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Cheap flights from Porto to Atlanta from $355

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Porto to Atlanta departing on 10/19. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Porto to Atlanta

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:00 am - 8:00 pm
OPO
-
ATL
18h 00m
2 stops
Multiple Airlines Logo
11:26 am - 10:00 am
ATL
-
OPO
17h 34m
2 stops
$621Multiple Airlines
Mon, Aug 24 - Mon, Sep 7
Scandinavian Airlines Logo
5:55 pm - 5:05 pm
OPO
-
ATL
28h 10m
1 stop
Scandinavian Airlines Logo
7:30 pm - 10:55 am
ATL
-
OPO
34h 25m
2 stops
$805Scandinavian Airlines
Fri, Sep 18 - Fri, Sep 25
Multiple Airlines Logo
8:20 am - 7:15 pm
OPO
-
ATL
15h 55m
2 stops
Multiple Airlines Logo
9:27 am - 7:40 am
ATL
-
OPO
17h 13m
2 stops
$841Multiple Airlines
Mon, Aug 31 - Mon, Sep 14
Iberia Logo
8:20 am - 7:32 pm
OPO
-
ATL
16h 12m
2 stops
Iberia Logo
5:05 pm - 4:00 pm
ATL
-
OPO
17h 55m
2 stops
$842Iberia
Wed, Sep 16 - Tue, Sep 22
Iberia Logo
12:25 pm - 11:55 pm
OPO
-
ATL
16h 30m
2 stops
Iberia Logo
2:11 pm - 11:45 am
ATL
-
OPO
16h 34m
2 stops
$846Iberia
Mon, Aug 31 - Mon, Sep 14
Iberia Logo
12:25 pm - 11:55 pm
OPO
-
ATL
16h 30m
2 stops
Iberia Logo
9:00 am - 11:45 am
ATL
-
OPO
21h 45m
2 stops
$850Iberia
Tue, Sep 1 - Tue, Sep 8
Multiple Airlines Logo
8:20 am - 10:07 pm
OPO
-
ATL
18h 47m
2 stops
Multiple Airlines Logo
10:35 pm - 8:05 pm
ATL
-
OPO
16h 30m
1 stop
$869Multiple Airlines
Mon, Aug 31 - Mon, Sep 14
Multiple Airlines Logo
6:00 am - 9:29 pm
OPO
-
ATL
44h 29m
2 stops
Multiple Airlines Logo
3:55 pm - 3:45 pm
ATL
-
OPO
18h 50m
1 stop
$870Multiple Airlines
Tue, Sep 29 - Tue, Oct 6
Multiple Airlines Logo
12:25 pm - 11:55 pm
OPO
-
ATL
16h 30m
2 stops
Multiple Airlines Logo
10:35 pm - 8:05 pm
ATL
-
OPO
16h 30m
1 stop
$874Multiple Airlines
Mon, Aug 31 - Mon, Sep 14
Lufthansa Logo
4:35 pm - 1:45 pm
OPO
-
ATL
26h 10m
1 stop
Lufthansa Logo
3:55 pm - 11:15 am
ATL
-
OPO
14h 20m
1 stop
$882Lufthansa
Mon, Aug 24 - Mon, Sep 7

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United Airlines flights from Porto to Atlanta

Our best United Airlines deals on Porto to Atlanta flight tickets
United Airlines
Sep 3
OPO6:00 amPorto
18h 29m
2 stops
ATL7:29 pmAtlanta Hartsfield-Jackson
Sep 6
ATL9:50 amAtlanta Hartsfield-Jackson
16h 05m
2 stops
OPO6:55 amPorto
$886
United Airlines
Sep 3
OPO6:00 amPorto
18h 29m
2 stops
ATL7:29 pmAtlanta Hartsfield-Jackson
Sep 6
ATL6:20 pmAtlanta Hartsfield-Jackson
10h 25m
1 stop
OPO9:45 amPorto
$887
United Airlines
Sep 24
OPO6:00 amPorto
18h 56m
2 stops
ATL7:56 pmAtlanta Hartsfield-Jackson
Sep 27
ATL6:30 amAtlanta Hartsfield-Jackson
22h 15m
1 stop
OPO9:45 amPorto
$888

Delta flights from Porto to Atlanta

Our best Delta deals on Porto to Atlanta flight tickets
Delta
Aug 24
OPO11:25 amPorto
30h 05m
1 stop
ATL12:30 pmAtlanta Hartsfield-Jackson
Sep 7
ATL3:55 pmAtlanta Hartsfield-Jackson
18h 30m
1 stop
OPO3:25 pmPorto
$909
Delta
Aug 13
OPO5:00 amPorto
13h 55m
1 stop
ATL1:55 pmAtlanta Hartsfield-Jackson
Aug 17
ATL10:10 pmAtlanta Hartsfield-Jackson
19h 20m
1 stop
OPO10:30 pmPorto
$1,253
Delta
Aug 13
OPO5:00 amPorto
18h 33m
2 stops
ATL6:33 pmAtlanta Hartsfield-Jackson
Aug 17
ATL4:52 pmAtlanta Hartsfield-Jackson
17h 33m
2 stops
OPO3:25 pmPorto
$1,258

momondo Fare Finder

 
Customize your flight search to find flights from Porto to Atlanta 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 July 22, 2026.
Use the filters below to find and compare flights from Porto to Atlanta that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortoAtlanta

