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$497+ 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 9/27. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — BCN
Feb 20 — Feb 271
Fri 2/20
Fri 2/27
1 adult, Economy
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Cheap 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 January 21, 2026.

This American Airlines deal was found by Cheapflights users on 1/20. 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.
Sun 9/276:26 pm
ATW
-
BCN
2 stops16h 49m
American Airlines
Sun 10/47:00 am
BCN
-
ATW
2 stops17h 38m
American Airlines
Deal found 1/20$497
This United Airlines deal was found by Cheapflights users on 1/20. 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 4/242:54 pm
ATW
-
BCN
2 stops17h 01m
United Airlines
Fri 5/112:15 pm
BCN
-
ATW
2 stops30h 39m
United Airlines
Deal found 1/20$522
This United Airlines deal was found by Cheapflights users on 1/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/303:39 pm
ATW
-
BCN
2 stops15h 26m
United Airlines
Tue 2/31:35 pm
BCN
-
ATW
2 stops53h 25m
United Airlines
Deal found 1/19$547
This KAYAK deal was found by Cheapflights users on 1/20. 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 4/243:46 pm
ATW
-
BCN
2 stops16h 09m
Lufthansa
Fri 5/112:15 pm
BCN
-
ATW
2 stops17h 30m
Lufthansa
Deal found 1/20$565
This Cheapflightsfares deal was found by Cheapflights users on 1/20. 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 5/175:33 pm
ATW
-
BCN
2 stops17h 22m
Lufthansa
Wed 6/36:40 am
BCN
-
ATW
2 stops21h 18m
Lufthansa
Deal found 1/20$627
This United Airlines deal was found by Cheapflights users on 1/20. 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 5/1712:33 pm
ATW
-
BCN
1 stop17h 42m
United Airlines
Wed 6/312:15 pm
BCN
-
ATW
2 stops33h 55m
United Airlines
Deal found 1/20$628
This United Airlines deal was found by Cheapflights users on 1/21. 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 5/182:43 pm
ATW
-
BCN
1 stop15h 32m
United Airlines
Tue 6/26:40 am
BCN
-
ATW
2 stops19h 36m
United Airlines
Deal found 1/21$652
This United Airlines deal was found by Cheapflights users on 1/20. 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 8/312:43 pm
ATW
-
BCN
2 stops34h 17m
United Airlines
Sun 9/66:00 am
BCN
-
ATW
2 stops40h 10m
United Airlines
Deal found 1/20$670

Find flight deals from Oshkosh to Barcelona

Keep the following information in mind while searching for Oshkosh to Barcelona flight deals. Data was last updated January 21, 2026.

Round-trip from

$522
(United Airlines)

Popular in

June

Cheapest in

December

Average price

$834
From Oshkosh to Barcelona
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($212 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($65 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 January 21, 2026.
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 4/24

2:54 pm-2:55 pm

2 stops17h 01m

Barcelona-El Prat

Fri 5/1

12:15 pm-11:54 am

2 stops30h 39m

$522

AppletonBarcelona

ATW - BCN

ATWBCN

Appleton Intl

Sun 5/17

5:33 pm-5:55 pm

2 stops17h 22m

Barcelona-El Prat

Wed 6/3

6:40 am-8:58 pm

2 stops21h 18m

$627

AppletonBarcelona

ATW - BCN

ATWBCN

Appleton Intl

Sun 5/17

12:33 pm-1:15 pm

1 stop17h 42m

Barcelona-El Prat

Wed 6/3

12:15 pm-3:10 pm

2 stops33h 55m

$628

AppletonBarcelona

ATW - BCN

ATWBCN

Appleton Intl

Mon 5/18

2:43 pm-1:15 pm

1 stop15h 32m

Barcelona-El Prat

Tue 6/2

3:15 pm-8:58 pm

1 stop12h 43m

$648

AppletonBarcelona

ATW - BCN

ATWBCN

Appleton Intl

Fri 3/6

5:23 pm-2:15 pm

2 stops37h 52m

Barcelona-El Prat

Fri 3/13

1:50 pm-4:44 pm

2 stops32h 54m

$699

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

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, February is the cheapest month in which you can book a flight from Oshkosh to Barcelona (average of $488). Flying from Oshkosh to Barcelona in June is currently the most expensive (average of $1,229). 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.

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 January 21, 2026.
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
9,191 reviews

Crew

8.1

Food

6.6

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,191 reviews
United Airlines
7.4
Good
9,191 reviews

Crew

8.1

Food

6.6

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
American Airlines
7.2
Good
11,174 reviews
United Airlines
7.4
Good
9,191 reviews

Crew

8.1

Food

6.6

Entertainment

7.1

Boarding

7.7

Comfort

7.3

Overall

7.4

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 01m. Fly via United Airlines or Lufthansa 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, February is the cheapest month in which you can book a flight from Oshkosh to Barcelona (average of $488). Flying from Oshkosh to Barcelona in June is currently the most expensive (average of $1,229). 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

Browse thousands of different options on Cheapflights for your next trip

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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 January 21, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$457Average$827FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$484Average$804FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$508Average$838FlexibilityNo cancel feeOn-time69%
DeltaCheapest$632Average$879FlexibilityNo cancel feeOn-timeN/A

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