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Cheap flights from Atlanta to Porto from $278

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 10/16. 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.
Iberia Logo
8:54 am - 7:40 am
ATL
-
OPO
17h 46m
2 stops
Iberia Logo
8:40 pm - 8:15 pm
OPO
-
ATL
52h 35m
2 stops
$731Iberia
Wed, Dec 2 - Mon, Jan 11
American Airlines Logo
12:48 pm - 7:40 am
ATL
-
OPO
13h 52m
2 stops
American Airlines Logo
8:20 am - 9:17 pm
OPO
-
ATL
17h 57m
2 stops
$734American Airlines
Sun, Jan 17 - Wed, Mar 10
Turkish Airlines Logo
3:05 pm - 11:30 pm
ATL
-
OPO
27h 25m
1 stop
Turkish Airlines Logo
10:40 am - 1:00 pm
OPO
-
ATL
31h 20m
1 stop
$738Turkish Airlines
Sat, Sep 12 - Mon, Sep 21
Turkish Airlines Logo
9:50 pm - 9:45 am
ATL
-
OPO
30h 55m
1 stop
Turkish Airlines Logo
10:45 am - 8:45 pm
OPO
-
ATL
39h 00m
1 stop
$738Turkish Airlines
Mon, Oct 19 - Sat, Oct 24
Delta Logo
3:45 pm - 10:35 am
ATL
-
OPO
13h 50m
1 stop
Delta Logo
5:00 am - 2:57 pm
OPO
-
ATL
14h 57m
1 stop
$772Delta
Sun, Jan 17 - Wed, Mar 10
Delta Logo
2:15 pm - 10:35 am
ATL
-
OPO
15h 20m
2 stops
Delta Logo
5:00 am - 8:40 pm
OPO
-
ATL
20h 40m
1 stop
$777Delta
Sun, Jan 17 - Wed, Mar 10
British Airways Logo
10:15 pm - 5:45 pm
ATL
-
OPO
14h 30m
1 stop
British Airways Logo
8:40 pm - 6:35 pm
OPO
-
ATL
26h 55m
2 stops
$786British Airways
Tue, Dec 15 - Mon, Dec 21
British Airways Logo
10:30 pm - 7:05 pm
ATL
-
OPO
15h 35m
1 stop
British Airways Logo
8:20 am - 12:45 am
OPO
-
ATL
21h 25m
2 stops
$814British Airways
Wed, Oct 14 - Tue, Oct 20
United Airlines Logo
12:55 pm - 7:00 am
ATL
-
OPO
13h 05m
1 stop
United Airlines Logo
11:15 am - 7:56 pm
OPO
-
ATL
37h 41m
2 stops
$819United Airlines
Wed, Oct 14 - Tue, Oct 20
United Airlines Logo
2:40 pm - 9:45 am
ATL
-
OPO
14h 05m
2 stops
United Airlines Logo
12:35 pm - 3:40 pm
OPO
-
ATL
31h 05m
1 stop
$841United Airlines
Mon, Oct 19 - Mon, Oct 26

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British Airways flights from Atlanta to Porto

Our best British Airways deals on Atlanta to Porto flight tickets
British Airways
Dec 15
ATL10:15 pmAtlanta Hartsfield-Jackson
14h 30m
1 stop
OPO5:45 pmPorto
Dec 21
OPO8:40 pmPorto
26h 55m
2 stops
ATL6:35 pmAtlanta Hartsfield-Jackson
$786
British Airways
Oct 14
ATL10:30 pmAtlanta Hartsfield-Jackson
15h 35m
1 stop
OPO7:05 pmPorto
Oct 20
OPO8:20 amPorto
21h 25m
2 stops
ATL12:45 amAtlanta Hartsfield-Jackson
$814
British Airways
Dec 15
ATL10:15 pmAtlanta Hartsfield-Jackson
14h 30m
1 stop
OPO5:45 pmPorto
Dec 21
OPO5:30 pmPorto
31h 45m
1 stop
ATL8:15 pmAtlanta Hartsfield-Jackson
$847

