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 $375 on this airline. Additional options worth looking into are Delta and United Airlines, starting at $411 and $526 round-trip. 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 Luis Munoz Marin Intl Airport one-way?

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

What is the cheapest day to fly from Green Bay to San Juan Luis Munoz Marin Intl Airport?

Travelers seeking maximum savings on their Green Bay to San Juan Luis Munoz Marin Intl Airport flight should consider departing on Monday afternoons when fares are most often at their lowest. Friday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

What are the most popular airlines that fly from Green Bay to San Juan Luis Munoz Marin Intl Airport?

Before booking your flight from Green Bay to San Juan Luis Munoz Marin Intl Airport check out the most popular airlines for this route: American Airlines, Delta or United Airlines.

What is the cheapest day to fly round-trip from Green Bay to San Juan Luis Munoz Marin Intl Airport?

Users have found that flying from Green Bay to San Juan Luis Munoz Marin Intl Airport on a Thursday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

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

Due to multiple factors, expect to potentially pay more when booking in March. For low rates, September can be a great choice for travel to San Juan Luis Munoz Marin Intl Airport. Flights to San Juan Luis Munoz Marin Intl Airport from Green Bay in September are about $661 on average during September, but can be found for as low as $277.

What is the cheapest time of day to fly from GRB to SJU?

It’s typically best to fly out from Green Bay to San Juan Luis Munoz Marin Intl Airport at noon. Doing so could potentially save you 24% on the flight price compared to flying in the morning, which is usually more expensive.

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.

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.

$159+ Flights from Green Bay to San Juan Luis Munoz Marin Intl Airport

Q: How far in advance should I book a flight from Green Bay to San Juan Luis Munoz Marin Intl Airport?

Travelers have found it’s best to book a flight 23 days in advance to save up to 33% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 23 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Green Bay to San Juan Luis Munoz Marin Intl Airport 1-2 weeks in advance for as low as $338, or $471 for flights within the next 24 hours.

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Find cheap flights from Green Bay to Luis Munoz Marin Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Green Bay Austin-Straubel to San Juan Luis Munoz Marin Intl 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 Luis Munoz Marin Intl

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 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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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 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 June 12, 2025.

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

Wed 8/137:02 amGRB - SJU

2 stops8h 34mDelta

Sat 8/167:30 amSJU - GRB

2 stops15h 31mDelta

Deal found 6/10

$411

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

Fri 8/87:52 pmGRB - SJU

2 stops17h 26mFrontier

Thu 8/1412:59 amSJU - GRB

2 stops18h 56mFrontier

Deal found 6/10

$613

Best flights from Green Bay to Luis Munoz Marin Intl
Discover carefully curated flight deals from Green Bay to Luis Munoz Marin Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 12, 2025.

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

Wed 8/137:02 amGRB - SJU

2 stops8h 34mDelta

Sat 8/167:30 amSJU - GRB

2 stops15h 31mDelta

Deal found 6/10

$411

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

Fri 8/87:52 pmGRB - SJU

2 stops17h 26mFrontier

Thu 8/1412:59 amSJU - GRB

2 stops18h 56mFrontier

Deal found 6/10

$613

Last-minute flights from Green Bay to Luis Munoz Marin Intl
Discover last-minute flight deals from Green Bay to Luis Munoz Marin Intl. Data last updated June 12, 2025 and is based on user searches.

Wed 6/256:00 amGRB - SJU

2 stops17h 08mAmerican Airlines

Sun 6/298:00 amSJU - GRB

2 stops16h 26mAmerican Airlines

Deal found 6/10

$689

Wed 6/251:10 pmGRB - SJU

1 stop9h 44mUnited Airlines

Sat 6/281:05 amSJU - GRB

2 stops10h 06mUnited Airlines

Deal found 6/10

$697

One-way flights from Green Bay to Luis Munoz Marin Intl
Search for one-way flight options from Green Bay to Luis Munoz Marin Intl. Find affordable one-way fares based on user searches. Data last updated June 12, 2025.

Fri 10/34:42 pmGRB - SJU

2 stops22h 10mAmerican Airlines

Deal found 6/10

$159

Wed 8/137:02 amGRB - SJU

2 stops8h 34mDelta

Deal found 6/10

$230

Sat 7/128:00 amGRB - SJU

2 stops15h 02mUnited Airlines

Deal found 6/11

$268

Cheapflights Fare Finder

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

Fly to

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 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?

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.

Rainfall in Luis Munoz Marin Intl by month

In terms of precipitation, rainfall in San Juan Luis Munoz Marin Intl Airport 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 Luis Munoz Marin Intl Airport when rainfall is around 2.2 in.

Temperature in Luis Munoz Marin Intl by month

If weather is an important factor for your trip to San Juan Luis Munoz Marin Intl Airport, 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 Luis Munoz Marin Intl

Delta

8.0

Very good

7,946 reviews

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

7,946 reviews

Delta

8.0

Very good

7,946 reviews

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

7,946 reviews

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

7,946 reviews

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

6.0

Okay

3,295 reviews

Delta

8.0

Very good

7,946 reviews

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

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.
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 $375 on this airline. Additional options worth looking into are Delta and United Airlines, starting at $411 and $526 round-trip. 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 Luis Munoz Marin Intl Airport one-way?
The cheapest airlines for a one-way flight from Green Bay to San Juan Luis Munoz Marin Intl Airport are American Airlines ($159), Delta ($230), and United Airlines ($268).
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

Dorado

Fajardo

Luquillo

Rio Grande

Humacao

Bayamón

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

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$275	Average$704	FlexibilityNo cancel fee	On-time69%
Delta	Cheapest$284	Average$572	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$285	Average$520	FlexibilityNo cancel fee	On-time71%

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$159+ 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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Green Bay to Luis Munoz Marin Intl with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Green Bay Austin-Straubel to San Juan Luis Munoz Marin Intl 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 Luis Munoz Marin Intl

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Green Bay to Luis Munoz Marin Intl

Cheapest flights from Green Bay to Luis Munoz Marin IntlExplore 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 June 12, 2025.

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 June 12, 2025.

Cheapflights Fare Finder

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.

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.

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 June 9, 2025.

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

Rainfall in Luis Munoz Marin Intl by month

Plan your trip to Luis Munoz Marin Intl by taking into account the average rainfall totals by month.

Temperature in Luis Munoz Marin Intl by month

Plan your trip to Luis Munoz Marin Intl by taking into account the average temperature totals by month.

Reviews of airlines servicing Luis Munoz Marin Intl

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?

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

What are the cheapest airlines to fly from Green Bay to San Juan Luis Munoz Marin Intl Airport one-way?

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

How can I 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?

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

Traveling to a place near Green Bay?

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Alternative routes for Green Bay to Luis Munoz Marin Intl

See prices for flight routes from nearby airports that may be better suited for you.

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

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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 June 12, 2025.