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Portugal

$228+ 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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
ATL — LIS
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap 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 December 18, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/297:29 pmATL - LIS
1 stop9h 46mLufthansa
Wed 1/145:00 amLIS - ATL
1 stop14h 30mLufthansa
Deal found 12/16$459
This AirNGo deal was found by Cheapflights users on 12/16. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/297:29 pmATL - LIS
1 stop9h 46mMultiple Airlines
Wed 1/145:00 amLIS - ATL
2 stops21h 43mMultiple Airlines
Deal found 12/16$497
This Mytrip deal was found by Cheapflights users on 12/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/296:47 pmATL - LIS
2 stops33h 33mAir Canada
Wed 1/145:00 amLIS - ATL
2 stops21h 43mAir Canada
Deal found 12/16$609
This Kiwi.com deal was found by Cheapflights users on 12/16. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/177:37 pmATL - LIS
1 stop9h 38mLufthansa
Thu 12/2511:55 amLIS - ATL
1 stop12h 56mLufthansa
Deal found 12/16$706
This KAYAK deal was found by Cheapflights users on 12/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/303:10 pmATL - OPO
1 stop19h 00mTurkish Airlines
Fri 1/1610:55 amOPO - ATL
1 stop31h 10mTurkish Airlines
Deal found 12/15$706
This Iberia deal was found by Cheapflights users on 12/17. 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.
Wed 12/2411:05 amATL - LIS
2 stops26h 00mMultiple Airlines
Mon 12/297:05 amLIS - ATL
1 stop18h 05mMultiple Airlines
Deal found 12/17$732
This United Airlines deal was found by Cheapflights users on 12/16. 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 12/172:37 pmATL - LIS
1 stop14h 38mUnited Airlines
Wed 12/2411:00 amLIS - ATL
2 stops39h 22mUnited Airlines
Deal found 12/16$744
This KAYAK deal was found by Cheapflights users on 12/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/303:10 pmATL - OPO
1 stop37h 45mTurkish Airlines
Mon 1/194:10 pmOPO - ATL
1 stop25h 55mTurkish Airlines
Deal found 12/15$746
This Delta deal was found by Cheapflights users on 12/15. 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.
Wed 12/313:45 pmATL - OPO
1 stop13h 45mDelta
Mon 1/196:30 amOPO - ATL
1 stop36h 05mDelta
Deal found 12/15$747
This Delta deal was found by Cheapflights users on 12/15. 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.
Mon 12/298:10 pmATL - OPO
1 stop21h 15mDelta
Tue 1/1311:15 amOPO - ATL
1 stop34h 50mDelta
Deal found 12/15$753
This United Airlines deal was found by Cheapflights users on 12/16. 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 12/172:37 pmATL - LIS
2 stops12h 33mUnited Airlines
Thu 12/2510:55 amLIS - ATL
1 stop15h 58mUnited Airlines
Deal found 12/16$754
This FlightHub deal was found by Cheapflights users on 12/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/177:37 pmATL - LIS
1 stop9h 38mLufthansa
Wed 12/2411:55 amLIS - ATL
1 stop12h 56mLufthansa
Deal found 12/16$757

Find flight deals from Atlanta to Portugal

Keep the following information in mind while searching for Atlanta to Portugal flight deals. Data was last updated December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$459
(Kiwi.com)

One-way from

$228
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$950
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. 19% potential increase in price ($224 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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 December 18, 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

