ATL - OPO

$333 Find Cheap Flights from Atlanta to Porto - Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$708
Typical prices: $773-$1,197
Lufthansa
Thu 4/19Mon 4/30
ATL - OPO • 1 stop
Cheapest one-way
$333
Typical prices: $415-$608
Delta
Thu 2/8
ATL - OPO • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Atlanta and Porto. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
16 weeks
in advance
Our data shows that travelers who book at least 16 weeks in advance save around 50% compared to booking last minute.
Insights
Insights
When to travel
February
Cheapest • 47% price drop
May
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Istanbul (IST)
Cheapest • Avg $861 (round-trip)
Madrid Barajas (MAD)
Shortest trip • 11h 45m (one-way)
Insights
Insights
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Flight Deals

Cheap Flights from Atlanta to Porto (ATL-OPO)

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Atlanta to Porto

Mon, Apr 19 - Fri, Apr 30
Multiple Airlines Logo
4:00 pm - 3:40 pmATL  Atlanta Hartsfield-Jackson-OPO Porto
18h 40m1 stop Frankfurt am Main
Multiple Airlines Logo
6:00 am - 9:14 pmOPO  Porto-ATL Atlanta Hartsfield-Jackson
20h 14m2 stops Frankfurt am Main Montreal Pierre Elliott Trudeau Intl
$708Multiple Airlines
Mon, Apr 19 - Fri, Apr 30
Multiple Airlines Logo
12:55 pm - 11:10 amATL  Atlanta Hartsfield-Jackson-OPO Porto
17h 15m2 stops Montreal Pierre Elliott Trudeau Intl Frankfurt am Main
Multiple Airlines Logo
6:00 am - 9:14 pmOPO  Porto-ATL Atlanta Hartsfield-Jackson
20h 14m2 stops Frankfurt am Main Montreal Pierre Elliott Trudeau Intl
$711Multiple Airlines
Sun, Feb 28 - Fri, Mar 12
Delta Logo
3:50 pm - 10:35 amATL  Atlanta Hartsfield-Jackson-OPO Porto
13h 45m1 stop Paris Charles de Gaulle
Delta Logo
5:00 am - 8:40 pmOPO  Porto-ATL Atlanta Hartsfield-Jackson
20h 40m1 stop Amsterdam Schiphol
$712Delta
Wed, Mar 3 - Thu, Mar 11
Delta Logo
5:40 pm - 10:35 amATL  Atlanta Hartsfield-Jackson-OPO Porto
11h 55m1 stop Paris Charles de Gaulle
Delta Logo
11:15 am - 5:08 pmOPO  Porto-ATL Atlanta Hartsfield-Jackson
34h 53m1 stop Amsterdam Schiphol
$712Delta
Mon, Mar 1 - Fri, Mar 12
KLM Logo
5:40 pm - 10:35 amATL  Atlanta Hartsfield-Jackson-OPO Porto
11h 55m1 stop Paris Charles de Gaulle
KLM Logo
9:05 am - 8:40 pmOPO  Porto-ATL Atlanta Hartsfield-Jackson
16h 35m1 stop Amsterdam Schiphol
$712KLM
Sun, Feb 28 - Wed, Mar 10
United Airlines Logo
9:01 am - 9:30 amATL  Atlanta Hartsfield-Jackson-OPO Porto
19h 29m2 stops Chicago O'Hare Intl Newark
United Airlines Logo
6:00 am - 6:32 pmOPO  Porto-ATL Atlanta Hartsfield-Jackson
17h 32m2 stops Frankfurt am Main Newark
$725United Airlines
Tue, Mar 2 - Wed, Mar 10
United Airlines Logo
1:20 pm - 9:30 amATL  Atlanta Hartsfield-Jackson-OPO Porto
15h 10m2 stops Chicago O'Hare Intl Newark
United Airlines Logo
6:00 am - 6:32 pmOPO  Porto-ATL Atlanta Hartsfield-Jackson
17h 32m2 stops Frankfurt am Main Newark
$725United Airlines
Sun, Feb 7 - Sat, Feb 13
KLM Logo
5:40 pm - 10:35 amATL  Atlanta Hartsfield-Jackson-OPO Porto
11h 55m1 stop Paris Charles de Gaulle
KLM Logo
5:00 am - 5:18 pmOPO  Porto-ATL Atlanta Hartsfield-Jackson
17h 18m1 stop Amsterdam Schiphol
$762KLM
Mon, Apr 19 - Fri, Apr 30
Turkish Airlines Logo
9:50 pm - 9:45 amATL  Atlanta Hartsfield-Jackson-OPO Porto
30h 55m1 stop Istanbul
Turkish Airlines Logo
4:35 pm - 7:45 pmOPO  Porto-ATL Atlanta Hartsfield-Jackson
32h 10m1 stop Istanbul
$797Turkish Airlines
Tue, May 4 - Tue, May 11
Turkish Airlines Logo
9:50 pm - 3:35 pmATL  Atlanta Hartsfield-Jackson-OPO Porto
36h 45m1 stop Istanbul
Turkish Airlines Logo
4:35 pm - 7:45 pmOPO  Porto-ATL Atlanta Hartsfield-Jackson
32h 10m1 stop Istanbul
$823Turkish Airlines
Booking Insights

Price, demand and travel trends for Atlanta to Porto flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

What's the cheapest day of the week to fly from Atlanta to Porto?

