Latest deals
Insights
FAQs
Price Alerts

Cheap flights from Dayton to Portugal from $750

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Dayton to Portugal departing on 12/7. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Dayton to Portugal

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
1:45 pm - 9:30 amDAY  Dayton-OPO Porto
14h 45m2 stops Chicago O'Hare Intl Newark
United Airlines Logo
6:00 am - 6:41 pmOPO  Porto-DAY Dayton
17h 41m2 stops Frankfurt am Main Washington, D.C. Dulles Intl
$750United Airlines
Mon, Dec 7 - Fri, Dec 11
United Airlines Logo
7:33 pm - 10:30 amDAY  Dayton-LIS Lisbon Humberto Delgado
9h 57m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
5:05 am - 6:58 pmLIS  Lisbon Humberto Delgado-DAY Dayton
18h 53m2 stops Frankfurt am Main Washington, D.C. Dulles Intl
$766United Airlines
Mon, Sep 28 - Wed, Oct 14
American Airlines Logo
6:00 am - 9:05 amDAY  Dayton-LIS Lisbon Humberto Delgado
22h 05m1 stop Philadelphia
American Airlines Logo
8:55 am - 8:51 pmLIS  Lisbon Humberto Delgado-DAY Dayton
16h 56m2 stops Madrid Barajas Charlotte Douglas
$770American Airlines
Mon, Sep 28 - Wed, Oct 14
United Airlines Logo
10:22 am - 10:30 amDAY  Dayton-LIS Lisbon Humberto Delgado
19h 08m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
5:05 am - 9:47 amLIS  Lisbon Humberto Delgado-DAY Dayton
33h 42m2 stops Frankfurt am Main Washington, D.C. Dulles Intl
$775United Airlines
Tue, Sep 22 - Tue, Sep 29
United Airlines Logo
10:22 am - 8:20 amDAY  Dayton-LIS Lisbon Humberto Delgado
16h 58m2 stops Washington, D.C. Dulles Intl Newark
United Airlines Logo
12:20 pm - 10:57 amLIS  Lisbon Humberto Delgado-DAY Dayton
27h 37m2 stops Washington, D.C. Dulles Intl Chicago O'Hare Intl
$777United Airlines
Mon, Sep 28 - Wed, Oct 14
United Airlines Logo
7:33 pm - 10:30 amDAY  Dayton-LIS Lisbon Humberto Delgado
9h 57m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
12:20 pm - 6:58 pmLIS  Lisbon Humberto Delgado-DAY Dayton
11h 38m1 stop Washington, D.C. Dulles Intl
$777United Airlines
Mon, Sep 28 - Wed, Oct 14
Multiple Airlines Logo
3:27 pm - 2:55 pmDAY  Dayton-LIS Lisbon Humberto Delgado
18h 28m2 stops Atlanta Hartsfield-Jackson Paris Charles de Gaulle
Multiple Airlines Logo
5:00 am - 11:16 pmLIS  Lisbon Humberto Delgado-DAY Dayton
23h 16m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson
$780Multiple Airlines
Wed, Sep 30 - Wed, Oct 7
United Airlines Logo
11:30 am - 10:30 amDAY  Dayton-LIS Lisbon Humberto Delgado
18h 00m2 stops Chicago O'Hare Intl Washington, D.C. Dulles Intl
United Airlines Logo
6:45 am - 6:58 pmLIS  Lisbon Humberto Delgado-DAY Dayton
17h 13m2 stops Frankfurt am Main Washington, D.C. Dulles Intl
$780United Airlines
Tue, Sep 22 - Tue, Sep 29
United Airlines Logo
7:55 pm - 10:05 amDAY  Dayton-LIS Lisbon Humberto Delgado
9h 10m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
5:00 am - 11:33 pmLIS  Lisbon Humberto Delgado-DAY Dayton
23h 33m2 stops Frankfurt am Main Chicago O'Hare Intl
$815United Airlines
Sun, Nov 15 - Wed, Nov 18
United Airlines Logo
2:50 pm - 10:05 amDAY  Dayton-LIS Lisbon Humberto Delgado
14h 15m1 stop Washington, D.C. Dulles Intl
United Airlines Logo
5:00 am - 8:49 pmLIS  Lisbon Humberto Delgado-DAY Dayton
20h 49m2 stops Frankfurt am Main Chicago O'Hare Intl
$815United Airlines
Sun, Nov 15 - Wed, Nov 18

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

American Airlines flights from Dayton to Portugal

Our best American Airlines deals on Dayton to Portugal flight tickets
American Airlines
Sep 28
DAY6:00 amDayton
22h 05m
1 stop
LIS9:05 amLisbon Humberto Delgado
Oct 14
LIS8:55 amLisbon Humberto Delgado
16h 56m
2 stops
DAY8:51 pmDayton
$770
American Airlines
Sep 30
DAY6:00 amDayton
22h 05m
1 stop
LIS9:05 amLisbon Humberto Delgado
Oct 7
LIS11:05 amLisbon Humberto Delgado
15h 30m
1 stop
DAY9:35 pmDayton
$979
American Airlines
Oct 2
DAY6:00 amDayton
22h 05m
1 stop
LIS9:05 amLisbon Humberto Delgado
Oct 8
LIS11:05 amLisbon Humberto Delgado
15h 30m
1 stop
DAY9:35 pmDayton
$1,107

