Illinois

$93+ Cheap flights from Luis Munoz Marin Intl (SJU) to Illinois

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 10/10. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — ORD
Jun 19 — Jun 261
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Cheap flight deals from Luis Munoz Marin Intl to Illinois

Keep the following information in mind while searching for Luis Munoz Marin Intl to Illinois flight deals. Data was last updated June 14, 2025.

Round-trip from

$192
(Mytrip)

One-way from

$93
(Priceline)

Popular in

March

Cheapest in

January

Average price

$298

Good round-trip deal

$255 or less

Good one-way deal

$189 or less
From San Juan Luis Munoz Marin Intl to Illinois
One-way flight from San Juan Luis Munoz Marin Intl to Illinois
Highest demand for flights based on searches. 10% potential increase in price ($34 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
Average for round-trip flights in June 2025
Price to beat on a round-trip flight from San Juan Luis Munoz Marin Intl to Illinois.
Price to beat on a one-way flight from San Juan Luis Munoz Marin Intl to Illinois.

Find flight deals from Luis Munoz Marin Intl to Illinois

Cheapest flights from Luis Munoz Marin Intl to Illinois
Explore the most affordable flight options available from Luis Munoz Marin Intl to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 14, 2025.

This Mytrip deal was found by Cheapflights users on 6/14. 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.
Tue 7/154:43 pmSJU - ORD
1 stop15h 21mSpirit Airlines
Tue 7/225:05 amORD - SJU
1 stop9h 25mSpirit Airlines
Deal found 6/14$192
This Priceline 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/53:40 amSJU - MDW
1 stop9h 16mFrontier
Fri 9/128:34 amMDW - SJU
1 stop17h 00mFrontier
Deal found 6/12$194
This Priceline deal was found by Cheapflights users on 6/14. 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 7/113:13 pmSJU - ORD
1 stop10h 09mFrontier
Tue 7/1511:28 amORD - SJU
1 stop14h 11mFrontier
Deal found 6/14$194
This Priceline deal was found by Cheapflights users on 6/14. 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.
Tue 7/19:30 amSJU - STL
1 stop15h 23mFrontier
Sat 7/125:40 pmSTL - SJU
1 stop7h 59mFrontier
Deal found 6/14$203
This Priceline deal was found by Cheapflights users on 6/13. 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.
Tue 7/154:43 pmSJU - ORD
1 stop15h 21mMultiple Airlines
Tue 7/2211:28 amORD - SJU
1 stop14h 11mMultiple Airlines
Deal found 6/13$215
This Delta deal was found by Cheapflights users on 6/13. 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.
Thu 7/316:15 amSJU - STL
1 stop11h 03mDelta
Tue 8/127:00 amSTL - SJU
1 stop8h 36mDelta
Deal found 6/13$259
This FlightHub deal was found by Cheapflights users on 6/14. 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.
Sat 7/191:37 amSJU - STL
1 stop9h 15mSpirit Airlines
Sun 7/2710:47 amSTL - SJU
1 stop23h 45mSpirit Airlines
Deal found 6/14$264
This Priceline deal was found by Cheapflights users on 6/14. 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.
Wed 7/301:37 amSJU - STL
1 stop9h 15mMultiple Airlines
Sat 8/25:40 pmSTL - SJU
1 stop28h 46mMultiple Airlines
Deal found 6/14$266
This Southwest deal was found by Cheapflights users on 6/14. 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.
Fri 7/1111:25 amSJU - MDW
1 stop9h 20mSouthwest
Tue 7/1511:15 amMDW - SJU
1 stop9h 00mSouthwest
Deal found 6/14$327
This Delta deal was found by Cheapflights users on 6/13. 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.
Thu 9/1112:55 pmSJU - MDW
1 stop9h 49mDelta
Tue 9/166:00 amMDW - SJU
1 stop9h 08mDelta
Deal found 6/13$331
This American Airlines deal was found by Cheapflights users on 6/14. 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.
Fri 10/103:05 pmSJU - ORD
Nonstop5h 20mAmerican Airlines
Tue 10/148:45 pmORD - SJU
1 stop13h 05mAmerican Airlines
Deal found 6/14$362
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/710:14 pmSJU - MDW
2 stops16h 42mMultiple Airlines
Mon 8/111:11 pmMDW - SJU
2 stops25h 19mMultiple Airlines
Deal found 6/12$390

Cheapflights Fare Finder

Customize your flight search to find flights from Luis Munoz Marin Intl to Illinois 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 14, 2025.
Use the filters below to find and compare flights from San Juan Luis Munoz Marin Intl Airport to Illinois that are best for you.

