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Cheap flights from Milwaukee to Barcelona from $351

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 9/27. 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 pm - 1:15 pm
MKE
-
BCN
11h 15m
1 stop
United Airlines Logo
12:15 pm - 10:24 pm
BCN
-
MKE
17h 09m
2 stops
$806United Airlines
Mon, Sep 21 - Tue, Sep 29
United Airlines Logo
5:29 pm - 1:15 pm
MKE
-
BCN
12h 46m
1 stop
United Airlines Logo
8:00 am - 6:08 pm
BCN
-
MKE
17h 08m
2 stops
$807United Airlines
Mon, Sep 21 - Wed, Sep 30
United Airlines Logo
7:30 am - 8:20 am
MKE
-
BCN
17h 50m
2 stops
United Airlines Logo
8:00 am - 6:08 pm
BCN
-
MKE
17h 08m
2 stops
$811United Airlines
Mon, Sep 21 - Tue, Sep 29
United Airlines Logo
5:05 am - 1:15 pm
MKE
-
BCN
25h 10m
1 stop
United Airlines Logo
8:00 am - 6:39 pm
BCN
-
MKE
17h 39m
2 stops
$812United Airlines
Wed, Sep 23 - Thu, Oct 1
United Airlines Logo
2:40 pm - 2:05 pm
MKE
-
BCN
16h 25m
2 stops
United Airlines Logo
8:00 am - 6:08 pm
BCN
-
MKE
17h 08m
2 stops
$816United Airlines
Wed, Sep 23 - Tue, Sep 29
United Airlines Logo
7:00 pm - 6:15 pm
MKE
-
BCN
16h 15m
2 stops
United Airlines Logo
12:15 pm - 11:27 pm
BCN
-
MKE
18h 12m
2 stops
$826United Airlines
Wed, Sep 23 - Thu, Oct 1
Iberia Logo
3:03 pm - 10:35 am
MKE
-
BCN
12h 32m
1 stop
Iberia Logo
8:50 am - 5:33 pm
BCN
-
MKE
15h 43m
2 stops
$834Iberia
Thu, Sep 24 - Tue, Sep 29
United Airlines Logo
2:50 pm - 2:25 pm
MKE
-
BCN
16h 35m
2 stops
United Airlines Logo
12:15 pm - 10:24 pm
BCN
-
MKE
17h 09m
2 stops
$838United Airlines
Sun, Sep 27 - Tue, Sep 29
United Airlines Logo
2:50 pm - 2:25 pm
MKE
-
BCN
16h 35m
2 stops
United Airlines Logo
8:00 am - 7:51 pm
BCN
-
MKE
18h 51m
2 stops
$839United Airlines
Sun, Sep 27 - Wed, Sep 30
United Airlines Logo
8:30 am - 8:20 am
MKE
-
BCN
16h 50m
2 stops
United Airlines Logo
11:15 am - 12:09 am
BCN
-
MKE
19h 54m
2 stops
$843United Airlines
Mon, Sep 21 - Wed, Sep 30

United Airlines flights from Milwaukee to Barcelona

Our best United Airlines deals on Milwaukee to Barcelona flight tickets
United Airlines
Sep 21
MKE7:00 pmMilwaukee-Mitchell
11h 15m
1 stop
BCN1:15 pmBarcelona-El Prat
Oct 1
BCN12:15 pmBarcelona-El Prat
18h 12m
2 stops
MKE11:27 pmMilwaukee-Mitchell
$806
United Airlines
Sep 21
MKE5:29 pmMilwaukee-Mitchell
12h 46m
1 stop
BCN1:15 pmBarcelona-El Prat
Sep 30
BCN8:00 amBarcelona-El Prat
17h 08m
2 stops
MKE6:08 pmMilwaukee-Mitchell
$807
United Airlines
Sep 21
MKE7:30 amMilwaukee-Mitchell
17h 50m
2 stops
BCN8:20 amBarcelona-El Prat
Sep 29
BCN8:00 amBarcelona-El Prat
17h 08m
2 stops
MKE6:08 pmMilwaukee-Mitchell
$811

Iberia flights from Milwaukee to Barcelona

Our best Iberia deals on Milwaukee to Barcelona flight tickets
Iberia
Sep 24
MKE3:03 pmMilwaukee-Mitchell
12h 32m
1 stop
BCN10:35 amBarcelona-El Prat
Sep 29
BCN8:50 amBarcelona-El Prat
15h 43m
2 stops
MKE5:33 pmMilwaukee-Mitchell
$834
Iberia
Aug 16
MKE1:05 pmMilwaukee-Mitchell
14h 30m
1 stop
BCN10:35 amBarcelona-El Prat
Aug 22
BCN10:30 amBarcelona-El Prat
15h 29m
1 stop
MKE6:59 pmMilwaukee-Mitchell
$931
Iberia
Sep 27
MKE3:03 pmMilwaukee-Mitchell
12h 32m
1 stop
BCN10:35 amBarcelona-El Prat
Oct 1
BCN9:15 amBarcelona-El Prat
15h 18m
2 stops
MKE5:33 pmMilwaukee-Mitchell
$1,012

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 April 13, 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 9/21

7:00 pm-1:15 pm

1 stop11h 15m

Barcelona-El Prat

Tue 9/29

12:15 pm-10:24 pm

2 stops17h 09m

$806

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Mon 9/21

5:29 pm-1:15 pm

1 stop12h 46m

Barcelona-El Prat

Wed 9/30

8:00 am-6:08 pm

2 stops17h 08m

$807

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Mon 9/21

7:30 am-8:20 am

2 stops17h 50m

Barcelona-El Prat

Tue 9/29

8:00 am-6:08 pm

2 stops17h 08m

$811

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Wed 9/23

5:05 am-1:15 pm

1 stop25h 10m

Barcelona-El Prat

Thu 10/1

8:00 am-6:39 pm

2 stops17h 39m

$812

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Wed 9/23

2:40 pm-2:05 pm

2 stops16h 25m

Barcelona-El Prat

Tue 9/29

8:00 am-6:08 pm

2 stops17h 08m

$816

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Wed 9/23

7:00 pm-6:15 pm

2 stops16h 15m

Barcelona-El Prat

Thu 10/1

12:15 pm-11:27 pm

2 stops18h 12m

$826
Quickest round-trip

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Thu 9/24

3:03 pm-10:35 am

1 stop12h 32m

Barcelona-El Prat

Tue 9/29

8:50 am-5:33 pm

2 stops15h 43m

$834

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Sun 9/27

2:50 pm-2:25 pm

2 stops16h 35m

Barcelona-El Prat

Tue 9/29

12:15 pm-10:24 pm

2 stops17h 09m

$838

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Sun 9/27

2:50 pm-2:25 pm

2 stops16h 35m

Barcelona-El Prat

Wed 9/30

8:00 am-7:51 pm

2 stops18h 51m

$839

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Mon 9/21

8:30 am-8:20 am

2 stops16h 50m

Barcelona-El Prat

Wed 9/30

11:15 am-12:09 am

2 stops19h 54m

$843

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 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?

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 49m

Direct flights

None
The fastest flight from Milwaukee to Barcelona takes 13h 49m
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 13h 49m.

  • 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
7,876 reviews
Search British Airways flights
United AirlinesPriceFrom $499Free CancellationRating
7.4
9,579 reviews
Search United Airlines flights
American AirlinesPriceFrom $609Free CancellationRating
7.1
11,569 reviews
Search American Airlines flights
DeltaPriceFrom $689Free CancellationRating
7.9
8,409 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

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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