HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Portugal

$259+ Cheap flights from Atlanta (ATL) to Portugal

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 11/27. Fares are subject to change and may not be available on all flights or dates of travel.
ATL — LIS
Nov 29 — Dec 61
Sat 11/29
Sat 12/6
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Atlanta to Portugal 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.

Find flight deals from Atlanta to Portugal

Cheapest flights from Atlanta to Portugal
Explore the most affordable flight options available from Atlanta to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 30, 2025.

This KLM deal was found by Cheapflights users on 10/27. 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 11/253:50 pmATL - OPO
1 stop13h 40mKLM
Wed 12/36:00 amOPO - ATL
1 stop15h 55mKLM
Deal found 10/27$526
This KLM deal was found by Cheapflights users on 10/27. 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.
Wed 11/265:10 pmATL - OPO
1 stop12h 20mKLM
Wed 12/36:00 amOPO - ATL
1 stop15h 55mKLM
Deal found 10/27$532
This United Airlines deal was found by Cheapflights users on 10/27. 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 11/268:10 amATL - OPO
2 stops20h 20mUnited Airlines
Wed 12/312:30 pmOPO - ATL
2 stops33h 58mUnited Airlines
Deal found 10/27$543
This AirNGo deal was found by Cheapflights users on 10/28. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/283:50 pmATL - FAO
1 stop20h 05mKLM
Thu 12/117:05 pmFAO - ATL
1 stop30h 40mKLM
Deal found 10/28$544
This United deal was found by Cheapflights users on 10/28. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/287:00 amATL - FAO
2 stops28h 05mMultiple Airlines
Thu 12/111:10 pmFAO - ATL
1 stop30h 20mMultiple Airlines
Deal found 10/28$545
This Delta deal was found by Cheapflights users on 10/27. 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 11/2512:45 pmATL - OPO
2 stops16h 45mDelta
Wed 12/36:00 amOPO - ATL
2 stops17h 40mDelta
Deal found 10/27$546
This Mytrip deal was found by Cheapflights users on 10/28. 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 11/175:45 pmATL - LIS
2 stops15h 50mMultiple Airlines
Wed 12/312:15 pmLIS - ATL
3 stops33h 45mMultiple Airlines
Deal found 10/28$551
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Fri 11/288:10 amATL - FAO
2 stops26h 55mUnited Airlines
Thu 12/111:10 pmFAO - ATL
2 stops37h 08mUnited Airlines
Deal found 10/28$551
This CheapOair deal was found by Cheapflights users on 10/28. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2712:55 pmATL - LIS
1 stop15h 25mMultiple Airlines
Thu 12/45:00 amLIS - ATL
1 stop14h 30mMultiple Airlines
Deal found 10/28$552
This United Airlines deal was found by Cheapflights users on 10/28. 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 11/2712:55 pmATL - LIS
1 stop15h 25mUnited Airlines
Thu 12/410:55 amLIS - ATL
3 stops39h 23mUnited Airlines
Deal found 10/28$553
This Gurufare deal was found by Cheapflights users on 10/30. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/104:35 pmATL - LIS
1 stop13h 55mLufthansa
Mon 11/243:55 pmLIS - ATL
1 stop27h 35mLufthansa
Deal found 10/30$554
This CrystalTravel deal was found by Cheapflights users on 10/29. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/114:35 pmATL - LIS
1 stop14h 00mLufthansa
Sun 11/235:00 amLIS - ATL
1 stop14h 30mLufthansa
Deal found 10/29$555

Cheap flight deals from Atlanta to Portugal

Keep the following information in mind while searching for Atlanta to Portugal flight deals. Data was last updated October 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$505
(Gotogate)

One-way from

$259
(Mytrip)

Popular in

June

Cheapest in

February

Average price

$881
Provider with most accurate pricing for Atlanta Hartsfield-Jackson-Lisbon Humberto Delgado flight deals.
Search Deals
Provider most trusted by Cheapflights users for Atlanta Hartsfield-Jackson-Lisbon Humberto Delgado flights.
Search Deals
From Atlanta Hartsfield-Jackson to Portugal
Search Deals
One-way flight from Atlanta Hartsfield-Jackson to Portugal
Search Deals
Highest demand for flights based on searches. 21% potential increase in price ($246 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($31 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Atlanta to Portugal 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 October 30, 2025.
Use the filters below to find and compare flights from Atlanta to Portugal that are best for you.

