$359+ Cheap flights from Milwaukee (MKE) to Barcelona-El Prat (BCN)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/26. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — BCN
Jul 7 — Jul 141
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Milwaukee to Barcelona-El Prat with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Milwaukee to Barcelona-El Prat
Cheapest
Best
Last-minute
One-way
Cheapest flights from Milwaukee to Barcelona-El PratExplore the most affordable flight options available from Milwaukee to Barcelona-El Prat. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 7, 2026.
Explore the most affordable flight options available from Milwaukee to Barcelona-El Prat. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 7, 2026.
This American Airlines deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/288:14 pm
MKE
- BCN
2 stops14h 21m
American Airlines
Tue 10/612:50 pm
BCN
- MKE
1 stop17h 57m
American Airlines
Deal found 6/3![American Airlines logo]()
$770
This British Airways deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/148:16 pm
MKE
- BCN
2 stops15h 19m
British Airways
Wed 10/2112:20 pm
BCN
- MKE
1 stop15h 58m
British Airways
Deal found 6/2![British Airways logo]()
$771
This British Airways deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/281:18 pm
MKE
- BCN
2 stops15h 47m
British Airways
Tue 10/69:15 am
BCN
- MKE
2 stops17h 25m
British Airways
Deal found 6/3![British Airways logo]()
$781
This American Airlines deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/276:48 pm
MKE
- BCN
2 stops14h 42m
American Airlines
Fri 12/1112:00 pm
BCN
- MKE
2 stops19h 01m
American Airlines
Deal found 6/7![American Airlines logo]()
$824
This KAYAK deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2712:14 pm
MKE
- BCN
1 stop17h 56m
Lufthansa
Fri 12/1111:00 am
BCN
- MKE
1 stop14h 08m
Lufthansa
Deal found 6/4![Lufthansa logo]()
$852
This United Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/277:00 pm
MKE
- BCN
1 stop11h 10m
United Airlines
Fri 12/1111:00 am
BCN
- MKE
1 stop19h 27m
United Airlines
Deal found 6/5![United Airlines logo]()
$853
Best flights from Milwaukee to Barcelona-El PratDiscover carefully curated flight deals from Milwaukee to Barcelona-El Prat that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 7, 2026.
Discover carefully curated flight deals from Milwaukee to Barcelona-El Prat that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 7, 2026.
This British Airways deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/148:16 pm
MKE
- BCN
2 stops15h 19m
British Airways
Wed 10/2112:20 pm
BCN
- MKE
1 stop15h 58m
British Airways
Deal found 6/2![British Airways logo]()
$771
This American Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/287:30 am
MKE
- BCN
1 stop20h 05m
American Airlines
Tue 10/612:50 pm
BCN
- MKE
1 stop17h 57m
American Airlines
Deal found 6/4![American Airlines logo]()
$788
This United Airlines deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2711:10 am
MKE
- BCN
1 stop14h 10m
United Airlines
Fri 12/1111:00 am
BCN
- MKE
1 stop14h 08m
United Airlines
Deal found 6/7![United Airlines logo]()
$853
This British Airways deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/281:18 pm
MKE
- BCN
2 stops15h 47m
British Airways
Tue 10/69:15 am
BCN
- MKE
2 stops17h 25m
British Airways
Deal found 6/3![British Airways logo]()
$781
This American Airlines deal was found by Cheapflights users on 6/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2710:08 am
MKE
- BCN
1 stop16h 02m
American Airlines
Fri 12/1111:50 am
BCN
- MKE
2 stops18h 40m
American Airlines
Deal found 6/7![American Airlines logo]()
$843
This United Airlines deal was found by Cheapflights users on 6/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/143:15 pm
MKE
- BCN
1 stop15h 00m
United Airlines
Fri 8/2812:15 pm
BCN
- MKE
2 stops37h 07m
United Airlines
Deal found 6/2![United Airlines logo]()
$919
This British Airways deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/88:16 pm
MKE
- BCN
2 stops15h 04m
British Airways
Sun 10/187:50 am
BCN
- MKE
2 stops18h 50m
British Airways
Deal found 6/3![British Airways logo]()
$887
This United Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/36:20 am
MKE
- BCN
2 stops18h 40m
United Airlines
Mon 8/101:50 pm
BCN
- MKE
2 stops34h 25m
United Airlines
Deal found 6/5![United Airlines logo]()
$919
Last-minute flights from Milwaukee to Barcelona-El PratDiscover last-minute flight deals from Milwaukee to Barcelona-El Prat. Data last updated June 7, 2026 and is based on user searches.
Discover last-minute flight deals from Milwaukee to Barcelona-El Prat. Data last updated June 7, 2026 and is based on user searches.
