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Cheap flights from Atlanta to Porto from $379

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 8/4. 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 Atlanta to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:35 pm - 7:20 pm
ATL
-
OPO
19h 45m
2 stops
Multiple Airlines Logo
7:35 am - 4:30 pm
OPO
-
ATL
37h 55m
2 stops
$769Multiple Airlines
Sun, Nov 1 - Sat, Nov 7
Scandinavian Airlines Logo
6:35 pm - 10:00 pm
ATL
-
OPO
22h 25m
2 stops
Scandinavian Airlines Logo
12:00 pm - 4:30 pm
OPO
-
ATL
33h 30m
1 stop
$796Scandinavian Airlines
Sun, Nov 1 - Sat, Nov 7
Turkish Airlines Logo
9:50 pm - 9:40 am
ATL
-
OPO
30h 50m
1 stop
Turkish Airlines Logo
4:40 pm - 7:45 pm
OPO
-
ATL
32h 05m
1 stop
$816Turkish Airlines
Wed, Aug 12 - Wed, Aug 26
United Airlines Logo
6:07 am - 9:45 am
ATL
-
OPO
22h 38m
1 stop
United Airlines Logo
11:50 am - 4:19 pm
OPO
-
ATL
33h 29m
1 stop
$817United Airlines
Wed, Oct 14 - Thu, Oct 22
Air Canada Logo
9:28 am - 7:00 am
ATL
-
OPO
16h 32m
2 stops
Air Canada Logo
11:50 am - 4:19 pm
OPO
-
ATL
33h 29m
1 stop
$832Air Canada
Wed, Oct 14 - Thu, Oct 22
Turkish Airlines Logo
9:50 pm - 3:40 pm
ATL
-
OPO
36h 50m
1 stop
Turkish Airlines Logo
10:45 am - 7:45 pm
OPO
-
ATL
38h 00m
1 stop
$833Turkish Airlines
Tue, Sep 1 - Wed, Sep 30
United Airlines Logo
12:55 pm - 7:00 am
ATL
-
OPO
13h 05m
1 stop
United Airlines Logo
12:35 pm - 11:01 pm
OPO
-
ATL
14h 26m
1 stop
$835United Airlines
Wed, Oct 14 - Wed, Oct 28
United Airlines Logo
2:35 pm - 9:45 am
ATL
-
OPO
14h 10m
1 stop
United Airlines Logo
12:35 pm - 11:01 pm
OPO
-
ATL
14h 26m
1 stop
$836United Airlines
Sun, Oct 18 - Wed, Oct 28
United Airlines Logo
12:55 pm - 7:00 am
ATL
-
OPO
13h 05m
1 stop
United Airlines Logo
12:30 pm - 3:30 pm
OPO
-
ATL
31h 00m
1 stop
$837United Airlines
Wed, Oct 14 - Tue, Oct 27
British Airways Logo
10:35 pm - 7:05 pm
ATL
-
OPO
15h 30m
1 stop
British Airways Logo
12:25 pm - 11:59 pm
OPO
-
ATL
16h 34m
2 stops
$838British Airways
Wed, Aug 19 - Wed, Sep 2

Turkish Airlines flights from Atlanta to Porto

Our best Turkish Airlines deals on Atlanta to Porto flight tickets
Turkish Airlines
Aug 12
ATL9:50 pmAtlanta Hartsfield-Jackson
30h 50m
1 stop
OPO9:40 amPorto
Aug 26
OPO4:40 pmPorto
32h 05m
1 stop
ATL7:45 pmAtlanta Hartsfield-Jackson
$816
Turkish Airlines
Sep 1
ATL9:50 pmAtlanta Hartsfield-Jackson
36h 50m
1 stop
OPO3:40 pmPorto
Sep 30
OPO10:45 amPorto
38h 00m
1 stop
ATL7:45 pmAtlanta Hartsfield-Jackson
$833
Turkish Airlines
Aug 20
ATL9:50 pmAtlanta Hartsfield-Jackson
20h 40m
1 stop
OPO11:30 pmPorto
Sep 1
OPO10:40 amPorto
38h 05m
1 stop
ATL7:45 pmAtlanta Hartsfield-Jackson
$845

