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Cheap flights from Porto to Atlanta from $338

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 9/16. 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 (OPO-ATL)

Cheap round-trip flights

Scandinavian Airlines Logo
5:55 pm - 5:20 pmOPO-ATL
28h 25m1 stop
Scandinavian Airlines Logo
7:55 pm - 5:05 pmATL-OPO
16h 10m1 stop
$539Scandinavian Airlines
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Fri, Oct 3 - Thu, Oct 16
Logo
12:35 pm - 9:02 amOPO-ATL
24h 27m1 stop
Logo
10:14 pm - 9:30 amATL-OPO
30h 16m1 stop
$721
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Thu, Oct 30 - Mon, Nov 3
Logo
6:05 pm - 9:11 amOPO-ATL
20h 06m1 stop
Logo
10:16 pm - 9:05 amATL-OPO
53h 49m2 stops
$729
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Fri, Oct 3 - Thu, Oct 16
United Airlines Logo
6:00 am - 12:15 amOPO-ATL
23h 15m2 stops
United Airlines Logo
4:35 pm - 9:45 amATL-OPO
12h 10m1 stop
$766United Airlines
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Wed, Oct 1 - Mon, Oct 6
Air Canada Logo
12:10 pm - 5:35 pmOPO-ATL
34h 25m2 stops
Air Canada Logo
8:55 am - 3:45 pmATL-OPO
25h 50m2 stops
$778Air Canada
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Thu, Sep 25 - Mon, Oct 6
United Airlines Logo
12:05 pm - 2:20 pmOPO-ATL
31h 15m1 stop
United Airlines Logo
1:21 pm - 9:45 amATL-OPO
15h 24m2 stops
$780United Airlines
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Tue, Sep 30 - Mon, Oct 6
Lufthansa Logo
4:35 pm - 2:20 pmOPO-ATL
26h 45m1 stop
Lufthansa Logo
4:05 pm - 3:40 pmATL-OPO
18h 35m1 stop
$821Lufthansa
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Tue, Sep 30 - Sun, Oct 5
American Airlines Logo
8:15 am - 9:52 pmOPO-ATL
18h 37m2 stops
American Airlines Logo
10:47 am - 7:35 amATL-OPO
15h 48m2 stops
$822American Airlines
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Fri, Oct 3 - Thu, Oct 16
Lufthansa Logo
4:35 pm - 2:20 pmOPO-ATL
26h 45m1 stop
Lufthansa Logo
4:05 pm - 3:45 pmATL-OPO
18h 40m1 stop
$824Lufthansa
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Mon, Sep 29 - Mon, Oct 6
Air Canada Logo
6:00 am - 9:39 pmOPO-ATL
20h 39m2 stops
Air Canada Logo
8:55 am - 3:45 pmATL-OPO
25h 50m2 stops
$862Air Canada
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Tue, Sep 30 - Mon, Oct 6

United Airlines flights from Porto to Atlanta

Our best United Airlines deals on Porto to Atlanta flight tickets
United Airlines
Oct 1
OPO6:00 amPorto
23h 15m
2 stops
ATL12:15 amAtlanta Hartsfield-Jackson
Oct 6
ATL4:35 pmAtlanta Hartsfield-Jackson
12h 10m
1 stop
OPO9:45 amPorto
$766
Find similar
United Airlines
Sep 30
OPO12:05 pmPorto
31h 15m
1 stop
ATL2:20 pmAtlanta Hartsfield-Jackson
Oct 6
ATL1:21 pmAtlanta Hartsfield-Jackson
15h 24m
2 stops
OPO9:45 amPorto
$780
Find similar
United Airlines
Sep 26
OPO6:00 amPorto
23h 15m
2 stops
ATL12:15 amAtlanta Hartsfield-Jackson
Oct 6
ATL4:35 pmAtlanta Hartsfield-Jackson
12h 10m
1 stop
OPO9:45 amPorto
$783
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Air Canada flights from Porto to Atlanta

