Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Milwaukee to Barcelona from $356

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 5/4. 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

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Milwaukee to Barcelona

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
1:25 pm - 5:35 pm
MKE
-
BCN
22h 10m
2 stops
United Airlines Logo
12:15 pm - 10:15 pm
BCN
-
MKE
41h 00m
2 stops
$524United Airlines
Tue, Mar 24 - Tue, Mar 31
KLM Logo
6:45 pm - 4:30 pm
MKE
-
BCN
15h 45m
2 stops
KLM Logo
11:00 am - 11:58 pm
BCN
-
MKE
19h 58m
1 stop
$566KLM
Tue, Mar 24 - Tue, Mar 31
Lufthansa Logo
7:22 pm - 10:25 pm
MKE
-
BCN
20h 03m
2 stops
Lufthansa Logo
10:25 am - 10:15 pm
BCN
-
MKE
18h 50m
2 stops
$571Lufthansa
Thu, Apr 16 - Sun, Apr 19
British Airways Logo
6:30 pm - 4:00 pm
MKE
-
BCN
14h 30m
2 stops
British Airways Logo
10:30 am - 5:11 pm
BCN
-
MKE
13h 41m
1 stop
$575British Airways
Thu, Apr 16 - Sun, Apr 19
British Airways Logo
1:53 pm - 10:35 am
MKE
-
BCN
13h 42m
1 stop
British Airways Logo
10:30 am - 5:11 pm
BCN
-
MKE
13h 41m
1 stop
$584British Airways
Thu, Apr 16 - Sun, Apr 19
United Airlines Logo
7:22 pm - 1:15 pm
MKE
-
BCN
10h 53m
1 stop
United Airlines Logo
3:15 pm - 9:49 pm
BCN
-
MKE
13h 34m
1 stop
$587United Airlines
Thu, Apr 16 - Sun, Apr 19
United Airlines Logo
10:45 am - 1:15 pm
MKE
-
BCN
19h 30m
1 stop
United Airlines Logo
12:15 pm - 11:43 pm
BCN
-
MKE
18h 28m
2 stops
$590United Airlines
Thu, Apr 16 - Sun, Apr 19
United Airlines Logo
10:45 am - 8:00 am
MKE
-
BCN
14h 15m
2 stops
United Airlines Logo
12:15 pm - 11:43 pm
BCN
-
MKE
18h 28m
2 stops
$593United Airlines
Thu, Apr 16 - Sun, Apr 19
Air Canada Logo
5:51 pm - 8:00 am
MKE
-
BCN
31h 09m
2 stops
Air Canada Logo
12:15 pm - 10:30 pm
BCN
-
MKE
41h 15m
2 stops
$602Air Canada
Sat, May 9 - Wed, Jun 3
KLM Logo
7:00 am - 7:00 am
MKE
-
BCN
18h 00m
1 stop
KLM Logo
11:00 am - 11:58 pm
BCN
-
MKE
19h 58m
1 stop
$624KLM
Tue, Mar 24 - Tue, Mar 31

United Airlines flights from Milwaukee to Barcelona

Our best United Airlines deals on Milwaukee to Barcelona flight tickets
United Airlines
Mar 24
MKE1:25 pmMilwaukee-Mitchell
22h 10m
2 stops
BCN5:35 pmBarcelona-El Prat
Mar 31
BCN12:15 pmBarcelona-El Prat
41h 00m
2 stops
MKE10:15 pmMilwaukee-Mitchell
$524
United Airlines
Apr 16
MKE7:22 pmMilwaukee-Mitchell
10h 53m
1 stop
BCN1:15 pmBarcelona-El Prat
Apr 19
BCN3:15 pmBarcelona-El Prat
13h 34m
1 stop
MKE9:49 pmMilwaukee-Mitchell
$587
United Airlines
Apr 16
MKE10:45 amMilwaukee-Mitchell
19h 30m
1 stop
BCN1:15 pmBarcelona-El Prat
Apr 19
BCN12:15 pmBarcelona-El Prat
18h 28m
2 stops
MKE11:43 pmMilwaukee-Mitchell
$590

KLM flights from Milwaukee to Barcelona

Our best KLM deals on Milwaukee to Barcelona flight tickets
KLM
Mar 24
MKE6:45 pmMilwaukee-Mitchell
15h 45m
2 stops
BCN4:30 pmBarcelona-El Prat
Mar 31
BCN11:00 amBarcelona-El Prat
19h 58m
1 stop
MKE11:58 pmMilwaukee-Mitchell
$566
KLM
Mar 24
MKE7:00 amMilwaukee-Mitchell
18h 00m
1 stop
BCN7:00 amBarcelona-El Prat
Mar 31
BCN11:00 amBarcelona-El Prat
19h 58m
1 stop
MKE11:58 pmMilwaukee-Mitchell
$624
KLM
Feb 23
MKE12:20 pmMilwaukee-Mitchell
13h 20m
1 stop
BCN8:40 amBarcelona-El Prat
Mar 18
BCN9:30 amBarcelona-El Prat
16h 36m
1 stop
MKE8:06 pmMilwaukee-Mitchell
$680

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 8, 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 3/24

1:25 pm-5:35 pm

2 stops22h 10m

Barcelona-El Prat

Tue 3/31

12:15 pm-10:15 pm

2 stops41h 00m

$524

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Tue 3/24

6:45 pm-4:30 pm

2 stops15h 45m

Barcelona-El Prat

Tue 3/31

11:00 am-11:58 pm

1 stop19h 58m

$566

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Thu 4/16

7:22 pm-10:25 pm

2 stops20h 03m

Barcelona-El Prat

Sun 4/19

10:25 am-10:15 pm

2 stops18h 50m

$571

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Thu 4/16

6:30 pm-4:00 pm

2 stops14h 30m

Barcelona-El Prat

Sun 4/19

10:30 am-5:11 pm

1 stop13h 41m

$575

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Thu 4/16

1:53 pm-10:35 am

1 stop13h 42m

Barcelona-El Prat

Sun 4/19

10:30 am-5:11 pm

1 stop13h 41m

$584

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Thu 4/16

7:22 pm-1:15 pm

1 stop10h 53m

Barcelona-El Prat

Sun 4/19

3:15 pm-9:49 pm

1 stop13h 34m

$587

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Thu 4/16

10:45 am-1:15 pm

1 stop19h 30m

Barcelona-El Prat

Sun 4/19

12:15 pm-11:43 pm

2 stops18h 28m

$590

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Thu 4/16

10:45 am-8:00 am

2 stops14h 15m

Barcelona-El Prat

Sun 4/19

12:15 pm-11:43 pm

2 stops18h 28m

$593

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Sat 5/9

5:51 pm-8:00 am

2 stops31h 09m

Barcelona-El Prat

Wed 6/3

12:15 pm-10:30 pm

2 stops41h 15m

$602

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Tue 3/24

7:00 am-7:00 am

1 stop18h 00m

Barcelona-El Prat

Tue 3/31

11:00 am-11:58 pm

1 stop19h 58m

$624

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
1
2

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, United Airlines, and British Airways 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

16h 14m

Direct flights

None
The fastest flight from Milwaukee to Barcelona takes 16h 14m
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 16h 14m.

  • 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
7,723 reviews
Search British Airways flights
United AirlinesPriceFrom $499Free CancellationRating
7.4
9,259 reviews
Search United Airlines flights
American AirlinesPriceFrom $609Free CancellationRating
7.2
11,258 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.

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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 3/10
Tue 3/17
By creating a price alert you accept our terms of use and privacy policy.

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