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Cheap flights from Milwaukee to Barcelona from $409

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 10/1. 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
2:50 pm - 1:15 pm
MKE
-
BCN
15h 25m
1 stop
United Airlines Logo
12:15 pm - 1:43 pm
BCN
-
MKE
32h 28m
2 stops
$784United Airlines
Mon, Sep 28 - Tue, Oct 6
United Airlines Logo
8:45 pm - 8:00 am
MKE
-
BCN
28h 15m
2 stops
United Airlines Logo
12:15 pm - 1:43 pm
BCN
-
MKE
32h 28m
2 stops
$787United Airlines
Mon, Sep 28 - Tue, Oct 6
American Airlines Logo
6:05 am - 7:35 am
MKE
-
BCN
18h 30m
1 stop
American Airlines Logo
12:50 pm - 11:47 pm
BCN
-
MKE
17h 57m
1 stop
$789American Airlines
Mon, Sep 28 - Tue, Oct 6
United Airlines Logo
10:45 am - 1:15 pm
MKE
-
BCN
19h 30m
1 stop
United Airlines Logo
3:15 pm - 12:09 am
BCN
-
MKE
15h 54m
1 stop
$803United Airlines
Mon, Sep 28 - Tue, Oct 6
United Airlines Logo
2:50 pm - 1:15 pm
MKE
-
BCN
15h 25m
1 stop
United Airlines Logo
3:15 pm - 10:24 pm
BCN
-
MKE
14h 09m
1 stop
$804United Airlines
Mon, Sep 28 - Tue, Oct 6
United Airlines Logo
7:00 pm - 1:15 pm
MKE
-
BCN
11h 15m
1 stop
United Airlines Logo
1:50 pm - 10:24 pm
BCN
-
MKE
15h 34m
2 stops
$807United Airlines
Mon, Sep 28 - Tue, Oct 6
United Airlines Logo
12:14 pm - 8:20 am
MKE
-
BCN
13h 06m
2 stops
United Airlines Logo
11:15 am - 10:24 pm
BCN
-
MKE
18h 09m
2 stops
$808United Airlines
Mon, Sep 28 - Tue, Oct 6
Iberia Logo
8:16 pm - 9:20 am
MKE
-
BCN
30h 04m
2 stops
Iberia Logo
7:40 am - 7:40 pm
BCN
-
MKE
19h 00m
2 stops
$836Iberia
Thu, Oct 8 - Fri, Oct 23
United Airlines Logo
2:50 pm - 1:15 pm
MKE
-
BCN
15h 25m
1 stop
United Airlines Logo
3:15 pm - 8:45 pm
BCN
-
MKE
12h 30m
1 stop
$838United Airlines
Wed, Sep 30 - Tue, Oct 6
Iberia Logo
3:03 pm - 10:35 am
MKE
-
BCN
12h 32m
1 stop
Iberia Logo
9:20 pm - 5:40 pm
BCN
-
MKE
51h 20m
2 stops
$845Iberia
Sun, Oct 4 - Sun, Oct 18

United Airlines flights from Milwaukee to Barcelona

Our best United Airlines deals on Milwaukee to Barcelona flight tickets
United Airlines
Sep 28
MKE2:50 pmMilwaukee-Mitchell
15h 25m
1 stop
BCN1:15 pmBarcelona-El Prat
Oct 6
BCN12:15 pmBarcelona-El Prat
32h 28m
2 stops
MKE1:43 pmMilwaukee-Mitchell
$784
United Airlines
Sep 28
MKE8:45 pmMilwaukee-Mitchell
28h 15m
2 stops
BCN8:00 amBarcelona-El Prat
Oct 6
BCN12:15 pmBarcelona-El Prat
32h 28m
2 stops
MKE1:43 pmMilwaukee-Mitchell
$787
United Airlines
Sep 28
MKE10:45 amMilwaukee-Mitchell
19h 30m
1 stop
BCN1:15 pmBarcelona-El Prat
Oct 6
BCN3:15 pmBarcelona-El Prat
15h 54m
1 stop
MKE12:09 amMilwaukee-Mitchell
$803

