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Cheap flights from Milwaukee to Barcelona from $539

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 9/1. 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
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Milwaukee to Barcelona

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
11:10 am - 9:35 amMKE  Milwaukee-Mitchell-BCN Barcelona-El Prat
39h 25m2 stops Newark Montreal Pierre Elliott Trudeau Intl
United Airlines Logo
1:35 pm - 9:49 amBCN  Barcelona-El Prat-MKE Milwaukee-Mitchell
27h 14m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
$756United Airlines
Mon, Jan 11 - Fri, Jan 15
United Airlines Logo
7:00 pm - 8:20 amMKE  Milwaukee-Mitchell-BCN Barcelona-El Prat
30h 20m2 stops Chicago O'Hare Intl Newark
United Airlines Logo
1:35 pm - 1:43 pmBCN  Barcelona-El Prat-MKE Milwaukee-Mitchell
31h 08m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
$757United Airlines
Mon, Jan 11 - Fri, Jan 15
United Airlines Logo
6:45 pm - 8:20 amMKE  Milwaukee-Mitchell-BCN Barcelona-El Prat
30h 35m1 stop Newark
United Airlines Logo
1:35 pm - 3:04 pmBCN  Barcelona-El Prat-MKE Milwaukee-Mitchell
32h 29m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
$759United Airlines
Mon, Jan 11 - Fri, Jan 15
Air Canada Logo
2:23 pm - 9:35 amMKE  Milwaukee-Mitchell-BCN Barcelona-El Prat
36h 12m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
1:35 pm - 10:39 pmBCN  Barcelona-El Prat-MKE Milwaukee-Mitchell
40h 04m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
$762Air Canada
Sat, Nov 14 - Fri, Dec 4
JetBlue Logo
10:55 am - 9:45 amMKE  Milwaukee-Mitchell-BCN Barcelona-El Prat
15h 50m1 stop Boston Logan Intl
JetBlue Logo
12:50 pm - 10:02 amBCN  Barcelona-El Prat-MKE Milwaukee-Mitchell
28h 12m1 stop Boston Logan Intl
$776JetBlue
Mon, Sep 28 - Tue, Oct 6
Air Canada Logo
5:00 am - 9:35 amMKE  Milwaukee-Mitchell-BCN Barcelona-El Prat
21h 35m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
1:35 pm - 10:39 pmBCN  Barcelona-El Prat-MKE Milwaukee-Mitchell
40h 04m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl
$786Air Canada
Sun, Nov 8 - Fri, Dec 4
American Airlines Logo
8:14 pm - 5:35 pmMKE  Milwaukee-Mitchell-BCN Barcelona-El Prat
14h 21m2 stops Chicago O'Hare Intl London Heathrow
American Airlines Logo
10:45 am - 9:52 pmBCN  Barcelona-El Prat-MKE Milwaukee-Mitchell
18h 07m1 stop Dallas/Fort Worth
$802American Airlines
Mon, Sep 28 - Tue, Oct 6
British Airways Logo
2:55 pm - 12:40 pmMKE  Milwaukee-Mitchell-BCN Barcelona-El Prat
14h 45m2 stops Chicago O'Hare Intl London Heathrow
British Airways Logo
12:40 pm - 10:37 pmBCN  Barcelona-El Prat-MKE Milwaukee-Mitchell
16h 57m2 stops London Heathrow Chicago O'Hare Intl
$802British Airways
Sun, Nov 15 - Fri, Dec 4
American Airlines Logo
12:22 pm - 10:10 amMKE  Milwaukee-Mitchell-BCN Barcelona-El Prat
14h 48m1 stop Dallas/Fort Worth
American Airlines Logo
12:50 pm - 11:34 pmBCN  Barcelona-El Prat-MKE Milwaukee-Mitchell
17h 44m1 stop Philadelphia
$805American Airlines
Wed, Sep 30 - Wed, Oct 7
British Airways Logo
2:55 pm - 11:35 amMKE  Milwaukee-Mitchell-BCN Barcelona-El Prat
13h 40m2 stops Chicago O'Hare Intl London Heathrow
British Airways Logo
12:40 pm - 10:37 pmBCN  Barcelona-El Prat-MKE Milwaukee-Mitchell
16h 57m2 stops London Heathrow Chicago O'Hare Intl
$865British Airways
Fri, Nov 13 - Fri, Dec 4

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United Airlines flights from Milwaukee to Barcelona

Our best United Airlines deals on Milwaukee to Barcelona flight tickets
United Airlines
Jan 11
MKE11:10 amMilwaukee-Mitchell
39h 25m
2 stops
BCN9:35 amBarcelona-El Prat
Jan 15
BCN1:35 pmBarcelona-El Prat
27h 14m
2 stops
MKE9:49 amMilwaukee-Mitchell
$756
United Airlines
Jan 11
MKE7:00 pmMilwaukee-Mitchell
30h 20m
2 stops
BCN8:20 amBarcelona-El Prat
Jan 15
BCN1:35 pmBarcelona-El Prat
31h 08m
2 stops
MKE1:43 pmMilwaukee-Mitchell
$757
United Airlines
Jan 11
MKE6:45 pmMilwaukee-Mitchell
30h 35m
1 stop
BCN8:20 amBarcelona-El Prat
Jan 15
BCN1:35 pmBarcelona-El Prat
32h 29m
2 stops
MKE3:04 pmMilwaukee-Mitchell
$759

