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Cheap flights from Atlanta to Porto from $264

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 10/11. 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.
Turkish Airlines Logo
9:50 pm - 9:45 am
ATL
-
OPO
30h 55m
1 stop
Turkish Airlines Logo
10:40 am - 7:45 pm
OPO
-
ATL
38h 05m
1 stop
$763Turkish Airlines
Mon, Sep 7 - Mon, Sep 28
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
$817Turkish Airlines
Sun, Aug 9 - Tue, Aug 25
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
$822Turkish Airlines
Sun, Aug 9 - Tue, Aug 25
Turkish Airlines Logo
9:50 pm - 9:40 am
ATL
-
OPO
30h 50m
1 stop
Turkish Airlines Logo
4:50 pm - 7:45 pm
OPO
-
ATL
31h 55m
1 stop
$823Turkish Airlines
Sun, Aug 9 - Tue, Aug 25
Turkish Airlines Logo
3:05 pm - 3:40 pm
ATL
-
OPO
19h 35m
1 stop
Turkish Airlines Logo
4:40 pm - 7:45 pm
OPO
-
ATL
32h 05m
1 stop
$832Turkish Airlines
Tue, Sep 1 - Wed, Sep 30
Turkish Airlines Logo
9:50 pm - 11:30 pm
ATL
-
OPO
20h 40m
1 stop
Turkish Airlines Logo
10:40 am - 7:45 pm
OPO
-
ATL
38h 05m
1 stop
$841Turkish Airlines
Tue, Sep 1 - Tue, Oct 6
Turkish Airlines Logo
9:50 pm - 9:40 am
ATL
-
OPO
30h 50m
1 stop
Turkish Airlines Logo
4:50 pm - 7:45 pm
OPO
-
ATL
31h 55m
1 stop
$849Turkish Airlines
Sun, Aug 9 - Tue, Aug 25
Turkish Airlines Logo
9:50 pm - 9:45 am
ATL
-
OPO
30h 55m
1 stop
Turkish Airlines Logo
4:50 pm - 7:45 pm
OPO
-
ATL
31h 55m
1 stop
$859Turkish Airlines
Mon, Sep 14 - Tue, Sep 29
Turkish Airlines Logo
9:50 pm - 3:50 pm
ATL
-
OPO
37h 00m
1 stop
Turkish Airlines Logo
10:40 am - 7:45 pm
OPO
-
ATL
38h 05m
1 stop
$862Turkish Airlines
Sun, Sep 13 - Tue, Sep 29
United Airlines Logo
9:29 am - 9:45 am
ATL
-
OPO
19h 16m
1 stop
United Airlines Logo
11:20 am - 12:27 pm
OPO
-
ATL
30h 07m
2 stops
$864United Airlines
Wed, Oct 7 - Wed, Oct 21

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Delta flights from Atlanta to Porto

Our best Delta deals on Atlanta to Porto flight tickets
Delta
Aug 9
ATL8:05 pmAtlanta Hartsfield-Jackson
14h 25m
1 stop
OPO3:30 pmPorto
Aug 25
OPO5:00 amPorto
13h 55m
1 stop
ATL1:55 pmAtlanta Hartsfield-Jackson
$865
Delta
Oct 6
ATL8:05 pmAtlanta Hartsfield-Jackson
14h 20m
1 stop
OPO3:25 pmPorto
Oct 20
OPO11:35 amPorto
30h 03m
1 stop
ATL12:38 pmAtlanta Hartsfield-Jackson
$866
Delta
Sep 29
ATL5:09 pmAtlanta Hartsfield-Jackson
17h 16m
2 stops
OPO3:25 pmPorto
Oct 29
OPO5:00 amPorto
16h 50m
1 stop
ATL5:50 pmAtlanta Hartsfield-Jackson
$870

American Airlines flights from Atlanta to Porto

Our best American Airlines deals on Atlanta to Porto flight tickets
American Airlines
Aug 9
ATL11:04 amAtlanta Hartsfield-Jackson
15h 36m
2 stops
OPO7:40 amPorto
Aug 25
OPO12:25 pmPorto
16h 30m
2 stops
ATL11:55 pmAtlanta Hartsfield-Jackson
$879
American Airlines
Jul 16
ATL12:13 pmAtlanta Hartsfield-Jackson
18h 32m
2 stops
OPO11:45 amPorto
Jul 23
OPO8:20 amPorto
20h 38m
2 stops
ATL11:58 pmAtlanta Hartsfield-Jackson
$1,199

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 13, 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

Mon 9/7

9:50 pm-9:45 am

1 stop30h 55m

Porto

Mon 9/28

10:40 am-7:45 pm

1 stop38h 05m

$763

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

$817

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

$822

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Sun 8/9

9:50 pm-9:40 am

1 stop30h 50m

Porto

Tue 8/25

4:50 pm-7:45 pm

1 stop31h 55m

$823

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Tue 9/1

3:05 pm-3:40 pm

1 stop19h 35m

Porto

Wed 9/30

4:40 pm-7:45 pm

1 stop32h 05m

$832

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Tue 9/1

9:50 pm-11:30 pm

1 stop20h 40m

Porto

Tue 10/6

10:40 am-7:45 pm

1 stop38h 05m

$841

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Sun 8/9

9:50 pm-9:40 am

1 stop30h 50m

Porto

Tue 8/25

4:50 pm-7:45 pm

1 stop31h 55m

$849

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Mon 9/14

9:50 pm-9:45 am

1 stop30h 55m

Porto

Tue 9/29

4:50 pm-7:45 pm

1 stop31h 55m

$859

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Sun 9/13

9:50 pm-3:50 pm

1 stop37h 00m

Porto

Tue 9/29

10:40 am-7:45 pm

1 stop38h 05m

$862
Quickest round-trip

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Wed 10/7

9:29 am-9:45 am

1 stop19h 16m

Porto

Wed 10/21

11:20 am-12:27 pm

2 stops30h 07m

$864

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
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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 $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 $847 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 $774 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

13h 52m

Direct flights

None
The fastest flight from Atlanta to Porto takes 13h 52m
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 52m 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
1,625 reviews
Search Air France flights
KLMPriceFrom $533Free CancellationRating
7.8
1,538 reviews
Search KLM flights
United AirlinesPriceFrom $592Free CancellationRating
7.4
9,983 reviews
Search United Airlines flights
DeltaPriceFrom $604Free CancellationRating
7.8
8,463 reviews
Search Delta flights
Turkish AirlinesPriceFrom $644Free CancellationRating
7.4
4,442 reviews
Search Turkish Airlines flights
British AirwaysPriceFrom $707Free CancellationRating
6.7
8,106 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
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.

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