What is the cheapest airline that flies from Milwaukee-Mitchell to Barcelona?

Lufthansa, Delta, and United Airlines are the most popular carriers operating from Milwaukee-Mitchell to Barcelona

What airlines fly to Barcelona?

United Airlines, American Airlines and British Airways 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 50% 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.

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?

As of September 2026, there are 3 operators available to choose from 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.

$418 Cheap Flights from Milwaukee to Barcelona in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Milwaukee to Barcelona

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:16 pm - 8:35 amMKE Milwaukee-Mitchell-BCN Barcelona-El Prat

12h 19m2 stops Detroit Metropolitan Wayne County New York John F Kennedy Intl

10:35 am - 8:15 pmBCN Barcelona-El Prat-MKE Milwaukee-Mitchell

16h 40m2 stops New York John F Kennedy Intl Detroit Metropolitan Wayne County

$491Virgin Atlantic

Mon, Nov 9 - Tue, Nov 24

1:16 pm - 8:35 amMKE Milwaukee-Mitchell-BCN Barcelona-El Prat

12h 19m2 stops Detroit Metropolitan Wayne County New York John F Kennedy Intl

10:50 am - 9:02 pmBCN Barcelona-El Prat-MKE Milwaukee-Mitchell

17h 12m1 stop Atlanta Hartsfield-Jackson

$491Virgin Atlantic

Mon, Nov 9 - Tue, Nov 24

10:20 am - 8:40 amMKE Milwaukee-Mitchell-BCN Barcelona-El Prat

15h 20m1 stop Atlanta Hartsfield-Jackson

10:50 am - 9:02 pmBCN Barcelona-El Prat-MKE Milwaukee-Mitchell

17h 12m1 stop Atlanta Hartsfield-Jackson

$491Virgin Atlantic

Mon, Nov 9 - Tue, Nov 24

6:18 pm - 1:15 pmMKE Milwaukee-Mitchell-BCN Barcelona-El Prat

11h 57m1 stop Chicago O'Hare Intl

3:10 pm - 10:15 pmBCN Barcelona-El Prat-MKE Milwaukee-Mitchell

14h 05m1 stop Chicago O'Hare Intl

$706United Airlines

Mon, Nov 9 - Wed, Nov 18

6:18 pm - 1:15 pmMKE Milwaukee-Mitchell-BCN Barcelona-El Prat

11h 57m1 stop Chicago O'Hare Intl

3:10 pm - 1:32 pmBCN Barcelona-El Prat-MKE Milwaukee-Mitchell

29h 22m1 stop Chicago O'Hare Intl

$706United Airlines

Sun, Nov 1 - Sun, Nov 8

5:00 am - 8:00 amMKE Milwaukee-Mitchell-BCN Barcelona-El Prat

20h 00m2 stops Chicago O'Hare Intl Montreal Pierre Elliott Trudeau Intl

3:15 pm - 1:43 pmBCN Barcelona-El Prat-MKE Milwaukee-Mitchell

29h 28m1 stop Chicago O'Hare Intl

$709United Airlines

Wed, Oct 14 - Wed, Oct 21

7:45 am - 10:45 amMKE Milwaukee-Mitchell-BCN Barcelona-El Prat

20h 00m1 stop Chicago O'Hare Intl

12:50 pm - 8:57 pmBCN Barcelona-El Prat-MKE Milwaukee-Mitchell

15h 07m1 stop Philadelphia

$901American Airlines

Thu, Oct 15 - Mon, Oct 19

2:58 pm - 10:45 amMKE Milwaukee-Mitchell-BCN Barcelona-El Prat

12h 47m1 stop Chicago O'Hare Intl

12:50 pm - 8:57 pmBCN Barcelona-El Prat-MKE Milwaukee-Mitchell

15h 07m1 stop Philadelphia

$901American Airlines

Thu, Oct 15 - Mon, Oct 19

7:19 pm - 10:55 amMKE Milwaukee-Mitchell-BCN Barcelona-El Prat

32h 36m1 stop Chicago O'Hare Intl

9:20 pm - 9:47 pmBCN Barcelona-El Prat-MKE Milwaukee-Mitchell

31h 27m2 stops London Heathrow Chicago O'Hare Intl

$912British Airways

Fri, Oct 9 - Sun, Oct 18

7:19 pm - 4:10 pmMKE Milwaukee-Mitchell-BCN Barcelona-El Prat

14h 51m2 stops Chicago O'Hare Intl London Heathrow

10:30 am - 6:36 pmBCN Barcelona-El Prat-MKE Milwaukee-Mitchell

15h 06m1 stop Chicago O'Hare Intl

$965British Airways

Thu, Mar 18 - Mon, Mar 29

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

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

Trusted and free

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

Price Alerts

Not ready to book? to track prices.

