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Cheap flights from Atlanta to Portugal from $273

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Atlanta to Portugal departing on 12/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Atlanta to Portugal

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
2:39 pm - 11:30 pmATL-LIS
28h 51m2 stops
Lufthansa Logo
12:35 pm - 1:55 pmLIS-ATL
30h 20m1 stop
$535Lufthansa
Find Deal
Mon, Mar 23 - Mon, Mar 30
Lufthansa Logo
11:28 am - 11:35 amATL-LIS
20h 07m2 stops
Lufthansa Logo
5:05 am - 9:00 pmLIS-ATL
20h 55m2 stops
$537Lufthansa
Find Deal
Tue, Mar 24 - Tue, Mar 31
Multiple Airlines Logo
12:55 pm - 9:20 amATL-LIS
15h 25m1 stop
Multiple Airlines Logo
5:00 am - 2:30 pmLIS-ATL
14h 30m1 stop
$538Multiple Airlines
Find Deal
Tue, Dec 2 - Sun, Dec 7
United Airlines Logo
1:15 pm - 9:20 amATL-LIS
39h 05m3 stops
United Airlines Logo
5:00 am - 10:24 amLIS-ATL
58h 24m2 stops
$541United Airlines
Find Deal
Mon, Feb 2 - Mon, Feb 16
United Airlines Logo
5:55 pm - 11:35 amATL-LIS
13h 40m1 stop
United Airlines Logo
7:25 am - 1:55 pmLIS-ATL
35h 30m1 stop
$543United Airlines
Find Deal
Wed, Mar 18 - Mon, Mar 30
KLM Logo
10:45 pm - 9:35 amATL-FNC
29h 50m1 stop
KLM Logo
10:10 am - 2:45 pmFNC-ATL
33h 35m1 stop
$566KLM
Find Deal
Mon, Feb 16 - Sun, Feb 22
KLM Logo
5:40 pm - 10:30 amATL-OPO
11h 50m1 stop
KLM Logo
6:00 am - 8:45 pmOPO-ATL
19h 45m1 stop
$577KLM
Find Deal
Sun, Feb 1 - Wed, Feb 11
Delta Logo
1:45 pm - 10:30 amATL-OPO
15h 45m2 stops
Delta Logo
6:35 am - 9:45 pmOPO-ATL
19h 10m1 stop
$581Delta
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Tue, Mar 3 - Thu, Mar 12
British Airways Logo
10:10 pm - 11:30 amATL-FNC
32h 20m1 stop
British Airways Logo
4:45 pm - 9:10 pmFNC-ATL
32h 25m1 stop
$687British Airways
Find Deal
Sat, Feb 28 - Sat, Mar 21
British Airways Logo
10:10 pm - 10:30 amATL-FAO
31h 20m1 stop
British Airways Logo
5:50 pm - 8:10 pmFAO-ATL
31h 20m1 stop
$693British Airways
Find Deal
Sun, Dec 28 - Mon, Jan 12

British Airways flights from Atlanta to Portugal

Our best British Airways deals on Atlanta to Portugal flight tickets
British Airways
Mar 1
ATL10:10 pmAtlanta Hartsfield-Jackson
14h 35m
1 stop
LIS5:45 pmLisbon Humberto Delgado
Mar 21
LIS11:05 amLisbon Humberto Delgado
14h 05m
1 stop
ATL9:10 pmAtlanta Hartsfield-Jackson
$573
Find similar
British Airways
Mar 20
ATL11:10 pmAtlanta Hartsfield-Jackson
30h 45m
1 stop
LIS9:55 amLisbon Humberto Delgado
Mar 24
LIS7:05 amLisbon Humberto Delgado
18h 05m
1 stop
ATL9:10 pmAtlanta Hartsfield-Jackson
$580
Find similar
British Airways
Mar 1
ATL10:10 pmAtlanta Hartsfield-Jackson
14h 35m
1 stop
LIS5:45 pmLisbon Humberto Delgado
Mar 21
LIS7:00 amLisbon Humberto Delgado
18h 10m
1 stop
ATL9:10 pmAtlanta Hartsfield-Jackson
$590
Find similar