British Airways flights from Dayton to Portugal

Our best British Airways deals on Dayton to Portugal flight tickets
British Airways
Oct 2
DAY7:09 pmDayton
15h 26m
2 stops
LIS3:35 pmLisbon Humberto Delgado
Oct 8
LIS11:05 amLisbon Humberto Delgado
15h 30m
1 stop
DAY9:35 pmDayton
$895
British Airways
Sep 30
DAY12:19 pmDayton
40h 46m
2 stops
LIS10:05 amLisbon Humberto Delgado
Oct 7
LIS11:05 amLisbon Humberto Delgado
15h 30m
1 stop
DAY9:35 pmDayton
$902
British Airways
Aug 14
DAY5:46 pmDayton
19h 14m
2 stops
LIS6:00 pmLisbon Humberto Delgado
Aug 20
LIS11:05 amLisbon Humberto Delgado
15h 53m
1 stop
DAY9:58 pmDayton
$1,319

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 August 10, 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

Cheapest round-trip

DaytonPorto

DAY Dayton - OPO Porto

DAYOPO

Dayton

Mon 12/7

1:45 pm-9:30 am

2 stops14h 45m

Porto

Fri 12/11

6:00 am-6:41 pm

2 stops17h 41m

$750

DaytonLisbon

DAY Dayton - LIS Lisbon Humberto Delgado

DAYLIS

Dayton

Mon 9/28

7:33 pm-10:30 am

1 stop9h 57m

Lisbon Humberto Delgado

Wed 10/14

5:05 am-6:58 pm

2 stops18h 53m

$766

DaytonLisbon

DAY Dayton - LIS Lisbon Humberto Delgado

DAYLIS

Dayton

Mon 9/28

6:00 am-9:05 am

1 stop22h 05m

Lisbon Humberto Delgado

Wed 10/14

8:55 am-8:51 pm

2 stops16h 56m

$770

DaytonLisbon

DAY Dayton - LIS Lisbon Humberto Delgado

DAYLIS

Dayton

Tue 9/22

10:22 am-10:30 am

1 stop19h 08m

Lisbon Humberto Delgado

Tue 9/29

5:05 am-9:47 am

2 stops33h 42m

$775

DaytonLisbon

DAY Dayton - LIS Lisbon Humberto Delgado

DAYLIS

Dayton

Mon 9/28

10:22 am-8:20 am

2 stops16h 58m

Lisbon Humberto Delgado

Wed 10/14

12:20 pm-10:57 am

2 stops27h 37m

$777
Quickest round-trip

DaytonLisbon

DAY Dayton - LIS Lisbon Humberto Delgado

DAYLIS

Dayton

Mon 9/28

7:33 pm-10:30 am

1 stop9h 57m

Lisbon Humberto Delgado

Wed 10/14

12:20 pm-6:58 pm

1 stop11h 38m

$777

DaytonLisbon

DAY Dayton - LIS Lisbon Humberto Delgado

DAYLIS

Dayton

Wed 9/30

3:27 pm-2:55 pm

2 stops18h 28m

Lisbon Humberto Delgado

Wed 10/7

5:00 am-11:16 pm

2 stops23h 16m

$780

DaytonLisbon

DAY Dayton - LIS Lisbon Humberto Delgado

DAYLIS

Dayton

Tue 9/22

11:30 am-10:30 am

2 stops18h 00m

Lisbon Humberto Delgado

Tue 9/29

6:45 am-6:58 pm

2 stops17h 13m

$780

DaytonLisbon

DAY Dayton - LIS Lisbon Humberto Delgado

DAYLIS

Dayton

Sun 11/15

7:55 pm-10:05 am

1 stop9h 10m

Lisbon Humberto Delgado

Wed 11/18

5:00 am-11:33 pm

2 stops23h 33m

$815

DaytonLisbon

DAY Dayton - LIS Lisbon Humberto Delgado

DAYLIS

Dayton

Sun 11/15

2:50 pm-10:05 am

1 stop14h 15m

Lisbon Humberto Delgado

Wed 11/18

5:00 am-8:49 pm

2 stops20h 49m

$815

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

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

Can stopping save me money on Dayton to Portugal flights?

You could potentially save up to 61% 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 15m

Direct flights

None
The fastest flight from Dayton to Portugal takes 14h 15m
There are no direct flights from Dayton to Portugal. There are no popular flight routes from Dayton to Portugal.
Search flight deals

Frequently asked questions about flying from Dayton to Portugal

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

    Prices for flights from Dayton Airport to Portugal refresh daily.

  • 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.

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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 9/9
Wed 9/16
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Portugal

Popular cities in Portugal

Popular flights according to clicks in the last 7 days on momondo
Flights to Lisbonfrom $552
Flights to Portofrom $514
Flights to Funchalfrom $605
Flights to Farofrom $626
Flights to Ponta Delgadafrom $575
Flights to Lajesfrom $605
Flights to Hortafrom $670
Flights to Pico Islandfrom $668
Flights to Porto Santofrom $713
Flights to Velasfrom $690