Fly from

Atlanta

Fly to

Portugal

Route

Depart

Return

Price

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Tue 11/25

3:50 pm-10:30 am

1 stop13h 40m

Porto

Wed 12/3

6:00 am-4:55 pm

1 stop15h 55m

$526

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Thu 1/22

3:50 pm-10:25 am

1 stop13h 35m

Porto

Thu 2/5

11:15 am-8:45 pm

1 stop14h 30m

$526

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Thu 1/22

12:00 pm-10:25 am

2 stops17h 25m

Porto

Thu 2/5

11:15 am-8:45 pm

1 stop14h 30m

$531

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Wed 11/26

5:10 pm-10:30 am

1 stop12h 20m

Porto

Wed 12/3

6:00 am-4:55 pm

1 stop15h 55m

$532

AtlantaFunchal

ATL - FNC

ATLFNC

Atlanta Hartsfield-Jackson

Mon 1/19

10:59 pm-9:30 am

2 stops53h 31m

Funchal Madeira

Mon 1/26

10:25 am-1:35 pm

1 stop32h 10m

$532

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Wed 11/26

12:59 pm-10:30 am

2 stops16h 31m

Porto

Wed 12/3

6:00 am-4:55 pm

1 stop15h 55m

$536

AtlantaFaro

ATL - FAO

ATLFAO

Atlanta Hartsfield-Jackson

Fri 11/28

3:50 pm-4:55 pm

1 stop20h 05m

Faro

Thu 12/11

7:05 pm-8:45 pm

1 stop30h 40m

$544

AtlantaFaro

ATL - FAO

ATLFAO

Atlanta Hartsfield-Jackson

Fri 11/28

9:35 am-4:05 pm

2 stops25h 30m

Faro

Thu 12/11

1:10 pm-2:30 pm

1 stop30h 20m

$545

AtlantaFaro

ATL - FAO

ATLFAO

Atlanta Hartsfield-Jackson

Fri 11/28

7:00 am-4:05 pm

2 stops28h 05m

Faro

Thu 12/11

1:10 pm-2:30 pm

1 stop30h 20m

$545

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Tue 11/25

2:42 pm-9:30 am

2 stops13h 48m

Porto

Wed 12/3

12:30 pm-9:53 pm

2 stops38h 23m

$546

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Showing 1-10 of 50 results
1
2
3
...
5

Best time to book a flight from Atlanta to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal 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.

Cheapflights Insights

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

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

Currently, November is the cheapest month in which you can book a flight from Atlanta to Portugal (average of $516). Flying from Atlanta to Portugal in June is currently the most expensive (average of $888). 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 PT?

Find hourly flight availability from Atlanta to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 30, 2025.

It’s typically best to fly out from Atlanta to Portugal in the evening. Doing so could potentially save you 27% 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 Portugal?

Use this chart to determine the cheapest time to fly round-trip from Atlanta to Portugal. Price data was last updated on October 27, 2024.

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

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. 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 Portugal. Reviews last updated October 30, 2025.
Peruse reviews from past customers who have flown with Delta, KLM, and United Airlines from Atlanta to Portugal to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,993 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Santiago,Apr 2024

ATL - JNB

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
7.9
Good
7,993 reviews
Delta
7.9
Good
7,993 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Santiago,Apr 2024

ATL - JNB

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
7.7
Good
1,406 reviews
Delta
7.9
Good
7,993 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Santiago,Apr 2024

ATL - JNB

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
8,998 reviews
Delta
7.9
Good
7,993 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Santiago,Apr 2024

ATL - JNB

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.
American Airlines
7.2
Good
11,030 reviews
Delta
7.9
Good
7,993 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Santiago,Apr 2024

ATL - JNB

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.
British Airways
6.7
Okay
7,487 reviews
Delta
7.9
Good
7,993 reviews

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
2.0
Mediocre

Santiago,Apr 2024

ATL - JNB

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 Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Atlanta to Portugal?

