Cheap flights from Milwaukee General Mitchell to Porto

Return selected
Return selected
origin
Enter the city you're flying from, or choose from the options below
Include nearby airports
    selected
    destination
    . Enter your destination, or choose from the options below
    Include nearby airports
      selected
      Travellers and cabin class, 1 Adult, Economy

      Compare Milwaukee General Mitchell to Porto flight deals

      Find the cheapest month or even day of the year to fly to Porto

      Book the best Porto fare with no extra fees

      Flight deals from Milwaukee General Mitchell to Porto

      Looking for a cheap last-minute deal or the best return flight from Milwaukee General Mitchell Airport to Porto Airport? If you want to travel next month, return fares start from P53,948. Find the lowest prices on one-way and return tickets right here.

      Find the cheapest month to fly from Milwaukee General Mitchell to Porto

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Milwaukee General Mitchell to Porto flights are currently cheapest in December.

      Milwaukee General Mitchell to Porto: Alternative routes

      Compare routes from Milwaukee General Mitchell to Porto below. You may find an airport to fly into that's cheaper, faster, or easier than Porto.

      Milwaukee to Porto: Flight information

      The things to know before you go.
      Cheapest flight foundP23,891
      Cheapest month to flyDecember

      Finding cheap flights from Milwaukee General Mitchell to Porto: Frequently asked questions

      The best price we found for a return flight from Milwaukee General Mitchell to Porto is P53,948. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
      Currently, there are no airlines that fly direct from Milwaukee General Mitchell to Porto. But we found flights with one or more stops from P53,948.
      As of July 2026, there are no flights flying from Milwaukee General Mitchell to Porto.
      The cheapest month to fly from Milwaukee General Mitchell to Porto is usually August.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Milwaukee General Mitchell Airport to Porto Airport on Wednesday, 19 August 2026.
      No airlines currently offer direct flights between Milwaukee General Mitchell Airport and Porto Airport. Most routes have one or more stops.
      We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Porto but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

      We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Porto is around 40 days in advance, so don’t leave your flight to the last minute.

      Currently, Delta offers the cheapest flight tickets to Porto.

      Travelling from Milwaukee General Mitchell Airport (MKE) to Porto Airport (OPO): what you need to know

      • Porto's timezone is UTC+0, which makes Porto six hours ahead of Milwaukee.

      • Arriving two hours before an international flight and one hour ahead of a domestic departure are travel rules to live by. Make sure you're at the airport on time to board your MKE to OPO flight.

      • During popular months like June, it's a good idea to get to the airport well in advance. Plan to arrive two hours before domestic departures and four hours ahead for international flights when you fly during a high season in general.

      • Pick a stopover if you'd like to break up your flight. Simply uncheck 'Direct flights only' to see all your options for tickets from Milwaukee General Mitchell Airport to Porto Airport. New York Newark Airport is a popular stopover on the MKE to OPO route.

      How to find the cheapest flights from Milwaukee General Mitchell Airport (MKE) to Porto Airport (OPO)

      • Currently, P23,891 is the cheapest price we've found for a one-way Milwaukee General Mitchell Airport to Porto Airport flight. The best price for a return plane ticket is P53,948. Keep in mind that fares may change due to availability at the time of booking.

      • To get your hands on cheap tickets from MKE to OPO, book ahead. Airlines generally offer lower prices when flights are first made available.

      • The 'Whole month' tool shows you the cheapest flights from Milwaukee General Mitchell Airport to Porto Airport across the month. It's a good way to snap up a bargain if your dates are flexible.

      • You don't need to check every day to find out if fares have gone down when you create a Price Alert. We'll update you the moment a special offer becomes available on cheap flights from MKE to OPO.

      • Find the perfect flight for you with the help of the filters. To see the 'Fastest,' 'Best' or 'Cheapest' flights from Milwaukee General Mitchell Airport to Porto Airport, use the 'Sort by' function. You can also filter results by airline, departure and arrival times, and number of stops.

      Handy information about Milwaukee General Mitchell Airport (MKE)

      • You'll find MKE at 5300 S. Howell Avenue.

      • Of the flights that depart from Milwaukee General Mitchell Airport, 76% arrive on time at their destination.

      • Central Milwaukee to Milwaukee General Mitchell Airport is around 16 kilometers. Depending on traffic, it'll take you about 20 minutes to get there if you're ride-sharing, catching a taxi or driving.

      • Catching public transport? Expect a trip time of around 40 minutes.

      • Looking for a handy hotel near MKE? If you're catching an early flight from Milwaukee General Mitchell Airport to Porto Airport, these stays will have you moments from your departure lounge:

      Arriving at Porto Airport (OPO)

      • If you're arriving on a late Milwaukee General Mitchell Airport to Porto Airport flight, few things beat the convenience of staying close to the terminal. Grab your suitcases from the carousel and then be showered and relaxing soon after at one of these accommodation options near OPO:

      • Begin your adventure by picking up a Porto Airport rental car. Grab your wheels from Klass Wagen, Goldcar or Drive & Go and experience the lesser-explored corners of Porto and beyond.

      • Lock in the best rate by reserving your ride from Porto Airport around three weeks before your trip.

      When to fly to Porto Airport (OPO)

      • August is the most popular month for flights from Milwaukee General Mitchell Airport to Porto Airport. To escape the crowds, visit Porto in March.

      • Book your flight from Milwaukee General Mitchell Airport to Porto Airport for August if you want to go to Porto during its warmest month. Expect temperatures of between 14ºC (57ºF) and 32ºC (90ºF).

      • If you want cooler conditions, search for a cheap ticket from MKE to OPO in January. Temperatures average between 3ºC (37ºF) and 14ºC (57ºF) then.

      Explore more of Portugal

      • Lisbon is just one of the many places in Portugal waiting to be explored once you've seen Porto. Around 274 kilometers away to the south, popular attractions include Pasteis de Belém, belém and Real Mosteiro de Santa Maria de Belém.

      • Around 274 kilometers south of Porto, Amadora is another essential stop in Portugal. Experience the best of this destination with a visit to Roman Villa, Park Fantasia and Palácio dos Condes da Lousã.

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.