Fly from

Luis Munoz Marin Intl

Fly to

Illinois

Route

Depart

Return

Price

San JuanChicago

SJU - ORD

SJUORD

San Juan Luis Munoz Marin Intl

Tue 7/15

4:43 pm-7:04 am

1 stop15h 21m

Chicago O'Hare Intl

Tue 7/22

5:05 am-3:30 pm

1 stop9h 25m

$192

San JuanChicago

SJU - MDW

SJUMDW

San Juan Luis Munoz Marin Intl

Fri 9/5

3:40 am-11:56 am

1 stop9h 16m

Chicago Midway

Fri 9/12

8:34 am-2:34 am

1 stop17h 00m

$194

San JuanChicago

SJU - ORD

SJUORD

San Juan Luis Munoz Marin Intl

Fri 7/11

3:13 pm-12:22 am

1 stop10h 09m

Chicago O'Hare Intl

Tue 7/15

11:28 am-2:39 am

1 stop14h 11m

$194

San JuanSt. Louis

SJU - STL

SJUSTL

San Juan Luis Munoz Marin Intl

Tue 7/1

9:30 am-11:53 pm

1 stop15h 23m

Lambert-St Louis

Sat 7/12

5:40 pm-2:39 am

1 stop7h 59m

$203

San JuanChicago

SJU - ORD

SJUORD

San Juan Luis Munoz Marin Intl

Tue 7/15

4:43 pm-7:04 am

1 stop15h 21m

Chicago O'Hare Intl

Tue 7/22

11:28 am-2:39 am

1 stop14h 11m

$215

San JuanSt. Louis

SJU - STL

SJUSTL

San Juan Luis Munoz Marin Intl

Thu 7/31

6:15 am-4:18 pm

1 stop11h 03m

Lambert-St Louis

Tue 8/12

7:00 am-4:36 pm

1 stop8h 36m

$259

San JuanSt. Louis

SJU - STL

SJUSTL

San Juan Luis Munoz Marin Intl

Sat 7/19

1:37 am-9:52 am

1 stop9h 15m

Lambert-St Louis

Sun 7/27

10:47 am-11:32 am

1 stop23h 45m

$264

San JuanSt. Louis

SJU - STL

SJUSTL

San Juan Luis Munoz Marin Intl

Wed 7/30

1:37 am-9:52 am

1 stop9h 15m

Lambert-St Louis

Sat 8/2

5:40 pm-11:26 pm

1 stop28h 46m

$266

San JuanChicago

SJU - MDW

SJUMDW

San Juan Luis Munoz Marin Intl

Fri 7/11

11:25 am-7:45 pm

1 stop9h 20m

Chicago Midway

Tue 7/15

11:15 am-9:15 pm

1 stop9h 00m

$327

San JuanChicago

SJU - MDW

SJUMDW

San Juan Luis Munoz Marin Intl

Thu 9/11

12:55 pm-9:44 pm

1 stop9h 49m

Chicago Midway

Tue 9/16

6:00 am-4:08 pm

1 stop9h 08m

$331

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/13

Showing 1-10 of 30 results
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Best time to book a flight from Luis Munoz Marin Intl to Illinois

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

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

Currently, August is the cheapest month in which you can book a flight from San Juan Luis Munoz Marin Intl Airport to Illinois (average of $245). Flying from San Juan Luis Munoz Marin Intl Airport to Illinois in March is currently the most expensive (average of $321). 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 SJU to IL?

Find hourly flight availability from Luis Munoz Marin Intl to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 14, 2025.

When flying from San Juan Luis Munoz Marin Intl Airport to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

Explore weekly flight availability from Luis Munoz Marin Intl to Illinois. 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 14, 2025.

The most flights from SJU to USIL 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 Illinois by month

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

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated June 14, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta and United Airlines from San Juan to Illinois to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Food

7.1

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Crew

8.6

Overall

8.0

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

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Crew

8.6

Overall

8.0

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

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Crew

8.6

Overall

8.0

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

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Crew

8.6

Overall

8.0

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

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Crew

8.6

Overall

8.0

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

Entertainment

7.6

Comfort

8.0

Boarding

8.2

Crew

8.6

Overall

8.0

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 Luis Munoz Marin Intl to Illinois. 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 to fly from San Juan Luis Munoz Marin Intl Airport to Illinois one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $93. However, be on the lookout for offers from Spirit Airlines and Southwest, as they are both options that can get you from San Juan Luis Munoz Marin Intl Airport to Illinois for a low price.

  • What are the most popular routes from San Juan Luis Munoz Marin Intl Airport to Illinois?

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

    Before booking your flight to Illinois from San Juan Luis Munoz Marin Intl Airport, check out the most reliable airlines to get you to your destination on time: Air Canada (87%), United Airlines (87%), Air New Zealand( 87%).

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

    On average you can expect to pay $435 for a flight from San Juan Luis Munoz Marin Intl Airport to Illinois. The cheapest flight overall is $116 while the most popular route, (San Juan Luis Munoz Marin Intl - Chicago O'Hare Intl) is currently priced at $192.

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

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

  • How can I find direct flights from Luis Munoz Marin Intl to Illinois?

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

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

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

    Currently, August is the cheapest month in which you can book a flight from San Juan Luis Munoz Marin Intl Airport to Illinois (average of $245). Flying from San Juan Luis Munoz Marin Intl Airport to Illinois in March is currently the most expensive (average of $321). 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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Alternative routes for Luis Munoz Marin Intl to Illinois

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

Top 6 airlines flying from Luis Munoz Marin Intl to Illinois

Discover the top 6 airlines that operate flights from Luis Munoz Marin Intl to Illinois. 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 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$135Average$264FlexibilityNo cancel feeOn-time65%
FrontierCheapest$137Average$246FlexibilityNo cancel feeOn-time62%
DeltaCheapest$172Average$424FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$217Average$460FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$257Average$438FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$329Average$481FlexibilityNo cancel feeOn-time71%

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