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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 3/19. 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.
Multiple Airlines Logo
10:30 pm - 7:05 pm
ATL
-
OPO
15h 35m1 stop
Multiple Airlines Logo
8:40 pm - 9:01 pm
OPO
-
ATL
29h 21m2 stops
$509Multiple Airlines
Wed, Apr 8 - Wed, Apr 15
Scandinavian Airlines Logo
7:25 pm - 8:40 am
ATL
-
OPO
32h 15m1 stop
Scandinavian Airlines Logo
11:50 am - 5:25 pm
OPO
-
ATL
34h 35m1 stop
$512Scandinavian Airlines
Thu, Apr 9 - Wed, Apr 15
KLM Logo
4:30 pm - 3:25 pm
ATL
-
OPO
17h 55m1 stop
KLM Logo
7:00 pm - 12:44 pm
OPO
-
ATL
22h 44m1 stop
$518KLM
Wed, Apr 8 - Wed, Apr 15
Delta Logo
8:05 pm - 10:00 pm
ATL
-
OPO
20h 55m1 stop
Delta Logo
5:00 am - 8:25 pm
OPO
-
ATL
20h 25m1 stop
$519Delta
Wed, Apr 8 - Wed, Apr 15
Delta Logo
3:40 pm - 10:05 pm
ATL
-
OPO
25h 25m1 stop
Delta Logo
5:00 am - 8:25 pm
OPO
-
ATL
20h 25m1 stop
$520Delta
Tue, Apr 7 - Wed, Apr 15
Multiple Airlines Logo
1:23 pm - 7:40 am
ATL
-
OPO
13h 17m2 stops
Multiple Airlines Logo
8:20 am - 7:11 pm
OPO
-
ATL
15h 51m2 stops
$521Multiple Airlines
Wed, Apr 8 - Wed, Apr 15
Multiple Airlines Logo
7:15 am - 10:10 am
ATL
-
OPO
21h 55m1 stop
Multiple Airlines Logo
5:15 pm - 9:18 am
OPO
-
ATL
21h 03m1 stop
$522Multiple Airlines
Mon, Apr 6 - Sun, Apr 12
Delta Logo
7:09 pm - 10:05 pm
ATL
-
OPO
21h 56m2 stops
Delta Logo
5:00 am - 8:25 pm
OPO
-
ATL
20h 25m1 stop
$523Delta
Tue, Apr 7 - Wed, Apr 15
KLM Logo
4:30 pm - 3:25 pm
ATL
-
OPO
17h 55m1 stop
KLM Logo
6:15 am - 1:55 pm
OPO
-
ATL
12h 40m1 stop
$526KLM
Mon, Apr 13 - Tue, Apr 28
Delta Logo
4:30 pm - 3:25 pm
ATL
-
OPO
17h 55m1 stop
Delta Logo
5:00 am - 8:05 pm
OPO
-
ATL
20h 05m2 stops
$528Delta
Wed, Apr 8 - Wed, Apr 15

Scandinavian Airlines flights from Atlanta to Porto

Our best Scandinavian Airlines deals on Atlanta to Porto flight tickets
Scandinavian Airlines
Apr 9
ATL7:25 pmAtlanta Hartsfield-Jackson
32h 15m
1 stop
OPO8:40 amPorto
Apr 15
OPO11:50 amPorto
34h 35m
1 stop
ATL5:25 pmAtlanta Hartsfield-Jackson
$512
Find similar
Scandinavian Airlines
Jan 4
ATL8:00 pmAtlanta Hartsfield-Jackson
15h 45m
1 stop
OPO4:45 pmPorto
Jan 18
OPO5:00 amPorto
41h 25m
2 stops
ATL5:25 pmAtlanta Hartsfield-Jackson
$928
Find similar
Scandinavian Airlines
Jan 4
ATL8:00 pmAtlanta Hartsfield-Jackson
15h 45m
1 stop
OPO4:45 pmPorto
Jan 18
OPO5:00 amPorto
41h 25m
2 stops
ATL5:25 pmAtlanta Hartsfield-Jackson
$941
Find similar

