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$242+ Cheap flights from Green Bay (GRB) 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 5/3. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — BCN
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Green Bay to Barcelona

Cheapest flights from Green Bay to Barcelona
Explore the most affordable flight options available from Green Bay to Barcelona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This United Airlines deal was found by Cheapflights users on 1/28. 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 3/51:00 pm
GRB
-
BCN
2 stops21h 45m
United Airlines
Mon 3/91:45 pm
BCN
-
GRB
2 stops26h 14m
United Airlines
Deal found 1/28$511
This United Airlines deal was found by Cheapflights users on 1/27. 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 8/15:18 pm
GRB
-
BCN
2 stops31h 42m
United Airlines
Mon 8/1011:15 am
BCN
-
GRB
2 stops30h 15m
United Airlines
Deal found 1/27$807
This United Airlines deal was found by Cheapflights users on 1/27. 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 7/301:10 pm
GRB
-
BCN
1 stop17h 05m
United Airlines
Mon 8/1011:15 am
BCN
-
GRB
2 stops30h 15m
United Airlines
Deal found 1/27$848
This United Airlines deal was found by Cheapflights users on 1/27. 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 7/315:18 pm
GRB
-
BCN
2 stops31h 42m
United Airlines
Mon 8/1011:15 am
BCN
-
GRB
2 stops30h 15m
United Airlines
Deal found 1/27$857
This oojo deal was found by Cheapflights users on 1/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/316:49 pm
GRB
-
BCN
1 stop32h 46m
British Airways
Mon 8/108:35 pm
BCN
-
GRB
2 stops33h 53m
British Airways
Deal found 1/28$921
This KLM deal was found by Cheapflights users on 1/27. 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.
Thu 7/305:30 am
GRB
-
BCN
1 stop24h 20m
KLM
Mon 8/1011:35 am
BCN
-
GRB
1 stop17h 23m
KLM
Deal found 1/27$1,046
This Delta deal was found by Cheapflights users on 1/27. 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 7/3010:50 am
GRB
-
BCN
2 stops14h 55m
Delta
Mon 8/106:10 am
BCN
-
GRB
2 stops17h 23m
Delta
Deal found 1/27$1,055

Find flight deals from Green Bay to Barcelona

Discover tips and strategies to find the most affordable flight options for your journey from Green Bay (GRB) 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 January 29, 2026.

Round-trip from

$511
(United Airlines)

One-way from

$242
(oojo)

Popular in

May

Cheapest in

October

Average price

$1,301
From Green Bay Austin-Straubel to Barcelona
Search Deals
One-way flight from Green Bay Austin-Straubel to Barcelona
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($192 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($48 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 Green Bay 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 29, 2026.
Use the filters below to find and compare flights from Green Bay to Barcelona that are best for you.

Fly from

Green Bay

Fly to

Barcelona

Route

Depart

Return

Price

Green BayBarcelona

GRB - BCN

GRBBCN

Green Bay Austin-Straubel

Thu 3/5

1:00 pm-5:45 pm

2 stops21h 45m

Barcelona-El Prat

Mon 3/9

1:45 pm-9:59 am

2 stops26h 14m

$511

Green BayBarcelona

GRB - BCN

GRBBCN

Green Bay Austin-Straubel

Sat 3/14

5:28 pm-1:10 pm

2 stops13h 42m

Barcelona-El Prat

Sat 3/21

6:50 am-4:52 pm

2 stops16h 02m

$1,559

Green BayBarcelona

GRB - BCN

GRBBCN

Green Bay Austin-Straubel

Fri 2/20

3:44 pm-2:15 pm

2 stops15h 31m

Barcelona-El Prat

Sat 2/28

11:00 am-9:30 pm

2 stops17h 30m

$4,940

Green BayBarcelona

GRB - BCN

GRBBCN

Green Bay Austin-Straubel

Fri 2/20

11:13 am-2:00 pm

2 stops19h 47m

Barcelona-El Prat

Sat 2/28

10:55 am-10:24 pm

1 stop18h 29m

$7,234

Green BayBarcelona

GRB - BCN

GRBBCN

Green Bay Austin-Straubel

Fri 2/20

10:02 am-12:40 pm

2 stops19h 38m

Barcelona-El Prat

Sat 2/28

9:15 pm-6:01 pm

3 stops27h 46m

$13,239

Green BayBarcelona

GRB - BCN

GRBBCN

Green Bay Austin-Straubel

Fri 2/27

6:32 pm-4:30 pm

2 stops14h 58m

Barcelona-El Prat

Tue 3/10

6:20 am-4:52 pm

2 stops16h 32m

$18,298

Green BayBarcelona

GRB - BCN

GRBBCN

Green Bay Austin-Straubel

Sun 5/3

10:40 am-1:15 pm

1 stop19h 35m

$250

Green BayBarcelona

GRB - BCN

GRBBCN

Green Bay Austin-Straubel

Wed 4/8

8:00 am-9:00 am

2 stops18h 00m

$399

Green BayBarcelona

GRB - BCN

GRBBCN

Green Bay Austin-Straubel

Wed 4/8

6:00 am-10:35 am

1 stop21h 35m

$417

Green BayBarcelona

GRB - BCN

GRBBCN

Green Bay Austin-Straubel

Sun 5/3

11:09 am-10:20 am

3 stops16h 11m

$1,339

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 13 results
1
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Best time to book a flight from Green Bay to Barcelona

Have a flexible travel schedule? Discover the best time to fly to Barcelona from Green Bay 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 Green Bay to Barcelona
No data available for this route at this time. Please check back soon.

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 29, 2026.
Read reviews from past customers who have flown United Airlines from Green Bay to Barcelona. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,215 reviews

Boarding

7.7

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

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
9,215 reviews
United Airlines
7.4
Good
9,215 reviews

Boarding

7.7

Food

6.6

Overall

7.4

Crew

8.1

Entertainment

7.1

Comfort

7.3

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 Green Bay to Barcelona. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Green Bay to Barcelona?

    Most people fly from Green Bay Austin-Straubel (GRB) if they book a flight from Green Bay to Barcelona. On average, Austin-Straubel has 0 outbound flights to Barcelona per day from 1 airline. Green Bay Austin-Straubel is conveniently located just 5.9 mi from Green Bay’s city center.

  • How long is the flight from Green Bay to Barcelona?

    There are many flights that can get you from Green Bay to Barcelona in 13h 42m. Fly via United Airlines or Lufthansa to get the fastest option. There are 4321 mi between Green Bay and Barcelona. This flight may include one or multiple stops.

  • What is the cheapest airline to fly from Green Bay to Barcelona round-trip?

    Our cheapest airline available from Green Bay to Barcelona is United Airlines. Our recent data shows that you can find tickets from as low as $624 on this airline. This flight start at 41% lower than the current average price 3 months from now.

  • Can I find deals for flights from Green Bay to Barcelona that include hotel bookings?

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

  • How can I find direct flights from Green Bay to Barcelona?

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

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

    Yes. Cheapflights offers flight deals from Green Bay 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.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Green Bay to Barcelona

Discover the top airline that operate flights from Green Bay 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 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$624Average$811FlexibilityNo cancel feeOn-time69%

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