This Justfly.com deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/67:23 pm
MKE
- BCN
2 stops15h 32m
Lufthansa
Mon 7/137:00 pm
BCN
- MKE
2 stops28h 42m
Lufthansa
Deal found 6/6![Lufthansa logo]()
$997
This United Airlines deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/67:23 pm
MKE
- BCN
1 stop10h 52m
United Airlines
Mon 7/1310:25 am
BCN
- MKE
2 stops39h 01m
United Airlines
Deal found 6/6![United Airlines logo]()
$1,002
This United Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/206:14 am
MKE
- BCN
1 stop19h 46m
United Airlines
Mon 7/273:15 pm
BCN
- MKE
1 stop14h 14m
United Airlines
Deal found 6/4![United Airlines logo]()
$1,045
This Justfly.com deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/207:23 pm
MKE
- BCN
2 stops20h 02m
Lufthansa
Mon 7/2711:50 am
BCN
- MKE
2 stops17h 39m
Lufthansa
Deal found 6/4![Lufthansa logo]()
$1,046
This Cheapflightsfares deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/217:23 pm
MKE
- BCN
2 stops15h 32m
Lufthansa
Mon 7/2711:50 am
BCN
- MKE
2 stops17h 39m
Lufthansa
Deal found 6/4![Lufthansa logo]()
$1,035
This Delta deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/225:42 pm
MKE
- BCN
1 stop12h 08m
Delta
Tue 7/286:20 am
BCN
- MKE
2 stops18h 57m
Delta
Deal found 6/4![Delta logo]()
$980
This United Airlines deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/243:11 pm
MKE
- BCN
1 stop15h 04m
United Airlines
Fri 7/311:15 pm
BCN
- MKE
3 stops27h 56m
United Airlines
Deal found 6/6![United Airlines logo]()
$1,033
This Delta deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/242:59 pm
MKE
- BCN
1 stop14h 51m
Delta
Fri 7/316:10 am
BCN
- MKE
2 stops18h 50m
Delta
Deal found 6/6![Delta logo]()
$1,047
This Cheapflightsfares deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/287:23 pm
MKE
- BCN
2 stops20h 02m
Lufthansa
Sat 8/810:20 am
BCN
- MKE
2 stops19h 09m
Lufthansa
Deal found 6/4![Lufthansa logo]()
$954
This United Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/286:14 am
MKE
- BCN
1 stop19h 46m
United Airlines
Sat 8/81:50 pm
BCN
- MKE
2 stops15h 39m
United Airlines
Deal found 6/4![United Airlines logo]()
$966
One-way flights from Milwaukee to Barcelona-El PratSearch for one-way flight options from Milwaukee to Barcelona-El Prat. Find affordable one-way fares based on user searches. Data last updated June 7, 2026.
Search for one-way flight options from Milwaukee to Barcelona-El Prat. Find affordable one-way fares based on user searches. Data last updated June 7, 2026.
This American Airlines deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/263:01 pm
MKE
- BCN
2 stops14h 19m
American Airlines
Deal found 6/5![American Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/157:05 pm
MKE
- BCN
2 stops29h 55m
United Airlines
Deal found 6/4![United Airlines logo]()
$467
This Kiwi.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/264:49 pm
MKE
- BCN
3 stops23h 31m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$495
This Cheapflightsfares deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/159:36 am
MKE
- BCN
1 stop17h 09m
JetBlue
Deal found 6/4![JetBlue logo]()
$508
This Air Canada deal was found by Cheapflights users on 6/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/158:30 am
MKE
- BCN
3 stops17h 50m
Air Canada
Deal found 6/4![Air Canada logo]()
$522
This Kiwi.com deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/166:49 pm
MKE
- BCN
3 stops44h 11m
Multiple Airlines
Deal found 6/5![Multiple Airlines logo]()
$767
This Flighttix deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/169:36 am
MKE
- BCN
1 stop17h 09m
JetBlue
Deal found 6/6![JetBlue logo]()
$825
This WestJet deal was found by Cheapflights users on 6/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WestJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/166:20 am
MKE
- BCN
2 stops23h 10m
WestJet
Deal found 6/6![WestJet logo]()
$895
This Flysmarter deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/166:50 pm
MKE
- BCN
2 stops13h 50m
British Airways
Deal found 6/5![British Airways logo]()
$906
Find flight deals from Milwaukee to Barcelona-El Prat
Discover tips and strategies to find the most affordable flight options for your journey from Milwaukee (MKE) to Barcelona-El Prat (BCN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $770 (American Airlines) |
One-way from | $359 (American Airlines) |
Popular in | May |
Cheapest in | November |
Average price | $1,391 |
Cheapflights Fare Finder
Customize your flight search to find flights from Milwaukee to Barcelona-El Prat 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, Cheapflights users made 2,558,603 searches. Data last updated June 7, 2026.
