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Cheap flights from Atlanta to Porto from $279

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Atlanta to Porto departing on 8/5. 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 Atlanta to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
9:00 pm - 9:35 am
ATL
-
OPO
32h 35m
1 stop
Scandinavian Airlines Logo
12:00 pm - 5:25 pm
OPO
-
ATL
34h 25m
1 stop
$495Scandinavian Airlines
Mon, Mar 23 - Mon, Mar 30
Scandinavian Airlines Logo
9:00 pm - 9:35 am
ATL
-
OPO
32h 35m
1 stop
Scandinavian Airlines Logo
12:00 pm - 5:25 pm
OPO
-
ATL
34h 25m
1 stop
$503Scandinavian Airlines
Mon, Mar 16 - Mon, Mar 30
Scandinavian Airlines Logo
9:00 pm - 9:35 am
ATL
-
OPO
32h 35m
1 stop
Scandinavian Airlines Logo
10:25 am - 6:25 pm
OPO
-
ATL
36h 00m
1 stop
$507Scandinavian Airlines
Mon, Mar 9 - Wed, Mar 25
KLM Logo
6:40 pm - 10:30 am
ATL
-
OPO
11h 50m
1 stop
KLM Logo
11:15 am - 9:45 pm
OPO
-
ATL
14h 30m
1 stop
$543KLM
Mon, Mar 9 - Wed, Mar 25
Lufthansa Logo
5:55 pm - 2:55 pm
ATL
-
OPO
17h 00m
1 stop
Lufthansa Logo
4:15 pm - 3:30 pm
OPO
-
ATL
27h 15m
1 stop
$545Lufthansa
Mon, Mar 9 - Mon, Mar 16
Delta Logo
4:45 pm - 10:30 am
ATL
-
OPO
13h 45m
1 stop
Delta Logo
11:15 am - 9:45 pm
OPO
-
ATL
14h 30m
1 stop
$550Delta
Mon, Mar 9 - Wed, Mar 25
KLM Logo
6:40 pm - 10:30 am
ATL
-
OPO
11h 50m
1 stop
KLM Logo
5:00 am - 9:45 pm
OPO
-
ATL
20h 45m
1 stop
$551KLM
Mon, Mar 9 - Wed, Mar 25
KLM Logo
10:40 pm - 6:20 pm
ATL
-
OPO
14h 40m
1 stop
KLM Logo
6:50 pm - 12:44 pm
OPO
-
ATL
22h 54m
1 stop
$555KLM
Wed, Apr 8 - Tue, Apr 14
Multiple Airlines Logo
12:10 pm - 12:05 pm
ATL
-
OPO
19h 55m
2 stops
Multiple Airlines Logo
12:30 pm - 3:30 pm
OPO
-
ATL
31h 00m
1 stop
$560Multiple Airlines
Mon, Mar 16 - Mon, Mar 23
Delta Logo
12:59 pm - 10:30 am
ATL
-
OPO
17h 31m
2 stops
Delta Logo
11:15 am - 9:45 pm
OPO
-
ATL
14h 30m
1 stop
$561Delta
Wed, Mar 11 - Wed, Mar 18

Scandinavian Airlines flights from Atlanta to Porto

Our best Scandinavian Airlines deals on Atlanta to Porto flight tickets
Scandinavian Airlines
Mar 23
ATL9:00 pmAtlanta Hartsfield-Jackson
32h 35m
1 stop
OPO9:35 amPorto
Mar 30
OPO12:00 pmPorto
34h 25m
1 stop
ATL5:25 pmAtlanta Hartsfield-Jackson
$495
Scandinavian Airlines
Mar 16
ATL9:00 pmAtlanta Hartsfield-Jackson
32h 35m
1 stop
OPO9:35 amPorto
Mar 30
OPO12:00 pmPorto
34h 25m
1 stop
ATL5:25 pmAtlanta Hartsfield-Jackson
$503
Scandinavian Airlines
Mar 9
ATL9:00 pmAtlanta Hartsfield-Jackson
32h 35m
1 stop
OPO9:35 amPorto
Mar 25
OPO10:25 amPorto
36h 00m
1 stop
ATL6:25 pmAtlanta Hartsfield-Jackson
$507

Lufthansa flights from Atlanta to Porto

Our best Lufthansa deals on Atlanta to Porto flight tickets
Lufthansa
Mar 9
ATL5:55 pmAtlanta Hartsfield-Jackson
17h 00m
1 stop
OPO2:55 pmPorto
Mar 16
OPO4:15 pmPorto
27h 15m
1 stop
ATL3:30 pmAtlanta Hartsfield-Jackson
$545
Lufthansa
Mar 8
ATL5:55 pmAtlanta Hartsfield-Jackson
13h 45m
1 stop
OPO11:40 amPorto
Mar 15
OPO4:15 pmPorto
27h 15m
1 stop
ATL3:30 pmAtlanta Hartsfield-Jackson
$586
Lufthansa
Mar 9
ATL5:55 pmAtlanta Hartsfield-Jackson
13h 45m
1 stop
OPO11:40 amPorto
Mar 15
OPO4:15 pmPorto
27h 15m
1 stop
ATL3:30 pmAtlanta Hartsfield-Jackson
$604

momondo Fare Finder

 
Customize your flight search to find flights from Atlanta to Porto 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 February 8, 2026.
Use the filters below to find and compare flights from Atlanta to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Mon 3/23

