$304+ 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 8/16. Fares are subject to change and may not be available on all flights or dates of travel.
ATL — OPO
Jul 10 — Jul 171
Round-trip
1 adult, Economy
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Find cheap flights from Atlanta to Porto with Cheapflights
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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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 June 10, 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 June 10, 2026.
This Justfly.com deal was found by Cheapflights users on 6/6. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/28:00 pm
ATL
- OPO
1 stop34h 05m
Scandinavian Airlines
Sat 11/1412:00 pm
OPO
- ATL
1 stop33h 30m
Scandinavian Airlines
Deal found 6/6![Scandinavian Airlines logo]()
$687
This Expedia deal was found by Cheapflights users on 6/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/86:35 pm
ATL
- OPO
2 stops22h 25m
Scandinavian Airlines
Sun 11/155:35 pm
OPO
- ATL
1 stop29h 25m
Scandinavian Airlines
Deal found 6/9![Scandinavian Airlines logo]()
$735
This Expedia deal was found by Cheapflights users on 6/6. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/210:10 pm
ATL
- OPO
2 stops16h 50m
Iberia
Sat 11/148:40 pm
OPO
- ATL
2 stops26h 08m
Iberia
Deal found 6/6![Iberia logo]()
$779
This American Airlines deal was found by Cheapflights users on 6/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/41:21 pm
ATL
- OPO
2 stops13h 19m
American Airlines
Sun 11/88:20 am
OPO
- ATL
2 stops19h 36m
American Airlines
Deal found 6/7![American Airlines logo]()
$780
This Orbitz deal was found by Cheapflights users on 6/5. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/181:08 pm
ATL
- OPO
2 stops21h 52m
Iberia
Wed 10/218:20 am
OPO
- ATL
2 stops20h 13m
Iberia
Deal found 6/5![Iberia logo]()
$786
This Orbitz deal was found by Cheapflights users on 6/9. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/68:00 pm
ATL
- OPO
2 stops21h 00m
Scandinavian Airlines
Sat 11/1412:00 pm
OPO
- ATL
1 stop33h 30m
Scandinavian Airlines
Deal found 6/9![Scandinavian Airlines logo]()
$795
This Orbitz deal was found by Cheapflights users on 6/8. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1410:57 am
ATL
- OPO
2 stops19h 48m
Iberia
Mon 10/198:40 pm
OPO
- ATL
2 stops27h 49m
Iberia
Deal found 6/8![Iberia logo]()
$797
This FlightHub deal was found by Cheapflights users on 6/8. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/179:50 pm
ATL
- OPO
1 stop36h 50m
Turkish Airlines
Wed 8/264:40 pm
OPO
- ATL
1 stop32h 05m
Turkish Airlines
Deal found 6/8![Turkish Airlines logo]()
$803
This Travelocity deal was found by Cheapflights users on 6/6. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/217:30 pm
ATL
- OPO
2 stops21h 35m
Scandinavian Airlines
Sun 8/308:20 pm
OPO
- ATL
1 stop25h 45m
Scandinavian Airlines
Deal found 6/6![Scandinavian Airlines logo]()
$805
This British Airways deal was found by Cheapflights users on 6/9. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/142:05 pm
ATL
- OPO
2 stops20h 55m
Multiple Airlines
Mon 10/198:40 pm
OPO
- ATL
2 stops27h 38m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$810
This United Airlines deal was found by Cheapflights users on 6/8. 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.
Wed 10/146:30 am
ATL
- OPO
1 stop22h 15m
United Airlines
Wed 10/2111:20 am
OPO
- ATL
1 stop33h 59m
United Airlines
Deal found 6/8![United Airlines logo]()
$817
This KLM deal was found by Cheapflights users on 6/10. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/65:40 pm
ATL
- OPO
1 stop11h 50m
KLM
Wed 11/114:10 pm
OPO
- ATL
1 stop27h 50m
KLM
Deal found 6/10![KLM logo]()
$818
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 June 10, 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 June 10, 2026.
This British Airways deal was found by Cheapflights users on 6/6. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1410:56 am
ATL
- OPO
2 stops15h 44m
Multiple Airlines
Mon 10/198:40 pm
OPO
- ATL
2 stops27h 38m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$810
This United Airlines deal was found by Cheapflights users on 6/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/172:33 pm
ATL
- OPO
2 stops14h 12m
United Airlines
Wed 8/2611:20 am
OPO
- ATL
2 stops32h 18m
United Airlines
Deal found 6/9![United Airlines logo]()
$864
This KLM deal was found by Cheapflights users on 6/6. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/210:30 pm
ATL
- OPO
1 stop12h 00m
KLM
Wed 8/1911:45 am
OPO
- ATL
1 stop13h 40m
KLM
Deal found 6/6![KLM logo]()
$867
This Delta deal was found by Cheapflights users on 6/9. 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.
