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Cheap flights from San Juan Luis Munoz Marin Intl Airport to Illinois from $98

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Juan Luis Munoz Marin Intl Airport to Illinois departing on 11/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from San Juan Luis Munoz Marin Intl Airport to Illinois

Cheap round-trip flights

Delta Logo
5:41 pm - 11:24 pmSJU-STL
6h 43m1 stop
Delta Logo
1:26 pm - 10:00 pmSTL-SJU
7h 34m1 stop
$205Delta
Find Deal
Fri, Sep 26 - Fri, Oct 3
Spirit Airlines Logo
7:40 pm - 11:56 pmSJU-ORD
5h 16mnonstop
Spirit Airlines Logo
6:30 am - 2:11 pmORD-SJU
6h 41m1 stop
$220Spirit Airlines
Find Deal
Thu, Sep 11 - Tue, Sep 16
Frontier Logo
9:00 am - 12:45 pmSJU-ORD
28h 45m1 stop
Frontier Logo
5:11 am - 3:19 pmORD-SJU
8h 08m1 stop
$221Frontier
Find Deal
Thu, Oct 30 - Mon, Nov 3
Frontier Logo
9:00 am - 1:45 pmSJU-ORD
29h 45m1 stop
Frontier Logo
5:11 am - 3:19 pmORD-SJU
8h 08m1 stop
$232Frontier
Find Deal
Sat, Nov 1 - Mon, Nov 3
American Airlines Logo
8:04 am - 4:06 pmSJU-STL
10h 02m1 stop
American Airlines Logo
6:04 am - 2:40 pmSTL-SJU
6h 36m1 stop
$234American Airlines
Find Deal
Thu, Feb 12 - Mon, Feb 16
American Airlines Logo
7:10 am - 11:58 pmSJU-STL
17h 48m1 stop
American Airlines Logo
6:25 am - 10:10 pmSTL-SJU
14h 45m1 stop
$278American Airlines
Find Deal
Mon, Oct 27 - Thu, Oct 30
Southwest Logo
5:00 am - 12:50 pmSJU-MDW
8h 50m2 stops
Southwest Logo
9:40 am - 5:00 pmMDW-SJU
6h 20m1 stop
$357Southwest
Find Deal
Thu, Sep 25 - Sat, Sep 27
United Airlines Logo
2:05 am - 12:20 pmSJU-STL
12h 15m2 stops
United Airlines Logo
8:50 am - 9:26 pmSTL-SJU
10h 36m1 stop
$408United Airlines
Find Deal
Wed, Feb 11 - Mon, Feb 16
Southwest Logo
5:55 pm - 11:15 pmSJU-STL
7h 20m1 stop
Southwest Logo
2:30 pm - 11:15 pmSTL-SJU
6h 45m1 stop
$470Southwest
Find Deal
Mon, Nov 24 - Sat, Nov 29
United Airlines Logo
1:05 am - 10:49 amSJU-STL
10h 44m2 stops
United Airlines Logo
11:10 am - 11:57 pmSTL-SJU
11h 47m2 stops
$481United Airlines
Find Deal
Thu, Sep 25 - Fri, Oct 3

Spirit Airlines flights from San Juan Luis Munoz Marin Intl Airport to Illinois

Our best Spirit Airlines deals on San Juan Luis Munoz Marin Intl Airport to Illinois flight tickets
Spirit Airlines
Aug 28
SJU7:40 pmSan Juan Luis Munoz Marin Intl
5h 03m
ORD11:43 pmChicago O'Hare Intl
Aug 31
ORD5:05 amChicago O'Hare Intl
15h 43m
1 stop
SJU9:48 pmSan Juan Luis Munoz Marin Intl
$220
Find similar
Spirit Airlines
Aug 29
SJU10:16 pmSan Juan Luis Munoz Marin Intl
12h 01m
1 stop
ORD9:17 amChicago O'Hare Intl
Aug 31
ORD5:05 amChicago O'Hare Intl
15h 43m
1 stop
SJU9:48 pmSan Juan Luis Munoz Marin Intl
$221
Find similar
Spirit Airlines
Sep 5
SJU7:40 pmSan Juan Luis Munoz Marin Intl
5h 16m
ORD11:56 pmChicago O'Hare Intl
Sep 16
ORD6:30 amChicago O'Hare Intl
13h 26m
1 stop
SJU8:56 pmSan Juan Luis Munoz Marin Intl
$227
Find similar

