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$294+ 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 12/14. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — ATL
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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Cheap 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 September 15, 2025.

Round-trip from

$586
(Scandinavian Airlines)

One-way from

$294
(Kiwi.com)

Popular in

August

Cheapest in

November

Average price

$800
From Porto to Atlanta Hartsfield-Jackson
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One-way flight from Porto to Atlanta Hartsfield-Jackson
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Highest demand for flights based on searches. 12% potential increase in price ($124 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($28 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 15, 2025.

This Scandinavian Airlines deal was found by Cheapflights users on 9/15. 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.
Fri 11/145:35 pmOPO - ATL
1 stop28h 50mScandinavian Airlines
Sun 11/238:00 pmATL - OPO
1 stop15h 45mScandinavian Airlines
Deal found 9/15$586
This Scandinavian Airlines deal was found by Cheapflights users on 9/13. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/145:35 pmOPO - ATL
1 stop28h 50mScandinavian Airlines
Thu 11/208:00 pmATL - OPO
1 stop15h 55mScandinavian Airlines
Deal found 9/13$644
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Fri 11/146:35 pmOPO - ATL
1 stop19h 30mMultiple Airlines
Tue 11/189:14 amATL - OPO
2 stops21h 51mMultiple Airlines
Deal found 9/15$649
This Kiwi.com deal was found by Cheapflights users on 9/15. 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.
Fri 11/146:35 pmOPO - ATL
1 stop19h 30mMultiple Airlines
Wed 11/195:13 pmATL - OPO
1 stop13h 42mMultiple Airlines
Deal found 9/15$651
This Iberia deal was found by Cheapflights users on 9/13. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/78:40 pmOPO - ATL
2 stops31h 32mMultiple Airlines
Sun 11/2310:10 pmATL - OPO
1 stop13h 30mMultiple Airlines
Deal found 9/13$675
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/126:35 pmOPO - ATL
1 stop19h 30mMultiple Airlines
Tue 11/189:14 amATL - OPO
2 stops21h 51mMultiple Airlines
Deal found 9/13$689
This Kiwi.com deal was found by Cheapflights users on 9/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/166:35 pmOPO - ATL
1 stop19h 30mMultiple Airlines
Tue 11/189:14 amATL - OPO
2 stops21h 51mMultiple Airlines
Deal found 9/13$700

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 September 15, 2025.
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

Fri 11/14

5:35 pm-5:25 pm

1 stop28h 50m

Atlanta Hartsfield-Jackson

Thu 11/20

8:00 pm-4:55 pm

1 stop15h 55m

$644

PortoAtlanta

OPO - ATL

OPOATL

Porto

Fri 11/7

8:40 pm-11:12 pm

2 stops31h 32m

Atlanta Hartsfield-Jackson

Sun 11/23

10:10 pm-4:40 pm

1 stop13h 30m

$675

PortoAtlanta

OPO - ATL

OPOATL

Porto

Mon 11/10

5:30 pm-8:10 pm

1 stop31h 40m

Atlanta Hartsfield-Jackson

Sun 11/23

10:10 pm-4:40 pm

1 stop13h 30m

$706

PortoAtlanta

OPO - ATL

OPOATL

Porto

Wed 11/12

6:30 pm-8:10 pm

1 stop30h 40m

Atlanta Hartsfield-Jackson

Sat 11/22

4:51 pm-7:15 pm

2 stops21h 24m

$706

PortoAtlanta

OPO - ATL

OPOATL

Porto

Sun 11/16

8:05 pm-8:10 pm

1 stop29h 05m

Atlanta Hartsfield-Jackson

Sun 11/23

3:09 pm-4:40 pm

2 stops20h 31m

$706

PortoAtlanta

OPO - ATL

OPOATL

Porto

Mon 11/10

5:30 pm-8:10 pm

1 stop31h 40m

Atlanta Hartsfield-Jackson

Sat 11/22

10:10 pm-7:15 pm

1 stop16h 05m

$706

PortoAtlanta

OPO - ATL

OPOATL

Porto

Fri 11/14

6:05 pm-8:10 pm

1 stop31h 05m

Atlanta Hartsfield-Jackson

Mon 11/24

12:49 pm-4:40 pm

2 stops22h 51m

$706

PortoAtlanta

OPO - ATL

OPOATL

Porto

Thu 11/13

4:55 pm-8:10 pm

1 stop32h 15m

Atlanta Hartsfield-Jackson

Sat 11/22

10:10 pm-7:15 pm

1 stop16h 05m

$706

PortoAtlanta

OPO - ATL

OPOATL

Porto

Thu 11/13

4:55 pm-8:10 pm

1 stop32h 15m

Atlanta Hartsfield-Jackson

Sun 11/23

4:35 pm-4:40 pm

2 stops19h 05m

$706

PortoAtlanta

OPO - ATL

OPOATL

Porto

Sat 11/15

8:05 pm-8:10 pm

1 stop29h 05m

Atlanta Hartsfield-Jackson

Sun 11/23

10:10 pm-4:40 pm

1 stop13h 30m

$706

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

Showing 1-10 of 16 results
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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.

Cheapflights Insights

Everything you need to know about your flight from Porto to Atlanta

What is the cheapest month to book a flight from Porto to Atlanta?

Currently, August is the cheapest month in which you can book a flight from Porto to Atlanta (average of $190). Flying from Porto to Atlanta in June is currently the most expensive (average of $246). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from OPO to ATL?

Find hourly flight availability from Porto to Atlanta. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Porto to Atlanta as you normally would.

Reviews of airlines servicing Atlanta

Get insights into the airlines that provide service to Atlanta. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Atlanta. Reviews last updated September 15, 2025.
See what other customers who have flown with United Airlines from Porto to Atlanta have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,929 reviews

Overall

7.4

Food

6.6

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.
United Airlines
7.4
Good
8,929 reviews
United Airlines
7.4
Good
8,929 reviews

Overall

7.4

Food

6.6

Boarding

7.7

Entertainment

7.1

Comfort

7.3

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

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 28h 50m. Porto and Atlanta are separated by a distance of 4053 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Porto to Atlanta round-trip?

    According to our current data, United Airlines ($702), offers the cheapest pricing from Porto to Atlanta. You may be able to fly from Porto to Atlanta for 22% less than the average price by searching for this airline.

  • 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.

  • What is the cheapest month to book a flight from Porto to Atlanta?

    Currently, August is the cheapest month in which you can book a flight from Porto to Atlanta (average of $190). Flying from Porto to Atlanta in June is currently the most expensive (average of $246). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Atlanta?

Book flights to Atlanta if you plan to visit one of these locations
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College Park
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McDonough
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Stone Mountain
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Buford
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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

Top airline flying from Porto to Atlanta

Discover the top airline that operate flights from Porto to Atlanta. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$702Average$1,058FlexibilityNo cancel feeOn-time69%

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