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Cheap flights from Milwaukee to Barcelona from $352

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 9/29. 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.
United Airlines Logo
8:30 am - 1:15 pm
MKE
-
BCN
21h 45m
1 stop
United Airlines Logo
12:15 pm - 1:43 pm
BCN
-
MKE
32h 28m
2 stops
$783United Airlines
Mon, Sep 28 - Tue, Oct 6
United Airlines Logo
10:45 am - 1:15 pm
MKE
-
BCN
19h 30m
1 stop
United Airlines Logo
12:15 pm - 1:43 pm
BCN
-
MKE
32h 28m
2 stops
$784United Airlines
Tue, Sep 29 - Tue, Oct 6
United Airlines Logo
5:00 am - 8:00 am
MKE
-
BCN
20h 00m
2 stops
United Airlines Logo
12:15 pm - 1:43 pm
BCN
-
MKE
32h 28m
2 stops
$787United Airlines
Mon, Sep 28 - Tue, Oct 6
American Airlines Logo
6:05 am - 7:35 am
MKE
-
BCN
18h 30m
1 stop
American Airlines Logo
12:50 pm - 11:47 pm
BCN
-
MKE
17h 57m
1 stop
$788American Airlines
Mon, Sep 28 - Tue, Oct 6
American Airlines Logo
10:21 am - 7:35 am
MKE
-
BCN
14h 14m
1 stop
American Airlines Logo
7:40 am - 5:40 pm
BCN
-
MKE
17h 00m
2 stops
$789American Airlines
Mon, Sep 28 - Tue, Oct 6
American Airlines Logo
4:52 pm - 10:35 am
MKE
-
BCN
10h 43m
1 stop
American Airlines Logo
1:30 pm - 10:57 pm
BCN
-
MKE
16h 27m
1 stop
$791American Airlines
Tue, Sep 29 - Tue, Oct 6
British Airways Logo
4:52 pm - 2:15 pm
MKE
-
BCN
14h 23m
2 stops
British Airways Logo
9:45 am - 7:40 pm
BCN
-
MKE
16h 55m
2 stops
$792British Airways
Tue, Sep 29 - Tue, Oct 6
British Airways Logo
6:41 pm - 5:35 pm
MKE
-
BCN
15h 54m
2 stops
British Airways Logo
10:15 am - 7:40 pm
BCN
-
MKE
16h 25m
2 stops
$803British Airways
Mon, Sep 28 - Tue, Oct 6
Multiple Airlines Logo
10:42 am - 9:20 am
MKE
-
BCN
15h 38m
2 stops
Multiple Airlines Logo
6:40 am - 9:35 pm
BCN
-
MKE
21h 55m
3 stops
$859Multiple Airlines
Tue, Sep 29 - Tue, Oct 6
United Airlines Logo
6:15 am - 8:00 am
MKE
-
BCN
18h 45m
2 stops
United Airlines Logo
1:15 pm - 2:33 pm
BCN
-
MKE
32h 18m
2 stops
$878United Airlines
Tue, Aug 11 - Tue, Aug 18

Delta flights from Milwaukee to Barcelona

Our best Delta deals on Milwaukee to Barcelona flight tickets
Delta
Oct 8
MKE6:25 pmMilwaukee-Mitchell
14h 10m
2 stops
BCN3:35 pmBarcelona-El Prat
Oct 18
BCN10:55 amBarcelona-El Prat
16h 13m
1 stop
MKE8:08 pmMilwaukee-Mitchell
$936
Delta
Jul 3
MKE7:00 amMilwaukee-Mitchell
18h 45m
1 stop
BCN8:45 amBarcelona-El Prat
Jul 10
BCN11:30 amBarcelona-El Prat
19h 26m
1 stop
MKE11:56 pmMilwaukee-Mitchell
$1,045
Delta
Jul 3
MKE12:07 pmMilwaukee-Mitchell
16h 08m
2 stops
BCN11:15 amBarcelona-El Prat
Jul 9
BCN10:55 amBarcelona-El Prat
15h 29m
1 stop
MKE7:24 pmMilwaukee-Mitchell
$1,050

