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Cheap flights from Porto to Atlanta from $689

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Porto to Atlanta departing on 2/15. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
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
4:40 pm - 9:23 pm
OPO
-
ATL
33h 43m2 stops
Multiple Airlines Logo
10:10 pm - 7:15 pm
ATL
-
OPO
16h 05m1 stop
$689Multiple Airlines
Sun, Feb 15 - Sat, Feb 28
British Airways Logo
8:20 am - 11:54 pm
OPO
-
ATL
20h 34m2 stops
British Airways Logo
10:10 pm - 7:15 pm
ATL
-
OPO
16h 05m1 stop
$696British Airways
Sun, Feb 15 - Sat, Feb 28
Multiple Airlines Logo
6:40 pm - 8:47 am
OPO
-
ATL
19h 07m1 stop
Multiple Airlines Logo
6:00 am - 8:00 am
ATL
-
OPO
21h 00m2 stops
$701Multiple Airlines
Mon, Feb 9 - Mon, Feb 16
Iberia Logo
8:40 pm - 11:56 pm
OPO
-
ATL
32h 16m2 stops
Iberia Logo
4:19 pm - 8:00 pm
ATL
-
OPO
22h 41m2 stops
$706Iberia
Mon, Feb 9 - Mon, Feb 16
British Airways Logo
8:05 pm - 8:10 pm
OPO
-
ATL
29h 05m1 stop
British Airways Logo
10:10 pm - 7:15 pm
ATL
-
OPO
16h 05m1 stop
$708British Airways
Sun, Feb 15 - Sat, Feb 28
Scandinavian Airlines Logo
11:50 am - 5:25 pm
OPO
-
ATL
34h 35m1 stop
Scandinavian Airlines Logo
7:25 pm - 11:00 am
ATL
-
OPO
34h 35m1 stop
$802Scandinavian Airlines
Wed, May 6 - Sat, May 16
United Airlines Logo
6:00 am - 11:40 am
OPO
-
ATL
34h 40m3 stops
United Airlines Logo
2:39 pm - 2:55 pm
ATL
-
OPO
19h 16m2 stops
$803United Airlines
Mon, Feb 9 - Mon, Feb 16
United Airlines Logo
12:30 pm - 2:30 pm
OPO
-
ATL
31h 00m1 stop
United Airlines Logo
4:55 pm - 11:40 am
ATL
-
OPO
13h 45m1 stop
$818United Airlines
Fri, Jan 23 - Mon, Jan 26
Delta Logo
11:45 am - 8:25 pm
OPO
-
ATL
13h 40m1 stop
Delta Logo
5:00 pm - 3:30 pm
ATL
-
OPO
17h 30m2 stops
$856Delta
Wed, May 6 - Sat, May 16
Delta Logo
5:00 am - 2:45 pm
OPO
-
ATL
14h 45m1 stop
Delta Logo
3:50 pm - 10:30 am
ATL
-
OPO
13h 40m1 stop
$857Delta
Mon, Feb 9 - Mon, Feb 16

United Airlines flights from Porto to Atlanta

Our best United Airlines deals on Porto to Atlanta flight tickets
United Airlines
Feb 9
OPO6:00 amPorto
34h 40m
3 stops
ATL11:40 amAtlanta Hartsfield-Jackson
Feb 16
ATL2:39 pmAtlanta Hartsfield-Jackson
19h 16m
2 stops
OPO2:55 pmPorto
$803
Find similar
United Airlines
Jan 23
OPO12:30 pmPorto
31h 00m
1 stop
ATL2:30 pmAtlanta Hartsfield-Jackson
Jan 26
ATL12:38 pmAtlanta Hartsfield-Jackson
18h 02m
2 stops
OPO11:40 amPorto
$817
Find similar
United Airlines
Jan 23
OPO12:30 pmPorto
31h 00m
1 stop
ATL2:30 pmAtlanta Hartsfield-Jackson
Jan 26
ATL12:38 pmAtlanta Hartsfield-Jackson
21h 17m
2 stops
OPO2:55 pmPorto
$818
Find similar

