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$515+ Cheap flights from Milwaukee (MKE) to Barcelona

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 8/24. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — BCN
jul. 8 — jul. 151
mar. 7/8
mar. 7/15
1 adult, Economy
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Cheap flight deals from Milwaukee to Barcelona

Discover tips and strategies to find the most affordable flight options for your journey from Milwaukee (MKE) to Barcelona (S37). 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 julio 3, 2025.

Round-trip from

$615
(United Airlines)

One-way from

$515
(FlightHub)

Popular in

June

Cheapest in

November

Average price

$1,183
From Milwaukee-Mitchell to Barcelona
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One-way flight from Milwaukee-Mitchell to Barcelona
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Highest demand for flights based on searches. 24% potential increase in price ($308 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($39 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Milwaukee to Barcelona

Cheapest flights from Milwaukee to Barcelona
Explore the most affordable flight options available from Milwaukee to Barcelona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 3, 2025.

This United Airlines deal was found by Cheapflights users on 7/3. 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.
mar. 9/25:00 amMKE - BCN
2 stops19h 50mUnited Airlines
mar. 9/2312:10 pmBCN - MKE
2 stops30h 20mUnited Airlines
Deal found 7/3$615
This British Airways deal was found by Cheapflights users on 7/3. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/174:56 pmMKE - BCN
1 stop10h 34mBritish Airways
vie. 8/2910:45 amBCN - MKE
1 stop15h 33mBritish Airways
Deal found 7/3$638
This American Airlines deal was found by Cheapflights users on 7/1. 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.
mar. 9/29:58 amMKE - BCN
2 stops16h 07mAmerican Airlines
mar. 9/2312:50 pmBCN - MKE
2 stops17h 10mAmerican Airlines
Deal found 7/1$642
This Air Canada deal was found by Cheapflights users on 7/2. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/175:41 pmMKE - BCN
2 stops31h 09mAir Canada
lun. 10/2712:35 pmBCN - MKE
2 stops34h 07mAir Canada
Deal found 7/2$665
This Gotogate deal was found by Cheapflights users on 7/3. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/25:41 pmMKE - BCN
2 stops31h 09mMultiple Airlines
dom. 8/316:50 amBCN - MKE
2 stops17h 20mMultiple Airlines
Deal found 7/3$708
This Delta deal was found by Cheapflights users on 7/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/2111:25 amMKE - BCN
1 stop12h 50mDelta
vie. 8/2911:35 amBCN - MKE
2 stops16h 58mDelta
Deal found 7/2$757
This Cheapflightsfares deal was found by Cheapflights users on 7/3. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/291:37 pmMKE - BCN
2 stops25h 48mAer Lingus
lun. 8/1111:05 pmBCN - MKE
2 stops27h 55mAer Lingus
Deal found 7/3$927

Cheapflights Fare Finder

Customize your flight search to find flights from Milwaukee to Barcelona 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 julio 3, 2025.
Use the filters below to find and compare flights from Milwaukee to Barcelona that are best for you.

Fly from

Milwaukee

Fly to

Barcelona

Route

Depart

Return

Price

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

mar. 9/2

5:00 am-7:50 am

2 stops19h 50m

Barcelona-El Prat

mar. 9/23

12:10 pm-11:30 am

2 stops30h 20m

$615

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

dom. 8/17

4:56 pm-10:30 am

1 stop10h 34m

Barcelona-El Prat

vie. 8/29

10:45 am-7:18 pm

1 stop15h 33m

$638

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

mar. 9/2

1:06 pm-10:30 am

1 stop14h 24m

Barcelona-El Prat

mar. 9/23

12:50 pm-11:00 pm

2 stops17h 10m

$642

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

vie. 10/17

5:41 pm-7:50 am

2 stops31h 09m

Barcelona-El Prat

lun. 10/27

12:35 pm-4:42 pm

2 stops34h 07m

$665

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

sáb. 8/2

5:41 pm-7:50 am

2 stops31h 09m

Barcelona-El Prat

dom. 8/31

6:50 am-5:10 pm

2 stops17h 20m

$708

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

jue. 8/21

11:25 am-7:15 am

1 stop12h 50m

Barcelona-El Prat

vie. 8/29

11:35 am-9:33 pm

2 stops16h 58m

$757

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

mar. 7/29

1:37 pm-10:25 pm

2 stops25h 48m

Barcelona-El Prat

lun. 8/11

11:05 pm-8:00 pm

2 stops27h 55m

$927

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

dom. 8/24

1:06 pm-10:20 am

2 stops14h 14m

$515

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

dom. 8/24

5:27 am-9:20 am

1 stop20h 53m

$558

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

dom. 8/24

7:00 am-7:50 am

3 stops17h 50m

$565

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/2

Best time to book a flight from Milwaukee to Barcelona

Have a flexible travel schedule? Discover the best time to fly to Barcelona 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

What is the cheapest month to book a flight from Milwaukee to Barcelona?

Currently, January is the cheapest month in which you can book a flight from Milwaukee to Barcelona (average of $523). Flying from Milwaukee to Barcelona in June is currently the most expensive (average of $1,059). 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.

What is the cheapest time of day to fly from MKE to BCN?

Find hourly flight availability from Milwaukee to Barcelona. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 3, 2025.

When flying from Milwaukee to Barcelona, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 50% versus a flight in the afternoon.

Reviews of airlines servicing Barcelona

Get insights into the airlines that provide service to Barcelona. 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. Reviews last updated julio 3, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from Milwaukee to Barcelona by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,982 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,861 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air Canada
7.1
Good
9,681 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Aer Lingus
7.1
Good
1,144 reviews
Delta
8.0
Very good
7,982 reviews

Boarding

8.2

Entertainment

7.9

Crew

8.5

Food

7.3

Overall

8.0

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

Find useful and relevant information for your journey from Milwaukee to Barcelona. 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?

    If you book a flight to Barcelona from Milwaukee, you will be flying from Milwaukee-Mitchell, which is the city’s only airport. Milwaukee-Mitchell (MKE) is located 6.4 mi from the center of Milwaukee. There are 0 flights from Milwaukee-Mitchell to Barcelona per day from 4 different airlines.

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

    Currently priced at $615, United Airlines will fly you from Milwaukee to Barcelona and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from British Airways and American Airlines - these airlines can fly you to your destination from $638 and $642, respectively. United Airlines is currently priced 35% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Milwaukee to Barcelona one-way?

    To fly one-way, consider booking your trip with Aer Lingus, which is currently one of the cheapest options available, starting at $515. Delta flights start at $558 while deals on Air Canada start at $565 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Milwaukee to Barcelona 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?

    Currently, January is the cheapest month in which you can book a flight from Milwaukee to Barcelona (average of $523). Flying from Milwaukee to Barcelona in June is currently the most expensive (average of $1,059). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 4 airlines flying from Milwaukee to Barcelona

Discover the top 4 airlines that operate flights from Milwaukee to Barcelona. 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 julio 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$570Average$798FlexibilityNo cancel feeOn-time69%
DeltaCheapest$572Average$855FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$682Average$1,044FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$689Average$949FlexibilityNo cancel feeOn-time70%

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