KLM flights from Atlanta to Porto

Our best KLM deals on Atlanta to Porto flight tickets
KLM
Apr 8
ATL4:30 pmAtlanta Hartsfield-Jackson
17h 55m
1 stop
OPO3:25 pmPorto
Apr 15
OPO7:00 pmPorto
22h 44m
1 stop
ATL12:44 pmAtlanta Hartsfield-Jackson
$518
Find similar
KLM
Apr 13
ATL4:30 pmAtlanta Hartsfield-Jackson
17h 55m
1 stop
OPO3:25 pmPorto
Apr 28
OPO6:15 amPorto
12h 40m
1 stop
ATL1:55 pmAtlanta Hartsfield-Jackson
$526
Find similar
KLM
Apr 8
ATL8:05 pmAtlanta Hartsfield-Jackson
14h 20m
1 stop
OPO3:25 pmPorto
Apr 15
OPO7:00 pmPorto
22h 44m
1 stop
ATL12:44 pmAtlanta Hartsfield-Jackson
$587
Find similar

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 December 31, 2025.
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

Wed 4/8

10:30 pm-7:05 pm

1 stop15h 35m

Porto

Wed 4/15

8:40 pm-9:01 pm

2 stops29h 21m

$509

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Thu 4/9

7:25 pm-8:40 am

1 stop32h 15m

Porto

Wed 4/15

11:50 am-5:25 pm

1 stop34h 35m

$512

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Wed 4/8

4:30 pm-3:25 pm

1 stop17h 55m

Porto

Wed 4/15

7:00 pm-12:44 pm

1 stop22h 44m

$518

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Wed 4/8

8:05 pm-10:00 pm

1 stop20h 55m

Porto

Wed 4/15

5:00 am-8:25 pm

1 stop20h 25m

$519

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Tue 4/7

3:40 pm-10:05 pm

1 stop25h 25m

Porto

Wed 4/15

5:00 am-8:25 pm

1 stop20h 25m

$520

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Wed 4/8

1:23 pm-7:40 am

2 stops13h 17m

Porto

Wed 4/15

8:20 am-7:11 pm

2 stops15h 51m

$521

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Mon 4/6

7:15 am-10:10 am

1 stop21h 55m

Porto

Sun 4/12

5:15 pm-9:18 am

1 stop21h 03m

$522

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Tue 4/7

7:09 pm-10:05 pm

2 stops21h 56m

Porto

Wed 4/15

5:00 am-8:25 pm

1 stop20h 25m

$523

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Mon 4/13

4:30 pm-3:25 pm

1 stop17h 55m

Porto

Tue 4/28

6:15 am-1:55 pm

1 stop12h 40m

$526

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Wed 4/8

4:30 pm-3:25 pm

1 stop17h 55m

Porto

Wed 4/15

5:00 am-8:05 pm

2 stops20h 05m

$528

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 March is, on average, the cheapest month to fly to Porto from Atlanta, with most prices found around $628. If you aren’t able to travel during the month of March, then book flights to Porto from Atlanta during February instead. Flights to Porto in February, while not as cheap as those in March, still average around $644.

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 $860 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.

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 50m

Direct flights

None
The fastest flight from Atlanta to Porto takes 11h 50m
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 50m 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 $561Free CancellationRating
7.7
1,435 reviews
Search KLM flights
LufthansaPriceFrom $568Free CancellationRating
6.8
7,668 reviews
Search Lufthansa flights
United AirlinesPriceFrom $592Free CancellationRating
7.4
9,122 reviews
Search United Airlines flights
DeltaPriceFrom $613Free CancellationRating
7.9
8,012 reviews
Search Delta flights
Turkish AirlinesPriceFrom $644Free CancellationRating
7.3
4,134 reviews
Search Turkish Airlines flights
Air FrancePriceFrom $1,065Free CancellationRating
7.4
1,514 reviews
Search Air France 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
Matosinhos
Aveiro
Guimarães
Esposende
Lamego
Chaves
Viseu
Espinho
Arcos de Valdevez
Pinhao
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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