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Cheap flights from Dayton to Porto from $449

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Dayton to Porto departing on 1/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Cheap round-trip flights

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Lufthansa Logo
7:45 pm - 11:40 pmDAY-OPO
22h 55m2 stops
Lufthansa Logo
6:00 am - 11:30 pmOPO-DAY
22h 30m2 stops
$539Lufthansa
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Fri, Nov 28 - Wed, Dec 3
Delta Logo
6:00 am - 10:30 amDAY-OPO
23h 30m2 stops
Delta Logo
11:15 am - 11:11 pmOPO-DAY
40h 56m2 stops
$541Delta
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Tue, Nov 25 - Wed, Dec 3
United Airlines Logo
2:50 pm - 9:30 amDAY-OPO
13h 40m2 stops
United Airlines Logo
12:30 pm - 8:09 pmOPO-DAY
36h 39m2 stops
$543United Airlines
Find Deal
Wed, Nov 26 - Wed, Dec 3
Lufthansa Logo
7:45 pm - 11:40 pmDAY-OPO
22h 55m2 stops
Lufthansa Logo
1:45 pm - 11:30 pmOPO-DAY
38h 45m2 stops
$551Lufthansa
Find Deal
Fri, Nov 28 - Tue, Dec 2
United Airlines Logo
2:50 pm - 9:30 amDAY-OPO
13h 40m2 stops
United Airlines Logo
12:30 pm - 11:30 pmOPO-DAY
40h 00m2 stops
$557United Airlines
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Tue, Nov 25 - Tue, Dec 2
Multiple Airlines Logo
2:10 pm - 12:05 pmDAY-OPO
16h 55m2 stops
Multiple Airlines Logo
6:00 am - 8:15 pmOPO-DAY
43h 15m2 stops
$871Multiple Airlines
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Wed, Nov 26 - Sun, Nov 30
KLM Logo
4:10 pm - 3:25 pmDAY-OPO
18h 15m2 stops
KLM Logo
6:35 am - 9:02 pmOPO-DAY
19h 27m2 stops
$1,172KLM
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Thu, Nov 27 - Thu, Jan 1
KLM Logo
4:10 pm - 3:25 pmDAY-OPO
18h 15m2 stops
KLM Logo
6:35 am - 9:02 pmOPO-DAY
19h 27m2 stops
$1,199KLM
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Thu, Nov 27 - Thu, Jan 1
Multiple Airlines Logo
6:10 am - 11:45 amDAY-OPO
24h 35m2 stops
Multiple Airlines Logo
8:40 pm - 7:53 pmOPO-DAY
28h 13m2 stops
$2,046Multiple Airlines
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Thu, Nov 27 - Sat, Jan 3
Brussels Airlines Logo
2:50 pm - 12:05 pmDAY-OPO
16h 15m2 stops
Brussels Airlines Logo
12:55 pm - 7:01 pmOPO-DAY
35h 06m2 stops
$2,297Brussels Airlines
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Tue, Nov 25 - Sat, Nov 29

Lufthansa flights from Dayton to Porto

Our best Lufthansa deals on Dayton to Porto flight tickets
Lufthansa
Nov 28
DAY7:45 pmDayton
22h 55m
2 stops
OPO11:40 pmPorto
Dec 3
OPO6:00 amPorto
22h 30m
2 stops
DAY11:30 pmDayton
$539
Find similar
Lufthansa
Nov 28
DAY7:45 pmDayton
22h 55m
2 stops
OPO11:40 pmPorto
Dec 2
OPO1:45 pmPorto
38h 45m
2 stops
DAY11:30 pmDayton
$551
Find similar
Lufthansa
Nov 27
DAY2:50 pmDayton
17h 00m
2 stops
OPO12:50 pmPorto
Nov 30
OPO1:45 pmPorto
38h 58m
2 stops
DAY11:43 pmDayton
$1,352
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Delta flights from Dayton to Porto

Our best Delta deals on Dayton to Porto flight tickets
Delta
Nov 25
DAY6:00 amDayton
23h 30m
2 stops
OPO10:30 amPorto
Dec 3
OPO11:15 amPorto
40h 56m
2 stops
DAY11:11 pmDayton
$541
Find similar
Delta
Nov 24
DAY6:00 amDayton
23h 30m
2 stops
OPO10:30 amPorto
Dec 3
OPO11:15 amPorto
40h 56m
2 stops
DAY11:11 pmDayton
$591
Find similar
Delta
Nov 25
DAY6:00 amDayton
23h 30m
2 stops
OPO10:30 amPorto
Dec 1
OPO11:25 amPorto
52h 05m
2 stops
DAY10:30 amDayton
$645
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Dayton to Porto 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, momondo users made 832,500 searches. Data last updated October 30, 2025.
Use the filters below to find and compare flights from Dayton to Porto that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

