HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Portugal

$364+ 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 1/11. Fares are subject to change and may not be available on all flights or dates of travel.
DAY — LIS
nov. 28 — dic. 51
vie. 11/28
vie. 12/5
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Dayton to Portugal with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Find 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 octubre 29, 2025.

This Rumbo deal was found by Cheapflights users on 10/29. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 11/177:45 pmDAY - LIS
2 stops22h 45mLufthansa
mié. 12/35:00 amLIS - DAY
2 stops19h 17mLufthansa
Deal found 10/29$531
This United Airlines deal was found by Cheapflights users on 10/29. 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.
lun. 11/177:45 pmDAY - LIS
1 stop9h 30mUnited Airlines
mié. 12/35:00 amLIS - DAY
2 stops23h 30mUnited Airlines
Deal found 10/29$533
This KAYAK deal was found by Cheapflights users on 10/28. 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.
vie. 11/287:45 pmDAY - OPO
2 stops22h 55mLufthansa
mié. 12/36:00 amOPO - DAY
2 stops22h 30mLufthansa
Deal found 10/28$539
This Delta deal was found by Cheapflights users on 10/28. 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.
mar. 11/256:00 amDAY - OPO
2 stops23h 30mDelta
mié. 12/311:15 amOPO - DAY
2 stops40h 56mDelta
Deal found 10/28$541
This United Airlines deal was found by Cheapflights users on 10/28. 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.
mié. 11/262:50 pmDAY - OPO
2 stops13h 40mUnited Airlines
mié. 12/312:30 pmOPO - DAY
2 stops36h 39mUnited Airlines
Deal found 10/28$543
This KAYAK deal was found by Cheapflights users on 10/28. 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.
vie. 11/287:45 pmDAY - OPO
2 stops22h 55mLufthansa
mar. 12/21:45 pmOPO - DAY
2 stops38h 45mLufthansa
Deal found 10/28$551
This United Airlines deal was found by Cheapflights users on 10/28. 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.
mar. 11/252:50 pmDAY - OPO
2 stops13h 40mUnited Airlines
mar. 12/212:30 pmOPO - DAY
2 stops40h 00mUnited Airlines
Deal found 10/28$557
This Delta deal was found by Cheapflights users on 10/28. 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.
lun. 11/246:00 amDAY - OPO
2 stops23h 30mDelta
mié. 12/311:15 amOPO - DAY
2 stops40h 56mDelta
Deal found 10/28$591
This United Airlines deal was found by Cheapflights users on 10/28. 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.
dom. 11/232:50 pmDAY - OPO
2 stops13h 40mUnited Airlines
mié. 12/312:30 pmOPO - DAY
2 stops36h 39mUnited Airlines
Deal found 10/28$593
This United Airlines deal was found by Cheapflights users on 10/28. 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.
dom. 11/232:50 pmDAY - OPO
2 stops13h 40mUnited Airlines
mar. 12/212:30 pmOPO - DAY
2 stops36h 39mUnited Airlines
Deal found 10/28$607
This Delta deal was found by Cheapflights users on 10/28. 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.
mar. 11/256:00 amDAY - OPO
2 stops23h 30mDelta
lun. 12/111:25 amOPO - DAY
2 stops52h 05mDelta
Deal found 10/28$645
This Delta deal was found by Cheapflights users on 10/28. 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.
jue. 11/274:10 pmDAY - OPO
2 stops18h 15mDelta
lun. 12/111:25 amOPO - DAY
2 stops52h 05mDelta
Deal found 10/28$651

Cheap flight deals from Dayton to Portugal

Keep the following information in mind while searching for Dayton to Portugal flight deals. Data was last updated octubre 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$531
(Rumbo)

One-way from

$364
(Expedia)

Popular in

May

Cheapest in

February

Average price

$1,286
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.
Search Deals
From Dayton to Portugal
Search Deals
One-way flight from Dayton to Portugal
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($208 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($46 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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 octubre 29, 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