Delta flights from Atlanta to Portugal

Our best Delta deals on Atlanta to Portugal flight tickets
Delta
Feb 13
ATL12:34 pmAtlanta Hartsfield-Jackson
17h 46m
2 stops
LIS11:20 amLisbon Humberto Delgado
Feb 18
LIS11:25 amLisbon Humberto Delgado
14h 20m
1 stop
ATL8:45 pmAtlanta Hartsfield-Jackson
$564
Find similar
Delta
Feb 1
ATL4:20 pmAtlanta Hartsfield-Jackson
17h 15m
2 stops
LIS2:35 pmLisbon Humberto Delgado
Feb 8
LIS11:25 amLisbon Humberto Delgado
14h 20m
1 stop
ATL8:45 pmAtlanta Hartsfield-Jackson
$570
Find similar
Delta
Feb 13
ATL12:34 pmAtlanta Hartsfield-Jackson
17h 46m
2 stops
LIS11:20 amLisbon Humberto Delgado
Feb 18
LIS5:00 amLisbon Humberto Delgado
17h 40m
2 stops
ATL5:40 pmAtlanta Hartsfield-Jackson
$574
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated November 17, 2025.
Use the filters below to find and compare flights from Atlanta to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

AtlantaLisbon

ATL - LIS

ATLLIS

Atlanta Hartsfield-Jackson

Mon 3/23

2:39 pm-11:30 pm

2 stops28h 51m

Lisbon Humberto Delgado

Mon 3/30

12:35 pm-1:55 pm

1 stop30h 20m

$535

AtlantaLisbon

ATL - LIS

ATLLIS

Atlanta Hartsfield-Jackson

Tue 3/24

11:28 am-11:35 am

2 stops20h 07m

Lisbon Humberto Delgado

Tue 3/31

5:05 am-9:00 pm

2 stops20h 55m

$537

AtlantaLisbon

ATL - LIS

ATLLIS

Atlanta Hartsfield-Jackson

Tue 12/2

12:55 pm-9:20 am

1 stop15h 25m

Lisbon Humberto Delgado

Sun 12/7

5:00 am-2:30 pm

1 stop14h 30m

$538

AtlantaLisbon

ATL - LIS

ATLLIS

Atlanta Hartsfield-Jackson

Mon 2/2

1:15 pm-9:20 am

3 stops39h 05m

Lisbon Humberto Delgado

Mon 2/16

5:00 am-10:24 am

2 stops58h 24m

$541

AtlantaLisbon

ATL - LIS

ATLLIS

Atlanta Hartsfield-Jackson

Wed 3/18

5:55 pm-11:35 am

1 stop13h 40m

Lisbon Humberto Delgado

Mon 3/30

7:25 am-1:55 pm

1 stop35h 30m

$543

AtlantaFunchal

ATL - FNC

ATLFNC

Atlanta Hartsfield-Jackson

Mon 2/16

10:45 pm-9:35 am

1 stop29h 50m

Funchal Madeira

Sun 2/22

10:10 am-2:45 pm

1 stop33h 35m

$566

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Sun 2/1

5:40 pm-10:30 am

1 stop11h 50m

Porto

Wed 2/11

6:00 am-8:45 pm

1 stop19h 45m

$577

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Tue 3/3

1:45 pm-10:30 am

2 stops15h 45m

Porto

Thu 3/12

6:35 am-9:45 pm

1 stop19h 10m

$581

AtlantaFunchal

ATL - FNC

ATLFNC

Atlanta Hartsfield-Jackson

Sat 2/28

10:10 pm-11:30 am

1 stop32h 20m

Funchal Madeira

Sat 3/21

4:45 pm-9:10 pm

1 stop32h 25m

$687

AtlantaFaro

ATL - FAO

ATLFAO

Atlanta Hartsfield-Jackson

Sun 12/28

10:10 pm-10:30 am

1 stop31h 20m

Faro

Mon 1/12

5:50 pm-8:10 pm

1 stop31h 20m

$693

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Portugal from

How to get the cheapest flight ticket from Atlanta to Portugal

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Portugal?

