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Cheap flights from Atlanta to Porto from $333

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 4/18. 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.
Turkish Airlines Logo
3:05 pm - 3:40 pm
ATL
-
OPO
19h 35m
1 stop
Turkish Airlines Logo
10:40 am - 7:45 pm
OPO
-
ATL
38h 05m
1 stop
$646Turkish Airlines
Tue, Sep 8 - Tue, Sep 22
Turkish Airlines Logo
9:50 pm - 10:00 am
ATL
-
OPO
31h 10m
1 stop
Turkish Airlines Logo
10:45 am - 7:45 pm
OPO
-
ATL
38h 00m
1 stop
$647Turkish Airlines
Tue, Sep 15 - Wed, Sep 30
Turkish Airlines Logo
9:50 pm - 3:40 pm
ATL
-
OPO
36h 50m
1 stop
Turkish Airlines Logo
4:40 pm - 7:45 pm
OPO
-
ATL
32h 05m
1 stop
$648Turkish Airlines
Tue, Sep 1 - Wed, Sep 30
Turkish Airlines Logo
3:05 pm - 9:40 am
ATL
-
OPO
37h 35m
1 stop
Turkish Airlines Logo
10:40 am - 7:45 pm
OPO
-
ATL
38h 05m
1 stop
$667Turkish Airlines
Sat, May 2 - Fri, May 8
Turkish Airlines Logo
3:05 pm - 11:30 pm
ATL
-
OPO
27h 25m
1 stop
Turkish Airlines Logo
6:30 am - 7:45 pm
OPO
-
ATL
18h 15m
1 stop
$683Turkish Airlines
Tue, Sep 22 - Mon, Sep 28
Turkish Airlines Logo
9:50 pm - 3:40 pm
ATL
-
OPO
36h 50m
1 stop
Turkish Airlines Logo
6:30 am - 1:00 pm
OPO
-
ATL
35h 30m
1 stop
$684Turkish Airlines
Thu, Sep 10 - Mon, Sep 14
Turkish Airlines Logo
3:05 pm - 11:30 pm
ATL
-
OPO
27h 25m
1 stop
Turkish Airlines Logo
4:40 pm - 7:45 pm
OPO
-
ATL
32h 05m
1 stop
$702Turkish Airlines
Tue, May 5 - Wed, May 13
Turkish Airlines Logo
3:05 pm - 3:50 pm
ATL
-
OPO
19h 45m
1 stop
Turkish Airlines Logo
10:45 am - 7:45 pm
OPO
-
ATL
38h 00m
1 stop
$703Turkish Airlines
Sun, Aug 23 - Sun, Sep 6
Turkish Airlines Logo
9:50 pm - 11:30 pm
ATL
-
OPO
20h 40m
1 stop
Turkish Airlines Logo
10:45 am - 7:45 pm
OPO
-
ATL
38h 00m
1 stop
$720Turkish Airlines
Tue, Sep 1 - Wed, Sep 23
Turkish Airlines Logo
9:50 pm - 3:40 pm
ATL
-
OPO
36h 50m
1 stop
Turkish Airlines Logo
10:40 am - 1:00 pm
OPO
-
ATL
31h 20m
1 stop
$722Turkish Airlines
Fri, Sep 4 - Mon, Sep 21

Turkish Airlines flights from Atlanta to Porto

Our best Turkish Airlines deals on Atlanta to Porto flight tickets
Turkish Airlines
Sep 8
ATL3:05 pmAtlanta Hartsfield-Jackson
19h 35m
1 stop
OPO3:40 pmPorto
Sep 22
OPO10:40 amPorto
38h 05m
1 stop
ATL7:45 pmAtlanta Hartsfield-Jackson
$646
Turkish Airlines
Sep 15
ATL9:50 pmAtlanta Hartsfield-Jackson
31h 10m
1 stop
OPO10:00 amPorto
Sep 30
OPO10:45 amPorto
38h 00m
1 stop
ATL7:45 pmAtlanta Hartsfield-Jackson
$647
Turkish Airlines
Sep 1
ATL9:50 pmAtlanta Hartsfield-Jackson
36h 50m
1 stop
OPO3:40 pmPorto
Sep 30
OPO4:40 pmPorto
32h 05m
1 stop
ATL7:45 pmAtlanta Hartsfield-Jackson
$648

