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San Juan

$118+ Cheap flights from Green Bay (GRB) to San Juan

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 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 San Juan

Discover tips and strategies to find the most affordable flight options for your journey from Green Bay (GRB) to San Juan (PR1). 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.

Round-trip from

$268
(American Airlines)

One-way from

$118
(United Airlines)

Popular in

December

Cheapest in

September

Average price

$455
From Green Bay Austin-Straubel to San Juan
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One-way flight from Green Bay Austin-Straubel to San Juan
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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 San Juan

Cheapest flights from Green Bay to San Juan
Explore the most affordable flight options available from Green Bay to San Juan. 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 San Juan 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 that are best for you.

Fly from

Green Bay

Fly to

San Juan

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

Best time to book a flight from Green Bay to San Juan

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

How far ahead should I book a flight from Green Bay to San Juan?

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

To ensure you get the cheapest price possible for a flight from Green Bay to San Juan, you should look to book at least 22 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Green Bay to San Juan?

Currently, May is the cheapest month in which you can book a flight from Green Bay to San Juan (average of $267). Flying from Green Bay to San Juan 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 San Juan

Get insights into the airlines that provide service to San Juan. 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 San Juan. Reviews last updated October 28, 2025.
Get a feel of what it's like to fly with Delta, United Airlines, and American Airlines from Green Bay to San Juan by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,994 reviews

Boarding

8.2

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.3

Entertainment

7.9

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

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.3

Entertainment

7.9

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

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.3

Entertainment

7.9

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

Crew

8.5

Overall

7.9

Comfort

7.9

Food

7.3

Entertainment

7.9

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 San Juan. 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?

    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 from Green Bay. Booking flights from Austin-Straubel (GRB) to San Juan should be relatively easy as there are 0 daily outbound flights to San Juan from 3 different airlines.

  • How long is the flight from Green Bay to San Juan?

    For as low as $325, American Airlines can have you in San Juan from Green Bay in 12h 55m. Airlines will cover a distance of 2205 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Green Bay to San Juan round-trip?

    According to our current data, American Airlines ($274), United Airlines ($275), and Delta ($305) offers the cheapest pricing from Green Bay to San Juan. 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 San Juan that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Green Bay to San Juan 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?

    Currently, May is the cheapest month in which you can book a flight from Green Bay to San Juan (average of $267). Flying from Green Bay to San Juan 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

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Top 3 airlines flying from Green Bay to San Juan

Discover the top 3 airlines that operate flights from Green Bay to San Juan. 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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