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Portugal

$398+ Cheap flights from Dayton (DAY) to Portugal

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 10/31. Fares are subject to change and may not be available on all flights or dates of travel.
DAY — LIS
Aug 1 — Aug 81
Sat 8/1
Sat 8/8
1 adult, Economy
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Cheap flight deals from Dayton to Portugal

Cheapest flights from Dayton to Portugal
Explore the most affordable flight options available from Dayton to Portugal. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 2, 2026.

This United Airlines deal was found by Cheapflights users on 6/27. 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.
Tue 10/2710:20 am
DAY
-
LIS
1 stop19h 45m
United Airlines
Thu 11/55:00 am
LIS
-
DAY
2 stops18h 41m
United Airlines
Deal found 6/27$713
This Delta deal was found by Cheapflights users on 6/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/273:25 pm
DAY
-
LIS
2 stops15h 55m
Delta
Thu 11/511:30 am
LIS
-
DAY
2 stops28h 08m
Delta
Deal found 6/27$719
This KAYAK deal was found by Cheapflights users on 6/27. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/157:45 pm
DAY
-
LIS
2 stops22h 45m
Lufthansa
Fri 11/275:00 am
LIS
-
DAY
2 stops16h 51m
Lufthansa
Deal found 6/27$725
This United Airlines deal was found by Cheapflights users on 6/27. 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.
Tue 10/277:45 pm
DAY
-
LIS
1 stop10h 20m
United Airlines
Fri 11/612:20 pm
LIS
-
DAY
1 stop26h 27m
United Airlines
Deal found 6/27$726
This United Airlines deal was found by Cheapflights users on 6/27. 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.
Wed 10/282:44 pm
DAY
-
LIS
1 stop15h 36m
United Airlines
Fri 11/611:20 am
LIS
-
DAY
2 stops30h 44m
United Airlines
Deal found 6/27$729
This United Airlines deal was found by Cheapflights users on 6/27. 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.
Sun 11/152:44 pm
DAY
-
LIS
1 stop14h 21m
United Airlines
Tue 12/112:50 pm
LIS
-
DAY
2 stops27h 13m
United Airlines
Deal found 6/27$736
This KAYAK deal was found by Cheapflights users on 6/27. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/317:45 pm
DAY
-
LIS
2 stops39h 10m
Lufthansa
Wed 11/115:00 am
LIS
-
DAY
2 stops18h 41m
Lufthansa
Deal found 6/27$742
This United Airlines deal was found by Cheapflights users on 6/27. 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.
Sun 11/152:44 pm
DAY
-
LIS
1 stop14h 21m
United Airlines
Wed 12/25:00 am
LIS
-
DAY
2 stops23h 44m
United Airlines
Deal found 6/27$744
This United Airlines deal was found by Cheapflights users on 6/27. 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.
Tue 10/271:45 pm
DAY
-
OPO
2 stops15h 45m
United Airlines
Thu 11/56:00 am
OPO
-
DAY
2 stops19h 31m
United Airlines
Deal found 6/27$749
This Delta deal was found by Cheapflights users on 6/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/152:55 pm
DAY
-
LIS
2 stops15h 25m
Delta
Tue 12/111:30 am
LIS
-
DAY
2 stops31h 29m
Delta
Deal found 6/27$749
This United Airlines deal was found by Cheapflights users on 6/27. 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.
Tue 10/275:30 am
DAY
-
OPO
2 stops24h 00m
United Airlines
Fri 11/66:00 am
OPO
-
DAY
2 stops36h 04m
United Airlines
Deal found 6/27$754
This United Airlines deal was found by Cheapflights users on 6/27. 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.
Tue 10/271:45 pm
DAY
-
OPO
2 stops15h 45m
United Airlines
Tue 11/1012:35 pm
OPO
-
DAY
2 stops27h 28m
United Airlines
Deal found 6/27$758

Find flight deals from Dayton to Portugal

Keep the following information in mind while searching for Dayton to Portugal flight deals. Data was last updated July 2, 2026.

