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Cheap flights from Milwaukee to Barcelona from $379

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Milwaukee to Barcelona departing on 9/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Milwaukee to Barcelona (MKE-BCN)

Cheap round-trip flights

Logo
5:52 pm - 9:35 amMKE-BCN
32h 43m2 stops
Logo
6:50 am - 9:47 pmBCN-MKE
21h 57m2 stops
$603
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Sat, Nov 22 - Tue, Dec 2
United Airlines Logo
5:52 pm - 9:35 amMKE-BCN
32h 43m2 stops
United Airlines Logo
9:55 am - 3:08 pmBCN-MKE
36h 13m3 stops
$609United Airlines
Find Deal
Sat, Nov 22 - Tue, Dec 2
KLM Logo
7:00 am - 8:00 amMKE-BCN
18h 00m1 stop
KLM Logo
10:15 am - 8:12 pmBCN-MKE
16h 57m1 stop
$683KLM
Find Deal
Fri, Feb 6 - Mon, Feb 16
British Airways Logo
3:37 pm - 4:30 pmMKE-BCN
17h 53m2 stops
British Airways Logo
6:40 am - 5:56 pmBCN-MKE
18h 16m2 stops
$687British Airways
Find Deal
Fri, Nov 7 - Tue, Nov 18
American Airlines Logo
1:14 pm - 1:40 pmMKE-BCN
17h 26m2 stops
American Airlines Logo
11:00 am - 10:18 pmBCN-MKE
18h 18m1 stop
$691American Airlines
Find Deal
Fri, Feb 6 - Mon, Feb 16
Delta Logo
7:00 am - 8:00 amMKE-BCN
18h 00m2 stops
Delta Logo
10:15 am - 8:49 amBCN-MKE
29h 34m2 stops
$707Delta
Find Deal
Fri, Feb 6 - Mon, Feb 16
British Airways Logo
2:23 pm - 12:05 pmMKE-BCN
14h 42m2 stops
British Airways Logo
10:45 am - 4:04 pmBCN-MKE
12h 19m1 stop
$750British Airways
Find Deal
Wed, Sep 17 - Wed, Sep 24
Delta Logo
7:20 am - 11:55 amMKE-BCN
21h 35m1 stop
Delta Logo
9:30 am - 7:08 pmBCN-MKE
16h 38m1 stop
$763Delta
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Mon, Sep 15 - Wed, Sep 24
KLM Logo
12:20 pm - 8:40 amMKE-BCN
13h 20m1 stop
KLM Logo
10:15 am - 8:06 pmBCN-MKE
16h 51m1 stop
$853KLM
Find Deal
Wed, Dec 17 - Tue, Dec 23
American Airlines Logo
10:11 am - 9:00 amMKE-BCN
15h 49m1 stop
American Airlines Logo
6:40 am - 5:49 pmBCN-MKE
18h 09m2 stops
$876American Airlines
Find Deal
Wed, Dec 17 - Tue, Dec 23

Delta flights from Milwaukee to Barcelona-El Prat Airport

Our best Delta deals on Milwaukee to Barcelona-El Prat Airport flight tickets
Delta
Feb 6
MKE7:00 amMilwaukee-Mitchell
18h 00m
2 stops
BCN8:00 amBarcelona-El Prat
Feb 16
BCN10:15 amBarcelona-El Prat
29h 34m
2 stops
MKE8:49 amMilwaukee-Mitchell
$707
Find similar
Delta
Sep 15
MKE7:20 amMilwaukee-Mitchell
21h 35m
1 stop
BCN11:55 amBarcelona-El Prat
Sep 24
BCN9:30 amBarcelona-El Prat
16h 38m
1 stop
MKE7:08 pmMilwaukee-Mitchell
$763
Find similar
Delta
Sep 15
MKE7:20 amMilwaukee-Mitchell
21h 35m
1 stop
BCN11:55 amBarcelona-El Prat
Sep 25
BCN9:00 amBarcelona-El Prat
18h 49m
2 stops
MKE8:49 pmMilwaukee-Mitchell
$767
Find similar

KLM flights from Milwaukee to Barcelona-El Prat Airport

Our best KLM deals on Milwaukee to Barcelona-El Prat Airport flight tickets
KLM
Feb 6
MKE7:00 amMilwaukee-Mitchell
18h 00m
1 stop
BCN8:00 amBarcelona-El Prat
Feb 16
BCN10:15 amBarcelona-El Prat
16h 57m
1 stop
MKE8:12 pmMilwaukee-Mitchell
$683
Find similar
KLM
Dec 17
MKE12:20 pmMilwaukee-Mitchell
13h 20m
1 stop
BCN8:40 amBarcelona-El Prat
Dec 23
BCN10:15 amBarcelona-El Prat
16h 51m
1 stop
MKE8:06 pmMilwaukee-Mitchell
$853
Find similar
KLM
Sep 2
MKE11:45 amMilwaukee-Mitchell
12h 30m
1 stop
BCN7:15 amBarcelona-El Prat
Sep 14
BCN9:30 amBarcelona-El Prat
16h 38m
1 stop
MKE7:08 pmMilwaukee-Mitchell
$1,141
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Milwaukee to Barcelona-El Prat Airport 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, momondo users made 832,500 searches. Data last updated August 27, 2025.
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