Frontier flights from San Juan Luis Munoz Marin Intl Airport to Illinois

Our best Frontier deals on San Juan Luis Munoz Marin Intl Airport to Illinois flight tickets
Frontier
Oct 30
SJU9:00 amSan Juan Luis Munoz Marin Intl
28h 45m
1 stop
ORD12:45 pmChicago O'Hare Intl
Nov 3
ORD5:11 amChicago O'Hare Intl
8h 08m
1 stop
SJU3:19 pmSan Juan Luis Munoz Marin Intl
$221
Find similar
Frontier
Nov 1
SJU9:00 amSan Juan Luis Munoz Marin Intl
29h 45m
1 stop
ORD1:45 pmChicago O'Hare Intl
Nov 3
ORD5:11 amChicago O'Hare Intl
8h 08m
1 stop
SJU3:19 pmSan Juan Luis Munoz Marin Intl
$232
Find similar
Frontier
Sep 26
SJU3:39 amSan Juan Luis Munoz Marin Intl
12h 38m
1 stop
ORD3:17 pmChicago O'Hare Intl
Oct 25
ORD8:40 amChicago O'Hare Intl
9h 18m
1 stop
SJU6:58 pmSan Juan Luis Munoz Marin Intl
$238
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Juan Luis Munoz Marin Intl Airport 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, momondo users made 832,500 searches. Data last updated August 21, 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

