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

Prices for flights from Porto Airport to Atlanta Hartsfield-Jackson Airport were last updated today.

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

As of August 2026, there is 1 operator available to choose from for flights from Porto Airport to Atlanta Hartsfield-Jackson Airport.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Porto Airport to Atlanta Hartsfield-Jackson Airport.

What documentation or ID do you need to fly to Atlanta Hartsfield-Jackson Airport?

The required travel and health documents for your Atlanta Hartsfield-Jackson Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Atlanta Hartsfield-Jackson Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$432 Cheap Flights from Porto to Atlanta in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Porto to Atlanta

Round-trip

One-way

Cheap round-trip flights

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7:00 am - 11:43 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

21h 43m2 stops Lisbon Humberto Delgado Miami

8:35 am - 11:00 pmATL Atlanta Hartsfield-Jackson-OPO Porto

33h 25m2 stops Miami Lisbon Humberto Delgado

$689Multiple Airlines

Thu, Sep 17 - Sun, Sep 20

7:00 am - 11:43 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

21h 43m2 stops Lisbon Humberto Delgado Miami

7:30 am - 5:00 pmATL Atlanta Hartsfield-Jackson-OPO Porto

28h 30m3 stops Baltimore/Washington Miami Lisbon Humberto Delgado

$744Multiple Airlines

Thu, Sep 17 - Sun, Sep 20

11:35 am - 8:25 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

13h 50m1 stop Amsterdam Schiphol

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

14h 20m1 stop Paris Charles de Gaulle

$915KLM

Tue, Sep 22 - Tue, Sep 29

6:00 am - 7:32 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

18h 32m2 stops Frankfurt am Main Newark

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

22h 45m1 stop Newark

$915United Airlines

Thu, Sep 17 - Sun, Sep 20

6:00 am - 12:23 amOPO Porto-ATL Atlanta Hartsfield-Jackson

23h 23m2 stops Frankfurt am Main Washington, D.C. Dulles Intl

5:40 am - 9:45 amATL Atlanta Hartsfield-Jackson-OPO Porto

23h 05m2 stops Washington, D.C. Dulles Intl Newark

$915United Airlines

Thu, Oct 8 - Thu, Oct 15

6:00 am - 7:37 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

18h 37m2 stops Frankfurt am Main Washington, D.C. Dulles Intl

8:00 am - 9:45 amATL Atlanta Hartsfield-Jackson-OPO Porto

20h 45m2 stops Chicago O'Hare Intl Newark

$915United Airlines

Tue, Sep 22 - Tue, Sep 29

6:00 am - 7:37 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

18h 37m2 stops Frankfurt am Main Washington, D.C. Dulles Intl

6:15 pm - 9:45 amATL Atlanta Hartsfield-Jackson-OPO Porto

10h 30m1 stop Newark

$915United Airlines

Tue, Sep 22 - Tue, Sep 29

6:00 am - 5:55 pmOPO Porto-ATL Atlanta Hartsfield-Jackson

40h 55m2 stops Frankfurt am Main Houston George Bush Intcntl

6:30 am - 9:45 amATL Atlanta Hartsfield-Jackson-OPO Porto

22h 15m1 stop Newark

$915United Airlines

Thu, Oct 8 - Thu, Oct 15

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

14h 00m1 stop Amsterdam Schiphol

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

18h 35m1 stop Paris Charles de Gaulle

$927Delta

Thu, Sep 17 - Sun, Sep 20

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

30h 35m1 stop Frankfurt am Main

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

19h 16m1 stop Newark

$929United Airlines

Thu, Sep 24 - Sun, Sep 27

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United Airlines flights from Porto to Atlanta

