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Cheap flights from Dayton to Portugal from $367

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 Portugal 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.
1 adult
0 bags

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Find the cheapest flights from Dayton to Portugal

Cheap round-trip flights

Enter your travel dates to find the best prices.
Lufthansa Logo
7:45 pm - 11:30 pmDAY-LIS
22h 45m2 stops
Lufthansa Logo
5:00 am - 7:17 pmLIS-DAY
19h 17m2 stops
$531Lufthansa
Find Deal
Mon, Nov 17 - Wed, Dec 3
United Airlines Logo
7:45 pm - 10:15 amDAY-LIS
9h 30m1 stop
United Airlines Logo
5:00 am - 11:30 pmLIS-DAY
23h 30m2 stops
$533United Airlines
Find Deal
Mon, Nov 17 - Wed, Dec 3
United Airlines Logo
7:45 pm - 10:15 amDAY-LIS
9h 30m1 stop
United Airlines Logo
11:55 am - 7:17 pmLIS-DAY
12h 22m1 stop
$547United Airlines
Find Deal
Mon, Nov 17 - Wed, Dec 3
Delta Logo
6:40 pm - 5:30 pmDAY-LIS
18h 50m2 stops
Delta Logo
5:40 am - 5:51 pmLIS-DAY
17h 11m2 stops
$602Delta
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Wed, Mar 25 - Thu, Apr 2
Delta Logo
2:53 pm - 5:30 pmDAY-LIS
22h 37m2 stops
Delta Logo
11:40 am - 10:38 amLIS-DAY
27h 58m2 stops
$709Delta
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Wed, Mar 25 - Mon, Apr 6
KLM Logo
6:40 pm - 6:10 pmDAY-OPO
18h 30m2 stops
KLM Logo
4:20 pm - 11:16 pmOPO-DAY
35h 56m2 stops
$887KLM
Find Deal
Wed, Apr 1 - Sun, Apr 5
Multiple Airlines Logo
2:44 pm - 9:45 pmDAY-LIS
27h 01m2 stops
Multiple Airlines Logo
11:05 am - 8:30 pmLIS-DAY
14h 25m1 stop
$934Multiple Airlines
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Sat, Mar 28 - Fri, Apr 3
Multiple Airlines Logo
11:00 am - 7:20 amDAY-LIS
16h 20m2 stops
Multiple Airlines Logo
4:25 pm - 11:29 pmLIS-DAY
36h 04m2 stops
$967Multiple Airlines
Find Deal
Sat, Mar 28 - Fri, Apr 3
British Airways Logo
7:26 pm - 9:05 amDAY-LIS
33h 39m2 stops
British Airways Logo
11:05 am - 8:30 pmLIS-DAY
14h 25m1 stop
$987British Airways
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Sat, Mar 28 - Fri, Apr 3
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
Find Deal
Thu, Nov 27 - Thu, Jan 1

United Airlines flights from Dayton to Portugal

Our best United Airlines deals on Dayton to Portugal flight tickets
United Airlines
Nov 17
DAY7:45 pmDayton
9h 30m
1 stop
LIS10:15 amLisbon Humberto Delgado
Dec 3
LIS5:00 amLisbon Humberto Delgado
23h 30m
2 stops
DAY11:30 pmDayton
$533
Find similar
United Airlines
Nov 17
DAY7:45 pmDayton
9h 30m
1 stop
LIS10:15 amLisbon Humberto Delgado
Dec 3
LIS11:55 amLisbon Humberto Delgado
12h 22m
1 stop
DAY7:17 pmDayton
$547
Find similar
United Airlines
Mar 25
DAY11:00 amDayton
17h 10m
2 stops
LIS8:10 amLisbon Humberto Delgado
Apr 1
LIS7:25 amLisbon Humberto Delgado
18h 06m
2 stops
DAY8:31 pmDayton
$593
Find similar