OPO - ATL

OPOATL

Porto

Mon 8/24

7:00 am-8:00 pm

2 stops18h 00m

Atlanta Hartsfield-Jackson

Mon 9/7

11:26 am-10:00 am

2 stops17h 34m

$621

PortoAtlanta

OPO - ATL

OPOATL

Porto

Fri 9/18

5:55 pm-5:05 pm

1 stop28h 10m

Atlanta Hartsfield-Jackson

Fri 9/25

7:30 pm-10:55 am

2 stops34h 25m

$805

PortoAtlanta

OPO - ATL

OPOATL

Porto

Mon 8/31

8:20 am-7:15 pm

2 stops15h 55m

Atlanta Hartsfield-Jackson

Mon 9/14

9:27 am-7:40 am

2 stops17h 13m

$841

PortoAtlanta

OPO - ATL

OPOATL

Porto

Wed 9/16

8:20 am-7:32 pm

2 stops16h 12m

Atlanta Hartsfield-Jackson

Tue 9/22

5:05 pm-4:00 pm

2 stops17h 55m

$842

PortoAtlanta

OPO - ATL

OPOATL

Porto

Mon 8/31

12:25 pm-11:55 pm

2 stops16h 30m

Atlanta Hartsfield-Jackson

Mon 9/14

2:11 pm-11:45 am

2 stops16h 34m

$846

PortoAtlanta

OPO - ATL

OPOATL

Porto

Tue 9/1

12:25 pm-11:55 pm

2 stops16h 30m

Atlanta Hartsfield-Jackson

Tue 9/8

9:00 am-11:45 am

2 stops21h 45m

$850

PortoAtlanta

OPO - ATL

OPOATL

Porto

Mon 8/31

8:20 am-10:07 pm

2 stops18h 47m

Atlanta Hartsfield-Jackson

Mon 9/14

10:35 pm-8:05 pm

1 stop16h 30m

$869

PortoAtlanta

OPO - ATL

OPOATL

Porto

Tue 9/29

6:00 am-9:29 pm

2 stops44h 29m

Atlanta Hartsfield-Jackson

Tue 10/6

3:55 pm-3:45 pm

1 stop18h 50m

$870
Quickest round-trip

PortoAtlanta

OPO - ATL

OPOATL

Porto

Mon 8/31

12:25 pm-11:55 pm

2 stops16h 30m

Atlanta Hartsfield-Jackson

Mon 9/14

10:35 pm-8:05 pm

1 stop16h 30m

$874

PortoAtlanta

OPO - ATL

OPOATL

Porto

Mon 8/24

4:35 pm-1:45 pm

1 stop26h 10m

Atlanta Hartsfield-Jackson

Mon 9/7

3:55 pm-11:15 am

1 stop14h 20m

$882

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 Atlanta from

How to get the cheapest flight ticket from Porto to Atlanta

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 Atlanta?

The month of January is, on average, the cheapest month to fly to Atlanta from Porto, with most prices found around $0. If you aren’t able to travel to Atlanta during the month of January, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $867.

Can stopping save me money on Porto to Atlanta flights?

You could potentially save up to 12% on your flight if you consider stops on a Porto to Atlanta flight.

When to book flights from Porto to Atlanta

Are you open to changing your travel dates? Check out the ideal times to fly from Porto to Atlanta according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Porto to Atlanta (OPO to ATL) flight deals and tips

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

Fastest flight time

13h 55m

Direct flights

None
The fastest flight from Porto to Atlanta takes 13h 55m
There are no direct flights from Porto to Atlanta. There are no popular flight routes from Porto to Atlanta.
Search flight deals

Frequently asked questions about flying from Porto to Atlanta

  • How far is Porto to Atlanta Hartsfield-Jackson by plane?

    The straight-line distance from Porto to Atlanta Hartsfield-Jackson is 4052.2 mi. In terms of flight time, this usually takes a little over 13h 55m.

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

    Prices for flights from Porto Airport to Atlanta Hartsfield-Jackson Airport were last updated today.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Porto Airport to Atlanta Hartsfield-Jackson Airport.

  • What documentation or ID do you need to fly to Atlanta Hartsfield-Jackson Airport?

    The required travel and health documents for your Atlanta Hartsfield-Jackson Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Atlanta Hartsfield-Jackson Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Porto to Atlanta?

Best airlines flying from Porto to Atlanta

Compare and see reviews for airlines that fly from Porto to Atlanta with momondo
Airline
Rating
Free Cancellation
Price
KLMPriceFrom $871Free CancellationRating
7.8
1,544 reviews
Search KLM flights

Traveling to a place near Atlanta?

Book flights to Atlanta if you plan to visit one of these locations
Helen
Marietta
Duluth
McDonough
Warner Robins
Blue Ridge
Stone Mountain
Cartersville
Lawrenceville
Norcross
Douglasville
Kennesaw
College Park
La Grange
Gainesville
Conyers
Covington
Newnan
Dahlonega
Auburn

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Porto to Atlanta. Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo enables you to select and highlight flights to Atlanta from Porto with this policy.

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

momondo helps you find the best flight between Porto and Atlanta 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 Porto to Atlanta right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Atlanta from Porto. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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