Trip.com
>
Flights
>
Flights to United States
>
Flights to Georgia
>
Flights to Atlanta
Hotels in Atlanta
>
Flights from Porto to Atlanta

Find flight deals from Porto to Atlanta for the next 3 months. Book one way flights from $606 or round trip flights from $820.

      • OPO 5:00 AM
        13h 55m
        1 stop
        ATL 1:55 PM
        Porto - Atlanta | Tue, Aug 25 | KLM
        ATL 5:00 PM
        12h 30m
        1 stop
        OPO 10:30 AM
        Atlanta - Porto | Tue, Sep 1 | Delta Air Lines
        $820 $1,204
        32% off
        32% off
        $1,204 $820
      • OPO 9:25 AM
        13h
        1 stop
        ATL 5:25 PM
        Porto - Atlanta | Tue, Aug 25 | Air France
        ATL 5:00 PM
        12h 30m
        1 stop
        OPO 10:30 AM
        Atlanta - Porto | Tue, Sep 1 | Delta Air Lines
        $828 $1,204
        31% off
        31% off
        $1,204 $828
      • OPO 12:15 PM
        33h 4m
        1 stop
        ATL 4:19 PM
        Porto - Atlanta | Tue, Aug 25 | Air Canada
        ATL 12:55 PM
        13h 5m
        1 stop
        OPO 7:00 AM
        Atlanta - Porto | Tue, Sep 1 | Air Canada
        $888 $1,204
        26% off
        26% off
        $1,204 $888
      • OPO 4:35 PM
        26h 10m
        1 stop
        ATL 1:45 PM
        Porto - Atlanta | Tue, Aug 25 | Lufthansa
        ATL 12:55 PM
        13h 5m
        1 stop
        OPO 7:00 AM
        Atlanta - Porto | Tue, Sep 1 | Air Canada
        $901
        25% off
        $1,204 $901
      • OPO 12:05 PM
        30h 40m
        1 stop
        ATL 1:45 PM
        Porto - Atlanta | Tue, Aug 25 | United Airlines
        ATL 12:55 PM
        13h 5m
        1 stop
        OPO 7:00 AM
        Atlanta - Porto | Tue, Sep 1 | Air Canada
        $901
        25% off
        $1,204 $901
      • OPO 9:00 AM
        12h 48m
        1 stop
        ATL 4:48 PM
        Porto - Atlanta | Mon, Aug 31 | United Airlines
        ATL 7:15 AM
        18h 40m
        1 stop
        OPO 6:55 AM
        Atlanta - Porto | Thu, Sep 3 | United Airlines
        $1,019
        15% off
        $1,204 $1,019
      • OPO 4:35 PM
        26h 10m
        1 stop
        ATL 1:45 PM
        Porto - Atlanta | Mon, Aug 24 | Lufthansa
        ATL 12:55 PM
        13h 5m
        1 stop
        OPO 7:00 AM
        Atlanta - Porto | Fri, Aug 28 | Air Canada
        $1,037
        14% off
        $1,204 $1,037
      • OPO 12:10 PM
        30h 35m
        1 stop
        ATL 1:45 PM
        Porto - Atlanta | Mon, Aug 24 | United Airlines
        ATL 12:55 PM
        13h 5m
        1 stop
        OPO 7:00 AM
        Atlanta - Porto | Fri, Aug 28 | Air Canada
        $1,040
        14% off
        $1,204 $1,040
      • OPO 11:50 AM
        33h 29m
        1 stop
        ATL 4:19 PM
        Porto - Atlanta | Thu, Aug 20 | Air Canada
        ATL 3:55 PM
        18h 45m
        1 stop
        OPO 3:40 PM
        Atlanta - Porto | Thu, Aug 27 | Lufthansa
        $1,127
        6% off
        $1,204 $1,127
      • OPO 9:25 PM
        28h 15m
        1 stop
        ATL 8:40 PM
        Porto - Atlanta | Mon, Aug 24 | British Airways
        ATL 10:35 PM
        15h 30m
        1 stop
        OPO 7:05 PM
        Atlanta - Porto | Fri, Aug 28 | British Airways
        $1,131
        6% off
        $1,204 $1,131
      • OPO 1:00 PM
        17h 25m
        1 stop
        ATL 2:00 PM
        Porto - Atlanta | Sat, Jul 18 | Normal Airline
        ATL 3:00 PM
        6h
        Nonstop
        OPO 4:00 PM
        Atlanta - Porto | Mon, Jul 20 | Normal Airline
        Find more flights
        Find more flights
      • OPO 1:30 PM
        12h 50m
        1 stop
        ATL 9:20 PM
        Porto - Atlanta | Fri, Jul 17 | Air Transat
        $606 $789
        23% off
        23% off
        $789 $606
      • OPO 8:25 AM
        12h 54m
        1 stop
        ATL 4:19 PM
        Porto - Atlanta | Tue, Aug 25 | Air Transat
        $614 $789
        22% off
        22% off
        $789 $614
      • OPO 9:25 PM
        28h 15m
        1 stop
        ATL 8:40 PM
        Porto - Atlanta | Fri, Sep 11 | British Airways
        $651 $789
        17% off
        17% off
        $789 $651
      • OPO 7:55 PM
        29h 45m
        1 stop
        ATL 8:40 PM
        Porto - Atlanta | Thu, Sep 10 | British Airways
        $651
        17% off
        $789 $651
      • OPO 1:30 PM
        29h 34m
        1 stop
        ATL 2:04 PM
        Porto - Atlanta | Tue, Jul 21 | Air Transat
        $690
        13% off
        $789 $690
      • OPO 8:25 AM
        18h 29m
        1 stop
        ATL 9:54 PM
        Porto - Atlanta | Wed, Aug 19 | Air Transat
        $692
        12% off
        $789 $692
      • OPO 6:05 PM
        19h 39m
        1 stop
        ATL 8:44 AM
        Porto - Atlanta | Sun, Jul 19 | TAP Air Portugal
        $704
        11% off
        $789 $704
      • OPO 6:05 PM
        19h 39m
        1 stop
        ATL 8:44 AM
        Porto - Atlanta | Mon, Jul 20 | TAP Air Portugal
        $723
        8% off
        $789 $723
      • OPO 8:25 AM
        18h 29m
        1 stop
        ATL 9:54 PM
        Porto - Atlanta | Tue, Aug 18 | Air Transat
        $726
        8% off
        $789 $726
      • OPO 5:50 PM
        33h 22m
        1 stop
        ATL 10:12 PM
        Porto - Atlanta | Mon, Sep 7 | TAP Air Portugal
        $741
        6% off
        $789 $741
      • OPO 1:00 PM
        17h 25m
        1 stop
        ATL 2:00 PM
        Porto - Atlanta | Sat, Jul 18 | Normal Airline
        Find more flights
        Find more flights