Wed 10/144:45 pm
ATL
- OPO
2 stops17h 40m
Delta
Mon 10/195:00 am
OPO
- ATL
1 stop17h 07m
Delta
Deal found 6/9![Delta logo]()
$882
This Scandinavian Airlines deal was found by Cheapflights users on 6/9. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/157:00 pm
ATL
- OPO
2 stops59h 05m
Scandinavian Airlines
Thu 11/195:50 pm
OPO
- ATL
1 stop28h 55m
Scandinavian Airlines
Deal found 6/9![Scandinavian Airlines logo]()
$886
This Turkish Airlines deal was found by Cheapflights users on 6/9. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/39:50 pm
ATL
- OPO
1 stop30h 50m
Turkish Airlines
Sat 10/174:40 pm
OPO
- ATL
1 stop32h 05m
Turkish Airlines
Deal found 6/9![Turkish Airlines logo]()
$933
This United Airlines deal was found by Cheapflights users on 6/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/28:44 pm
ATL
- OPO
2 stops29h 11m
United Airlines
Wed 8/1911:20 am
OPO
- ATL
2 stops32h 18m
United Airlines
Deal found 6/6![United Airlines logo]()
$869
This KLM deal was found by Cheapflights users on 6/7. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/510:30 pm
ATL
- OPO
1 stop12h 00m
KLM
Tue 7/215:00 am
OPO
- ATL
1 stop13h 55m
KLM
Deal found 6/7![KLM logo]()
$910
This Delta deal was found by Cheapflights users on 6/8. 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.
Wed 9/168:05 pm
ATL
- OPO
1 stop20h 55m
Delta
Fri 10/25:00 am
OPO
- ATL
1 stop20h 25m
Delta
Deal found 6/8![Delta logo]()
$917
This Delta deal was found by Cheapflights users on 6/8. 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.
Wed 9/165:35 pm
ATL
- OPO
1 stop11h 55m
Delta
Thu 10/15:55 am
OPO
- ATL
1 stop12h 55m
Delta
Deal found 6/8![Delta logo]()
$924
This United Airlines deal was found by Cheapflights users on 6/5. 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.
Sat 10/38:12 pm
ATL
- OPO
1 stop32h 33m
United Airlines
Sat 10/176:00 am
OPO
- ATL
2 stops23h 45m
United Airlines
Deal found 6/5![United Airlines logo]()
$943
This Delta deal was found by Cheapflights users on 6/8. 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.
Tue 9/154:30 pm
ATL
- OPO
1 stop17h 55m
Delta
Fri 10/25:55 am
OPO
- ATL
2 stops19h 36m
Delta
Deal found 6/8![Delta logo]()
$934
Last-minute flights from Atlanta to PortoDiscover last-minute flight deals from Atlanta to Porto. Data last updated June 10, 2026 and is based on user searches.
Discover last-minute flight deals from Atlanta to Porto. Data last updated June 10, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 6/7. 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.
Sun 7/510:30 pm
ATL
- OPO
1 stop12h 00m
Delta
Fri 10/25:00 am
OPO
- ATL
1 stop20h 25m
Delta
Deal found 6/7![Delta logo]()
$867
This Delta deal was found by Cheapflights users on 6/7. 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.
Sun 7/510:30 pm
ATL
- OPO
1 stop18h 30m
Delta
Thu 10/15:55 am
OPO
- ATL
2 stops21h 35m
Delta
Deal found 6/7![Delta logo]()
$884
This Travelocity deal was found by Cheapflights users on 6/7. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/512:13 pm
ATL
- OPO
2 stops26h 47m
Iberia
Wed 9/308:20 am
OPO
- ATL
2 stops20h 37m
Iberia
Deal found 6/7![Iberia logo]()
$888
This Air Canada deal was found by Cheapflights users on 6/7. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/73:00 pm
ATL
- OPO
2 stops35h 00m
Air Canada
Wed 9/3011:20 am
OPO
- ATL
2 stops38h 11m
Air Canada
Deal found 6/7![Air Canada logo]()
$871
This Air Canada deal was found by Cheapflights users on 6/7. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/812:55 pm
ATL
- OPO
1 stop13h 05m
Air Canada
Wed 9/3011:20 am
OPO
- ATL
2 stops38h 11m
Air Canada
Deal found 6/7![Air Canada logo]()
$863
This United Airlines deal was found by Cheapflights users on 6/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/85:30 am
ATL
- OPO
2 stops23h 15m
United Airlines
Wed 9/3011:20 am
OPO
- ATL
2 stops31h 17m
United Airlines
Deal found 6/9![United Airlines logo]()
$869
This United deal was found by Cheapflights users on 6/9. 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 United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/86:07 am
ATL
- OPO
1 stop22h 38m
Multiple Airlines
Wed 9/3011:20 am
OPO
- ATL
2 stops38h 50m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$874
This Air Canada deal was found by Cheapflights users on 6/7. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/87:15 am
ATL
- OPO
2 stops18h 45m
Air Canada
Thu 10/111:50 am
OPO
- ATL
2 stops31h 25m
Air Canada
Deal found 6/7![Air Canada logo]()
$889
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 June 10, 2026.