Search flight deals

United Airlines flights from Milwaukee to Barcelona

Our best United Airlines deals on Milwaukee to Barcelona flight tickets

United Airlines

Nov 1

MKE6:18 pmMilwaukee-Mitchell

11h 57m

1 stop

BCN1:15 pmBarcelona-El Prat

Nov 8

BCN3:10 pmBarcelona-El Prat

29h 22m

1 stop

MKE1:32 pmMilwaukee-Mitchell

$706

United Airlines

Oct 4

MKE6:32 pmMilwaukee-Mitchell

11h 43m

1 stop

BCN1:15 pmBarcelona-El Prat

Oct 16

BCN6:00 amBarcelona-El Prat

32h 07m

2 stops

MKE7:07 amMilwaukee-Mitchell

$709

United Airlines

Oct 4

MKE6:15 amMilwaukee-Mitchell

19h 05m

2 stops

BCN8:20 amBarcelona-El Prat

Oct 16

BCN12:00 pmBarcelona-El Prat

26h 07m

2 stops

MKE7:07 amMilwaukee-Mitchell

$711

Lufthansa flights from Milwaukee to Barcelona

Our best Lufthansa deals on Milwaukee to Barcelona flight tickets

Lufthansa

Oct 4

MKE6:32 pmMilwaukee-Mitchell

11h 43m

1 stop

BCN1:15 pmBarcelona-El Prat

Oct 16

BCN3:15 pmBarcelona-El Prat

34h 54m

1 stop

MKE7:09 pmMilwaukee-Mitchell

$725

Lufthansa

Nov 1

MKE6:18 pmMilwaukee-Mitchell

35h 42m

2 stops

BCN1:00 pmBarcelona-El Prat

Nov 8

BCN8:25 pmBarcelona-El Prat

31h 25m

2 stops

MKE8:50 pmMilwaukee-Mitchell

$741

Lufthansa

Dec 24

MKE7:00 pmMilwaukee-Mitchell

15h 35m

2 stops

BCN5:35 pmBarcelona-El Prat

Dec 31

BCN1:15 pmBarcelona-El Prat

30h 00m

2 stops

MKE12:15 pmMilwaukee-Mitchell

$797

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

MilwaukeeBarcelona

MKE Milwaukee-Mitchell - BCN Barcelona-El Prat

MKEBCN

Milwaukee-Mitchell

Mon 11/9

1:16 pm-8:35 am

2 stops12h 19m

Barcelona-El Prat

Tue 11/24

10:35 am-8:15 pm

2 stops16h 40m

$491

MilwaukeeBarcelona

MKE Milwaukee-Mitchell - BCN Barcelona-El Prat

MKEBCN

Milwaukee-Mitchell

Mon 11/9

1:16 pm-8:35 am

2 stops12h 19m

Barcelona-El Prat

Tue 11/24

10:50 am-9:02 pm

1 stop17h 12m

$491

MilwaukeeBarcelona

MKE Milwaukee-Mitchell - BCN Barcelona-El Prat

MKEBCN

Milwaukee-Mitchell

Mon 11/9

10:20 am-8:40 am

1 stop15h 20m

Barcelona-El Prat

Tue 11/24

10:50 am-9:02 pm

1 stop17h 12m

$491

Quickest round-trip

MilwaukeeBarcelona

MKE Milwaukee-Mitchell - BCN Barcelona-El Prat

MKEBCN

Milwaukee-Mitchell

Mon 11/9

6:18 pm-1:15 pm

1 stop11h 57m

Barcelona-El Prat

Wed 11/18

3:10 pm-10:15 pm

1 stop14h 05m

$706

MilwaukeeBarcelona

MKE Milwaukee-Mitchell - BCN Barcelona-El Prat

MKEBCN

Milwaukee-Mitchell

Sun 11/1

6:18 pm-1:15 pm

1 stop11h 57m

Barcelona-El Prat

Sun 11/8

3:10 pm-1:32 pm

1 stop29h 22m

$706

MilwaukeeBarcelona

MKE Milwaukee-Mitchell - BCN Barcelona-El Prat

MKEBCN

Milwaukee-Mitchell

Wed 10/14

5:00 am-8:00 am

2 stops20h 00m

Barcelona-El Prat

Wed 10/21

3:15 pm-1:43 pm

1 stop29h 28m

$709

MilwaukeeBarcelona

MKE Milwaukee-Mitchell - BCN Barcelona-El Prat

MKEBCN

Milwaukee-Mitchell

Thu 10/15

7:45 am-10:45 am

1 stop20h 00m

Barcelona-El Prat

Mon 10/19

12:50 pm-8:57 pm

1 stop15h 07m

$901

MilwaukeeBarcelona

MKE Milwaukee-Mitchell - BCN Barcelona-El Prat

MKEBCN

Milwaukee-Mitchell

Thu 10/15

2:58 pm-10:45 am

1 stop12h 47m

Barcelona-El Prat

Mon 10/19

12:50 pm-8:57 pm

1 stop15h 07m

$901

MilwaukeeBarcelona

MKE Milwaukee-Mitchell - BCN Barcelona-El Prat

MKEBCN

Milwaukee-Mitchell

Fri 10/9

7:19 pm-10:55 am

1 stop32h 36m

Barcelona-El Prat