Based on deals KAYAK users found in the last 12 months, Monday is the cheapest day of the week to fly from Atlanta to Porto. It’s 10% cheaper than the average day, while Friday is the most expensive, with prices 30% higher.

What’s the cheapest month to fly from Atlanta to Porto?

•February is the cheapest month to fly from Atlanta to Porto at $501 round-trip.
•June ($1,335) and August ($1,034) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 166% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Atlanta to Porto the cheapest?

Flights from Atlanta to Porto are cheapest 16 weeks before departure. Booking in this window typically costs about 50% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Key details for Atlanta to Porto flights

Low season

January

Cheapest flight

$333
Beat the crowds with an average 78% drop in travelers.
The most popular month to fly with an average 78% increase in travelers.
One-way flight from Atlanta to Porto

When to book flights from Atlanta to Porto

Are your dates flexible? Find out the best times to travel from Atlanta to Porto based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price

Your Atlanta to Porto flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • What cabin classes can I book on flights from Atlanta to Porto?

    Four cabin classes are available on flights from Atlanta to Porto:

    • Economy Class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

  • How long is a flight from Atlanta to Porto?

    A nonstop flight from Atlanta to Porto takes 00m, covering 4,053 miles.

  • Do I need a passport to fly from Atlanta to Porto?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Atlanta to Porto flight?

    Round-trip flights from Atlanta to Porto range from $773 to $1,197, with an average of $946 over the past 12 months. Anything below $773 counts as a good deal.

  • How expensive are last-minute Atlanta to Porto flights?

    Last-minute fares on this route (booked within two weeks of departure) run 51% above the $946 route average. Book 16 weeks before departure for the lowest fares.

  • How are flight prices from Atlanta to Porto looking right now?

    One-way fares from Atlanta to Porto are currently lower than usual. Average one-way flight prices are about $376, which is 30% below the typical average for this route.

  • What car rental options are available at Porto Airport (OPO)?

    Porto Airport (OPO) hosts 5 major car rental companies, with daily rates averaging $23 for economy cars. Top options include:

    • GREEN MOTION
    • Drive on Holiday
    • Klass Wagen
    • Goldcar Rental SP
    • Sixt

  • Which airports can I use when flying from Atlanta to Porto?

    Flights from Atlanta to Porto usually depart from Atlanta Hartsfield-Jackson (ATL) and arrive at Porto (OPO).

  • Which airports do connecting flights from Atlanta to Porto pass through?

    One-stop flights from Atlanta to Porto most commonly connect through:

    • Amsterdam Schiphol (AMS) - 31% of one-stop connections
    • Paris Charles de Gaulle (CDG) - 19% of one-stop connections
    • New York John F Kennedy Intl (JFK) - 16% of one-stop connections
    • Newark (EWR) - 16% of one-stop connections

  • Can I save money by using flexible dates for flights from Atlanta to Porto?

    Yes. Flexible dates can save you up to 31% on flights from Atlanta to Porto. Monday is the cheapest departure day at $852 round-trip on average, while Friday is the most expensive at $1,231, a difference of $379.

    KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different layover airport from Atlanta to Porto?

    Flying via Madrid Barajas (MAD) gives the shortest average 1-stop total travel time at 11h 45m, compared with 12h 13m via New York John F Kennedy Intl (JFK) and 12h 34m via Newark (EWR).

  • What is the time difference between Atlanta and Porto?

    Porto is 5 hours ahead of Atlanta (Western European Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Porto?

    Some of the most popular sights in Porto are Ribeira Square, Avenida dos Aliados and Mercado do Bolhão. These are among the most viewed places in Porto on KAYAK.

Your guide to booking Atlanta to Porto flights

Get tips on when to book, when to fly and what to know before your trip.
  • If your dates are flexible, aim for a Monday departure and avoid flying on Friday. On this route, Monday flights average $852, about $379 less than Friday fares (31% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 16 weeks before you fly. On this route, that window historically saves about 50% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Atlanta to Porto trip for February. Fares historically average $501 round-trip in that month - typically $834 less than the most expensive month, which is June (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Porto Airport.

    • Ap Aeroporto Porto

More options for your flight from Atlanta to Porto

Complete your trip to Porto with a hotel stay or car rental

Car rentals in Porto
Hotels in Porto
Vacations in Porto