HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Porto

$395+ Cheap flights from Atlanta (ATL) to Porto (OPO)

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 5/25. Fares are subject to change and may not be available on all flights or dates of travel.
ATL — OPO
Jan 21 — Jan 281
Tue 1/21
Tue 1/28
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Atlanta to Porto 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.

The best prices from Atlanta Hartsfield-Jackson to Porto are usually found in January or February, booked 74 days in advance, depart on a Tuesday or Monday and return on a Monday

Cheap flight deals from Atlanta to Porto

Discover tips and strategies to find the most affordable flight options for your journey from Atlanta (ATL) to Porto (OPO). 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 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$595
(Trip.com)

One-way from

$395
(Kiwi.com)

Popular in

June

Cheapest in

January

Average price

$687
Provider with most accurate pricing for Atlanta Hartsfield-Jackson-Porto flight deals.
Search Deals
Provider most trusted by Cheapflights users for Atlanta Hartsfield-Jackson-Porto flights.
Search Deals
From Atlanta Hartsfield-Jackson to Porto
Search Deals
One-way flight from Atlanta Hartsfield-Jackson to Porto
Search Deals
High demand for flights, 23% potential price rise
Search Deals
Best time to find cheap flights, 3% potential price drop
Search Deals
Average for round-trip flights in January 2025
Search Deals

Find flight deals from Atlanta to Porto

Cheapest flights from Atlanta to Porto
Explore the most affordable flight options available from Atlanta to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 16, 2025.

This Trip.com deal was found by Cheapflights users on 1/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/276:58 pmATL - OPO
1 stop12h 02mMultiple Airlines
Mon 3/38:00 pmOPO - ATL
2 stops33h 42mMultiple Airlines
Deal found 1/15$595
This American Airlines deal was found by Cheapflights users on 1/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/1111:03 amATL - OPO
2 stops15h 37mAmerican Airlines
Tue 2/1812:25 pmOPO - ATL
2 stops17h 22mAmerican Airlines
Deal found 1/15$612
This United Airlines deal was found by Cheapflights users on 1/16. 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.
Wed 3/195:50 pmATL - OPO
1 stop13h 50mUnited Airlines
Mon 3/3112:05 pmOPO - ATL
2 stops38h 24mUnited Airlines
Deal found 1/16$617
This Gotogate deal was found by Cheapflights users on 1/15. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/266:12 pmATL - OPO
2 stops17h 28mBritish Airways
Mon 2/1012:25 pmOPO - ATL
2 stops38h 12mBritish Airways
Deal found 1/15$621
This KLM deal was found by Cheapflights users on 1/15. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/113:47 pmATL - OPO
1 stop14h 03mKLM
Tue 2/186:00 amOPO - ATL
1 stop13h 55mKLM
Deal found 1/15$628
This Travelocity deal was found by Cheapflights users on 1/16. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/195:50 pmATL - OPO
1 stop17h 25mLufthansa
Mon 3/314:35 pmOPO - ATL
1 stop26h 45mLufthansa
Deal found 1/16$629
This Delta deal was found by Cheapflights users on 1/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/1112:42 pmATL - OPO
2 stops17h 08mDelta
Tue 2/1811:15 amOPO - ATL
1 stop14h 15mDelta
Deal found 1/15$632
This Kiwi.com deal was found by Cheapflights users on 1/14. 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.
Thu 4/247:55 pmATL - OPO
1 stop16h 10mScandinavian Airlines
Wed 4/3012:05 pmOPO - ATL
1 stop34h 15mScandinavian Airlines
Deal found 1/14$659
This Iberia deal was found by Cheapflights users on 1/16. 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.
Thu 1/308:34 amATL - OPO
2 stops18h 06mIberia
Wed 2/58:40 pmOPO - ATL
2 stops27h 43mIberia
Deal found 1/16$663
This FlightHub deal was found by Cheapflights users on 1/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1310:00 pmATL - OPO
1 stop31h 00mTurkish Airlines
Tue 11/1811:00 amOPO - ATL
1 stop37h 55mTurkish Airlines
Deal found 1/14$671
This SWISS deal was found by Cheapflights users on 1/16. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/231:30 pmATL - OPO
2 stops40h 40mSWISS
Wed 1/2912:05 pmOPO - ATL
2 stops38h 38mSWISS
Deal found 1/16$690
This Air Canada deal was found by Cheapflights users on 1/16. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/411:45 amATL - OPO
2 stops25h 45mAir Canada
Tue 4/88:40 amOPO - ATL
2 stops17h 53mAir Canada
Deal found 1/16$854

Find flights from Atlanta to Porto within your budget

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, Cheapflights users made 2,558,603 searches. Data last updated January 16, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Thu 2/27

