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Cheap flights from Milwaukee to Barcelona from $252

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 8/4. 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.
United Airlines Logo
6:00 am - 8:20 am
MKE
-
BCN
20h 20m
2 stops
United Airlines Logo
12:35 pm - 12:35 pm
BCN
-
MKE
30h 00m
2 stops
$471United Airlines
Tue, Mar 10 - Tue, Mar 17
Delta Logo
1:15 pm - 12:15 pm
MKE
-
BCN
17h 00m
2 stops
Delta Logo
9:45 am - 11:58 pm
BCN
-
MKE
20h 13m
1 stop
$497Delta
Tue, Mar 10 - Tue, Mar 17
United Airlines Logo
6:00 am - 8:35 am
MKE
-
BCN
20h 35m
2 stops
United Airlines Logo
12:15 pm - 10:10 am
BCN
-
MKE
28h 55m
2 stops
$519United Airlines
Tue, Mar 24 - Tue, Mar 31
United Airlines Logo
7:18 pm - 8:35 am
MKE
-
BCN
31h 17m
2 stops
United Airlines Logo
1:15 pm - 6:47 pm
BCN
-
MKE
36h 32m
2 stops
$524United Airlines
Mon, Mar 23 - Wed, Apr 1
British Airways Logo
12:14 pm - 10:30 pm
MKE
-
BCN
28h 16m
2 stops
British Airways Logo
12:00 pm - 11:07 pm
BCN
-
MKE
18h 07m
2 stops
$533British Airways
Mon, Mar 16 - Thu, Apr 2
United Airlines Logo
1:25 pm - 4:20 pm
MKE
-
BCN
20h 55m
2 stops
United Airlines Logo
12:15 pm - 9:18 pm
BCN
-
MKE
40h 03m
2 stops
$536United Airlines
Tue, Mar 24 - Tue, Mar 31
American Airlines Logo
10:27 am - 8:00 am
MKE
-
BCN
15h 33m
1 stop
American Airlines Logo
10:20 am - 11:59 pm
BCN
-
MKE
19h 39m
1 stop
$538American Airlines
Tue, Mar 10 - Tue, Mar 17
Multiple Airlines Logo
6:33 pm - 3:00 pm
MKE
-
BCN
14h 27m
2 stops
Multiple Airlines Logo
11:00 am - 11:58 pm
BCN
-
MKE
19h 58m
1 stop
$560Multiple Airlines
Tue, Mar 24 - Tue, Mar 31
Delta Logo
5:45 am - 7:35 am
MKE
-
BCN
19h 50m
1 stop
Delta Logo
11:00 am - 9:04 am
BCN
-
MKE
29h 04m
1 stop
$561Delta
Mon, Mar 16 - Thu, Apr 2
Delta Logo
3:55 pm - 3:00 pm
MKE
-
BCN
17h 05m
2 stops
Delta Logo
11:00 am - 9:04 am
BCN
-
MKE
29h 04m
1 stop
$565Delta
Mon, Mar 16 - Thu, Apr 2

United Airlines flights from Milwaukee to Barcelona

Our best United Airlines deals on Milwaukee to Barcelona flight tickets
United Airlines
Mar 10
MKE6:00 amMilwaukee-Mitchell
20h 20m
2 stops
BCN8:20 amBarcelona-El Prat
Mar 17
BCN12:35 pmBarcelona-El Prat
30h 00m
2 stops
MKE12:35 pmMilwaukee-Mitchell
$471
United Airlines
Mar 24
MKE6:00 amMilwaukee-Mitchell
20h 35m
2 stops
BCN8:35 amBarcelona-El Prat
Mar 31
BCN12:15 pmBarcelona-El Prat
28h 55m
2 stops
MKE10:10 amMilwaukee-Mitchell
$519
United Airlines
Mar 23
MKE7:18 pmMilwaukee-Mitchell
31h 17m
2 stops
BCN8:35 amBarcelona-El Prat
Apr 1
BCN1:15 pmBarcelona-El Prat
36h 32m
2 stops
MKE6:47 pmMilwaukee-Mitchell
$524