Our best United Airlines deals on Porto to Atlanta flight tickets

United Airlines

Sep 22

OPO6:00 amPorto

18h 37m

2 stops

ATL7:37 pmAtlanta Hartsfield-Jackson

Sep 29

ATL8:00 amAtlanta Hartsfield-Jackson

20h 45m

2 stops

OPO9:45 amPorto

$915

United Airlines

Sep 24

OPO12:10 pmPorto

30h 35m

1 stop

ATL1:45 pmAtlanta Hartsfield-Jackson

Sep 27

ATL9:29 amAtlanta Hartsfield-Jackson

19h 16m

1 stop

OPO9:45 amPorto

$929

United Airlines

Sep 24

OPO12:10 pmPorto

30h 35m

1 stop

ATL1:45 pmAtlanta Hartsfield-Jackson

Sep 27

ATL9:29 amAtlanta Hartsfield-Jackson

19h 16m

1 stop

OPO9:45 amPorto

$930

Ethiopian Air flights from Porto to Atlanta

Our best Ethiopian Air deals on Porto to Atlanta flight tickets

Ethiopian Air

Sep 17

OPO7:55 pmPorto

47h 43m

4 stops

ATL2:38 pmAtlanta Hartsfield-Jackson

Sep 20

ATL5:30 amAtlanta Hartsfield-Jackson

44h 45m

3 stops

OPO7:15 amPorto

$3,321

Ethiopian Air

Sep 22

OPO7:55 pmPorto

47h 48m

4 stops

ATL2:43 pmAtlanta Hartsfield-Jackson

Sep 29

ATL5:40 amAtlanta Hartsfield-Jackson

44h 35m

3 stops

OPO7:15 amPorto

$4,304

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortoAtlanta

OPO Porto - ATL Atlanta Hartsfield-Jackson

OPOATL

Porto

Thu 9/17

7:00 am-11:43 pm

2 stops21h 43m

Atlanta Hartsfield-Jackson

Sun 9/20

8:35 am-11:00 pm

2 stops33h 25m

$689

PortoAtlanta

OPO Porto - ATL Atlanta Hartsfield-Jackson

OPOATL

Porto

Thu 9/17

7:00 am-11:43 pm

2 stops21h 43m

Atlanta Hartsfield-Jackson

Sun 9/20

7:30 am-5:00 pm

3 stops28h 30m

$744

Quickest round-trip

PortoAtlanta

OPO Porto - ATL Atlanta Hartsfield-Jackson

OPOATL

Porto

Tue 9/22

11:35 am-8:25 pm

1 stop13h 50m

Atlanta Hartsfield-Jackson

Tue 9/29

8:05 pm-3:25 pm

1 stop14h 20m

$915

PortoAtlanta

OPO Porto - ATL Atlanta Hartsfield-Jackson

OPOATL

Porto

Thu 9/17

6:00 am-7:32 pm

2 stops18h 32m

Atlanta Hartsfield-Jackson

Sun 9/20

6:00 am-9:45 am

1 stop22h 45m

$915

PortoAtlanta

OPO Porto - ATL Atlanta Hartsfield-Jackson

OPOATL

Porto

Thu 10/8

6:00 am-12:23 am

2 stops23h 23m

Atlanta Hartsfield-Jackson

Thu 10/15

5:40 am-9:45 am

2 stops23h 05m

$915

PortoAtlanta

OPO Porto - ATL Atlanta Hartsfield-Jackson

OPOATL

Porto

Tue 9/22

6:00 am-7:37 pm

2 stops18h 37m

Atlanta Hartsfield-Jackson

Tue 9/29

8:00 am-9:45 am

2 stops20h 45m

$915

PortoAtlanta

OPO Porto - ATL Atlanta Hartsfield-Jackson

OPOATL

Porto

Tue 9/22

6:00 am-7:37 pm

2 stops18h 37m

Atlanta Hartsfield-Jackson

Tue 9/29

6:15 pm-9:45 am

1 stop10h 30m

$915

PortoAtlanta

OPO Porto - ATL Atlanta Hartsfield-Jackson

OPOATL

Porto

Thu 10/8

6:00 am-5:55 pm

2 stops40h 55m

Atlanta Hartsfield-Jackson

Thu 10/15

6:30 am-9:45 am

1 stop22h 15m

$915

PortoAtlanta

OPO Porto - ATL Atlanta Hartsfield-Jackson

OPOATL

Porto

Thu 9/17

5:00 am-2:00 pm

1 stop14h 00m

Atlanta Hartsfield-Jackson

Sun 9/20

3:55 pm-3:30 pm

1 stop18h 35m

$927

PortoAtlanta

OPO Porto - ATL Atlanta Hartsfield-Jackson

OPOATL

Porto

Thu 9/24

12:10 pm-1:45 pm

1 stop30h 35m

Atlanta Hartsfield-Jackson

Sun 9/27

9:29 am-9:45 am

1 stop19h 16m

$929

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 Porto to Atlanta

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

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

Prices are currently low for flights on this route.

