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Cheap flights from Porto to Atlanta from $301

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 3/4. 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
10:00 am - 9:02 am
OPO
-
ATL
28h 02m2 stops
Multiple Airlines Logo
9:57 am - 10:05 pm
ATL
-
OPO
31h 08m2 stops
$582Multiple Airlines
Fri, Jan 16 - Thu, Jan 29
Multiple Airlines Logo
6:35 pm - 7:53 am
OPO
-
ATL
18h 18m1 stop
Multiple Airlines Logo
8:58 am - 11:55 am
ATL
-
OPO
21h 57m2 stops
$626Multiple Airlines
Thu, Jan 15 - Wed, Jan 28
Multiple Airlines Logo
6:35 pm - 8:51 am
OPO
-
ATL
19h 16m1 stop
Multiple Airlines Logo
9:37 am - 11:00 am
ATL
-
OPO
20h 23m2 stops
$635Multiple Airlines
Fri, Jan 16 - Thu, Jan 29
Multiple Airlines Logo
9:00 am - 8:11 pm
OPO
-
ATL
16h 11m2 stops
Multiple Airlines Logo
3:26 pm - 11:55 am
ATL
-
OPO
15h 29m2 stops
$650Multiple Airlines
Thu, Jan 15 - Wed, Jan 28
Multiple Airlines Logo
9:00 am - 11:25 pm
OPO
-
ATL
19h 25m3 stops
Multiple Airlines Logo
3:26 pm - 11:55 am
ATL
-
OPO
15h 29m2 stops
$740Multiple Airlines
Thu, Jan 15 - Wed, Jan 28
Multiple Airlines Logo
9:00 am - 7:10 am
OPO
-
ATL
27h 10m3 stops
Multiple Airlines Logo
3:26 pm - 11:50 am
ATL
-
OPO
15h 24m2 stops
$743Multiple Airlines
Fri, Jan 16 - Thu, Jan 29
Multiple Airlines Logo
6:20 am - 7:53 am
OPO
-
ATL
30h 33m3 stops
Multiple Airlines Logo
5:30 am - 6:05 pm
ATL
-
OPO
31h 35m3 stops
$751Multiple Airlines
Sat, Feb 7 - Sat, Feb 21
Lufthansa Logo
12:30 pm - 2:30 pm
OPO
-
ATL
31h 00m1 stop
Lufthansa Logo
4:55 pm - 11:40 am
ATL
-
OPO
13h 45m1 stop
$787Lufthansa
Sat, Feb 7 - Sat, Feb 21
Lufthansa Logo
12:30 pm - 2:30 pm
OPO
-
ATL
31h 00m1 stop
Lufthansa Logo
4:55 pm - 3:25 pm
ATL
-
OPO
17h 30m1 stop
$791Lufthansa
Thu, Jan 15 - Wed, Jan 28
Multiple Airlines Logo
6:00 am - 9:15 pm
OPO
-
ATL
20h 15m2 stops
Multiple Airlines Logo
3:42 pm - 6:35 pm
ATL
-
OPO
21h 53m2 stops
$792Multiple Airlines
Sat, Feb 7 - Sat, Feb 21

United Airlines flights from Porto to Atlanta

Our best United Airlines deals on Porto to Atlanta flight tickets
United Airlines
Jan 23
OPO12:30 pmPorto
31h 00m
1 stop
ATL2:30 pmAtlanta Hartsfield-Jackson
Jan 26
ATL4:55 pmAtlanta Hartsfield-Jackson
17h 00m
1 stop
OPO2:55 pmPorto
$809
Find similar
United Airlines
Jan 16
OPO12:30 pmPorto
31h 00m
1 stop
ATL2:30 pmAtlanta Hartsfield-Jackson
Jan 29
ATL4:55 pmAtlanta Hartsfield-Jackson
13h 45m
1 stop
OPO11:40 amPorto
$810
Find similar
United Airlines
Jan 23
OPO12:30 pmPorto
38h 23m
2 stops
ATL9:53 pmAtlanta Hartsfield-Jackson
Jan 26
ATL4:55 pmAtlanta Hartsfield-Jackson
13h 45m
1 stop
OPO11:40 amPorto
$813
Find similar

