$516 Find Cheap Flights from Dayton to Portugal

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dayton to Portugal departing on 4/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Portugal

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Dayton to Portugal

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Lisbon
Lisbon2 stops$516
Porto
Porto2 stops$541
Ponta Delgada
Ponta Delgada2 stops$2,726
Lisbon
Lisbon2 stops$516
Porto
Porto2 stops$541
Ponta Delgada
Ponta Delgada2 stops$2,726

Book Cheap Dayton to Portugal Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Dayton to Portugal that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Dayton to Portugal

Mon, Apr 6 - Mon, Apr 13
United Airlines Logo
7:33 pm - 11:45 am
DAY
-
LIS
35h 12m
2 stops
United Airlines Logo
7:25 am - 6:58 pm
LIS
-
DAY
40h 33m
2 stops
$516United Airlines
Thu, Apr 16 - Tue, Apr 21
American Airlines Logo
12:35 pm - 11:45 am
DAY
-
OPO
18h 10m
2 stops
American Airlines Logo
8:20 am - 10:18 pm
OPO
-
DAY
18h 58m
2 stops
$541American Airlines
Tue, Mar 3 - Thu, Mar 19
United Airlines Logo
9:45 am - 10:15 am
DAY
-
LIS
19h 30m
1 stop
United Airlines Logo
5:00 am - 7:38 pm
LIS
-
DAY
18h 38m
2 stops
$545United Airlines
Tue, Mar 3 - Thu, Mar 19
United Airlines Logo
2:57 pm - 8:10 am
DAY
-
LIS
12h 13m
2 stops
United Airlines Logo
5:00 am - 11:43 pm
LIS
-
DAY
22h 43m
2 stops
$550United Airlines
Tue, Mar 3 - Thu, Mar 19
United Airlines Logo
2:10 pm - 8:10 am
DAY
-
LIS
13h 00m
2 stops
United Airlines Logo
6:10 am - 10:08 pm
LIS
-
DAY
19h 58m
2 stops
$551United Airlines
Tue, Mar 3 - Thu, Mar 19
Delta Logo
6:44 pm - 5:30 pm
DAY
-
LIS
17h 46m
2 stops
Delta Logo
5:00 am - 10:48 pm
LIS
-
DAY
21h 48m
2 stops
$552Delta
Tue, Mar 3 - Thu, Mar 19
American Airlines Logo
9:30 am - 9:05 am
DAY
-
LIS
18h 35m
2 stops
American Airlines Logo
10:55 am - 9:24 pm
LIS
-
DAY
14h 29m
1 stop
$561American Airlines
Mon, Apr 27 - Sun, May 10
Iberia Logo
6:40 pm - 7:40 am
DAY
-
OPO
32h 00m
2 stops
Iberia Logo
8:20 am - 10:18 pm
OPO
-
DAY
18h 58m
2 stops
$655Iberia
Tue, Aug 18 - Wed, Sep 2
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
Delta Logo
11:05 am - 10:30 am
DAY
-
OPO
18h 25m
2 stops
Delta Logo
12:40 pm - 11:15 pm
OPO
-
DAY
15h 35m
2 stops
$664Delta
Booking Insights

KAYAK's insights & trends for Dayton to Portugal flights

Get data-powered insights and trends into flights from Dayton to Portugal to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Dayton to Portugal?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Dayton to Portugal were found on United Airlines ($516) and American Airlines ($541).

Find deals

Good to know

Cheapest flight$516
Flight from Dayton to Lisbon

FAQs - booking Portugal flights

  • How does KAYAK find such low prices on flights from Dayton to Portugal?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Dayton to Portugal.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Dayton to Portugal?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Dayton to Portugal is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Dayton to Portugal?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Dayton to Portugal with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Dayton to Portugal?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Dayton to Portugal up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Dayton to Portugal

 
Need help choosing which airline to fly with from Dayton to Portugal? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9335 reviews
7.1Entertainment
7.3Comfort
6.6Food
7.7Boarding
8.1Crew
Airline reviews

Everything was great except for the boarding process. Everyone is lining up all at the same time and it’s hard to tell between the groups as they are way too large.

10.0 ExcellentElizabeth, Feb 2026
ATL - IAH
Read more United Airlines reviews

Everything was great except for the boarding process. Everyone is lining up all at the same time and it’s hard to tell between the groups as they are way too large.

Women boarding passengers at the gate was absolutely rude and disrespectful of passengers. The flight attendant was absolutely delightful! Smiling and connected with the passengers. So happy. The seats are cramped and uncomfortable but I guess that’s just the way it is Communication regarding flight was excellent

Overall we had a good experience during our flight from San Francisco to Houston.

Airport terminal was outdated, flight was on a small jet with no wifi

We were delayed for about an hour from taking off due to traffic control procedures at the destination airport. But once in the air, the flight went well. The crew members were great and provided cabin service despite moderate turbulence during much of the flight.

it was a very short flight so my expectations were low.

As great a red-eye flight as red-eye flights can be.

Once boarding started it was pretty quick. Food was inedible; cold and salty..

Entertainment kept turning itself off. Gave up on watching a movie.

Both the WIFI and entertainment did not work for 2.5h

Everything you need to know for your flight from Dayton to Portugal

Information on your arrival and departure airports

Dayton (DAY)