HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Atlanta

$367+ Cheap flights from Porto (OPO) to Atlanta (ATL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/4. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — ATL
mar. 15 — mar. 221
dom. 3/15
dom. 3/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Porto to Atlanta with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Porto to Atlanta

Cheapest flights from Porto to Atlanta
Explore the most affordable flight options available from Porto to Atlanta. Find the lowest fares from popular airlines and budget airlines, with prices last updated on febrero 13, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 4/35:55 pm
OPO
-
ATL
1 stop28h 30m
Scandinavian Airlines
sáb. 4/187:25 pm
ATL
-
OPO
1 stop17h 15m
Scandinavian Airlines
Deal found 2/11$646
This Kiwi.com deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 3/248:00 pm
OPO
-
ATL
2 stops33h 11m
Multiple Airlines
sáb. 3/287:20 pm
ATL
-
OPO
1 stop13h 10m
Multiple Airlines
Deal found 2/11$816
This United Airlines deal was found by Cheapflights users on 2/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 2/2712:30 pm
OPO
-
ATL
1 stop31h 00m
United Airlines
mar. 3/32:39 pm
ATL
-
OPO
2 stops13h 51m
United Airlines
Deal found 2/9$820
This Gotogate deal was found by Cheapflights users on 2/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 4/34:35 pm
OPO
-
ATL
1 stop26h 10m
Lufthansa
sáb. 4/186:50 pm
ATL
-
OPO
2 stops22h 55m
Lufthansa
Deal found 2/11$826
This Scandinavian Airlines deal was found by Cheapflights users on 2/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/611:50 am
OPO
-
ATL
1 stop34h 35m
Scandinavian Airlines
sáb. 5/167:25 pm
ATL
-
OPO
1 stop34h 35m
Scandinavian Airlines
Deal found 2/10$827
This United Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/1512:05 pm
OPO
-
ATL
1 stop30h 40m
United Airlines
mar. 5/269:25 am
ATL
-
OPO
2 stops19h 20m
United Airlines
Deal found 2/13$843
This American Airlines deal was found by Cheapflights users on 2/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/68:20 am
OPO
-
ATL
2 stops16h 07m
American Airlines
sáb. 5/161:24 pm
ATL
-
OPO
2 stops13h 16m
American Airlines
Deal found 2/13$846

Find flight deals from Porto to Atlanta

Discover tips and strategies to find the most affordable flight options for your journey from Porto (OPO) to Atlanta (ATL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated febrero 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$646
(Kiwi.com)

One-way from

$367
(Kiwi.com)

Popular in

August

Cheapest in

September

Average price

$1,137
Provider with most accurate pricing for Porto-Atlanta Hartsfield-Jackson flight deals.
Search Deals
Provider most trusted by Cheapflights users for Porto-Atlanta Hartsfield-Jackson flights.
Search Deals
From Porto to Atlanta Hartsfield-Jackson
Search Deals
One-way flight from Porto to Atlanta Hartsfield-Jackson
Search Deals
Highest demand for flights based on searches. 7% potential increase in price ($74 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Porto to Atlanta 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, Cheapflights users made 2,558,603 searches. Data last updated febrero 13, 2026.
Use the filters below to find and compare flights from Porto to Atlanta that are best for you.

Fly from

Porto

Fly to

Atlanta

Route

Depart

Return

Price

PortoAtlanta

OPO - ATL

OPOATL

Porto

mar. 3/24

8:00 pm-1:11 am

2 stops33h 11m

Atlanta Hartsfield-Jackson

sáb. 3/28

7:20 pm-12:30 pm

1 stop13h 10m

$816

PortoAtlanta

OPO - ATL

OPOATL

Porto

vie. 2/27

12:30 pm-2:30 pm

1 stop31h 00m

Atlanta Hartsfield-Jackson

mar. 3/3

4:35 pm-9:30 am

1 stop11h 55m

$820

PortoAtlanta

OPO - ATL

OPOATL

Porto

vie. 4/3

4:35 pm-1:45 pm

1 stop26h 10m

Atlanta Hartsfield-Jackson

sáb. 4/18

6:50 pm-10:45 pm

2 stops22h 55m

$826

PortoAtlanta

OPO - ATL

OPOATL

Porto

mié. 5/6

11:50 am-5:25 pm

1 stop34h 35m

Atlanta Hartsfield-Jackson

sáb. 5/16

7:25 pm-11:00 am

1 stop34h 35m

$827

PortoAtlanta

OPO - ATL

OPOATL

Porto

mié. 3/4

6:05 am-9:03 am

2 stops31h 58m

$367

PortoAtlanta

OPO - ATL

OPOATL

Porto

sáb. 2/21

11:35 am-9:07 am

2 stops26h 32m

$487

PortoAtlanta

OPO - ATL

OPOATL

Porto

lun. 5/4

4:40 pm-7:27 pm

2 stops31h 47m

$519

PortoAtlanta

OPO - ATL

OPOATL

Porto

vie. 8/7

12:35 pm-8:46 am

2 stops25h 11m

$558

PortoAtlanta

OPO - ATL

OPOATL

Porto

lun. 8/3

10:35 pm-8:14 am

3 stops38h 39m

$587

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/12

  • Most accurate provider: When it comes to deals on Porto-Atlanta flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Porto-Atlanta flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Porto-Atlanta flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Porto-Atlanta flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Porto-Atlanta flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Porto to Atlanta

Have a flexible travel schedule? Discover the best time to fly to Atlanta from Porto with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Porto to Atlanta. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Porto to Atlanta?

    Departing from Porto to Atlanta will take you 31h. Porto and Atlanta are separated by a distance of 4053 mi.

  • Can I find deals for flights from Porto to Atlanta that include hotel bookings?

    Yes. In addition to deals on Porto to Atlanta flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Porto to Atlanta?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Porto to Atlanta.

  • Can I find deals for business class flights from Porto to Atlanta?

    Yes. Cheapflights offers flight deals from Porto to Atlanta by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Atlanta?

Book flights to Atlanta if you plan to visit one of these locations
College Park
Duluth
McDonough
Norcross
Roswell
Marietta
Lawrenceville
Stone Mountain
Conyers
Lithia Springs
Kennesaw
Peachtree Corners
Gainesville
Buford
Lithonia
Covington
Smyrna
Commerce
Douglasville
Auburn

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Porto to Atlanta

See prices for flight routes from nearby airports that may be better suited for you.
Lisbon to Atlanta flights
Faro to Atlanta flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.