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Cheap flights from Atlanta to Porto from $393

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 6/20. 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
2:05 pm - 11:45 am
ATL
-
OPO
16h 40m
2 stops
Multiple Airlines Logo
8:40 pm - 6:35 pm
OPO
-
ATL
26h 55m
2 stops
$737Multiple Airlines
Sun, Oct 18 - Wed, Dec 16
Scandinavian Airlines Logo
9:00 pm - 11:05 am
ATL
-
OPO
34h 05m
1 stop
Scandinavian Airlines Logo
5:35 pm - 6:00 pm
OPO
-
ATL
29h 25m
1 stop
$758Scandinavian Airlines
Mon, Oct 26 - Sun, Nov 1
Air Canada Logo
12:55 pm - 7:00 am
ATL
-
OPO
13h 05m
1 stop
Air Canada Logo
6:00 am - 11:46 am
OPO
-
ATL
34h 46m
2 stops
$775Air Canada
Mon, Oct 19 - Tue, Dec 15
Air Canada Logo
12:55 pm - 7:00 am
ATL
-
OPO
13h 05m
1 stop
Air Canada Logo
6:15 am - 9:21 pm
OPO
-
ATL
20h 06m
2 stops
$776Air Canada
Mon, Oct 19 - Fri, Dec 18
United Airlines Logo
9:28 am - 9:45 am
ATL
-
OPO
19h 17m
1 stop
United Airlines Logo
6:00 am - 9:21 pm
OPO
-
ATL
20h 21m
2 stops
$778United Airlines
Sun, Oct 18 - Wed, Dec 16
Air Canada Logo
6:59 pm - 7:00 am
ATL
-
OPO
31h 01m
2 stops
Air Canada Logo
6:00 am - 9:21 pm
OPO
-
ATL
44h 21m
2 stops
$779Air Canada
Mon, Oct 19 - Tue, Dec 15
Air Canada Logo
6:59 pm - 7:00 am
ATL
-
OPO
31h 01m
2 stops
Air Canada Logo
6:15 am - 9:21 pm
OPO
-
ATL
20h 06m
2 stops
$781Air Canada
Mon, Oct 19 - Fri, Dec 18
Air Canada Logo
7:00 am - 7:00 am
ATL
-
OPO
43h 00m
2 stops
Air Canada Logo
6:00 am - 11:46 am
OPO
-
ATL
34h 46m
2 stops
$783Air Canada
Sun, Oct 18 - Tue, Dec 15
United Airlines Logo
12:55 pm - 7:00 am
ATL
-
OPO
13h 05m
1 stop
United Airlines Logo
12:35 pm - 8:04 pm
OPO
-
ATL
12h 29m
1 stop
$785United Airlines
Mon, Oct 19 - Wed, Dec 16
Lufthansa Logo
11:15 am - 9:45 am
ATL
-
OPO
17h 30m
1 stop
Lufthansa Logo
12:35 pm - 8:04 pm
OPO
-
ATL
12h 29m
1 stop
$786Lufthansa
Sun, Oct 18 - Wed, Dec 16

Turkish Airlines flights from Atlanta to Porto

Our best Turkish Airlines deals on Atlanta to Porto flight tickets
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
Sep 7
ATL9:50 pmAtlanta Hartsfield-Jackson
30h 55m
1 stop
OPO9:45 amPorto
Sep 22
OPO10:40 amPorto
38h 05m
1 stop
ATL7:45 pmAtlanta Hartsfield-Jackson
$834
Turkish Airlines
Aug 19
ATL9:50 pmAtlanta Hartsfield-Jackson
30h 50m
1 stop
OPO9:40 amPorto
Sep 1
OPO10:40 amPorto
38h 05m
1 stop
ATL7:45 pmAtlanta Hartsfield-Jackson
$846

Lufthansa flights from Atlanta to Porto

Our best Lufthansa deals on Atlanta to Porto flight tickets
Lufthansa
Oct 18
ATL11:15 amAtlanta Hartsfield-Jackson
17h 30m
1 stop
OPO9:45 amPorto
Dec 16
OPO12:35 pmPorto
12h 29m
1 stop
ATL8:04 pmAtlanta Hartsfield-Jackson
$786
Lufthansa
Oct 19
ATL6:59 pmAtlanta Hartsfield-Jackson
23h 26m
2 stops
OPO11:25 pmPorto
Dec 14
OPO12:35 pmPorto
33h 48m
2 stops
ATL5:23 pmAtlanta Hartsfield-Jackson
$811
Lufthansa
Oct 17
ATL6:59 pmAtlanta Hartsfield-Jackson
34h 21m
2 stops
OPO10:20 amPorto
Dec 17
OPO6:00 amPorto
22h 30m
2 stops
ATL11:30 pmAtlanta Hartsfield-Jackson
$841

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 June 1, 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 10/18

2:05 pm-11:45 am

2 stops16h 40m

Porto

Wed 12/16

8:40 pm-6:35 pm

2 stops26h 55m

$737

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Mon 10/26

9:00 pm-11:05 am

1 stop34h 05m

Porto

Sun 11/1

5:35 pm-6:00 pm

1 stop29h 25m

$758

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Mon 10/19

12:55 pm-7:00 am

1 stop13h 05m

Porto

Tue 12/15

6:00 am-11:46 am

2 stops34h 46m

$775

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Mon 10/19

12:55 pm-7:00 am

1 stop13h 05m

Porto

Fri 12/18

6:15 am-9:21 pm

2 stops20h 06m

$776

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Sun 10/18

9:28 am-9:45 am

1 stop19h 17m

Porto

Wed 12/16

6:00 am-9:21 pm

2 stops20h 21m

$778

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Mon 10/19

6:59 pm-7:00 am

2 stops31h 01m

Porto

Tue 12/15

6:00 am-9:21 pm

2 stops44h 21m

$779

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Mon 10/19

6:59 pm-7:00 am

2 stops31h 01m

Porto

Fri 12/18

6:15 am-9:21 pm

2 stops20h 06m

$781

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Sun 10/18

7:00 am-7:00 am

2 stops43h 00m

Porto

Tue 12/15

6:00 am-11:46 am

2 stops34h 46m

$783
Quickest round-trip

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Mon 10/19

12:55 pm-7:00 am

1 stop13h 05m

Porto

Wed 12/16

12:35 pm-8:04 pm

1 stop12h 29m

$785

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Sun 10/18

11:15 am-9:45 am

1 stop17h 30m

Porto

Wed 12/16

12:35 pm-8:04 pm

1 stop12h 29m

$786

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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 $818 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

12h 30m

Direct flights

None
The fastest flight from Atlanta to Porto takes 12h 30m
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. 12h 30m 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
1,596 reviews
Search Air France flights
KLMPriceFrom $533Free CancellationRating
7.8
1,524 reviews
Search KLM flights
LufthansaPriceFrom $579Free CancellationRating
6.8
8,033 reviews
Search Lufthansa flights
United AirlinesPriceFrom $592Free CancellationRating
7.4
9,774 reviews
Search United Airlines flights
DeltaPriceFrom $604Free CancellationRating
7.9
8,400 reviews
Search Delta flights
Turkish AirlinesPriceFrom $644Free CancellationRating
7.4
4,408 reviews
Search Turkish Airlines flights
British AirwaysPriceFrom $707Free CancellationRating
6.7
8,015 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
Aveiro
Braga
Matosinhos
Lamego
Chaves
Esposende
Pinhao
Guimarães
Espinho
Arcos de Valdevez
Viseu
Ponte de Lima
Curia
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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