$296+ 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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
ATL — OPO
May 27 — Jun 31
Round-trip
1 adult, Economy
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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 April 27, 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 April 27, 2026.
This FlightHub deal was found by Cheapflights users on 4/26. 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 9/19:50 pm
ATL
- OPO
1 stop36h 50m
Turkish Airlines
Wed 9/304:40 pm
OPO
- ATL
1 stop32h 05m
Turkish Airlines
Deal found 4/26![Turkish Airlines logo]()
$773
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Sun 11/152:30 pm
ATL
- OPO
2 stops14h 00m
United Airlines
Thu 12/36:00 am
OPO
- ATL
2 stops19h 04m
United Airlines
Deal found 4/23![United Airlines logo]()
$778
This Expedia deal was found by Cheapflights users on 4/23. 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.
Tue 11/176:38 pm
ATL
- OPO
2 stops16h 22m
Iberia
Sat 12/58:40 pm
OPO
- ATL
2 stops26h 08m
Iberia
Deal found 4/23![Iberia logo]()
$781
This Air Canada deal was found by Cheapflights users on 4/23. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1812:55 pm
ATL
- OPO
2 stops18h 10m
Air Canada
Thu 12/36:00 am
OPO
- ATL
2 stops35h 03m
Air Canada
Deal found 4/23![Air Canada logo]()
$784
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Sun 11/152:30 pm
ATL
- OPO
2 stops14h 00m
United Airlines
Wed 12/212:30 pm
OPO
- ATL
1 stop31h 00m
United Airlines
Deal found 4/23![United Airlines logo]()
$789
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Sun 11/152:30 pm
ATL
- OPO
2 stops14h 00m
United Airlines
Mon 12/712:30 pm
OPO
- ATL
2 stops38h 23m
United Airlines
Deal found 4/23![United Airlines logo]()
$792
This SmartFares deal was found by Cheapflights users on 4/22. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/89:50 pm
ATL
- OPO
1 stop20h 40m
Turkish Airlines
Thu 10/156:10 am
OPO
- ATL
1 stop18h 35m
Turkish Airlines
Deal found 4/22![Turkish Airlines logo]()
$794
This Booking.com deal was found by Cheapflights users on 4/26. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/107:30 pm
ATL
- OPO
1 stop34h 30m
Scandinavian Airlines
Fri 10/235:55 pm
OPO
- ATL
1 stop28h 10m
Scandinavian Airlines
Deal found 4/26![Scandinavian Airlines logo]()
$798
This oojo deal was found by Cheapflights users on 4/23. 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.
Mon 10/59:50 pm
ATL
- OPO
1 stop30h 55m
Turkish Airlines
Wed 10/144:40 pm
OPO
- ATL
1 stop32h 05m
Turkish Airlines
Deal found 4/23![Turkish Airlines logo]()
$799
This Air Canada deal was found by Cheapflights users on 4/23. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1812:55 pm
ATL
- OPO
2 stops18h 10m
Air Canada
Wed 12/26:00 am
OPO
- ATL
2 stops44h 53m
Air Canada
Deal found 4/23![Air Canada logo]()
$800
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 April 27, 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 April 27, 2026.
This United Airlines deal was found by Cheapflights users on 4/26. 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.
Thu 8/203:09 pm
ATL
- OPO
1 stop10h 46m
United Airlines
Sun 8/3012:15 pm
OPO
- ATL
2 stops40h 23m
United Airlines
Deal found 4/26![United Airlines logo]()
$985
This Delta deal was found by Cheapflights users on 4/24. 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 10/33:55 pm
ATL
- OPO
1 stop18h 30m
Delta
Sun 10/115:55 am
OPO
- ATL
2 stops19h 14m
Delta
Deal found 4/24![Delta logo]()
$1,055
This KLM deal was found by Cheapflights users on 4/24. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/74:55 pm
ATL
- OPO
1 stop12h 35m
KLM
Tue 7/216:15 am
OPO
- ATL
1 stop16h 10m
KLM
Deal found 4/24![KLM logo]()
$1,064
This United Airlines deal was found by Cheapflights users on 4/26. 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.
