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Cheap flights from Atlanta to Porto from $238

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 4/17. 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
10:25 am - 6:25 pm
OPO
-
ATL
36h 00m
1 stop
$497Scandinavian Airlines
Mon, Mar 9 - Wed, Mar 25
Lufthansa Logo
5:55 pm - 11:40 am
ATL
-
OPO
13h 45m
1 stop
Lufthansa Logo
4:15 pm - 3:30 pm
OPO
-
ATL
27h 15m
1 stop
$543Lufthansa
Wed, Mar 18 - Wed, Mar 25
Multiple Airlines Logo
6:10 am - 12:50 pm
ATL
-
OPO
26h 40m
2 stops
Multiple Airlines Logo
4:15 pm - 3:30 pm
OPO
-
ATL
27h 15m
1 stop
$548Multiple Airlines
Mon, Mar 9 - Wed, Mar 25
Multiple Airlines Logo
10:45 pm - 10:30 am
ATL
-
OPO
30h 45m
1 stop
Multiple Airlines Logo
5:00 am - 3:40 pm
OPO
-
ATL
14h 40m
1 stop
$553Multiple Airlines
Tue, Mar 3 - Thu, Mar 12
Delta Logo
7:15 pm - 3:25 pm
ATL
-
OPO
15h 10m
2 stops
Delta Logo
5:00 am - 4:55 pm
OPO
-
ATL
16h 55m
1 stop
$555Delta
Wed, Apr 8 - Wed, Apr 15
Delta Logo
12:00 pm - 10:30 am
ATL
-
OPO
17h 30m
2 stops
Delta Logo
5:00 am - 3:40 pm
OPO
-
ATL
14h 40m
1 stop
$556Delta
Tue, Mar 3 - Thu, Mar 12
KLM Logo
5:15 pm - 10:30 am
ATL
-
OPO
12h 15m
1 stop
KLM Logo
5:00 am - 3:40 pm
OPO
-
ATL
14h 40m
1 stop
$558KLM
Tue, Mar 3 - Thu, Mar 12
Delta Logo
7:09 pm - 3:25 pm
ATL
-
OPO
16h 16m
2 stops
Delta Logo
5:00 am - 3:40 pm
OPO
-
ATL
14h 40m
1 stop
$562Delta
Wed, Mar 11 - Wed, Mar 18
Delta Logo
7:15 pm - 3:25 pm
ATL
-
OPO
15h 10m
2 stops
Delta Logo
5:00 am - 6:25 pm
OPO
-
ATL
18h 25m
2 stops
$565Delta
Wed, Apr 8 - Wed, Apr 15
Delta Logo
12:00 pm - 10:30 am
ATL
-
OPO
17h 30m
2 stops
Delta Logo
5:00 am - 6:20 pm
OPO
-
ATL
17h 20m
2 stops
$566Delta
Tue, Mar 3 - Thu, Mar 12

Scandinavian Airlines flights from Atlanta to Porto

Our best Scandinavian Airlines deals on Atlanta to Porto flight tickets
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
$497
Scandinavian Airlines
Apr 16
ATL7:25 pmAtlanta Hartsfield-Jackson
32h 15m
1 stop
OPO8:40 amPorto
Apr 25
OPO9:30 amPorto
36h 55m
1 stop
ATL5:25 pmAtlanta Hartsfield-Jackson
$664

Lufthansa flights from Atlanta to Porto

Our best Lufthansa deals on Atlanta to Porto flight tickets
Lufthansa
Mar 18
ATL5:55 pmAtlanta Hartsfield-Jackson
13h 45m
1 stop
OPO11:40 amPorto
Mar 25
OPO4:15 pmPorto
27h 15m
1 stop
ATL3:30 pmAtlanta Hartsfield-Jackson
$543
Lufthansa
Mar 18
ATL2:39 pmAtlanta Hartsfield-Jackson
17h 01m
2 stops
OPO11:40 amPorto
Mar 25
OPO4:15 pmPorto
27h 15m
1 stop
ATL3:30 pmAtlanta Hartsfield-Jackson
$582
Lufthansa
Mar 11
ATL5:55 pmAtlanta Hartsfield-Jackson
13h 45m
1 stop
OPO11:40 amPorto
Mar 18
OPO4:15 pmPorto
27h 15m
1 stop
ATL3:30 pmAtlanta Hartsfield-Jackson
$585

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 3, 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 3/9

9:00 pm-9:35 am

1 stop32h 35m

Porto

Wed 3/25

10:25 am-6:25 pm

1 stop36h 00m

$497

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Wed 3/18

5:55 pm-11:40 am

1 stop13h 45m

Porto

Wed 3/25

4:15 pm-3:30 pm

1 stop27h 15m

$543

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Mon 3/9

6:10 am-12:50 pm

2 stops26h 40m

Porto

Wed 3/25

4:15 pm-3:30 pm

1 stop27h 15m

$548

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Tue 3/3

10:45 pm-10:30 am

1 stop30h 45m

Porto

Thu 3/12

5:00 am-3:40 pm

1 stop14h 40m

$553

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Wed 4/8

7:15 pm-3:25 pm

2 stops15h 10m

Porto

Wed 4/15

5:00 am-4:55 pm

1 stop16h 55m

$555

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Tue 3/3

12:00 pm-10:30 am

2 stops17h 30m

Porto

Thu 3/12

5:00 am-3:40 pm

1 stop14h 40m

$556

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Tue 3/3

5:15 pm-10:30 am

1 stop12h 15m

Porto

Thu 3/12

5:00 am-3:40 pm

1 stop14h 40m

$558

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Wed 3/11

7:09 pm-3:25 pm

2 stops16h 16m

Porto

Wed 3/18

5:00 am-3:40 pm

1 stop14h 40m

$562

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Wed 4/8

7:15 pm-3:25 pm

2 stops15h 10m

Porto

Wed 4/15

5:00 am-6:25 pm

2 stops18h 25m

$565

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Tue 3/3

12:00 pm-10:30 am

2 stops17h 30m

Porto

Thu 3/12

5:00 am-6:20 pm

2 stops17h 20m

$566

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

11h 20m

Direct flights

None
The fastest flight from Atlanta to Porto takes 11h 20m
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. 11h 20m 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
1,448 reviews
Search KLM flights
Air FrancePriceFrom $564Free CancellationRating
7.4
1,531 reviews
Search Air France flights
LufthansaPriceFrom $568Free CancellationRating
6.8
7,758 reviews
Search Lufthansa flights
DeltaPriceFrom $583Free CancellationRating
7.9
8,136 reviews
Search Delta flights
United AirlinesPriceFrom $592Free CancellationRating
7.4
9,232 reviews
Search United Airlines flights
Turkish AirlinesPriceFrom $644Free CancellationRating
7.3
4,209 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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