$769+ Cheap flights from Milwaukee (MKE) to Barcelona
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — BCN
Jul 11 — Jul 181
Round-trip
1 adult, Economy
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Cheapest flights from Milwaukee to BarcelonaExplore the most affordable flight options available from Milwaukee to Barcelona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 11, 2026.
Explore the most affordable flight options available from Milwaukee to Barcelona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 11, 2026.
This American Airlines deal was found by Cheapflights users on 6/11. 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 6/11![American Airlines logo]()
$769
This British Airways deal was found by Cheapflights users on 6/10. 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 9/288:14 pm
MKE
- BCN
2 stops14h 21m
British Airways
Tue 10/610:15 am
BCN
- MKE
2 stops16h 25m
British Airways
Deal found 6/10![British Airways logo]()
$787
This United Airlines deal was found by Cheapflights users on 6/9. 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 10/126:15 am
MKE
- BCN
2 stops25h 15m
United Airlines
Fri 10/161:15 pm
BCN
- MKE
2 stops29h 15m
United Airlines
Deal found 6/9![United Airlines logo]()
$796
This American Airlines deal was found by Cheapflights users on 6/10. 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 6/10![American Airlines logo]()
$824
This British Airways deal was found by Cheapflights users on 6/10. 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 11/47:03 pm
MKE
- BCN
2 stops16h 22m
British Airways
Sun 11/226:40 am
BCN
- MKE
2 stops18h 03m
British Airways
Deal found 6/10![British Airways logo]()
$837
Best flights from Milwaukee to BarcelonaDiscover carefully curated flight deals from Milwaukee to Barcelona that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 11, 2026.
Discover carefully curated flight deals from Milwaukee to Barcelona that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 11, 2026.
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 8/1410:19 am
MKE
- BCN
1 stop19h 56m
United Airlines
Fri 8/2812:15 pm
BCN
- MKE
2 stops37h 07m
United Airlines
Deal found 6/7![United Airlines logo]()
$919
This British Airways 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/141:17 pm
MKE
- BCN
1 stop14h 38m
British Airways
Fri 8/2810:30 am
BCN
- MKE
1 stop16h 29m
British Airways
Deal found 6/7![British Airways logo]()
$939
This Delta deal was found by Cheapflights users on 6/8. 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.
Thu 7/234:47 pm
MKE
- BCN
2 stops17h 23m
Delta
Thu 7/3010:55 am
BCN
- MKE
1 stop15h 29m
Delta
Deal found 6/8![Delta logo]()
$1,039
This Virgin Atlantic deal was found by Cheapflights users on 6/8. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/612:51 pm
MKE
- BCN
1 stop16h 59m
Virgin Atlantic
Mon 8/1711:00 am
BCN
- MKE
1 stop16h 53m
Virgin Atlantic
Deal found 6/8![Virgin Atlantic logo]()
$1,047
This United Airlines deal was found by Cheapflights users on 6/8. 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 7/107:23 pm
MKE
- BCN
1 stop10h 52m
United Airlines
Wed 7/1512:15 pm
BCN
- MKE
2 stops33h 21m
United Airlines
Deal found 6/8![United Airlines logo]()
$1,015
This Delta deal was found by Cheapflights users on 6/10. 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.
Thu 7/99:39 am
MKE
- BCN
2 stops18h 36m
Delta
Wed 7/159:20 am
BCN
- MKE
2 stops17h 04m
Delta
Deal found 6/10![Delta logo]()
$1,044
This Delta deal was found by Cheapflights users on 6/8. 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.
Thu 8/64:47 pm
MKE
- BCN
2 stops17h 23m
Delta
Mon 8/1711:00 am
BCN
- MKE
1 stop19h 53m
Delta
Deal found 6/8![Delta logo]()
$1,051
This British Airways deal was found by Cheapflights users on 6/10. 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 6/151:28 pm
MKE
- BCN
1 stop14h 27m
British Airways
Mon 6/2210:30 am
BCN
- MKE
1 stop16h 28m
British Airways
Deal found 6/10![British Airways logo]()
$1,573
Last-minute flights from Milwaukee to BarcelonaDiscover last-minute flight deals from Milwaukee to Barcelona. Data last updated June 11, 2026 and is based on user searches.
