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Cheap flights from Porto to Atlanta from $399

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 9/24. 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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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 - 5:45 pm
OPO
-
ATL
28h 55m
1 stop
Scandinavian Airlines Logo
8:00 pm - 11:05 am
ATL
-
OPO
34h 05m
1 stop
$756Scandinavian Airlines
Thu, Nov 19 - Mon, Nov 30
Scandinavian Airlines Logo
12:00 pm - 4:30 pm
OPO
-
ATL
33h 30m
1 stop
Scandinavian Airlines Logo
8:00 pm - 11:05 am
ATL
-
OPO
34h 05m
1 stop
$797Scandinavian Airlines
Sat, Nov 21 - Mon, Nov 30
Air Canada Logo
6:00 am - 4:19 pm
OPO
-
ATL
39h 19m
2 stops
Air Canada Logo
12:55 pm - 7:00 am
ATL
-
OPO
13h 05m
1 stop
$883Air Canada
Thu, Sep 10 - Mon, Sep 14
United Airlines Logo
6:00 am - 5:23 pm
OPO
-
ATL
16h 23m
2 stops
United Airlines Logo
2:30 pm - 9:30 am
ATL
-
OPO
14h 00m
2 stops
$894United Airlines
Tue, Nov 17 - Thu, Dec 3
United Airlines Logo
6:00 am - 7:54 pm
OPO
-
ATL
18h 54m
2 stops
United Airlines Logo
11:29 am - 6:55 am
ATL
-
OPO
14h 26m
2 stops
$895United Airlines
Sat, Jun 13 - Wed, Jun 17
Air Canada Logo
6:00 am - 4:19 pm
OPO
-
ATL
39h 19m
2 stops
Air Canada Logo
12:55 pm - 7:00 am
ATL
-
OPO
13h 05m
1 stop
$896Air Canada
Fri, Sep 25 - Tue, Oct 6
Air Canada Logo
6:00 am - 4:19 pm
OPO
-
ATL
39h 19m
2 stops
Air Canada Logo
8:40 pm - 7:00 am
ATL
-
OPO
29h 20m
2 stops
$900Air Canada
Fri, Sep 25 - Tue, Oct 6
Lufthansa Logo
6:00 am - 11:35 pm
OPO
-
ATL
22h 35m
2 stops
Lufthansa Logo
3:55 pm - 3:40 pm
ATL
-
OPO
18h 45m
1 stop
$903Lufthansa
Tue, Jun 16 - Wed, May 12
Multiple Airlines Logo
11:50 am - 9:10 pm
OPO
-
ATL
14h 20m
2 stops
Multiple Airlines Logo
12:55 pm - 11:15 am
ATL
-
OPO
17h 20m
2 stops
$905Multiple Airlines
Thu, Sep 10 - Mon, Sep 14
SWISS Logo
7:20 pm - 9:40 pm
OPO
-
ATL
31h 20m
2 stops
SWISS Logo
3:30 pm - 5:35 pm
ATL
-
OPO
21h 05m
2 stops
$906SWISS
Mon, Jun 15 - Tue, Apr 27

Scandinavian Airlines flights from Porto to Atlanta

Our best Scandinavian Airlines deals on Porto to Atlanta flight tickets
Scandinavian Airlines
Nov 19
OPO5:50 pmPorto
28h 55m
1 stop
ATL5:45 pmAtlanta Hartsfield-Jackson
Nov 30
ATL8:00 pmAtlanta Hartsfield-Jackson
34h 05m
1 stop
OPO11:05 amPorto
$756
Scandinavian Airlines
Nov 21
OPO12:00 pmPorto
33h 30m
1 stop
ATL4:30 pmAtlanta Hartsfield-Jackson
Nov 30
ATL8:00 pmAtlanta Hartsfield-Jackson
34h 05m
1 stop
OPO11:05 amPorto
$797

