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Cheap flights from Milwaukee to Barcelona from $323

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 12/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Milwaukee to Barcelona

Cheap round-trip flights

Enter your travel dates to find the best prices.
KLM Logo
7:02 am - 8:00 amMKE-BCN
17h 58m1 stop
KLM Logo
10:15 am - 8:38 pmBCN-MKE
17h 23m1 stop
$484KLM
Find Deal
Fri, Feb 6 - Mon, Feb 16
Multiple Airlines Logo
12:17 pm - 11:10 amMKE-BCN
15h 53m2 stops
Multiple Airlines Logo
10:15 am - 8:38 pmBCN-MKE
17h 23m1 stop
$487Multiple Airlines
Find Deal
Fri, Feb 6 - Mon, Feb 16
Lufthansa Logo
2:32 pm - 11:05 pmMKE-BCN
25h 33m2 stops
Lufthansa Logo
5:50 am - 3:35 pmBCN-MKE
16h 45m2 stops
$488Lufthansa
Find Deal
Fri, Feb 6 - Mon, Feb 16
American Airlines Logo
6:38 pm - 5:55 pmMKE-BCN
16h 17m2 stops
American Airlines Logo
10:40 am - 8:46 pmBCN-MKE
16h 06m1 stop
$533American Airlines
Find Deal
Mon, Feb 16 - Sun, Mar 8
United Airlines Logo
6:00 am - 9:35 amMKE-BCN
20h 35m2 stops
United Airlines Logo
5:50 am - 5:48 pmBCN-MKE
18h 58m2 stops
$536United Airlines
Find Deal
Mon, Feb 16 - Sun, Mar 8
United Airlines Logo
1:25 pm - 2:05 pmMKE-BCN
17h 40m2 stops
United Airlines Logo
5:50 am - 7:51 pmBCN-MKE
21h 01m2 stops
$544United Airlines
Find Deal
Fri, Feb 27 - Sun, Mar 8
American Airlines Logo
4:46 pm - 4:30 pmMKE-BCN
16h 44m2 stops
American Airlines Logo
10:40 am - 8:46 pmBCN-MKE
16h 06m1 stop
$583American Airlines
Find Deal
Fri, Feb 27 - Sun, Mar 8
British Airways Logo
4:46 pm - 7:10 pmMKE-BCN
19h 24m2 stops
British Airways Logo
6:40 am - 8:16 pmBCN-MKE
20h 36m2 stops
$597British Airways
Find Deal
Sat, Feb 28 - Sun, Mar 8
British Airways Logo
5:00 pm - 7:45 pmMKE-BCN
20h 45m2 stops
British Airways Logo
6:40 am - 9:16 pmBCN-MKE
20h 36m2 stops
$765British Airways
Find Deal
Mon, Mar 23 - Fri, Mar 27
Delta Logo
11:15 am - 11:10 amMKE-BCN
17h 55m2 stops
Delta Logo
9:00 am - 8:12 pmBCN-MKE
18h 12m1 stop
$998Delta
Find Deal
Thu, Mar 26 - Sun, Apr 5

KLM flights from Milwaukee to Barcelona

Our best KLM deals on Milwaukee to Barcelona flight tickets
KLM
Feb 6
MKE7:02 amMilwaukee-Mitchell
17h 58m
1 stop
BCN8:00 amBarcelona-El Prat
Feb 16
BCN10:15 amBarcelona-El Prat
17h 23m
1 stop
MKE8:38 pmMilwaukee-Mitchell
$484
Find similar
KLM
Feb 16
MKE7:02 amMilwaukee-Mitchell
17h 58m
1 stop
BCN8:00 amBarcelona-El Prat
Mar 8
BCN10:15 amBarcelona-El Prat
15h 57m
1 stop
MKE8:12 pmMilwaukee-Mitchell
$534
Find similar

Lufthansa flights from Milwaukee to Barcelona

Our best Lufthansa deals on Milwaukee to Barcelona flight tickets
Lufthansa
Feb 6
MKE2:32 pmMilwaukee-Mitchell
25h 33m
2 stops
BCN11:05 pmBarcelona-El Prat
Feb 16
BCN5:50 amBarcelona-El Prat
16h 45m
2 stops
MKE3:35 pmMilwaukee-Mitchell
$488
Find similar
Lufthansa
Feb 13
MKE1:25 pmMilwaukee-Mitchell
16h 45m
2 stops
BCN1:10 pmBarcelona-El Prat
Feb 22
BCN6:50 amBarcelona-El Prat
15h 45m
2 stops
MKE3:35 pmMilwaukee-Mitchell
$500
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated November 10, 2025.
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

