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Portugal

$449+ 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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
DAY — LIS
Sep 14 — Sep 211
Mon 9/14
Mon 9/21
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 August 15, 2026.

This United Airlines deal was found by Cheapflights users on 8/11. 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 10/187:33 pm -
1 stop9h 57m
Tue 11/35:00 am -
2 stops23h 39m
Deal found 8/11$714
This United Airlines deal was found by Cheapflights users on 8/11. 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 10/2011:32 am -
2 stops16h 48m
Wed 11/45:00 am -
2 stops20h 49m
Deal found 8/11$717
This United Airlines deal was found by Cheapflights users on 8/11. 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 10/1910:22 am -
2 stops16h 58m
Tue 11/35:00 am -
2 stops20h 49m
Deal found 8/11$719
This United Airlines deal was found by Cheapflights users on 8/11. 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 10/189:00 am -
2 stops21h 05m
Wed 11/45:00 am -
2 stops23h 39m
Deal found 8/11$722
This KLM deal was found by Cheapflights users on 8/11. 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.
Mon 10/193:25 pm -
2 stops18h 10m
Tue 11/35:00 am -
2 stops23h 16m
Deal found 8/11$725
This United Airlines deal was found by Cheapflights users on 8/11. 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 10/187:33 pm -
1 stop9h 57m
Thu 11/512:20 pm -
1 stop11h 53m
Deal found 8/11$727
This United Airlines deal was found by Cheapflights users on 8/11. 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 10/1910:22 am -
2 stops16h 58m
Wed 11/411:55 am -
1 stop31h 20m
Deal found 8/11$731
This KAYAK deal was found by Cheapflights users on 8/11. 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 10/182:20 pm -
2 stops27h 25m
Thu 11/56:05 am -
2 stops40h 07m
Deal found 8/11$733
This Iberia deal was found by Cheapflights users on 8/11. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2012:32 pm -
2 stops18h 18m
Mon 11/28:45 pm -
2 stops30h 08m
Deal found 8/11$738
This KAYAK deal was found by Cheapflights users on 8/11. 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 10/175:58 pm -
2 stops36h 47m
Wed 11/45:00 am -
2 stops23h 39m
Deal found 8/11$743
This KAYAK deal was found by Cheapflights users on 8/11. 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 10/175:58 pm -
2 stops36h 47m
Thu 11/56:05 am -
2 stops40h 07m
Deal found 8/11$745
This American Airlines deal was found by Cheapflights users on 8/11. 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.
Tue 10/136:19 pm -
2 stops16h 16m
Thu 10/226:35 am -
2 stops20h 00m
Deal found 8/11$746

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 August 15, 2026.

Round-trip from

$714
(United Airlines)

One-way from

$449
(oojo)
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 August 15, 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 Dayton - LIS Lisbon Humberto Delgado

DAYLIS

Dayton

Wed 10/21

7:33 pm-10:30 am

1 stop9h 57m

Lisbon Humberto Delgado

Tue 11/3

5:00 am-11:39 pm

2 stops23h 39m

$714

DaytonPorto

DAY Dayton - OPO Porto

DAYOPO

Dayton

Tue 12/8

1:45 pm-9:30 am

2 stops14h 45m

Porto

Fri 12/11

6:00 am-11:44 pm

2 stops22h 44m

$750

DaytonLisbon

DAY Dayton - LIS Lisbon Humberto Delgado

DAYLIS

Dayton

Thu 12/3

2:44 pm-10:20 am

1 stop14h 36m

Lisbon Humberto Delgado

Fri 12/11

5:00 am-6:41 pm

2 stops18h 41m

$764

DaytonLisbon

DAY Dayton - LIS Lisbon Humberto Delgado

DAYLIS

Dayton

Tue 10/20

2:55 pm-9:20 am

2 stops37h 25m

Lisbon Humberto Delgado

Mon 11/2

5:00 am-7:13 pm

2 stops19h 13m

$767

DaytonLisbon

DAY Dayton - LIS Lisbon Humberto Delgado

DAYLIS

Dayton

Fri 12/4

1:45 pm-10:20 am

2 stops15h 35m

Lisbon Humberto Delgado

Fri 12/11

5:00 am-6:41 pm

2 stops18h 41m

$768

DaytonLisbon

DAY Dayton - LIS Lisbon Humberto Delgado

DAYLIS

Dayton

Sun 10/11

10:22 am-10:30 am

1 stop19h 08m

Lisbon Humberto Delgado

Thu 10/22

5:05 am-8:19 pm

2 stops20h 14m

$775

DaytonLisbon

DAY Dayton - LIS Lisbon Humberto Delgado

DAYLIS

Dayton

Sun 10/11

6:00 am-8:00 am

2 stops21h 00m

Lisbon Humberto Delgado

Fri 10/23

5:00 am-10:38 am

2 stops34h 38m

$780

DaytonLisbon

DAY Dayton - LIS Lisbon Humberto Delgado

DAYLIS

Dayton

Thu 10/15

10:22 am-10:30 am

1 stop19h 08m

Lisbon Humberto Delgado

Thu 10/22

5:05 am-8:19 pm

2 stops20h 14m

$795

DaytonLisbon

DAY Dayton - LIS Lisbon Humberto Delgado

DAYLIS

Dayton

Thu 10/15

10:22 am-10:30 am

1 stop19h 08m

Lisbon Humberto Delgado

Fri 10/23

10:25 am-9:47 am

2 stops28h 22m

$811

DaytonLisbon

DAY Dayton - LIS Lisbon Humberto Delgado

DAYLIS

Dayton

Sun 2/7

2:44 pm-8:10 am

2 stops12h 26m

Lisbon Humberto Delgado

Tue 2/9

11:20 am-11:03 am

2 stops28h 43m

$812

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/15

Showing 1-10 of 18 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 9h 57m. United Airlines provides one of the quickest options available for as low as $714. 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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