$314+ Cheap flights from Atlanta (ATL) to Porto (OPO)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/3. Fares are subject to change and may not be available on all flights or dates of travel.
ATL — OPO
Apr 10 — Apr 171
Round-trip
1 adult, Economy
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Find cheap flights from Atlanta to Porto with Cheapflights
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Cheapest flights from Atlanta to PortoExplore the most affordable flight options available from Atlanta to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 11, 2026.
Explore the most affordable flight options available from Atlanta to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 11, 2026.
This Mytrip deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/237:25 pm
ATL
- OPO
1 stop32h 20m
Scandinavian Airlines
Fri 5/85:55 pm
OPO
- ATL
1 stop28h 30m
Scandinavian Airlines
Deal found 3/8![Scandinavian Airlines logo]()
$536
This Mytrip deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/97:25 pm
ATL
- OPO
1 stop32h 20m
Scandinavian Airlines
Sat 4/189:35 am
OPO
- ATL
1 stop36h 50m
Scandinavian Airlines
Deal found 3/9![Scandinavian Airlines logo]()
$556
This United Airlines deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/94:22 pm
ATL
- OPO
1 stop12h 08m
United Airlines
Fri 11/136:00 am
OPO
- ATL
2 stops22h 56m
United Airlines
Deal found 3/8![United Airlines logo]()
$568
This Trip.com deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/97:25 pm
ATL
- OPO
1 stop32h 20m
Scandinavian Airlines
Wed 4/2211:50 am
OPO
- ATL
1 stop34h 35m
Scandinavian Airlines
Deal found 3/7![Scandinavian Airlines logo]()
$570
This Kiwi.com deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/97:25 pm
ATL
- OPO
1 stop32h 20m
Scandinavian Airlines
Wed 4/1511:50 am
OPO
- ATL
1 stop34h 35m
Scandinavian Airlines
Deal found 3/10![Scandinavian Airlines logo]()
$621
This KAYAK deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/97:25 pm
ATL
- OPO
1 stop32h 20m
Scandinavian Airlines
Sat 4/259:35 am
OPO
- ATL
1 stop36h 50m
Scandinavian Airlines
Deal found 3/6![Scandinavian Airlines logo]()
$624
This Expedia deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/248:13 pm
ATL
- OPO
2 stops39h 47m
Iberia
Sat 11/78:40 pm
OPO
- ATL
2 stops26h 08m
Iberia
Deal found 3/10![Iberia logo]()
$636
This FlightHub deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/63:05 pm
ATL
- OPO
1 stop27h 25m
Turkish Airlines
Wed 10/284:10 pm
OPO
- ATL
1 stop32h 35m
Turkish Airlines
Deal found 3/10![Turkish Airlines logo]()
$638
This FlightHub deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/89:50 pm
ATL
- OPO
1 stop36h 55m
Turkish Airlines
Wed 4/1510:45 am
OPO
- ATL
1 stop38h 00m
Turkish Airlines
Deal found 3/7![Turkish Airlines logo]()
$639
This Expedia deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2210:58 am
ATL
- OPO
2 stops19h 47m
Iberia
Wed 4/298:20 am
OPO
- ATL
2 stops19h 03m
Iberia
Deal found 3/8![Iberia logo]()
$640
Best flights from Atlanta to PortoDiscover carefully curated flight deals from Atlanta to Porto that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 11, 2026.
Discover carefully curated flight deals from Atlanta to Porto that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 11, 2026.
