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Cheap flights from Atlanta to Porto from $304

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 10/1. 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
2:45 pm - 11:45 am
ATL
-
OPO
16h 00m
2 stops
Iberia Logo
8:40 pm - 5:48 pm
OPO
-
ATL
26h 08m
2 stops
$779Iberia
Thu, Nov 12 - Mon, Nov 23
American Airlines Logo
9:13 am - 7:40 am
ATL
-
OPO
18h 27m
2 stops
American Airlines Logo
8:20 am - 10:20 pm
OPO
-
ATL
19h 00m
2 stops
$780American Airlines
Wed, Oct 28 - Sun, Nov 1
Iberia Logo
5:17 pm - 11:45 am
ATL
-
OPO
37h 28m
2 stops
Iberia Logo
8:20 am - 10:20 pm
OPO
-
ATL
19h 00m
2 stops
$785Iberia
Mon, Oct 12 - Sat, Nov 14
American Airlines Logo
10:48 am - 7:40 am
ATL
-
OPO
15h 52m
2 stops
American Airlines Logo
12:25 pm - 12:45 am
OPO
-
ATL
17h 20m
2 stops
$786American Airlines
Wed, Oct 14 - Tue, Oct 20
Scandinavian Airlines Logo
7:30 pm - 11:00 am
ATL
-
OPO
34h 30m
1 stop
Scandinavian Airlines Logo
8:20 pm - 5:05 pm
OPO
-
ATL
25h 45m
1 stop
$787Scandinavian Airlines
Mon, Aug 17 - Sun, Aug 30
Scandinavian Airlines Logo
7:30 pm - 11:00 am
ATL
-
OPO
34h 30m
1 stop
Scandinavian Airlines Logo
8:20 pm - 5:05 pm
OPO
-
ATL
25h 45m
1 stop
$794Scandinavian Airlines
Mon, Aug 17 - Sun, Aug 30
Iberia Logo
9:08 am - 11:45 am
ATL
-
OPO
21h 37m
2 stops
Iberia Logo
8:40 pm - 8:08 pm
OPO
-
ATL
28h 28m
2 stops
$796Iberia
Wed, Oct 14 - Mon, Oct 19
Scandinavian Airlines Logo
7:30 pm - 11:00 am
ATL
-
OPO
34h 30m
1 stop
Scandinavian Airlines Logo
8:20 pm - 5:05 pm
OPO
-
ATL
25h 45m
1 stop
$810Scandinavian Airlines
Mon, Aug 17 - Sun, Aug 30
Multiple Airlines Logo
8:05 pm - 3:25 pm
ATL
-
OPO
14h 20m
1 stop
Multiple Airlines Logo
5:00 am - 5:07 pm
OPO
-
ATL
17h 07m
1 stop
$817Multiple Airlines
Wed, Oct 14 - Tue, Oct 20
Scandinavian Airlines Logo
7:30 pm - 11:00 am
ATL
-
OPO
34h 30m
1 stop
Scandinavian Airlines Logo
8:20 pm - 5:05 pm
OPO
-
ATL
25h 45m
1 stop
$819Scandinavian Airlines
Mon, Aug 17 - Sun, Aug 30

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American Airlines flights from Atlanta to Porto

Our best American Airlines deals on Atlanta to Porto flight tickets
American Airlines
Oct 28
ATL9:13 amAtlanta Hartsfield-Jackson
18h 27m
2 stops
OPO7:40 amPorto
Nov 1
OPO8:20 amPorto
19h 00m
2 stops
ATL10:20 pmAtlanta Hartsfield-Jackson
$780
American Airlines
Oct 14
ATL10:48 amAtlanta Hartsfield-Jackson
15h 52m
2 stops
OPO7:40 amPorto
Oct 20
OPO12:25 pmPorto
17h 20m
2 stops
ATL12:45 amAtlanta Hartsfield-Jackson
$786
American Airlines
Oct 14
ATL10:48 amAtlanta Hartsfield-Jackson
15h 52m
2 stops
OPO7:40 amPorto
Oct 19
OPO12:25 pmPorto
17h 20m
2 stops
ATL12:45 amAtlanta Hartsfield-Jackson
$845

