HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
San Juan

$57+ Cheap flights from Illinois 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 1/10. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SJU
Nov 9 — Nov 161
1 adult
Sat 11/9
Sat 11/16
We work with more than 300 partners to bring you better travel deals

...and more

Find cheap flights from Illinois to San Juan 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.

Find flight deals from Illinois to San Juan

Cheapest flights from Illinois to San Juan
Explore the most affordable flight options available from Illinois to San Juan. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 4, 2024.

This eDestinos deal was found by Cheapflights users on 11/3. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/39:10 pmORD - SJU
1 stop12h 51mSpirit Airlines
Wed 12/1110:34 amSJU - ORD
1 stop11h 41mSpirit Airlines
Deal found 11/3$169
This FlightHub deal was found by Cheapflights users on 11/3. 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.
Tue 12/109:58 amORD - SJU
1 stop8h 24mMultiple Airlines
Tue 12/243:54 amSJU - ORD
1 stop7h 30mMultiple Airlines
Deal found 11/3$170
This Mytrip deal was found by Cheapflights users on 11/3. 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.
Thu 11/212:31 pmMDW - SJU
1 stop7h 07mFrontier
Mon 11/253:59 amSJU - MDW
1 stop16h 38mFrontier
Deal found 11/3$173
This Trip.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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/166:48 pmORD - SJU
1 stop12h 37mFrontier
Sat 11/235:45 amSJU - ORD
1 stop16h 38mFrontier
Deal found 11/2$175
This eDestinos deal was found by Cheapflights users on 11/3. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/108:15 amMDW - SJU
2 stops31h 28mMultiple Airlines
Wed 12/185:08 pmSJU - MDW
1 stop15h 31mMultiple Airlines
Deal found 11/3$207
This Frontier deal was found by Cheapflights users on 11/3. 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.
Thu 12/125:02 pmSTL - SJU
1 stop7h 38mFrontier
Mon 12/163:03 pmSJU - STL
1 stop10h 30mFrontier
Deal found 11/3$228
This CheapOair deal was found by Cheapflights users on 11/4. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/125:02 pmSTL - SJU
1 stop7h 38mMultiple Airlines
Mon 12/168:31 pmSJU - STL
2 stops20h 50mMultiple Airlines
Deal found 11/4$263
This American Airlines deal was found by Cheapflights users on 11/3. 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 12/105:45 amSTL - SJU
1 stop6h 55mAmerican Airlines
Tue 12/175:30 amSJU - STL
2 stops9h 55mAmerican Airlines
Deal found 11/3$293
This FareScan deal was found by Cheapflights users on 11/3. 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 FareScan is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/54:26 pmSTL - SJU
2 stops31h 16mSpirit Airlines
Mon 12/99:13 pmSJU - STL
1 stop20h 08mSpirit Airlines
Deal found 11/3$315
This deal was found by Cheapflights users on 11/3. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/296:00 amSTL - SJU
1 stop9h 13mDelta
Mon 12/96:25 pmSJU - STL
1 stop7h 18mDelta
Deal found 11/3$334
This United Airlines deal was found by Cheapflights users on 11/3. 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 12/710:10 amSTL - SJU
2 stops12h 26mUnited Airlines
Fri 12/132:05 amSJU - STL
2 stops12h 14mUnited Airlines
Deal found 11/3$344
This American Airlines deal was found by Cheapflights users on 11/3. 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.
Sun 11/175:00 amCMI - SJU
2 stops13h 53mAmerican Airlines
Sat 2/16:15 amSJU - CMI
2 stops17h 16mAmerican Airlines
Deal found 11/3$366

Find flights from Illinois to San Juan within your budget

Customize your flight search to find flights from Illinois 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 2,455,398 searches. Data last updated November 4, 2024.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Wed 1/29

