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Cheap flights from Atlanta to Porto from $283

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 7/14. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Atlanta to Porto

Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
1:20 pm - 11:45 am
ATL
-
OPO
17h 25m
2 stops
American Airlines Logo
8:20 am - 10:56 pm
OPO
-
ATL
19h 36m
2 stops
$730American Airlines
Tue, Nov 3 - Wed, Nov 11
KLM Logo
5:40 pm - 10:30 am
ATL
-
OPO
11h 50m
1 stop
KLM Logo
4:10 pm - 1:35 pm
OPO
-
ATL
26h 25m
1 stop
$769KLM
Tue, Nov 3 - Wed, Nov 11
United Airlines Logo
5:50 pm - 9:30 am
ATL
-
OPO
10h 40m
1 stop
United Airlines Logo
6:00 am - 8:04 pm
OPO
-
ATL
19h 04m
2 stops
$777United Airlines
Tue, Nov 3 - Wed, Nov 11
Iberia Logo
6:38 pm - 4:00 pm
ATL
-
OPO
16h 22m
2 stops
Iberia Logo
8:20 am - 11:57 pm
OPO
-
ATL
20h 37m
2 stops
$780Iberia
Fri, Nov 6 - Tue, Nov 10
American Airlines Logo
10:56 am - 7:40 am
ATL
-
OPO
15h 44m
2 stops
American Airlines Logo
8:20 am - 7:39 pm
OPO
-
ATL
16h 19m
2 stops
$786American Airlines
Wed, Oct 14 - Wed, Oct 21
Turkish Airlines Logo
9:50 pm - 9:45 am
ATL
-
OPO
30h 55m
1 stop
Turkish Airlines Logo
4:25 pm - 7:45 pm
OPO
-
ATL
32h 20m
1 stop
$789Turkish Airlines
Thu, Sep 17 - Mon, Dec 14
Turkish Airlines Logo
9:50 pm - 3:50 pm
ATL
-
OPO
37h 00m
1 stop
Turkish Airlines Logo
4:50 pm - 7:45 pm
OPO
-
ATL
31h 55m
1 stop
$794Turkish Airlines
Sun, Aug 9 - Tue, Aug 25
Scandinavian Airlines Logo
8:00 pm - 11:05 am
ATL
-
OPO
34h 05m
1 stop
Scandinavian Airlines Logo
5:50 pm - 5:45 pm
OPO
-
ATL
28h 55m
1 stop
$797Scandinavian Airlines
Mon, Nov 2 - Thu, Nov 5
Turkish Airlines Logo
9:50 pm - 9:45 am
ATL
-
OPO
30h 55m
1 stop
Turkish Airlines Logo
10:45 am - 7:45 pm
OPO
-
ATL
38h 00m
1 stop
$802Turkish Airlines
Mon, Sep 28 - Wed, Oct 7
Turkish Airlines Logo
9:50 pm - 9:45 am
ATL
-
OPO
30h 55m
1 stop
Turkish Airlines Logo
10:45 am - 7:45 pm
OPO
-
ATL
38h 00m
1 stop
$806Turkish Airlines
Thu, Sep 10 - Wed, Sep 16

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Iberia flights from Atlanta to Porto

Our best Iberia deals on Atlanta to Porto flight tickets
Iberia
Nov 6
ATL6:38 pmAtlanta Hartsfield-Jackson
16h 22m
2 stops
OPO4:00 pmPorto
Nov 10
OPO8:20 amPorto
20h 37m
2 stops
ATL11:57 pmAtlanta Hartsfield-Jackson
$780
Iberia
Oct 11
ATL9:17 amAtlanta Hartsfield-Jackson
21h 28m
2 stops
OPO11:45 amPorto
Nov 18
OPO8:20 amPorto
19h 36m
2 stops
ATL10:56 pmAtlanta Hartsfield-Jackson
$786
Iberia
Nov 12
ATL11:40 amAtlanta Hartsfield-Jackson
15h 00m
2 stops
OPO7:40 amPorto
Nov 15
OPO8:20 amPorto
20h 37m
2 stops
ATL11:57 pmAtlanta Hartsfield-Jackson
$830