The cheapest month to fly to Portugal from Atlanta is in February. Flight prices, which tend to average around $687, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of February, then book flights to Portugal from Atlanta during January instead. Flights to Portugal in January, while not as cheap as those in February, still average around $688.

What is the cheapest day to depart on your flight to Portugal?

According to our data, Sunday is the cheapest day to fly to Portugal from Atlanta. The lowest ticket price found for a Sunday departure recently was $924. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Portugal is Thursday, with ticket prices averaging around $1,062.

What is the cheapest time of day to depart on your flight to Portugal?

Our most recent data shows that the best time of day to fly to Portugal is at noon. Flights from Atlanta to Portugal during this time can be as low as $955. In the afternoon is when there is more demand to fly to Portugal, so prices are often more expensive at around $1,022 per ticket.

How far in advance should I book a flight to Portugal?

You are more likely to see cheaper flights to Portugal from Atlanta when booking weeks ahead of your departure date. In general, you can expect to find flights to Portugal for around $908 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Portugal from Atlanta for as low as $836 on momondo.

Can stopping save me money on Atlanta to Portugal flights?

You could potentially save up to 30% on your flight if you consider stops on a Atlanta to Portugal flight.

Cheap Atlanta to Portugal flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Atlanta to Portugal

Direct flights

None
There are no direct flights from Atlanta to Portugal. There are no popular flight routes from Atlanta to Portugal.
Search flight deals

  • When did momondo last update prices for flights from Atlanta Hartsfield-Jackson Airport to Portugal?

    Prices for flights from Atlanta Hartsfield-Jackson Airport to Portugal are updated daily.

  • How many operators does momondo search for flights from Atlanta Hartsfield-Jackson Airport to Portugal?

  • How old do you have to be to fly from Atlanta Hartsfield-Jackson Airport to Portugal?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Atlanta Hartsfield-Jackson Airport to Portugal.

  • What documentation or ID do you need to fly to Portugal?

    The travel and health documents required for your trip to Portugal can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Portugal. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Atlanta to Portugal

Compare and see reviews for airlines that fly from Atlanta to Portugal with momondo
Airline
Rating
Free Cancellation
Price
Scandinavian AirlinesPriceFrom $484Free CancellationRating
7.4
1,580 reviews
Search Scandinavian Airlines flights
KLMPriceFrom $532Free CancellationRating
7.7
1,411 reviews
Search KLM flights
LufthansaPriceFrom $565Free CancellationRating
6.8
7,576 reviews
Search Lufthansa flights
American AirlinesPriceFrom $569Free CancellationRating
7.2
11,046 reviews
Search American Airlines flights
British AirwaysPriceFrom $569Free CancellationRating
6.7
7,529 reviews
Search British Airways flights
Virgin AtlanticPriceFrom $579Free CancellationRating
7.5
673 reviews
Search Virgin Atlantic flights
United AirlinesPriceFrom $592Free CancellationRating
7.4
9,014 reviews
Search United Airlines flights
DeltaPriceFrom $611Free CancellationRating
7.9
8,006 reviews
Search Delta flights
Turkish AirlinesPriceFrom $644Free CancellationRating
7.3
4,047 reviews
Search Turkish Airlines flights
Air CanadaPriceFrom $689Free CancellationRating
7.1
10,457 reviews
Search Air Canada flights

Why use momondo?

Why should I use momondo to find a flight deal from Atlanta to Portugal?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Portugal from Atlanta.

Can I find flights from Atlanta to Portugal with flexible booking policies on momondo?

momondo does allow users to show only those flights to Portugal from Atlanta which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Atlanta to Portugal?

momondo helps you find the best flight between Atlanta and Portugal by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Atlanta to Portugal right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Atlanta to Portugal now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Portugal and let you know when they change.

An easier way to manage your Portugal trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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Find better results for your trip to Portugal

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Popular flights according to clicks in the last 7 days on momondo
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