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Cheap flights from Atlanta to Porto from $314

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 8/3. 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
7:25 pm - 8:45 am
ATL
-
OPO
32h 20m
1 stop
Scandinavian Airlines Logo
5:55 pm - 5:25 pm
OPO
-
ATL
28h 30m
1 stop
$536Scandinavian Airlines
Thu, Apr 23 - Fri, May 8
Scandinavian Airlines Logo
7:25 pm - 8:45 am
ATL
-
OPO
32h 20m
1 stop
Scandinavian Airlines Logo
5:55 pm - 5:25 pm
OPO
-
ATL
28h 30m
1 stop
$548Scandinavian Airlines
Thu, Apr 23 - Fri, May 8
Scandinavian Airlines Logo
7:25 pm - 8:45 am
ATL
-
OPO
32h 20m
1 stop
Scandinavian Airlines Logo
11:50 am - 5:25 pm
OPO
-
ATL
34h 35m
1 stop
$556Scandinavian Airlines
Thu, Apr 9 - Wed, Apr 22
Scandinavian Airlines Logo
7:25 pm - 8:45 am
ATL
-
OPO
32h 20m
1 stop
Scandinavian Airlines Logo
11:50 am - 5:25 pm
OPO
-
ATL
34h 35m
1 stop
$570Scandinavian Airlines
Thu, Apr 9 - Wed, Apr 22
Scandinavian Airlines Logo
7:25 pm - 8:45 am
ATL
-
OPO
32h 20m
1 stop
Scandinavian Airlines Logo
11:50 am - 5:25 pm
OPO
-
ATL
34h 35m
1 stop
$620Scandinavian Airlines
Thu, Apr 9 - Wed, Apr 15
Scandinavian Airlines Logo
7:25 pm - 8:45 am
ATL
-
OPO
32h 20m
1 stop
Scandinavian Airlines Logo
9:35 am - 5:25 pm
OPO
-
ATL
36h 50m
1 stop
$624Scandinavian Airlines
Thu, Apr 9 - Sat, Apr 25
Turkish Airlines Logo
9:50 pm - 3:45 pm
ATL
-
OPO
36h 55m
1 stop
Turkish Airlines Logo
4:40 pm - 7:45 pm
OPO
-
ATL
32h 05m
1 stop
$639Turkish Airlines
Wed, Apr 8 - Wed, Apr 15
Iberia Logo
10:58 am - 11:45 am
ATL
-
OPO
19h 47m
2 stops
Iberia Logo
8:20 am - 10:23 pm
OPO
-
ATL
19h 03m
2 stops
$640Iberia
Wed, Apr 22 - Wed, Apr 29
Turkish Airlines Logo
9:50 pm - 11:30 pm
ATL
-
OPO
20h 40m
1 stop
Turkish Airlines Logo
10:40 am - 1:00 pm
OPO
-
ATL
31h 20m
1 stop
$641Turkish Airlines
Thu, Apr 16 - Fri, Apr 24
Scandinavian Airlines Logo
7:25 pm - 8:45 am
ATL
-
OPO
32h 20m
1 stop
Scandinavian Airlines Logo
5:55 pm - 5:25 pm
OPO
-
ATL
28h 30m
1 stop
$647Scandinavian Airlines
Thu, Apr 9 - Fri, Apr 17

Delta flights from Atlanta to Porto

Our best Delta deals on Atlanta to Porto flight tickets
Delta
Apr 12
ATL8:05 pmAtlanta Hartsfield-Jackson
20h 55m
1 stop
OPO10:00 pmPorto
Apr 22
OPO5:00 amPorto
14h 00m
1 stop
ATL2:00 pmAtlanta Hartsfield-Jackson
$668
Delta
Apr 12
ATL9:50 pmAtlanta Hartsfield-Jackson
19h 10m
1 stop
OPO10:00 pmPorto
Apr 22
OPO11:45 amPorto
31h 15m
1 stop
ATL2:00 pmAtlanta Hartsfield-Jackson
$669
Delta
Apr 7
ATL4:20 pmAtlanta Hartsfield-Jackson
18h 05m
2 stops
OPO3:25 pmPorto
Apr 14
OPO5:00 amPorto
20h 25m
1 stop
ATL8:25 pmAtlanta Hartsfield-Jackson
$673