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Fri 2/6

7:02 am-8:00 am

1 stop17h 58m

Barcelona-El Prat

Mon 2/16

10:15 am-8:38 pm

1 stop17h 23m

$484

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Fri 2/6

12:17 pm-11:10 am

2 stops15h 53m

Barcelona-El Prat

Mon 2/16

10:15 am-8:38 pm

1 stop17h 23m

$487

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Fri 2/6

2:32 pm-11:05 pm

2 stops25h 33m

Barcelona-El Prat

Mon 2/16

5:50 am-3:35 pm

2 stops16h 45m

$488

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Mon 2/16

6:38 pm-5:55 pm

2 stops16h 17m

Barcelona-El Prat

Sun 3/8

10:40 am-8:46 pm

1 stop16h 06m

$533

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Mon 2/16

6:00 am-9:35 am

2 stops20h 35m

Barcelona-El Prat

Sun 3/8

5:50 am-5:48 pm

2 stops18h 58m

$536

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Fri 2/27

1:25 pm-2:05 pm

2 stops17h 40m

Barcelona-El Prat

Sun 3/8

5:50 am-7:51 pm

2 stops21h 01m

$544

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Fri 2/27

4:46 pm-4:30 pm

2 stops16h 44m

Barcelona-El Prat

Sun 3/8

10:40 am-8:46 pm

1 stop16h 06m

$583

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Sat 2/28

4:46 pm-7:10 pm

2 stops19h 24m

Barcelona-El Prat

Sun 3/8

6:40 am-8:16 pm

2 stops20h 36m

$597

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Mon 3/23

5:00 pm-7:45 pm

2 stops20h 45m

Barcelona-El Prat

Fri 3/27

6:40 am-9:16 pm

2 stops20h 36m

$765

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Thu 3/26

11:15 am-11:10 am

2 stops17h 55m

Barcelona-El Prat

Sun 4/5

9:00 am-8:12 pm

1 stop18h 12m

$998

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Milwaukee to Barcelona

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 typical price of a round-trip flight between Milwaukee and Barcelona?

What is the cheapest month to fly to Barcelona?

The month of November is, on average, the cheapest month to fly to Barcelona from Milwaukee, with most prices found around $521. If you don’t want to visit Barcelona in November, then you should wait until October to fly from Milwaukee, when ticket prices are also cheap, with an average price of $704.

What is the cheapest day to depart on your flight to Barcelona?

The cheapest day to depart from Milwaukee to Barcelona is on a Monday when prices can be found for as low as $631. On the other hand, Thursday is the most expensive day to depart from Milwaukee because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,217.

What is the cheapest time of day to depart on your flight to Barcelona?

In the evening is the cheapest time of day to fly from Milwaukee to Barcelona when you can find flight prices for as low as $498. Flying to Barcelona in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $987 on average. Flights to Barcelona from Milwaukee in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Cheap Milwaukee to Barcelona flight deals and tips

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

Direct flights

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

    Milwaukee-Mitchell and Barcelona are 4365.8 mi apart from one another. In terms of flight time, this usually takes a little over 13h 58m.

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

    Prices for flights from Milwaukee-Mitchell Airport to Barcelona refresh daily.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Milwaukee-Mitchell Airport to Barcelona.

  • What documentation or ID do you need to fly to Barcelona?

    The travel and health documents required for your trip to Barcelona can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Barcelona. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Milwaukee to Barcelona

Compare and see reviews for airlines that fly from Milwaukee to Barcelona with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $508Free CancellationRating
7.4
9,011 reviews
Search United Airlines flights
American AirlinesPriceFrom $609Free CancellationRating
7.2
11,047 reviews
Search American Airlines flights
DeltaPriceFrom $676Free CancellationRating
7.9
8,004 reviews
Search Delta flights
British AirwaysPriceFrom $689Free CancellationRating
6.7
7,508 reviews
Search British Airways flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Milwaukee to Barcelona. momondo saves you time and could save you money on your trip.

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

Yes. momondo allows you to filter the results for Milwaukee to Barcelona flights to just show those with flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Barcelona from Milwaukee.

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

If you are not ready to book a flight from Milwaukee to Barcelona now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Barcelona and let you know when they change.

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Find better results for your trip to Spain

Fly into one of these airports located in Barcelona

Airports listed have a maximum distance of 46.7 mi from Barcelona
Barcelona-El Prat Airport
Girona Costa Brava Airport