Luis Munoz Marin Intl

$113+ Cheap flights from Chicago (CHI) 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 7/22. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — SJU
Jun 17 — Jun 241
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Chicago 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 Chicago to San Juan Luis Munoz Marin Intl are usually found in September or August, booked 42 days in advance, depart on a Monday or Tuesday and return on a Friday

Cheap flight deals from Chicago to Luis Munoz Marin Intl

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) 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 June 12, 2025.

Round-trip from

$210
(FlightHub)

One-way from

$113
(SmartFares)

Popular in

December

Cheapest in

September

Average price

$417

Good round-trip deal

$298 or less

Good one-way deal

$150 or less
From Chicago (CHI) to San Juan Luis Munoz Marin Intl
One-way flight from Chicago (CHI) to San Juan Luis Munoz Marin Intl
Highest demand for flights based on searches. 12% potential increase in price ($54 potential increase over avg. RT price).
Cheapest flight prices on average. 4% potential price decrease ($18 potential savings vs. average RT price).
Average for round-trip flights in June 2025
Price to beat on a round-trip flight from Chicago (CHI) to San Juan Luis Munoz Marin Intl.
Price to beat on a one-way flight from Chicago (CHI) to San Juan Luis Munoz Marin Intl.

Find flight deals from Chicago to Luis Munoz Marin Intl

Cheapest flights from Chicago to Luis Munoz Marin Intl
Explore the most affordable flight options available from Chicago to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2025.

This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/187:45 amORD - SJU
1 stop7h 58mFrontier
Thu 8/213:21 pmSJU - ORD
1 stop9h 33mFrontier
Deal found 6/10$210
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/292:05 pmMDW - SJU
1 stop8h 49mFrontier
Fri 9/54:42 pmSJU - MDW
1 stop20h 14mFrontier
Deal found 6/10$212
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/810:43 amORD - SJU
1 stop12h 22mSpirit Airlines
Tue 7/154:43 pmSJU - ORD
1 stop15h 21mSpirit Airlines
Deal found 6/11$214
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/1212:20 pmORD - SJU
1 stop11h 07mMultiple Airlines
Tue 7/224:43 pmSJU - ORD
1 stop15h 21mMultiple Airlines
Deal found 6/11$220
This JetBlue 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/44:05 pmORD - SJU
1 stop7h 38mJetBlue
Tue 11/117:30 amSJU - ORD
1 stop9h 38mJetBlue
Deal found 6/10$297
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.
Tue 7/16:03 pmORD - SJU
Nonstop4h 51mUnited Airlines
Mon 7/71:10 amSJU - ORD
1 stop10h 43mUnited Airlines
Deal found 6/10$308
This American Airlines deal was found by Cheapflights users on 6/12. 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 11/122:59 pmORD - SJU
1 stop9h 11mAmerican Airlines
Mon 11/174:50 pmSJU - ORD
1 stop9h 27mAmerican Airlines
Deal found 6/12$331
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.
Tue 11/410:35 amMDW - SJU
1 stop10h 46mDelta
Fri 11/143:30 pmSJU - MDW
1 stop8h 14mDelta
Deal found 6/10$331
This Southwest deal was found by Cheapflights users on 6/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/102:55 pmMDW - SJU
1 stop7h 20mSouthwest
Tue 7/153:45 pmSJU - MDW
1 stop7h 35mSouthwest
Deal found 6/12$357

Cheapflights Fare Finder

Customize your flight search to find flights from Chicago 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 June 12, 2025.
Use the filters below to find and compare flights from Chicago to San Juan Luis Munoz Marin Intl Airport that are best for you.

