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Cheap flights from Atlanta to Portugal from $180

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 3/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
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.
British Airways Logo
10:10 pm - 5:45 pm
ATL
-
OPO
14h 35m
1 stop
British Airways Logo
8:20 am - 10:01 pm
OPO
-
ATL
17h 41m
2 stops
$448British Airways
Tue, Mar 3 - Thu, Mar 12
United Airlines Logo
4:35 pm - 9:30 am
ATL
-
OPO
11h 55m
1 stop
United Airlines Logo
12:35 pm - 10:40 am
OPO
-
ATL
26h 05m
2 stops
$450United Airlines
Wed, Feb 25 - Wed, Mar 11
British Airways Logo
7:18 pm - 5:45 pm
ATL
-
OPO
17h 27m
2 stops
British Airways Logo
8:20 am - 10:01 pm
OPO
-
ATL
17h 41m
2 stops
$453British Airways
Tue, Mar 3 - Thu, Mar 12
SWISS Logo
2:39 pm - 9:30 am
ATL
-
OPO
13h 51m
1 stop
SWISS Logo
12:35 pm - 9:02 am
OPO
-
ATL
24h 27m
1 stop
$455SWISS
Wed, Feb 25 - Wed, Mar 11
Lufthansa Logo
4:55 pm - 11:35 am
ATL
-
LIS
13h 40m
1 stop
Lufthansa Logo
5:00 am - 2:30 pm
LIS
-
ATL
14h 30m
1 stop
$459Lufthansa
Wed, Feb 11 - Wed, Feb 18
United Airlines Logo
4:35 pm - 9:30 am
ATL
-
OPO
11h 55m
1 stop
United Airlines Logo
12:35 pm - 7:36 pm
OPO
-
ATL
35h 01m
2 stops
$461United Airlines
Tue, Mar 3 - Thu, Mar 12
KLM Logo
5:40 pm - 10:30 am
ATL
-
OPO
11h 50m
1 stop
KLM Logo
11:15 am - 1:35 pm
OPO
-
ATL
31h 20m
1 stop
$466KLM
Tue, Feb 3 - Mon, Feb 9
KLM Logo
10:35 pm - 9:35 am
ATL
-
FNC
54h 00m
2 stops
KLM Logo
10:10 am - 2:45 pm
FNC
-
ATL
33h 35m
1 stop
$553KLM
Sun, Feb 15 - Sun, Feb 22
American Airlines Logo
7:57 pm - 5:20 pm
ATL
-
FAO
40h 23m
2 stops
American Airlines Logo
2:50 pm - 8:10 pm
FAO
-
ATL
34h 20m
1 stop
$621American Airlines
Sat, Feb 28 - Sat, Mar 7
American Airlines Logo
7:57 pm - 5:20 pm
ATL
-
FAO
40h 23m
2 stops
American Airlines Logo
2:50 pm - 10:27 pm
FAO
-
ATL
36h 37m
2 stops
$625American Airlines
Sat, Feb 28 - Sat, Mar 7

United Airlines flights from Atlanta to Portugal

Our best United Airlines deals on Atlanta to Portugal flight tickets
United Airlines
Feb 25
ATL4:35 pmAtlanta Hartsfield-Jackson
11h 55m
1 stop
OPO9:30 amPorto
Mar 11
OPO12:35 pmPorto
26h 05m
2 stops
ATL10:40 amAtlanta Hartsfield-Jackson
$450
United Airlines
Jan 28
ATL11:45 amAtlanta Hartsfield-Jackson
15h 25m
2 stops
LIS8:10 amLisbon Humberto Delgado
Feb 6
LIS10:55 amLisbon Humberto Delgado
15h 48m
1 stop
ATL9:43 pmAtlanta Hartsfield-Jackson
$460
United Airlines
Mar 3
ATL4:35 pmAtlanta Hartsfield-Jackson
11h 55m
1 stop
OPO9:30 amPorto
Mar 12
OPO12:35 pmPorto
35h 01m
2 stops
ATL7:36 pmAtlanta Hartsfield-Jackson
$461