DaytonPorto

DAY - OPO

DAYOPO

Dayton

Fri 11/28

7:45 pm-11:40 pm

2 stops22h 55m

Porto

Wed 12/3

6:00 am-11:30 pm

2 stops22h 30m

$539

DaytonPorto

DAY - OPO

DAYOPO

Dayton

Tue 11/25

6:00 am-10:30 am

2 stops23h 30m

Porto

Wed 12/3

11:15 am-11:11 pm

2 stops40h 56m

$541

DaytonPorto

DAY - OPO

DAYOPO

Dayton

Wed 11/26

2:50 pm-9:30 am

2 stops13h 40m

Porto

Wed 12/3

12:30 pm-8:09 pm

2 stops36h 39m

$543

DaytonPorto

DAY - OPO

DAYOPO

Dayton

Fri 11/28

7:45 pm-11:40 pm

2 stops22h 55m

Porto

Tue 12/2

1:45 pm-11:30 pm

2 stops38h 45m

$551

DaytonPorto

DAY - OPO

DAYOPO

Dayton

Tue 11/25

2:50 pm-9:30 am

2 stops13h 40m

Porto

Tue 12/2

12:30 pm-11:30 pm

2 stops40h 00m

$557

DaytonPorto

DAY - OPO

DAYOPO

Dayton

Wed 11/26

2:10 pm-12:05 pm

2 stops16h 55m

Porto

Sun 11/30

6:00 am-8:15 pm

2 stops43h 15m

$871

DaytonPorto

DAY - OPO

DAYOPO

Dayton

Thu 11/27

4:10 pm-3:25 pm

2 stops18h 15m

Porto

Thu 1/1

6:35 am-9:02 pm

2 stops19h 27m

$1,172

DaytonPorto

DAY - OPO

DAYOPO

Dayton

Thu 11/27

4:10 pm-3:25 pm

2 stops18h 15m

Porto

Thu 1/1

6:35 am-9:02 pm

2 stops19h 27m

$1,199

DaytonPorto

DAY - OPO

DAYOPO

Dayton

Thu 11/27

6:10 am-11:45 am

2 stops24h 35m

Porto

Sat 1/3

8:40 pm-7:53 pm

2 stops28h 13m

$2,046

DaytonPorto

DAY - OPO

DAYOPO

Dayton

Tue 11/25

2:50 pm-12:05 pm

2 stops16h 15m

Porto

Sat 11/29

12:55 pm-7:01 pm

2 stops35h 06m

$2,297

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 11 resultsSorted by cheapest first
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See travel insights to Porto from

How to get the cheapest flight ticket from Dayton to Porto

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Dayton to Porto?

Lufthansa is the most popular carrier operating from Dayton to Porto

What airlines fly to Porto?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Porto from Dayton according to our data. United Airlines is the first choice among our users, with 64% of people opting to fly with this airline when traveling to Porto. Keep in mind that there are 3 different airlines that fly to Porto on a routine basis, so you have a few additional options to choose from.

When to book flights from Dayton to Porto

Are you open to changing your travel dates? Check out the ideal times to fly from Dayton to Porto according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Dayton to Porto (DAY to OPO) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Dayton to Porto

Direct flights

None
There are no direct flights from Dayton to Porto. There are no popular flight routes from Dayton to Porto.
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  • How far is Dayton to Porto by plane?

    Dayton and Porto are 3837.7 mi apart from one another. By plane, this route typically takes 13h 40m.

  • When did momondo last update prices for flights from Dayton Airport to Porto Airport?

    Prices for flights from Dayton Airport to Porto Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Dayton Airport to Porto Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Dayton Airport to Porto Airport.

  • What documentation or ID do you need to fly to Porto Airport?

    The necessary travel and health documents for your Porto Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Porto?

Book flights to Porto if you plan to visit one of these locations
Vila Nova de Gaia
Coimbra
Aveiro
Braga
Matosinhos
Lamego
Esposende
Guimarães
Chaves
Espinho
Viseu
Ponte de Lima
Arcos de Valdevez
Pinhao
Curia
Penafiel
Mesao Frio
Mira
Baiao

Why use momondo?

Why should I use momondo to find a flight deal from Dayton to Porto?

It is quick and easy to find Dayton to Porto flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Porto that suits you.

Can I find flights from Dayton to Porto with flexible booking policies on momondo?

momondo does allow users to show only those flights to Porto from Dayton which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Dayton to Porto?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Dayton to Porto.

I’m not ready to book a flight from Dayton to Porto right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Dayton to Porto flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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