5:05 pm-9:52 am

1 stop14h 47m

$69

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Mon 12/9

1:00 pm-7:36 pm

Nonstop4h 36m

$85

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Tue 12/3

7:39 pm-6:42 pm

1 stop21h 03m

$99

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Sat 1/25

11:47 am-12:04 am

2 stops10h 17m

$127

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Sat 11/30

9:06 am-6:15 pm

1 stop7h 09m

$146

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Sun 1/5

9:53 am-9:12 pm

1 stop9h 19m

$147

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Tue 11/26

2:46 pm-12:33 am

1 stop7h 47m

$83

St. LouisSan Juan

STL - SJU

STLSJU

Lambert-St Louis

Sat 2/1

8:00 am-12:36 am

2 stops14h 36m

$172

ChicagoSan Juan

MDW - SJU

MDWSJU

Chicago Midway

Sun 1/5

5:52 pm-2:21 am

1 stop6h 29m

$83

ChicagoSan Juan

ORD - SJU

ORDSJU

Chicago O'Hare Intl

Tue 12/3

11:25 am-12:45 am

2 stops11h 20m

$187

Flights are sorted by cheapest first

Deals found on 11/4

Showing 1-10 of 50 results
1
2
3
...
5

Best time to book a flight from Illinois to San Juan

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

Travel insights for flights from Illinois to San Juan

Get recent, data-driven insights about flights from Illinois to San Juan including ideal travel times, pricing trends, and more.

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

Currently, September is the cheapest month in which you can book a flight from Illinois to San Juan (average of $254). Flying from Illinois to San Juan in March is currently the most expensive (average of $335). 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 IL to SJU?

Find hourly flight availability from Illinois to San Juan. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 4, 2024.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to San Juan as you normally would.

Weekly flight availability from Illinois to San Juan

Explore weekly flight availability from Illinois to San Juan. 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 November 4, 2024.

The most flights from USIL to PR1 are scheduled on a Monday (7 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (6 on average).

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 November 4, 2024.
See what other customers who have flown with American Airlines, United Airlines and Frontier from Illinois to San Juan have to say. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
5,089 reviews

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.3

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Southwest
8.1
Very good
5,089 reviews
Southwest
8.1
Very good
5,089 reviews

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.3

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Alaska Airlines
8.0
Very good
9,423 reviews
Southwest
8.1
Very good
5,089 reviews

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.3

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Delta
8.0
Very good
8,829 reviews
Southwest
8.1
Very good
5,089 reviews

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.3

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

JetBlue
7.5
Good
3,493 reviews
Southwest
8.1
Very good
5,089 reviews

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.3

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

United Airlines
7.4
Good
9,226 reviews
Southwest
8.1
Very good
5,089 reviews

Comfort

8.1

Food

7.2

Overall

8.1

Entertainment

7.7

Crew

8.7

Boarding

8.3

Reviews

1 / 10

Great service throughout our flight. Easy boarding with early bird check in

Related info for your journey

Find useful and relevant information for your journey from Illinois to San Juan. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • Can I find flights from Illinois to San Juan for under $200 on Cheapflights?

    Yes, there are multiple flights from Illinois to San Juan for under $200. The cheapest flight booked recently is on Frontier for just $139, but on average you can expect to pay $303.

  • Are there nonstop flights from Illinois to San Juan for under $200 on Cheapflights?

    Cheapflights has at least 5 direct flights from Illinois to San Juan under $200. A good price for a nonstop flight from Illinois to San Juan is less than $393.

  • Are there last-minute flights available from Illinois to San Juan for under $300?

    There are currently 16+ open flights from Illinois to San Juan within the next 7 days for less than $300.

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

    $57 is the cheapest one-way deal found within the past few days, from Frontier. You may also be able to find cheap deals on Spirit Airlines and American Airlines, with prices starting from $63 and $127, respectively.

  • What are the most popular routes from Illinois to San Juan?

    When deciding which route to take from Illinois to San Juan consider Chicago O'Hare Intl - San Juan Luis Munoz Marin Intl, Chicago Midway - San Juan Luis Munoz Marin Intl or Lambert-St Louis - San Juan Luis Munoz Marin Intl as they are the most popular.

  • What are the most reliable airlines from Illinois to San Juan?

    No one likes to see their flight delayed. When booking a flight from Illinois to San Juan consider choosing Spirit Airlines (88%), Air Canada (87%) or United Airlines (87%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Illinois to San Juan?

    The cheapest flight price from Illinois to San Juan is $83. On average you can expect to pay $628. The most popular route, (Chicago O'Hare Intl - San Juan Luis Munoz Marin Intl), can usually be booked for $126.

  • What does ORD to SJU mean?

    ORD stands for Chicago O'Hare Intl Airport, while SJU stands for San Juan Luis Munoz Marin Intl Airport. These codes are often called IATA codes, a set of identifiers established by IATA (International Air Transport Association) that is widely used by airlines and the aviation industry. This flight route has multiple associated airports, so we think it might be helpful to learn the name and codes of them as well. They are Ponce Mercedita Airport (PSE), San Juan Isla Grande Airport (SIG), Culebra Airport (CPX), Vieques Airport (VQS), Ceiba J. Aponte de la Torre Airport (NRR).