6:58 pm-12:00 pm

1 stop12h 02m

Porto

Mon 3/3

8:00 pm-12:42 am

2 stops33h 42m

$595

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Tue 2/11

11:03 am-7:40 am

2 stops15h 37m

Porto

Tue 2/18

12:25 pm-12:47 am

2 stops17h 22m

$612

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Wed 3/19

5:50 pm-11:40 am

1 stop13h 50m

Porto

Mon 3/31

12:05 pm-9:29 pm

2 stops38h 24m

$617

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Sun 1/26

6:12 pm-4:40 pm

2 stops17h 28m

Porto

Mon 2/10

12:25 pm-9:37 pm

2 stops38h 12m

$621

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Tue 2/11

3:47 pm-10:50 am

1 stop14h 03m

Porto

Tue 2/18

6:00 am-2:55 pm

1 stop13h 55m

$628

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Tue 2/11

12:42 pm-10:50 am

2 stops17h 08m

Porto

Tue 2/18

11:15 am-8:30 pm

1 stop14h 15m

$632

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Fri 2/21

2:57 pm-11:40 am

2 stops15h 43m

Porto

Tue 2/25

6:00 am-3:05 pm

1 stop14h 05m

$655

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Thu 4/24

7:55 pm-5:05 pm

1 stop16h 10m

Porto

Wed 4/30

12:05 pm-5:20 pm

1 stop34h 15m

$659

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Thu 1/30

8:34 am-7:40 am

2 stops18h 06m

Porto

Wed 2/5

8:40 pm-7:23 pm

2 stops27h 43m

$663

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Sun 3/23

11:00 pm-3:10 pm

1 stop36h 10m

Porto

Sat 3/29

4:10 pm-7:50 pm

1 stop31h 40m

$680

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/16

Showing 1-10 of 17 results
1
2

Compare providers for flights from Atlanta to Porto

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 Atlanta to Porto in January.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*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 Atlanta-Porto flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Atlanta-Porto flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Atlanta-Porto flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Atlanta-Porto 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 Atlanta-Porto 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 Atlanta to Porto

Have a flexible travel schedule? Discover the best time to fly to Porto from Atlanta 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.

Travel insights for flights from Atlanta to Porto

Get recent, data-driven insights about flights from Atlanta to Porto including ideal travel times, pricing trends, and more.

How far ahead should I book a flight from Atlanta to Porto?

Use this chart to determine the optimal time to book a round-trip flight from Atlanta to Porto. Price data was last updated on January 10, 2025.

Booking 74 days in advance of your planned departure date is, on average, the best time to get cheap flights from Atlanta to Porto. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, January is the cheapest month in which you can book a flight from Atlanta to Porto (average of $523). Flying from Atlanta to Porto in June is currently the most expensive (average of $1,083). 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 ATL to OPO?

Find hourly flight availability from Atlanta to Porto. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 16, 2025.

It’s typically best to fly out from Atlanta to Porto in the morning. Doing so could potentially save you 30% on the flight price compared to flying in the afternoon, which is usually more expensive.

What is the cheapest day to fly from Atlanta to Porto?

Use this chart to determine the cheapest time to fly round-trip from Atlanta to Porto. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Atlanta to Porto flight should consider departing on Tuesday mornings when fares are most often at their lowest. Friday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Porto by month

Plan your trip to Porto by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Porto ranges from 0.7 - 7.7 inches per month. December is typically the wettest month, when rainfall can reach 7.7 in. July is typically the driest time to visit Porto when rainfall is around 0.7 in.

Temperature in Porto by month

Plan your trip to Porto by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Porto, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 68.0 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

Reviews of airlines servicing Porto

Get insights into the airlines that provide service to Porto. 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 Porto. Reviews last updated January 16, 2025.
See what other customers who have flown with American Airlines, Air Canada and British Airways from Atlanta to Porto have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,511 reviews

Boarding

8.2

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Delta
8.0
Very good
8,511 reviews
Delta
8.0
Very good
8,511 reviews

Boarding

8.2

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

KLM
7.8
Good
1,339 reviews
Delta
8.0
Very good
8,511 reviews

Boarding

8.2

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

SWISS
7.5
Good
1,598 reviews
Delta
8.0
Very good
8,511 reviews

Boarding

8.2

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

United Airlines
7.4
Good
8,964 reviews
Delta
8.0
Very good
8,511 reviews

Boarding

8.2

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Turkish Airlines
7.3
Good
3,921 reviews
Delta
8.0
Very good
8,511 reviews

Boarding

8.2

Crew

8.6

Overall

8.0

Comfort

8.0

Entertainment

7.9

Food

7.3

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Related info for your journey

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

  • What are the cheapest airlines flying from Atlanta to Porto round-trip?

    Flying on United Airlines is currently your cheapest option to Porto, with prices starting at $617. Additional round-trip tickets that might be worth considering are offered by KLM and Air Canada, with the lowest prices starting at $628 and $653, respectively. United Airlines is priced at 41% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Atlanta to Porto one-way?

    For one-way options, check prices for TAP AIR PORTUGAL. According to our data, you can fly for as low as $910. Users have also found prices from $911 and $968 on Scandinavian Airlines and Turkish Airlines, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Atlanta to Porto 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 Atlanta to Porto?

    Currently, January is the cheapest month in which you can book a flight from Atlanta to Porto (average of $523). Flying from Atlanta to Porto in June is currently the most expensive (average of $1,083). 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
Aveiro
Coimbra
Matosinhos
Arcos de Valdevez

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.

Top 7 airlines flying from Atlanta to Porto

Discover the top 7 airlines that operate flights from Atlanta to Porto. 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 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
LufthansaCheapest$568Average$668FlexibilityNo cancel feeOn-time76%
KLMCheapest$589Average$1,046FlexibilityNo cancel feeOn-time75%
DeltaCheapest$613Average$1,146FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$622Average$820FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$818Average$1,347FlexibilityNo cancel feeOn-time69%
TAP AIR PORTUGALCheapest$975Average$1,269FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$1,111Average$1,235FlexibilityNo cancel feeOn-time77%
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.