Discover last-minute flight deals from Milwaukee to Barcelona. Data last updated June 11, 2026 and is based on user searches.
This Ovago 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/49:36 am
MKE
- BCN
1 stop17h 09m
JetBlue
Fri 7/1012:50 pm
BCN
- MKE
1 stop26h 55m
JetBlue
Deal found 6/7![JetBlue logo]()
$1,125
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/41:30 pm
MKE
- BCN
2 stops16h 40m
Lufthansa
Fri 7/107:00 pm
BCN
- MKE
2 stops27h 36m
Lufthansa
Deal found 6/7![Lufthansa logo]()
$1,153
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Thu 7/98:43 am
MKE
- BCN
1 stop19h 02m
American Airlines
Wed 7/1512:50 pm
BCN
- MKE
1 stop17h 54m
American Airlines
Deal found 6/10![American Airlines logo]()
$1,035
This Delta deal was found by Cheapflights users on 6/10. 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.
Thu 7/99:39 am
MKE
- BCN
2 stops18h 36m
Delta
Wed 7/1511:00 am
BCN
- MKE
1 stop15h 15m
Delta
Deal found 6/10![Delta logo]()
$1,039
This United Airlines deal was found by Cheapflights users on 6/8. 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 7/107:23 pm
MKE
- BCN
1 stop10h 52m
United Airlines
Wed 7/1512:15 pm
BCN
- MKE
2 stops33h 21m
United Airlines
Deal found 6/8![United Airlines logo]()
$1,015
This KLM deal was found by Cheapflights users on 6/8. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/1411:35 am
MKE
- BCN
1 stop14h 00m
KLM
Wed 7/2210:55 am
BCN
- MKE
1 stop15h 29m
KLM
Deal found 6/8![KLM logo]()
$975
This FlightHub deal was found by Cheapflights users on 6/8. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/147:23 pm
MKE
- BCN
2 stops15h 32m
Lufthansa
Wed 7/2211:50 am
BCN
- MKE
2 stops17h 39m
Lufthansa
Deal found 6/8![Lufthansa logo]()
$976
This United Airlines deal was found by Cheapflights users on 6/8. 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 7/148:50 am
MKE
- BCN
2 stops16h 10m
United Airlines
Wed 7/223:15 pm
BCN
- MKE
1 stop14h 14m
United Airlines
Deal found 6/8![United Airlines logo]()
$978
This Air Canada deal was found by Cheapflights users on 6/8. 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.
Tue 7/148:50 am
MKE
- BCN
2 stops16h 10m
Multiple Airlines
Wed 7/2212:15 pm
BCN
- MKE
3 stops17h 14m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$1,144
This Air Canada deal was found by Cheapflights users on 6/8. 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.
Tue 7/148:50 am
MKE
- BCN
3 stops16h 10m
Air Canada
Wed 7/2212:15 pm
BCN
- MKE
3 stops17h 14m
Air Canada
Deal found 6/8![Air Canada logo]()
$1,152
This United Airlines deal was found by Cheapflights users on 6/8. 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.
Thu 7/235:00 am
MKE
- BCN
2 stops20h 00m
United Airlines
Thu 7/306:00 am
BCN
- MKE
2 stops17h 42m
United Airlines
Deal found 6/8![United Airlines logo]()
$1,044
One-way flights from Milwaukee to BarcelonaSearch for one-way flight options from Milwaukee to Barcelona. Find affordable one-way fares based on user searches. Data last updated June 11, 2026.
Search for one-way flight options from Milwaukee to Barcelona. Find affordable one-way fares based on user searches. Data last updated June 11, 2026.
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 flugladen.de 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/168:50 am
MKE
- BCN
3 stops21h 30m
Multiple Airlines
Deal found 6/6![Multiple Airlines logo]()
$839
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
Find flight deals from Milwaukee to Barcelona
Discover tips and strategies to find the most affordable flight options for your journey from Milwaukee (MKE) to Barcelona (S37). 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 11, 2026.
