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 connection time from Atlanta to Porto?

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

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: 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

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.

$286 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.

10:15 pm - 4:50 pmATL Atlanta Hartsfield-Jackson-OPO Porto

13h 35m1 stop London Heathrow

8:20 am - 9:28 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

18h 08m2 stops Madrid Barajas Miami

$549British Airways

Wed, Dec 2 - Wed, Dec 9

10:37 am - 7:40 amATL Atlanta Hartsfield-Jackson-OPO Porto

16h 03m2 stops Charlotte Douglas Madrid Barajas

8:20 am - 10:46 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

19h 26m2 stops Madrid Barajas Miami

$560Multiple Airlines

Wed, Dec 2 - Wed, Dec 9

7:30 am - 7:15 amATL Atlanta Hartsfield-Jackson-OPO Porto

19h 45m1 stop New York LaGuardia

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

20h 40m1 stop Amsterdam Schiphol

$566Delta

Sun, Oct 25 - Tue, Nov 10

4:54 pm - 10:30 amATL Atlanta Hartsfield-Jackson-OPO Porto

12h 36m1 stop New York John F Kennedy Intl

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

20h 40m1 stop Amsterdam Schiphol

$570Delta

Tue, Oct 13 - Tue, Nov 3

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

17h 16m1 stop New York John F Kennedy Intl

5:00 am - 1:35 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

13h 35m1 stop Amsterdam Schiphol

$570KLM

Wed, Nov 11 - Wed, Nov 18

5:50 pm - 9:30 amATL Atlanta Hartsfield-Jackson-OPO Porto

10h 40m1 stop Newark

12:35 pm - 11:01 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

14h 26m1 stop Newark

$571United Airlines

Tue, Mar 2 - Wed, Mar 17

5:50 pm - 9:30 amATL Atlanta Hartsfield-Jackson-OPO Porto

10h 40m1 stop Newark

12:35 pm - 11:01 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

14h 26m1 stop Newark

$571United Airlines

Sun, Feb 28 - Wed, Mar 17

9:45 am - 8:15 amATL Atlanta Hartsfield-Jackson-OPO Porto

17h 30m1 stop New York John F Kennedy Intl

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

14h 25m1 stop Amsterdam Schiphol

$618KLM

Fri, Nov 6 - Tue, Nov 10

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

36h 50m1 stop Istanbul

4:50 pm - 7:45 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

31h 55m1 stop Istanbul

$787Turkish Airlines

Mon, Sep 28 - Tue, Oct 6

9:50 pm - 9:45 amATL Atlanta Hartsfield-Jackson-OPO Porto

30h 55m1 stop Istanbul

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

38h 05m1 stop Istanbul

$789Turkish Airlines

Mon, Sep 28 - Tue, Oct 6

Cheap last minute flights

Enter your travel dates to find the best prices.