    Atlanta Hartsfield-Jackson (ATL) is the airport you will fly out of if you book a flight from Atlanta to Portugal. It is only a 8.2 mi journey to Hartsfield-Jackson (ATL) from Atlanta’s city center.

  • How long is the flight from Atlanta to Portugal?

    Airlines like KLM, Delta, and United Airlines fly from Atlanta to Portugal in about 13h 40m. The time it takes to get you to your destination can typically vary by up to 11h 50m. The distance between Atlanta and Portugal is about 4053 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Atlanta to Portugal?

    The most popular flight routes from Atlanta to Portugal are Atlanta Hartsfield-Jackson - Lisbon Humberto Delgado, Atlanta Hartsfield-Jackson - Porto and Atlanta Hartsfield-Jackson - Ponta Delgada Nordela.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Atlanta to Portugal (average of $516). Flying from Atlanta to Portugal in June is currently the most expensive (average of $888). 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

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 Atlanta to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
Atlanta to Heathrow flights
Atlanta to Frankfurt flights
Atlanta to Istanbul flights
Atlanta to Charles de Gaulle flights
Atlanta to Leonardo da Vinci/Fiumicino flights
Atlanta to Amsterdam flights
Atlanta to Gatwick flights
Atlanta to Madrid flights
Atlanta to London City flights
Atlanta to Barcelona-El Prat flights
Atlanta to Dublin flights
Atlanta to Sabiha Gokcen flights
Atlanta to Orly flights
Atlanta to Athens flights
Atlanta to Malpensa flights
Atlanta to Lisbon flights
Atlanta to Munich flights
Atlanta to Linate flights
Atlanta to Zurich flights
Atlanta to Stansted flights
Atlanta to Copenhagen flights
Atlanta to Vicenza flights
Atlanta to Bruxelles-National flights
Atlanta to Berlin flights
Atlanta to Porto flights
Atlanta to Krakow flights
Atlanta to Vienna flights
Atlanta to Budapest flights
Atlanta to Edinburgh flights
Atlanta to Málaga flights
Atlanta to Prague flights
Jacksonville to Istanbul flights
Atlanta to Bergamo flights
Atlanta to Keflavik Intl flights
Jacksonville to Charles de Gaulle flights
Atlanta to Luton flights
Atlanta to Florence flights
Atlanta to Frederic Chopin flights
Jacksonville to Heathrow flights
Atlanta to Oslo Gardermoen flights
Jacksonville to Athens flights
Atlanta to Manchester flights
Atlanta to Geneva flights
Asheville to Heathrow flights
Jacksonville to Orly flights
Jacksonville to Leonardo da Vinci/Fiumicino flights
Savannah to Charles de Gaulle flights
Jacksonville to Sabiha Gokcen flights
Jacksonville to Dublin flights
Savannah to Heathrow flights

Top 10 airlines flying from Atlanta to Portugal

Discover the top 10 airlines that operate flights from Atlanta to Portugal. 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 October 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$484Average$758FlexibilityNo cancel feeOn-time77%
KLMCheapest$532Average$865FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$568Average$808FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$569Average$1,121FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$570Average$941FlexibilityNo cancel feeOn-time70%
Virgin AtlanticCheapest$579Average$1,093FlexibilityNo cancel feeOn-time72%
United AirlinesCheapest$592Average$1,078FlexibilityNo cancel feeOn-time69%
DeltaCheapest$611Average$1,017FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$639Average$699FlexibilityNo cancel feeOn-time77%
Air CanadaCheapest$689Average$933FlexibilityNo cancel feeOn-time67%

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.