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Cheap flights from Porto to Atlanta from $391

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 4/24. 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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0 bags

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Find the cheapest flights from Porto to Atlanta

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:35 am - 9:02 amOPO-ATL
26h 27m2 stops
Multiple Airlines Logo
9:57 am - 7:20 pmATL-OPO
28h 23m2 stops
$582Multiple Airlines
Find Deal
Thu, Jan 15 - Wed, Jan 28
Multiple Airlines Logo
8:55 am - 8:10 pmOPO-ATL
16h 15m2 stops
Multiple Airlines Logo
7:07 pm - 11:55 amATL-OPO
11h 48m1 stop
$633Multiple Airlines
Find Deal
Wed, Jan 14 - Wed, Jan 21
Multiple Airlines Logo
10:00 am - 7:58 amOPO-ATL
26h 58m2 stops
Multiple Airlines Logo
8:08 pm - 11:00 amATL-OPO
33h 52m3 stops
$648Multiple Airlines
Find Deal
Wed, Jan 14 - Wed, Jan 21
Multiple Airlines Logo
10:00 am - 7:58 amOPO-ATL
26h 58m2 stops
Multiple Airlines Logo
8:08 pm - 11:00 amATL-OPO
33h 52m3 stops
$665Multiple Airlines
Find Deal
Wed, Jan 14 - Wed, Jan 21
Multiple Airlines Logo
10:00 am - 4:38 pmOPO-ATL
35h 38m3 stops
Multiple Airlines Logo
8:08 pm - 11:00 amATL-OPO
33h 52m3 stops
$667Multiple Airlines
Find Deal
Wed, Jan 14 - Wed, Jan 21
Multiple Airlines Logo
9:00 am - 8:10 pmOPO-ATL
16h 10m2 stops
Multiple Airlines Logo
7:07 pm - 11:55 amATL-OPO
11h 48m1 stop
$671Multiple Airlines
Find Deal
Thu, Jan 15 - Wed, Jan 28
Multiple Airlines Logo
10:00 am - 4:38 pmOPO-ATL
35h 38m3 stops
Multiple Airlines Logo
8:08 pm - 9:55 amATL-OPO
32h 47m3 stops
$684Multiple Airlines
Find Deal
Wed, Jan 14 - Wed, Jan 21
British Airways Logo
5:35 pm - 8:10 pmOPO-ATL
31h 35m1 stop
British Airways Logo
10:10 pm - 4:45 pmATL-OPO
13h 35m1 stop
$695British Airways
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Thu, Jan 15 - Wed, Jan 28
Multiple Airlines Logo
8:55 am - 8:10 pmOPO-ATL
16h 15m2 stops
Multiple Airlines Logo
7:07 pm - 11:55 amATL-OPO
11h 48m1 stop
$709Multiple Airlines
Find Deal
Wed, Jan 14 - Wed, Jan 21
Multiple Airlines Logo
6:35 pm - 7:58 amOPO-ATL
18h 23m1 stop
Multiple Airlines Logo
7:07 pm - 11:55 amATL-OPO
11h 48m1 stop
$717Multiple Airlines
Find Deal
Wed, Jan 14 - Wed, Jan 21

American Airlines flights from Porto to Atlanta

Our best American Airlines deals on Porto to Atlanta flight tickets
American Airlines
Jan 24
OPO8:20 amPorto
15h 30m
2 stops
ATL6:50 pmAtlanta Hartsfield-Jackson
Jan 26
ATL11:17 amAtlanta Hartsfield-Jackson
23h 43m
2 stops
OPO4:00 pmPorto
$729
Find similar
American Airlines
Jan 24
OPO8:20 amPorto
18h 16m
2 stops
ATL9:36 pmAtlanta Hartsfield-Jackson
Jan 26
ATL10:24 amAtlanta Hartsfield-Jackson
20h 21m
2 stops
OPO11:45 amPorto
$730
Find similar
American Airlines
Dec 14
OPO12:25 pmPorto
17h 27m
2 stops
ATL12:52 amAtlanta Hartsfield-Jackson
Dec 30
ATL1:12 pmAtlanta Hartsfield-Jackson
13h 28m
2 stops
OPO7:40 amPorto
$797
Find similar

