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Portugal

$348+ 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 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
DAY — LIS
Jun 15 — Jun 221
Mon 6/15
Mon 6/22
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 May 16, 2026.

This United Airlines deal was found by Cheapflights users on 5/11. 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 12/72:44 pm
DAY
-
LIS
1 stop14h 31m
United Airlines
Thu 12/105:00 am
LIS
-
DAY
2 stops18h 41m
United Airlines
Deal found 5/11$817
This United Airlines deal was found by Cheapflights users on 5/12. 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 11/97:45 pm
DAY
-
LIS
1 stop9h 30m
United Airlines
Wed 11/1111:55 am
LIS
-
DAY
1 stop11h 46m
United Airlines
Deal found 5/12$829
This United Airlines deal was found by Cheapflights users on 5/13. 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 8/1810:22 am
DAY
-
OPO
2 stops15h 38m
United Airlines
Wed 9/212:45 pm
OPO
-
DAY
2 stops27h 10m
United Airlines
Deal found 5/13$832
This American Airlines deal was found by Cheapflights users on 5/11. 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.
Wed 10/148:00 am
DAY
-
LIS
1 stop20h 05m
American Airlines
Wed 10/286:30 am
LIS
-
DAY
2 stops17h 14m
American Airlines
Deal found 5/11$836
This Orbitz deal was found by Cheapflights users on 5/11. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/142:00 pm
DAY
-
LIS
2 stops28h 25m
Iberia
Wed 10/286:30 am
LIS
-
DAY
2 stops18h 18m
Iberia
Deal found 5/11$853
This United Airlines deal was found by Cheapflights users on 5/11. 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 10/137:45 pm
DAY
-
LIS
1 stop9h 45m
United Airlines
Tue 10/275:00 am
LIS
-
DAY
2 stops22h 44m
United Airlines
Deal found 5/11$863
This Delta deal was found by Cheapflights users on 5/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:40 pm
DAY
-
LIS
2 stops18h 10m
Delta
Thu 10/2911:25 am
LIS
-
DAY
2 stops27h 02m
Delta
Deal found 5/11$875
This KAYAK deal was found by Cheapflights users on 5/11. 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.
Tue 10/132:44 pm
DAY
-
LIS
2 stops27h 01m
Lufthansa
Fri 10/305:00 am
LIS
-
DAY
2 stops41h 56m
Lufthansa
Deal found 5/11$876
This United Airlines deal was found by Cheapflights users on 5/11. 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 10/137:45 pm
DAY
-
LIS
1 stop9h 45m
United Airlines
Fri 10/3011:20 am
LIS
-
DAY
2 stops26h 27m
United Airlines
Deal found 5/11$877
This United Airlines deal was found by Cheapflights users on 5/11. 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.
Sat 5/167:35 pm
DAY
-
OPO
2 stops37h 40m
United Airlines
Wed 5/206:00 am
OPO
-
DAY
2 stops17h 54m
United Airlines
Deal found 5/11$1,494
This FlightHub deal was found by Cheapflights users on 5/14. 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.
Sat 5/162:18 pm
DAY
-
OPO
2 stops28h 07m
Lufthansa
Wed 5/206:00 am
OPO
-
DAY
2 stops16h 08m
Lufthansa
Deal found 5/14$1,521

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 May 16, 2026.

Round-trip from

$829
(United Airlines)

One-way from

$348
(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 May 16, 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
Quickest round-trip

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

Mon 11/9

7:45 pm-10:15 am

1 stop9h 30m

Lisbon Humberto Delgado

Wed 11/11

11:55 am-6:41 pm

1 stop11h 46m

$829

DaytonPorto

DAY - OPO

DAYOPO

Dayton

Tue 8/18

7:15 am-7:00 am

2 stops18h 45m

Porto

Wed 9/2

12:45 pm-10:55 am

2 stops27h 10m

$832

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

Tue 10/13

10:20 am-9:20 am

2 stops18h 00m

Lisbon Humberto Delgado

Wed 10/28

5:00 am-10:23 pm

2 stops21h 23m

$866

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

Sat 10/17

10:20 am-10:35 am

1 stop19h 15m

Lisbon Humberto Delgado

Fri 10/30

11:55 am-9:47 am

1 stop25h 52m

$930

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

Sat 7/4

11:39 am-9:20 am

2 stops40h 41m

Lisbon Humberto Delgado

Wed 7/15

6:15 am-11:49 pm

2 stops22h 34m

$957
Cheapest one-way
Quickest one-way

DaytonPorto

DAY - OPO

DAYOPO

Dayton

Wed 11/4

11:05 am-9:05 am

2 stops17h 00m

$348

DaytonPorto

DAY - OPO

DAYOPO

Dayton

Tue 11/3

9:00 am-9:30 am

2 stops19h 30m

$348

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

Wed 10/14

10:20 am-10:30 am

1 stop19h 10m

$481

DaytonPorto

DAY - OPO

DAYOPO

Dayton

Sun 6/14

2:20 pm-4:00 pm

2 stops20h 40m

$844

DaytonPorto

DAY - OPO

DAYOPO

Dayton

Sun 6/14

11:23 am-10:25 am

2 stops18h 02m

$856

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/12

Showing 1-10 of 12 resultsSorted by cheapest first
1
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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 30m. United Airlines provides one of the quickest options available for as low as $829. The distance between Dayton and Portugal is about 3883 mi.

  • 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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