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Portugal

$342+ 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 1/28. Fares are subject to change and may not be available on all flights or dates of travel.
DAY — LIS
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
1 adult, Economy
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Cheap flight deals from Dayton to Portugal

Best flights from Dayton to Portugal
Discover carefully curated flight deals from Dayton to Portugal that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 15, 2025.

This United Airlines deal was found by Cheapflights users on 12/13. 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.
Fri 1/239:05 amDAY - LIS
2 stops18h 05mUnited Airlines
Tue 1/275:00 amLIS - DAY
2 stops19h 37mUnited Airlines
Deal found 12/13$499
This British Airways deal was found by Cheapflights users on 12/11. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/61:33 pmDAY - LIS
2 stops27h 52mBritish Airways
Tue 2/1011:05 amLIS - DAY
1 stop14h 33mBritish Airways
Deal found 12/11$703
This United Airlines deal was found by Cheapflights users on 12/11. 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.
Fri 2/610:24 amDAY - LIS
2 stops21h 56mUnited Airlines
Tue 2/105:00 amLIS - DAY
2 stops19h 37mUnited Airlines
Deal found 12/11$501
This United Airlines deal was found by Cheapflights users on 12/11. 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.
Fri 1/232:52 pmDAY - OPO
2 stops15h 48mUnited Airlines
Tue 1/276:00 amOPO - DAY
2 stops19h 22mUnited Airlines
Deal found 12/11$505
This Delta deal was found by Cheapflights users on 12/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/36:40 pmDAY - LIS
2 stops19h 05mDelta
Sun 6/145:40 amLIS - DAY
2 stops22h 35mDelta
Deal found 12/13$1,249
This British Airways deal was found by Cheapflights users on 12/13. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/231:33 pmDAY - LIS
2 stops17h 32mBritish Airways
Tue 1/2711:05 amLIS - DAY
1 stop14h 33mBritish Airways
Deal found 12/13$704
This United Airlines deal was found by Cheapflights users on 12/12. 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.
Thu 4/307:45 pmDAY - LIS
1 stop9h 45mUnited Airlines
Fri 5/81:00 pmLIS - DAY
2 stops31h 03mUnited Airlines
Deal found 12/12$692
This oojo deal was found by Cheapflights users on 12/12. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/31:58 pmDAY - LIS
2 stops22h 57mBritish Airways
Sun 6/145:10 pmLIS - DAY
2 stops34h 37mBritish Airways
Deal found 12/12$1,326

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 December 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$499
(United Airlines)

One-way from

$342
(Kiwi.com)
Provider with most accurate pricing for Dayton-Lisbon Humberto Delgado flight deals.
Search Deals
Provider most trusted by Cheapflights users for Dayton-Lisbon Humberto Delgado flights.
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From Dayton to Portugal
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One-way flight from Dayton to Portugal
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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 December 15, 2025.
Use the filters below to find and compare flights from Dayton to Portugal that are best for you.

Fly from

Dayton

Fly to

Portugal

Route

Depart

Return

Price

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

Fri 1/23

9:05 am-8:10 am

2 stops18h 05m

Lisbon Humberto Delgado

Tue 1/27

5:00 am-7:37 pm

2 stops19h 37m

$499

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

Fri 2/6

10:24 am-1:20 pm

2 stops21h 56m

Lisbon Humberto Delgado

Tue 2/10

5:00 am-7:37 pm

2 stops19h 37m

$501

DaytonPorto

DAY - OPO

DAYOPO

Dayton

Fri 1/23

2:52 pm-11:40 am

2 stops15h 48m

Porto

Tue 1/27

6:00 am-8:22 pm

2 stops19h 22m

$505

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

Thu 4/30

7:45 pm-10:30 am

1 stop9h 45m

Lisbon Humberto Delgado

Fri 5/8

1:00 pm-3:03 pm

2 stops31h 03m

$692

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

Fri 2/6

1:33 pm-10:25 pm

2 stops27h 52m

Lisbon Humberto Delgado

Tue 2/10

11:05 am-8:38 pm

1 stop14h 33m

$703

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

Fri 1/23

1:33 pm-12:05 pm

2 stops17h 32m

Lisbon Humberto Delgado

Tue 1/27

11:05 am-8:38 pm

1 stop14h 33m

$704

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

Wed 6/3

6:40 pm-6:45 pm

2 stops19h 05m

Lisbon Humberto Delgado

Sun 6/14

5:40 am-11:15 pm

2 stops22h 35m

$1,249

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

Wed 6/3

1:58 pm-5:55 pm

2 stops22h 57m

Lisbon Humberto Delgado

Sun 6/14

5:10 pm-10:47 pm

2 stops34h 37m

$1,326

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

Wed 1/28

2:04 pm-1:20 pm

2 stops18h 16m

$342

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

Fri 2/13

12:43 pm-10:25 pm

2 stops28h 42m

$357

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/12

Showing 1-10 of 19 results
1
2

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

What is the cheapest month to book a flight from Dayton to Portugal?

Currently, February is the cheapest month in which you can book a flight from Dayton to Portugal (average of $495). Flying from Dayton to Portugal in June is currently the most expensive (average of $899). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from DAY to PT?

Find hourly flight availability from Dayton to Portugal. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 15, 2025.

A simple way to save on the total cost of your ticket is to fly from Dayton to Portugal in the evening. If you’re flexible enough to do this you can expect to save up to 49% on your trip compared to booking a flight in the afternoon.

Reviews of airlines servicing Portugal

Get insights into the airlines that provide service to Portugal. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Portugal. Reviews last updated December 15, 2025.
Get a feel of what it's like to fly with United Airlines from Dayton to Portugal by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,092 reviews

Boarding

7.7

Entertainment

7.1

Crew

8.1

Overall

7.4

Comfort

7.3

Food

6.6

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.
United Airlines
7.4
Good
9,092 reviews
United Airlines
7.4
Good
9,092 reviews

Boarding

7.7

Entertainment

7.1

Crew

8.1

Overall

7.4

Comfort

7.3

Food

6.6

Reviews

1 / 20
10.0
Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

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 18h 05m. United Airlines provides one of the quickest options available for as low as $499. 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.

  • What is the cheapest month to book a flight from Dayton to Portugal?

    Currently, February is the cheapest month in which you can book a flight from Dayton to Portugal (average of $495). Flying from Dayton to Portugal in June is currently the most expensive (average of $899). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Dayton to Portugal

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Top airline flying from Dayton to Portugal

Discover the top airline that operate flights from Dayton to Portugal. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated December 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$575Average$942FlexibilityNo cancel feeOn-time69%

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