Air Canada flights from Atlanta to Porto

Our best Air Canada deals on Atlanta to Porto flight tickets
Air Canada
Oct 13
ATL12:55 pmAtlanta Hartsfield-Jackson
13h 05m
1 stop
OPO7:00 amPorto
Oct 21
OPO11:20 amPorto
36h 46m
2 stops
ATL7:06 pmAtlanta Hartsfield-Jackson
$814
Air Canada
Oct 12
ATL3:00 pmAtlanta Hartsfield-Jackson
35h 00m
2 stops
OPO7:00 amPorto
Oct 20
OPO11:15 amPorto
34h 04m
1 stop
ATL4:19 pmAtlanta Hartsfield-Jackson
$835
Air Canada
Oct 16
ATL11:02 amAtlanta Hartsfield-Jackson
15h 08m
2 stops
OPO7:10 amPorto
Oct 21
OPO11:20 amPorto
36h 46m
2 stops
ATL7:06 pmAtlanta Hartsfield-Jackson
$869

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 16, 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

Tue 11/3

1:20 pm-11:45 am

2 stops17h 25m

Porto

Wed 11/11

8:20 am-10:56 pm

2 stops19h 36m

$730

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Tue 11/3

5:40 pm-10:30 am

1 stop11h 50m

Porto

Wed 11/11

4:10 pm-1:35 pm

1 stop26h 25m

$769
Quickest round-trip

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Tue 11/3

5:50 pm-9:30 am

1 stop10h 40m

Porto

Wed 11/11

6:00 am-8:04 pm

2 stops19h 04m

$777

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Fri 11/6

6:38 pm-4:00 pm

2 stops16h 22m

Porto

Tue 11/10

8:20 am-11:57 pm

2 stops20h 37m

$780

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Wed 10/14

10:56 am-7:40 am

2 stops15h 44m

Porto

Wed 10/21

8:20 am-7:39 pm

2 stops16h 19m

$786

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Thu 9/17

9:50 pm-9:45 am

1 stop30h 55m

Porto

Mon 12/14

4:25 pm-7:45 pm

1 stop32h 20m

$789

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Sun 8/9

9:50 pm-3:50 pm

1 stop37h 00m

Porto

Tue 8/25

4:50 pm-7:45 pm

1 stop31h 55m

$794

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Mon 11/2

8:00 pm-11:05 am

1 stop34h 05m

Porto

Thu 11/5

5:50 pm-5:45 pm

1 stop28h 55m

$797

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Mon 9/28

9:50 pm-9:45 am

1 stop30h 55m

Porto

Wed 10/7

10:45 am-7:45 pm

1 stop38h 00m

$802

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Thu 9/10

9:50 pm-9:45 am

1 stop30h 55m

Porto

Wed 9/16

10:45 am-7:45 pm

1 stop38h 00m

$806

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 $820 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 $792 on momondo.

Can stopping save me money on Atlanta to Porto flights?

You could potentially save up to 23% 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 20m

Direct flights

None
The fastest flight from Atlanta to Porto takes 12h 20m
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 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
Air FrancePriceFrom $464Free CancellationRating
7.4
1,606 reviews
Search Air France flights
KLMPriceFrom $533Free CancellationRating
7.8
1,528 reviews
Search KLM flights
United AirlinesPriceFrom $592Free CancellationRating
7.4
9,842 reviews
Search United Airlines flights
DeltaPriceFrom $604Free CancellationRating
7.9
8,405 reviews
Search Delta flights
Turkish AirlinesPriceFrom $644Free CancellationRating
7.4
4,409 reviews
Search Turkish Airlines flights
British AirwaysPriceFrom $707Free CancellationRating
6.7
8,052 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
Guimarães
Espinho
Arcos de Valdevez
Ponte de Lima
Viseu
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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