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$340+ 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 4/22. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — BCN
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
1 adult, Economy
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Cheap 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 December 15, 2025.

This American Airlines deal was found by Cheapflights users on 12/15. 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 12/174:23 pmMKE - BCN
2 stops14h 17mAmerican Airlines
Tue 12/2312:30 pmBCN - MKE
2 stops17h 30mAmerican Airlines
Deal found 12/15$827
This oojo deal was found by Cheapflights users on 12/13. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/174:23 pmMKE - BCN
2 stops23h 07mBritish Airways
Tue 12/236:40 amBCN - MKE
2 stops18h 09mBritish Airways
Deal found 12/13$925
This Finnair deal was found by Cheapflights users on 12/13. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1710:32 amMKE - BCN
1 stop15h 28mMultiple Airlines
Tue 12/236:35 pmBCN - MKE
2 stops30h 11mMultiple Airlines
Deal found 12/13$1,062
This Ovago deal was found by Cheapflights users on 12/15. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1711:25 amMKE - BCN
1 stop14h 35mLufthansa
Tue 12/236:50 amBCN - MKE
2 stops19h 03mLufthansa
Deal found 12/15$1,256
This United Airlines deal was found by Cheapflights users on 12/13. 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.
Sun 12/145:00 amMKE - BCN
2 stops21h 00mUnited Airlines
Sat 12/201:55 pmBCN - MKE
2 stops38h 16mUnited Airlines
Deal found 12/13$1,281
This Delta deal was found by Cheapflights users on 12/15. 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.
Wed 12/177:00 amMKE - BCN
1 stop18h 00mDelta
Tue 12/2310:55 amBCN - MKE
1 stop19h 56mDelta
Deal found 12/15$1,352
This Finnair deal was found by Cheapflights users on 12/13. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1410:15 amMKE - BCN
1 stop15h 45mMultiple Airlines
Sat 12/206:35 pmBCN - MKE
2 stops30h 07mMultiple Airlines
Deal found 12/13$1,402
This Air Canada deal was found by Cheapflights users on 12/13. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1710:54 amMKE - BCN
3 stops15h 41mAir Canada
Tue 12/239:55 amBCN - MKE
3 stops19h 18mAir Canada
Deal found 12/13$2,334

Find 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 December 15, 2025.

Round-trip from

$421
(Kiwi.com)

One-way from

$340
(oojo)

Popular in

June

Cheapest in

November

Average price

$1,292
From Milwaukee-Mitchell to Barcelona
Search Deals
One-way flight from Milwaukee-Mitchell to Barcelona
Search Deals
Highest demand for flights based on searches. 23% potential increase in price ($294 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($38 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
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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 December 15, 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

Wed 3/4

7:00 am-8:20 am

2 stops18h 20m

Barcelona-El Prat

Fri 3/13

12:35 pm-4:33 pm

2 stops33h 58m

$469

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Tue 3/3

6:00 am-8:00 am

1 stop19h 00m

Barcelona-El Prat

Tue 3/10

9:15 am-9:39 pm

1 stop18h 24m

$474

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Fri 2/6

6:40 am-8:50 am

1 stop19h 10m

Barcelona-El Prat

Mon 2/16

10:40 am-10:04 pm

1 stop18h 24m

$475

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Tue 2/3

8:33 am-9:00 am

2 stops17h 27m

Barcelona-El Prat

Sat 2/14

11:00 am-8:55 pm

2 stops16h 55m

$475

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Mon 2/9

6:00 am-8:00 am

1 stop19h 00m

Barcelona-El Prat

Tue 2/17

10:15 am-10:30 am

1 stop31h 15m

$475

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Sun 1/11

10:47 am-9:00 am

1 stop15h 13m

Barcelona-El Prat

Sun 1/25

12:30 pm-8:24 pm

1 stop14h 54m

$475

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Thu 2/5

10:30 am-9:00 am

2 stops15h 30m

Barcelona-El Prat

Fri 2/13

11:00 am-9:44 pm

2 stops17h 44m

$475

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Tue 1/20

11:30 am-11:05 pm

2 stops28h 35m

Barcelona-El Prat

Sun 1/25

6:50 am-9:59 pm

2 stops22h 09m

$476

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Fri 1/30

11:30 am-5:35 pm

2 stops23h 05m

Barcelona-El Prat

Sun 2/8

5:50 am-9:59 pm

2 stops23h 09m

$476

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Wed 2/4

11:21 am-8:00 am

1 stop13h 39m

Barcelona-El Prat

Tue 2/17

10:15 am-9:51 pm

1 stop18h 36m

$476

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/13

Showing 1-10 of 22 results
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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, August is the cheapest month in which you can book a flight from Milwaukee to Barcelona (average of $369). Flying from Milwaukee to Barcelona in June is currently the most expensive (average of $889). 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 December 15, 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 49% 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 December 15, 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
7.9
Good
8,008 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Food

7.3

Overall

7.9

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,008 reviews
Delta
7.9
Good
8,008 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Food

7.3

Overall

7.9

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,092 reviews
Delta
7.9
Good
8,008 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Food

7.3

Overall

7.9

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
American Airlines
7.2
Good
11,049 reviews
Delta
7.9
Good
8,008 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Food

7.3

Overall

7.9

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
British Airways
6.7
Okay
7,576 reviews
Delta
7.9
Good
8,008 reviews

Comfort

7.9

Crew

8.5

Boarding

8.1

Food

7.3

Overall

7.9

Entertainment

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

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.

  • How long is the flight from Milwaukee to Barcelona?

    Airlines like United Airlines and Delta fly from Milwaukee to Barcelona in about 18h 20m. The time it takes to get you to your destination can typically vary by up to 40m. The distance from Milwaukee to Barcelona 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 round-trip?

    Currently priced at $508, 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 American Airlines and Delta - these airlines can fly you to your destination from $609 and $676, respectively. United Airlines is currently priced 48% below the average price you’ll pay for this route.

  • 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, August is the cheapest month in which you can book a flight from Milwaukee to Barcelona (average of $369). Flying from Milwaukee to Barcelona in June is currently the most expensive (average of $889). 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

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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 December 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$508Average$790FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$609Average$929FlexibilityNo cancel feeOn-time71%
DeltaCheapest$676Average$866FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$689Average$871FlexibilityNo cancel feeOn-time70%

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