Search for one-way flight options from Atlanta to Porto. Find affordable one-way fares based on user searches. Data last updated June 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/9. 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.
Sun 8/166:40 am
ATL
- OPO
3 stops52h 00m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$304
This Kiwi.com deal was found by Cheapflights users on 6/9. 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 9/910:48 pm
ATL
- OPO
3 stops53h 37m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$337
This Kiwi.com deal was found by Cheapflights users on 6/9. 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 7/295:01 am
ATL
- OPO
3 stops47h 24m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$346
This Kiwi.com deal was found by Cheapflights users on 6/8. 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.
Thu 9/32:29 pm
ATL
- OPO
2 stops21h 46m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$415
This Travelocity deal was found by Cheapflights users on 6/9. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/912:55 pm
ATL
- OPO
1 stop13h 05m
Air Canada
Deal found 6/9![Air Canada logo]()
$442
This United Airlines deal was found by Cheapflights users on 6/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1212:55 pm
ATL
- OPO
1 stop12h 55m
United Airlines
Deal found 6/6![United Airlines logo]()
$462
This Justfly.com deal was found by Cheapflights users on 6/9. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/712:55 pm
ATL
- OPO
1 stop13h 05m
Air Canada
Deal found 6/9![Air Canada logo]()
$522
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 June 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $687 (Justfly.com) |
One-way from | $304 (Kiwi.com) |
Popular in | June |
Cheapest in | March |
Average price | $1,210 |
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 June 10, 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 10/14
10:56 am-7:40 am
2 stops15h 44m
Porto
Mon 10/19
8:40 pm-7:18 pm
2 stops27h 38m
$810
AtlantaPorto
ATL - OPO
ATLOPO
Atlanta Hartsfield-Jackson
Mon 8/17
2:33 pm-9:45 am
2 stops14h 12m
Porto
Wed 8/26
11:20 am-2:38 pm
2 stops32h 18m
$864
AtlantaPorto
ATL - OPO
ATLOPO
Atlanta Hartsfield-Jackson
Sun 8/2
10:30 pm-3:30 pm
1 stop12h 00m
Porto
Wed 8/19
11:45 am-8:25 pm
1 stop13h 40m
$867
AtlantaPorto
ATL - OPO
ATLOPO
Atlanta Hartsfield-Jackson
Sun 8/2
8:44 pm-6:55 am
2 stops29h 11m
Porto
Wed 8/19
11:20 am-2:38 pm
2 stops32h 18m
$869
AtlantaPorto
ATL - OPO
ATLOPO
Atlanta Hartsfield-Jackson
Wed 10/14
4:45 pm-3:25 pm
2 stops17h 40m
Porto
Mon 10/19
5:00 am-5:07 pm
1 stop17h 07m
$882
AtlantaPorto
ATL - OPO
ATLOPO
Atlanta Hartsfield-Jackson
Sun 11/15
7:00 pm-11:05 am
2 stops59h 05m
Porto
Thu 11/19
5:50 pm-5:45 pm
1 stop28h 55m
$886
AtlantaPorto
ATL - OPO
ATLOPO
Atlanta Hartsfield-Jackson
Sun 7/5
10:30 pm-3:30 pm
1 stop12h 00m
Porto
Tue 7/21
5:00 am-1:55 pm
1 stop13h 55m
$910
AtlantaPorto
ATL - OPO
ATLOPO
Atlanta Hartsfield-Jackson
Wed 9/16
8:05 pm-10:00 pm
1 stop20h 55m
Porto
Fri 10/2
5:00 am-8:25 pm
1 stop20h 25m
$917
Quickest round-trip
AtlantaPorto
ATL - OPO
ATLOPO
Atlanta Hartsfield-Jackson
Wed 9/16
5:35 pm-10:30 am
1 stop11h 55m
Porto
Thu 10/1
5:55 am-1:50 pm
1 stop12h 55m
$924
AtlantaPorto
ATL - OPO
ATLOPO
Atlanta Hartsfield-Jackson
Sat 10/3
9:50 pm-9:40 am
1 stop30h 50m
Porto
Sat 10/17
4:40 pm-7:45 pm
1 stop32h 05m
$933
Showing 1-10 of 17 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 June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 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 53 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 $1,210). 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 June 10, 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.
Crew
8.5
Food
7.2
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Overall
7.9
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
Crew
8.5
Food
7.2
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Overall
7.9
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
Crew
8.5
Food
7.2
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Overall
7.9
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
Crew
8.5
Food
7.2
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Overall
7.9
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
Crew
8.5
Food
7.2
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Overall
7.9
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
Crew
8.5
Food
7.2
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Overall
7.9
Reviews
1 / 20
4.0
OkayJoel,May 2026
ATL - JAX
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 June 10, 2026.
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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 June 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$464 | Average$935 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$533 | Average$889 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$579 | Average$880 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$592 | Average$762 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$604 | Average$988 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$644 | Average$707 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$707 | Average$707 | FlexibilityNo cancel fee | On-time70% |