Delta flights from Atlanta to Porto

Our best Delta deals on Atlanta to Porto flight tickets
Delta
Oct 14
ATL4:45 pmAtlanta Hartsfield-Jackson
17h 40m
2 stops
OPO3:25 pmPorto
Oct 20
OPO5:00 amPorto
17h 07m
1 stop
ATL5:07 pmAtlanta Hartsfield-Jackson
$821
Delta
Oct 19
ATL5:54 pmAtlanta Hartsfield-Jackson
16h 31m
2 stops
OPO3:25 pmPorto
Oct 30
OPO11:15 amPorto
14h 30m
1 stop
ATL9:45 pmAtlanta Hartsfield-Jackson
$822
Delta
Aug 10
ATL4:30 pmAtlanta Hartsfield-Jackson
17h 55m
1 stop
OPO3:25 pmPorto
Aug 18
OPO11:30 amPorto
31h 25m
1 stop
ATL1:55 pmAtlanta Hartsfield-Jackson
$865

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 8, 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 11/12

2:45 pm-11:45 am

2 stops16h 00m

Porto

Mon 11/23

8:40 pm-5:48 pm

2 stops26h 08m

$779

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Wed 10/28

9:13 am-7:40 am

2 stops18h 27m

Porto

Sun 11/1

8:20 am-10:20 pm

2 stops19h 00m

$780

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Mon 10/12

5:17 pm-11:45 am

2 stops37h 28m

Porto

Sat 11/14

8:20 am-10:20 pm

2 stops19h 00m

$785

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Wed 10/14

10:48 am-7:40 am

2 stops15h 52m

Porto

Tue 10/20

12:25 pm-12:45 am

2 stops17h 20m

$786

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Mon 8/17

7:30 pm-11:00 am

1 stop34h 30m

Porto

Sun 8/30

8:20 pm-5:05 pm

1 stop25h 45m

$787

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Mon 8/17

7:30 pm-11:00 am

1 stop34h 30m

Porto

Sun 8/30

8:20 pm-5:05 pm

1 stop25h 45m

$794

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Wed 10/14

9:08 am-11:45 am

2 stops21h 37m

Porto

Mon 10/19

8:40 pm-8:08 pm

2 stops28h 28m

$796

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Mon 8/17

7:30 pm-11:00 am

1 stop34h 30m

Porto

Sun 8/30

8:20 pm-5:05 pm

1 stop25h 45m

$810
Quickest round-trip

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Wed 10/14

8:05 pm-3:25 pm

1 stop14h 20m

Porto

Tue 10/20

5:00 am-5:07 pm

1 stop17h 07m

$817

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Mon 8/17

7:30 pm-11:00 am

1 stop34h 30m

Porto

Sun 8/30

8:20 pm-5:05 pm

1 stop25h 45m

$819

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 $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 $672.

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 $846 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 $752 on momondo.

Can stopping save me money on Atlanta to Porto flights?

You could potentially save up to 26% 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
7.5
1,623 reviews
Search Air France flights
KLMPriceFrom $533Free CancellationRating
7.8
1,534 reviews
Search KLM flights
United AirlinesPriceFrom $592Free CancellationRating
7.4
9,948 reviews
Search United Airlines flights
DeltaPriceFrom $610Free CancellationRating
7.8
8,452 reviews
Search Delta flights
Turkish AirlinesPriceFrom $644Free CancellationRating
7.4
4,439 reviews
Search Turkish Airlines flights
British AirwaysPriceFrom $707Free CancellationRating
6.7
8,103 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
Arcos de Valdevez
Guimarães
Espinho
Ponte de Lima
Viseu
Curia
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.

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