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Sat 11/22

5:52 pm-9:35 am

2 stops32h 43m

Barcelona-El Prat

Tue 12/2

6:50 am-9:47 pm

2 stops21h 57m

$603

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Sat 11/22

5:52 pm-9:35 am

2 stops32h 43m

Barcelona-El Prat

Tue 12/2

9:55 am-3:08 pm

3 stops36h 13m

$609

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Fri 2/6

7:00 am-8:00 am

1 stop18h 00m

Barcelona-El Prat

Mon 2/16

10:15 am-8:12 pm

1 stop16h 57m

$683

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Fri 11/7

3:37 pm-4:30 pm

2 stops17h 53m

Barcelona-El Prat

Tue 11/18

6:40 am-5:56 pm

2 stops18h 16m

$687

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Fri 2/6

1:14 pm-1:40 pm

2 stops17h 26m

Barcelona-El Prat

Mon 2/16

11:00 am-10:18 pm

1 stop18h 18m

$691

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Fri 2/6

7:00 am-8:00 am

2 stops18h 00m

Barcelona-El Prat

Mon 2/16

10:15 am-8:49 am

2 stops29h 34m

$707

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Wed 9/17

2:23 pm-12:05 pm

2 stops14h 42m

Barcelona-El Prat

Wed 9/24

10:45 am-4:04 pm

1 stop12h 19m

$750

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Mon 9/15

7:20 am-11:55 am

1 stop21h 35m

Barcelona-El Prat

Wed 9/24

9:30 am-7:08 pm

1 stop16h 38m

$763

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Wed 12/17

12:20 pm-8:40 am

1 stop13h 20m

Barcelona-El Prat

Tue 12/23

10:15 am-8:06 pm

1 stop16h 51m

$853

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Wed 12/17

10:11 am-9:00 am

1 stop15h 49m

Barcelona-El Prat

Tue 12/23

6:40 am-5:49 pm

2 stops18h 09m

$876

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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See travel insights to Barcelona from

How to get the cheapest flight ticket from Milwaukee to Barcelona-El Prat Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Barcelona-El Prat Airport?

The cheapest month to fly to Barcelona-El Prat Airport from Milwaukee is in November. Flight prices, which tend to average around $574, are often lower during this time because this is during the off-season. If you aren’t able to travel during the month of November, then book flights to Barcelona-El Prat Airport from Milwaukee during October instead. Flights to Barcelona-El Prat Airport in October, while not as cheap as those in November, still average around $763.

What is the cheapest day to depart on your flight to Barcelona-El Prat Airport?

The cheapest day to depart on your flight to Barcelona-El Prat Airport is on a Monday when prices can be found for as low as $631. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around $1,217. These prices are subject to change though, so be sure to set up a Price Alert for flights to Barcelona-El Prat Airport.

What is the cheapest time of day to depart on your flight to Barcelona-El Prat Airport?

Flying to Barcelona-El Prat Airport from Milwaukee in the evening is the least expensive time of day to depart. momondo users have found prices as low as $498 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $987 on average. Flights to Barcelona-El Prat Airport from Milwaukee in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Can stopping save me money on Milwaukee to Barcelona-El Prat Airport flights?

You could potentially save up to 45% on your flight if you consider stops on a Milwaukee to Barcelona-El Prat Airport flight.

When to book flights from Milwaukee to Barcelona-El Prat Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Milwaukee to Barcelona-El Prat Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Milwaukee to Barcelona-El Prat Airport (MKE to BCN) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Milwaukee to Barcelona-El Prat Airport

Direct flights

None
There are no direct flights from Milwaukee to Barcelona-El Prat Airport. There are no popular flight routes from Milwaukee to Barcelona-El Prat Airport.
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  • How far is Milwaukee-Mitchell to Barcelona-El Prat by plane?

    There are 4365.3 mi between Milwaukee-Mitchell and Barcelona-El Prat. In terms of flight time, this usually takes a little over 11h 00m.

  • When did momondo last update prices for flights from Milwaukee-Mitchell Airport to Barcelona-El Prat Airport?

    Prices for flights from Milwaukee-Mitchell Airport to Barcelona-El Prat Airport were last updated today.

  • How many operators does momondo search for flights from Milwaukee-Mitchell Airport to Barcelona-El Prat Airport?

  • How old do you have to be to fly from Milwaukee-Mitchell Airport to Barcelona-El Prat Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Milwaukee-Mitchell Airport to Barcelona-El Prat Airport.

  • What documentation or ID do you need to fly to Barcelona-El Prat Airport?

    The travel and health documents you'll need for your trip to Barcelona-El Prat Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Barcelona-El Prat Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Milwaukee to Barcelona-El Prat Airport?

Best airlines flying from Milwaukee to Barcelona-El Prat Airport

Compare and see reviews for airlines that fly from Milwaukee to Barcelona-El Prat Airport with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $574Free CancellationRating
7.4
8,945 reviews
Search United Airlines flights
American AirlinesPriceFrom $637Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $676Free CancellationRating
7.9
7,977 reviews
Search Delta flights
British AirwaysPriceFrom $689Free CancellationRating
6.7
7,310 reviews
Search British Airways flights

Traveling to a place near Barcelona?

Book flights to Barcelona if you plan to visit one of these locations
Lloret de Mar
Sitges
Salou
Tossa de Mar
L'Hospitalet de Llobregat
Tarragona
El Prat de Llobregat
Castelldefels
Santa Susanna
Badalona
Cambrils
Calella
Cadaques
Empuriabrava
Pineda de Mar
Roses
Pals
Malgrat de Mar
Palafrugell
Tortosa

Why use momondo?

Why should I use momondo to find a flight deal from Milwaukee to Barcelona?

It is quick and easy to find Milwaukee to Barcelona flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Barcelona that suits you.

Can I find flights from Milwaukee to Barcelona with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Barcelona from Milwaukee with this policy.

How can momondo help me find flights from Milwaukee to Barcelona?

momondo helps you find the best flight between Milwaukee and Barcelona by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Milwaukee to Barcelona right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Barcelona from Milwaukee. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Barcelona-El Prat Airport trip

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