MKE - BCN

$353 Find Cheap Flights from Milwaukee to Barcelona

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 Barcelona-El Prat departing on 4/25. 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 Barcelona-El Prat Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Milwaukee to Barcelona, 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 Barcelona, as well as popular online travel agencies
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41,299,237 searches in the past 7 days on KAYAK

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Everything you should know

Cheapest round-trip
$733
Typical prices: $962-$1,135
United Airlines
mån 4/27mån 5/4
MKE - BCN • 1 stop
Cheapest one-way
$353
Multiple Airlines
lör 4/25
MKE - BCN • 3 stops
Top airlines
Cheapest • from $733 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Milwaukee and Barcelona-El Prat. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $772 (round-trip)
Shortest trip • 11h 33m (one-way)
Insights
Insights
Insights
Insights
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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 Barcelona-El Prat!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Milwaukee to Barcelona-El Prat (MKE-BCN)

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

mån, apr 27 - mån, maj 4
United Airlines Logo
2:32 pm - 1:15 pm
MKE
-
BCN
15h 43m
1 stop
United Airlines Logo
12:15 pm - 2:27 pm
BCN
-
MKE
33h 12m
2 stops
$733United Airlines
mån, apr 27 - mån, maj 4
United Airlines Logo
5:37 pm - 1:15 pm
MKE
-
BCN
12h 38m
1 stop
United Airlines Logo
3:15 pm - 8:48 pm
BCN
-
MKE
12h 33m
1 stop
$753United Airlines
mån, apr 27 - mån, maj 4
Air Canada Logo
10:45 am - 9:20 am
MKE
-
BCN
39h 35m
2 stops
Air Canada Logo
12:15 pm - 8:48 pm
BCN
-
MKE
39h 33m
2 stops
$756Air Canada
lör, apr 25 - lör, maj 2
Iberia Logo
6:40 pm - 11:45 am
MKE
-
BCN
34h 05m
2 stops
Iberia Logo
9:15 pm - 8:06 pm
BCN
-
MKE
29h 51m
2 stops
$783Iberia
sön, maj 10 - ons, maj 27
United Airlines Logo
6:56 pm - 1:15 pm
MKE
-
BCN
11h 19m
1 stop
United Airlines Logo
12:15 pm - 9:57 am
BCN
-
MKE
28h 42m
2 stops
$796United Airlines
sön, maj 10 - tis, maj 26
United Airlines Logo
6:49 am - 8:20 am
MKE
-
BCN
18h 31m
2 stops
United Airlines Logo
12:15 pm - 10:09 am
BCN
-
MKE
28h 54m
2 stops
$801United Airlines
lör, apr 25 - lör, maj 2
American Airlines Logo
4:26 pm - 10:55 am
MKE
-
BCN
11h 29m
1 stop
American Airlines Logo
10:30 am - 6:00 pm
BCN
-
MKE
14h 30m
1 stop
$803American Airlines
sön, maj 10 - tis, maj 26
United Airlines Logo
6:49 am - 1:15 pm
MKE
-
BCN
23h 26m
1 stop
United Airlines Logo
3:15 pm - 8:46 pm
BCN
-
MKE
12h 31m
1 stop
$807United Airlines
tis, apr 28 - tis, maj 5
British Airways Logo
4:26 pm - 10:55 am
MKE
-
BCN
11h 29m
1 stop
British Airways Logo
10:30 am - 11:40 pm
BCN
-
MKE
20h 10m
1 stop
$811British Airways
ons, apr 29 - ons, maj 6
Iberia Logo
1:53 pm - 10:35 am
MKE
-
BCN
13h 42m
1 stop
Iberia Logo
10:30 am - 5:11 pm
BCN
-
MKE
13h 41m
1 stop
$816Iberia
Booking Insights

KAYAK's insights & trends for Milwaukee to Barcelona-El Prat flights

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

How much is a round-trip flight from Milwaukee to Barcelona-El Prat Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Milwaukee to Barcelona-El Prat Airport departing in April.

Good to know

Low seasonOctober
Cheapest flight$353
Best time to beat the crowds with an average 31% drop in price.
Most popular time to fly and prices are also 20% lower on average.
Flight from Milwaukee to Barcelona

When to book flights from Milwaukee to Barcelona-El Prat

Are your dates flexible? Find out the best times to travel from Milwaukee to Barcelona-El Prat 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 Milwaukee to Barcelona flights

  • What is the cheapest flight from Milwaukee to Barcelona-El Prat Airport?

    In the last 3 days, the lowest price for a flight from Milwaukee to Barcelona-El Prat Airport was $353 for a one-way ticket and $733 for a round-trip.

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

    Yes, you'll most likely have to show a valid passport before boarding the plane in Milwaukee and on arrival in Barcelona.

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

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

  • Which airline alliances offer flights from Milwaukee to Barcelona?

    Star Alliance, and oneworld are the airline alliances operating flights between Milwaukee and Barcelona, with Star Alliance being the most commonly used for this route.

  • Which is the best airline for flights from Milwaukee to Barcelona, United Airlines or American Airlines?

    The two airlines most popular with KAYAK users for flights from Milwaukee to Barcelona are United Airlines and American Airlines. With an average price for the route of $754 and an overall rating of 7.4, United Airlines is the most popular choice. American Airlines is also a great choice for the route, with an average price of $775 and an overall rating of 7.1.

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

    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 Barcelona.

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

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

    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 Barcelona with an airline and back to Milwaukee with another airline. Booking your flights between Milwaukee and BCN 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 Barcelona?