7:55 pm - 3:30 pmATL Atlanta Hartsfield-Jackson-OPO Porto

14h 35m1 stop Amsterdam Schiphol

5:55 am - 8:09 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

19h 14m2 stops Paris Charles de Gaulle Washington, D.C. Dulles Intl

$1,150Delta

Fri, Sep 18 - Sat, Oct 3

6:00 pm - 3:25 pmATL Atlanta Hartsfield-Jackson-OPO Porto

16h 25m1 stop Paris Charles de Gaulle

5:55 am - 8:09 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

19h 14m2 stops Paris Charles de Gaulle Washington, D.C. Dulles Intl

$1,165Delta

Fri, Sep 18 - Sat, Oct 3

12:28 pm - 10:40 amATL Atlanta Hartsfield-Jackson-OPO Porto

17h 12m2 stops Washington, D.C. Dulles Intl Amsterdam Schiphol

5:55 am - 8:09 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

19h 14m2 stops Paris Charles de Gaulle Washington, D.C. Dulles Intl

$1,174Delta

Fri, Sep 18 - Sat, Oct 3

12:28 pm - 10:40 amATL Atlanta Hartsfield-Jackson-OPO Porto

17h 12m2 stops Washington, D.C. Dulles Intl Amsterdam Schiphol

5:55 am - 8:09 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

19h 14m2 stops Paris Charles de Gaulle Washington, D.C. Dulles Intl

$1,217Delta

Fri, Sep 18 - Sat, Oct 3

9:00 am - 9:45 amATL Atlanta Hartsfield-Jackson-OPO Porto

19h 45m1 stop Newark

12:05 pm - 1:45 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

30h 40m1 stop Frankfurt am Main

$1,239United Airlines

Fri, Sep 18 - Sat, Oct 3

9:00 am - 9:45 amATL Atlanta Hartsfield-Jackson-OPO Porto

19h 45m1 stop Newark

12:05 pm - 1:45 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

30h 40m1 stop Frankfurt am Main

$1,248United Airlines

Fri, Sep 18 - Sat, Oct 3

6:00 am - 9:45 amATL Atlanta Hartsfield-Jackson-OPO Porto

22h 45m1 stop Newark

12:05 pm - 1:45 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

30h 40m1 stop Frankfurt am Main

$1,259United Airlines

Fri, Sep 18 - Sat, Oct 3

10:47 am - 9:45 amATL Atlanta Hartsfield-Jackson-OPO Porto

17h 58m1 stop Newark

12:05 pm - 1:45 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

30h 40m1 stop Frankfurt am Main

$1,422United Airlines

Fri, Sep 18 - Sat, Oct 3

12:40 pm - 10:55 amATL Atlanta Hartsfield-Jackson-OPO Porto

17h 15m1 stop Boston Logan Intl

9:00 am - 11:49 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

19h 49m2 stops Lisbon Humberto Delgado Boston Logan Intl

$7,373TAP AIR PORTUGAL

Mon, Sep 14 - Fri, Sep 18

10:35 pm - 8:05 pmATL Atlanta Hartsfield-Jackson-OPO Porto

16h 30m1 stop London Heathrow

9:25 pm - 8:40 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

28h 15m1 stop London Gatwick

$11,151British Airways

Mon, Sep 14 - Fri, Sep 18

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United Airlines flights from Atlanta to Porto