Thu 5/73:55 pm
ATL
- OPO
1 stop14h 20m
United Airlines
Thu 5/146:00 am
OPO
- ATL
2 stops18h 54m
United Airlines
Deal found 4/26![United Airlines logo]()
$988
This Delta deal was found by Cheapflights users on 4/22. 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.
Fri 10/29:55 pm
ATL
- OPO
1 stop12h 30m
Delta
Sun 10/115:55 am
OPO
- ATL
2 stops19h 14m
Delta
Deal found 4/22![Delta logo]()
$1,055
This United Airlines deal was found by Cheapflights users on 4/27. 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.
Fri 9/253:55 pm
ATL
- OPO
1 stop14h 20m
United Airlines
Sun 10/46:00 am
OPO
- ATL
2 stops18h 12m
United Airlines
Deal found 4/27![United Airlines logo]()
$1,013
This KLM deal was found by Cheapflights users on 4/23. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/58:05 pm
ATL
- OPO
1 stop14h 25m
KLM
Sat 7/186:30 am
OPO
- ATL
1 stop15h 55m
KLM
Deal found 4/23![KLM logo]()
$1,134
This Delta deal was found by Cheapflights users on 4/25. 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 7/84:55 pm
ATL
- OPO
1 stop12h 35m
Delta
Tue 7/215:00 am
OPO
- ATL
2 stops17h 03m
Delta
Deal found 4/25![Delta logo]()
$1,066
This United Airlines deal was found by Cheapflights users on 4/23. 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.
Thu 10/13:55 pm
ATL
- OPO
1 stop18h 50m
United Airlines
Sun 10/46:00 am
OPO
- ATL
2 stops23h 09m
United Airlines
Deal found 4/23![United Airlines logo]()
$1,014
This United Airlines deal was found by Cheapflights users on 4/22. 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.
Sun 7/56:59 pm
ATL
- OPO
2 stops31h 01m
United Airlines
Sat 7/1810:15 am
OPO
- ATL
2 stops27h 51m
United Airlines
Deal found 4/22![United Airlines logo]()
$1,101
This United Airlines deal was found by Cheapflights users on 4/24. 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.
Sun 7/58:40 pm
ATL
- OPO
2 stops29h 20m
United Airlines
Wed 7/158:55 am
OPO
- ATL
1 stop28h 28m
United Airlines
Deal found 4/24![United Airlines logo]()
$1,103
Last-minute flights from Atlanta to PortoDiscover last-minute flight deals from Atlanta to Porto. Data last updated April 27, 2026 and is based on user searches.
Discover last-minute flight deals from Atlanta to Porto. Data last updated April 27, 2026 and is based on user searches.
This FlightHub deal was found by Cheapflights users on 4/25. 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.
Sat 4/253:05 pm
ATL
- OPO
1 stop37h 35m
Turkish Airlines
Wed 4/294:40 pm
OPO
- ATL
1 stop32h 05m
Turkish Airlines
Deal found 4/25![Turkish Airlines logo]()
$974
This Gotogate deal was found by Cheapflights users on 4/24. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2711:25 am
ATL
- OPO
2 stops19h 00m
SWISS
Mon 5/117:20 pm
OPO
- ATL
2 stops31h 01m
SWISS
Deal found 4/24![SWISS logo]()
$925
This United Airlines deal was found by Cheapflights users on 4/25. 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 4/278:15 am
ATL
- OPO
2 stops20h 30m
United Airlines
Mon 5/1112:10 pm
OPO
- ATL
1 stop30h 35m
United Airlines
Deal found 4/25![United Airlines logo]()
$929
This Austrian Airlines deal was found by Cheapflights users on 4/25. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2712:35 pm
ATL
- OPO
2 stops19h 05m
Austrian Airlines
Mon 5/1110:10 am
OPO
- ATL
2 stops37h 18m
Austrian Airlines
Deal found 4/25![Austrian Airlines logo]()
$956
This Sembo deal was found by Cheapflights users on 4/22. 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 Sembo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/23:05 pm
ATL
- OPO
1 stop37h 35m
Turkish Airlines
Fri 5/154:45 pm
OPO
- ATL
1 stop25h 15m
Turkish Airlines
Deal found 4/22![Turkish Airlines logo]()
$825
This oojo deal was found by Cheapflights users on 4/22. 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.
