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Luis Munoz Marin Intl

$118+ Cheap flights from Green Bay (GRB) to Luis Munoz Marin Intl (SJU)

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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — SJU
Nov 27 — Dec 41
Thu 11/27
Thu 12/4
1 adult, Economy
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Cheapflights Tip: The best prices from Green Bay Austin-Straubel to San Juan Luis Munoz Marin Intl are usually found in September or July, booked 23 days in advance, depart on a Monday or Tuesday and return on a Monday

Cheap flight deals from Green Bay to Luis Munoz Marin Intl

Discover tips and strategies to find the most affordable flight options for your journey from Green Bay (GRB) to Luis Munoz Marin Intl (SJU). 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 October 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$268
(American Airlines)

One-way from

$118
(United Airlines)

Popular in

December

Cheapest in

September

Average price

$455
Provider with most accurate pricing for Green Bay Austin-Straubel-San Juan Luis Munoz Marin Intl flight deals.
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Provider most trusted by Cheapflights users for Green Bay Austin-Straubel-San Juan Luis Munoz Marin Intl flights.
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From Green Bay Austin-Straubel to San Juan Luis Munoz Marin Intl
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One-way flight from Green Bay Austin-Straubel to San Juan Luis Munoz Marin Intl
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Highest demand for flights based on searches. 12% potential increase in price ($80 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Green Bay to Luis Munoz Marin Intl

Cheapest flights from Green Bay to Luis Munoz Marin Intl
Explore the most affordable flight options available from Green Bay to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 28, 2025.

This Delta deal was found by Cheapflights users on 10/26. 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.
Mon 11/105:19 amGRB - SJU
1 stop10h 07mDelta
Tue 11/187:15 amSJU - GRB
2 stops10h 55mDelta
Deal found 10/26$394
This Delta deal was found by Cheapflights users on 10/26. 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.
Mon 11/105:19 amGRB - SJU
1 stop10h 07mDelta
Sat 11/157:15 amSJU - GRB
2 stops10h 53mDelta
Deal found 10/26$399
This United Airlines deal was found by Cheapflights users on 10/26. 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 11/1010:46 amGRB - SJU
2 stops11h 50mUnited Airlines
Wed 11/198:10 amSJU - GRB
1 stop9h 00mUnited Airlines
Deal found 10/26$407
This United Airlines deal was found by Cheapflights users on 10/26. 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 11/106:15 amGRB - SJU
1 stop7h 25mUnited Airlines
Mon 11/172:05 amSJU - GRB
2 stops12h 28mUnited Airlines
Deal found 10/26$484
This United Airlines deal was found by Cheapflights users on 10/26. 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 11/1010:46 amGRB - SJU
1 stop8h 14mUnited Airlines
Fri 11/142:05 amSJU - GRB
2 stops12h 28mUnited Airlines
Deal found 10/26$489
This American Airlines deal was found by Cheapflights users on 10/26. 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 11/107:17 amGRB - SJU
2 stops14h 41mAmerican Airlines
Mon 11/173:43 pmSJU - GRB
1 stop9h 45mAmerican Airlines
Deal found 10/26$502
This American Airlines deal was found by Cheapflights users on 10/26. 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 11/109:45 amGRB - SJU
2 stops27h 21mAmerican Airlines
Wed 11/196:00 amSJU - GRB
2 stops9h 55mAmerican Airlines
Deal found 10/26$549
This American Airlines deal was found by Cheapflights users on 10/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/215:55 amGRB - SJU
1 stop6h 54mAmerican Airlines
Mon 11/246:00 amSJU - GRB
2 stops15h 22mAmerican Airlines
Deal found 10/27$705
This American Airlines deal was found by Cheapflights users on 10/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/271:55 pmGRB - SJU
1 stop13h 05mAmerican Airlines
Mon 1/197:12 pmSJU - GRB
2 stops17h 38mAmerican Airlines
Deal found 10/27$708

Cheapflights Fare Finder

 
Customize your flight search to find flights from Green Bay to Luis Munoz Marin Intl 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 28, 2025.
Use the filters below to find and compare flights from Green Bay to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Green Bay