KLM flights from Atlanta to Porto

Our best KLM deals on Atlanta to Porto flight tickets
KLM
Apr 7
ATL8:05 pmAtlanta Hartsfield-Jackson
14h 20m
1 stop
OPO3:25 pmPorto
Apr 14
OPO11:30 amPorto
13h 55m
1 stop
ATL8:25 pmAtlanta Hartsfield-Jackson
$908
KLM
Apr 9
ATL4:30 pmAtlanta Hartsfield-Jackson
17h 55m
1 stop
OPO3:25 pmPorto
Apr 15
OPO5:00 amPorto
16h 55m
1 stop
ATL4:55 pmAtlanta Hartsfield-Jackson
$958
KLM
Apr 5
ATL8:05 pmAtlanta Hartsfield-Jackson
14h 20m
1 stop
OPO3:25 pmPorto
May 4
OPO7:00 pmPorto
22h 42m
1 stop
ATL12:42 pmAtlanta Hartsfield-Jackson
$962

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 April 3, 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

Tue 9/8

3:05 pm-3:40 pm

1 stop19h 35m

Porto

Tue 9/22

10:40 am-7:45 pm

1 stop38h 05m

$646

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Tue 9/15

9:50 pm-10:00 am

1 stop31h 10m

Porto

Wed 9/30

10:45 am-7:45 pm

1 stop38h 00m

$647

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Tue 9/1

9:50 pm-3:40 pm

1 stop36h 50m

Porto

Wed 9/30

4:40 pm-7:45 pm

1 stop32h 05m

$648

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Sat 5/2

3:05 pm-9:40 am

1 stop37h 35m

Porto

Fri 5/8

10:40 am-7:45 pm

1 stop38h 05m

$667
Quickest round-trip

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Tue 9/22

3:05 pm-11:30 pm

1 stop27h 25m

Porto

Mon 9/28

6:30 am-7:45 pm

1 stop18h 15m

$683

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Thu 9/10

9:50 pm-3:40 pm

1 stop36h 50m

Porto

Mon 9/14

6:30 am-1:00 pm

1 stop35h 30m

$684

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Tue 5/5

3:05 pm-11:30 pm

1 stop27h 25m

Porto

Wed 5/13

4:40 pm-7:45 pm

1 stop32h 05m

$702

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Sun 8/23

3:05 pm-3:50 pm

1 stop19h 45m

Porto

Sun 9/6

10:45 am-7:45 pm

1 stop38h 00m

$703

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Tue 9/1

9:50 pm-11:30 pm

1 stop20h 40m

Porto

Wed 9/23

10:45 am-7:45 pm

1 stop38h 00m

$720

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Fri 9/4

9:50 pm-3:40 pm

1 stop36h 50m

Porto

Mon 9/21

10:40 am-1:00 pm

1 stop31h 20m

$722

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 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 $816 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 51% 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

15h 30m

Direct flights

None
The fastest flight from Atlanta to Porto takes 15h 30m
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. 15h 30m 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 $550Free CancellationRating
7.7
1,485 reviews
Search KLM flights
Air FrancePriceFrom $564Free CancellationRating
7.4
1,562 reviews
Search Air France flights
DeltaPriceFrom $604Free CancellationRating
7.9
8,374 reviews
Search Delta flights
Turkish AirlinesPriceFrom $644Free CancellationRating
7.3
4,294 reviews
Search Turkish Airlines flights
United AirlinesPriceFrom $656Free CancellationRating
7.4
9,539 reviews
Search United Airlines flights
British AirwaysPriceFrom $707Free CancellationRating
6.7
7,848 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
Aveiro
Braga
Matosinhos
Lamego
Esposende
Chaves
Pinhao
Guimarães
Espinho
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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