Sun 10/18

9:20 pm-9:47 pm

2 stops31h 27m

$912

MilwaukeeBarcelona

MKE Milwaukee-Mitchell - BCN Barcelona-El Prat

MKEBCN

Milwaukee-Mitchell

Thu 3/18

7:19 pm-4:10 pm

2 stops14h 51m

Barcelona-El Prat

Mon 3/29

10:30 am-6:36 pm

1 stop15h 06m

$965

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

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	$418
Fastest flight time	11h 57m
Direct flights	None

The best one-way flight to Barcelona from Milwaukee in the past 72 hours is $418. The best round-trip flight deal from Milwaukee to Barcelona found on momondo in the last 72 hours is $491.

The fastest flight from Milwaukee to Barcelona takes 11h 57m

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 57m.
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?
As of September 2026, there are 3 operators available to choose from 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 Airways	PriceFrom $457	Free Cancellation	Rating 6.7 8,229 reviews	Search British Airways flights
United Airlines	PriceFrom $508	Free Cancellation	Rating 7.4 10,232 reviews	Search United Airlines flights
American Airlines	PriceFrom $644	Free Cancellation	Rating 7.0 12,087 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

Mon 10/19

Mon 10/26

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Spain

Nearby airports

Airlines

Other Spain destinations

Other flights from Milwaukee

Complete your trip

Feeling lucky

Fly into one of these airports located in Barcelona

Barcelona-El Prat Airport

Girona Costa Brava Airport

Cheap flights from Milwaukee to Barcelona from $418

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 12/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Milwaukee to Barcelona

Cheap round-trip flights

Cheap one-way flights

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

United Airlines flights from Milwaukee to Barcelona

Our best United Airlines deals on Milwaukee to Barcelona flight tickets

Lufthansa flights from Milwaukee to Barcelona

Our best Lufthansa deals on Milwaukee to Barcelona flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Milwaukee to Barcelona that are best for you.

See travel insights to Barcelona from

How to get the cheapest flight ticket from Milwaukee to Barcelona

What is the cheapest month to fly to Barcelona?

What is the cheapest airline that flies from Milwaukee-Mitchell to Barcelona?

What airlines fly to Barcelona?

Cheap Milwaukee to Barcelona flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Milwaukee to Barcelona

Best airlines flying from Milwaukee to Barcelona

Compare and see reviews for airlines that fly from Milwaukee to Barcelona with momondo

Why use momondo?

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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

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

Fly your favorite airline to Barcelona

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Popular cities in Spain

Popular flights according to clicks in the last 7 days on momondo

Fly to other destinations from Milwaukee

According to popular flight searches on momondo this year

Complete your trip to Barcelona

Explore popular destinations other users love

According to popular flight searches on momondo this year