Round-trip from | $769 (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 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 11, 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
Cheapest round-trip
MilwaukeeBarcelona
MKE - BCN
MKEBCN
Milwaukee-Mitchell
Fri 8/14
10:19 am-1:15 pm
1 stop19h 56m
Barcelona-El Prat
Fri 8/28
12:15 pm-6:22 pm
2 stops37h 07m
$919
MilwaukeeBarcelona
MKE - BCN
MKEBCN
Milwaukee-Mitchell
Fri 8/14
1:17 pm-10:55 am
1 stop14h 38m
Barcelona-El Prat
Fri 8/28
10:30 am-7:59 pm
1 stop16h 29m
$939
MilwaukeeBarcelona
MKE - BCN
MKEBCN
Milwaukee-Mitchell
Fri 7/10
7:23 pm-1:15 pm
1 stop10h 52m
Barcelona-El Prat
Wed 7/15
12:15 pm-2:36 pm
2 stops33h 21m
$1,015
MilwaukeeBarcelona
MKE - BCN
MKEBCN
Milwaukee-Mitchell
Thu 7/23
4:47 pm-5:10 pm
2 stops17h 23m
Barcelona-El Prat
Thu 7/30
10:55 am-7:24 pm
1 stop15h 29m
$1,039
MilwaukeeBarcelona
MKE - BCN
MKEBCN
Milwaukee-Mitchell
Thu 7/9
9:39 am-11:15 am
2 stops18h 36m
Barcelona-El Prat
Wed 7/15
9:20 am-7:24 pm
2 stops17h 04m
$1,044
MilwaukeeBarcelona
MKE - BCN
MKEBCN
Milwaukee-Mitchell
Thu 8/6
12:51 pm-12:50 pm
1 stop16h 59m
Barcelona-El Prat
Mon 8/17
11:00 am-8:53 pm
1 stop16h 53m
$1,047
MilwaukeeBarcelona
MKE - BCN
MKEBCN
Milwaukee-Mitchell
Thu 8/6
4:47 pm-5:10 pm
2 stops17h 23m
Barcelona-El Prat
Mon 8/17
11:00 am-11:53 pm
1 stop19h 53m
$1,051
Quickest round-trip
MilwaukeeBarcelona
MKE - BCN
MKEBCN
Milwaukee-Mitchell
Mon 6/15
1:28 pm-10:55 am
1 stop14h 27m
Barcelona-El Prat
Mon 6/22
10:30 am-7:58 pm
1 stop16h 28m
$1,573
Cheapest one-way
Quickest one-way
MilwaukeeBarcelona
MKE - BCN
MKEBCN
Milwaukee-Mitchell
Tue 6/16
9:36 am-9:45 am
1 stop17h 09m
$825
MilwaukeeBarcelona
MKE - BCN
MKEBCN
Milwaukee-Mitchell
Tue 6/16
8:50 am-1:20 pm
3 stops21h 30m
$839
Showing 1-10 of 11 resultsSorted by cheapest first
Best time to book a flight from Milwaukee to Barcelona
Have a flexible travel schedule? Discover the best time to fly to Barcelona from Milwaukee with our price prediction graph.
MKE-S37
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
MKE-S37
MKE-BCN
How much does it cost to fly round-trip from Milwaukee to Barcelona?
Reviews of airlines servicing Barcelona
Get insights into the airlines that provide service to Barcelona. 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. Reviews last updated June 11, 2026.
Get a feel of what it's like to fly with Delta,United Airlines, andAmerican Airlines from Milwaukee to Barcelona by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.8
Boarding
8.1
Comfort
7.8
Overall
7.9
Crew
8.5
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Boarding
8.1
Comfort
7.8
Overall
7.9
Crew
8.5
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Boarding
8.1
Comfort
7.8
Overall
7.9
Crew
8.5
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Boarding
8.1
Comfort
7.8
Overall
7.9
Crew
8.5
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Boarding
8.1
Comfort
7.8
Overall
7.9
Crew
8.5
Food
7.2
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. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Milwaukee to Barcelona
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Complete your trip
Complete your trip to Barcelona by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Milwaukee to Barcelona by cabin class
Find flights from Milwaukee to Barcelona, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Milwaukee and Barcelona flights
Browse other Milwaukee and Barcelona flight options. Last updated on June 11, 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 11, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Milwaukee to Barcelona
Discover the top 4 airlines that operate flights from Milwaukee to Barcelona. 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 11, 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 |