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Cheap flights from Porto to Atlanta from $378

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 9/30. 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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Find the cheapest flights from Porto to Atlanta

Cheap round-trip flights

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
5:50 pm - 6:45 pm
OPO
-
ATL
28h 55m
1 stop
Scandinavian Airlines Logo
8:00 pm - 5:00 pm
ATL
-
OPO
16h 00m
1 stop
$804Scandinavian Airlines
Thu, Oct 29 - Wed, Nov 11
Scandinavian Airlines Logo
11:50 am - 5:05 pm
OPO
-
ATL
34h 15m
1 stop
Scandinavian Airlines Logo
7:30 pm - 5:40 pm
ATL
-
OPO
17h 10m
1 stop
$859Scandinavian Airlines
Wed, May 27 - Sat, May 30
Multiple Airlines Logo
6:05 pm - 8:43 am
OPO
-
ATL
19h 38m
1 stop
Multiple Airlines Logo
7:02 pm - 11:45 am
ATL
-
OPO
11h 43m
1 stop
$888Multiple Airlines
Sun, Oct 18 - Sat, Oct 24
Air Canada Logo
8:40 am - 9:21 pm
OPO
-
ATL
17h 41m
2 stops
Air Canada Logo
1:20 pm - 7:00 am
ATL
-
OPO
12h 40m
1 stop
$891Air Canada
Thu, May 28 - Wed, Jun 10
Lufthansa Logo
4:35 pm - 1:45 pm
OPO
-
ATL
26h 10m
1 stop
Lufthansa Logo
4:55 pm - 11:40 am
ATL
-
OPO
13h 45m
1 stop
$892Lufthansa
Thu, Oct 15 - Tue, Nov 10
United Airlines Logo
6:00 am - 12:30 am
OPO
-
ATL
23h 30m
2 stops
United Airlines Logo
11:29 am - 6:55 am
ATL
-
OPO
14h 26m
2 stops
$900United Airlines
Thu, May 28 - Mon, Jun 1
United Airlines Logo
6:00 am - 7:16 pm
OPO
-
ATL
18h 16m
2 stops
United Airlines Logo
1:18 pm - 9:45 am
ATL
-
OPO
15h 27m
2 stops
$902United Airlines
Thu, May 28 - Mon, Jun 1
United Airlines Logo
12:10 pm - 12:30 am
OPO
-
ATL
17h 20m
2 stops
United Airlines Logo
7:15 am - 6:55 am
ATL
-
OPO
18h 40m
1 stop
$904United Airlines
Thu, May 28 - Wed, Jun 10
United Airlines Logo
6:00 am - 11:35 pm
OPO
-
ATL
22h 35m
2 stops
United Airlines Logo
8:27 pm - 6:15 am
ATL
-
OPO
28h 48m
2 stops
$905United Airlines
Mon, Jun 8 - Mon, Jun 15
Air Canada Logo
8:40 am - 9:21 pm
OPO
-
ATL
17h 41m
2 stops
Air Canada Logo
1:20 pm - 12:05 pm
ATL
-
OPO
17h 45m
2 stops
$907Air Canada
Thu, May 28 - Wed, Jun 10

Scandinavian Airlines flights from Porto to Atlanta

Our best Scandinavian Airlines deals on Porto to Atlanta flight tickets
Scandinavian Airlines
Oct 29
OPO5:50 pmPorto
28h 55m
1 stop
ATL6:45 pmAtlanta Hartsfield-Jackson
Nov 11
ATL8:00 pmAtlanta Hartsfield-Jackson
16h 00m
1 stop
OPO5:00 pmPorto
$804
Scandinavian Airlines
May 27
OPO11:50 amPorto
34h 15m
1 stop
ATL5:05 pmAtlanta Hartsfield-Jackson
May 30
ATL7:30 pmAtlanta Hartsfield-Jackson
17h 10m
1 stop
OPO5:40 pmPorto
$859
Scandinavian Airlines
Oct 25
OPO5:35 pmPorto
29h 25m
1 stop
ATL7:00 pmAtlanta Hartsfield-Jackson
Nov 9
ATL8:00 pmAtlanta Hartsfield-Jackson
34h 05m
1 stop
OPO11:05 amPorto
$966

