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Cheap flights from Atlanta to Porto from $280

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 7/22. 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.
KLM Logo
6:40 pm - 10:30 am
ATL
-
OPO
11h 50m
1 stop
KLM Logo
6:50 pm - 2:00 pm
OPO
-
ATL
24h 10m
1 stop
$550KLM
Mon, Mar 23 - Tue, Mar 31
KLM Logo
9:10 pm - 6:50 pm
ATL
-
OPO
17h 40m
1 stop
KLM Logo
4:20 pm - 12:44 pm
OPO
-
ATL
25h 24m
1 stop
$555KLM
Mon, Mar 23 - Tue, Mar 31
Scandinavian Airlines Logo
7:25 pm - 11:00 am
ATL
-
OPO
34h 35m
1 stop
Scandinavian Airlines Logo
5:55 pm - 5:25 pm
OPO
-
ATL
28h 30m
1 stop
$562Scandinavian Airlines
Sat, Apr 25 - Fri, May 1
Scandinavian Airlines Logo
7:25 pm - 11:00 am
ATL
-
OPO
34h 35m
1 stop
Scandinavian Airlines Logo
5:55 pm - 5:25 pm
OPO
-
ATL
28h 30m
1 stop
$567Scandinavian Airlines
Sat, Apr 25 - Fri, May 8
Delta Logo
3:48 pm - 3:25 pm
ATL
-
OPO
18h 37m
2 stops
Delta Logo
6:15 am - 9:23 pm
OPO
-
ATL
20h 08m
2 stops
$571Delta
Tue, Apr 21 - Tue, Apr 28
Delta Logo
9:00 am - 10:30 am
ATL
-
OPO
21h 30m
2 stops
Delta Logo
4:20 pm - 7:29 pm
OPO
-
ATL
32h 09m
1 stop
$574Delta
Mon, Mar 23 - Mon, Mar 30
Iberia Logo
8:09 pm - 11:45 am
ATL
-
OPO
34h 36m
2 stops
Iberia Logo
8:20 am - 10:23 pm
OPO
-
ATL
19h 03m
2 stops
$577Iberia
Sat, Apr 25 - Tue, May 5
Scandinavian Airlines Logo
7:25 pm - 8:40 am
ATL
-
OPO
32h 15m
1 stop
Scandinavian Airlines Logo
5:55 pm - 5:25 pm
OPO
-
ATL
28h 30m
1 stop
$579Scandinavian Airlines
Thu, Apr 16 - Fri, Apr 24
Scandinavian Airlines Logo
7:25 pm - 8:40 am
ATL
-
OPO
32h 15m
1 stop
Scandinavian Airlines Logo
5:55 pm - 5:25 pm
OPO
-
ATL
28h 30m
1 stop
$581Scandinavian Airlines
Thu, Apr 16 - Fri, Apr 24
Multiple Airlines Logo
6:00 am - 5:05 pm
ATL
-
OPO
30h 05m
3 stops
Multiple Airlines Logo
5:55 pm - 11:27 pm
OPO
-
ATL
34h 32m
3 stops
$582Multiple Airlines
Thu, Apr 16 - Fri, Apr 24

Delta flights from Atlanta to Porto

Our best Delta deals on Atlanta to Porto flight tickets
Delta
Apr 21
ATL3:48 pmAtlanta Hartsfield-Jackson
18h 37m
2 stops
OPO3:25 pmPorto
Apr 28
OPO6:15 amPorto
18h 36m
2 stops
ATL7:51 pmAtlanta Hartsfield-Jackson
$571
Delta
Mar 23
ATL9:00 amAtlanta Hartsfield-Jackson
21h 30m
2 stops
OPO10:30 amPorto
Mar 30
OPO4:20 pmPorto
32h 09m
1 stop
ATL7:29 pmAtlanta Hartsfield-Jackson
$574
Delta
Apr 8
ATL3:35 pmAtlanta Hartsfield-Jackson
18h 50m
1 stop
OPO3:25 pmPorto
Apr 15
OPO5:00 amPorto
20h 25m
1 stop
ATL8:25 pmAtlanta Hartsfield-Jackson
$589

