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$422+ 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 6/3. Fares are subject to change and may not be available on all flights or dates of travel.
OPO — ATL
Feb 13 — Feb 201
Fri 2/13
Fri 2/20
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 January 14, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$520
(Gotogate)

One-way from

$422
(Mytrip)

Popular in

August

Cheapest in

February

Average price

$1,054
Provider with most accurate pricing for Porto-Atlanta Hartsfield-Jackson flight deals.
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Provider most trusted by Cheapflights users for Porto-Atlanta Hartsfield-Jackson flights.
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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. 10% potential increase in price ($110 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 January 2026
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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 January 14, 2026.

This Gotogate deal was found by Cheapflights users on 1/11. 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.
Fri 3/65:35 pm
OPO
-
ATL
1 stop28h 50m
Scandinavian Airlines
Sun 3/229:00 pm
ATL
-
OPO
1 stop15h 45m
Scandinavian Airlines
Deal found 1/11$520
This Mytrip deal was found by Cheapflights users on 1/12. 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.
Tue 2/1711:35 am
OPO
-
ATL
2 stops26h 32m
Multiple Airlines
Tue 2/2410:12 am
ATL
-
OPO
2 stops24h 03m
Multiple Airlines
Deal found 1/12$593
This Mytrip deal was found by Cheapflights users on 1/12. 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.
Tue 2/1711:35 am
OPO
-
ATL
2 stops26h 32m
Multiple Airlines
Mon 2/2310:12 am
ATL
-
OPO
2 stops28h 08m
Multiple Airlines
Deal found 1/12$601
This Mytrip deal was found by Cheapflights users on 1/12. 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.
Wed 5/611:50 am
OPO
-
ATL
1 stop34h 35m
Scandinavian Airlines
Mon 5/187:25 pm
ATL
-
OPO
1 stop34h 35m
Scandinavian Airlines
Deal found 1/12$602
This Mytrip deal was found by Cheapflights users on 1/12. 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.
Mon 2/167:45 pm
OPO
-
ATL
3 stops29h 46m
Multiple Airlines
Mon 2/2312:55 pm
ATL
-
OPO
2 stops18h 10m
Multiple Airlines
Deal found 1/12$620
This Mytrip deal was found by Cheapflights users on 1/12. 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.
Wed 2/188:05 pm
OPO
-
ATL
3 stops29h 26m
Multiple Airlines
Mon 2/2312:55 pm
ATL
-
OPO
2 stops18h 10m
Multiple Airlines
Deal found 1/12$621
This Mytrip deal was found by Cheapflights users on 1/12. 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 2/126:35 am
OPO
-
ATL
3 stops31h 32m
Multiple Airlines
Mon 2/2312:55 pm
ATL
-
OPO
2 stops18h 10m
Multiple Airlines
Deal found 1/12$635
This Mytrip deal was found by Cheapflights users on 1/12. 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.
Sat 5/29:30 am
OPO
-
ATL
1 stop36h 55m
Scandinavian Airlines
Mon 5/187:25 pm
ATL
-
OPO
1 stop34h 35m
Scandinavian Airlines
Deal found 1/12$639

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 January 14, 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

Fri 3/6

5:35 pm-5:25 pm

1 stop28h 50m

Atlanta Hartsfield-Jackson

Sun 3/22

9:00 pm-4:45 pm

1 stop15h 45m

$520

PortoAtlanta

OPO - ATL

OPOATL

Porto

Mon 2/16

7:45 pm-8:31 pm

3 stops29h 46m

Atlanta Hartsfield-Jackson

Mon 2/23

12:55 pm-12:05 pm

2 stops18h 10m

$620

PortoAtlanta

OPO - ATL

OPOATL

Porto

Wed 2/18

8:05 pm-8:31 pm

3 stops29h 26m

Atlanta Hartsfield-Jackson

Mon 2/23

12:55 pm-12:05 pm

2 stops18h 10m

$621

PortoAtlanta

OPO - ATL

OPOATL

Porto

Wed 2/18

8:05 pm-8:31 pm

3 stops29h 26m

Atlanta Hartsfield-Jackson

Sun 2/22

4:55 pm-11:40 am

1 stop13h 45m

$629

PortoAtlanta

OPO - ATL

OPOATL

Porto

Thu 2/12

6:35 am-9:07 am

3 stops31h 32m

Atlanta Hartsfield-Jackson

Mon 2/23

12:55 pm-12:05 pm

2 stops18h 10m

$635

PortoAtlanta

OPO - ATL

OPOATL

Porto

Wed 2/18

7:45 am-2:30 pm

2 stops35h 45m

Atlanta Hartsfield-Jackson

Fri 2/27

4:55 pm-10:20 pm

3 stops24h 25m

$648

PortoAtlanta

OPO - ATL

OPOATL

Porto

Thu 2/12

6:35 am-9:07 am

3 stops31h 32m

Atlanta Hartsfield-Jackson

Tue 2/24

9:36 pm-1:15 pm

3 stops34h 39m

$667

PortoAtlanta

OPO - ATL

OPOATL

Porto

Thu 2/12

6:35 am-9:07 am

3 stops31h 32m

Atlanta Hartsfield-Jackson

Wed 2/25

1:00 pm-5:15 pm

3 stops23h 15m

$667

PortoAtlanta

OPO - ATL

OPOATL

Porto

Fri 2/13

11:35 am-9:07 am

2 stops26h 32m

Atlanta Hartsfield-Jackson

Mon 2/23

12:55 pm-12:05 pm

2 stops18h 10m

$673

PortoAtlanta

OPO - ATL

OPOATL

Porto

Fri 3/6

8:40 pm-8:10 pm

2 stops28h 30m

Atlanta Hartsfield-Jackson

Sun 3/22

11:10 pm-8:00 pm

2 stops16h 50m

$676

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/12

Showing 1-10 of 18 results
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Compare providers for flights from Porto to Atlanta

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Porto to Atlanta in January.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Porto-Atlanta flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Porto-Atlanta flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

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, February is the cheapest month in which you can book a flight from Porto to Atlanta (average of $646). Flying from Porto to Atlanta in July is currently the most expensive (average of $895). 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.

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 January 14, 2026.
See what other customers who have flown with KLM 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.
KLM
7.7
Good
1,437 reviews

Entertainment

7.1

Boarding

7.7

Overall

7.7

Comfort

7.6

Food

7.2

Crew

8.4

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.
KLM
7.7
Good
1,437 reviews
KLM
7.7
Good
1,437 reviews

Entertainment

7.1

Boarding

7.7

Overall

7.7

Comfort

7.6

Food

7.2

Crew

8.4

Reviews

1 / 20
10.0
Excellent

Snapyou,Jan 2026

TPA - LHR

Flight operated by Virgin Atlantic - usual high standard service by Virgin.

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.

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

    According to our current data, KLM ($871), offers the cheapest pricing from Porto to Atlanta. You may be able to fly from Porto to Atlanta for 4% 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, February is the cheapest month in which you can book a flight from Porto to Atlanta (average of $646). Flying from Porto to Atlanta in July is currently the most expensive (average of $895). 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
College Park
Duluth
McDonough
Roswell
Norcross
Marietta
Stone Mountain
Lawrenceville
Conyers
Lithia Springs
Kennesaw
Peachtree Corners
Buford
Lithonia
Covington
Smyrna
Commerce
Douglasville
Auburn
Suwanee

Browse thousands of different options on Cheapflights for your next trip

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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.
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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 January 14, 2026.
AirlineCheapestAverageFlexibilityOn-time
KLMCheapest$871Average$871FlexibilityNo cancel feeOn-time75%

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