Find cheap Delta flights to Portugal
WAS — LIS
Oct 10 — Oct 171
Round-trip
1 adult, Economy
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Cheapest Delta flights from USA to PortugalExplore the most affordable Delta flight options available from USA to Portugal. Find the lowest fares with prices last updated on September 10, 2026.
Explore the most affordable Delta flight options available from USA to Portugal. Find the lowest fares with prices last updated on September 10, 2026.
This Delta deal was found by Cheapflights users on 9/9. 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.
Mon 10/269:20 am -
1 stop19h 40m
Wed 11/411:15 am -
1 stop13h 48m
Deal found 9/9![Delta logo]()
$631
This SmartFares deal was found by Cheapflights users on 9/9. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/259:15 pm -
Nonstop6h 45m
Sun 11/810:00 am -
Nonstop8h 13m
Deal found 9/9![Delta logo]()
$639
This Delta deal was found by Cheapflights users on 9/9. 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.
Tue 10/1310:35 pm -
Nonstop6h 55m
Thu 11/2610:15 am -
Nonstop8h 05m
Deal found 9/9![Delta logo]()
$641
Best Delta flights from USA to PortugalDiscover carefully curated Delta flight deals from USA to Portugal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
Discover carefully curated Delta flight deals from USA to Portugal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 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 11/311:00 am -
1 stop17h 00m
Thu 11/1911:15 am -
1 stop15h 57m
Deal found 9/8![Delta logo]()
$639
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
This Delta deal was found by Cheapflights users on 9/9. 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.
Mon 10/265:00 pm -
1 stop12h 00m
Tue 11/311:15 am -
1 stop15h 12m
Deal found 9/9![Delta logo]()
$658
Direct Delta flights from USA to PortugalExplore non-stop Delta flight options from USA to Portugal based on user searches, and compare prices and availability for your desired travel dates. Data last updated September 10, 2026.
Explore non-stop Delta flight options from USA to Portugal based on user searches, and compare prices and availability for your desired travel dates. Data last updated September 10, 2026.
This SmartFares deal was found by Cheapflights users on 9/9. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/259:15 pm -
Nonstop6h 45m
Sun 11/810:00 am -
Nonstop8h 13m
Deal found 9/9![Delta logo]()
$639
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
Thu 11/1210:15 am -
Nonstop8h 05m
Deal found 9/6![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 11/18:15 pm -
Nonstop6h 45m
Tue 11/1010:00 am -
Nonstop8h 13m
Deal found 9/7![Delta logo]()
$652
Last-minute Delta flights from USA to PortugalDiscover last-minute Delta flight deals from USA to Portugal. Data last updated September 10, 2026 and is based on user searches.
Discover last-minute Delta flight deals from USA to Portugal. Data last updated September 10, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/9. 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.
Mon 10/269:20 am -
1 stop19h 40m
Wed 11/411:15 am -
1 stop13h 48m
Deal found 9/9![Delta logo]()
$631
This SmartFares deal was found by Cheapflights users on 9/9. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/259:15 pm -
Nonstop6h 45m
Sun 11/810:00 am -
Nonstop8h 13m
Deal found 9/9![Delta logo]()
$639
This Delta deal was found by Cheapflights users on 9/9. 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.
Tue 10/1310:35 pm -
Nonstop6h 55m
Thu 11/2610:15 am -
Nonstop8h 05m
Deal found 9/9![Delta logo]()
$641
One-way Delta flights to PortugalSearch for one-way Delta flight options to Portugal. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
Search for one-way Delta flight options to Portugal. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
This Delta deal was found by Cheapflights users on 9/9. 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.
Mon 12/712:22 pm -
2 stops14h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Delta logo]()
$360
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.
Sat 3/65:15 pm -
2 stops33h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Delta logo]()
$366
This Delta deal was found by Cheapflights users on 9/9. 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.
Fri 2/197:30 am -
1 stop19h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Delta logo]()
$376
Flights to Portugal with Delta at a glance
Find detailed information about Delta flights from USA to Portugal. Explore the options provided by Delta to plan your journey from USA to Portugal. Data last updated September 10, 2026.
Cheapflights Insights
Find cheap Delta flights to Portugal
US0-PT0
PHL-LIS
MIA-LIS
JFK-LIS
JFK-OPO
How long is the flight to Portugal with Delta?
On average, Delta flights from the United States to Portugal take 6 hours 21 minutes. Flights to Portugal 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 Portugal
The most flights to Portugal operated by Delta are scheduled on a Monday (4 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (3 on average).
When is the best time to book a flight to Portugal with Delta?
The best time to book a flight to Portugal with Delta is 84 days before departure. On average, fares are higher if you book on the same day as departure.
FAQs for Delta flights to Portugal
Reviews from Delta flights to Portugal
See what other users thought of their Delta experience.
Overview
Reviews
Delta
8,553 reviews
Overview
Entertainment
7.8
Boarding
8.1
Comfort
7.8
Food
7.2
Crew
8.5
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 2851
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