lun. 11/17

7:45 pm-10:15 am

1 stop9h 30m

Lisbon Humberto Delgado

mié. 12/3

5:00 am-11:30 pm

2 stops23h 30m

$533

DaytonPorto

DAY - OPO

DAYOPO

Dayton

mar. 11/25

6:00 am-10:30 am

2 stops23h 30m

Porto

mié. 12/3

11:15 am-11:11 pm

2 stops40h 56m

$541

DaytonPorto

DAY - OPO

DAYOPO

Dayton

jue. 11/27

2:50 pm-9:30 am

2 stops13h 40m

Porto

mié. 12/3

12:30 pm-8:09 pm

2 stops36h 39m

$543

DaytonPorto

DAY - OPO

DAYOPO

Dayton

vie. 11/28

7:45 pm-11:40 pm

2 stops22h 55m

Porto

mar. 12/2

1:45 pm-11:30 pm

2 stops38h 45m

$551

DaytonPorto

DAY - OPO

DAYOPO

Dayton

mié. 11/26

7:00 am-9:30 am

2 stops21h 30m

Porto

mar. 12/2

12:30 pm-8:09 pm

2 stops36h 39m

$557

DaytonPorto

DAY - OPO

DAYOPO

Dayton

jue. 11/27

10:27 am-9:30 am

2 stops18h 03m

Porto

mar. 12/2

12:30 pm-11:30 pm

2 stops40h 00m

$557

DaytonPorto

DAY - OPO

DAYOPO

Dayton

mar. 11/25

2:50 pm-9:30 am

2 stops13h 40m

Porto

mar. 12/2

12:30 pm-11:30 pm

2 stops40h 00m

$557

DaytonPorto

DAY - OPO

DAYOPO

Dayton

lun. 11/24

6:00 am-10:30 am

2 stops23h 30m

Porto

mié. 12/3

11:15 am-11:11 pm

2 stops40h 56m

$591

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

mié. 3/25

2:10 pm-8:10 am

2 stops14h 00m

Lisbon Humberto Delgado

mar. 3/31

5:05 am-8:31 pm

2 stops20h 26m

$593

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

mié. 3/25

11:00 am-8:10 am

2 stops17h 10m

Lisbon Humberto Delgado

mié. 4/1

7:25 am-8:31 pm

2 stops18h 06m

$593

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 26 results
1
2
3

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 $534). Flying from Dayton to Portugal in June is currently the most expensive (average of $975). 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 octubre 29, 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 octubre 29, 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
8,999 reviews

Comfort

7.3

Overall

7.4

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000
United Airlines
7.4
Good
8,999 reviews
United Airlines
7.4
Good
8,999 reviews

Comfort

7.3

Overall

7.4

Food

6.6

Crew

8.1

Entertainment

7.1

Boarding

7.7

Reviews

1 / 20
2.0
Mediocre

Sebrena,Oct 2025

IAH - RSW

The worst that I have ever experienced in my life so bad if it was free I'm not ever going to use your Airline again I dont believe ..... very disappointed 😞 😔0000000000000

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 $533. 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 cheapest airlines to fly from Dayton to Portugal one-way?

    To fly one-way, consider booking your trip with British Airways, which is currently one of the cheapest options available, starting at $364. American Airlines flights start at $367 while deals on Brussels Airlines start at $449 one-way.

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

    Most travelers choose Dayton - Porto, Dayton - Lisbon Humberto Delgado 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 $534). Flying from Dayton to Portugal in June is currently the most expensive (average of $975). 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Dayton to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
Detroit to Heathrow flights
Detroit to Frankfurt flights
Detroit to Charles de Gaulle flights
Detroit to Istanbul flights
Cincinnati to Heathrow flights
Pittsburgh to Heathrow flights
Detroit to Gatwick flights
Detroit to Amsterdam flights
Detroit to Leonardo da Vinci/Fiumicino flights
Detroit to London City flights
Cleveland to Dublin flights
Detroit to Orly flights
Pittsburgh to Gatwick flights
Columbus to Heathrow flights
Cincinnati to Charles de Gaulle flights
Cincinnati to Gatwick flights
Detroit to Sabiha Gokcen flights
Detroit to Dublin flights
Pittsburgh to London City flights
Cleveland to Heathrow flights
Detroit to Lisbon flights
Cincinnati to London City flights
Detroit to Madrid flights
Columbus to Gatwick flights
Cleveland to Leonardo da Vinci/Fiumicino flights
Detroit to Barcelona-El Prat flights
Detroit to Edinburgh flights
Detroit to Athens flights
Columbus to Charles de Gaulle flights
Cincinnati to Dublin flights
Pittsburgh to Charles de Gaulle flights
Cleveland to Gatwick flights
Cleveland to Charles de Gaulle flights
Pittsburgh to Dublin flights
Detroit to Malpensa flights
Columbus to Leonardo da Vinci/Fiumicino flights
Detroit to Vicenza flights
Detroit to Zurich flights
Cincinnati to Frankfurt flights
Pittsburgh to Leonardo da Vinci/Fiumicino flights
Detroit to Keflavik Intl flights
Cleveland to London City flights
Cincinnati to Istanbul flights
Pittsburgh to Orly flights
Columbus to Istanbul flights
Detroit to Stansted flights
Cincinnati to Orly flights
Columbus to London City flights
Cleveland to Lisbon flights
Cleveland to Orly flights

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 octubre 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$575Average$942FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.