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$180+ 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 3/9. Fares are subject to change and may not be available on all flights or dates of travel.
ATL — LIS
Feb 14 — Feb 211
Sat 2/14
Sat 2/21
1 adult, Economy
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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 January 15, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$439
(United Airlines)

One-way from

$180
(Mytrip)

Popular in

June

Cheapest in

January

Average price

$657
Provider with most accurate pricing for Atlanta Hartsfield-Jackson-Lisbon Humberto Delgado flight deals.
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Provider most trusted by Cheapflights users for Atlanta Hartsfield-Jackson-Lisbon Humberto Delgado flights.
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From Atlanta Hartsfield-Jackson to Portugal
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One-way flight from Atlanta Hartsfield-Jackson to Portugal
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Highest demand for flights based on searches. 21% potential increase in price ($246 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($29 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 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 January 15, 2026.

This United Airlines deal was found by Cheapflights users on 1/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/227:45 am
ATL
-
OPO
1 stop20h 45m
United Airlines
Tue 3/1012:35 pm
OPO
-
ATL
2 stops25h 45m
United Airlines
Deal found 1/13$439
This British Airways deal was found by Cheapflights users on 1/13. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/229:10 am
ATL
-
OPO
2 stops26h 30m
British Airways
Tue 3/108:40 pm
OPO
-
ATL
2 stops26h 36m
British Airways
Deal found 1/13$445
This Travelocity 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/310:10 pm
ATL
-
OPO
1 stop14h 35m
British Airways
Thu 3/128:20 am
OPO
-
ATL
2 stops17h 41m
British Airways
Deal found 1/14$448
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/254:35 pm
ATL
-
OPO
1 stop11h 55m
United Airlines
Wed 3/1112:35 pm
OPO
-
ATL
2 stops25h 45m
United Airlines
Deal found 1/15$450
This KAYAK deal was found by Cheapflights users on 1/13. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/34:35 pm
ATL
-
OPO
1 stop11h 55m
Multiple Airlines
Thu 3/1212:35 pm
OPO
-
ATL
1 stop24h 27m
Multiple Airlines
Deal found 1/13$453
This Ovago 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/252:39 pm
ATL
-
OPO
1 stop13h 51m
SWISS
Wed 3/1112:35 pm
OPO
-
ATL
1 stop24h 27m
SWISS
Deal found 1/15$455
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/174:29 pm
ATL
-
OPO
2 stops18h 31m
Iberia
Tue 2/249:55 pm
OPO
-
ATL
2 stops26h 23m
Iberia
Deal found 1/14$458
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.
Wed 2/114:55 pm
ATL
-
LIS
1 stop13h 40m
Lufthansa
Wed 2/185:00 am
LIS
-
ATL
1 stop14h 30m
Lufthansa
Deal found 1/14$459
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/22:39 pm
ATL
-
LIS
2 stops12h 31m
United Airlines
Fri 3/135:00 am
LIS
-
ATL
1 stop14h 30m
United Airlines
Deal found 1/15$460
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/259:39 am
ATL
-
LIS
1 stop19h 36m
United Airlines
Wed 12/26:10 am
LIS
-
ATL
2 stops20h 33m
United Airlines
Deal found 1/14$461
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/34:35 pm
ATL
-
OPO
1 stop11h 55m
United Airlines
Thu 3/1212:35 pm
OPO
-
ATL
2 stops35h 01m
United Airlines
Deal found 1/15$461
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2510:00 am
ATL
-
LIS
1 stop17h 00m
Delta
Fri 12/411:15 am
LIS
-
ATL
2 stops15h 21m
Delta
Deal found 1/14$462

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 January 15, 2026.
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