AtlantaLisbon

ATL - LIS

ATLLIS

Atlanta Hartsfield-Jackson

Wed 2/4

4:08 pm-8:10 am

1 stop11h 02m

Lisbon Humberto Delgado

Wed 2/11

5:00 am-2:30 pm

1 stop14h 30m

$508

AtlantaLisbon

ATL - LIS

ATLLIS

Atlanta Hartsfield-Jackson

Wed 1/21

4:08 pm-8:10 am

1 stop11h 02m

Lisbon Humberto Delgado

Tue 1/27

5:00 am-9:43 pm

2 stops45h 43m

$515

AtlantaLisbon

ATL - LIS

ATLLIS

Atlanta Hartsfield-Jackson

Sun 2/1

4:08 pm-8:10 am

1 stop11h 02m

Lisbon Humberto Delgado

Sat 2/28

5:00 am-2:30 pm

1 stop14h 30m

$558

AtlantaLisbon

ATL - LIS

ATLLIS

Atlanta Hartsfield-Jackson

Wed 2/18

11:18 am-9:20 am

2 stops17h 02m

Lisbon Humberto Delgado

Wed 4/15

5:05 am-1:55 pm

1 stop13h 50m

$558

AtlantaLisbon

ATL - LIS

ATLLIS

Atlanta Hartsfield-Jackson

Mon 1/12

4:12 pm-8:10 am

1 stop10h 58m

Lisbon Humberto Delgado

Mon 1/19

5:00 am-2:30 pm

1 stop14h 30m

$558

AtlantaFunchal

ATL - FNC

ATLFNC

Atlanta Hartsfield-Jackson

Mon 1/26

10:10 pm-3:10 pm

1 stop36h 00m

Funchal Madeira

Wed 2/4

4:00 pm-8:10 pm

1 stop33h 10m

$562

AtlantaLisbon

ATL - LIS

ATLLIS

Atlanta Hartsfield-Jackson

Mon 2/9

10:10 am-8:10 am

2 stops17h 00m

Lisbon Humberto Delgado

Sat 2/21

5:00 am-2:30 pm

1 stop14h 30m

$562

AtlantaLisbon

ATL - LIS

ATLLIS

Atlanta Hartsfield-Jackson

Thu 1/8

1:15 pm-8:10 am

2 stops13h 55m

Lisbon Humberto Delgado

Fri 1/16

5:00 am-2:30 pm

1 stop14h 30m

$563

AtlantaLisbon

ATL - LIS

ATLLIS

Atlanta Hartsfield-Jackson

Thu 1/8

4:55 pm-11:35 am

1 stop13h 40m

Lisbon Humberto Delgado

Thu 1/15

11:20 am-5:36 pm

2 stops35h 16m

$576

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Mon 3/23

6:40 pm-10:30 am

1 stop11h 50m

Porto

Tue 3/31

4:20 pm-12:45 pm

1 stop25h 25m

$577

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Showing 1-10 of 50 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 $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 December 18, 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 December 16, 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.

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 December 18, 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
8,009 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.1

Overall

7.9

Comfort

7.9

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
8,009 reviews
Delta
7.9
Good
8,009 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.1

Overall

7.9

Comfort

7.9

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
1,428 reviews
Delta
7.9
Good
8,009 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.1

Overall

7.9

Comfort

7.9

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
9,093 reviews
Delta
7.9
Good
8,009 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.1

Overall

7.9

Comfort

7.9

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
11,054 reviews
Delta
7.9
Good
8,009 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.1

Overall

7.9

Comfort

7.9

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
7,585 reviews
Delta
7.9
Good
8,009 reviews

Entertainment

7.9

Food

7.3

Crew

8.5

Boarding

8.1

Overall

7.9

Comfort

7.9

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 KLM fly from Atlanta to Portugal in about 11h 02m. The time it takes to get you to your destination can typically vary by up to 24h 58m. 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?

    $325 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on Air Canada and British Airways, with prices starting from $325 and $362, 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 $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

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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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$484Average$613FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$527Average$803FlexibilityNo cancel feeOn-time76%
KLMCheapest$529Average$901FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$561Average$942FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$573Average$1,061FlexibilityNo cancel feeOn-time69%
Virgin AtlanticCheapest$584Average$1,093FlexibilityNo cancel feeOn-time72%
DeltaCheapest$613Average$1,013FlexibilityNo cancel feeOn-timeN/A
Turkish AirlinesCheapest$644Average$701FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$663Average$1,153FlexibilityNo cancel feeOn-time71%
Air FranceCheapest$669Average$1,132FlexibilityNo cancel feeOn-time77%

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