Delta flights from Porto to Atlanta

Our best Delta deals on Porto to Atlanta flight tickets
Delta
May 6
OPO11:45 amPorto
13h 40m
1 stop
ATL8:25 pmAtlanta Hartsfield-Jackson
May 16
ATL5:00 pmAtlanta Hartsfield-Jackson
17h 30m
2 stops
OPO3:30 pmPorto
$856
Find similar
Delta
Feb 9
OPO5:00 amPorto
14h 45m
1 stop
ATL2:45 pmAtlanta Hartsfield-Jackson
Feb 16
ATL3:50 pmAtlanta Hartsfield-Jackson
13h 40m
1 stop
OPO10:30 amPorto
$857
Find similar
Delta
May 6
OPO5:00 amPorto
20h 35m
2 stops
ATL8:35 pmAtlanta Hartsfield-Jackson
May 16
ATL5:00 pmAtlanta Hartsfield-Jackson
17h 30m
2 stops
OPO3:30 pmPorto
$861
Find similar

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 December 28, 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

Sun 2/15

4:40 pm-9:23 pm

2 stops33h 43m

Atlanta Hartsfield-Jackson

Sat 2/28

10:10 pm-7:15 pm

1 stop16h 05m

$689

PortoAtlanta

OPO - ATL

OPOATL

Porto

Sun 2/15

8:20 am-11:54 pm

2 stops20h 34m

Atlanta Hartsfield-Jackson

Sat 2/28

10:10 pm-7:15 pm

1 stop16h 05m

$696

PortoAtlanta

OPO - ATL

OPOATL

Porto

Mon 2/9

6:40 pm-8:47 am

1 stop19h 07m

Atlanta Hartsfield-Jackson

Mon 2/16

6:00 am-8:00 am

2 stops21h 00m

$701

PortoAtlanta

OPO - ATL

OPOATL

Porto

Mon 2/9

8:40 pm-11:56 pm

2 stops32h 16m

Atlanta Hartsfield-Jackson

Mon 2/16

4:19 pm-8:00 pm

2 stops22h 41m

$706

PortoAtlanta

OPO - ATL

OPOATL

Porto

Sun 2/15

8:05 pm-8:10 pm

1 stop29h 05m

Atlanta Hartsfield-Jackson

Sat 2/28

10:10 pm-7:15 pm

1 stop16h 05m

$708

PortoAtlanta

OPO - ATL

OPOATL

Porto

Wed 5/6

11:50 am-5:25 pm

1 stop34h 35m

Atlanta Hartsfield-Jackson

Sat 5/16

7:25 pm-11:00 am

1 stop34h 35m

$802

PortoAtlanta

OPO - ATL

OPOATL

Porto

Mon 2/9

6:00 am-11:40 am

3 stops34h 40m

Atlanta Hartsfield-Jackson

Mon 2/16

2:39 pm-2:55 pm

2 stops19h 16m

$803

PortoAtlanta

OPO - ATL

OPOATL

Porto

Fri 1/23

12:30 pm-2:30 pm

1 stop31h 00m

Atlanta Hartsfield-Jackson

Mon 1/26

4:55 pm-11:40 am

1 stop13h 45m

$818

PortoAtlanta

OPO - ATL

OPOATL

Porto

Wed 5/6

11:45 am-8:25 pm

1 stop13h 40m

Atlanta Hartsfield-Jackson

Sat 5/16

5:00 pm-3:30 pm

2 stops17h 30m

$856

PortoAtlanta

OPO - ATL

OPOATL

Porto

Mon 2/9

5:00 am-2:45 pm

1 stop14h 45m

Atlanta Hartsfield-Jackson

Mon 2/16

3:50 pm-10:30 am

1 stop13h 40m

$857

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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 February is, on average, the cheapest month to fly to Atlanta from Porto, with most prices found around $714. If you aren’t able to travel to Atlanta during the month of February, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $800.

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

30h 45m

Direct flights

None
The fastest flight from Porto to Atlanta takes 30h 45m
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 30h 45m.

  • 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
1,435 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
Stone Mountain
Dahlonega
Cartersville
Covington
Auburn
Norcross
Gadsden
Conyers
Kennesaw
Newnan
La Grange
Lithonia
Gainesville

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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