AtlantaLisbon

ATL - LIS

ATLLIS

Atlanta Hartsfield-Jackson

Sun 2/8

1:15 pm-8:10 am

2 stops13h 55m

Lisbon Humberto Delgado

Wed 2/18

11:20 am-12:03 pm

1 stop29h 43m

$460

AtlantaLisbon

ATL - LIS

ATLLIS

Atlanta Hartsfield-Jackson

Tue 3/3

11:30 am-10:15 am

2 stops17h 45m

Lisbon Humberto Delgado

Thu 3/12

11:55 am-10:20 am

2 stops26h 25m

$462

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Mon 3/9

4:41 pm-9:30 am

1 stop12h 49m

Porto

Thu 3/19

6:00 am-2:49 pm

2 stops36h 49m

$462

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Mon 3/9

6:40 pm-10:30 am

1 stop11h 50m

Porto

Thu 3/19

11:20 am-8:40 pm

1 stop13h 20m

$464

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Tue 3/3

5:40 pm-10:30 am

1 stop11h 50m

Porto

Thu 3/12

11:20 am-8:40 pm

1 stop13h 20m

$464

AtlantaLisbon

ATL - LIS

ATLLIS

Atlanta Hartsfield-Jackson

Sun 2/15

3:22 pm-5:45 pm

2 stops21h 23m

Lisbon Humberto Delgado

Tue 3/17

7:40 pm-10:01 pm

2 stops30h 21m

$474

AtlantaFunchal

ATL - FNC

ATLFNC

Atlanta Hartsfield-Jackson

Sun 2/22

10:10 pm-2:15 pm

1 stop35h 05m

Funchal Madeira

Mon 3/2

12:25 pm-8:10 pm

1 stop36h 45m

$487

AtlantaFunchal

ATL - FNC

ATLFNC

Atlanta Hartsfield-Jackson

Wed 3/4

10:10 pm-11:20 am

1 stop32h 10m

Funchal Madeira

Mon 3/16

12:25 pm-9:10 pm

1 stop36h 45m

$487

AtlantaFunchal

ATL - FNC

ATLFNC

Atlanta Hartsfield-Jackson

Tue 3/3

10:10 pm-11:10 am

1 stop32h 00m

Funchal Madeira

Mon 3/16

5:05 pm-9:10 pm

1 stop32h 05m

$487

AtlantaFunchal

ATL - FNC

ATLFNC

Atlanta Hartsfield-Jackson

Tue 3/3

11:06 am-11:10 am

2 stops43h 04m

Funchal Madeira

Tue 3/17

3:05 pm-9:10 pm

1 stop34h 05m

$491

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/14

Showing 1-10 of 54 results
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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, February is the cheapest month in which you can book a flight from Atlanta to Portugal (average of $455). Flying from Atlanta to Portugal in June is currently the most expensive (average of $892). 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.

How often are flights from Atlanta to Portugal delayed?

About 100% of weekly flights between Atlanta and Portugal have experienced delays in the past year, with the average delay time being 669 minutes.

What is the most punctual flight time for Atlanta to Portugal flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving at night tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Friday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on Atlanta to Portugal flights?

Over the last year, Delta have had the lowest number of delays on this route, with just 100% of flights being delayed.

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 January 15, 2026.
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
8,049 reviews

Entertainment

7.8

Food

7.2

Comfort

7.9

Boarding

8.1

Overall

7.9

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
8,049 reviews
Delta
7.9
Good
8,049 reviews

Entertainment

7.8

Food

7.2

Comfort

7.9

Boarding

8.1

Overall

7.9

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
1,440 reviews
Delta
7.9
Good
8,049 reviews

Entertainment

7.8

Food

7.2

Comfort

7.9

Boarding

8.1

Overall

7.9

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
9,164 reviews
Delta
7.9
Good
8,049 reviews

Entertainment

7.8

Food

7.2

Comfort

7.9

Boarding

8.1

Overall

7.9

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
11,132 reviews
Delta
7.9
Good
8,049 reviews

Entertainment

7.8

Food

7.2

Comfort

7.9

Boarding

8.1

Overall

7.9

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
7,676 reviews
Delta
7.9
Good
8,049 reviews

Entertainment

7.8

Food

7.2

Comfort

7.9

Boarding

8.1

Overall

7.9

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 United Airlines, British Airways, and Lufthansa fly from Atlanta to Portugal in about 13h 55m. The time it takes to get you to your destination can typically vary by up to 7h 28m. The distance between Atlanta and Portugal is about 4089 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    $226 is the cheapest one-way deal found within the past few days, from British Airways. You may also be able to find cheap deals on Air Canada and United Airlines, with prices starting from $359 and $364, respectively.

  • 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, February is the cheapest month in which you can book a flight from Atlanta to Portugal (average of $455). Flying from Atlanta to Portugal in June is currently the most expensive (average of $892). 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.

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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 January 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$484Average$604FlexibilityNo cancel feeOn-time77%
KLMCheapest$514Average$871FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$521Average$800FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$555Average$1,059FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$561Average$936FlexibilityNo cancel feeOn-time70%
Virgin AtlanticCheapest$584Average$1,093FlexibilityNo cancel feeOn-time72%
DeltaCheapest$613Average$1,012FlexibilityNo cancel feeOn-timeN/A
Air CanadaCheapest$629Average$949FlexibilityNo cancel feeOn-time67%
Turkish AirlinesCheapest$644Average$708FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$669Average$1,171FlexibilityNo cancel feeOn-time71%

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