$265+ Cheap flights from Milwaukee (MKE) to Barcelona
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 10/18. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — BCN
Sep 3 — Sep 101
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 August 4, 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 August 4, 2026.
This FlightHub deal was found by Cheapflights users on 8/4. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/85:00 am -
2 stops21h 35m
Fri 12/41:35 pm -
2 stops40h 04m
Deal found 8/4![Air Canada logo]()
$756
This Expedia deal was found by Cheapflights users on 7/31. 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.
Wed 11/117:24 pm -
2 stops14h 06m
Wed 11/189:15 am -
2 stops16h 19m
Deal found 7/31![British Airways logo]()
$757
This KAYAK deal was found by Cheapflights users on 8/2. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2810:55 am -
1 stop15h 50m
Tue 10/612:50 pm -
1 stop28h 12m
Deal found 8/2![JetBlue logo]()
$759
This FlightHub deal was found by Cheapflights users on 8/4. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/712:03 pm -
2 stops38h 32m
Fri 12/41:35 pm -
2 stops40h 04m
Deal found 8/4![Air Canada logo]()
$762
This United Airlines deal was found by Cheapflights users on 8/4. 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.
Sun 11/86:18 pm -
1 stop11h 57m
Tue 12/811:00 am -
1 stop14h 08m
Deal found 8/4![United Airlines logo]()
$773
This United Airlines deal was found by Cheapflights users on 8/4. 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 11/96:18 pm -
1 stop11h 57m
Tue 12/86:50 am -
2 stops21h 04m
Deal found 8/4![United Airlines logo]()
$776
This United Airlines deal was found by Cheapflights users on 7/30. 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 12/76:10 am -
1 stop19h 10m
Wed 12/910:30 am -
2 stops19h 09m
Deal found 7/30![United Airlines logo]()
$777
This United Airlines deal was found by Cheapflights users on 8/4. 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.
Sun 11/86:00 am -
1 stop19h 20m
Thu 12/310:30 am -
2 stops15h 09m
Deal found 8/4![United Airlines logo]()
$778
This United Airlines deal was found by Cheapflights users on 8/4. 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 11/77:03 pm -
1 stop30h 17m
Fri 12/411:00 am -
1 stop14h 08m
Deal found 8/4![United Airlines logo]()
$779
This United Airlines deal was found by Cheapflights users on 8/1. 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 9/286:32 pm -
1 stop11h 43m
Tue 10/61:15 pm -
2 stops32h 56m
Deal found 8/1![United Airlines logo]()
$788
This American Airlines deal was found by Cheapflights users on 7/31. 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 -
2 stops14h 21m
Tue 10/612:50 pm -
1 stop17h 24m
Deal found 7/31![American Airlines logo]()
$799
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 August 4, 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 August 4, 2026.
This United Airlines deal was found by Cheapflights users on 8/1. 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 1/1811:10 am -
1 stop14h 10m
Fri 1/221:35 pm -
2 stops35h 33m
Deal found 8/1![United Airlines logo]()
$753
This Justfly.com deal was found by Cheapflights users on 8/2. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/286:32 pm -
2 stops16h 23m
Tue 10/612:40 pm -
2 stops17h 19m
Deal found 8/2![Lufthansa logo]()
$801
This Finnair deal was found by Cheapflights users on 8/3. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/110:46 am -
2 stops19h 24m
Mon 12/79:15 pm -
2 stops20h 52m
Deal found 8/3![Multiple Airlines logo]()
$810
This United Airlines deal was found by Cheapflights users on 7/30. 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 12/76:10 am -
1 stop19h 10m
Wed 12/911:00 am -
1 stop19h 27m
Deal found 7/30![United Airlines logo]()
$773
This United Airlines deal was found by Cheapflights users on 8/4. 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.
