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Cheap flights from Atlanta to Porto from $250

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 9/14. 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 (ATL-OPO)

Cheap round-trip flights

Scandinavian Airlines Logo
8:00 pm - 4:55 pmATL-OPO
15h 55m1 stop
Scandinavian Airlines Logo
5:45 pm - 5:25 pmOPO-ATL
28h 40m1 stop
$423Scandinavian Airlines
Find Deal
jue., nov. 13 - vie., nov. 21
Scandinavian Airlines Logo
8:00 pm - 4:45 pmATL-OPO
15h 45m1 stop
Scandinavian Airlines Logo
5:45 pm - 5:25 pmOPO-ATL
28h 40m1 stop
$445Scandinavian Airlines
Find Deal
dom., nov. 16 - vie., nov. 21
United Airlines Logo
4:20 pm - 9:30 amATL-OPO
12h 10m1 stop
United Airlines Logo
6:00 am - 6:31 pmOPO-ATL
17h 31m2 stops
$590United Airlines
Find Deal
dom., nov. 2 - vie., feb. 27
United Airlines Logo
4:20 pm - 9:30 amATL-OPO
12h 10m1 stop
United Airlines Logo
12:35 pm - 8:04 pmOPO-ATL
12h 29m1 stop
$593United Airlines
Find Deal
dom., nov. 2 - jue., feb. 26
Lufthansa Logo
4:55 pm - 11:40 amATL-OPO
13h 45m1 stop
Lufthansa Logo
4:15 pm - 2:30 pmOPO-ATL
27h 15m1 stop
$623Lufthansa
Find Deal
dom., nov. 2 - mar., feb. 24
Turkish Airlines Logo
9:50 pm - 9:55 amATL-OPO
31h 05m1 stop
Turkish Airlines Logo
10:55 am - 7:45 pmOPO-ATL
37h 50m1 stop
$626Turkish Airlines
Find Deal
jue., nov. 13 - mar., nov. 18
Lufthansa Logo
2:42 pm - 11:40 pmATL-OPO
27h 58m2 stops
Lufthansa Logo
12:30 pm - 2:30 pmOPO-ATL
31h 00m1 stop
$628Lufthansa
Find Deal
mié., nov. 5 - lun., feb. 23
Delta Logo
5:10 pm - 10:30 amATL-OPO
12h 20m1 stop
Delta Logo
11:15 am - 2:50 pmOPO-ATL
32h 35m1 stop
$636Delta
Find Deal
mié., dic. 31 - lun., ene. 12
Delta Logo
10:00 am - 10:30 amATL-OPO
19h 30m2 stops
Delta Logo
11:15 am - 8:51 amOPO-ATL
26h 36m2 stops
$651Delta
Find Deal
mié., dic. 31 - vie., ene. 9
Turkish Airlines Logo
9:45 pm - 3:50 pmATL-OPO
37h 05m1 stop
Turkish Airlines Logo
4:50 pm - 12:55 pmOPO-ATL
25h 05m1 stop
$663Turkish Airlines
Find Deal
sáb., sep. 27 - vie., oct. 3

Scandinavian Airlines flights from Atlanta to Porto

Our best Scandinavian Airlines deals on Atlanta to Porto flight tickets
Scandinavian Airlines
Nov 13
ATL8:00 pmAtlanta Hartsfield-Jackson
15h 55m
1 stop
OPO4:55 pmPorto
Nov 21
OPO5:45 pmPorto
28h 40m
1 stop
ATL5:25 pmAtlanta Hartsfield-Jackson
$423
Find similar
Scandinavian Airlines
Nov 16
ATL8:00 pmAtlanta Hartsfield-Jackson
15h 45m
1 stop
OPO4:45 pmPorto
Nov 21
OPO5:45 pmPorto
28h 40m
1 stop
ATL5:25 pmAtlanta Hartsfield-Jackson
$445
Find similar
Scandinavian Airlines
Sep 25
ATL7:55 pmAtlanta Hartsfield-Jackson
16h 10m
1 stop
OPO5:05 pmPorto
Oct 8
OPO11:50 amPorto
34h 30m
1 stop
ATL5:20 pmAtlanta Hartsfield-Jackson
$563
Find similar

