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Portugal

$488+ 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 6/14. Fares are subject to change and may not be available on all flights or dates of travel.
DAY — LIS
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
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 January 29, 2026.

This FlightHub deal was found by Cheapflights users on 1/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/35:49 pm
DAY
-
LIS
2 stops24h 41m
Lufthansa
Thu 3/196:10 am
LIS
-
DAY
2 stops21h 33m
Lufthansa
Deal found 1/27$493
This United Airlines deal was found by Cheapflights users on 1/27. 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.
Mon 3/99:45 am
DAY
-
LIS
1 stop20h 30m
United Airlines
Tue 3/175:00 am
LIS
-
DAY
2 stops22h 43m
United Airlines
Deal found 1/27$496
This United Airlines deal was found by Cheapflights users on 1/27. 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 3/1010:50 am
DAY
-
LIS
2 stops17h 20m
United Airlines
Thu 3/195:00 am
LIS
-
DAY
2 stops22h 43m
United Airlines
Deal found 1/27$500
This United Airlines deal was found by Cheapflights users on 1/28. 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.
Wed 2/252:10 pm
DAY
-
LIS
2 stops13h 00m
United Airlines
Sun 3/15:00 am
LIS
-
DAY
2 stops22h 14m
United Airlines
Deal found 1/28$501
This United Airlines deal was found by Cheapflights users on 1/27. 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.
Mon 3/99:45 am
DAY
-
LIS
1 stop20h 30m
United Airlines
Wed 3/1811:55 am
LIS
-
DAY
1 stop30h 27m
United Airlines
Deal found 1/27$508
This Delta deal was found by Cheapflights users on 1/27. 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 3/106:00 am
DAY
-
LIS
2 stops22h 00m
Delta
Mon 3/165:30 am
LIS
-
DAY
2 stops33h 16m
Delta
Deal found 1/27$509
This United Airlines deal was found by Cheapflights users on 1/27. 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 3/1010:50 am
DAY
-
LIS
2 stops17h 20m
United Airlines
Wed 3/1811:55 am
LIS
-
DAY
1 stop30h 27m
United Airlines
Deal found 1/27$513
This Delta deal was found by Cheapflights users on 1/27. 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 3/86:34 pm
DAY
-
LIS
2 stops33h 26m
Delta
Mon 3/165:30 am
LIS
-
DAY
2 stops33h 16m
Delta
Deal found 1/27$514
This United Airlines deal was found by Cheapflights users on 1/27. 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.
Mon 3/92:57 pm
DAY
-
LIS
2 stops16h 33m
United Airlines
Thu 3/195:00 am
LIS
-
DAY
2 stops18h 38m
United Airlines
Deal found 1/27$516
This United Airlines deal was found by Cheapflights users on 1/27. 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 3/82:07 pm
DAY
-
LIS
2 stops17h 28m
United Airlines
Tue 3/1711:55 am
LIS
-
DAY
1 stop30h 27m
United Airlines
Deal found 1/27$528
This Delta deal was found by Cheapflights users on 1/27. 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.
Wed 3/1111:31 am
DAY
-
LIS
2 stops16h 29m
Delta
Wed 3/185:00 am
LIS
-
DAY
2 stops21h 48m
Delta
Deal found 1/27$578
This Delta deal was found by Cheapflights users on 1/27. 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.
Mon 3/92:35 pm
DAY
-
LIS
2 stops22h 55m
Delta
Mon 3/165:30 am
LIS
-
DAY
2 stops33h 16m
Delta
Deal found 1/27$583

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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$493
(FlightHub)

One-way from

$488
(Delta)
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

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 January 29, 2026.
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

Tue 3/3

5:49 pm-11:30 pm

2 stops24h 41m

Lisbon Humberto Delgado

Thu 3/19

6:10 am-11:43 pm

2 stops21h 33m

$493

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

Tue 3/3

2:57 pm-10:15 am

1 stop14h 18m

Lisbon Humberto Delgado

Thu 3/19

5:00 am-7:38 pm

2 stops18h 38m

$496

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

Mon 3/9

9:45 am-10:15 am

1 stop20h 30m

Lisbon Humberto Delgado

Thu 3/19

5:00 am-7:38 pm

2 stops18h 38m

$496

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

Wed 2/25

2:57 pm-10:15 am

1 stop14h 18m

Lisbon Humberto Delgado

Sun 3/1

5:00 am-11:43 pm

2 stops23h 43m

$496

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

Mon 3/9

9:45 am-10:15 am

1 stop20h 30m

Lisbon Humberto Delgado

Tue 3/17

5:00 am-11:43 pm

2 stops22h 43m

$496

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

Tue 3/10

10:50 am-8:10 am

2 stops17h 20m

Lisbon Humberto Delgado

Wed 3/18

5:00 am-10:03 pm

2 stops21h 03m

$500

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

Tue 3/10

10:50 am-8:10 am

2 stops17h 20m

Lisbon Humberto Delgado

Thu 3/19

5:00 am-11:43 pm

2 stops22h 43m

$500

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

Mon 3/9

9:45 am-10:15 am

1 stop20h 30m

Lisbon Humberto Delgado

Wed 3/18

11:55 am-2:22 pm

1 stop30h 27m

$508

DaytonPorto

DAY - OPO

DAYOPO

Dayton

Sun 4/5

5:33 pm-4:00 pm

2 stops17h 27m

Porto

Sat 4/11

8:20 am-9:44 pm

2 stops18h 24m

$2,656

DaytonPorto

DAY - OPO

DAYOPO

Dayton

Sun 6/14

2:55 pm-10:30 am

2 stops14h 35m

$488

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

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, January is the cheapest month in which you can book a flight from Dayton to Portugal (average of $479). Flying from Dayton to Portugal in July is currently the most expensive (average of $811). 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.

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 January 29, 2026.
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
9,215 reviews

Boarding

7.7

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,215 reviews
United Airlines
7.4
Good
9,215 reviews

Boarding

7.7

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 14h 18m. Lufthansa provides one of the quickest options available for as low as $496. 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, January is the cheapest month in which you can book a flight from Dayton to Portugal (average of $479). Flying from Dayton to Portugal in July is currently the most expensive (average of $811). 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

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Alternative routes for Dayton to Portugal

See prices for flight routes from nearby airports that may be better suited for you.
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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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$534Average$1,052FlexibilityNo cancel feeOn-time69%

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