Fly to

Luis Munoz Marin Intl

Route

Depart

Return

Price

Green BaySan Juan

GRB - SJU

GRBSJU

Green Bay Austin-Straubel

Tue 2/10

11:20 am-10:48 am

2 stops21h 28m

San Juan Luis Munoz Marin Intl

Tue 2/24

6:30 am-8:30 pm

1 stop16h 00m

$268

Green BaySan Juan

GRB - SJU

GRBSJU

Green Bay Austin-Straubel

Tue 2/10

6:31 am-9:26 pm

2 stops12h 55m

San Juan Luis Munoz Marin Intl

Tue 2/24

8:35 am-2:10 pm

1 stop7h 35m

$325

Green BaySan Juan

GRB - SJU

GRBSJU

Green Bay Austin-Straubel

Mon 4/20

6:40 pm-2:25 pm

2 stops18h 45m

San Juan Luis Munoz Marin Intl

Fri 4/24

5:40 am-11:06 pm

2 stops18h 26m

$350

Green BaySan Juan

GRB - SJU

GRBSJU

Green Bay Austin-Straubel

Sun 2/8

2:39 pm-6:11 am

2 stops13h 32m

San Juan Luis Munoz Marin Intl

Fri 2/13

8:35 am-4:53 pm

1 stop10h 18m

$402

Green BaySan Juan

GRB - SJU

GRBSJU

Green Bay Austin-Straubel

Tue 11/18

10:46 am-10:22 pm

2 stops9h 36m

$118

Green BaySan Juan

GRB - SJU

GRBSJU

Green Bay Austin-Straubel

Wed 12/31

5:21 pm-3:48 pm

2 stops20h 27m

$124

Green BaySan Juan

GRB - SJU

GRBSJU

Green Bay Austin-Straubel

Tue 11/18

6:00 am-11:52 pm

2 stops15h 52m

$151

Green BaySan Juan

GRB - SJU

GRBSJU

Green Bay Austin-Straubel

Sat 4/11

6:20 am-12:10 am

2 stops16h 50m

$154

Green BaySan Juan

GRB - SJU

GRBSJU

Green Bay Austin-Straubel

Sun 11/9

7:52 pm-1:43 pm

2 stops15h 51m

$210

Green BaySan Juan

GRB - SJU

GRBSJU

Green Bay Austin-Straubel

Mon 11/10

8:00 am-10:22 pm

2 stops12h 22m

$245

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 12 results
1
2

Compare providers for flights from Green Bay to Luis Munoz Marin Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Green Bay to Luis Munoz Marin Intl in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Green Bay-San Juan Luis Munoz Marin Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Green Bay-San Juan Luis Munoz Marin Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Green Bay-San Juan Luis Munoz Marin Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Green Bay-San Juan Luis Munoz Marin Intl Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Green Bay-San Juan Luis Munoz Marin Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Green Bay to Luis Munoz Marin Intl

Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl 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 San Juan Luis Munoz Marin Intl Airport

How far ahead should I book a flight from Green Bay to San Juan Luis Munoz Marin Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Green Bay to Luis Munoz Marin Intl. Price data was last updated on October 24, 2025.

The price you pay for your flight from Green Bay to San Juan Luis Munoz Marin Intl Airport may vary depending on when you book. For the best chance of a lower fare, look to book 22 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.

What is the cheapest month to book a flight from Green Bay to San Juan Luis Munoz Marin Intl Airport?

Currently, May is the cheapest month in which you can book a flight from Green Bay to San Juan Luis Munoz Marin Intl Airport (average of $267). Flying from Green Bay to San Juan Luis Munoz Marin Intl Airport in August is currently the most expensive (average of $595). 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 Luis Munoz Marin Intl

Get insights into the airlines that provide service to Luis Munoz Marin Intl. 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 Luis Munoz Marin Intl. Reviews last updated October 28, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines from Green Bay to San Juan Luis Munoz Marin Intl 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.
Delta
7.9
Good
7,994 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,994 reviews
Delta
7.9
Good
7,994 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
9,001 reviews
Delta
7.9
Good
7,994 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
American Airlines
7.2
Good
11,032 reviews
Delta
7.9
Good
7,994 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Overall

7.9

Food

7.3

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Related info for your journey

Find useful and relevant information for your journey from Green Bay to Luis Munoz Marin Intl. 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 San Juan Luis Munoz Marin Intl?

    Located just 5.9 mi from the city center, Green Bay Austin-Straubel is the airport most travelers will use when flying to San Juan Luis Munoz Marin Intl from Green Bay. Booking flights from Austin-Straubel (GRB) to San Juan Luis Munoz Marin Intl should be relatively easy as there are 0 daily outbound flights to San Juan Luis Munoz Marin Intl from 3 different airlines.

  • How long is the flight from Green Bay to San Juan Luis Munoz Marin Intl Airport?

    A quick flight from Green Bay to San Juan Luis Munoz Marin Intl Airport can take about 12h 55m. American Airlines provides one of the quickest options available for as low as $325. Airlines will cover a distance of 2205 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Green Bay to San Juan Luis Munoz Marin Intl Airport round-trip?

    Our cheapest airline available from Green Bay to San Juan Luis Munoz Marin Intl Airport is American Airlines. Our recent data shows that you can find tickets from as low as $274 on this airline. Additional options worth looking into are United Airlines and Delta, starting at $275 and $305 round-trip. American Airlines is currently priced 52% below the average price you’ll pay for this route.

  • Can I find deals for flights from Green Bay to Luis Munoz Marin Intl that include hotel bookings?

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

  • How can I find direct flights from Green Bay to Luis Munoz Marin Intl?

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

  • Can I find deals for business class flights from Green Bay to Luis Munoz Marin Intl?

    Yes. Cheapflights offers flight deals from Green Bay to Luis Munoz Marin Intl 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 Green Bay to San Juan Luis Munoz Marin Intl Airport?

    Currently, May is the cheapest month in which you can book a flight from Green Bay to San Juan Luis Munoz Marin Intl Airport (average of $267). Flying from Green Bay to San Juan Luis Munoz Marin Intl Airport in August is currently the most expensive (average of $595). 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 San Juan Luis Munoz Marin Intl Airport?

Book flights to San Juan Luis Munoz Marin Intl Airport if you plan to visit one of these locations
Dorado
Fajardo
Rio Grande
Luquillo
Humacao

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Top 3 airlines flying from Green Bay to Luis Munoz Marin Intl

Discover the top 3 airlines that operate flights from Green Bay to Luis Munoz Marin Intl. 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 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$274Average$522FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$275Average$538FlexibilityNo cancel feeOn-time69%
DeltaCheapest$305Average$608FlexibilityNo cancel feeOn-timeN/A

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