United Airlines flights from Atlanta to Porto

Our best United Airlines deals on Atlanta to Porto flight tickets
United Airlines
Nov 2
ATL4:20 pmAtlanta Hartsfield-Jackson
12h 10m
1 stop
OPO9:30 amPorto
Feb 27
OPO6:00 amPorto
17h 31m
2 stops
ATL6:31 pmAtlanta Hartsfield-Jackson
$590
Find similar
United Airlines
Nov 2
ATL4:20 pmAtlanta Hartsfield-Jackson
12h 10m
1 stop
OPO9:30 amPorto
Feb 26
OPO12:35 pmPorto
12h 29m
1 stop
ATL8:04 pmAtlanta Hartsfield-Jackson
$593
Find similar
United Airlines
Nov 11
ATL9:20 amAtlanta Hartsfield-Jackson
19h 10m
2 stops
OPO9:30 amPorto
Nov 19
OPO6:00 amPorto
19h 07m
2 stops
ATL8:07 pmAtlanta Hartsfield-Jackson
$594
Find similar

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 agosto 18, 2025.
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

jue. 11/13

8:00 pm-4:55 pm

1 stop15h 55m

Porto

vie. 11/21

5:45 pm-5:25 pm

1 stop28h 40m

$423

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

dom. 11/16

8:00 pm-4:45 pm

1 stop15h 45m

Porto

vie. 11/21

5:45 pm-5:25 pm

1 stop28h 40m

$445

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

dom. 11/2

4:20 pm-9:30 am

1 stop12h 10m

Porto

vie. 2/27

6:00 am-6:31 pm

2 stops17h 31m

$590

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

dom. 11/2

4:20 pm-9:30 am

1 stop12h 10m

Porto

jue. 2/26

12:35 pm-8:04 pm

1 stop12h 29m

$593

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

dom. 11/2

4:55 pm-11:40 am

1 stop13h 45m

Porto

mar. 2/24

4:15 pm-2:30 pm

1 stop27h 15m

$623

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

jue. 11/13

9:50 pm-9:55 am

1 stop31h 05m

Porto

mar. 11/18

10:55 am-7:45 pm

1 stop37h 50m

$626

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

mié. 11/5

2:42 pm-11:40 pm

2 stops27h 58m

Porto

lun. 2/23

12:30 pm-2:30 pm

1 stop31h 00m

$628

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

mié. 12/31

5:10 pm-10:30 am

1 stop12h 20m

Porto

lun. 1/12

11:15 am-2:50 pm

1 stop32h 35m

$636

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

mié. 12/31

10:00 am-10:30 am

2 stops19h 30m

Porto

vie. 1/9

11:15 am-8:51 am

2 stops26h 36m

$651

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

sáb. 9/27

9:45 pm-3:50 pm

1 stop37h 05m

Porto

vie. 10/3

4:50 pm-12:55 pm

1 stop25h 05m

$663

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 $624. 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 $694.

What is the cheapest day to depart on your flight to Porto?

The cheapest day to depart on your flight to Porto is on a Tuesday when prices can be found for as low as $936. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $1,367. These prices are subject to change though, so be sure to set up a Price Alert for flights to Porto.

What is the cheapest time of day to depart on your flight to Porto?

In the morning is the cheapest time of day to fly from Atlanta to Porto when you can find flight prices for as low as $855. Flying to Porto in the morning is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,205 on average. Flights to Porto from Atlanta in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 $940 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 $685 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

Best Price Found

$250

Fastest flight time

10h 40m

Direct flights

None

Airports in Porto

1 airport
The best one-way flight to Porto from Atlanta in the past 72 hours is $250. The best round-trip flight deal from Atlanta to Porto found on momondo in the last 72 hours is $423.
The fastest flight from Atlanta to Porto takes 10h 40m
There are no direct flights from Atlanta to Porto. Popular non-direct route for this connection is Atlanta Hartsfield-Jackson Airport - Porto Airport.
There is 1 airport near Porto: Porto (OPO)
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. 10h 40m 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 $561Free CancellationRating
7.8
1,385 reviews
Search KLM flights
LufthansaPriceFrom $568Free CancellationRating
6.8
7,330 reviews
Search Lufthansa flights
Turkish AirlinesPriceFrom $626Free CancellationRating
7.3
3,945 reviews
Search Turkish Airlines flights
DeltaPriceFrom $655Free CancellationRating
8.0
7,981 reviews
Search Delta flights
United AirlinesPriceFrom $672Free CancellationRating
7.4
8,925 reviews
Search United Airlines flights
Air FrancePriceFrom $1,065Free CancellationRating
7.4
1,468 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
Aveiro
Coimbra
Braga
Matosinhos
Caminha
Lamego
Guimarães
Esposende
Chaves
Arcos de Valdevez
Espinho
Viseu
Ponte de Lima
Pinhao
Santa Maria da Feira
Curia
Penafiel
Mesao Frio
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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