United Airlines flights from Milwaukee to Barcelona

Our best United Airlines deals on Milwaukee to Barcelona flight tickets
United Airlines
Sep 28
MKE8:30 amMilwaukee-Mitchell
21h 45m
1 stop
BCN1:15 pmBarcelona-El Prat
Oct 6
BCN12:15 pmBarcelona-El Prat
32h 28m
2 stops
MKE1:43 pmMilwaukee-Mitchell
$783
United Airlines
Sep 29
MKE10:45 amMilwaukee-Mitchell
19h 30m
1 stop
BCN1:15 pmBarcelona-El Prat
Oct 6
BCN12:15 pmBarcelona-El Prat
32h 28m
2 stops
MKE1:43 pmMilwaukee-Mitchell
$784
United Airlines
Sep 28
MKE5:00 amMilwaukee-Mitchell
20h 00m
2 stops
BCN8:00 amBarcelona-El Prat
Oct 6
BCN12:15 pmBarcelona-El Prat
32h 28m
2 stops
MKE1:43 pmMilwaukee-Mitchell
$787

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 May 18, 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

Mon 9/28

8:30 am-1:15 pm

1 stop21h 45m

Barcelona-El Prat

Tue 10/6

12:15 pm-1:43 pm

2 stops32h 28m

$783

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Tue 9/29

10:45 am-1:15 pm

1 stop19h 30m

Barcelona-El Prat

Tue 10/6

12:15 pm-1:43 pm

2 stops32h 28m

$784

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Mon 9/28

5:00 am-8:00 am

2 stops20h 00m

Barcelona-El Prat

Tue 10/6

12:15 pm-1:43 pm

2 stops32h 28m

$787

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Mon 9/28

6:05 am-7:35 am

1 stop18h 30m

Barcelona-El Prat

Tue 10/6

12:50 pm-11:47 pm

1 stop17h 57m

$788

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Mon 9/28

10:21 am-7:35 am

1 stop14h 14m

Barcelona-El Prat

Tue 10/6

7:40 am-5:40 pm

2 stops17h 00m

$789
Quickest round-trip

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Tue 9/29

4:52 pm-10:35 am

1 stop10h 43m

Barcelona-El Prat

Tue 10/6

1:30 pm-10:57 pm

1 stop16h 27m

$791

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Tue 9/29

4:52 pm-2:15 pm

2 stops14h 23m

Barcelona-El Prat

Tue 10/6

9:45 am-7:40 pm

2 stops16h 55m

$792

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Mon 9/28

6:41 pm-5:35 pm

2 stops15h 54m

Barcelona-El Prat

Tue 10/6

10:15 am-7:40 pm

2 stops16h 25m

$803

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Tue 9/29

10:42 am-9:20 am

2 stops15h 38m

Barcelona-El Prat

Tue 10/6

6:40 am-9:35 pm

3 stops21h 55m

$859

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Tue 8/11

6:15 am-8:00 am

2 stops18h 45m

Barcelona-El Prat

Tue 8/18

1:15 pm-2:33 pm

2 stops32h 18m

$878

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 16 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 February is, on average, the cheapest month to fly to Barcelona from Milwaukee, with most prices found around $0. If you don’t want to visit Barcelona in February, then you should wait until March to fly from Milwaukee, when ticket prices are also cheap, with an average price of $457.

Cheap Milwaukee to Barcelona flight deals and tips

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

Fastest flight time

14h 27m

Direct flights

None
The fastest flight from Milwaukee to Barcelona takes 14h 27m
There are no direct flights from Milwaukee to Barcelona. There are no popular flight routes from Milwaukee to Barcelona.
Search flight deals

Frequently asked questions about flying from Milwaukee to Barcelona

  • 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 14h 27m.

  • 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
British AirwaysPriceFrom $457Free CancellationRating
6.7
7,987 reviews
Search British Airways flights
United AirlinesPriceFrom $499Free CancellationRating
7.4
9,737 reviews
Search United Airlines flights
American AirlinesPriceFrom $609Free CancellationRating
7.1
11,650 reviews
Search American Airlines flights
DeltaPriceFrom $689Free CancellationRating
7.9
8,447 reviews
Search Delta 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.

An easier way to manage your Barcelona trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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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