American Airlines flights from Atlanta to Porto

Our best American Airlines deals on Atlanta to Porto flight tickets
American Airlines
Aug 19
ATL12:07 pmAtlanta Hartsfield-Jackson
18h 38m
2 stops
OPO11:45 amPorto
Sep 2
OPO12:25 pmPorto
16h 34m
2 stops
ATL11:59 pmAtlanta Hartsfield-Jackson
$843
American Airlines
Aug 20
ATL12:07 pmAtlanta Hartsfield-Jackson
18h 38m
2 stops
OPO11:45 amPorto
Sep 1
OPO12:25 pmPorto
16h 30m
2 stops
ATL11:55 pmAtlanta Hartsfield-Jackson
$902

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 May 20, 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

Sun 11/1

6:35 pm-7:20 pm

2 stops19h 45m

Porto

Sat 11/7

7:35 am-4:30 pm

2 stops37h 55m

$769

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Sun 11/1

6:35 pm-10:00 pm

2 stops22h 25m

Porto

Sat 11/7

12:00 pm-4:30 pm

1 stop33h 30m

$796

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Wed 8/12

9:50 pm-9:40 am

1 stop30h 50m

Porto

Wed 8/26

4:40 pm-7:45 pm

1 stop32h 05m

$816

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Wed 10/14

6:07 am-9:45 am

1 stop22h 38m

Porto

Thu 10/22

11:50 am-4:19 pm

1 stop33h 29m

$817

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Wed 10/14

9:28 am-7:00 am

2 stops16h 32m

Porto

Thu 10/22

11:50 am-4:19 pm

1 stop33h 29m

$832

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Tue 9/1

9:50 pm-3:40 pm

1 stop36h 50m

Porto

Wed 9/30

10:45 am-7:45 pm

1 stop38h 00m

$833
Quickest round-trip

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Wed 10/14

12:55 pm-7:00 am

1 stop13h 05m

Porto

Wed 10/28

12:35 pm-11:01 pm

1 stop14h 26m

$835

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Sun 10/18

2:35 pm-9:45 am

1 stop14h 10m

Porto

Wed 10/28

12:35 pm-11:01 pm

1 stop14h 26m

$836

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Wed 10/14

12:55 pm-7:00 am

1 stop13h 05m

Porto

Tue 10/27

12:30 pm-3:30 pm

1 stop31h 00m

$837

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Wed 8/19

10:35 pm-7:05 pm

1 stop15h 30m

Porto

Wed 9/2

12:25 pm-11:59 pm

2 stops16h 34m

$838

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 typical price of a round-trip flight between Atlanta and Porto?

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 $581. If you aren’t able to travel during the month of March, then book flights to Porto from Atlanta during January instead. Flights to Porto in January, while not as cheap as those in March, still average around $655.

How far in advance should I book a flight from Atlanta 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 $809 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 $716 on momondo.

Can stopping save me money on Atlanta to Porto flights?

You could potentially save up to 32% 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 25m

Direct flights

None
The fastest flight from Atlanta to Porto takes 10h 25m
There are no direct flights from Atlanta to Porto. There are no popular flight routes from Atlanta to Porto.
Search flight deals

Frequently asked questions about flying from Atlanta to Porto

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

    Atlanta Hartsfield-Jackson and Porto are 4052.2 mi apart from one another. 10h 25m 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
Air FrancePriceFrom $464Free CancellationRating
7.4
1,588 reviews
Search Air France flights
KLMPriceFrom $533Free CancellationRating
7.8
1,518 reviews
Search KLM flights
LufthansaPriceFrom $579Free CancellationRating
6.8
8,015 reviews
Search Lufthansa flights
United AirlinesPriceFrom $592Free CancellationRating
7.4
9,739 reviews
Search United Airlines flights
DeltaPriceFrom $604Free CancellationRating
7.9
8,452 reviews
Search Delta flights
Turkish AirlinesPriceFrom $644Free CancellationRating
7.4
4,382 reviews
Search Turkish Airlines flights
British AirwaysPriceFrom $707Free CancellationRating
6.7
7,990 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
Lamego
Esposende
Chaves
Pinhao
Espinho
Guimarães
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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