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Cheap flights from Milwaukee to Barcelona from $336

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 3/29. 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
7:00 am - 9:00 am
MKE
-
BCN
19h 00m2 stops
United Airlines Logo
1:35 pm - 3:35 pm
BCN
-
MKE
33h 00m2 stops
$469United Airlines
Fri, Feb 6 - Mon, Feb 16
Lufthansa Logo
11:39 am - 11:05 am
MKE
-
BCN
16h 26m2 stops
Lufthansa Logo
5:50 am - 5:43 pm
BCN
-
MKE
18h 53m2 stops
$476Lufthansa
Mon, Feb 16 - Sun, Mar 8
Lufthansa Logo
11:30 am - 11:05 pm
MKE
-
BCN
28h 35m2 stops
Lufthansa Logo
5:50 am - 8:55 pm
BCN
-
MKE
22h 05m2 stops
$481Lufthansa
Fri, Feb 6 - Mon, Feb 16
Multiple Airlines Logo
6:40 am - 8:50 am
MKE
-
BCN
19h 10m1 stop
Multiple Airlines Logo
10:40 am - 10:04 pm
BCN
-
MKE
18h 24m1 stop
$484Multiple Airlines
Fri, Feb 6 - Mon, Feb 16
Lufthansa Logo
10:59 am - 12:15 pm
MKE
-
BCN
18h 16m2 stops
Lufthansa Logo
5:50 am - 9:59 pm
BCN
-
MKE
23h 09m2 stops
$487Lufthansa
Sat, Jan 31 - Sun, Feb 8
Delta Logo
7:05 am - 8:50 am
MKE
-
BCN
18h 45m2 stops
Delta Logo
10:55 am - 7:58 pm
BCN
-
MKE
16h 03m1 stop
$488Delta
Sat, Jan 31 - Sun, Feb 8
Multiple Airlines Logo
11:52 am - 8:50 am
MKE
-
BCN
13h 58m1 stop
Multiple Airlines Logo
5:35 pm - 5:47 pm
BCN
-
MKE
30h 12m2 stops
$489Multiple Airlines
Mon, Feb 16 - Sun, Mar 8
American Airlines Logo
1:04 pm - 11:35 am
MKE
-
BCN
15h 31m2 stops
American Airlines Logo
11:00 am - 11:54 pm
BCN
-
MKE
19h 54m1 stop
$584American Airlines
Fri, Feb 6 - Mon, Feb 16
Multiple Airlines Logo
8:33 am - 9:35 am
MKE
-
BCN
18h 02m3 stops
Multiple Airlines Logo
1:35 pm - 10:30 am
BCN
-
MKE
27h 55m2 stops
$597Multiple Airlines
Fri, Feb 6 - Mon, Feb 16
British Airways Logo
6:53 pm - 3:40 pm
MKE
-
BCN
13h 47m2 stops
British Airways Logo
10:45 am - 5:29 pm
BCN
-
MKE
13h 44m1 stop
$647British Airways
Tue, Apr 28 - Wed, May 6

KLM flights from Milwaukee to Barcelona

Our best KLM deals on Milwaukee to Barcelona flight tickets
KLM
Jan 1
MKE10:28 amMilwaukee-Mitchell
13h 47m
1 stop
BCN7:15 amBarcelona-El Prat
Jan 10
BCN10:15 amBarcelona-El Prat
17h 43m
1 stop
MKE8:58 pmMilwaukee-Mitchell
$1,181
Find similar
KLM
Mar 26
MKE7:00 amMilwaukee-Mitchell
18h 00m
1 stop
BCN7:00 amBarcelona-El Prat
Apr 5
BCN11:35 amBarcelona-El Prat
16h 20m
1 stop
MKE8:55 pmMilwaukee-Mitchell
$1,314
Find similar

Air Canada flights from Milwaukee to Barcelona

Our best Air Canada deals on Milwaukee to Barcelona flight tickets
Air Canada
Apr 28
MKE8:30 amMilwaukee-Mitchell
17h 50m
3 stops
BCN9:20 amBarcelona-El Prat
May 6
BCN8:00 amBarcelona-El Prat
21h 45m
3 stops
MKE10:45 pmMilwaukee-Mitchell
$735
Find similar
Air Canada
Feb 6
MKE8:33 amMilwaukee-Mitchell
18h 02m
3 stops
BCN9:35 amBarcelona-El Prat
Feb 16
BCN9:55 amBarcelona-El Prat
19h 33m
3 stops
MKE10:28 pmMilwaukee-Mitchell
$779
Find similar
Air Canada
Feb 6
MKE8:33 amMilwaukee-Mitchell
18h 02m
3 stops
BCN9:35 amBarcelona-El Prat
Feb 16
BCN9:55 amBarcelona-El Prat
19h 33m
3 stops
MKE10:28 pmMilwaukee-Mitchell
$856
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 December 26, 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

7:00 am-9:00 am

2 stops19h 00m

Barcelona-El Prat

Mon 2/16

1:35 pm-3:35 pm

2 stops33h 00m

$469

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Mon 2/16

11:39 am-11:05 am

2 stops16h 26m

Barcelona-El Prat

Sun 3/8

5:50 am-5:43 pm

2 stops18h 53m

$476

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Fri 2/6

11:30 am-11:05 pm

2 stops28h 35m

Barcelona-El Prat

Mon 2/16

5:50 am-8:55 pm

2 stops22h 05m

$481

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Fri 2/6

6:40 am-8:50 am

1 stop19h 10m

Barcelona-El Prat

Mon 2/16

10:40 am-10:04 pm

1 stop18h 24m

$484

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Sat 1/31

10:59 am-12:15 pm

2 stops18h 16m

Barcelona-El Prat

Sun 2/8

5:50 am-9:59 pm

2 stops23h 09m

$487

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Sat 1/31

7:05 am-8:50 am

2 stops18h 45m

Barcelona-El Prat

Sun 2/8

10:55 am-7:58 pm

1 stop16h 03m

$488

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Mon 2/16

11:52 am-8:50 am

1 stop13h 58m

Barcelona-El Prat

Sun 3/8

5:35 pm-5:47 pm

2 stops30h 12m

$489

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Fri 2/6

1:04 pm-11:35 am

2 stops15h 31m

Barcelona-El Prat

Mon 2/16

11:00 am-11:54 pm

1 stop19h 54m

$584

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Fri 2/6

8:33 am-9:35 am

3 stops18h 02m

Barcelona-El Prat

Mon 2/16

1:35 pm-10:30 am

2 stops27h 55m

$597

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Tue 4/28

6:53 pm-3:40 pm

2 stops13h 47m

Barcelona-El Prat

Wed 5/6

10:45 am-5:29 pm

1 stop13h 44m

$647

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 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

Fastest flight time

13h 42m

Direct flights

None
The fastest flight from Milwaukee to Barcelona takes 13h 42m
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 13h 42m.

  • 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
9,116 reviews
Search United Airlines flights
American AirlinesPriceFrom $609Free CancellationRating
7.2
11,066 reviews
Search American Airlines flights
DeltaPriceFrom $676Free CancellationRating
7.9
8,016 reviews
Search Delta flights
British AirwaysPriceFrom $689Free CancellationRating
6.7
7,618 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.

An easier way to manage your Barcelona trip

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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