This Delta deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/812:29 pm
ATL
- OPO
2 stops17h 11m
Delta
Wed 4/155:00 am
OPO
- ATL
2 stops15h 58m
Delta
Deal found 3/7![Delta logo]()
$733
This Delta deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/912:29 pm
ATL
- OPO
2 stops17h 11m
Delta
Wed 4/225:00 am
OPO
- ATL
2 stops17h 54m
Delta
Deal found 3/6![Delta logo]()
$783
This Delta deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/224:45 pm
ATL
- OPO
1 stop13h 45m
Delta
Wed 4/85:00 am
OPO
- ATL
2 stops16h 24m
Delta
Deal found 3/6![Delta logo]()
$822
This Delta deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/912:29 pm
ATL
- OPO
2 stops17h 11m
Delta
Thu 4/1611:25 am
OPO
- ATL
1 stop14h 00m
Delta
Deal found 3/10![Delta logo]()
$823
This Delta deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/59:50 pm
ATL
- OPO
1 stop19h 10m
Delta
Mon 5/46:30 am
OPO
- ATL
2 stops18h 53m
Delta
Deal found 3/9![Delta logo]()
$880
This Delta deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/115:00 pm
ATL
- OPO
1 stop20h 10m
Delta
Mon 5/185:00 am
OPO
- ATL
2 stops20h 32m
Delta
Deal found 3/10![Delta logo]()
$891
This Delta deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/97:45 pm
ATL
- OPO
1 stop17h 25m
Delta
Sun 5/245:55 am
OPO
- ATL
2 stops17h 37m
Delta
Deal found 3/8![Delta logo]()
$894
This Delta deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1612:23 pm
ATL
- OPO
2 stops17h 17m
Delta
Fri 4/245:55 am
OPO
- ATL
1 stop13h 00m
Delta
Deal found 3/6![Delta logo]()
$899
Last-minute flights from Atlanta to PortoDiscover last-minute flight deals from Atlanta to Porto. Data last updated March 11, 2026 and is based on user searches.
Discover last-minute flight deals from Atlanta to Porto. Data last updated March 11, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/2210:50 pm
ATL
- OPO
1 stop36h 20m
Turkish Airlines
Wed 4/810:45 am
OPO
- ATL
1 stop38h 00m
Turkish Airlines
Deal found 3/7![Turkish Airlines logo]()
$655
This FlightHub deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/53:05 pm
ATL
- OPO
1 stop37h 35m
Turkish Airlines
Mon 5/44:50 pm
OPO
- ATL
1 stop25h 10m
Turkish Airlines
Deal found 3/7![Turkish Airlines logo]()
$651
This FlightHub deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/89:50 pm
ATL
- OPO
1 stop36h 55m
Turkish Airlines
Wed 4/1510:45 am
OPO
- ATL
1 stop38h 00m
Turkish Airlines
Deal found 3/7![Turkish Airlines logo]()
$639
This British Airways deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/89:14 am
ATL
- OPO
2 stops17h 26m
Multiple Airlines
Wed 4/158:20 am
OPO
- ATL
2 stops16h 07m
Multiple Airlines
Deal found 3/7![Multiple Airlines logo]()
$647
This Mytrip deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/97:25 pm
ATL
- OPO
1 stop32h 20m
Scandinavian Airlines
Sat 4/189:35 am
OPO
- ATL
1 stop36h 50m
Scandinavian Airlines
Deal found 3/9![Scandinavian Airlines logo]()
$556
This Trip.com deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/97:25 pm
ATL
- OPO
1 stop32h 20m
Scandinavian Airlines
Wed 4/2211:50 am
OPO
- ATL
1 stop34h 35m
Scandinavian Airlines
Deal found 3/7![Scandinavian Airlines logo]()
$570
This Kiwi.com deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/97:25 pm
ATL
- OPO
1 stop32h 20m
Scandinavian Airlines
Wed 4/1511:50 am
OPO
- ATL
1 stop34h 35m
Scandinavian Airlines
Deal found 3/10![Scandinavian Airlines logo]()
$621
This KAYAK deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/97:25 pm
ATL
- OPO
1 stop32h 20m
Scandinavian Airlines
Sat 4/259:35 am
OPO
- ATL
1 stop36h 50m
Scandinavian Airlines
Deal found 3/6![Scandinavian Airlines logo]()
$624
This FlightHub deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/169:50 pm
ATL
- OPO
1 stop20h 40m
Turkish Airlines
Fri 4/2410:40 am
OPO
- ATL
1 stop31h 20m
Turkish Airlines
Deal found 3/6![Turkish Airlines logo]()
$641
This Expedia deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2210:58 am
ATL
- OPO
2 stops19h 47m
Iberia
Wed 4/298:20 am
OPO
- ATL
2 stops19h 03m
Iberia
Deal found 3/8![Iberia logo]()
$640
This Mytrip deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/237:25 pm
ATL
- OPO
1 stop32h 20m
Scandinavian Airlines
Fri 5/85:55 pm
OPO
- ATL
1 stop28h 30m
Scandinavian Airlines
Deal found 3/8![Scandinavian Airlines logo]()
$536
One-way flights from Atlanta to PortoSearch for one-way flight options from Atlanta to Porto. Find affordable one-way fares based on user searches. Data last updated March 11, 2026.
