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Cheap flights from Atlanta to Porto from $195

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 3/4. 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.
United Airlines Logo
11:30 am - 9:30 am
ATL
-
OPO
17h 00m
2 stops
United Airlines Logo
12:35 pm - 3:33 pm
OPO
-
ATL
30h 58m
1 stop
$437United Airlines
lun., feb. 23 - mar., mar. 10
United Airlines Logo
7:45 am - 9:30 am
ATL
-
OPO
20h 45m
1 stop
United Airlines Logo
12:35 pm - 10:20 am
OPO
-
ATL
25h 45m
2 stops
$439United Airlines
dom., feb. 22 - mar., mar. 10
British Airways Logo
9:10 am - 4:40 pm
ATL
-
OPO
26h 30m
2 stops
British Airways Logo
8:40 pm - 7:16 pm
OPO
-
ATL
26h 36m
2 stops
$445British Airways
dom., feb. 22 - mar., mar. 10
Multiple Airlines Logo
10:10 pm - 4:45 pm
ATL
-
OPO
13h 35m
1 stop
Multiple Airlines Logo
8:40 pm - 7:18 pm
OPO
-
ATL
27h 38m
2 stops
$448Multiple Airlines
mié., feb. 11 - mié., feb. 18
American Airlines Logo
10:30 pm - 8:00 pm
ATL
-
OPO
16h 30m
2 stops
American Airlines Logo
8:20 am - 10:05 pm
OPO
-
ATL
18h 45m
2 stops
$453American Airlines
mié., abr. 8 - mié., abr. 15
Iberia Logo
11:42 am - 7:40 am
ATL
-
OPO
14h 58m
2 stops
Iberia Logo
9:55 pm - 9:22 pm
OPO
-
ATL
28h 27m
2 stops
$458Iberia
mié., feb. 11 - mié., feb. 18
United Airlines Logo
4:35 pm - 9:30 am
ATL
-
OPO
11h 55m
1 stop
United Airlines Logo
12:35 pm - 7:36 pm
OPO
-
ATL
35h 01m
2 stops
$461United Airlines
mar., mar. 3 - jue., mar. 12
Air France Logo
5:40 pm - 10:30 am
ATL
-
OPO
11h 50m
1 stop
Air France Logo
11:20 am - 8:40 pm
OPO
-
ATL
13h 20m
1 stop
$464Air France
mar., mar. 3 - jue., mar. 12
KLM Logo
5:40 pm - 10:30 am
ATL
-
OPO
11h 50m
1 stop
KLM Logo
11:15 am - 1:35 pm
OPO
-
ATL
31h 20m
1 stop
$466KLM
mar., feb. 3 - lun., feb. 9
Delta Logo
12:00 pm - 10:30 am
ATL
-
OPO
18h 30m
2 stops
Delta Logo
5:00 am - 9:45 pm
OPO
-
ATL
20h 45m
1 stop
$470Delta
lun., mar. 9 - jue., mar. 19

British Airways flights from Atlanta to Porto

Our best British Airways deals on Atlanta to Porto flight tickets
British Airways
Feb 22
ATL9:10 amAtlanta Hartsfield-Jackson
26h 30m
2 stops
OPO4:40 pmPorto
Mar 10
OPO8:40 pmPorto
26h 36m
2 stops
ATL7:16 pmAtlanta Hartsfield-Jackson
$445
British Airways
Apr 14
ATL10:30 pmAtlanta Hartsfield-Jackson
16h 00m
1 stop
OPO7:30 pmPorto
Apr 28
OPO8:40 pmPorto
28h 55m
1 stop
ATL8:35 pmAtlanta Hartsfield-Jackson
$505
British Airways
Feb 9
ATL10:10 pmAtlanta Hartsfield-Jackson
14h 25m
1 stop
OPO5:35 pmPorto
Feb 16
OPO5:30 pmPorto
31h 40m
1 stop
ATL8:10 pmAtlanta Hartsfield-Jackson
$541