KLM flights from Porto to Atlanta

Our best KLM deals on Porto to Atlanta flight tickets
KLM
Dec 25
OPO11:15 amPorto
34h 40m
1 stop
ATL4:55 pmAtlanta Hartsfield-Jackson
Jan 7
ATL3:50 pmAtlanta Hartsfield-Jackson
13h 40m
1 stop
OPO10:30 amPorto
$914
Find similar
KLM
Dec 21
OPO11:15 amPorto
14h 30m
1 stop
ATL8:45 pmAtlanta Hartsfield-Jackson
Dec 29
ATL8:10 pmAtlanta Hartsfield-Jackson
14h 15m
1 stop
OPO3:25 pmPorto
$1,081
Find similar
KLM
Dec 21
OPO5:00 amPorto
20h 45m
1 stop
ATL8:45 pmAtlanta Hartsfield-Jackson
Dec 29
ATL8:10 pmAtlanta Hartsfield-Jackson
17h 30m
1 stop
OPO6:40 pmPorto
$1,184
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 11, 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 1/16

10:00 am-9:02 am

2 stops28h 02m

Atlanta Hartsfield-Jackson

Thu 1/29

9:57 am-10:05 pm

2 stops31h 08m

$582

PortoAtlanta

OPO - ATL

OPOATL

Porto

Thu 1/15

6:35 pm-7:53 am

1 stop18h 18m

Atlanta Hartsfield-Jackson

Wed 1/28

8:58 am-11:55 am

2 stops21h 57m

$626

PortoAtlanta

OPO - ATL

OPOATL

Porto

Fri 1/16

6:35 pm-8:51 am

1 stop19h 16m

Atlanta Hartsfield-Jackson

Thu 1/29

9:37 am-11:00 am

2 stops20h 23m

$635

PortoAtlanta

OPO - ATL

OPOATL

Porto

Thu 1/15

9:00 am-8:11 pm

2 stops16h 11m

Atlanta Hartsfield-Jackson

Wed 1/28

3:26 pm-11:55 am

2 stops15h 29m

$650

PortoAtlanta

OPO - ATL

OPOATL

Porto

Thu 1/15

9:00 am-11:25 pm

3 stops19h 25m

Atlanta Hartsfield-Jackson

Wed 1/28

3:26 pm-11:55 am

2 stops15h 29m

$740

PortoAtlanta

OPO - ATL

OPOATL

Porto

Fri 1/16

9:00 am-7:10 am

3 stops27h 10m

Atlanta Hartsfield-Jackson

Thu 1/29

3:26 pm-11:50 am

2 stops15h 24m

$743

PortoAtlanta

OPO - ATL

OPOATL

Porto

Sat 2/7

6:20 am-7:53 am

3 stops30h 33m

Atlanta Hartsfield-Jackson

Sat 2/21

5:30 am-6:05 pm

3 stops31h 35m

$751

PortoAtlanta

OPO - ATL

OPOATL

Porto

Sat 2/7

12:30 pm-2:30 pm

1 stop31h 00m

Atlanta Hartsfield-Jackson

Sat 2/21

4:55 pm-11:40 am

1 stop13h 45m

$787

PortoAtlanta

OPO - ATL

OPOATL

Porto

Thu 1/15

12:30 pm-2:30 pm

1 stop31h 00m

Atlanta Hartsfield-Jackson

Wed 1/28

4:55 pm-3:25 pm

1 stop17h 30m

$791

PortoAtlanta

OPO - ATL

OPOATL

Porto

Sat 2/7

6:00 am-9:15 pm

2 stops20h 15m

Atlanta Hartsfield-Jackson

Sat 2/21

3:42 pm-6:35 pm

2 stops21h 53m

$792

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 $714. 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

13h 31m

Direct flights

None
The fastest flight from Porto to Atlanta takes 13h 31m
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 31m.

  • 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
1,432 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
Covington
Cartersville
Norcross
Auburn
Gadsden
Conyers
Newnan
La Grange
Lithonia
Kennesaw
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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