Fly from

Chicago

Fly to

Luis Munoz Marin Intl

Route

Depart

Return

Price

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Mon 8/18

7:45 am-4:43 pm

1 stop7h 58m

San Juan Luis Munoz Marin Intl

Thu 8/21

3:21 pm-11:54 pm

1 stop9h 33m

$210

ChicagoSan Juan

MDW - SJU

MDWSJU

Chicago Midway

Fri 8/29

2:05 pm-11:54 pm

1 stop8h 49m

San Juan Luis Munoz Marin Intl

Fri 9/5

4:42 pm-11:56 am

1 stop20h 14m

$212

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Tue 7/8

10:43 am-12:05 am

1 stop12h 22m

San Juan Luis Munoz Marin Intl

Tue 7/15

4:43 pm-7:04 am

1 stop15h 21m

$214

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Sat 7/12

12:20 pm-12:27 am

1 stop11h 07m

San Juan Luis Munoz Marin Intl

Tue 7/22

4:43 pm-7:04 am

1 stop15h 21m

$220

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Tue 7/1

6:03 pm-11:54 pm

Nonstop4h 51m

San Juan Luis Munoz Marin Intl

Mon 7/7

1:10 am-10:53 am

1 stop10h 43m

$308

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Wed 8/20

6:00 am-2:57 pm

1 stop7h 57m

San Juan Luis Munoz Marin Intl

Sun 8/24

2:59 pm-9:58 pm

1 stop7h 59m

$319

ChicagoSan Juan

MDW - SJU

MDWSJU

Chicago Midway

Tue 11/4

10:35 am-11:21 pm

1 stop10h 46m

San Juan Luis Munoz Marin Intl

Wed 11/12

3:30 pm-9:44 pm

1 stop8h 14m

$331

ChicagoSan Juan

MDW - SJU

MDWSJU

Chicago Midway

Thu 7/10

2:55 pm-11:15 pm

1 stop7h 20m

San Juan Luis Munoz Marin Intl

Tue 7/15

3:45 pm-10:20 pm

1 stop7h 35m

$357

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Tue 7/22

5:05 am-3:30 pm

1 stop9h 25m

$113

ChicagoSan Juan

MDW - SJU

MDWSJU

Chicago Midway

Fri 10/17

6:15 am-2:15 pm

1 stop7h 00m

$114

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/11

Showing 1-10 of 19 results
1
2

The best insider tips for Chicago to San Juan Luis Munoz Marin Intl Airport flights

Snippets provided in this section are AI-generated based on a summarization of Cheapflights-commissioned articles. The articles are presented as-is, for general informational purposes only, and may not be up-to-date. The opinions contained in the articles are original to the author and reflect their authentic experience, which may vary significantly from the experience of others.
Cheapflights partnered with top experts to bring you the best recommendations for your Chicago to San Juan Luis Munoz Marin Intl Airport trip
Airlines
Spirit Airlines

Spirit's Big Front Seats offer 11 inches more legroom, ideal for medium-haul comfort.


Use Spirit's Bag-O-Tron tool to compare baggage fees and save money.

United Airlines

United's Economy Plus offers extra legroom, perfect for a more comfortable medium-haul journey.


United's MileagePlus allows pooling miles, useful for family travel.

Airports
ORD

For a smooth departure from ORD, consider taking the 'L' train to avoid traffic delays common around the airport.

Read more about ORDby Ramsey Qubein
SJU

At SJU, Uber is a convenient option for reaching the city center, avoiding the need for cash payments.

Read more about SJUby Brandon Schultz
Our travel experts
Daniel Scheffler

Daniel Scheffler

Expert on Spirit Airlines

Daniel Scheffler

Daniel Scheffler

Daniel Scheffler is a travel writer, podcaster, and producer. Born in Africa, bred in Europe and now living in America he has traveled to 140 countries (and all 50 U.S. states). Plus he has stayed at over 2500 hotels across the globe. His original shows Everywhere and Without Maps (available on Spotify) showcase his beliefs, travel is about humanity and sharing that beauty. And thus it reminds you that you shouldn’t believe everything you think.

Read more
Harriet Baskas

Harriet Baskas

Expert on United Airlines

Harriet Baskas

Harriet Baskas

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Read more
Ramsey Qubein

Ramsey Qubein

Expert on ORD

Ramsey Qubein

Ramsey Qubein

An avid traveler and aviation expert who has visited 173 countries, all 50 states and seven continents, Ramsey Qubein flies nearly 400,000 miles a year. As a North Carolina-based freelance journalist for publications including Conde Nast Traveler, Forbes, USA Today and Bloomberg among others, he explores the latest trends in aviation, hospitality, cruises and business.

Read more
Brandon Schultz

Brandon Schultz

Expert on SJU

Brandon Schultz

Brandon Schultz

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more

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

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

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

Use this chart to determine the optimal time to book a round-trip flight from Chicago to Luis Munoz Marin Intl. Price data was last updated on June 9, 2025.

Booking 42 days in advance of your planned departure date is, on average, the best time to get cheap flights from Chicago 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 Chicago to San Juan Luis Munoz Marin Intl Airport?