Delta flights from Atlanta to Porto

Our best Delta deals on Atlanta to Porto flight tickets
Delta
Mar 9
ATL12:00 pmAtlanta Hartsfield-Jackson
18h 30m
2 stops
OPO10:30 amPorto
Mar 19
OPO5:00 amPorto
20h 45m
1 stop
ATL9:45 pmAtlanta Hartsfield-Jackson
$470
Delta
Feb 3
ATL12:59 pmAtlanta Hartsfield-Jackson
16h 31m
2 stops
OPO10:30 amPorto
Feb 9
OPO5:00 amPorto
20h 45m
1 stop
ATL8:45 pmAtlanta Hartsfield-Jackson
$521
Delta
Feb 19
ATL5:40 pmAtlanta Hartsfield-Jackson
11h 45m
1 stop
OPO10:25 amPorto
Feb 24
OPO11:25 amPorto
16h 21m
2 stops
ATL10:46 pmAtlanta Hartsfield-Jackson
$525

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 enero 14, 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

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

lun. 2/23

11:30 am-9:30 am

2 stops17h 00m

Porto

mar. 3/10

12:35 pm-3:33 pm

1 stop30h 58m

$437

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

dom. 2/22

7:45 am-9:30 am

1 stop20h 45m

Porto

mar. 3/10

12:35 pm-10:20 am

2 stops25h 45m

$439

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

dom. 2/22

9:10 am-4:40 pm

2 stops26h 30m

Porto

mar. 3/10

8:40 pm-7:16 pm

2 stops26h 36m

$445

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

mié. 2/11

10:10 pm-4:45 pm

1 stop13h 35m

Porto

mié. 2/18

8:40 pm-7:18 pm

2 stops27h 38m

$448

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

mié. 4/8

10:30 pm-8:00 pm

2 stops16h 30m

Porto

mié. 4/15

8:20 am-10:05 pm

2 stops18h 45m

$453

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

mié. 2/11

11:42 am-7:40 am

2 stops14h 58m

Porto

mié. 2/18

9:55 pm-9:22 pm

2 stops28h 27m

$458

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

mar. 3/3

4:35 pm-9:30 am

1 stop11h 55m

Porto

jue. 3/12

12:35 pm-7:36 pm

2 stops35h 01m

$461

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

mar. 3/3

5:40 pm-10:30 am

1 stop11h 50m

Porto

jue. 3/12

11:20 am-8:40 pm

1 stop13h 20m

$464

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

mar. 2/3

5:40 pm-10:30 am

1 stop11h 50m

Porto

lun. 2/9

11:15 am-1:35 pm

1 stop31h 20m

$466

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

lun. 3/9

12:00 pm-10:30 am

2 stops18h 30m

Porto

jue. 3/19

5:00 am-9:45 pm

1 stop20h 45m

$470

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 cheapest month to fly to Porto?

The month of February is, on average, the cheapest month to fly to Porto from Atlanta, with most prices found around $608. If you aren’t able to travel during the month of February, then book flights to Porto from Atlanta during March instead. Flights to Porto in March, while not as cheap as those in February, still average around $623.

How far in advance should I book a flight 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 $850 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 $666 on momondo.

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

11h 50m

Direct flights

None
The fastest flight from Atlanta to Porto takes 11h 50m
There are no direct flights from Atlanta to Porto. There are no popular flight routes from Atlanta to Porto.
Search flight deals

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

    Atlanta Hartsfield-Jackson and Porto are 4052.2 mi apart from one another. 11h 50m 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
KLMPriceFrom $555Free CancellationRating
7.7
1,439 reviews
Search KLM flights
LufthansaPriceFrom $568Free CancellationRating
6.8
7,714 reviews
Search Lufthansa flights
United AirlinesPriceFrom $592Free CancellationRating
7.4
9,157 reviews
Search United Airlines flights
DeltaPriceFrom $613Free CancellationRating
7.9
8,042 reviews
Search Delta flights
Turkish AirlinesPriceFrom $644Free CancellationRating
7.3
4,169 reviews
Search Turkish Airlines flights
Air FrancePriceFrom $838Free CancellationRating
7.4
1,522 reviews
Search Air France 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
Matosinhos
Aveiro
Esposende
Lamego
Guimarães
Chaves
Espinho
Pinhao
Arcos de Valdevez
Ponte de Lima
Viseu
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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