Our best United Airlines deals on Atlanta to Porto flight tickets

United Airlines

Feb 28

ATL5:50 pmAtlanta Hartsfield-Jackson

10h 40m

1 stop

OPO9:30 amPorto

Mar 16

OPO12:35 pmPorto

24h 15m

1 stop

ATL8:50 amAtlanta Hartsfield-Jackson

$577

United Airlines

Oct 26

ATL6:00 amAtlanta Hartsfield-Jackson

23h 30m

1 stop

OPO9:30 amPorto

Nov 11

OPO12:35 pmPorto

31h 05m

1 stop

ATL2:40 pmAtlanta Hartsfield-Jackson

$595

United Airlines

Mar 1

ATL11:00 amAtlanta Hartsfield-Jackson

17h 30m

1 stop

OPO9:30 amPorto

Mar 8

OPO12:30 pmPorto

31h 10m

1 stop

ATL2:40 pmAtlanta Hartsfield-Jackson

$599

Delta flights from Atlanta to Porto

Our best Delta deals on Atlanta to Porto flight tickets

Delta

Oct 25

ATL7:30 amAtlanta Hartsfield-Jackson

19h 45m

1 stop

OPO7:15 amPorto

Nov 10

OPO5:00 amPorto

20h 40m

1 stop

ATL8:40 pmAtlanta Hartsfield-Jackson

$566

Delta

Oct 13

ATL4:54 pmAtlanta Hartsfield-Jackson

12h 36m

1 stop

OPO10:30 amPorto

Nov 3

OPO5:00 amPorto

20h 40m

1 stop

ATL8:40 pmAtlanta Hartsfield-Jackson

$570

Delta

Oct 25

ATL2:30 pmAtlanta Hartsfield-Jackson

12h 45m

1 stop

OPO7:15 amPorto

Nov 10

OPO5:55 amPorto

22h 23m

2 stops

ATL11:18 pmAtlanta Hartsfield-Jackson

$572

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AtlantaPorto

ATL Atlanta Hartsfield-Jackson - OPO Porto

ATLOPO

Atlanta Hartsfield-Jackson

Wed 12/2

10:15 pm-4:50 pm

1 stop13h 35m

Porto

Wed 12/9

8:20 am-9:28 pm

2 stops18h 08m

$549

AtlantaPorto

ATL Atlanta Hartsfield-Jackson - OPO Porto

ATLOPO

Atlanta Hartsfield-Jackson

Wed 12/2

10:37 am-7:40 am

2 stops16h 03m

Porto

Wed 12/9

8:20 am-10:46 pm

2 stops19h 26m

$560

AtlantaPorto

ATL Atlanta Hartsfield-Jackson - OPO Porto

ATLOPO

Atlanta Hartsfield-Jackson

Sun 10/25

7:30 am-7:15 am

1 stop19h 45m

Porto

Tue 11/10

5:00 am-8:40 pm

1 stop20h 40m

$566

AtlantaPorto

ATL Atlanta Hartsfield-Jackson - OPO Porto

ATLOPO

Atlanta Hartsfield-Jackson

Tue 10/13

4:54 pm-10:30 am

1 stop12h 36m

Porto

Tue 11/3

5:00 am-8:40 pm

1 stop20h 40m

$570

AtlantaPorto

ATL Atlanta Hartsfield-Jackson - OPO Porto

ATLOPO

Atlanta Hartsfield-Jackson

Wed 11/11

9:59 am-8:15 am

1 stop17h 16m

Porto

Wed 11/18

5:00 am-1:35 pm

1 stop13h 35m

$570

Quickest round-trip

AtlantaPorto

ATL Atlanta Hartsfield-Jackson - OPO Porto

ATLOPO

Atlanta Hartsfield-Jackson

Tue 3/2

5:50 pm-9:30 am

1 stop10h 40m

Porto

Wed 3/17

12:35 pm-11:01 pm

1 stop14h 26m

$571

AtlantaPorto

ATL Atlanta Hartsfield-Jackson - OPO Porto

ATLOPO

Atlanta Hartsfield-Jackson

Sun 2/28

5:50 pm-9:30 am

1 stop10h 40m

Porto

Wed 3/17

12:35 pm-11:01 pm

1 stop14h 26m

$571

AtlantaPorto

ATL Atlanta Hartsfield-Jackson - OPO Porto

ATLOPO

Atlanta Hartsfield-Jackson

Fri 11/6

9:45 am-8:15 am

1 stop17h 30m

Porto

Tue 11/10

11:15 am-8:40 pm

1 stop14h 25m

$618

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

4:50 pm-7:45 pm

1 stop31h 55m

$787

AtlantaPorto

ATL Atlanta Hartsfield-Jackson - OPO Porto

ATLOPO

Atlanta Hartsfield-Jackson

Mon 9/28

9:50 pm-9:45 am

1 stop30h 55m

Porto

Tue 10/6

10:40 am-7:45 pm

1 stop38h 05m

$789

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 $549.

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 $865 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	$286
Fastest flight time	13h 45m
Direct flights	None

The best one-way flight to Porto from Atlanta in the past 72 hours is $286. The best round-trip flight deal from Atlanta to Porto found on momondo in the last 72 hours is $549.

The fastest flight from Atlanta to Porto takes 13h 45m

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. 13h 45m 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 1,576 reviews	Search KLM flights
Air France	PriceFrom $564	Free Cancellation	Rating 7.5 1,650 reviews	Search Air France flights
United Airlines	PriceFrom $592	Free Cancellation	Rating 7.4 10,212 reviews	Search United Airlines flights
Delta	PriceFrom $610	Free Cancellation	Rating 7.8 8,564 reviews	Search Delta flights
Turkish Airlines	PriceFrom $677	Free Cancellation	Rating 7.4 4,473 reviews	Search Turkish Airlines flights

Coimbra

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Aveiro

Braga

Pinhao

Matosinhos

Esposende

Chaves

Viseu

Arcos de Valdevez

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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Airports servicing Portugal

Faro Airport

Lisbon Humberto Delgado Airport

Azores Airport

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Algarve Airport

Cheap flights from Atlanta to Porto from $286

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 9/27. 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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United Airlines flights from Atlanta to Porto

Our best United Airlines deals on Atlanta to Porto flight tickets

Delta flights from Atlanta to Porto

Our best Delta 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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