Turkish Airlines flights from Atlanta to Porto

Our best Turkish Airlines deals on Atlanta to Porto flight tickets
Turkish Airlines
Apr 5
ATL3:05 pmAtlanta Hartsfield-Jackson
37h 35m
1 stop
OPO9:40 amPorto
May 4
OPO6:30 amPorto
18h 15m
1 stop
ATL7:45 pmAtlanta Hartsfield-Jackson
$649
Turkish Airlines
Mar 22
ATL10:50 pmAtlanta Hartsfield-Jackson
31h 00m
1 stop
OPO9:50 amPorto
Apr 8
OPO4:40 pmPorto
32h 05m
1 stop
ATL7:45 pmAtlanta Hartsfield-Jackson
$656
Turkish Airlines
Mar 4
ATL9:50 pmAtlanta Hartsfield-Jackson
36h 20m
1 stop
OPO3:10 pmPorto
Mar 8
OPO4:30 pmPorto
32h 15m
1 stop
ATL8:45 pmAtlanta Hartsfield-Jackson
$667

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 February 24, 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

Mon 3/23

6:40 pm-10:30 am

1 stop11h 50m

Porto

Tue 3/31

6:50 pm-2:00 pm

1 stop24h 10m

$550

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Mon 3/23

9:10 pm-6:50 pm

1 stop17h 40m

Porto

Tue 3/31

4:20 pm-12:44 pm

1 stop25h 24m

$555

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Sat 4/25

7:25 pm-11:00 am

1 stop34h 35m

Porto

Fri 5/1

5:55 pm-5:25 pm

1 stop28h 30m

$562

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Sat 4/25

7:25 pm-11:00 am

1 stop34h 35m

Porto

Fri 5/8

5:55 pm-5:25 pm

1 stop28h 30m

$567

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Tue 4/21

3:48 pm-3:25 pm

2 stops18h 37m

Porto

Tue 4/28

6:15 am-9:23 pm

2 stops20h 08m

$571

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Mon 3/23

9:00 am-10:30 am

2 stops21h 30m

Porto

Mon 3/30

4:20 pm-7:29 pm

1 stop32h 09m

$574

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Sat 4/25

8:09 pm-11:45 am

2 stops34h 36m

Porto

Tue 5/5

8:20 am-10:23 pm

2 stops19h 03m

$577

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Thu 4/16

7:25 pm-8:40 am

1 stop32h 15m

Porto

Fri 4/24

5:55 pm-5:25 pm

1 stop28h 30m

$579

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Thu 4/16

7:25 pm-8:40 am

1 stop32h 15m

Porto

Fri 4/24

5:55 pm-5:25 pm

1 stop28h 30m

$581

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Thu 4/16

6:00 am-5:05 pm

3 stops30h 05m

Porto

Fri 4/24

5:55 pm-11:27 pm

3 stops34h 32m

$582

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 March is, on average, the cheapest month to fly to Porto from Atlanta, with most prices found around $595. If you aren’t able to travel during the month of March, then book flights to Porto from Atlanta during February instead. Flights to Porto in February, while not as cheap as those in March, still average around $633.

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 $822 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 $761 on momondo.

Can stopping save me money on Atlanta to Porto flights?

You could potentially save up to 28% 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 45m

Direct flights

None
The fastest flight from Atlanta to Porto takes 13h 45m
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. 13h 45m 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
1,460 reviews
Search KLM flights
Air FrancePriceFrom $564Free CancellationRating
7.4
1,537 reviews
Search Air France flights
LufthansaPriceFrom $568Free CancellationRating
6.8
7,808 reviews
Search Lufthansa flights
United AirlinesPriceFrom $592Free CancellationRating
7.4
9,344 reviews
Search United Airlines flights
DeltaPriceFrom $610Free CancellationRating
7.9
8,238 reviews
Search Delta flights
Turkish AirlinesPriceFrom $644Free CancellationRating
7.3
4,236 reviews
Search Turkish Airlines flights
British AirwaysPriceFrom $707Free CancellationRating
6.7
7,762 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
Matosinhos
Braga
Aveiro
Esposende
Lamego
Guimarães
Pinhao
Chaves
Espinho
Arcos de Valdevez
Viseu
Ponte de Lima
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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