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Luis Munoz Marin Intl

$181+ Cheap flights from Oshkosh, WI 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 1/3. Fares are subject to change and may not be available on all flights or dates of travel.
MKE — SJU
Dec 3 — Dec 101
Wed 12/3
Wed 12/10
1 adult, Economy
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Cheapflights Tip: The best prices from Oshkosh to San Juan Luis Munoz Marin Intl are usually found in November or April, booked 31 days in advance, depart on a Sunday or Tuesday and return on a Monday

Cheap flight deals from Oshkosh to Luis Munoz Marin Intl

Keep the following information in mind while searching for Oshkosh to Luis Munoz Marin Intl flight deals. Data was last updated November 3, 2025.

Round-trip from

$325
(United Airlines)

One-way from

$181
(American Airlines)

Popular in

March

Cheapest in

November

Average price

$496
From Oshkosh to San Juan Luis Munoz Marin Intl
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One-way flight from Oshkosh to San Juan Luis Munoz Marin Intl
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Highest demand for flights based on searches. 8% potential increase in price ($66 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($31 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Find flight deals from Oshkosh to Luis Munoz Marin Intl

Cheapest flights from Oshkosh to Luis Munoz Marin Intl
Explore the most affordable flight options available from Oshkosh to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 3, 2025.

This American Airlines deal was found by Cheapflights users on 11/2. 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 12/25:20 amATW - SJU
2 stops17h 24mAmerican Airlines
Tue 12/98:20 amSJU - ATW
1 stop17h 04mAmerican Airlines
Deal found 11/2$390
This Delta deal was found by Cheapflights users on 10/31. 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 11/15:41 amATW - SJU
1 stop9h 52mDelta
Thu 11/63:36 pmSJU - ATW
1 stop7h 59mDelta
Deal found 10/31$399
This American Airlines deal was found by Cheapflights users on 10/31. 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 11/37:42 pmATW - SJU
2 stops16h 01mAmerican Airlines
Tue 11/118:20 amSJU - ATW
1 stop17h 05mAmerican Airlines
Deal found 10/31$439
This United Airlines deal was found by Cheapflights users on 11/2. 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 12/26:30 amATW - SJU
1 stop7h 10mUnited Airlines
Mon 12/82:05 amSJU - ATW
2 stops11h 45mUnited Airlines
Deal found 11/2$455
This United Airlines deal was found by Cheapflights users on 10/30. 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 11/18:15 amATW - SJU
2 stops12h 07mUnited Airlines
Wed 11/52:05 amSJU - ATW
2 stops13h 52mUnited Airlines
Deal found 10/30$489
This Mytrip deal was found by Cheapflights users on 11/1. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/167:00 amATW - SJU
3 stops30h 13mMultiple Airlines
Thu 11/2011:55 amSJU - ATW
3 stops30h 44mMultiple Airlines
Deal found 11/1$543
This Kiwi.com deal was found by Cheapflights users on 11/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:35 amATW - SJU
1 stop26h 23mMultiple Airlines
Wed 1/77:01 pmSJU - ATW
2 stops29h 14mMultiple Airlines
Deal found 11/2$567

Cheapflights Fare Finder

 
Customize your flight search to find flights from Oshkosh 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 November 3, 2025.
Use the filters below to find and compare flights from Oshkosh to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Oshkosh

