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$734+ Cheap flights from Oshkosh, WI 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 3/27. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — BCN
Nov 19 — Nov 261
Wed 11/19
Wed 11/26
1 adult, Economy
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Cheap flight deals from Oshkosh to Barcelona

Keep the following information in mind while searching for Oshkosh to Barcelona flight deals. Data was last updated October 20, 2025.

Round-trip from

$734
(United Airlines)

Popular in

June

Cheapest in

December

Average price

$924
From Oshkosh to Barcelona
Search Deals
Highest demand for flights based on searches. 33% potential increase in price ($471 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($60 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
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Find flight deals from Oshkosh to Barcelona

Cheapest flights from Oshkosh to Barcelona
Explore the most affordable flight options available from Oshkosh to Barcelona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 20, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 10/19. 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 11/912:38 pmATW - BCN
2 stops16h 27mLufthansa
Thu 11/206:50 amBCN - ATW
2 stops21h 43mLufthansa
Deal found 10/19$3,063
This United Airlines deal was found by Cheapflights users on 10/17. 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 11/96:30 amATW - BCN
2 stops18h 50mUnited Airlines
Thu 11/201:35 pmBCN - ATW
2 stops32h 32mUnited Airlines
Deal found 10/17$3,345
This Air France deal was found by Cheapflights users on 10/19. 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.
Sun 11/95:23 amATW - BCN
1 stop20h 17mMultiple Airlines
Thu 11/2012:15 pmBCN - ATW
2 stops15h 35mMultiple Airlines
Deal found 10/19$3,391

Cheapflights Fare Finder

 
Customize your flight search to find flights from Oshkosh 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 October 20, 2025.
Use the filters below to find and compare flights from Oshkosh to Barcelona that are best for you.

Fly from

Oshkosh

Fly to

Barcelona

Route

Depart

Return

Price

AppletonBarcelona

ATW - BCN

ATWBCN

Appleton Intl

Fri 3/27

2:43 pm-2:15 pm

2 stops17h 32m

Barcelona-El Prat

Tue 3/31

8:00 am-7:16 pm

2 stops18h 16m

$734

AppletonBarcelona

ATW - BCN

ATWBCN

Appleton Intl

Fri 3/27

4:51 pm-10:35 pm

2 stops23h 44m

Barcelona-El Prat

Tue 3/31

10:45 am-9:32 pm

1 stop17h 47m

$1,044

AppletonBarcelona

ATW - BCN

ATWBCN

Appleton Intl

Sun 11/9

12:38 pm-12:05 pm

2 stops16h 27m

Barcelona-El Prat

Thu 11/20

6:50 am-9:33 pm

2 stops21h 43m

$3,063

AppletonBarcelona

ATW - BCN

ATWBCN

Appleton Intl

Sun 11/9

6:30 am-8:20 am

2 stops18h 50m

Barcelona-El Prat

Thu 11/20

1:35 pm-3:07 pm

2 stops32h 32m

$3,345

AppletonBarcelona

ATW - BCN

ATWBCN

Appleton Intl

Sun 11/9

5:23 am-8:40 am

1 stop20h 17m

Barcelona-El Prat

Thu 11/20

12:15 pm-8:50 pm

2 stops15h 35m

$3,391

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/18

Best time to book a flight from Oshkosh to Barcelona

Have a flexible travel schedule? Discover the best time to fly to Barcelona 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

What is the cheapest month to book a flight from Oshkosh to Barcelona?

Currently, November is the cheapest month in which you can book a flight from Oshkosh to Barcelona (average of $510). Flying from Oshkosh to Barcelona in June is currently the most expensive (average of $1,192). 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. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 20, 2025.

When flying from Oshkosh to Barcelona, 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.

How much does it cost to fly round-trip from Oshkosh 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 October 20, 2025.
See what other customers who have flown with United Airlines and American Airlines from Oshkosh to Barcelona have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,991 reviews

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
United Airlines
7.4
Good
8,991 reviews
United Airlines
7.4
Good
8,991 reviews

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.
American Airlines
7.2
Good
11,024 reviews
United Airlines
7.4
Good
8,991 reviews

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Food

6.6

Overall

7.4

Reviews

1 / 20
4.0
Okay

Tim,Sep 2025

IAD - GSP

This was pretty bad. It’s chaos at the Dulles boarding gates for the small regional jets because they use one gate to board 3-4 flights at a time. So, it’s difficult knowing where and when to go. There is little space for any size of carrry-on, so most had to gate check their bags. However, the worst of it was that our single flight attendant fell asleep before we took off and the pilot couldn’t do so until she responded to his messages. My wife had to wake her up! So we were a little late leaving. Not to be thwarted, the flight attendant fell asleep right after take off and there was no sight of her during the flight. When the aircraft touched down, a tray of unsecured canned drinks came crashing onto the aisle up front. I can only assume someone didn’t do what they were supposed to. The pilot was great, but I’m sure he must not be happy with this crew member.

Related info for your journey

Find useful and relevant information for your journey from Oshkosh to Barcelona. 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?

    There are many flights that can get you from Oshkosh to Barcelona in 17h 32m. Fly via United Airlines or American Airlines to get the fastest option. The distance between Oshkosh and Barcelona is about 4346 mi. 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 that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Oshkosh to Barcelona 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?

    Currently, November is the cheapest month in which you can book a flight from Oshkosh to Barcelona (average of $510). Flying from Oshkosh to Barcelona in June is currently the most expensive (average of $1,192). 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

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Top 4 airlines flying from Oshkosh to Barcelona

Discover the top 4 airlines that operate flights from Oshkosh 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 October 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$582Average$864FlexibilityNo cancel feeOn-time69%
DeltaCheapest$598Average$874FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$609Average$1,047FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$619Average$908FlexibilityNo cancel feeOn-time70%

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