Lufthansa flights from Dayton to Portugal

Our best Lufthansa deals on Dayton to Portugal flight tickets
Lufthansa
Nov 17
DAY7:45 pmDayton
22h 45m
2 stops
LIS11:30 pmLisbon Humberto Delgado
Dec 3
LIS5:00 amLisbon Humberto Delgado
19h 17m
2 stops
DAY7:17 pmDayton
$531
Find similar
Lufthansa
Mar 26
DAY2:10 pmDayton
28h 40m
2 stops
LIS10:50 pmLisbon Humberto Delgado
Apr 1
LIS5:05 amLisbon Humberto Delgado
23h 24m
2 stops
DAY11:29 pmDayton
$669
Find similar
Lufthansa
Mar 26
DAY2:10 pmDayton
28h 40m
2 stops
LIS10:50 pmLisbon Humberto Delgado
Apr 6
LIS4:20 pmLisbon Humberto Delgado
31h 21m
2 stops
DAY6:41 pmDayton
$795
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated October 31, 2025.
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

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

Mon 11/17

7:45 pm-11:30 pm

2 stops22h 45m

Lisbon Humberto Delgado

Wed 12/3

5:00 am-7:17 pm

2 stops19h 17m

$531

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

Mon 11/17

7:45 pm-10:15 am

1 stop9h 30m

Lisbon Humberto Delgado

Wed 12/3

5:00 am-11:30 pm

2 stops23h 30m

$533

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

Mon 11/17

7:45 pm-10:15 am

1 stop9h 30m

Lisbon Humberto Delgado

Wed 12/3

11:55 am-7:17 pm

1 stop12h 22m

$547

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

Wed 3/25

6:40 pm-5:30 pm

2 stops18h 50m

Lisbon Humberto Delgado

Thu 4/2

5:40 am-5:51 pm

2 stops17h 11m

$602

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

Wed 3/25

2:53 pm-5:30 pm

2 stops22h 37m

Lisbon Humberto Delgado

Mon 4/6

11:40 am-10:38 am

2 stops27h 58m

$709

DaytonPorto

DAY - OPO

DAYOPO

Dayton

Wed 4/1

6:40 pm-6:10 pm

2 stops18h 30m

Porto

Sun 4/5

4:20 pm-11:16 pm

2 stops35h 56m

$887

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

Sat 3/28

2:44 pm-9:45 pm

2 stops27h 01m

Lisbon Humberto Delgado

Fri 4/3

11:05 am-8:30 pm

1 stop14h 25m

$934

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

Sat 3/28

11:00 am-7:20 am

2 stops16h 20m

Lisbon Humberto Delgado

Fri 4/3

4:25 pm-11:29 pm

2 stops36h 04m

$967

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

Sat 3/28

7:26 pm-9:05 am

2 stops33h 39m

Lisbon Humberto Delgado

Fri 4/3

11:05 am-8:30 pm

1 stop14h 25m

$987

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

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 17 resultsSorted by cheapest first
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See travel insights to Portugal from

How to get the cheapest flight ticket from Dayton to Portugal

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 day to depart on your flight to Portugal?

According to our data, Monday is the cheapest day to fly to Portugal from Dayton. The lowest ticket price found for a Monday departure recently was $646. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Portugal is Friday, with ticket prices averaging around $1,346.

What is the cheapest time of day to depart on your flight to Portugal?

Our most recent data shows that the best time of day to fly to Portugal is in the morning. Flights from Dayton to Portugal during this time can be as low as $801. At noon is when there is more demand to fly to Portugal, so prices are often more expensive at around $1,308 per ticket.

Can stopping save me money on Dayton to Portugal flights?

You could potentially save up to 50% on your flight if you consider stops on a Dayton to Portugal flight.

Cheap Dayton to Portugal flight deals and tips

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

Direct flights

None
There are no direct flights from Dayton to Portugal. There are no popular flight routes from Dayton to Portugal.
Search flight deals

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

    Prices for flights from Dayton Airport to Portugal refresh daily.

  • How many operators does momondo search for flights from Dayton Airport to Portugal?

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Dayton Airport to Portugal.

  • What documentation or ID do you need to fly to Portugal?

    The necessary travel and health documents for your Portugal 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.

Best airlines flying from Dayton to Portugal

Compare and see reviews for airlines that fly from Dayton to Portugal with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $575Free CancellationRating
7.4
8,998 reviews
Search United Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Dayton to Portugal. momondo saves you time and could save you money on your trip.

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

Yes. momondo enables you to select and highlight flights to Portugal from Dayton with this policy.

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

Once you have performed a search for Dayton to Portugal flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes momondo offers price alerts on flights to Portugal from Dayton. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Portugal trip

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Find better results for your trip to Portugal

Popular cities in Portugal

Popular flights according to clicks in the last 7 days on momondo
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Flights to Porto Santofrom $770
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