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San Juan

$159+ 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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
GRB — SJU
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 May, 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 June 12, 2025.

Round-trip from

$375
(American Airlines)

One-way from

$159
(American Airlines)

Popular in

March

Cheapest in

September

Average price

$747
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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High demand for flights, 1% potential price rise
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Cheapest flight prices on average. 4% potential price decrease ($27 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/11. 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.
Wed 9/174:35 pmGRB - SJU
2 stops24h 40mAmerican Airlines
Sun 9/213:50 pmSJU - GRB
2 stops18h 28mAmerican Airlines
Deal found 6/11$375
This Delta deal was found by Cheapflights users on 6/10. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/137:02 amGRB - SJU
2 stops8h 34mDelta
Sat 8/167:30 amSJU - GRB
2 stops15h 31mDelta
Deal found 6/10$411
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Sun 8/101:10 pmGRB - SJU
1 stop9h 44mUnited Airlines
Fri 8/157:45 amSJU - GRB
1 stop10h 03mUnited Airlines
Deal found 6/10$526
This Frontier deal was found by Cheapflights users on 6/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/87:52 pmGRB - SJU
2 stops17h 26mFrontier
Thu 8/1412:59 amSJU - GRB
2 stops18h 56mFrontier
Deal found 6/10$613

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 June 12, 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

Wed 9/17

4:35 pm-6:15 pm

2 stops24h 40m

San Juan Luis Munoz Marin Intl

Sun 9/21

3:50 pm-9:18 am

2 stops18h 28m

$375

Green BaySan Juan

GRB - SJU

GRBSJU

Green Bay Austin-Straubel

Wed 8/13

7:02 am-4:36 pm

2 stops8h 34m

San Juan Luis Munoz Marin Intl

Sat 8/16

7:30 am-10:01 pm

2 stops15h 31m

$411

Green BaySan Juan

GRB - SJU

GRBSJU

Green Bay Austin-Straubel

Sun 8/10

1:10 pm-11:54 pm

1 stop9h 44m

San Juan Luis Munoz Marin Intl

Fri 8/15

7:45 am-4:48 pm

1 stop10h 03m

$526

Green BaySan Juan

GRB - SJU

GRBSJU

Green Bay Austin-Straubel

Fri 8/8

7:52 pm-2:18 pm

2 stops17h 26m

San Juan Luis Munoz Marin Intl

Thu 8/14

12:59 am-6:55 pm

2 stops18h 56m

$613

Green BaySan Juan

GRB - SJU

GRBSJU

Green Bay Austin-Straubel

Fri 10/3

4:42 pm-3:52 pm

2 stops22h 10m

$159

Green BaySan Juan

GRB - SJU

GRBSJU

Green Bay Austin-Straubel

Wed 8/13

7:02 am-4:36 pm

2 stops8h 34m

$230

Green BaySan Juan

GRB - SJU

GRBSJU

Green Bay Austin-Straubel

Sat 7/12

8:00 am-12:02 am

2 stops15h 02m

$268

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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 June 9, 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, September is the cheapest month in which you can book a flight from Green Bay to San Juan (average of $254). Flying from Green Bay to San Juan 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.

Rainfall in San Juan by month

Plan your trip to San Juan by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in San Juan ranges from 2.2 - 6.1 inches per month. November is typically the wettest month, when rainfall can reach 6.1 in. February is typically the driest time to visit San Juan when rainfall is around 2.2 in.

Temperature in San Juan by month

Plan your trip to San Juan by taking into account the average temperature totals by month.

If weather is an important factor for your trip to San Juan, use this chart to help with planning. For those seeking warmer temperatures, June is the ideal time of year to visit, when temperatures reach an average of 82.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 77.0 F).

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 June 12, 2025.
Delta
8.0
Very good
7,950 reviews

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

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
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

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
8,790 reviews
Delta
8.0
Very good
7,950 reviews

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

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
7,950 reviews

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

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!
Frontier
5.9
Fair
3,295 reviews
Delta
8.0
Very good
7,950 reviews

Overall

8.0

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Crew

8.5

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 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.

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

    According to our current data, American Airlines ($375), Delta ($411), and United Airlines ($526) offers the cheapest pricing from Green Bay to San Juan. American Airlines is currently priced 43% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Green Bay to San Juan one-way?

    The cheapest airlines for a one-way flight from Green Bay to San Juan are American Airlines ($159), Delta ($230), and United Airlines ($268).

  • 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, September is the cheapest month in which you can book a flight from Green Bay to San Juan (average of $254). Flying from Green Bay to San Juan 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

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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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$275Average$704FlexibilityNo cancel feeOn-time69%
DeltaCheapest$284Average$572FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$285Average$520FlexibilityNo cancel feeOn-time71%

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