$480 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 1/8. 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

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Cheap Flights from Dayton to Portugal

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Lisbon
Lisbon2 stops$480
Porto
Porto2 stops$868
Lisbon
Lisbon2 stops$480
Porto
Porto2 stops$868

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

Thu, Jan 8 - Wed, Jan 21
Lufthansa Logo
2:04 pm - 11:30 pmDAY-LIS
28h 26m2 stops
Lufthansa Logo
5:00 am - 7:37 pmLIS-DAY
19h 37m2 stops
$480Lufthansa
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Thu, Jan 8 - Wed, Jan 21
United Airlines Logo
10:50 am - 8:10 amDAY-LIS
16h 20m2 stops
United Airlines Logo
5:00 am - 8:22 pmLIS-DAY
20h 22m2 stops
$484United Airlines
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Tue, Dec 2 - Tue, Dec 9
United Airlines Logo
10:00 am - 9:20 amDAY-LIS
18h 20m2 stops
United Airlines Logo
11:20 am - 7:17 pmLIS-DAY
36h 57m2 stops
$532United Airlines
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Tue, Dec 2 - Tue, Dec 9
United Airlines Logo
2:50 pm - 10:15 amDAY-LIS
14h 25m1 stop
United Airlines Logo
11:55 am - 7:17 pmLIS-DAY
12h 22m1 stop
$555United Airlines
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Thu, Jan 8 - Wed, Jan 21
British Airways Logo
4:21 pm - 12:05 pmDAY-LIS
38h 44m2 stops
British Airways Logo
11:05 am - 8:38 pmLIS-DAY
14h 33m1 stop
$663British Airways
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Thu, Apr 2 - Fri, Apr 10
United Airlines Logo
7:45 pm - 9:20 amDAY-LIS
32h 35m2 stops
United Airlines Logo
11:25 am - 4:51 pmLIS-DAY
34h 26m2 stops
$665United Airlines
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Thu, Jan 8 - Wed, Jan 21
British Airways Logo
4:21 pm - 12:05 pmDAY-LIS
38h 44m2 stops
British Airways Logo
11:05 am - 8:38 pmLIS-DAY
14h 33m1 stop
$673British Airways
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Thu, Apr 2 - Fri, Apr 10
United Airlines Logo
7:45 pm - 10:30 amDAY-LIS
9h 45m1 stop
United Airlines Logo
11:25 am - 4:51 pmLIS-DAY
34h 26m2 stops
$686United Airlines
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Thu, Nov 27 - Thu, Jan 1
Multiple Airlines Logo
2:50 pm - 2:45 pmDAY-OPO
18h 55m2 stops
Multiple Airlines Logo
8:40 am - 8:22 pmOPO-DAY
16h 42m2 stops
$1,976Multiple Airlines
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Thu, Nov 27 - Sun, Jan 4
Delta Logo
1:22 pm - 10:25 amDAY-OPO
16h 03m2 stops
Delta Logo
5:00 am - 11:59 pmOPO-DAY
23h 59m2 stops
$2,581Delta
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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 fly non-stop between Dayton and Portugal?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for round-trip flights from Dayton to Portugal.

There is just one airline that flies from Dayton to Portugal direct and that is United Airlines. The best round-trip deal found from United Airlines for the route is to Lisbon (LIS) and costs $575.

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 Lufthansa ($480) and United Airlines ($484).

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Good to know

Cheapest flight$480
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.

  • What is the cheapest time of day to fly to Portugal?

    The cheapest time of day to fly to Portugal is generally in the morning, when round-trip flights cost $801 on average. Morning departures are around 13% cheaper than evening flights, on average. The most expensive time of day to fly to Portugal is generally in the afternoon, which is peak travel time and where the average cost of a ticket is $1,308.

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 9013 reviews
7.7Boarding
6.6Food
7.1Entertainment
8.1Crew
7.3Comfort
Airline reviews

Even though we were delayed, we were able to make our connection

8.0 ExcellentDavid, Nov 2025TYS - IAH
Read more United Airlines reviews

Even though we were delayed, we were able to make our connection

Seats in waiting area and on plane hard as rock. Fast internet on the flight was great! Crew was kind.

Starlink wifi on the Embraer E175 is an excellent experience. I was able to connect and work from IAD all the way to approach into BTV.

Older aircraft, no meal, only food was for purchase. Not impressed United.

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

Always wish for more healthy, gluten free options. We have to bring our own.

Having a long layover, I was very appreciative of the ability to stand by for an earlier flight. Other airlines like Delta have refused this to me in the past, just to be mean (because my ticket class wasn't high enough). United went out of their way to help me get to my destination early, which I really appreciated given that it was the third leg of a 24+ hour journey for me.

Other than a way way too cold cabinets for the entire flight, all was great

One bag is incorrect and not acceptable for an international flight. The food was not just good. I won't fly with them again.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

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

Information on your arrival and departure airports

Dayton (DAY)