Find cheap Delta flights to Porto
DSM — OPO
Oct 8 — Oct 151
Round-trip
1 adult, Economy
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Cheapest Delta flights from USA to PortoExplore the most affordable Delta flight options available from USA to Porto. Find the lowest fares with prices last updated on September 8, 2026.
Explore the most affordable Delta flight options available from USA to Porto. Find the lowest fares with prices last updated on September 8, 2026.
This Delta deal was found by Cheapflights users on 9/8. 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.
Mon 10/1911:47 am -
1 stop17h 43m
Sat 10/3111:15 am -
1 stop32h 40m
Deal found 9/8![Delta logo]()
$620
This Delta deal was found by Cheapflights users on 9/8. 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.
Mon 10/193:30 pm -
1 stop14h 00m
Wed 10/2811:30 am -
1 stop13h 55m
Deal found 9/8![Delta logo]()
$631
This Delta deal was found by Cheapflights users on 9/8. 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.
Mon 10/1911:20 am -
2 stops18h 10m
Tue 10/275:00 am -
1 stop14h 55m
Deal found 9/8![Delta logo]()
$636
Best Delta flights from USA to PortoDiscover carefully curated Delta flight deals from USA to Porto that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 8, 2026.
Discover carefully curated Delta flight deals from USA to Porto that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 8, 2026.
This Delta deal was found by Cheapflights users on 9/8. 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 10/2012:05 pm -
2 stops17h 25m
Fri 10/3011:15 am -
2 stops27h 16m
Deal found 9/8![Delta logo]()
$646
This Delta deal was found by Cheapflights users on 9/7. 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 11/48:30 pm -
Nonstop6h 45m
Thu 11/1211:15 am -
1 stop31h 45m
Deal found 9/7![Delta logo]()
$655
This Delta deal was found by Cheapflights users on 9/7. 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 10/258:30 pm -
Nonstop6h 45m
Mon 11/211:15 am -
1 stop32h 45m
Deal found 9/7![Delta logo]()
$656
Direct Delta flights from USA to PortoExplore non-stop Delta flight options from USA to Porto based on user searches, and compare prices and availability for your desired travel dates. Data last updated September 8, 2026.
Explore non-stop Delta flight options from USA to Porto based on user searches, and compare prices and availability for your desired travel dates. Data last updated September 8, 2026.
This Delta deal was found by Cheapflights users on 9/4. 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 10/258:30 pm -
Nonstop6h 45m
Thu 11/1910:15 am -
Nonstop8h 05m
Deal found 9/4![Delta logo]()
$641
This Delta deal was found by Cheapflights users on 9/7. 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 10/258:30 pm -
Nonstop6h 45m
Mon 11/210:15 am -
Nonstop8h 05m
Deal found 9/7![Delta logo]()
$691
This Delta deal was found by Cheapflights users on 9/6. 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.
Wed 11/48:30 pm -
Nonstop6h 45m
Mon 11/910:15 am -
Nonstop8h 05m
Deal found 9/6![Delta logo]()
$721
Last-minute Delta flights from USA to PortoDiscover last-minute Delta flight deals from USA to Porto. Data last updated September 8, 2026 and is based on user searches.
Discover last-minute Delta flight deals from USA to Porto. Data last updated September 8, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/8. 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.
Mon 10/1911:47 am -
1 stop17h 43m
Sat 10/3111:15 am -
1 stop32h 40m
Deal found 9/8![Delta logo]()
$620
This Delta deal was found by Cheapflights users on 9/8. 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.
Mon 10/193:30 pm -
1 stop14h 00m
Wed 10/2811:30 am -
1 stop13h 55m
Deal found 9/8![Delta logo]()
$631
This Delta deal was found by Cheapflights users on 9/8. 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.
Mon 10/1911:20 am -
2 stops18h 10m
Tue 10/275:00 am -
1 stop14h 55m
Deal found 9/8![Delta logo]()
$636
One-way Delta flights to PortoSearch for one-way Delta flight options to Porto. Find affordable one-way fares based on user searches. Data last updated September 8, 2026.
Search for one-way Delta flight options to Porto. Find affordable one-way fares based on user searches. Data last updated September 8, 2026.
This Delta deal was found by Cheapflights users on 9/7. 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 12/3010:19 am -
2 stops16h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Delta logo]()
$334
This Delta deal was found by Cheapflights users on 9/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/253:35 pm -
2 stops25h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Delta logo]()
$339
This Delta deal was found by Cheapflights users on 9/7. 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.
Tue 12/2911:40 am -
2 stops17h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![Delta logo]()
$343
Flights to Porto with Delta at a glance
Find detailed information about Delta flights from USA to Porto. Explore the options provided by Delta to plan your journey from USA to Porto. Data last updated September 8, 2026.
Cheapflights Insights
Find cheap Delta flights to Porto
US0-OPO
JFK-OPO
MIA-OPO
How long is the flight to Porto with Delta?
On average, Delta flights from the United States to Porto take 9 hours 13 minutes. Flights to Porto from other popular cities in the United States will vary in length. Below are a few examples of popular routes and their flight times.
Delta weekly flight availability to Porto
The most flights to Porto operated by Delta are scheduled on a Monday (2 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (1 on average).
When is the best time to book a flight to Porto with Delta?
The best time to book a flight to Porto with Delta is 28 days before departure. On average, fares are higher if you book on the same day as departure.
FAQs about flights to Porto with Delta
Reviews of Delta
See what Cheapflights users have to say about their Delta experience.
Overview
Reviews
Delta
8,550 reviews
Overview
Crew
8.5
Food
7.2
Boarding
8.1
Entertainment
7.8
Comfort
7.8
Recent reviews
8.0
|Aug 2026Although I still enjoy flying Delta, the overall flying experience feels cheapened. But I guess that is true of most, if not all american carriers.
10.0
|Aug 2026No food and entertainment. Also de aircraft is old and noisy.
10.0
|Jul 2026Great
8.0
|Jun 2026All good with the airline
8.0
|Jun 2026Food snacks u can do better
1 out of 2850
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