Turkish Airlines flights from Atlanta to Porto

Our best Turkish Airlines deals on Atlanta to Porto flight tickets
Turkish Airlines
Oct 14
ATL9:50 pmAtlanta Hartsfield-Jackson
36h 55m
1 stop
OPO3:45 pmPorto
Oct 19
OPO10:40 amPorto
31h 20m
1 stop
ATL1:00 pmAtlanta Hartsfield-Jackson
$738
Turkish Airlines
Oct 19
ATL9:50 pmAtlanta Hartsfield-Jackson
30h 55m
1 stop
OPO9:45 amPorto
Oct 26
OPO4:25 pmPorto
32h 20m
1 stop
ATL8:45 pmAtlanta Hartsfield-Jackson
$748
Turkish Airlines
Sep 22
ATL9:50 pmAtlanta Hartsfield-Jackson
36h 50m
1 stop
OPO3:40 pmPorto
Sep 29
OPO10:40 amPorto
38h 05m
1 stop
ATL7:45 pmAtlanta Hartsfield-Jackson
$763

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 July 29, 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

Wed 12/2

8:54 am-7:40 am

2 stops17h 46m

Porto

Mon 1/11

8:40 pm-8:15 pm

2 stops52h 35m

$731

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Sun 1/17

12:48 pm-7:40 am

2 stops13h 52m

Porto

Wed 3/10

8:20 am-9:17 pm

2 stops17h 57m

$734

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Sat 9/12

3:05 pm-11:30 pm

1 stop27h 25m

Porto

Mon 9/21

10:40 am-1:00 pm

1 stop31h 20m

$738

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Mon 10/19

9:50 pm-9:45 am

1 stop30h 55m

Porto

Sat 10/24

10:45 am-8:45 pm

1 stop39h 00m

$738
Quickest round-trip

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Sun 1/17

3:45 pm-10:35 am

1 stop13h 50m

Porto

Wed 3/10

5:00 am-2:57 pm

1 stop14h 57m

$772

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Sun 1/17

2:15 pm-10:35 am

2 stops15h 20m

Porto

Wed 3/10

5:00 am-8:40 pm

1 stop20h 40m

$777

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Tue 12/15

10:15 pm-5:45 pm

1 stop14h 30m

Porto

Mon 12/21

8:40 pm-6:35 pm

2 stops26h 55m

$786

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Wed 10/14

10:30 pm-7:05 pm

1 stop15h 35m

Porto

Tue 10/20

8:20 am-12:45 am

2 stops21h 25m

$814

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Wed 10/14

12:55 pm-7:00 am

1 stop13h 05m

Porto

Tue 10/20

11:15 am-7:56 pm

2 stops37h 41m

$819

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Mon 10/19

2:40 pm-9:45 am

2 stops14h 05m

Porto

Mon 10/26

12:35 pm-3:40 pm

1 stop31h 05m

$841

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?

Prices are currently low for flights on this route.

Typical prices usually range from $917 to $1,037.
The lowest price recently found on this route was $731.

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 January instead. Flights to Porto in January, while not as cheap as those in March, still average around $628.

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 $852 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 $764 on momondo.

Can stopping save me money on Atlanta to Porto flights?

You could potentially save up to 34% 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

13h 36m

Direct flights

None
The fastest flight from Atlanta to Porto takes 13h 36m
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. 13h 36m 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
7.5
1,629 reviews
Search Air France flights
KLMPriceFrom $533Free CancellationRating
7.8
1,550 reviews
Search KLM flights
United AirlinesPriceFrom $592Free CancellationRating
7.4
10,052 reviews
Search United Airlines flights
DeltaPriceFrom $604Free CancellationRating
7.8
8,487 reviews
Search Delta flights
Turkish AirlinesPriceFrom $662Free CancellationRating
7.4
4,455 reviews
Search Turkish Airlines flights
British AirwaysPriceFrom $707Free CancellationRating
6.7
8,131 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
Pinhao
Esposende
Lamego
Chaves
Arcos de Valdevez
Guimarães
Viseu
Espinho
Ponte de Lima
Mesao Frio
Penafiel
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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