

5:55 am-7:54 pm

1 stop18h 59m

$1,232

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 $881 to $1,157.
The lowest price recently found on this route was $606.

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 $582. If you aren’t able to travel during the month of March, then book flights to Porto from Atlanta during February instead. Flights to Porto in February, while not as cheap as those in March, still average around $706.

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 $928 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 28% 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	$312
Fastest flight time	11h 55m
Direct flights	None

The best one-way flight to Porto from Atlanta in the past 72 hours is $312. The best round-trip flight deal from Atlanta to Porto found on momondo in the last 72 hours is $606.

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 October 2026, there are 6 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 KLM at 15%, United Airlines at 15%, 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 $550	Free Cancellation	Rating 7.8 1,591 reviews	Search KLM flights
Air France	PriceFrom $564	Free Cancellation	Rating 7.5 1,651 reviews	Search Air France flights
Delta	PriceFrom $610	Free Cancellation	Rating 7.8 8,650 reviews	Search Delta flights
United Airlines	PriceFrom $631	Free Cancellation	Rating 7.3 10,388 reviews	Search United Airlines flights
Turkish Airlines	PriceFrom $663	Free Cancellation	Rating 7.4 4,456 reviews	Search Turkish Airlines flights
British Airways	PriceFrom $675	Free Cancellation	Rating 6.7 8,266 reviews	Search British Airways flights

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Braga

Vila Nova de Gaia

Aveiro

Pinhao

Matosinhos

Esposende

Chaves

Viseu

Espinho

Arcos de Valdevez

Guimarães

Lamego

Ponte de Lima

Caminha

Penafiel

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

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Faro Airport

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Cheap flights from Atlanta to Porto from $312

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 3/14. 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

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 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.

Popular cities in Portugal

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

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