Sat 5/23:05 pm
ATL
- OPO
1 stop37h 35m
Turkish Airlines
Fri 5/84:45 pm
OPO
- ATL
1 stop25h 15m
Turkish Airlines
Deal found 4/22![Turkish Airlines logo]()
$851
This AirNGo deal was found by Cheapflights users on 4/22. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/23:37 pm
ATL
- OPO
2 stops39h 23m
SWISS
Fri 5/158:40 am
OPO
- ATL
2 stops17h 41m
SWISS
Deal found 4/22![SWISS logo]()
$912
This Gotogate deal was found by Cheapflights users on 4/22. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/23:55 pm
ATL
- OPO
1 stop17h 10m
Multiple Airlines
Fri 5/158:40 am
OPO
- ATL
2 stops17h 41m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$964
This Gotogate deal was found by Cheapflights users on 4/26. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/73:55 pm
ATL
- OPO
1 stop17h 50m
Multiple Airlines
Thu 5/146:00 am
OPO
- ATL
2 stops20h 21m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$970
This Trip.com deal was found by Cheapflights users on 4/22. 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.
Tue 5/129:15 am
ATL
- OPO
2 stops29h 05m
Multiple Airlines
Tue 5/267:35 am
OPO
- ATL
2 stops37h 15m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$829
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 April 27, 2026.
Search for one-way flight options from Atlanta to Porto. Find affordable one-way fares based on user searches. Data last updated April 27, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/26. 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.
Fri 8/216:35 am
ATL
- OPO
3 stops35h 50m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$296
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 8/610:20 am
ATL
- OPO
3 stops51h 10m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$367
This Kiwi.com deal was found by Cheapflights users on 4/23. 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 5/165:50 am
ATL
- OPO
3 stops57h 40m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$430
This Kiwi.com deal was found by Cheapflights users on 4/25. 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 6/410:34 pm
ATL
- OPO
3 stops43h 26m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$432
This Kiwi.com deal was found by Cheapflights users on 4/23. 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 5/196:00 am
ATL
- OPO
3 stops30h 50m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$433
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 6/310:35 pm
ATL
- OPO
3 stops40h 50m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$440
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 5/305:05 am
ATL
- OPO
2 stops48h 55m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$443
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 9/73:55 pm
ATL
- OPO
3 stops35h 40m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$444
This Expedia deal was found by Cheapflights users on 4/26. 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.
