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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
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
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 September 11, 2025.

Round-trip from

$235
(American Airlines)

One-way from

$200
(Delta)

Popular in

December

Cheapest in

September

Average price

$391
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. 13% potential increase in price ($92 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($26 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 11, 2025.

This American Airlines deal was found by Cheapflights users on 9/10. 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.
Tue 10/218:08 pmGRB - SJU
2 stops18h 47mAmerican Airlines
Tue 10/2811:56 amSJU - GRB
2 stops22h 18mAmerican Airlines
Deal found 9/10$235
This American Airlines deal was found by Cheapflights users on 9/10. 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 11/12:25 pmGRB - SJU
1 stop8h 30mAmerican Airlines
Sat 11/156:25 amSJU - GRB
2 stops16h 21mAmerican Airlines
Deal found 9/10$275
This American Airlines deal was found by Cheapflights users on 9/9. 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 9/274:35 pmGRB - SJU
2 stops20h 40mAmerican Airlines
Sat 10/412:01 pmSJU - GRB
2 stops22h 17mAmerican Airlines
Deal found 9/9$317
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Tue 10/2110:40 amGRB - SJU
2 stops12h 17mUnited Airlines
Tue 10/287:10 amSJU - GRB
1 stop9h 00mUnited Airlines
Deal found 9/10$325
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Wed 10/226:15 amGRB - SJU
1 stop7h 29mUnited Airlines
Fri 10/241:05 amSJU - GRB
2 stops10h 00mUnited Airlines
Deal found 9/10$336
This United Airlines deal was found by Cheapflights users on 9/10. 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 11/110:46 amGRB - SJU
2 stops9h 36mUnited Airlines
Fri 11/142:05 amSJU - GRB
2 stops12h 28mUnited Airlines
Deal found 9/10$347
This Delta deal was found by Cheapflights users on 9/9. 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.
Sat 9/2711:07 amGRB - SJU
2 stops9h 53mDelta
Sat 10/42:15 pmSJU - GRB
1 stop9h 20mDelta
Deal found 9/9$388
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 12/117:17 amGRB - SJU
2 stops14h 36mAmerican Airlines
Thu 12/258:25 amSJU - GRB
2 stops17h 02mAmerican Airlines
Deal found 9/10$390
This American Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 9/256:26 pmGRB - SJU
2 stops20h 26mAmerican Airlines
Mon 9/294:43 pmSJU - GRB
2 stops17h 33mAmerican Airlines
Deal found 9/10$439

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 September 11, 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

Sat 11/1

5:17 pm-12:05 pm

2 stops17h 48m

San Juan Luis Munoz Marin Intl

Sat 11/15

6:25 am-8:46 pm

2 stops16h 21m

$235

Green BaySan Juan

GRB - SJU

GRBSJU

Green Bay Austin-Straubel

Tue 10/21

8:08 pm-3:55 pm

2 stops18h 47m

San Juan Luis Munoz Marin Intl

Tue 10/28

5:00 pm-9:14 am

2 stops17h 14m

$235

Green BaySan Juan

GRB - SJU

GRBSJU

Green Bay Austin-Straubel

Sat 9/27

4:35 pm-2:15 pm

2 stops20h 40m

San Juan Luis Munoz Marin Intl

Sat 10/4

12:01 pm-9:18 am

2 stops22h 17m

$317

Green BaySan Juan

GRB - SJU

GRBSJU

Green Bay Austin-Straubel

Tue 10/21

6:15 am-2:44 pm

1 stop7h 29m

San Juan Luis Munoz Marin Intl

Tue 10/28

7:10 am-3:10 pm

1 stop9h 00m

$325

Green BaySan Juan

GRB - SJU

GRBSJU

Green Bay Austin-Straubel

Wed 10/22

6:15 am-2:44 pm

1 stop7h 29m

San Juan Luis Munoz Marin Intl

Fri 10/24

1:05 am-10:05 am

2 stops10h 00m

$336

Green BaySan Juan

GRB - SJU

GRBSJU

Green Bay Austin-Straubel

Sat 11/1

10:46 am-8:00 pm

1 stop8h 14m

San Juan Luis Munoz Marin Intl

Fri 11/14

2:05 am-3:10 pm

2 stops15h 05m

$348

Green BaySan Juan

GRB - SJU

GRBSJU

Green Bay Austin-Straubel

Sat 9/27

11:07 am-10:00 pm

2 stops9h 53m

San Juan Luis Munoz Marin Intl

Sat 10/4

2:15 pm-10:35 pm

1 stop9h 20m

$388

Green BaySan Juan

GRB - SJU

GRBSJU

Green Bay Austin-Straubel

Thu 10/9

6:00 am-11:59 pm

2 stops16h 59m

San Juan Luis Munoz Marin Intl

Tue 10/14

1:35 pm-9:14 am

2 stops20h 39m

$465

Green BaySan Juan

GRB - SJU

GRBSJU

Green Bay Austin-Straubel

Tue 11/18

11:10 am-11:13 pm

2 stops10h 03m

$118

Green BaySan Juan

GRB - SJU

GRBSJU

Green Bay Austin-Straubel

Thu 10/9

9:44 am-11:59 pm

2 stops13h 15m

$303

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 11 results
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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 August 29, 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, September is the cheapest month in which you can book a flight from Green Bay to San Juan Luis Munoz Marin Intl Airport (average of $254). Flying from Green Bay to San Juan Luis Munoz Marin Intl Airport in June is currently the most expensive (average of $339). 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.

How much does it cost to fly round-trip from Green Bay to San Juan Luis Munoz Marin Intl Airport?

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 September 11, 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
8.0
Very good
7,960 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,960 reviews

Crew

8.5

Boarding

8.2

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 7h 29m. 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 $284 round-trip. American Airlines is currently priced 54% 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, September is the cheapest month in which you can book a flight from Green Bay to San Juan Luis Munoz Marin Intl Airport (average of $254). Flying from Green Bay to San Juan Luis Munoz Marin Intl Airport in June is currently the most expensive (average of $339). 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

Browse thousands of different options on Cheapflights for your next trip

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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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$274Average$520FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$275Average$683FlexibilityNo cancel feeOn-time69%
DeltaCheapest$284Average$561FlexibilityNo cancel feeOn-timeN/A

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