British Airways flights from Milwaukee to Barcelona

Our best British Airways deals on Milwaukee to Barcelona flight tickets
British Airways
Mar 16
MKE12:14 pmMilwaukee-Mitchell
28h 16m
2 stops
BCN10:30 pmBarcelona-El Prat
Apr 2
BCN12:00 pmBarcelona-El Prat
18h 07m
2 stops
MKE11:07 pmMilwaukee-Mitchell
$533
British Airways
Apr 24
MKE6:30 pmMilwaukee-Mitchell
14h 30m
2 stops
BCN4:00 pmBarcelona-El Prat
May 3
BCN9:20 pmBarcelona-El Prat
26h 51m
2 stops
MKE5:11 pmMilwaukee-Mitchell
$585
British Airways
Mar 23
MKE4:47 pmMilwaukee-Mitchell
20h 58m
2 stops
BCN7:45 pmBarcelona-El Prat
Apr 1
BCN10:30 amBarcelona-El Prat
16h 55m
1 stop
MKE8:25 pmMilwaukee-Mitchell
$609

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 February 12, 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

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Tue 3/10

6:00 am-8:20 am

2 stops20h 20m

Barcelona-El Prat

Tue 3/17

12:35 pm-12:35 pm

2 stops30h 00m

$471

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Tue 3/10

1:15 pm-12:15 pm

2 stops17h 00m

Barcelona-El Prat

Tue 3/17

9:45 am-11:58 pm

1 stop20h 13m

$497

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Tue 3/24

6:00 am-8:35 am

2 stops20h 35m

Barcelona-El Prat

Tue 3/31

12:15 pm-10:10 am

2 stops28h 55m

$519

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Mon 3/23

7:18 pm-8:35 am

2 stops31h 17m

Barcelona-El Prat

Wed 4/1

1:15 pm-6:47 pm

2 stops36h 32m

$524

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Mon 3/16

12:14 pm-10:30 pm

2 stops28h 16m

Barcelona-El Prat

Thu 4/2

12:00 pm-11:07 pm

2 stops18h 07m

$533

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Tue 3/24

1:25 pm-4:20 pm

2 stops20h 55m

Barcelona-El Prat

Tue 3/31

12:15 pm-9:18 pm

2 stops40h 03m

$536

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Tue 3/10

10:27 am-8:00 am

1 stop15h 33m

Barcelona-El Prat

Tue 3/17

10:20 am-11:59 pm

1 stop19h 39m

$538

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Tue 3/24

6:33 pm-3:00 pm

2 stops14h 27m

Barcelona-El Prat

Tue 3/31

11:00 am-11:58 pm

1 stop19h 58m

$560

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Mon 3/16

5:45 am-7:35 am

1 stop19h 50m

Barcelona-El Prat

Thu 4/2

11:00 am-9:04 am

1 stop29h 04m

$561

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Mon 3/16

3:55 pm-3:00 pm

2 stops17h 05m

Barcelona-El Prat

Thu 4/2

11:00 am-9:04 am

1 stop29h 04m

$565

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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

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 airline that flies from Milwaukee-Mitchell to Barcelona?

Aer Lingus, British Airways, and American Airlines are the most popular carriers operating from Milwaukee-Mitchell to Barcelona

What airlines fly to Barcelona?

United Airlines, Iberia and American Airlines are the top three most popular airlines that fly to Barcelona from Milwaukee according to our data. United Airlines is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Barcelona. Keep in mind that there are 17 different airlines that fly to Barcelona on a routine basis, so you have a few additional options to choose from.

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 30m

Direct flights

None
The fastest flight from Milwaukee to Barcelona takes 14h 30m
There are no direct flights from Milwaukee to Barcelona. There are no popular flight routes from Milwaukee to Barcelona.
Search flight deals

  • 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 30m.

  • 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
7,731 reviews
Search British Airways flights
United AirlinesPriceFrom $499Free CancellationRating
7.4
9,279 reviews
Search United Airlines flights
American AirlinesPriceFrom $609Free CancellationRating
7.2
11,271 reviews
Search American Airlines 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