United Airlines flights from Porto to Atlanta

Our best United Airlines deals on Porto to Atlanta flight tickets
United Airlines
Jan 8
OPO6:00 amPorto
17h 26m
2 stops
ATL6:26 pmAtlanta Hartsfield-Jackson
Jan 15
ATL6:30 amAtlanta Hartsfield-Jackson
24h 10m
3 stops
OPO11:40 amPorto
$762
Find similar
United Airlines
Dec 14
OPO12:30 pmPorto
31h 00m
1 stop
ATL2:30 pmAtlanta Hartsfield-Jackson
Dec 30
ATL4:55 pmAtlanta Hartsfield-Jackson
13h 45m
1 stop
OPO11:40 amPorto
$775
Find similar
United Airlines
Dec 24
OPO6:00 amPorto
33h 29m
2 stops
ATL10:29 amAtlanta Hartsfield-Jackson
Jan 3
ATL5:30 amAtlanta Hartsfield-Jackson
48h 05m
2 stops
OPO10:35 amPorto
$957
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momondo Fare Finder

 
Customize your flight search to find flights from Porto to Atlanta that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated November 26, 2025.
Use the filters below to find and compare flights from Porto to Atlanta that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortoAtlanta

OPO - ATL

OPOATL

Porto

Thu 1/15

11:35 am-9:02 am

2 stops26h 27m

Atlanta Hartsfield-Jackson

Wed 1/28

9:57 am-7:20 pm

2 stops28h 23m

$582

PortoAtlanta

OPO - ATL

OPOATL

Porto

Wed 1/14

8:55 am-8:10 pm

2 stops16h 15m

Atlanta Hartsfield-Jackson

Wed 1/21

7:07 pm-11:55 am

1 stop11h 48m

$633

PortoAtlanta

OPO - ATL

OPOATL

Porto

Wed 1/14

10:00 am-7:58 am

2 stops26h 58m

Atlanta Hartsfield-Jackson

Wed 1/21

8:08 pm-11:00 am

3 stops33h 52m

$648

PortoAtlanta

OPO - ATL

OPOATL

Porto

Wed 1/14

10:00 am-7:58 am

2 stops26h 58m

Atlanta Hartsfield-Jackson

Wed 1/21

8:08 pm-11:00 am

3 stops33h 52m

$665

PortoAtlanta

OPO - ATL

OPOATL

Porto

Wed 1/14

10:00 am-4:38 pm

3 stops35h 38m

Atlanta Hartsfield-Jackson

Wed 1/21

8:08 pm-11:00 am

3 stops33h 52m

$667

PortoAtlanta

OPO - ATL

OPOATL

Porto

Thu 1/15

9:00 am-8:10 pm

2 stops16h 10m

Atlanta Hartsfield-Jackson

Wed 1/28

7:07 pm-11:55 am

1 stop11h 48m

$671

PortoAtlanta

OPO - ATL

OPOATL

Porto

Wed 1/14

10:00 am-4:38 pm

3 stops35h 38m

Atlanta Hartsfield-Jackson

Wed 1/21

8:08 pm-9:55 am

3 stops32h 47m

$684

PortoAtlanta

OPO - ATL

OPOATL

Porto

Thu 1/15

5:35 pm-8:10 pm

1 stop31h 35m

Atlanta Hartsfield-Jackson

Wed 1/28

10:10 pm-4:45 pm

1 stop13h 35m

$695

PortoAtlanta

OPO - ATL

OPOATL

Porto

Wed 1/14

8:55 am-8:10 pm

2 stops16h 15m

Atlanta Hartsfield-Jackson

Wed 1/21

7:07 pm-11:55 am

1 stop11h 48m

$709

PortoAtlanta

OPO - ATL

OPOATL

Porto

Wed 1/14

6:35 pm-7:58 am

1 stop18h 23m

Atlanta Hartsfield-Jackson

Wed 1/21

7:07 pm-11:55 am

1 stop11h 48m

$717

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Atlanta from

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 cheapest month to fly to Atlanta?

The month of February is, on average, the cheapest month to fly to Atlanta from Porto, with most prices found around $701. If you aren’t able to travel to Atlanta during the month of February, then flying in June is also cheap. Prices for this month can be found on momondo for an average of $790.

What is the cheapest day to depart on your flight to Atlanta?

Our data shows that Thursday is the least expensive day to fly to Atlanta. Tickets to fly out on this day can be as low as $823. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Atlanta on Saturday is $1,373.

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

Fastest flight time

16h 15m

Direct flights

None
The fastest flight from Porto to Atlanta takes 16h 15m
There are no direct flights from Porto to Atlanta. There are no popular flight routes from Porto to Atlanta.
Search flight deals

  • 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 13h 55m.

  • 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?

  • 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?

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
KLMPriceFrom $871Free CancellationRating
7.7
1,423 reviews
Search KLM flights

Traveling to a place near Atlanta?

Book flights to Atlanta if you plan to visit one of these locations
Helen
Marietta
McDonough
Duluth
Blue Ridge
Warner Robins
Lawrenceville
Dahlonega
Stone Mountain
Covington
Cartersville
Norcross
Auburn
Gadsden
Newnan
Conyers
Gainesville
Kennesaw
Lithonia
La Grange

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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