  • Can I find deals for flights from Illinois to San Juan that include extra baggage allowance?

    The amount of baggage you can bring on your Illinois to San Juan flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Illinois to San Juan with specific airlines?

    Yes, Cheapflights allows you to browse and filter Illinois to San Juan flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

  • Can I find deals for flights from Illinois to San Juan that include hotel bookings?

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

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

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

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

    Yes. Cheapflights offers flight deals from Illinois 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.

  • Can I find deals for flights from Illinois to San Juan that allow pets onboard?

    Many airlines flying from Illinois to San Juan offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Illinois to San Juan?

    Yes, you can often find last-minute deals on Illinois to San Juan flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Illinois to San Juan flight deals updated?

    The Illinois to San Juan flight deals you see on this page were last updated on 11/4.

  • What is the cheapest month to book a flight from Illinois to San Juan?

    Currently, September is the cheapest month in which you can book a flight from Illinois to San Juan (average of $254). Flying from Illinois to San Juan in March is currently the most expensive (average of $335). 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

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.

Alternative routes for Illinois to San Juan

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Luis Munoz Marin Intl flights
Newark to Luis Munoz Marin Intl flights
Boston to Luis Munoz Marin Intl flights
Orlando to Luis Munoz Marin Intl flights
Dulles Intl to Luis Munoz Marin Intl flights
Philadelphia to Luis Munoz Marin Intl flights
O'Hare Intl to Luis Munoz Marin Intl flights
LaGuardia to Luis Munoz Marin Intl flights
Dallas/Fort Worth to Luis Munoz Marin Intl flights
Baltimore to Luis Munoz Marin Intl flights
Reagan-National to Luis Munoz Marin Intl flights
Atlanta to Luis Munoz Marin Intl flights
Hartford to Luis Munoz Marin Intl flights
Tampa to Luis Munoz Marin Intl flights
Miami to Luis Munoz Marin Intl flights
Fort Lauderdale to Luis Munoz Marin Intl flights
Raleigh to Luis Munoz Marin Intl flights
Minneapolis to Luis Munoz Marin Intl flights
Hobby to Luis Munoz Marin Intl flights
Midway to Luis Munoz Marin Intl flights
Detroit to Luis Munoz Marin Intl flights
George Bush Intcntl to Luis Munoz Marin Intl flights
Denver to Luis Munoz Marin Intl flights
John F Kennedy Intl to Aguadilla flights
Cleveland to Luis Munoz Marin Intl flights
Charlotte to Luis Munoz Marin Intl flights
Seattle to Luis Munoz Marin Intl flights
Los Angeles to Luis Munoz Marin Intl flights
San Francisco to Luis Munoz Marin Intl flights
Providence to Luis Munoz Marin Intl flights
Atlantic City to Luis Munoz Marin Intl flights
Orlando to Aguadilla flights
Austin to Luis Munoz Marin Intl flights
Love Field to Luis Munoz Marin Intl flights
Cincinnati to Luis Munoz Marin Intl flights
Trenton to Luis Munoz Marin Intl flights
Orlando to Ponce flights
Pittsburgh to Luis Munoz Marin Intl flights
Sky Harbor Intl to Luis Munoz Marin Intl flights
Syracuse to Luis Munoz Marin Intl flights
White Plains to Luis Munoz Marin Intl flights
Jacksonville to Luis Munoz Marin Intl flights
San Antonio to Luis Munoz Marin Intl flights
St. Louis to Luis Munoz Marin Intl flights
Nashville to Luis Munoz Marin Intl flights
Richmond to Luis Munoz Marin Intl flights
Milwaukee to Luis Munoz Marin Intl flights
Grand Rapids to Luis Munoz Marin Intl flights
Norfolk to Luis Munoz Marin Intl flights
Columbus to Luis Munoz Marin Intl flights

Top 7 airlines flying from Illinois to San Juan

Discover the top 7 airlines that operate flights from Illinois 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 2,455,398 searches. Data last updated November 4, 2024.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$119Average$281FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$159Average$274FlexibilityNo cancel feeOn-time65%
JetBlueCheapest$173Average$408FlexibilityNo cancel feeOn-time62%
DeltaCheapest$204Average$557FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$267Average$409FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$268Average$539FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$284Average$627FlexibilityNo cancel feeOn-time71%
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.
View all available airlines