Iberia flights from Milwaukee to Barcelona

Our best Iberia deals on Milwaukee to Barcelona flight tickets
Iberia
Sep 28
MKE2:48 pmMilwaukee-Mitchell
13h 07m
1 stop
BCN10:55 amBarcelona-El Prat
Oct 5
BCN9:20 pmBarcelona-El Prat
28h 16m
2 stops
MKE6:36 pmMilwaukee-Mitchell
$819
Iberia
Sep 28
MKE2:48 pmMilwaukee-Mitchell
13h 57m
2 stops
BCN11:45 amBarcelona-El Prat
Oct 5
BCN9:20 pmBarcelona-El Prat
28h 16m
2 stops
MKE6:36 pmMilwaukee-Mitchell
$828

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 August 17, 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 Milwaukee-Mitchell - BCN Barcelona-El Prat

MKEBCN

Milwaukee-Mitchell

Mon 1/11

11:10 am-9:35 am

2 stops39h 25m

Barcelona-El Prat

Fri 1/15

1:35 pm-9:49 am

2 stops27h 14m

$756

MilwaukeeBarcelona

MKE Milwaukee-Mitchell - BCN Barcelona-El Prat

MKEBCN

Milwaukee-Mitchell

Mon 1/11

7:00 pm-8:20 am

2 stops30h 20m

Barcelona-El Prat

Fri 1/15

1:35 pm-1:43 pm

2 stops31h 08m

$757

MilwaukeeBarcelona

MKE Milwaukee-Mitchell - BCN Barcelona-El Prat

MKEBCN

Milwaukee-Mitchell

Mon 1/11

6:45 pm-8:20 am

1 stop30h 35m

Barcelona-El Prat

Fri 1/15

1:35 pm-3:04 pm

2 stops32h 29m

$759

MilwaukeeBarcelona

MKE Milwaukee-Mitchell - BCN Barcelona-El Prat

MKEBCN

Milwaukee-Mitchell

Sat 11/14

2:23 pm-9:35 am

2 stops36h 12m

Barcelona-El Prat

Fri 12/4

1:35 pm-10:39 pm

2 stops40h 04m

$762

MilwaukeeBarcelona

MKE Milwaukee-Mitchell - BCN Barcelona-El Prat

MKEBCN

Milwaukee-Mitchell

Mon 9/28

10:55 am-9:45 am

1 stop15h 50m

Barcelona-El Prat

Tue 10/6

12:50 pm-10:02 am

1 stop28h 12m

$776

MilwaukeeBarcelona

MKE Milwaukee-Mitchell - BCN Barcelona-El Prat

MKEBCN

Milwaukee-Mitchell

Sun 11/8

5:00 am-9:35 am

2 stops21h 35m

Barcelona-El Prat

Fri 12/4

1:35 pm-10:39 pm

2 stops40h 04m

$786

MilwaukeeBarcelona

MKE Milwaukee-Mitchell - BCN Barcelona-El Prat

MKEBCN

Milwaukee-Mitchell

Mon 9/28

8:14 pm-5:35 pm

2 stops14h 21m

Barcelona-El Prat

Tue 10/6

10:45 am-9:52 pm

1 stop18h 07m

$802

MilwaukeeBarcelona

MKE Milwaukee-Mitchell - BCN Barcelona-El Prat

MKEBCN

Milwaukee-Mitchell

Sun 11/15

2:55 pm-12:40 pm

2 stops14h 45m

Barcelona-El Prat

Fri 12/4

12:40 pm-10:37 pm

2 stops16h 57m

$802

MilwaukeeBarcelona

MKE Milwaukee-Mitchell - BCN Barcelona-El Prat

MKEBCN

Milwaukee-Mitchell

Wed 9/30

12:22 pm-10:10 am

1 stop14h 48m

Barcelona-El Prat

Wed 10/7

12:50 pm-11:34 pm

1 stop17h 44m

$805
Quickest round-trip

MilwaukeeBarcelona

MKE Milwaukee-Mitchell - BCN Barcelona-El Prat

MKEBCN

Milwaukee-Mitchell

Fri 11/13

2:55 pm-11:35 am

2 stops13h 40m

Barcelona-El Prat

Fri 12/4

12:40 pm-10:37 pm

2 stops16h 57m

$865

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 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?

Prices are currently low for flights on this route.

Typical prices usually range from $775 to $979.
The lowest price recently found on this route was $756.

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 November to fly from Milwaukee, when ticket prices are also cheap, with an average price of $508.

Cheap Milwaukee to Barcelona flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Milwaukee to Barcelona

Best Price Found

$539

Fastest flight time

15h 35m

Direct flights

None
The best one-way flight to Barcelona from Milwaukee in the past 72 hours is $539. The best round-trip flight deal from Milwaukee to Barcelona found on momondo in the last 72 hours is $756.
The fastest flight from Milwaukee to Barcelona takes 15h 35m
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 15h 35m.

  • 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
8,169 reviews
Search British Airways flights
United AirlinesPriceFrom $508Free CancellationRating
7.4
10,107 reviews
Search United Airlines flights
American AirlinesPriceFrom $644Free CancellationRating
7.1
11,946 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.

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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