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$378+ 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 10/24. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — ATL
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
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 August 20, 2025.

Round-trip from

$541
(Mytrip)

One-way from

$378
(Kiwi.com)

Popular in

January

Cheapest in

November

Average price

$1,176
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. 3% potential increase in price ($32 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($27 potential savings vs. average RT price).
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Average for round-trip flights in August 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 August 20, 2025.

This Mytrip deal was found by Cheapflights users on 8/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/35:55 pmOPO - ATL
1 stop28h 25mScandinavian Airlines
Thu 10/167:55 pmATL - OPO
1 stop16h 10mScandinavian Airlines
Deal found 8/19$541
This Trip.com deal was found by Cheapflights users on 8/20. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1811:35 amOPO - ATL
2 stops25h 55mMultiple Airlines
Thu 10/29:37 amATL - OPO
2 stops24h 38mMultiple Airlines
Deal found 8/20$642
This Mytrip deal was found by Cheapflights users on 8/18. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/212:25 pmOPO - ATL
2 stops33h 55mMultiple Airlines
Thu 10/97:55 pmATL - OPO
2 stops21h 15mMultiple Airlines
Deal found 8/18$668
This Lufthansa deal was found by Cheapflights users on 8/19. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/46:00 amOPO - ATL
2 stops16h 20mLufthansa
Mon 9/84:05 pmATL - OPO
1 stop18h 40mLufthansa
Deal found 8/19$735
This Mytrip deal was found by Cheapflights users on 8/19. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/210:00 amOPO - ATL
2 stops26h 42mMultiple Airlines
Sun 10/125:22 amATL - OPO
3 stops31h 53mMultiple Airlines
Deal found 8/19$738
This United Airlines deal was found by Cheapflights users on 8/19. 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.
Thu 9/412:10 pmOPO - ATL
1 stop31h 10mUnited Airlines
Mon 9/84:29 pmATL - OPO
1 stop12h 16mUnited Airlines
Deal found 8/19$747
This Iberia deal was found by Cheapflights users on 8/19. 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 10/38:35 pmOPO - ATL
2 stops30h 33mMultiple Airlines
Thu 10/1610:25 pmATL - OPO
1 stop16h 55mMultiple Airlines
Deal found 8/19$765
This American Airlines deal was found by Cheapflights users on 8/19. 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.
Thu 10/28:15 amOPO - ATL
2 stops15h 49mAmerican Airlines
Sun 10/1211:07 amATL - OPO
2 stops15h 28mAmerican Airlines
Deal found 8/19$772

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 August 20, 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 10/3

5:55 pm-5:20 pm

1 stop28h 25m

Atlanta Hartsfield-Jackson

Thu 10/16

7:55 pm-5:05 pm

1 stop16h 10m

$541

PortoAtlanta

OPO - ATL

OPOATL

Porto

Thu 9/18

11:35 am-8:30 am

2 stops25h 55m

Atlanta Hartsfield-Jackson

Thu 10/2

9:37 am-3:15 pm

2 stops24h 38m

$642

PortoAtlanta

OPO - ATL

OPOATL

Porto

Thu 10/2

12:25 pm-5:20 pm

2 stops33h 55m

Atlanta Hartsfield-Jackson

Thu 10/9

7:55 pm-10:10 pm

2 stops21h 15m

$668

PortoAtlanta

OPO - ATL

OPOATL

Porto

Thu 9/4

6:00 am-5:20 pm

2 stops16h 20m

Atlanta Hartsfield-Jackson

Mon 9/8

4:05 pm-3:45 pm

1 stop18h 40m

$735

PortoAtlanta

OPO - ATL

OPOATL

Porto

Thu 10/2

10:00 am-7:42 am

2 stops26h 42m

Atlanta Hartsfield-Jackson

Sun 10/12

5:22 am-6:15 pm

3 stops31h 53m

$738

PortoAtlanta

OPO - ATL

OPOATL

Porto

Thu 9/4

12:10 pm-2:20 pm

1 stop31h 10m

Atlanta Hartsfield-Jackson

Mon 9/8

4:29 pm-9:45 am

1 stop12h 16m

$747

PortoAtlanta

OPO - ATL

OPOATL

Porto

Fri 10/3

8:35 pm-10:08 pm

2 stops30h 33m

Atlanta Hartsfield-Jackson

Thu 10/16

10:25 pm-8:20 pm

1 stop16h 55m

$765

PortoAtlanta

OPO - ATL

OPOATL

Porto

Fri 10/3

8:15 am-9:52 pm

2 stops18h 37m

Atlanta Hartsfield-Jackson

Thu 10/16

11:07 am-7:35 am

2 stops15h 28m

$772

PortoAtlanta

OPO - ATL

OPOATL

Porto

Fri 10/24

4:05 pm-8:13 am

3 stops45h 08m

$378

PortoAtlanta

OPO - ATL

OPOATL

Porto

Tue 10/7

8:30 am-7:16 am

3 stops51h 46m

$407

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/19

Showing 1-10 of 13 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 August 20, 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.

How much does it cost to fly round-trip from Porto to Atlanta?

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 25m. 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.

  • 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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