Use the filters below to find and compare flights from Milwaukee to Barcelona-El Prat Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
MilwaukeeBarcelona
MKE - BCN
MKEBCN
Milwaukee-Mitchell
Wed 10/14
8:16 pm-6:35 pm
2 stops15h 19m
Barcelona-El Prat
Wed 10/21
12:20 pm-9:18 pm
1 stop15h 58m
$771
MilwaukeeBarcelona
MKE - BCN
MKEBCN
Milwaukee-Mitchell
Mon 9/28
1:18 pm-12:05 pm
2 stops15h 47m
Barcelona-El Prat
Tue 10/6
9:15 am-7:40 pm
2 stops17h 25m
$781
MilwaukeeBarcelona
MKE - BCN
MKEBCN
Milwaukee-Mitchell
Mon 9/28
7:30 am-10:35 am
1 stop20h 05m
Barcelona-El Prat
Tue 10/6
12:50 pm-11:47 pm
1 stop17h 57m
$788
MilwaukeeBarcelona
MKE - BCN
MKEBCN
Milwaukee-Mitchell
Fri 11/27
10:08 am-9:10 am
1 stop16h 02m
Barcelona-El Prat
Fri 12/11
11:50 am-11:30 pm
2 stops18h 40m
$843
Quickest round-trip
MilwaukeeBarcelona
MKE - BCN
MKEBCN
Milwaukee-Mitchell
Fri 11/27
11:10 am-8:20 am
1 stop14h 10m
Barcelona-El Prat
Fri 12/11
11:00 am-6:08 pm
1 stop14h 08m
$853
MilwaukeeBarcelona
MKE - BCN
MKEBCN
Milwaukee-Mitchell
Thu 10/8
8:16 pm-6:20 pm
2 stops15h 04m
Barcelona-El Prat
Sun 10/18
7:50 am-7:40 pm
2 stops18h 50m
$887
MilwaukeeBarcelona
MKE - BCN
MKEBCN
Milwaukee-Mitchell
Fri 8/14
3:15 pm-1:15 pm
1 stop15h 00m
Barcelona-El Prat
Fri 8/28
12:15 pm-6:22 pm
2 stops37h 07m
$919
MilwaukeeBarcelona
MKE - BCN
MKEBCN
Milwaukee-Mitchell
Mon 8/3
6:20 am-8:00 am
2 stops18h 40m
Barcelona-El Prat
Mon 8/10
1:50 pm-5:15 pm
2 stops34h 25m
$919
Cheapest one-way
MilwaukeeBarcelona
MKE - BCN
MKEBCN
Milwaukee-Mitchell
Mon 10/26
3:01 pm-11:20 am
2 stops14h 19m
$359
MilwaukeeBarcelona
MKE - BCN
MKEBCN
Milwaukee-Mitchell
Sat 8/15
7:05 pm-8:00 am
2 stops29h 55m
$467
Showing 1-10 of 16 resultsSorted by cheapest first
Compare providers for flights from Milwaukee to Barcelona-El Prat
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Milwaukee to Barcelona-El Prat in June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*2 stars |
- Most accurate provider: When it comes to deals on Milwaukee-Barcelona-El Prat Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Milwaukee-Barcelona-El Prat Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Milwaukee-Barcelona-El Prat Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Milwaukee-Barcelona-El Prat Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Milwaukee-Barcelona-El Prat Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Milwaukee to Barcelona-El Prat
Have a flexible travel schedule? Discover the best time to fly to Barcelona-El Prat from Milwaukee with our price prediction graph.
MKE-BCN
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Milwaukee to Barcelona-El Prat Airport
Reviews of airlines servicing Barcelona-El Prat
Get insights into the airlines that provide service to Barcelona-El Prat. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Barcelona-El Prat. Reviews last updated June 7, 2026.
Read through reviews of airlines operating flights from Milwaukee to Barcelona-El Prat Airport, such as Delta,United Airlines, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
7.2
Entertainment
7.8
Comfort
7.8
Crew
8.5
Boarding
8.1
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Entertainment
7.8
Comfort
7.8
Crew
8.5
Boarding
8.1
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Entertainment
7.8
Comfort
7.8
Crew
8.5
Boarding
8.1
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Entertainment
7.8
Comfort
7.8
Crew
8.5
Boarding
8.1
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Food
7.2
Entertainment
7.8
Comfort
7.8
Crew
8.5
Boarding
8.1
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Related info for your journey
Find useful and relevant information for your journey from Milwaukee to Barcelona-El Prat. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Barcelona-El Prat Airport?
Book flights to Barcelona-El Prat Airport if you plan to visit one of these locationsRoses
Calella
L'Hospitalet de Llobregat
Cadaques
El Prat de Llobregat
Badalona
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Barcelona-El Prat flight routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Milwaukee
Popular flights
Alternative routes for Milwaukee to Barcelona-El Prat
See prices for flight routes from nearby airports that may be better suited for you.
Other flights to Barcelona-El Prat
Explore flights to Barcelona-El Prat departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 7, 2026.
Complete your trip
Complete your trip to Barcelona-El Prat by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Milwaukee to Barcelona-El Prat by cabin class
Find flights from Milwaukee to Barcelona-El Prat, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Milwaukee and Barcelona-El Prat flights
Browse other Milwaukee and Barcelona-El Prat flight options. Last updated on June 7, 2026.
Other flights from Milwaukee
Browse through other flights departing from Milwaukee. Flights are based on user searches made on Cheapflights and were last updated on June 7, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Milwaukee to Barcelona-El Prat
Discover the top 4 airlines that operate flights from Milwaukee to Barcelona-El Prat. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 7, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$457 | Average$698 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$499 | Average$808 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$609 | Average$775 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$689 | Average$989 | FlexibilityNo cancel fee | On-timeN/A |