Typical prices usually range from $1,023 to $1,146.
The lowest price recently found on this route was $689.

What is the cheapest month to fly to Atlanta?

The month of January is, on average, the cheapest month to fly to Atlanta from Porto, with most prices found around $0. If you aren’t able to travel to Atlanta during the month of January, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $867.

Can stopping save me money on Porto to Atlanta flights?

You could potentially save up to 12% on your flight if you consider stops on a Porto to Atlanta flight.

When to book flights from Porto to Atlanta

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

Estimated round-trip price

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

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

Best Price Found	$432
Fastest flight time	21h 43m
Direct flights	None

The best one-way flight to Atlanta from Porto in the past 72 hours is $432. The best round-trip flight deal from Porto to Atlanta found on momondo in the last 72 hours is $689.

The fastest flight from Porto to Atlanta takes 21h 43m

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

Search flight deals

Frequently asked questions about flying from Porto to Atlanta

How far is Porto to Atlanta Hartsfield-Jackson by plane?
The straight-line distance from Porto to Atlanta Hartsfield-Jackson is 4052.2 mi. In terms of flight time, this usually takes a little over 21h 43m.
When did momondo last update prices for flights from Porto Airport to Atlanta Hartsfield-Jackson Airport?
Prices for flights from Porto Airport to Atlanta Hartsfield-Jackson Airport were last updated today.
How many operators does momondo search for flights from Porto Airport to Atlanta Hartsfield-Jackson Airport?
As of August 2026, there is 1 operator available to choose from for flights from Porto Airport to Atlanta Hartsfield-Jackson Airport.
How old do you have to be to fly from Porto Airport to Atlanta Hartsfield-Jackson Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Porto Airport to Atlanta Hartsfield-Jackson Airport.
What documentation or ID do you need to fly to Atlanta Hartsfield-Jackson Airport?
The required travel and health documents for your Atlanta Hartsfield-Jackson Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Atlanta Hartsfield-Jackson Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Porto to Atlanta?
momondo data reveals that the most frequently booked airline on the route from Porto to Atlanta is KLM, representing 100% of all bookings.

Best airlines flying from Porto to Atlanta

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

Airline	Rating	Free Cancellation	Price
KLM	PriceFrom $871	Free Cancellation	Rating 7.8 1,565 reviews		Search KLM flights

Helen

Marietta

Duluth

McDonough

Warner Robins

Blue Ridge

Stone Mountain

Norcross

Cartersville

Lawrenceville

Douglasville

Kennesaw

College Park

Gainesville

Conyers

Covington

Newnan

La Grange

Dahlonega

Auburn

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Porto to Atlanta. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo enables you to select and highlight flights to Atlanta from Porto with this policy.

How can momondo help me find flights from Porto to Atlanta?

momondo helps you find the best flight between Porto and Atlanta by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes momondo offers price alerts on flights to Atlanta from Porto. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Cheap flights from Porto to Atlanta from $432

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Porto to Atlanta departing on 10/7. 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 Porto to Atlanta

Our best United Airlines deals on Porto to Atlanta flight tickets

Ethiopian Air flights from Porto to Atlanta

Our best Ethiopian Air deals on Porto to Atlanta flight tickets

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How to get the cheapest flight ticket from Porto to Atlanta

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

What is the cheapest month to fly to Atlanta?

Can stopping save me money on Porto to Atlanta flights?

When to book flights from Porto to Atlanta

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

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Porto to Atlanta

Best airlines flying from Porto to Atlanta

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

Traveling to a place near Atlanta?

Why use momondo?

An easier way to manage your Atlanta 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 the United States

Airports servicing Georgia

Fly your favorite airline to Atlanta

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

Cabin classes currently available on flights to Atlanta

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

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