Currently, September is the cheapest month in which you can book a flight from Chicago to San Juan Luis Munoz Marin Intl Airport (average of $254). Flying from Chicago 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.

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

Find hourly flight availability from Chicago 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 June 12, 2025.

It’s typically best to fly out from Chicago to San Juan Luis Munoz Marin Intl Airport in the evening. Doing so could potentially save you 31% on the flight price compared to flying in the morning, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from Chicago to Luis Munoz Marin Intl. Price data was last updated on February 10, 2025.

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

Weekly flight availability from Chicago to San Juan Luis Munoz Marin Intl Airport

Explore weekly flight availability from Chicago to Luis Munoz Marin Intl. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated June 12, 2025.

The most flights from CHI to SJU are scheduled on a Monday (9 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (9 on average).

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.

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

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

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 June 12, 2025.
Read through reviews of airlines operating flights from Chicago to San Juan, such as Southwest, Delta and United Airlines. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Food

7.1

Boarding

8.2

Entertainment

7.6

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Food

7.1

Boarding

8.2

Entertainment

7.6

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.
8.0
Very good

Food

7.1

Boarding

8.2

Entertainment

7.6

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Food

7.1

Boarding

8.2

Entertainment

7.6

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Food

7.1

Boarding

8.2

Entertainment

7.6

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Food

7.1

Boarding

8.2

Entertainment

7.6

Overall

8.0

Comfort

8.0

Crew

8.6

Reviews

1 / 20
8.0
Excellent

John,May 2025

PVD - BNA

It’s southwest so no frills but clean, efficient and got me to my location.

Related info for your journey

Find useful and relevant information for your journey from Chicago 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 are the cheapest airlines flying from Chicago to San Juan Luis Munoz Marin Intl Airport round-trip?

    Our cheapest airline available from Chicago to San Juan Luis Munoz Marin Intl Airport is Frontier. Our recent data shows that you can find tickets from as low as $210 on this airline. Additional options worth looking into are Spirit Airlines and United Airlines, starting at $214 and $308 round-trip. Frontier is currently priced 44% below the average price you’ll pay for this route.

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

    The cheapest airline one-way is Spirit Airlines, with whom users have recently found tickets for as low as $113. However, be on the lookout for offers from Frontier and United Airlines, as they are both options that can get you from Chicago to San Juan Luis Munoz Marin Intl Airport for a low price.

  • What are the most reliable airlines from Chicago to San Juan Luis Munoz Marin Intl Airport?

    Consider American Airlines (85%), Air Canada (85%) or United Airlines (85%) when booking your flight. These represent the most reliable airlines when flying from Chicago to San Juan Luis Munoz Marin Intl Airport.

  • What are the cheapest flights from Chicago to San Juan Luis Munoz Marin Intl Airport?

    Looking for the cheapest flight from Chicago to San Juan Luis Munoz Marin Intl Airport? While on average our users pay $751, our data indicates the cheapest price to be $112. The most popular route (Chicago O'Hare Intl - San Juan Luis Munoz Marin Intl), is priced around $214.

  • Where are the most common layover locations when flying from Chicago to San Juan Luis Munoz Marin Intl Airport?

  • What are some popular things to do or see while on a layover in Orlando?

    The majority of Orlando visitors spend their time at Walt Disney World Resort, Universal Orlando Resort, and International Drive. Walt Disney World Resort, Universal Orlando Resort, and International Drive are located about 16.2 mi, 10.2 mi, and 9.9 mi, respectively from Orlando. Those on a layover in Orlando in need of a rental car can book one at Orlando for about $24.

  • Where are the least popular layover locations for Chicago to San Juan Luis Munoz Marin Intl Airport flights?

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Chicago to San Juan Luis Munoz Marin Intl Airport (average of $254). Flying from Chicago 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 Chicago?

Book flights to Chicago if you plan to visit one of these locations
Dorado
Fajardo
Luquillo
Rio Grande
Humacao
Bayamón

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 7 airlines flying from Chicago to Luis Munoz Marin Intl

Discover the top 7 airlines that operate flights from Chicago 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$106Average$253FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$140Average$292FlexibilityNo cancel feeOn-time65%
DeltaCheapest$216Average$411FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$271Average$483FlexibilityNo cancel feeOn-time69%
JetBlueCheapest$287Average$411FlexibilityNo cancel feeOn-time62%
American AirlinesCheapest$338Average$514FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$354Average$487FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.