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$659+ Cheap flights from Milwaukee (MKE) to Barcelona

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/2. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — BCN
Apr 29 — May 61
Tue 4/29
Tue 5/6
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 April 24, 2025.

Round-trip from

$659
(United Airlines)

Popular in

June

Cheapest in

November

Average price

$798
From Milwaukee-Mitchell to Barcelona
Search Deals
Highest demand for flights based on searches. 25% potential increase in price ($334 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($43 potential savings vs. average RT price).
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Average for round-trip flights in April 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 April 24, 2025.

This United Airlines deal was found by Cheapflights users on 4/24. 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.
Tue 9/25:40 pmMKE - BCN
1 stop12h 35mUnited Airlines
Tue 9/2312:10 pmBCN - MKE
2 stops29h 03mUnited Airlines
Deal found 4/24$659
This British Airways deal was found by Cheapflights users on 4/24. 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.
Tue 9/22:50 pmMKE - BCN
1 stop12h 40mBritish Airways
Tue 9/2310:45 amBCN - MKE
1 stop17h 42mBritish Airways
Deal found 4/24$682
This Air Canada deal was found by Cheapflights users on 4/23. 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.
Tue 9/27:00 amMKE - BCN
2 stops17h 50mMultiple Airlines
Tue 9/2310:20 amBCN - MKE
3 stops18h 36mMultiple Airlines
Deal found 4/23$697
This Air Canada deal was found by Cheapflights users on 4/23. 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.
Tue 9/28:30 amMKE - BCN
3 stops16h 20mAir Canada
Tue 9/2310:20 amBCN - MKE
3 stops18h 36mAir Canada
Deal found 4/23$1,005
This KLM deal was found by Cheapflights users on 4/23. 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.
Sat 8/307:00 amMKE - BCN
1 stop16h 00mKLM
Sat 9/69:00 amBCN - MKE
1 stop17h 45mKLM
Deal found 4/23$1,012
This American Airlines deal was found by Cheapflights users on 4/23. 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.
Thu 6/262:50 pmMKE - BCN
2 stops14h 25mAmerican Airlines
Fri 7/410:45 amBCN - MKE
1 stop12h 58mAmerican Airlines
Deal found 4/23$1,236
This Delta deal was found by Cheapflights users on 4/23. 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.
Thu 5/226:34 pmMKE - BCN
2 stops14h 51mDelta
Tue 5/2711:35 amBCN - MKE
1 stop19h 19mDelta
Deal found 4/23$1,306
This Gurufare deal was found by Cheapflights users on 4/23. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/241:48 pmMKE - BCN
2 stops25h 47mAer Lingus
Thu 5/111:05 pmBCN - MKE
2 stops30h 55mAer Lingus
Deal found 4/23$1,337

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 April 24, 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

Tue 9/2

5:40 pm-1:15 pm

1 stop12h 35m

Barcelona-El Prat

Tue 9/23

12:10 pm-10:13 am

2 stops29h 03m

$659

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Tue 9/2

2:50 pm-10:30 am

1 stop12h 40m

Barcelona-El Prat

Tue 9/23

10:45 am-9:27 pm

1 stop17h 42m

$682

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Tue 9/2

7:00 am-7:50 am

2 stops17h 50m

Barcelona-El Prat

Tue 9/23

10:20 am-9:56 pm

3 stops18h 36m

$697

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Tue 9/2

8:30 am-7:50 am

3 stops16h 20m

Barcelona-El Prat

Tue 9/23

10:20 am-9:56 pm

3 stops18h 36m

$1,005

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Sat 8/30

7:00 am-6:00 am

1 stop16h 00m

Barcelona-El Prat

Sat 9/6

9:00 am-7:45 pm

1 stop17h 45m

$1,012

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Thu 6/26

2:50 pm-12:15 pm

2 stops14h 25m

Barcelona-El Prat

Fri 7/4

10:45 am-4:43 pm

1 stop12h 58m

$1,236

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Thu 5/22

6:34 pm-4:25 pm

2 stops14h 51m

Barcelona-El Prat

Tue 5/27

11:35 am-11:54 pm

1 stop19h 19m

$1,306

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Tue 6/24

1:06 pm-9:05 am

2 stops12h 59m

$853

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Tue 6/24

8:35 am-7:50 am

3 stops16h 15m

$860

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/23

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 $1,079). 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 April 24, 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.

Rainfall in Barcelona by month

Plan your trip to Barcelona by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Barcelona ranges from 0.8 - 3.6 inches per month. October is typically the wettest month, when rainfall can reach 3.6 in. July is typically the driest time to visit Barcelona when rainfall is around 0.8 in.

Temperature in Barcelona by month

Plan your trip to Barcelona by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Barcelona, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

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 April 24, 2025.
Delta
8.0
Very good
7,920 reviews

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,920 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,333 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,685 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air Canada
7.0
Good
9,195 reviews
Delta
8.0
Very good
7,920 reviews

Food

7.3

Crew

8.5

Comfort

7.9

Boarding

8.2

Entertainment

7.9

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 $659, 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 Air Canada - these airlines can fly you to your destination from $682 and $1,005, respectively. United Airlines is currently priced 31% 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, 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 $1,079). 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 April 24, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$570Average$889FlexibilityNo cancel feeOn-time69%
DeltaCheapest$572Average$855FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$631Average$856FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$759Average$1,330FlexibilityNo cancel feeOn-time71%

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