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Barcelona-El Prat

$472+ Cheap flights from Oshkosh, WI to Barcelona-El Prat (BCN)

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 2/6. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — BCN
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Oshkosh to Barcelona-El Prat

Best flights from Oshkosh to Barcelona-El Prat
Discover carefully curated flight deals from Oshkosh to Barcelona-El Prat that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/15. 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 2/65:23 pmATW - BCN
2 stops17h 12mUnited Airlines
Tue 2/101:35 pmBCN - ATW
2 stops31h 34mUnited Airlines
Deal found 12/15$472
This Cheapflightsfares deal was found by Cheapflights users on 12/16. 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.
Sun 5/175:35 pmATW - BCN
1 stop12h 40mLufthansa
Wed 6/33:15 pmBCN - ATW
1 stop12h 43mLufthansa
Deal found 12/16$761
This Cheapflightsfares deal was found by Cheapflights users on 12/16. 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 5/181:10 pmATW - BCN
2 stops19h 20mLufthansa
Tue 6/23:15 pmBCN - ATW
1 stop12h 43mLufthansa
Deal found 12/16$779
This United Airlines deal was found by Cheapflights users on 12/16. 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 5/175:35 pmATW - BCN
1 stop12h 40mUnited Airlines
Wed 6/31:15 pmBCN - ATW
2 stops32h 55mUnited Airlines
Deal found 12/16$791

Find flight deals from Oshkosh to Barcelona-El Prat

Keep the following information in mind while searching for Oshkosh to Barcelona-El Prat flight deals. Data was last updated December 18, 2025.

Round-trip from

$472
(United Airlines)

Popular in

July

Cheapest in

December

Average price

$548
From Oshkosh to Barcelona-El Prat
Search Deals
Highest demand for flights based on searches. 20% potential increase in price ($210 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($48 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Oshkosh 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 December 18, 2025.
Use the filters below to find and compare flights from Oshkosh to Barcelona-El Prat Airport that are best for you.

Fly from

Oshkosh

Fly to

Barcelona-El Prat

Route

Depart

Return

Price

AppletonBarcelona

ATW - BCN

ATWBCN

Appleton Intl

Fri 2/6

5:23 pm-5:35 pm

2 stops17h 12m

Barcelona-El Prat

Tue 2/10

1:35 pm-2:09 pm

2 stops31h 34m

$472

AppletonBarcelona

ATW - BCN

ATWBCN

Appleton Intl

Sun 5/17

5:35 pm-1:15 pm

1 stop12h 40m

Barcelona-El Prat

Wed 6/3

3:15 pm-8:58 pm

1 stop12h 43m

$761

AppletonBarcelona

ATW - BCN

ATWBCN

Appleton Intl

Mon 5/18

1:10 pm-3:30 pm

2 stops19h 20m

Barcelona-El Prat

Tue 6/2

3:15 pm-8:58 pm

1 stop12h 43m

$779

AppletonBarcelona

ATW - BCN

ATWBCN

Appleton Intl

Sun 5/17

5:35 pm-1:15 pm

1 stop12h 40m

Barcelona-El Prat

Wed 6/3

1:15 pm-3:10 pm

2 stops32h 55m

$791

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/15

Best time to book a flight from Oshkosh to Barcelona-El Prat

Have a flexible travel schedule? Discover the best time to fly to Barcelona-El Prat from Oshkosh with our price prediction graph.
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 Oshkosh to Barcelona-El Prat Airport

What is the cheapest month to book a flight from Oshkosh to Barcelona-El Prat Airport?

Currently, December is the cheapest month in which you can book a flight from Oshkosh to Barcelona-El Prat Airport (average of $497). Flying from Oshkosh to Barcelona-El Prat Airport in June is currently the most expensive (average of $1,361). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from OS9 to BCN?

Find hourly flight availability from Oshkosh to Barcelona-El Prat. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

When flying from Oshkosh to Barcelona-El Prat Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 53% versus a flight in the afternoon.

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 December 18, 2025.
Peruse reviews from past customers who have flown with United Airlines and American Airlines from Oshkosh to Barcelona-El Prat Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,091 reviews

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Crew

8.1

Overall

7.4

Food

6.6

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability
United Airlines
7.4
Good
9,091 reviews
United Airlines
7.4
Good
9,091 reviews

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Crew

8.1

Overall

7.4

Food

6.6

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability
American Airlines
7.2
Good
11,054 reviews
United Airlines
7.4
Good
9,091 reviews

Comfort

7.3

Entertainment

7.1

Boarding

7.7

Crew

8.1

Overall

7.4

Food

6.6

Reviews

1 / 20
4.0
Okay

Kevin,Dec 2025

BOS - EWR

Seems like every United flight has a delay and it’s always someone else’s fault. Step up and take some accountability

Related info for your journey

Find useful and relevant information for your journey from Oshkosh 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.

  • How long is the flight from Oshkosh to Barcelona-El Prat Airport?

    Airlines like United Airlines and Lufthansa fly from Oshkosh to Barcelona-El Prat Airport in about 12h 40m. The time it takes to get you to your destination can typically vary by up to 4h 32m. There are 4346 mi between Oshkosh and Barcelona-El Prat Airport. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • Can I find deals for flights from Oshkosh to Barcelona-El Prat that include hotel bookings?

    Yes. In addition to deals on Oshkosh to Barcelona-El Prat flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Oshkosh to Barcelona-El Prat?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Oshkosh to Barcelona-El Prat.

  • Can I find deals for business class flights from Oshkosh to Barcelona-El Prat?

    Yes. Cheapflights offers flight deals from Oshkosh to Barcelona-El Prat by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Oshkosh to Barcelona-El Prat Airport?

    Currently, December is the cheapest month in which you can book a flight from Oshkosh to Barcelona-El Prat Airport (average of $497). Flying from Oshkosh to Barcelona-El Prat Airport in June is currently the most expensive (average of $1,361). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Barcelona-El Prat Airport?

Book flights to Barcelona-El Prat Airport if you plan to visit one of these locations
Calella
Roses
L'Hospitalet de Llobregat
Cadaques
El Prat de Llobregat
Badalona
Pineda de Mar

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Top 4 airlines flying from Oshkosh to Barcelona-El Prat

Discover the top 4 airlines that operate flights from Oshkosh 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$508Average$842FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$577Average$910FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$619Average$881FlexibilityNo cancel feeOn-time70%
DeltaCheapest$632Average$879FlexibilityNo cancel feeOn-timeN/A

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