Our best Air Canada deals on Porto to Atlanta flight tickets
Air Canada
Sep 25
OPO12:10 pmPorto
34h 25m
2 stops
ATL5:35 pmAtlanta Hartsfield-Jackson
Oct 6
ATL8:55 amAtlanta Hartsfield-Jackson
25h 50m
2 stops
OPO3:45 pmPorto
$778
Find similar
Air Canada
Sep 30
OPO6:00 amPorto
20h 39m
2 stops
ATL9:39 pmAtlanta Hartsfield-Jackson
Oct 6
ATL8:55 amAtlanta Hartsfield-Jackson
25h 50m
2 stops
OPO3:45 pmPorto
$862
Find similar
Air Canada
Sep 30
OPO6:00 amPorto
20h 39m
2 stops
ATL9:39 pmAtlanta Hartsfield-Jackson
Oct 5
ATL6:20 amAtlanta Hartsfield-Jackson
30h 55m
2 stops
OPO6:15 pmPorto
$881
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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 August 14, 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

Fri 10/3

5:55 pm-5:20 pm

1 stop28h 25m

Atlanta Hartsfield-Jackson

Thu 10/16

7:55 pm-5:05 pm

1 stop16h 10m

$539

PortoAtlanta

OPO - ATL

OPOATL

Porto

Thu 10/30

12:35 pm-9:02 am

1 stop24h 27m

Atlanta Hartsfield-Jackson

Mon 11/3

10:14 pm-9:30 am

1 stop30h 16m

$721

PortoAtlanta

OPO - ATL

OPOATL

Porto

Fri 10/3

6:05 pm-9:11 am

1 stop20h 06m

Atlanta Hartsfield-Jackson

Thu 10/16

10:16 pm-9:05 am

2 stops53h 49m

$729

PortoAtlanta

OPO - ATL

OPOATL

Porto

Wed 10/1

6:00 am-12:15 am

2 stops23h 15m

Atlanta Hartsfield-Jackson

Mon 10/6

4:35 pm-9:45 am

1 stop12h 10m

$766

PortoAtlanta

OPO - ATL

OPOATL

Porto

Thu 9/25

12:10 pm-5:35 pm

2 stops34h 25m

Atlanta Hartsfield-Jackson

Mon 10/6

8:55 am-3:45 pm

2 stops25h 50m

$778

PortoAtlanta

OPO - ATL

OPOATL

Porto

Tue 9/30

12:05 pm-2:20 pm

1 stop31h 15m

Atlanta Hartsfield-Jackson

Mon 10/6

1:21 pm-9:45 am

2 stops15h 24m

$780

PortoAtlanta

OPO - ATL

OPOATL

Porto

Tue 9/30

4:35 pm-2:20 pm

1 stop26h 45m

Atlanta Hartsfield-Jackson

Sun 10/5

4:05 pm-3:40 pm

1 stop18h 35m

$821

PortoAtlanta

OPO - ATL

OPOATL

Porto

Fri 10/3

8:15 am-9:52 pm

2 stops18h 37m

Atlanta Hartsfield-Jackson

Thu 10/16

10:47 am-7:35 am

2 stops15h 48m

$822

PortoAtlanta

OPO - ATL

OPOATL

Porto

Mon 9/29

4:35 pm-2:20 pm

1 stop26h 45m

Atlanta Hartsfield-Jackson

Mon 10/6

4:05 pm-3:45 pm

1 stop18h 40m

$824

PortoAtlanta

OPO - ATL

OPOATL

Porto

Tue 9/30

6:00 am-9:39 pm

2 stops20h 39m

Atlanta Hartsfield-Jackson

Mon 10/6

8:55 am-3:45 pm

2 stops25h 50m

$862

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 November 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 November, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $702.

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

Best Price Found

$338

Fastest flight time

14h 29m

Direct flights

None

Airports in Atlanta

1 airport
The best one-way flight to Atlanta from Porto in the past 72 hours is $338. The best round-trip flight deal from Porto to Atlanta found on momondo in the last 72 hours is $539.
The fastest flight from Porto to Atlanta takes 14h 29m
There are no direct flights from Porto to Atlanta. Popular non-direct route for this connection is Porto Airport - Atlanta Hartsfield-Jackson Airport.
There is 1 airport near Atlanta: Atlanta Hartsfield-Jackson (ATL)
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  • 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 14h 29m.

  • 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
Blue Ridge
Warner Robins
Athens
Lawrenceville
Stone Mountain
Norcross
Dahlonega
Auburn
Gadsden
Covington
Cartersville
Conyers
La Grange
Gainesville
Newnan
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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