Fri 8/2110:35 pm
ATL
- OPO
2 stops28h 05m
Iberia
Deal found 4/26![Iberia logo]()
$457
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 April 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $773 (FlightHub) |
One-way from | $296 (Kiwi.com) |
Popular in | June |
Cheapest in | March |
Average price | $800 |
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 April 27, 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
Thu 8/20
3:09 pm-6:55 am
1 stop10h 46m
Porto
Sun 8/30
12:15 pm-11:38 pm
2 stops40h 23m
$985
AtlantaPorto
ATL - OPO
ATLOPO
Atlanta Hartsfield-Jackson
Thu 5/7
3:55 pm-11:15 am
1 stop14h 20m
Porto
Thu 5/14
6:00 am-7:54 pm
2 stops18h 54m
$988
AtlantaPorto
ATL - OPO
ATLOPO
Atlanta Hartsfield-Jackson
Fri 9/25
3:55 pm-11:15 am
1 stop14h 20m
Porto
Sun 10/4
6:00 am-7:12 pm
2 stops18h 12m
$1,013
AtlantaPorto
ATL - OPO
ATLOPO
Atlanta Hartsfield-Jackson
Thu 10/1
3:55 pm-3:45 pm
1 stop18h 50m
Porto
Sun 10/4
6:00 am-12:09 am
2 stops23h 09m
$1,014
AtlantaPorto
ATL - OPO
ATLOPO
Atlanta Hartsfield-Jackson
Sat 10/3
3:55 pm-3:25 pm
1 stop18h 30m
Porto
Sun 10/11
5:55 am-8:09 pm
2 stops19h 14m
$1,055
AtlantaPorto
ATL - OPO
ATLOPO
Atlanta Hartsfield-Jackson
Fri 10/2
9:55 pm-3:25 pm
1 stop12h 30m
Porto
Sun 10/11
5:55 am-8:09 pm
2 stops19h 14m
$1,055
Quickest round-trip
AtlantaPorto
ATL - OPO
ATLOPO
Atlanta Hartsfield-Jackson
Tue 7/7
4:55 pm-10:30 am
1 stop12h 35m
Porto
Tue 7/21
6:15 am-5:25 pm
1 stop16h 10m
$1,064
AtlantaPorto
ATL - OPO
ATLOPO
Atlanta Hartsfield-Jackson
Wed 7/8
4:55 pm-10:30 am
1 stop12h 35m
Porto
Tue 7/21
5:00 am-5:03 pm
2 stops17h 03m
$1,066
AtlantaPorto
ATL - OPO
ATLOPO
Atlanta Hartsfield-Jackson
Sun 7/5
6:59 pm-7:00 am
2 stops31h 01m
Porto
Sat 7/18
10:15 am-9:06 am
2 stops27h 51m
$1,101
AtlantaPorto
ATL - OPO
ATLOPO
Atlanta Hartsfield-Jackson
Sun 7/5
8:40 pm-7:00 am
2 stops29h 20m
Porto
Wed 7/15
8:55 am-8:23 am
1 stop28h 28m
$1,103
Showing 1-10 of 21 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 April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*3 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?
Booking 40 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, March is the cheapest month in which you can book a flight from Atlanta to Porto (average of $581). Flying from Atlanta to Porto in June is currently the most expensive (average of $1,201). 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.
How much does it cost to fly round-trip from Atlanta to Porto?
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 April 27, 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
Food
7.2
Comfort
7.9
Crew
8.5
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
2.0
MediocreSantiago,Apr 2024
ATL - JNB
Overall
7.9
Food
7.2
Comfort
7.9
Crew
8.5
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
2.0
MediocreSantiago,Apr 2024
ATL - JNB
Overall
7.9
Food
7.2
Comfort
7.9
Crew
8.5
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
2.0
MediocreSantiago,Apr 2024
ATL - JNB
Overall
7.9
Food
7.2
Comfort
7.9
Crew
8.5
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
2.0
MediocreSantiago,Apr 2024
ATL - JNB
Overall
7.9
Food
7.2
Comfort
7.9
Crew
8.5
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
2.0
MediocreSantiago,Apr 2024
ATL - JNB
Overall
7.9
Food
7.2
Comfort
7.9
Crew
8.5
Boarding
8.1
Entertainment
7.8
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
Browse other Atlanta and Porto flight options. Last updated on April 27, 2026.
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Other flights to Porto
Explore flights to Porto departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on April 27, 2026.
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 April 27, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$550 | Average$889 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$564 | Average$1,260 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$579 | Average$854 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$604 | Average$989 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$644 | Average$687 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$656 | Average$795 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$707 | Average$707 | FlexibilityNo cancel fee | On-time70% |