British Airways flights from Atlanta to Porto

Our best British Airways deals on Atlanta to Porto flight tickets
British Airways
Apr 7
ATL10:25 pmAtlanta Hartsfield-Jackson
16h 05m
1 stop
OPO7:30 pmPorto
Apr 22
OPO8:20 pmPorto
29h 10m
1 stop
ATL8:30 pmAtlanta Hartsfield-Jackson
$676
British Airways
Apr 7
ATL8:09 pmAtlanta Hartsfield-Jackson
18h 21m
2 stops
OPO7:30 pmPorto
Apr 14
OPO8:55 pmPorto
29h 19m
2 stops
ATL9:14 pmAtlanta Hartsfield-Jackson
$690
British Airways
Apr 6
ATL10:25 pmAtlanta Hartsfield-Jackson
16h 40m
1 stop
OPO8:05 pmPorto
Apr 20
OPO9:25 pmPorto
28h 05m
1 stop
ATL8:30 pmAtlanta Hartsfield-Jackson
$725

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 March 10, 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

Cheapest round-trip

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Thu 4/23

7:25 pm-8:45 am

1 stop32h 20m

Porto

Fri 5/8

5:55 pm-5:25 pm

1 stop28h 30m

$536

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Thu 4/23

7:25 pm-8:45 am

1 stop32h 20m

Porto

Fri 5/8

5:55 pm-5:25 pm

1 stop28h 30m

$548

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Thu 4/9

7:25 pm-8:45 am

1 stop32h 20m

Porto

Wed 4/22

11:50 am-5:25 pm

1 stop34h 35m

$556

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Thu 4/9

7:25 pm-8:45 am

1 stop32h 20m

Porto

Wed 4/22

11:50 am-5:25 pm

1 stop34h 35m

$570

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Thu 4/9

7:25 pm-8:45 am

1 stop32h 20m

Porto

Wed 4/15

11:50 am-5:25 pm

1 stop34h 35m

$620

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Thu 4/9

7:25 pm-8:45 am

1 stop32h 20m

Porto

Sat 4/25

9:35 am-5:25 pm

1 stop36h 50m

$624

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Wed 4/8

9:50 pm-3:45 pm

1 stop36h 55m

Porto

Wed 4/15

4:40 pm-7:45 pm

1 stop32h 05m

$639
Quickest round-trip

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Wed 4/22

10:58 am-11:45 am

2 stops19h 47m

Porto

Wed 4/29

8:20 am-10:23 pm

2 stops19h 03m

$640

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Thu 4/16

9:50 pm-11:30 pm

1 stop20h 40m

Porto

Fri 4/24

10:40 am-1:00 pm

1 stop31h 20m

$641

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Thu 4/9

7:25 pm-8:45 am

1 stop32h 20m

Porto

Fri 4/17

5:55 pm-5:25 pm

1 stop28h 30m

$647

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 $582. 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 $633.

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 $814 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 $761 on momondo.

Can stopping save me money on Atlanta to Porto flights?

You could potentially save up to 4% 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

12h 15m

Direct flights

None
The fastest flight from Atlanta to Porto takes 12h 15m
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. 12h 15m 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
7.8
1,468 reviews
Search KLM flights
Air FrancePriceFrom $564Free CancellationRating
7.4
1,543 reviews
Search Air France flights
LufthansaPriceFrom $569Free CancellationRating
6.8
7,840 reviews
Search Lufthansa flights
DeltaPriceFrom $610Free CancellationRating
7.9
8,276 reviews
Search Delta flights
Turkish AirlinesPriceFrom $644Free CancellationRating
7.3
4,249 reviews
Search Turkish Airlines flights
United AirlinesPriceFrom $656Free CancellationRating
7.4
9,409 reviews
Search United Airlines flights
British AirwaysPriceFrom $707Free CancellationRating
6.7
7,781 reviews
Search British Airways 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
Chaves
Pinhao
Guimarães
Espinho
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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