United Airlines flights from Porto to Atlanta

Our best United Airlines deals on Porto to Atlanta flight tickets
United Airlines
May 28
OPO6:00 amPorto
23h 30m
2 stops
ATL12:30 amAtlanta Hartsfield-Jackson
Jun 1
ATL11:29 amAtlanta Hartsfield-Jackson
14h 26m
2 stops
OPO6:55 amPorto
$900
United Airlines
May 28
OPO6:00 amPorto
18h 16m
2 stops
ATL7:16 pmAtlanta Hartsfield-Jackson
Jun 1
ATL1:18 pmAtlanta Hartsfield-Jackson
15h 27m
2 stops
OPO9:45 amPorto
$902
United Airlines
May 28
OPO12:10 pmPorto
17h 20m
2 stops
ATL12:30 amAtlanta Hartsfield-Jackson
Jun 10
ATL7:15 amAtlanta Hartsfield-Jackson
18h 40m
1 stop
OPO6:55 amPorto
$904

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 May 16, 2026.
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

Cheapest round-trip

PortoAtlanta

OPO - ATL

OPOATL

Porto

Thu 10/29

5:50 pm-6:45 pm

1 stop28h 55m

Atlanta Hartsfield-Jackson

Wed 11/11

8:00 pm-5:00 pm

1 stop16h 00m

$804

PortoAtlanta

OPO - ATL

OPOATL

Porto

Wed 5/27

11:50 am-5:05 pm

1 stop34h 15m

Atlanta Hartsfield-Jackson

Sat 5/30

7:30 pm-5:40 pm

1 stop17h 10m

$859

PortoAtlanta

OPO - ATL

OPOATL

Porto

Sun 10/18

6:05 pm-8:43 am

1 stop19h 38m

Atlanta Hartsfield-Jackson

Sat 10/24

7:02 pm-11:45 am

1 stop11h 43m

$888
Quickest round-trip

PortoAtlanta

OPO - ATL

OPOATL

Porto

Thu 5/28

8:40 am-9:21 pm

2 stops17h 41m

Atlanta Hartsfield-Jackson

Wed 6/10

1:20 pm-7:00 am

1 stop12h 40m

$891

PortoAtlanta

OPO - ATL

OPOATL

Porto

Thu 10/15

4:35 pm-1:45 pm

1 stop26h 10m

Atlanta Hartsfield-Jackson

Tue 11/10

4:55 pm-11:40 am

1 stop13h 45m

$892

PortoAtlanta

OPO - ATL

OPOATL

Porto

Thu 5/28

6:00 am-12:30 am

2 stops23h 30m

Atlanta Hartsfield-Jackson

Mon 6/1

11:29 am-6:55 am

2 stops14h 26m

$900

PortoAtlanta

OPO - ATL

OPOATL

Porto

Thu 5/28

6:00 am-7:16 pm

2 stops18h 16m

Atlanta Hartsfield-Jackson

Mon 6/1

1:18 pm-9:45 am

2 stops15h 27m

$902

PortoAtlanta

OPO - ATL

OPOATL

Porto

Thu 5/28

12:10 pm-12:30 am

2 stops17h 20m

Atlanta Hartsfield-Jackson

Wed 6/10

7:15 am-6:55 am

1 stop18h 40m

$904

PortoAtlanta

OPO - ATL

OPOATL

Porto

Mon 6/8

6:00 am-11:35 pm

2 stops22h 35m

Atlanta Hartsfield-Jackson

Mon 6/15

8:27 pm-6:15 am

2 stops28h 48m

$905

PortoAtlanta

OPO - ATL

OPOATL

Porto

Thu 5/28

8:40 am-9:21 pm

2 stops17h 41m

Atlanta Hartsfield-Jackson

Wed 6/10

1:20 pm-12:05 pm

2 stops17h 45m

$907

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

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 $808.

Can stopping save me money on Porto to Atlanta flights?

You could potentially save up to 49% 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

Fastest flight time

18h 16m

Direct flights

None
The fastest flight from Porto to Atlanta takes 18h 16m
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 18h 16m.

  • 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 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.

Traveling to a place near Atlanta?

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

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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