Air Canada flights from Milwaukee to Barcelona

Our best Air Canada deals on Milwaukee to Barcelona flight tickets
Air Canada
Sep 29
MKE8:29 amMilwaukee-Mitchell
16h 31m
3 stops
BCN8:00 amBarcelona-El Prat
Oct 6
BCN6:40 amBarcelona-El Prat
21h 05m
3 stops
MKE8:45 pmMilwaukee-Mitchell
$897
Air Canada
Sep 28
MKE8:29 amMilwaukee-Mitchell
16h 31m
3 stops
BCN8:00 amBarcelona-El Prat
Oct 6
BCN6:40 amBarcelona-El Prat
21h 05m
3 stops
MKE8:45 pmMilwaukee-Mitchell
$989
Air Canada
May 13
MKE8:33 amMilwaukee-Mitchell
16h 27m
2 stops
BCN8:00 amBarcelona-El Prat
May 20
BCN12:15 pmBarcelona-El Prat
31h 33m
2 stops
MKE12:48 pmMilwaukee-Mitchell
$1,135

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 May 10, 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 9/28

2:50 pm-1:15 pm

1 stop15h 25m

Barcelona-El Prat

Tue 10/6

12:15 pm-1:43 pm

2 stops32h 28m

$784

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Mon 9/28

8:45 pm-8:00 am

2 stops28h 15m

Barcelona-El Prat

Tue 10/6

12:15 pm-1:43 pm

2 stops32h 28m

$787

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Mon 9/28

6:05 am-7:35 am

1 stop18h 30m

Barcelona-El Prat

Tue 10/6

12:50 pm-11:47 pm

1 stop17h 57m

$789

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Mon 9/28

10:45 am-1:15 pm

1 stop19h 30m

Barcelona-El Prat

Tue 10/6

3:15 pm-12:09 am

1 stop15h 54m

$803

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Mon 9/28

2:50 pm-1:15 pm

1 stop15h 25m

Barcelona-El Prat

Tue 10/6

3:15 pm-10:24 pm

1 stop14h 09m

$804
Quickest round-trip

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Mon 9/28

7:00 pm-1:15 pm

1 stop11h 15m

Barcelona-El Prat

Tue 10/6

1:50 pm-10:24 pm

2 stops15h 34m

$807

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Mon 9/28

12:14 pm-8:20 am

2 stops13h 06m

Barcelona-El Prat

Tue 10/6

11:15 am-10:24 pm

2 stops18h 09m

$808

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Thu 10/8

8:16 pm-9:20 am

2 stops30h 04m

Barcelona-El Prat

Fri 10/23

7:40 am-7:40 pm

2 stops19h 00m

$836

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Wed 9/30

2:50 pm-1:15 pm

1 stop15h 25m

Barcelona-El Prat

Tue 10/6

3:15 pm-8:45 pm

1 stop12h 30m

$838

MilwaukeeBarcelona

MKE - BCN

MKEBCN

Milwaukee-Mitchell

Sun 10/4

3:03 pm-10:35 am

1 stop12h 32m

Barcelona-El Prat

Sun 10/18

9:20 pm-5:40 pm

2 stops51h 20m

$845

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?

What is the cheapest month to fly to Barcelona?

The month of February is, on average, the cheapest month to fly to Barcelona from Milwaukee, with most prices found around $0. If you don’t want to visit Barcelona in February, then you should wait until March to fly from Milwaukee, when ticket prices are also cheap, with an average price of $457.

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

11h 15m

Direct flights

None
The fastest flight from Milwaukee to Barcelona takes 11h 15m
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 11h 15m.

  • 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
7,964 reviews
Search British Airways flights
United AirlinesPriceFrom $499Free CancellationRating
7.4
9,694 reviews
Search United Airlines flights
American AirlinesPriceFrom $609Free CancellationRating
7.1
11,667 reviews
Search American Airlines flights
DeltaPriceFrom $689Free CancellationRating
7.9
8,455 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