United Airlines flights from Porto to Atlanta

Our best United Airlines deals on Porto to Atlanta flight tickets
United Airlines
Nov 17
OPO6:00 amPorto
16h 23m
2 stops
ATL5:23 pmAtlanta Hartsfield-Jackson
Dec 3
ATL2:30 pmAtlanta Hartsfield-Jackson
14h 00m
2 stops
OPO9:30 amPorto
$894
United Airlines
Jun 13
OPO6:00 amPorto
18h 54m
2 stops
ATL7:54 pmAtlanta Hartsfield-Jackson
Jun 17
ATL11:29 amAtlanta Hartsfield-Jackson
14h 26m
2 stops
OPO6:55 amPorto
$895
United Airlines
Nov 16
OPO12:35 pmPorto
31h 05m
1 stop
ATL2:40 pmAtlanta Hartsfield-Jackson
Dec 2
ATL12:41 pmAtlanta Hartsfield-Jackson
15h 49m
1 stop
OPO9:30 amPorto
$909

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 June 1, 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 11/19

5:50 pm-5:45 pm

1 stop28h 55m

Atlanta Hartsfield-Jackson

Mon 11/30

8:00 pm-11:05 am

1 stop34h 05m

$756

PortoAtlanta

OPO - ATL

OPOATL

Porto

Sat 11/21

12:00 pm-4:30 pm

1 stop33h 30m

Atlanta Hartsfield-Jackson

Mon 11/30

8:00 pm-11:05 am

1 stop34h 05m

$797

PortoAtlanta

OPO - ATL

OPOATL

Porto

Thu 9/10

6:00 am-4:19 pm

2 stops39h 19m

Atlanta Hartsfield-Jackson

Mon 9/14

12:55 pm-7:00 am

1 stop13h 05m

$883
Quickest round-trip

PortoAtlanta

OPO - ATL

OPOATL

Porto

Tue 11/17

6:00 am-5:23 pm

2 stops16h 23m

Atlanta Hartsfield-Jackson

Thu 12/3

2:30 pm-9:30 am

2 stops14h 00m

$894

PortoAtlanta

OPO - ATL

OPOATL

Porto

Sat 6/13

6:00 am-7:54 pm

2 stops18h 54m

Atlanta Hartsfield-Jackson

Wed 6/17

11:29 am-6:55 am

2 stops14h 26m

$895

PortoAtlanta

OPO - ATL

OPOATL

Porto

Fri 9/25

6:00 am-4:19 pm

2 stops39h 19m

Atlanta Hartsfield-Jackson

Tue 10/6

12:55 pm-7:00 am

1 stop13h 05m

$896

PortoAtlanta

OPO - ATL

OPOATL

Porto

Fri 9/25

6:00 am-4:19 pm

2 stops39h 19m

Atlanta Hartsfield-Jackson

Tue 10/6

8:40 pm-7:00 am

2 stops29h 20m

$900

PortoAtlanta

OPO - ATL

OPOATL

Porto

Tue 6/16

6:00 am-11:35 pm

2 stops22h 35m

Atlanta Hartsfield-Jackson

Wed 5/12

3:55 pm-3:40 pm

1 stop18h 45m

$903

PortoAtlanta

OPO - ATL

OPOATL

Porto

Thu 9/10

11:50 am-9:10 pm

2 stops14h 20m

Atlanta Hartsfield-Jackson

Mon 9/14

12:55 pm-11:15 am

2 stops17h 20m

$905

PortoAtlanta

OPO - ATL

OPOATL

Porto

Mon 6/15

7:20 pm-9:40 pm

2 stops31h 20m

Atlanta Hartsfield-Jackson

Tue 4/27

3:30 pm-5:35 pm

2 stops21h 05m

$906

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 26% 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

12h 10m

Direct flights

None
The fastest flight from Porto to Atlanta takes 12h 10m
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 12h 10m.

  • 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
Norcross
Covington
Auburn
Douglasville
Kennesaw
La Grange
College Park
Dahlonega
Newnan
Gainesville
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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