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Barcelona-El Prat

$353+ Cheap flights from Milwaukee (MKE) to Barcelona-El Prat (BCN)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/25. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — BCN
Apr 14 — Apr 211
Tue 4/14
Tue 4/21
1 adult, Economy
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Cheap flight deals from Milwaukee to Barcelona-El Prat

Cheapest flights from Milwaukee to Barcelona-El Prat
Explore the most affordable flight options available from Milwaukee to Barcelona-El Prat. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 15, 2026.

This United Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/76:00 am
MKE
-
BCN
2 stops19h 20m
United Airlines
Fri 12/1110:30 am
BCN
-
MKE
2 stops19h 09m
United Airlines
Deal found 3/12$678
This American Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/306:41 pm
MKE
-
BCN
2 stops14h 14m
American Airlines
Wed 10/148:50 am
BCN
-
MKE
2 stops15h 50m
American Airlines
Deal found 3/12$680
This KLM deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/306:25 pm
MKE
-
BCN
2 stops13h 25m
Multiple Airlines
Wed 10/1410:55 am
BCN
-
MKE
1 stop16h 13m
Multiple Airlines
Deal found 3/12$703
This American Airlines deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/276:48 pm
MKE
-
BCN
2 stops14h 42m
American Airlines
Fri 12/111:30 pm
BCN
-
MKE
2 stops17h 31m
American Airlines
Deal found 3/13$724
This United Airlines deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/275:21 pm
MKE
-
BCN
1 stop12h 49m
United Airlines
Fri 12/116:50 am
BCN
-
MKE
2 stops16h 45m
United Airlines
Deal found 3/14$726
This United Airlines deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/272:32 pm
MKE
-
BCN
1 stop15h 43m
United Airlines
Mon 5/412:15 pm
BCN
-
MKE
2 stops33h 12m
United Airlines
Deal found 3/13$733
This KLM deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2712:20 pm
MKE
-
BCN
1 stop13h 20m
KLM
Fri 12/1110:55 am
BCN
-
MKE
1 stop17h 13m
KLM
Deal found 3/13$749
This Booking.com deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2710:45 am
MKE
-
BCN
2 stops39h 35m
Air Canada
Mon 5/412:15 pm
BCN
-
MKE
2 stops39h 33m
Air Canada
Deal found 3/13$756

Find flight deals from Milwaukee to Barcelona-El Prat

Discover tips and strategies to find the most affordable flight options for your journey from Milwaukee (MKE) to Barcelona-El Prat (BCN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 15, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$733
(United Airlines)

One-way from

$353
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$888
Provider with most accurate pricing for Milwaukee-Mitchell-Barcelona-El Prat flight deals.
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Provider most trusted by Cheapflights users for Milwaukee-Mitchell-Barcelona-El Prat flights.
Search Deals
From Milwaukee-Mitchell to Barcelona-El Prat
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One-way flight from Milwaukee-Mitchell to Barcelona-El Prat
Search Deals
Highest demand for flights based on searches. 24% potential increase in price ($308 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($39 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Milwaukee to Barcelona-El Prat that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 15, 2026.
Use the filters below to find and compare flights from Milwaukee to Barcelona-El Prat Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Mon 4/27