9:00 pm-9:35 am

1 stop32h 35m

Porto

Mon 3/30

12:00 pm-5:25 pm

1 stop34h 25m

$495

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Mon 3/16

9:00 pm-9:35 am

1 stop32h 35m

Porto

Mon 3/30

12:00 pm-5:25 pm

1 stop34h 25m

$503

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Mon 3/9

9:00 pm-9:35 am

1 stop32h 35m

Porto

Wed 3/25

10:25 am-6:25 pm

1 stop36h 00m

$507

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Mon 3/9

6:40 pm-10:30 am

1 stop11h 50m

Porto

Wed 3/25

11:15 am-9:45 pm

1 stop14h 30m

$543

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Mon 3/9

5:55 pm-2:55 pm

1 stop17h 00m

Porto

Mon 3/16

4:15 pm-3:30 pm

1 stop27h 15m

$545

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Mon 3/9

4:45 pm-10:30 am

1 stop13h 45m

Porto

Wed 3/25

11:15 am-9:45 pm

1 stop14h 30m

$550

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Mon 3/9

6:40 pm-10:30 am

1 stop11h 50m

Porto

Wed 3/25

5:00 am-9:45 pm

1 stop20h 45m

$551

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Wed 4/8

10:40 pm-6:20 pm

1 stop14h 40m

Porto

Tue 4/14

6:50 pm-12:44 pm

1 stop22h 54m

$555

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Mon 3/16

12:10 pm-12:05 pm

2 stops19h 55m

Porto

Mon 3/23

12:30 pm-3:30 pm

1 stop31h 00m

$560

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Wed 3/11

12:59 pm-10:30 am

2 stops17h 31m

Porto

Wed 3/18

11:15 am-9:45 pm

1 stop14h 30m

$561

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 Porto from

How to get the cheapest flight ticket from Atlanta to Porto

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 Porto?

The month of February is, on average, the cheapest month to fly to Porto from Atlanta, with most prices found around $579. If you aren’t able to travel during the month of February, then book flights to Porto from Atlanta during March instead. Flights to Porto in March, while not as cheap as those in February, still average around $623.

How far in advance should I book a flight to Porto?

You are more likely to see cheaper flights to Porto from Atlanta when booking weeks ahead of your departure date. In general, you can expect to find flights to Porto for around $841 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Porto from Atlanta for as low as $666 on momondo.

Can stopping save me money on Atlanta to Porto flights?

You could potentially save up to 28% on your flight if you consider stops on a Atlanta to Porto flight.

When to book flights from Atlanta to Porto

Are you open to changing your travel dates? Check out the ideal times to fly from Atlanta to Porto according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Atlanta to Porto (ATL to OPO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Atlanta to Porto

Fastest flight time

10h 40m

Direct flights

None
The fastest flight from Atlanta to Porto takes 10h 40m
There are no direct flights from Atlanta to Porto. There are no popular flight routes from Atlanta to Porto.
Search flight deals

  • How far is Atlanta Hartsfield-Jackson to Porto by plane?

    Atlanta Hartsfield-Jackson and Porto are 4052.2 mi apart from one another. 10h 40m is a normal flight duration for this route.

  • When did momondo last update prices for flights from Atlanta Hartsfield-Jackson Airport to Porto Airport?

    Prices for flights from Atlanta Hartsfield-Jackson Airport to Porto Airport are updated daily.

  • How many operators does momondo search for flights from Atlanta Hartsfield-Jackson Airport to Porto Airport?

  • How old do you have to be to fly from Atlanta Hartsfield-Jackson Airport to Porto Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Atlanta Hartsfield-Jackson Airport to Porto Airport.

  • What documentation or ID do you need to fly to Porto Airport?

    The necessary travel and health documents for your Porto Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Atlanta to Porto?

Best airlines flying from Atlanta to Porto

Compare and see reviews for airlines that fly from Atlanta to Porto with momondo
Airline
Rating
Free Cancellation
Price
KLMPriceFrom $554Free CancellationRating
7.7
1,450 reviews
Search KLM flights
Air FrancePriceFrom $564Free CancellationRating
7.4
1,531 reviews
Search Air France flights
LufthansaPriceFrom $568Free CancellationRating
6.8
7,775 reviews
Search Lufthansa flights
DeltaPriceFrom $583Free CancellationRating
7.9
8,173 reviews
Search Delta flights
United AirlinesPriceFrom $592Free CancellationRating
7.4
9,257 reviews
Search United Airlines flights
Turkish AirlinesPriceFrom $644Free CancellationRating
7.3
4,208 reviews
Search Turkish Airlines flights

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Vila Nova de Gaia
Coimbra
Braga
Aveiro
Matosinhos
Esposende
Lamego
Guimarães
Espinho
Chaves
Pinhao
Arcos de Valdevez
Viseu
Ponte de Lima
Curia
Penafiel
Mesao Frio
Mira
Baiao

Why use momondo?

Why should I use momondo to find a flight deal from Atlanta to Porto?

It is quick and easy to find Atlanta to Porto flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Porto that suits you.

Can I find flights from Atlanta to Porto with flexible booking policies on momondo?

Flights from Atlanta to Porto with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Atlanta to Porto?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Porto from Atlanta.

I’m not ready to book a flight from Atlanta to Porto right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Porto, momondo offers a useful price alert feature which will track prices for flights to Porto from Atlanta and alert you when they change.

An easier way to manage your Porto trip

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