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Cheap flights from Milwaukee to Barcelona from $340

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 4/28. 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.
Delta Logo
10:13 am - 8:40 amMKE-BCN
15h 27m1 stop
Delta Logo
10:55 am - 8:33 pmBCN-MKE
16h 38m1 stop
$423Delta
Find Deal
Tue, Feb 3 - Fri, Feb 13
KLM Logo
7:05 am - 8:00 amMKE-BCN
17h 55m1 stop
KLM Logo
10:55 am - 11:46 pmBCN-MKE
19h 51m1 stop
$425KLM
Find Deal
Wed, Jan 21 - Wed, Jan 28
KLM Logo
7:05 am - 8:00 amMKE-BCN
17h 55m1 stop
KLM Logo
10:15 am - 8:58 pmBCN-MKE
17h 43m1 stop
$426KLM
Find Deal
Mon, Jan 12 - Tue, Jan 27
KLM Logo
7:05 am - 8:00 amMKE-BCN
17h 55m1 stop
KLM Logo
10:55 am - 7:58 pmBCN-MKE
16h 03m1 stop
$428KLM
Find Deal
Wed, Jan 21 - Wed, Jan 28
Delta Logo
3:42 pm - 8:40 amMKE-BCN
33h 58m1 stop
Delta Logo
10:55 am - 7:58 pmBCN-MKE
16h 03m1 stop
$434Delta
Find Deal
Mon, Jan 19 - Fri, Jan 30
Delta Logo
6:40 am - 8:00 amMKE-BCN
18h 20m2 stops
Delta Logo
10:15 am - 11:46 pmBCN-MKE
20h 31m2 stops
$438Delta
Find Deal
Wed, Jan 21 - Tue, Jan 27
Delta Logo
5:45 pm - 8:00 amMKE-BCN
31h 15m1 stop
Delta Logo
10:15 am - 9:45 pmBCN-MKE
18h 30m1 stop
$439Delta
Find Deal
Tue, Jan 20 - Tue, Jan 27
American Airlines Logo
1:04 pm - 11:55 amMKE-BCN
15h 51m2 stops
American Airlines Logo
9:15 am - 6:26 pmBCN-MKE
16h 11m2 stops
$442American Airlines
Find Deal
Mon, Jan 12 - Tue, Jan 27
Delta Logo
5:30 am - 8:40 amMKE-BCN
20h 10m1 stop
Delta Logo
10:55 am - 2:50 pmBCN-MKE
34h 55m1 stop
$448Delta
Find Deal
Tue, Feb 3 - Sun, Feb 15
Virgin Atlantic Logo
10:13 am - 8:40 amMKE-BCN
15h 27m1 stop
Virgin Atlantic Logo
10:55 am - 7:58 pmBCN-MKE
16h 03m1 stop
$449Virgin Atlantic
Find Deal
Thu, Jan 22 - Wed, Jan 28

Delta flights from Milwaukee to Barcelona

Our best Delta deals on Milwaukee to Barcelona flight tickets
Delta
Feb 3
MKE10:13 amMilwaukee-Mitchell
15h 27m
1 stop
BCN8:40 amBarcelona-El Prat
Feb 13
BCN10:55 amBarcelona-El Prat
16h 38m
1 stop
MKE8:33 pmMilwaukee-Mitchell
$423
Find similar
Delta
Jan 19
MKE3:42 pmMilwaukee-Mitchell
33h 58m
1 stop
BCN8:40 amBarcelona-El Prat
Jan 30
BCN10:55 amBarcelona-El Prat
16h 03m
1 stop
MKE7:58 pmMilwaukee-Mitchell
$434
Find similar
Delta
Jan 21
MKE6:40 amMilwaukee-Mitchell
18h 20m
2 stops
BCN8:00 amBarcelona-El Prat
Jan 27
BCN10:15 amBarcelona-El Prat
20h 31m
2 stops
MKE11:46 pmMilwaukee-Mitchell
$438
Find similar

KLM flights from Milwaukee to Barcelona

Our best KLM deals on Milwaukee to Barcelona flight tickets
KLM
Jan 21
MKE7:05 amMilwaukee-Mitchell
17h 55m
1 stop
BCN8:00 amBarcelona-El Prat
Jan 28
BCN10:55 amBarcelona-El Prat
19h 51m
1 stop
MKE11:46 pmMilwaukee-Mitchell
$425
Find similar
KLM
Jan 12
MKE7:05 amMilwaukee-Mitchell
17h 55m
1 stop
BCN8:00 amBarcelona-El Prat
Jan 27
BCN10:15 amBarcelona-El Prat
17h 43m
1 stop
MKE8:58 pmMilwaukee-Mitchell
$426
Find similar
KLM
Jan 21
MKE7:05 amMilwaukee-Mitchell
17h 55m
1 stop
BCN8:00 amBarcelona-El Prat
Jan 28
BCN10:55 amBarcelona-El Prat
16h 03m
1 stop
MKE7:58 pmMilwaukee-Mitchell
$428
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 2, 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

Tue 2/3

10:13 am-8:40 am

1 stop15h 27m

Barcelona-El Prat

Fri 2/13

10:55 am-8:33 pm

1 stop16h 38m

$423

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Wed 1/21

7:05 am-8:00 am

1 stop17h 55m

Barcelona-El Prat

Wed 1/28

10:55 am-11:46 pm

1 stop19h 51m

$425

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Mon 1/12

7:05 am-8:00 am

1 stop17h 55m

Barcelona-El Prat

Tue 1/27

10:15 am-8:58 pm

1 stop17h 43m

$426

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Wed 1/21

7:05 am-8:00 am

1 stop17h 55m

Barcelona-El Prat

Wed 1/28

10:55 am-7:58 pm

1 stop16h 03m

$428

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Mon 1/19

3:42 pm-8:40 am

1 stop33h 58m

Barcelona-El Prat

Fri 1/30

10:55 am-7:58 pm

1 stop16h 03m

$434

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Wed 1/21

6:40 am-8:00 am

2 stops18h 20m

Barcelona-El Prat

Tue 1/27

10:15 am-11:46 pm

2 stops20h 31m

$438

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Tue 1/20

5:45 pm-8:00 am

1 stop31h 15m

Barcelona-El Prat

Tue 1/27

10:15 am-9:45 pm

1 stop18h 30m

$439

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Mon 1/12

1:04 pm-11:55 am

2 stops15h 51m

Barcelona-El Prat

Tue 1/27

9:15 am-6:26 pm

2 stops16h 11m

$442

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Tue 2/3

5:30 am-8:40 am

1 stop20h 10m

Barcelona-El Prat

Sun 2/15

10:55 am-2:50 pm

1 stop34h 55m

$448

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Thu 1/22

10:13 am-8:40 am

1 stop15h 27m

Barcelona-El Prat

Wed 1/28

10:55 am-7:58 pm

1 stop16h 03m

$449

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

12h 45m

Direct flights

None
The fastest flight from Milwaukee to Barcelona takes 12h 45m
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 23m.

  • 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
9,062 reviews
Search United Airlines flights
American AirlinesPriceFrom $609Free CancellationRating
7.2
11,040 reviews
Search American Airlines flights
DeltaPriceFrom $676Free CancellationRating
7.9
8,011 reviews
Search Delta flights
British AirwaysPriceFrom $689Free CancellationRating
6.7
7,549 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