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Cheap flights from Dayton to Portugal from $293

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 7/20. 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.
Iberia Logo
12:35 pm - 8:05 pm
DAY
-
LIS
26h 30m
2 stops
Iberia Logo
6:35 am - 10:18 pm
LIS
-
DAY
20h 43m
2 stops
$528Iberia
Tue, Apr 14 - Tue, Apr 21
United Airlines Logo
2:50 pm - 3:35 pm
DAY
-
LIS
19h 45m
2 stops
United Airlines Logo
12:20 pm - 2:15 pm
LIS
-
DAY
30h 55m
1 stop
$635United Airlines
Tue, Apr 14 - Tue, Apr 21
Air France Logo
2:55 pm - 3:25 pm
DAY
-
OPO
19h 30m
2 stops
Air France Logo
5:55 am - 11:15 pm
OPO
-
DAY
22h 20m
2 stops
$663Air France
Tue, Aug 18 - Wed, Sep 2
British Airways Logo
6:39 pm - 6:10 pm
DAY
-
LIS
18h 31m
2 stops
British Airways Logo
7:20 am - 10:17 pm
LIS
-
DAY
19h 57m
2 stops
$672British Airways
Thu, Apr 9 - Thu, Apr 16
British Airways Logo
6:39 pm - 6:10 pm
DAY
-
LIS
18h 31m
2 stops
British Airways Logo
11:05 am - 9:38 pm
LIS
-
DAY
15h 33m
1 stop
$678British Airways
Thu, Apr 9 - Thu, Apr 16
Multiple Airlines Logo
11:05 am - 10:30 am
DAY
-
OPO
18h 25m
2 stops
Multiple Airlines Logo
5:55 am - 11:15 pm
OPO
-
DAY
22h 20m
2 stops
$683Multiple Airlines
Tue, Aug 18 - Wed, Sep 2
United Airlines Logo
10:20 am - 7:00 am
DAY
-
OPO
15h 40m
2 stops
United Airlines Logo
2:25 pm - 6:56 pm
OPO
-
DAY
33h 31m
2 stops
$693United Airlines
Tue, Aug 18 - Wed, Sep 2
Multiple Airlines Logo
2:55 pm - 10:30 am
DAY
-
OPO
14h 35m
2 stops
Multiple Airlines Logo
5:55 am - 11:15 pm
OPO
-
DAY
22h 20m
2 stops
$713Multiple Airlines
Tue, Aug 18 - Wed, Sep 2
American Airlines Logo
6:00 am - 9:05 am
DAY
-
LIS
22h 05m
1 stop
American Airlines Logo
11:05 am - 9:38 pm
LIS
-
DAY
15h 33m
1 stop
$846American Airlines
Thu, Apr 9 - Thu, Apr 16
Air France Logo
11:20 am - 4:30 pm
DAY
-
PDL
25h 10m
2 stops
Air France Logo
7:55 am - 11:15 pm
PDL
-
DAY
19h 20m
2 stops
$7,933Air France
Mon, Jun 1 - Sat, Jun 13

United Airlines flights from Dayton to Portugal

Our best United Airlines deals on Dayton to Portugal flight tickets
United Airlines
Apr 14
DAY2:50 pmDayton
19h 45m
2 stops
LIS3:35 pmLisbon Humberto Delgado
Apr 21
LIS12:20 pmLisbon Humberto Delgado
30h 55m
1 stop
DAY2:15 pmDayton
$635
United Airlines
Aug 18
DAY10:20 amDayton
15h 40m
2 stops
OPO7:00 amPorto
Sep 2
OPO2:25 pmPorto
33h 31m
2 stops
DAY6:56 pmDayton
$693
United Airlines
Mar 3
DAY2:57 pmDayton
14h 18m
1 stop
LIS10:15 amLisbon Humberto Delgado
Mar 19
LIS5:00 amLisbon Humberto Delgado
21h 08m
2 stops
DAY10:08 pmDayton
$765

British Airways flights from Dayton to Portugal

Our best British Airways deals on Dayton to Portugal flight tickets
British Airways
Apr 9
DAY6:39 pmDayton
18h 31m
2 stops
LIS6:10 pmLisbon Humberto Delgado
Apr 16
LIS7:20 amLisbon Humberto Delgado
19h 57m
2 stops
DAY10:17 pmDayton
$672
British Airways
Apr 9
DAY6:39 pmDayton
18h 31m
2 stops
LIS6:10 pmLisbon Humberto Delgado
Apr 16
LIS11:05 amLisbon Humberto Delgado
15h 33m
1 stop
DAY9:38 pmDayton
$678
British Airways
Mar 3
DAY12:41 pmDayton
21h 04m
2 stops
LIS2:45 pmLisbon Humberto Delgado
Mar 19
LIS10:55 amLisbon Humberto Delgado
14h 29m
1 stop
DAY9:24 pmDayton
$754

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 March 1, 2026.
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

Tue 4/14

12:35 pm-8:05 pm

2 stops26h 30m

Lisbon Humberto Delgado

Tue 4/21

6:35 am-10:18 pm

2 stops20h 43m

$528

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

Tue 4/14

2:50 pm-3:35 pm

2 stops19h 45m

Lisbon Humberto Delgado

Tue 4/21

12:20 pm-2:15 pm

1 stop30h 55m

$635

DaytonPorto

DAY - OPO

DAYOPO

Dayton

Tue 8/18

2:55 pm-3:25 pm

2 stops19h 30m

Porto

Wed 9/2

5:55 am-11:15 pm

2 stops22h 20m

$663

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

Thu 4/9

6:39 pm-6:10 pm

2 stops18h 31m

Lisbon Humberto Delgado

Thu 4/16

7:20 am-10:17 pm

2 stops19h 57m

$672

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

Thu 4/9

6:39 pm-6:10 pm

2 stops18h 31m

Lisbon Humberto Delgado

Thu 4/16

11:05 am-9:38 pm

1 stop15h 33m

$678

DaytonPorto

DAY - OPO

DAYOPO

Dayton

Tue 8/18

11:05 am-10:30 am

2 stops18h 25m

Porto

Wed 9/2

5:55 am-11:15 pm

2 stops22h 20m

$683

DaytonPorto

DAY - OPO

DAYOPO

Dayton

Tue 8/18

10:20 am-7:00 am

2 stops15h 40m

Porto

Wed 9/2

2:25 pm-6:56 pm

2 stops33h 31m

$693

DaytonPorto

DAY - OPO

DAYOPO

Dayton

Tue 8/18

2:55 pm-10:30 am

2 stops14h 35m

Porto

Wed 9/2

5:55 am-11:15 pm

2 stops22h 20m

$713

DaytonLisbon

DAY - LIS

DAYLIS

Dayton

Thu 4/9

6:00 am-9:05 am

1 stop22h 05m

Lisbon Humberto Delgado

Thu 4/16

11:05 am-9:38 pm

1 stop15h 33m

$846

DaytonPonta Delgada

DAY - PDL

DAYPDL

Dayton

Mon 6/1

11:20 am-4:30 pm

2 stops25h 10m

Ponta Delgada Nordela

Sat 6/13

7:55 am-11:15 pm

2 stops19h 20m

$7,933

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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

Can stopping save me money on Dayton to Portugal flights?

You could potentially save up to 44% 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

Fastest flight time

14h 18m

Direct flights

None
The fastest flight from Dayton to Portugal takes 14h 18m
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 $604Free CancellationRating
7.4
9,370 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.

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Find better results for your trip to Portugal

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Popular flights according to clicks in the last 7 days on momondo
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