$877 Find Cheap Flights from Dayton to Portugal

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Dayton to Portugal departing on 6/23. 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

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Best Portugal Flight Deals from Dayton

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Lisbon
Lisbon2 stops$937
Porto
Porto2 stops$924
Lisbon
Lisbon2 stops$937
Porto
Porto2 stops$924

Cheap Flights from Dayton to Portugal

 
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

Wed, Jul 9 - Tue, Jul 22
United Airlines Logo
2:52 pm - 9:45 amDAY-OPO
13h 53m2 stops
United Airlines Logo
12:50 pm - 2:16 pmOPO-DAY
30h 26m2 stops
$924United Airlines
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Thu, Jul 10 - Thu, Jul 17
United Airlines Logo
10:26 am - 11:05 amDAY-LIS
19h 39m2 stops
United Airlines Logo
12:55 pm - 1:18 pmLIS-DAY
29h 23m2 stops
$937United Airlines
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Thu, Jul 10 - Thu, Jul 17
United Airlines Logo
7:48 pm - 10:30 amDAY-LIS
9h 42m1 stop
United Airlines Logo
12:55 pm - 1:18 pmLIS-DAY
29h 23m2 stops
$978United Airlines
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Thu, Jul 10 - Thu, Jul 17
United Airlines Logo
2:52 pm - 10:30 amDAY-LIS
14h 38m1 stop
United Airlines Logo
5:05 am - 2:16 pmLIS-DAY
38h 11m2 stops
$994United Airlines
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Thu, Jul 10 - Thu, Jul 17
British Airways Logo
12:50 pm - 11:05 pmDAY-LIS
29h 15m2 stops
British Airways Logo
6:40 pm - 9:53 pmLIS-DAY
32h 13m2 stops
$997British Airways
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Wed, Jul 9 - Sun, Jul 20
United Airlines Logo
2:52 pm - 9:45 amDAY-OPO
13h 53m2 stops
United Airlines Logo
6:00 am - 9:51 amOPO-DAY
32h 51m2 stops
$1,020United Airlines
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Thu, Jul 10 - Thu, Jul 17
American Airlines Logo
6:50 am - 9:05 amDAY-LIS
21h 15m1 stop
American Airlines Logo
11:05 am - 9:53 pmLIS-DAY
15h 48m1 stop
$1,038American Airlines
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Fri, Jul 25 - Fri, Aug 1
American Airlines Logo
6:50 am - 9:05 amDAY-LIS
21h 15m1 stop
American Airlines Logo
11:05 am - 9:53 pmLIS-DAY
15h 48m1 stop
$1,235American Airlines
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Fri, Jul 25 - Fri, Aug 1
Logo
2:52 pm - 8:05 pmDAY-LIS
24h 13m3 stops
Logo
6:00 am - 11:58 pmLIS-DAY
22h 58m3 stops
$1,599
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Thu, Jul 10 - Thu, Jul 17
Logo
2:52 pm - 9:50 pmDAY-LIS
25h 58m2 stops
Logo
7:10 pm - 10:57 pmLIS-DAY
32h 47m3 stops
$1,861
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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 ($924) and British Airways ($997).

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Good to know

Low seasonFebruary
High seasonMarch
Cheapest flight$877
Best time to beat the crowds with an average 45% drop in price.
Most popular time to fly and prices are also 28% lower on average.
Flight from Dayton to Porto

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.

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 8790 reviews
7.0Entertainment
7.7Boarding
6.6Food
8.1Crew
7.3Comfort
Airline reviews

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

2.0 MediocreAnonymous, Jun 2025LAX - SEA
Read more United Airlines reviews

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

It was fine, definitely older planes with no charging or anything. There’s no entertainment set up on board, but it is nice that they allow you to access the in flight entertainment from your phone without having to pay for the Wi-Fi and they do offer free texting.

Terrible. Out flight was delayed for 21 (twenty one) hours. United is a joke.

Boarding was mayhem. Late boarding by 15 minutes because of lack of staff (missing 1 flight attendant. We had to wait for an arrival of another plane before we could board). Flight was a little rough, but cannot blame on airlines.

Impressed with the service despite turbulence because of the weather. Both flights arrived before their scheduled times.

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

The food was the worst I’ve had on any flight I’ve ever been on.

Great experience…left a bit behind schedule but made up fir that in the air and landed 10 minutes early 😁

I was supposed to be on business class at first class from Denver back to Miami due to weather changes. I missed my connection and it’s put on a flight to Fort Lauderdale. Instead of honoring my business class/1st class ticket, they put me in coach, but there were two first class seats open. I think it’s absolutely disgusting that I paid for first class $1300 ticket and they put me in economy and they had to open seats available and I have still not been refunded the difference. I ended up having to eat a snack box instead of the meal I was supposed to get and did not get home till 2 AM so I think that’s a little pathetic that I had to live off crackers for dinner And my poor dog ate some cheese and salami. Oh yes, apparently when they switched me to the new flight they forgot to mention I had a service dog

Excellent service despite turbulence during the flight. Flight attendants were remarkable!

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

Information on your arrival and departure airports

Dayton (DAY)

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