Round-trip from

$713
(United Airlines)

One-way from

$398
(United Airlines)
From Dayton to Portugal
Search Deals
One-way flight from Dayton to Portugal
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Dayton to Portugal 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 July 2, 2026.
Use the filters below to find and compare flights from Dayton to Portugal that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

Mon 11/2

10:20 am-10:20 am

1 stop19h 00m

Lisbon Humberto Delgado

Tue 11/10

5:00 am-6:41 pm

2 stops18h 41m

$713

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

Wed 10/28

3:25 pm-5:30 pm

2 stops22h 05m

Lisbon Humberto Delgado

Thu 11/5

11:30 am-10:38 am

2 stops28h 08m

$719

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

Mon 11/16

7:45 pm-10:20 am

1 stop9h 35m

Lisbon Humberto Delgado

Fri 11/27

12:20 pm-9:47 am

1 stop26h 27m

$726

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

Mon 11/16

2:44 pm-10:20 am

1 stop14h 36m

Lisbon Humberto Delgado

Wed 12/2

5:00 am-6:41 pm

2 stops18h 41m

$744

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

Thu 10/29

10:20 am-10:20 am

1 stop20h 00m

Lisbon Humberto Delgado

Tue 11/10

12:20 pm-2:01 pm

1 stop30h 41m

$776

DaytonPorto

DAY - OPO

DAYOPO

Dayton

Sun 11/1

11:23 am-9:05 am

2 stops16h 42m

Porto

Mon 11/9

11:00 am-11:14 pm

2 stops17h 14m

$808

DaytonPorto

DAY - OPO

DAYOPO

Dayton

Thu 10/29

1:45 pm-9:30 am

2 stops15h 45m

Porto

Wed 11/11

12:35 pm-11:44 pm

2 stops16h 09m

$808

DaytonPorto

DAY - OPO

DAYOPO

Dayton

Tue 10/27

1:45 pm-9:30 am

2 stops15h 45m

Porto

Mon 11/9

12:35 pm-11:44 pm

2 stops16h 09m

$808

DaytonPorto

DAY - OPO

DAYOPO

Dayton

Thu 10/29

1:45 pm-9:30 am

2 stops15h 45m

Porto

Tue 11/10

12:35 pm-11:44 pm

2 stops16h 09m

$808

DaytonPorto

DAY - OPO

DAYOPO

Dayton

Thu 10/29

1:45 pm-9:30 am

2 stops15h 45m

Porto

Thu 11/5

12:35 pm-11:44 pm

2 stops16h 09m

$808

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/28

Showing 1-10 of 23 resultsSorted by cheapest first
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Best time to book a flight from Dayton to Portugal

Have a flexible travel schedule? Discover the best time to fly to Portugal from Dayton with our price prediction graph.
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 Dayton to Portugal
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Dayton to Portugal. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Dayton to Portugal?

    For a flight from Dayton to Portugal, you will be flying from Dayton. Dayton (DAY) is just 10.0 mi from the center of the city.

  • How long is the flight from Dayton to Portugal?

    A quick flight from Dayton to Portugal can take about 19h. United Airlines provides one of the quickest options available for as low as $713. The distance between Dayton and Portugal is about 3883 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the most popular routes from Dayton to Portugal?

    Most travelers choose Dayton - Lisbon Humberto Delgado, Dayton - Porto or Dayton - Ponta Delgada Nordela when deciding on the best route from Dayton to Portugal.

  • Can I find deals for flights from Dayton to Portugal that include hotel bookings?

    Yes. In addition to deals on Dayton to Portugal flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dayton to Portugal?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dayton to Portugal.

  • Can I find deals for business class flights from Dayton to Portugal?

    Yes. Cheapflights offers flight deals from Dayton to Portugal by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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