Barcelona

$351+ 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 9/27. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — BCN
May 11 — May 181
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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 April 11, 2026.

This Air Canada deal was found by Cheapflights users on 4/10. 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 11/45:00 am
MKE
-
BCN
2 stops21h 35m
Air Canada
Wed 11/251:35 pm
BCN
-
MKE
2 stops40h 04m
Air Canada
Deal found 4/10$787
This Delta deal was found by Cheapflights users on 4/10. 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 11/47:00 am
MKE
-
BCN
1 stop18h 35m
Delta
Wed 11/2510:50 am
BCN
-
MKE
1 stop13h 55m
Delta
Deal found 4/10$799
This United Airlines deal was found by Cheapflights users on 4/10. 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 11/87:00 pm
MKE
-
BCN
1 stop11h 10m
United Airlines
Wed 11/253:05 pm
BCN
-
MKE
1 stop16h 04m
United Airlines
Deal found 4/10$803
This Delta deal was found by Cheapflights users on 4/10. 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 11/46:25 pm
MKE
-
BCN
2 stops12h 35m
Delta
Tue 11/2410:30 am
BCN
-
MKE
1 stop16h 38m
Delta
Deal found 4/10$804
This KAYAK deal was found by Cheapflights users on 4/7. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/711:15 am
MKE
-
BCN
2 stops17h 15m
Scandinavian Airlines
Sun 11/2212:20 pm
BCN
-
MKE
2 stops38h 48m
Scandinavian Airlines
Deal found 4/7$805
This United Airlines deal was found by Cheapflights users on 4/9. 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 9/217:00 pm
MKE
-
BCN
1 stop11h 15m
United Airlines
Thu 10/112:15 pm
BCN
-
MKE
2 stops18h 12m
United Airlines
Deal found 4/9$806
This United Airlines deal was found by Cheapflights users on 4/9. 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 9/215:29 pm
MKE
-
BCN
1 stop12h 46m
United Airlines
Wed 9/308:00 am
BCN
-
MKE
2 stops17h 08m
United Airlines
Deal found 4/9$807
This Air Canada deal was found by Cheapflights users on 4/10. 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 11/45:00 am
MKE
-
BCN
2 stops21h 35m
Air Canada
Thu 11/261:35 pm
BCN
-
MKE
2 stops16h 04m
Air Canada
Deal found 4/10$810
This United Airlines deal was found by Cheapflights users on 4/9. 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 9/217:30 am
MKE
-
BCN
2 stops17h 50m
United Airlines
Tue 9/298:00 am
BCN
-
MKE
2 stops17h 08m
United Airlines
Deal found 4/9$811
This United Airlines deal was found by Cheapflights users on 4/9. 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.
Wed 9/235:05 am
MKE
-
BCN
1 stop25h 10m
United Airlines
Thu 10/18:00 am
BCN
-
MKE
2 stops17h 39m
United Airlines
Deal found 4/9$812
This United Airlines deal was found by Cheapflights users on 4/9. 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.
Wed 9/232:40 pm
MKE
-
BCN
2 stops16h 25m
United Airlines
Tue 9/298:00 am
BCN
-
MKE
2 stops17h 08m
United Airlines
Deal found 4/9$816
This American Airlines deal was found by Cheapflights users on 4/8. 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 12/1111:05 am
BCN
-
MKE
2 stops19h 25m
American Airlines
Deal found 4/8$824

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 April 11, 2026.

Round-trip from

$806
(United Airlines)

One-way from

$351
(oojo)

Popular in

June

Cheapest in

November

Average price

$866
From Milwaukee-Mitchell to Barcelona
One-way flight from Milwaukee-Mitchell to Barcelona
Highest demand for flights based on searches. 27% potential increase in price ($339 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($42 potential savings vs. average RT price).
Average for round-trip flights in April 2026

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 11, 2026.
Use the filters below to find and compare flights from Milwaukee to Barcelona that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Thu 10/8

8:16 pm-6:20 pm

2 stops15h 04m

Barcelona-El Prat

Sun 10/18

7:50 am-7:40 pm

2 stops18h 50m

$887

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Sat 9/26

2:50 pm-2:25 pm

2 stops16h 35m

Barcelona-El Prat

Tue 9/29

12:15 pm-10:24 pm

2 stops17h 09m

$888
Quickest round-trip

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Tue 5/12

4:26 pm-10:55 am

1 stop11h 29m

Barcelona-El Prat

Tue 5/19

10:30 am-6:00 pm

1 stop14h 30m

$1,029

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Fri 7/31

4:52 pm-3:35 pm

2 stops15h 43m

Barcelona-El Prat

Mon 8/10

11:00 am-5:47 pm

1 stop13h 47m

$1,153

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Mon 8/31

4:15 pm-12:50 pm

1 stop13h 35m

Barcelona-El Prat

Sat 12/19

10:50 am-9:08 pm

1 stop17h 18m

$1,220

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Fri 6/5

7:00 am-11:15 pm

2 stops33h 15m

Barcelona-El Prat

Sun 6/14

7:40 am-8:45 am

2 stops32h 05m

$1,332

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Thu 10/8

11:25 am-10:35 am

2 stops16h 10m

Barcelona-El Prat

Sun 10/18

11:25 am-10:35 am

3 stops30h 10m

$1,348
Cheapest one-way

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Mon 5/4

4:26 pm-10:30 pm

2 stops23h 04m

$459
Quickest one-way

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Mon 5/4

4:26 pm-10:55 am

1 stop11h 29m

$557

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Sun 9/27

11:25 am-9:45 am

1 stop15h 20m

$603

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/10

Showing 1-10 of 12 resultsSorted by cheapest first
1
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, February is the cheapest month in which you can book a flight from Milwaukee to Barcelona (average of $363). Flying from Milwaukee to Barcelona in June is currently the most expensive (average of $837). 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?

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 11, 2026.
Get a feel of what it's like to fly with United Airlines,American Airlines, andBritish Airways 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.

Boarding

7.7

Entertainment

7.1

Overall

7.4

Food

6.6

Comfort

7.3

Crew

8.1

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

Boarding

7.7

Entertainment

7.1

Overall

7.4

Food

6.6

Comfort

7.3

Crew

8.1

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

Boarding

7.7

Entertainment

7.1

Overall

7.4

Food

6.6

Comfort

7.3

Crew

8.1

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

Boarding

7.7

Entertainment

7.1

Overall

7.4

Food

6.6

Comfort

7.3

Crew

8.1

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. 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 British Airways fly from Milwaukee to Barcelona in about 11h 29m. The time it takes to get you to your destination can typically vary by up to . The distance from Milwaukee to Barcelona is about 4368 mi.

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

    Currently priced at $457, British Airways will fly you from Milwaukee to Barcelona 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 currently priced 49% 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, February is the cheapest month in which you can book a flight from Milwaukee to Barcelona (average of $363). Flying from Milwaukee to Barcelona in June is currently the most expensive (average of $837). 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

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Alternative routes for Milwaukee to Barcelona

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Milwaukee to Barcelona

Discover the top 3 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 11, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$457Average$727FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$499Average$676FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$609Average$775FlexibilityNo cancel feeOn-time71%

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