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

Reviews of the top 3 airlines serving from Milwaukee to Barcelona-El Prat

 
See real verified KAYAK customer reviews for airlines flying from Milwaukee to Barcelona. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Milwaukee to Barcelona-El Prat? 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 9428 reviews
6.6Food
7.7Boarding
7.3Comfort
8.1Crew
7.1Entertainment
Airline reviews

Everything was on time and service on the flight was great!

10.0 ExcellentAsha, Mar 2026
MIA - IAH
Read more United Airlines reviews

Everything was on time and service on the flight was great!

Wifi Bluetooth features for watching in flight movie was horrible. Screen kept blacking out no connection of sound although it said connected. Other than that smooth trip .

The 777’s economy seat’s legroom was more tolerable than expected. I appreciate the reclining mechanism which slides the seat forward to minimize cannibalizing the space behind. The food was terrible: very salty.

The travel company that you have on your site did me so wrong. I don’t know how it happened, but they put my son‘s name on my plane ticket flying to Vietnam. Along with his birthday. They would not have let me fly from Fort Myers to Ho Chi Minh City. I don’t think that I can ever use your service again. I typed my information into the browser along with my passport number and four days before I’m leaving I have to quickly search another ticket to fly out here.

Seats are uncomfortable. This has been a trend in the industry for decades. Trying to fit more seats on each plane to increase profits at the expense of the passenger.

The flight was delayed so we were dead tired, and after that the turbulence was horrible. I was very scared.

It’s always a great time flying with united airlines.

Good flight. Efficient boarding and competent flight crew. No problems until we arrived at our destination gate. We were early so there was an aircraft at the gate that had to move before we could pull in. Then, due to the type of aircraft we flew, the cabin door could not be opened until some luggage from the cargo bay was offloaded to preserve center of gravity characteristics. So, that further delayed deplaning. Despite being 20 minutes early on landing, we ended up being 5 to 10 minutes late after all the delays.

Everything went well except the turbulence what no one have a control of but pilot and crew handled very good!

There was no WiFi available, there were mechanical problems with the plane and we landed at C 124, then the gate was switched to A 26, then all the way back to C126! For a 75 yo woman traveling alone, this was a difficult journey, indeed!

After changing the departure gate 5 times making us mo e from one side of the airport to the other and then back the flight was delayed nearly 2 hours. The male flight attendant had a bad attitude with the guest being condescending, disrespectful with people who were already on edge.

Easy boarding. Rows are smaller but that may be an older and bigger me now :)

It would have been nice if American tried to care.

American Airlines did everything they could with the high Spring Break crowd. I was frustrated to be changed from 1st class to a middle seat at the back of the plane. This has happened before, not sure booking 1st class and paying the extra actually works.

I booked 1st class, my flights were changed and I was sitting in the middle at the back of the plane. A far cry from the 1st class I purchased for my flights. I am grateful I arrived on time.

Aging planer and NO wifi on a 14 hour day flight. Unless you are retired or don't need to work or be in touch with the world... The lack of Wifif really ruined the flight. And the old plane - really showing it's age, wasn't great

There was no beverage service and the only time I saw a crew member walk through the cabin is when we were preparing to land.

Our flight was delayed 3 times and this is why I am giving such low reviews. Everything else was okay but being in the airport at 4:30pm for my initial flight at 7pm to not leave until after 9:30pm is insane,

Flights were constantly delayed. CRW took 50 minutes to get bags

Flight has been delayed every time I've ever taken it. Seats uncomfortable. Children behind me yelling the entire flight. Some of this is out of their control but overall just consistently not a great experience.

Very please with the seating that the Kayak staff booked for us!

Worth every penny to upgrade to BC. Treated and felt more like First Class

I paid for a very expensive Business Class seat to and from Cairo Egypt from Charleston SC. There was partnership from states to London using American Airlines. That leg was amazing. The British Airlines leg was a joke. They used the standard no leg room 3 by 3 seats. A tray was put on the middle seat. The trip was 5 hours, from London to Cairo, thus my BC purchase. There was no screen proving tv/movie options, only a small device plug. The fold down tray and the bag of peanuts were typical of normal short run flying. The one toilet was located in the galley. We all got to know each other well. This was my first and last trip with British Airlines. I now understand why they would NEVER give me a seat chart so that I could make a selection.prior to departure. It honestly would not have made a difference, there were less than 50% of occupied seats. Apparently everyone got the memo but me. I have never felt so cheated as with that trip, got to so another going back to London, yeah. I will be sending a letter to customer service and asking for a refund. I will be photos comparing the two BC legs. OH, one more thing. The FC ticket holders got bulkhead and exit row seats. I know they had to be thrilled

The luggage problem I previously mentioned was actually this flight

Good service, food and comfort in World Traveller Plus. Entertainment was poor - no wifi on the way out and barely working on the way back. Not a great choice of entertainment on the seat back tv.

Late! Late and late! More than 1hr 30mn. This sucks when it is the last of a 4 flight journey. I missed my dinner! Which is not nice on Valentine’s Day!!! But better than the gate next to us, the poor Chinese people were rebooked to the next day flight. AA had to call security as it became very heated with the passengers! It was a mess at DFW that afternoon/evening. I wish they had some food for the people who travel as part of international journey. Indigo does it in India and it is fantastic.

They had us seating down for one hour just waiting on the plane

Flying with BA is always a good experience—even in economy class. It is better if in business and first class. Timely, breeze through security and timely connections

We waited at BOS at the gate for an hour and couldn’t get a drink or anything. Once in the air the service, food and ride was excellent.

My enetertainmnet screen was broken. Lost my bags. Almost missed my flight do to connection issues with (despite a request) ZERO help from crew. Food was edible. Potatoes pretty good even

Everything you need to know for your flight from Milwaukee to Barcelona-El Prat

Information on your arrival and departure airports