Wed 11/259:33 am -
1 stop20h 42m
Fri 12/46:50 am -
2 stops17h 23m
Deal found 8/4![United Airlines logo]()
$776
This United Airlines deal was found by Cheapflights users on 7/31. 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 9/286:32 pm -
1 stop11h 43m
Tue 10/63:15 pm -
1 stop13h 10m
Deal found 7/31![United Airlines logo]()
$803
This United Airlines deal was found by Cheapflights users on 8/4. 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 11/2411:06 am -
1 stop14h 14m
Sat 12/511:00 am -
1 stop14h 08m
Deal found 8/4![United Airlines logo]()
$823
Last-minute flights from Milwaukee to BarcelonaDiscover last-minute flight deals from Milwaukee to Barcelona. Data last updated August 4, 2026 and is based on user searches.
Discover last-minute flight deals from Milwaukee to Barcelona. Data last updated August 4, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 7/31. 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.
Fri 8/149:36 am -
1 stop17h 09m
Tue 8/2512:50 pm -
1 stop26h 54m
Deal found 7/31![JetBlue logo]()
$931
This Travelocity deal was found by Cheapflights users on 8/4. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/229:36 am -
1 stop17h 09m
Fri 8/2812:50 pm -
1 stop26h 54m
Deal found 8/4![JetBlue logo]()
$807
This FlightHub deal was found by Cheapflights users on 8/1. 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.
Mon 8/315:17 pm -
2 stops19h 28m
Mon 9/77:00 pm -
2 stops29h 30m
Deal found 8/1![Lufthansa logo]()
$922
This United Airlines deal was found by Cheapflights users on 7/31. 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.
Sun 9/136:05 am -
1 stop19h 55m
Sun 9/208:00 am -
2 stops17h 54m
Deal found 7/31![United Airlines logo]()
$942
This KAYAK deal was found by Cheapflights users on 8/2. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2810:55 am -
1 stop15h 50m
Tue 10/612:50 pm -
1 stop28h 12m
Deal found 8/2![JetBlue logo]()
$759
This United Airlines deal was found by Cheapflights users on 8/1. 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 9/286:32 pm -
1 stop11h 43m
Tue 10/61:15 pm -
2 stops32h 56m
Deal found 8/1![United Airlines logo]()
$788
This American Airlines deal was found by Cheapflights users on 7/31. 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 -
2 stops14h 21m
Tue 10/612:50 pm -
1 stop17h 24m
Deal found 7/31![American Airlines logo]()
$799
This Cheapflightsfares deal was found by Cheapflights users on 7/31. 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.
Mon 9/286:32 pm -
2 stops20h 53m
Tue 10/66:40 am -
2 stops21h 45m
Deal found 7/31![Lufthansa logo]()
$801
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 August 4, 2026.
Search for one-way flight options from Milwaukee to Barcelona. Find affordable one-way fares based on user searches. Data last updated August 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/188:10 pm -
2 stops38h 45m
Deal found 8/4![Multiple Airlines logo]()
$265
This Cheapflightsfares deal was found by Cheapflights users on 8/1. 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 8/299:36 am -
1 stop17h 09m
Deal found 8/1![JetBlue logo]()
$440
This TravelUp deal was found by Cheapflights users on 8/4. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1812:05 pm -
1 stop18h 10m
Deal found 8/4![Lufthansa logo]()
$461
This United Airlines deal was found by Cheapflights users on 8/1. 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 8/295:17 pm -
2 stops32h 03m
Deal found 8/1![United Airlines logo]()
$469
This United Airlines deal was found by Cheapflights users on 8/4. 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 9/16:15 am -
2 stops24h 50m
Deal found 8/4![United Airlines logo]()
$472
This Air Canada deal was found by Cheapflights users on 8/4. 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.
Sun 10/187:18 am -
3 stops17h 42m
Deal found 8/4![Air Canada logo]()
$475
This Kiwi.com deal was found by Cheapflights users on 8/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/112:10 pm -
3 stops54h 00m
Deal found 8/4![Multiple Airlines logo]()
$478
This Air France deal was found by Cheapflights users on 8/4. 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 France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/111:31 am -
1 stop14h 04m
Deal found 8/4![Air France logo]()
$635
This TAP AIR PORTUGAL deal was found by Cheapflights users on 8/1. 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 TAP AIR PORTUGAL is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/299:36 am -
3 stops29h 14m
Deal found 8/1![Multiple Airlines logo]()
$908
This BusinessClass deal was found by Cheapflights users on 8/4. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/186:02 pm -
1 stop32h 03m
Deal found 8/4![Iberia logo]()
$3,765
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 August 4, 2026.
