MKE - OPO

$578 Find Cheap Flights from Milwaukee to Porto

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Milwaukee to Porto departing on 4/19. 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 Porto

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Milwaukee to Porto, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Milwaukee to Porto, as well as popular online travel agencies
Travelers love KAYAK
41.299.237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$753
United Airlines
Tue 8/11Wed 8/19
MKE - OPO • 1 stop
Cheapest one-way
$578
United Airlines
Sun 4/19
MKE - OPO • 2 stops
Nonstop flights
Not available
There are currently no direct flights between Milwaukee and Porto. You'll need at least 1 connection.
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Top layover airports
Madrid (MAD)
Cheapest • Avg $658 (round-trip)
Madrid (MAD)
Shortest trip • 13h 10m (one-way)
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Porto!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Milwaukee to Porto (MKE-OPO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Milwaukee to Porto 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 Milwaukee to Porto

Tue, Aug 11 - Wed, Aug 19
United Airlines Logo
12:07 pm - 6:55 am
MKE
-
OPO
12h 48m
1 stop
United Airlines Logo
12:35 pm - 12:11 am
OPO
-
MKE
17h 36m
2 stops
$753United Airlines
Mon, Apr 27 - Tue, May 5
KLM Logo
5:48 pm - 3:30 pm
MKE
-
OPO
15h 42m
2 stops
KLM Logo
6:15 am - 4:24 pm
OPO
-
MKE
16h 09m
2 stops
$764KLM
Mon, Aug 10 - Fri, Aug 21
Delta Logo
7:00 am - 10:30 am
MKE
-
OPO
21h 30m
1 stop
Delta Logo
5:00 am - 4:42 pm
OPO
-
MKE
17h 42m
2 stops
$777Delta
Mon, Aug 10 - Fri, Aug 21
Delta Logo
4:15 pm - 3:25 pm
MKE
-
OPO
17h 10m
2 stops
Delta Logo
5:00 am - 4:42 pm
OPO
-
MKE
17h 42m
2 stops
$781Delta
Tue, Aug 11 - Fri, Aug 21
Multiple Airlines Logo
1:00 pm - 10:30 am
MKE
-
OPO
15h 30m
2 stops
Multiple Airlines Logo
5:00 am - 4:42 pm
OPO
-
MKE
17h 42m
2 stops
$782Multiple Airlines
Tue, Aug 11 - Fri, Aug 21
KLM Logo
7:00 am - 10:30 am
MKE
-
OPO
21h 30m
1 stop
KLM Logo
12:45 pm - 8:09 pm
OPO
-
MKE
13h 24m
1 stop
$784KLM
Mon, Apr 27 - Tue, May 5
British Airways Logo
6:40 pm - 7:30 pm
MKE
-
OPO
42h 50m
2 stops
British Airways Logo
8:20 am - 6:00 pm
OPO
-
MKE
15h 40m
2 stops
$786British Airways
Mon, Aug 10 - Wed, Aug 19
Air Canada Logo
7:30 am - 7:00 am
MKE
-
OPO
17h 30m
2 stops
Air Canada Logo
2:25 pm - 10:36 pm
OPO
-
MKE
14h 11m
2 stops
$805Air Canada
Sat, Aug 8 - Wed, Aug 19
United Airlines Logo
1:30 pm - 9:45 am
MKE
-
OPO
14h 15m
2 stops
United Airlines Logo
12:35 pm - 12:11 am
OPO
-
MKE
17h 36m
2 stops
$813United Airlines
Sun, Aug 9 - Wed, Aug 19
Delta Logo
7:00 am - 10:25 am
MKE
-
OPO
21h 25m
1 stop
Delta Logo
5:55 am - 9:05 pm
OPO
-
MKE
21h 10m
2 stops
$834Delta
Booking Insights

KAYAK's insights & trends for Milwaukee to Porto flights

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

Which airlines provide the cheapest flights from Milwaukee to Porto?

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 Milwaukee to Porto were found on United Airlines ($753) and KLM ($764).

Find deals

Good to know

Cheapest flight$578
Flight from Milwaukee to Porto

When to book flights from Milwaukee to Porto

Are your dates flexible? Find out the best times to travel from Milwaukee to Porto based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Milwaukee to Porto

  • What is the cheapest flight from Milwaukee to Porto?

    In the last 3 days, the lowest price for a flight from Milwaukee to Porto was $578 for a one-way ticket and $753 for a round-trip.

  • Do I need a passport to fly between Milwaukee and Porto?

    Yes, you’ll need a passport to travel to Porto from Milwaukee.

  • Which airports will I be using when flying from Milwaukee to Porto?

    Milwaukee airport is called Milwaukee-Mitchell and the only airport in Porto is Porto.

  • Which aircraft models fly most regularly from Milwaukee to Porto?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Milwaukee to Porto?

    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 Milwaukee to Porto.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Porto from Milwaukee 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 Milwaukee to Porto?

    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 to Porto with an airline and back to Milwaukee with another airline. Booking your flights between Milwaukee and OPO can sometimes prove cheaper using this method.

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

    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 to Porto from Milwaukee up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from Milwaukee to Porto

Information on your arrival and departure airports

Milwaukee (MKE)
Porto (OPO)