Fly to

Luis Munoz Marin Intl

Route

Depart

Return

Price

AppletonSan Juan

ATW - SJU

ATWSJU

Appleton Intl

Sun 3/22

6:35 am-2:40 pm

1 stop7h 05m

San Juan Luis Munoz Marin Intl

Thu 3/26

7:35 am-3:10 pm

1 stop8h 35m

$325

AppletonSan Juan

ATW - SJU

ATWSJU

Appleton Intl

Tue 2/3

12:35 pm-12:36 am

2 stops10h 01m

San Juan Luis Munoz Marin Intl

Fri 2/13

8:35 am-1:58 pm

1 stop7h 23m

$325

AppletonSan Juan

ATW - SJU

ATWSJU

Appleton Intl

Fri 3/20

6:35 am-2:40 pm

1 stop7h 05m

San Juan Luis Munoz Marin Intl

Thu 3/26

7:35 am-2:08 pm

1 stop7h 33m

$370

AppletonSan Juan

ATW - SJU

ATWSJU

Appleton Intl

Fri 3/20

6:35 am-2:40 pm

1 stop7h 05m

San Juan Luis Munoz Marin Intl

Sat 3/28

7:35 am-3:10 pm

1 stop8h 35m

$370

AppletonSan Juan

ATW - SJU

ATWSJU

Appleton Intl

Sun 11/16

6:30 am-9:26 pm

2 stops12h 56m

San Juan Luis Munoz Marin Intl

Wed 11/19

2:05 am-11:57 am

2 stops11h 52m

$399

AppletonSan Juan

ATW - SJU

ATWSJU

Appleton Intl

Sat 1/3

7:27 pm-5:00 am

1 stop7h 33m

$181

AppletonSan Juan

ATW - SJU

ATWSJU

Appleton Intl

Sat 12/20

6:15 am-6:11 am

2 stops21h 56m

$568

AppletonSan Juan

ATW - SJU

ATWSJU

Appleton Intl

Sat 12/20

9:51 am-5:00 am

1 stop17h 09m

$569

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/1

Best time to book a flight from Oshkosh to Luis Munoz Marin Intl

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

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

Use this chart to determine the optimal time to book a round-trip flight from Oshkosh to Luis Munoz Marin Intl. Price data was last updated on October 31, 2025.

Booking 31 days in advance of your planned departure date is, on average, the best time to get cheap flights from Oshkosh to San Juan Luis Munoz Marin Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, October is the cheapest month in which you can book a flight from Oshkosh to San Juan Luis Munoz Marin Intl Airport (average of $144). Flying from Oshkosh to San Juan Luis Munoz Marin Intl Airport in June is currently the most expensive (average of $379). 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.

What is the cheapest time of day to fly from OS9 to SJU?

Find hourly flight availability from Oshkosh to Luis Munoz Marin Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 3, 2025.

One of the essential ways to save on airfare from Oshkosh to San Juan Luis Munoz Marin Intl Airport is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 31% on airfare.

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

Use this chart to determine the cheapest time to fly round-trip from Oshkosh to Luis Munoz Marin Intl. Price data was last updated on December 16, 2024.

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

How much does it cost to fly round-trip from Oshkosh 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 November 3, 2025.
Read through reviews of airlines operating flights from Oshkosh to San Juan Luis Munoz Marin Intl Airport, such as Delta, United Airlines, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,001 reviews

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Lane,Nov 2025

MEM - ATL

The crew was very friendly, but they only came around and offered the better Delta Comfort snacks one time. I thought they would come around more frequently on a 5 hour flight. They did do two beverage services though, which was nice.
Delta
7.9
Good
8,001 reviews
Delta
7.9
Good
8,001 reviews

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Lane,Nov 2025

MEM - ATL

The crew was very friendly, but they only came around and offered the better Delta Comfort snacks one time. I thought they would come around more frequently on a 5 hour flight. They did do two beverage services though, which was nice.
United Airlines
7.4
Good
8,997 reviews
Delta
7.9
Good
8,001 reviews

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Lane,Nov 2025

MEM - ATL

The crew was very friendly, but they only came around and offered the better Delta Comfort snacks one time. I thought they would come around more frequently on a 5 hour flight. They did do two beverage services though, which was nice.
American Airlines
7.2
Good
11,034 reviews
Delta
7.9
Good
8,001 reviews

Entertainment

7.9

Boarding

8.2

Crew

8.5

Food

7.3

Comfort

7.9

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Lane,Nov 2025

MEM - ATL

The crew was very friendly, but they only came around and offered the better Delta Comfort snacks one time. I thought they would come around more frequently on a 5 hour flight. They did do two beverage services though, which was nice.

Related info for your journey

Find useful and relevant information for your journey from Oshkosh 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.

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

    Departing from Oshkosh to San Juan Luis Munoz Marin Intl Airport will take you 7h 05m. Airlines will cover a distance of 2207 mi.

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

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

  • How can I find direct flights from Oshkosh 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 Oshkosh to Luis Munoz Marin Intl.

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

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

    Currently, October is the cheapest month in which you can book a flight from Oshkosh to San Juan Luis Munoz Marin Intl Airport (average of $144). Flying from Oshkosh to San Juan Luis Munoz Marin Intl Airport in June is currently the most expensive (average of $379). 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 6 airlines flying from Oshkosh to Luis Munoz Marin Intl

Discover the top 6 airlines that operate flights from Oshkosh 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 November 3, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$129Average$243FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$202Average$533FlexibilityNo cancel feeOn-time69%
DeltaCheapest$215Average$528FlexibilityNo cancel feeOn-timeN/A
Spirit AirlinesCheapest$226Average$411FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$269Average$564FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$315Average$567FlexibilityNo cancel feeOn-time63%

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