British Airways flights from Atlanta to Portugal

Our best British Airways deals on Atlanta to Portugal flight tickets
British Airways
Mar 3
ATL10:10 pmAtlanta Hartsfield-Jackson
14h 35m
1 stop
OPO5:45 pmPorto
Mar 12
OPO8:20 amPorto
17h 41m
2 stops
ATL10:01 pmAtlanta Hartsfield-Jackson
$448
British Airways
Mar 3
ATL7:18 pmAtlanta Hartsfield-Jackson
17h 27m
2 stops
OPO5:45 pmPorto
Mar 12
OPO8:20 amPorto
17h 41m
2 stops
ATL10:01 pmAtlanta Hartsfield-Jackson
$453
British Airways
Mar 18
ATL11:10 pmAtlanta Hartsfield-Jackson
18h 40m
1 stop
LIS9:50 pmLisbon Humberto Delgado
Apr 1
LIS6:45 pmLisbon Humberto Delgado
30h 50m
1 stop
ATL8:35 pmAtlanta Hartsfield-Jackson
$460

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 January 16, 2026.
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

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Tue 3/3

10:10 pm-5:45 pm

1 stop14h 35m

Porto

Thu 3/12

8:20 am-10:01 pm

2 stops17h 41m

$448

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Wed 2/25

4:35 pm-9:30 am

1 stop11h 55m

Porto

Wed 3/11

12:35 pm-10:40 am

2 stops26h 05m

$450

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Tue 3/3

7:18 pm-5:45 pm

2 stops17h 27m

Porto

Thu 3/12

8:20 am-10:01 pm

2 stops17h 41m

$453

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Wed 2/25

2:39 pm-9:30 am

1 stop13h 51m

Porto

Wed 3/11

12:35 pm-9:02 am

1 stop24h 27m

$455

AtlantaLisbon

ATL - LIS

ATLLIS

Atlanta Hartsfield-Jackson

Wed 2/11

4:55 pm-11:35 am

1 stop13h 40m

Lisbon Humberto Delgado

Wed 2/18

5:00 am-2:30 pm

1 stop14h 30m

$459

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Tue 3/3

4:35 pm-9:30 am

1 stop11h 55m

Porto

Thu 3/12

12:35 pm-7:36 pm

2 stops35h 01m

$461

AtlantaPorto

ATL - OPO

ATLOPO

Atlanta Hartsfield-Jackson

Tue 2/3

5:40 pm-10:30 am

1 stop11h 50m

Porto

Mon 2/9

11:15 am-1:35 pm

1 stop31h 20m

$466

AtlantaFunchal

ATL - FNC

ATLFNC

Atlanta Hartsfield-Jackson

Sun 2/15

10:35 pm-9:35 am

2 stops54h 00m

Funchal Madeira

Sun 2/22

10:10 am-2:45 pm

1 stop33h 35m

$553

AtlantaFaro

ATL - FAO

ATLFAO

Atlanta Hartsfield-Jackson

Sat 2/28

7:57 pm-5:20 pm

2 stops40h 23m

Faro

Sat 3/7

2:50 pm-8:10 pm

1 stop34h 20m

$621

AtlantaFaro

ATL - FAO

ATLFAO

Atlanta Hartsfield-Jackson

Sat 2/28

7:57 pm-5:20 pm

2 stops40h 23m

Faro

Sat 3/7

2:50 pm-10:27 pm

2 stops36h 37m

$625

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 January. Flight prices, which tend to average around $657, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of January, then book flights to Portugal from Atlanta during February instead. Flights to Portugal in February, while not as cheap as those in January, still average around $676.

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 $892 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 $830 on momondo.

Can stopping save me money on Atlanta to Portugal flights?

You could potentially save up to 67% 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

Fastest flight time

11h 51m

Direct flights

None
The fastest flight from Atlanta to Portugal takes 11h 51m
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
7.3
1,654 reviews
Search Scandinavian Airlines flights
KLMPriceFrom $514Free CancellationRating
7.7
1,440 reviews
Search KLM flights
LufthansaPriceFrom $521Free CancellationRating
6.8
7,719 reviews
Search Lufthansa flights
United AirlinesPriceFrom $555Free CancellationRating
7.4
9,165 reviews
Search United Airlines flights
British AirwaysPriceFrom $561Free CancellationRating
6.7
7,684 reviews
Search British Airways flights
Virgin AtlanticPriceFrom $584Free CancellationRating
7.5
678 reviews
Search Virgin Atlantic flights
DeltaPriceFrom $613Free CancellationRating
7.9
8,057 reviews
Search Delta flights
Air CanadaPriceFrom $629Free CancellationRating
7.1
10,627 reviews
Search Air Canada flights
Turkish AirlinesPriceFrom $644Free CancellationRating
7.3
4,180 reviews
Search Turkish Airlines flights
American AirlinesPriceFrom $669Free CancellationRating
7.2
11,144 reviews
Search American Airlines 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.

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Find better results for your trip to Portugal

Popular cities in Portugal

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