Search for one-way flight options from Atlanta to Porto. Find affordable one-way fares based on user searches. Data last updated March 11, 2026.
This Expedia deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/31:00 pm
ATL
- OPO
1 stop13h 00m
Air Canada
Deal found 3/8![Air Canada logo]()
$314
This Kiwi.com deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/286:00 am
ATL
- OPO
3 stops46h 25m
Multiple Airlines
Deal found 3/7![Multiple Airlines logo]()
$328
This Kiwi.com deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/276:00 am
ATL
- OPO
3 stops57h 25m
Multiple Airlines
Deal found 3/7![Multiple Airlines logo]()
$331
This Kiwi.com deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/111:16 am
ATL
- OPO
3 stops38h 29m
Multiple Airlines
Deal found 3/7![Multiple Airlines logo]()
$352
This Kiwi.com deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/26:00 am
ATL
- OPO
3 stops46h 30m
Multiple Airlines
Deal found 3/7![Multiple Airlines logo]()
$368
This Kiwi.com deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/211:16 am
ATL
- OPO
3 stops39h 24m
Multiple Airlines
Deal found 3/7![Multiple Airlines logo]()
$369
This Kiwi.com deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1510:00 am
ATL
- OPO
2 stops39h 55m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$375
This Kiwi.com deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/168:57 pm
ATL
- OPO
2 stops33h 43m
Multiple Airlines
Deal found 3/8![Multiple Airlines logo]()
$376
This Kiwi.com deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1110:05 pm
ATL
- OPO
2 stops44h 50m
Multiple Airlines
Deal found 3/8![Multiple Airlines logo]()
$385
This Mytrip deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/31:00 pm
ATL
- OPO
3 stops21h 40m
Multiple Airlines
Deal found 3/8![Multiple Airlines logo]()
$389
Find flight deals from Atlanta to Porto
Discover tips and strategies to find the most affordable flight options for your journey from Atlanta (ATL) to Porto (OPO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $536 (Mytrip) |
One-way from | $314 (Expedia) |
Popular in | June |
Cheapest in | March |
Average price | $582 |
Cheapflights Fare Finder
Customize your flight search to find flights from Atlanta to Porto 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, Cheapflights users made 2,558,603 searches. Data last updated March 11, 2026.
Use the filters below to find and compare flights from Atlanta to Porto that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
AtlantaPorto
ATL - OPO
ATLOPO
Atlanta Hartsfield-Jackson
Wed 4/8
12:29 pm-10:40 am
2 stops17h 11m
Porto
Wed 4/15
5:00 am-3:58 pm
2 stops15h 58m
$733
AtlantaPorto
ATL - OPO
ATLOPO
Atlanta Hartsfield-Jackson
Thu 4/9
12:29 pm-10:40 am
2 stops17h 11m
Porto
Wed 4/22
5:00 am-5:54 pm
2 stops17h 54m
$783
Quickest round-trip
AtlantaPorto
ATL - OPO
ATLOPO
Atlanta Hartsfield-Jackson
Sun 3/22
4:45 pm-10:30 am
1 stop13h 45m
Porto
Wed 4/8
5:00 am-4:24 pm
2 stops16h 24m
$822
AtlantaPorto
ATL - OPO
ATLOPO
Atlanta Hartsfield-Jackson
Thu 4/9
12:29 pm-10:40 am
2 stops17h 11m
Porto
Thu 4/16
11:25 am-8:25 pm
1 stop14h 00m
$823
AtlantaPorto
ATL - OPO
ATLOPO
Atlanta Hartsfield-Jackson
Sun 4/5
9:50 pm-10:00 pm
1 stop19h 10m
Porto
Mon 5/4
6:30 am-8:23 pm
2 stops18h 53m
$880
AtlantaPorto
ATL - OPO
ATLOPO
Atlanta Hartsfield-Jackson
Mon 5/11
5:00 pm-6:10 pm
1 stop20h 10m
Porto
Mon 5/18
5:00 am-8:32 pm
2 stops20h 32m
$891
AtlantaPorto
ATL - OPO
ATLOPO
Atlanta Hartsfield-Jackson
Sat 5/9
7:45 pm-6:10 pm
1 stop17h 25m
Porto
Sun 5/24
5:55 am-6:32 pm
2 stops17h 37m
$894
AtlantaPorto
ATL - OPO
ATLOPO
Atlanta Hartsfield-Jackson
Thu 4/16
12:23 pm-10:40 am
2 stops17h 17m
Porto
Fri 4/24
5:55 am-1:55 pm
1 stop13h 00m
$899
Cheapest one-way
AtlantaPorto
ATL - OPO
ATLOPO
Atlanta Hartsfield-Jackson
Mon 6/15
12:00 pm-9:45 pm
3 stops28h 45m