2:32 pm-1:15 pm

1 stop15h 43m

Barcelona-El Prat

Mon 5/4

12:15 pm-2:27 pm

2 stops33h 12m

$733

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Sun 5/10

6:00 am-1:15 pm

1 stop24h 15m

Barcelona-El Prat

Thu 5/28

11:15 am-6:51 pm

2 stops14h 36m

$807

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Tue 5/12

4:34 pm-11:15 pm

2 stops23h 41m

Barcelona-El Prat

Tue 5/26

7:40 am-7:36 am

2 stops30h 56m

$842
Quickest round-trip

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Fri 4/17

4:26 pm-10:35 am

1 stop11h 09m

Barcelona-El Prat

Sat 4/25

7:40 am-5:11 pm

2 stops16h 31m

$891

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Tue 5/12

10:20 am-8:20 am

2 stops15h 00m

Barcelona-El Prat

Mon 5/25

1:50 pm-10:24 pm

2 stops15h 34m

$984

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Thu 5/21

2:55 pm-12:50 pm

1 stop14h 55m

Barcelona-El Prat

Sat 5/30

3:15 pm-8:49 am

2 stops24h 34m

$1,088

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Wed 3/25

5:51 pm-4:20 pm

2 stops16h 29m

Barcelona-El Prat

Sun 4/5

6:40 am-6:47 pm

2 stops19h 07m

$1,136

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Fri 7/31

9:41 am-9:45 am

1 stop17h 04m

Barcelona-El Prat

Mon 8/10

12:50 pm-8:51 am

1 stop27h 01m

$1,138

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Fri 7/3

2:50 pm-1:15 pm

1 stop15h 25m

Barcelona-El Prat

Sat 7/11

6:40 am-6:51 pm

2 stops19h 11m

$1,162

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Sun 3/29

6:15 am-8:45 am

1 stop19h 30m

Barcelona-El Prat

Tue 4/7

3:15 pm-10:04 am

1 stop25h 49m

$1,173

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/11

Showing 1-10 of 18 resultsSorted by cheapest first
1
2

Compare providers for flights from Milwaukee to Barcelona-El Prat

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Milwaukee to Barcelona-El Prat in March.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
OvagoPrice Accuracy2 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Milwaukee-Barcelona-El Prat Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Milwaukee-Barcelona-El Prat Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Milwaukee-Barcelona-El Prat Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Milwaukee-Barcelona-El Prat Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Milwaukee-Barcelona-El Prat Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Milwaukee to Barcelona-El Prat

Have a flexible travel schedule? Discover the best time to fly to Barcelona-El Prat from Milwaukee with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

What is the cheapest month to book a flight from Milwaukee to Barcelona-El Prat Airport?

Currently, February is the cheapest month in which you can book a flight from Milwaukee to Barcelona-El Prat Airport (average of $363). Flying from Milwaukee to Barcelona-El Prat Airport in June is currently the most expensive (average of $854). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Milwaukee to Barcelona-El Prat Airport?

Reviews of airlines servicing Barcelona-El Prat

Get insights into the airlines that provide service to Barcelona-El Prat. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Barcelona-El Prat. Reviews last updated March 15, 2026.
Read through reviews of airlines operating flights from Milwaukee to Barcelona-El Prat Airport, such as United Airlines,American Airlines, andBritish Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,428 reviews

Overall

7.4

Comfort

7.3

Food

6.6

Crew

8.1

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,428 reviews
United Airlines
7.4
Good
9,428 reviews

Overall

7.4

Comfort

7.3

Food

6.6

Crew

8.1

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
American Airlines
7.1
Good
11,472 reviews
United Airlines
7.4
Good
9,428 reviews

Overall

7.4

Comfort

7.3

Food

6.6

Crew

8.1

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
British Airways
6.7
Okay
7,791 reviews
United Airlines
7.4
Good
9,428 reviews

Overall

7.4

Comfort

7.3

Food

6.6

Crew

8.1

Boarding

7.7

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

Related info for your journey

Find useful and relevant information for your journey from Milwaukee to Barcelona-El Prat. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Milwaukee to Barcelona-El Prat?

    For a flight from Milwaukee to Barcelona-El Prat, you will be flying from Milwaukee-Mitchell. Milwaukee-Mitchell (MKE) is just 6.4 mi from the center of the city. Milwaukee-Mitchell is the only Milwaukee airport and it handles 0 outbound flights to Barcelona-El Prat per day. 3 airlines have flights to Barcelona-El Prat from Milwaukee-Mitchell on a regular basis.

  • How long is the flight from Milwaukee to Barcelona-El Prat Airport?

    Departing from Milwaukee to Barcelona-El Prat Airport will take you 15h 43m. The distance from Milwaukee to Barcelona-El Prat Airport is about 4368 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Milwaukee to Barcelona-El Prat Airport round-trip?

    Currently priced at $457, British Airways will fly you from Milwaukee to Barcelona-El Prat Airport and back. In addition to British Airways, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and American Airlines - these airlines can fly you to your destination from $499 and $609, respectively. British Airways is priced at 52% lower than the current average price of a flight leaving 3 months from now.

  • Can I find deals for flights from Milwaukee to Barcelona-El Prat that include hotel bookings?

    Yes. In addition to deals on Milwaukee to Barcelona-El Prat flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Milwaukee to Barcelona-El Prat?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Milwaukee to Barcelona-El Prat.

  • Can I find deals for business class flights from Milwaukee to Barcelona-El Prat?

    Yes. Cheapflights offers flight deals from Milwaukee to Barcelona-El Prat by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, February is the cheapest month in which you can book a flight from Milwaukee to Barcelona-El Prat Airport (average of $363). Flying from Milwaukee to Barcelona-El Prat Airport in June is currently the most expensive (average of $854). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Barcelona-El Prat Airport?

Book flights to Barcelona-El Prat Airport if you plan to visit one of these locations
Roses
Calella
L'Hospitalet de Llobregat
Cadaques
El Prat de Llobregat
Badalona
Pineda de Mar

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Alternative routes for Milwaukee to Barcelona-El Prat

See prices for flight routes from nearby airports that may be better suited for you.
O'Hare Intl to Barcelona-El Prat flights
Minneapolis to Barcelona-El Prat flights

Top 3 airlines flying from Milwaukee to Barcelona-El Prat

Discover the top 3 airlines that operate flights from Milwaukee to Barcelona-El Prat. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 15, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$457Average$813FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$499Average$754FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$609Average$775FlexibilityNo cancel feeOn-time71%

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