Round-trip from | $745 (Expedia) |
|---|---|
One-way from | $265 (Kiwi.com) |
Popular in | May |
Cheapest in | November |
Average price | $775 |
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 August 4, 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
Mon 1/18
11:10 am-8:20 am
1 stop14h 10m
Barcelona-El Prat
Fri 1/22
1:35 pm-6:08 pm
2 stops35h 33m
$753
MilwaukeeBarcelona
MKE - BCN
MKEBCN
Milwaukee-Mitchell
Mon 12/7
6:10 am-8:20 am
1 stop19h 10m
Barcelona-El Prat
Wed 12/9
11:00 am-11:27 pm
1 stop19h 27m
$773
MilwaukeeBarcelona
MKE - BCN
MKEBCN
Milwaukee-Mitchell
Wed 11/25
9:33 am-1:15 pm
1 stop20h 42m
Barcelona-El Prat
Fri 12/4
6:50 am-5:13 pm
2 stops17h 23m
$776
MilwaukeeBarcelona
MKE - BCN
MKEBCN
Milwaukee-Mitchell
Mon 9/28
6:32 pm-5:55 pm
2 stops16h 23m
Barcelona-El Prat
Tue 10/6
12:40 pm-10:59 pm
2 stops17h 19m
$801
Quickest round-trip
MilwaukeeBarcelona
MKE - BCN
MKEBCN
Milwaukee-Mitchell
Mon 9/28
6:32 pm-1:15 pm
1 stop11h 43m
Barcelona-El Prat
Tue 10/6
3:15 pm-9:25 pm
1 stop13h 10m
$803
MilwaukeeBarcelona
MKE - BCN
MKEBCN
Milwaukee-Mitchell
Tue 12/1
10:46 am-1:10 pm
2 stops19h 24m
Barcelona-El Prat
Mon 12/7
9:15 pm-11:07 am
2 stops20h 52m
$810
MilwaukeeBarcelona
MKE - BCN
MKEBCN
Milwaukee-Mitchell
Tue 11/24
11:06 am-8:20 am
1 stop14h 14m
Barcelona-El Prat
Sat 12/5
11:00 am-6:08 pm
1 stop14h 08m
$823
Cheapest one-way
MilwaukeeBarcelona
MKE - BCN
MKEBCN
Milwaukee-Mitchell
Sun 10/18
8:10 pm-5:55 pm
2 stops38h 45m
$265
MilwaukeeBarcelona
MKE - BCN
MKEBCN
Milwaukee-Mitchell
Sat 8/29
9:36 am-9:45 am
1 stop17h 09m
$440
MilwaukeeBarcelona
MKE - BCN
MKEBCN
Milwaukee-Mitchell
Sun 10/18
12:05 pm-1:15 pm
1 stop18h 10m
$461
Showing 1-10 of 13 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?
Airfare is below average for this route at the moment.
Milwaukee to Barcelona flights typically cost between $775 and $979 in January.The cheapest round-trip price found within the last 5 days was $745 on Multiple Airlines (Jan 18-Jan 22).
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 August 4, 2026.
Get a feel of what it's like to fly with United Airlines and American 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.
Food
6.6
Entertainment
7.1
Crew
8.1
Comfort
7.3
Boarding
7.7
Overall
7.4
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Food
6.6
Entertainment
7.1
Crew
8.1
Comfort
7.3
Boarding
7.7
Overall
7.4
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Food
6.6
Entertainment
7.1
Crew
8.1
Comfort
7.3
Boarding
7.7
Overall
7.4
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
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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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 August 4, 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 August 4, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 2 airlines flying from Milwaukee to Barcelona
Discover the top 2 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 August 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$508 | Average$1,370 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$644 | Average$845 | FlexibilityNo cancel fee | On-time71% |