$428
AtlantaPorto
ATL - OPO
ATLOPO
Atlanta Hartsfield-Jackson
Wed 6/24
5:00 pm-3:30 pm
1 stop17h 30m
$480
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from Atlanta to Porto
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Atlanta to Porto in March.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Atlanta-Porto flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Atlanta-Porto flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Atlanta-Porto flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Atlanta-Porto flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Atlanta-Porto flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Atlanta to Porto
Have a flexible travel schedule? Discover the best time to fly to Porto from Atlanta with our price prediction graph.
ATL-OPO
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Atlanta to Porto
How far ahead should I book a flight from Atlanta to Porto?
Use this chart to determine the optimal time to book a round-trip flight from Atlanta to Porto. Price data was last updated on March 6, 2026.
Booking 41 days in advance of your planned departure date is, on average, the best time to get cheap flights from Atlanta to Porto. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Atlanta to Porto?
Currently, February is the cheapest month in which you can book a flight from Atlanta to Porto (average of $468). Flying from Atlanta to Porto in June is currently the most expensive (average of $871). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Reviews of airlines servicing Porto
Get insights into the airlines that provide service to Porto. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Porto. Reviews last updated March 11, 2026.
Read through reviews of airlines operating flights from Atlanta to Porto, such as Delta,KLM, andAir France. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.9
Boarding
8.1
Comfort
7.9
Entertainment
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
2.0
MediocreSantiago,Apr 2024
ATL - JNB
Overall
7.9
Boarding
8.1
Comfort
7.9
Entertainment
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
2.0
MediocreSantiago,Apr 2024
ATL - JNB
Overall
7.9
Boarding
8.1
Comfort
7.9
Entertainment
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
2.0
MediocreSantiago,Apr 2024
ATL - JNB
Overall
7.9
Boarding
8.1
Comfort
7.9
Entertainment
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
2.0
MediocreSantiago,Apr 2024
ATL - JNB
Overall
7.9
Boarding
8.1
Comfort
7.9
Entertainment
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
2.0
MediocreSantiago,Apr 2024
ATL - JNB
Overall
7.9
Boarding
8.1
Comfort
7.9
Entertainment
7.8
Crew
8.5
Food
7.2
Reviews
1 / 20
2.0
MediocreSantiago,Apr 2024
ATL - JNB
Related info for your journey
Find useful and relevant information for your journey from Atlanta to Porto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Porto?
Book flights to Porto if you plan to visit one of these locationsVila Nova de Gaia
Aveiro
Arcos de Valdevez
Coimbra
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Atlanta and Porto flights
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Top 7 airlines flying from Atlanta to Porto
Discover the top 7 airlines that operate flights from Atlanta to Porto. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$561 | Average$944 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$564 | Average$1,260 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$569 | Average$818 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$610 | Average$975 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$644 | Average$688 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$656 | Average$796 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$707 | Average$771 | FlexibilityNo cancel fee | On-time70% |