Find cheap airlines flights from Porto to Atlanta

You can choose from 1 airlines that fly from Porto to Atlanta, including United Airlines, Air Transat has lowest fares on this route.
United Airlines logo United Airlines
Airlines are determined based on actual purchased flight tickets from Porto to Atlanta according to previous 12 months data from Trip.com.

Flight Info | Porto to Atlanta

The distance between Porto and Atlanta is approximately 6,528.88 km. Based on Trip.com's data travel demand peaks in July. The off-season for travel is November.

Cheapest one-way flight price$606
Cheapest round-trip ticket price$820
Off-season for travelNovember
Peak season for travelJuly
Flight distance6,528.88 km
Popular airlineUnited Airlines
Flight statistics for the Porto–Atlanta route are based on aggregated booking data from Trip.com over the past 12 months.

Frequently Asked Questions

  • What are the cheapest flights from Porto to Atlanta (OPO-ATL)?

    Based on Trip.com data, Air Transat offers one-way fares as low as $606 on Cheapest nonstop routes (e.g. OPO to ATL on Fri, Jul 17), while KLM offers Cheapest nonstop round-trips from $820 departing on Tue, Aug 25 and returning on Tue, Sep 1.
  • At the moment, several airlines serve connecting flights from Porto to Atlanta, including: United Airlines Selected airlines are based on historical data collected from flight bookings made by users on Trip.com within the last 90 days.
  • By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Porto to Atlanta is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.
  • To find best deals on flights from Porto to Atlanta, you can use various tools on Trip.com:
    · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Fri, Jul 17, with one-way flights priced at just $606.
    · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Air Transat.
    · Set up price alerts to easily monitor ticket prices without having to check every day.
    · Check Trip.com flight deals and promo codes frequently.
    · Avoid peak season unless you book very early. It seems the peak season for Atlanta travel is around July.
    · Get exclusive promo codes for Trip.com app users.
  • The cheapest months to fly from Porto to Atlanta is November, when demand for travel is lower.
  • After crunching the numbers on our July flight calendar, it's currently cheapest to fly from Porto to Atlanta on July 17, 2026 with Air Transat, with prices starting at $606.
  • You can land at any one of the following hubs in Atlanta, with Francisco Sa Carneiro International Airport to Hartsfield–Jackson Atlanta International Airport (OPO-ATL) is by far the most common option on this route: Hartsfield–Jackson Atlanta International Airport (ATL) DeKalb-Peachtree Airport (PDK).
  • The time difference between Atlanta and Porto is 5h.
  • Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.

Explore More Popular Flights

Note: Prices shown on this page are estimated lowest price and include all taxes and fees found in the last 24 hours.

Book with no extra fees

Prices displayed in this page are all-inclusive prices (incl. taxes, fuel surcharge, civil aviation development fund, etc) with all fees confirmed before payment. Fees for luggage, meals, WLAN, or other additional services are also included as shown in the flight cards.

Real-time pricing updates

Prices, availability, and travel information on this page were updated within last 24 hours—even in real-time. The more popular the route, the more precise the data.

Change & Cancellation Policy

Trip.com displays flight cancellation and change policies for each flight ticket during the booking process, including fees and applicable conditions. Please check the following scenarios:
Voluntary cancellation/change:
To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy.
Cancellation/change due to a flight schedule change:
If the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.