Fly to

Route

Depart

Return

Price

San JuanSt. Louis

SJU - STL

SJUSTL

San Juan Luis Munoz Marin Intl

Fri 9/26

5:41 pm-11:24 pm

1 stop6h 43m

Lambert-St Louis

Fri 10/3

1:26 pm-10:00 pm

1 stop7h 34m

$205

San JuanChicago

SJU - ORD

SJUORD

San Juan Luis Munoz Marin Intl

Thu 9/11

7:40 pm-11:56 pm

Nonstop5h 16m

Chicago O'Hare Intl

Tue 9/16

6:30 am-2:11 pm

1 stop6h 41m

$220

San JuanChicago

SJU - ORD

SJUORD

San Juan Luis Munoz Marin Intl

Thu 10/30

9:00 am-12:45 pm

1 stop28h 45m

Chicago O'Hare Intl

Mon 11/3

5:11 am-3:19 pm

1 stop8h 08m

$221

San JuanChicago

SJU - ORD

SJUORD

San Juan Luis Munoz Marin Intl

Sat 11/1

9:00 am-1:45 pm

1 stop29h 45m

Chicago O'Hare Intl

Mon 11/3

5:11 am-3:19 pm

1 stop8h 08m

$232

San JuanSt. Louis

SJU - STL

SJUSTL

San Juan Luis Munoz Marin Intl

Thu 2/12

8:04 am-4:06 pm

1 stop10h 02m

Lambert-St Louis

Mon 2/16

6:04 am-2:40 pm

1 stop6h 36m

$234

San JuanSt. Louis

SJU - STL

SJUSTL

San Juan Luis Munoz Marin Intl

Mon 10/27

7:10 am-11:58 pm

1 stop17h 48m

Lambert-St Louis

Thu 10/30

6:25 am-10:10 pm

1 stop14h 45m

$278

San JuanChicago

SJU - MDW

SJUMDW

San Juan Luis Munoz Marin Intl

Thu 9/25

5:00 am-12:50 pm

2 stops8h 50m

Chicago Midway

Sat 9/27

9:40 am-5:00 pm

1 stop6h 20m

$357

San JuanSt. Louis

SJU - STL

SJUSTL

San Juan Luis Munoz Marin Intl

Wed 2/11

2:05 am-12:20 pm

2 stops12h 15m

Lambert-St Louis

Mon 2/16

8:50 am-9:26 pm

1 stop10h 36m

$408

San JuanSt. Louis

SJU - STL

SJUSTL

San Juan Luis Munoz Marin Intl

Mon 11/24

5:55 pm-11:15 pm

1 stop7h 20m

Lambert-St Louis

Sat 11/29

2:30 pm-11:15 pm

1 stop6h 45m

$470

San JuanSt. Louis

SJU - STL

SJUSTL

San Juan Luis Munoz Marin Intl

Thu 9/25

1:05 am-10:49 am

2 stops10h 44m

Lambert-St Louis

Fri 10/3

11:10 am-11:57 pm

2 stops11h 47m

$481

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Illinois from

How to get the cheapest flight ticket from San Juan Luis Munoz Marin Intl Airport to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from San Juan Luis Munoz Marin Intl Airport is in January. Flight prices, which tend to average around $232, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of January, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $270.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from San Juan Luis Munoz Marin Intl Airport to Illinois is on a Friday when prices can be found for as low as $348. Flights from San Juan Luis Munoz Marin Intl Airport to Illinois on a Monday will generally be more expensive and average around $502. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the evening. Flights from San Juan Luis Munoz Marin Intl Airport to Illinois during this time can be as low as $246. Flights at noon are often more expensive with an average ticket price of $481.

What is the cheapest San Juan Luis Munoz Marin Intl to Illinois flight route?

Fly from San Juan Luis Munoz Marin Intl to Chicago O'Hare Intl for the best San Juan Luis Munoz Marin Intl - Illinois flight prices

How far in advance should I book a flight to Illinois?

You are more likely to see cheaper flights to Illinois from San Juan Luis Munoz Marin Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $322 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from San Juan Luis Munoz Marin Intl Airport for as low as $257 on momondo.

What cabin class options are available on San Juan Luis Munoz Marin Intl to Illinois flights?

There are 4 cabin classes available to choose from on San Juan Luis Munoz Marin Intl to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on San Juan Luis Munoz Marin Intl Airport to Illinois flights?

No. A direct flight is the cheapest option for a flight between San Juan Luis Munoz Marin Intl Airport to Illinois.

Cheap San Juan Luis Munoz Marin Intl Airport to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Juan Luis Munoz Marin Intl Airport to Illinois

Best Price Found

$169

Fastest flight time

5h 03m

Direct flights

Every day

Airports in Illinois

3 airports
The best one-way flight to Illinois from San Juan Luis Munoz Marin Intl Airport in the past 72 hours is $169. The best round-trip flight deal from San Juan Luis Munoz Marin Intl Airport to Illinois found on momondo in the last 72 hours is $258.
The fastest flight from San Juan Luis Munoz Marin Intl Airport to Illinois takes 5h 03m
Direct flights go from San Juan Luis Munoz Marin Intl Airport to Illinois every day.
There are 3 airports near Illinois: Chicago O'Hare Intl (ORD), Chicago Midway (MDW), Lambert-St Louis (STL)
Search flight deals

  • When did momondo last update prices for flights from San Juan Luis Munoz Marin Intl Airport to Illinois?

    Prices for flights from San Juan Luis Munoz Marin Intl Airport to Illinois are refreshed on a daily basis.

  • How many operators does momondo search for flights from San Juan Luis Munoz Marin Intl Airport to Illinois?

  • How old do you have to be to fly from San Juan Luis Munoz Marin Intl Airport to Illinois?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from San Juan Luis Munoz Marin Intl Airport to Illinois.

  • What documentation or ID do you need to fly to Illinois?

    The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from San Juan Luis Munoz Marin Intl Airport to Illinois?

Best airlines flying from San Juan Luis Munoz Marin Intl Airport to Illinois

Compare and see reviews for airlines that fly from San Juan Luis Munoz Marin Intl Airport to Illinois with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $136Free CancellationRating
6.3
8,035 reviews
Search Spirit Airlines flights
FrontierPriceFrom $137Free CancellationRating
5.8
3,207 reviews
Search Frontier flights
DeltaPriceFrom $162Free CancellationRating
7.9
7,981 reviews
Search Delta flights
United AirlinesPriceFrom $219Free CancellationRating
7.4
8,930 reviews
Search United Airlines flights
SouthwestPriceFrom $257Free CancellationRating
8.0
4,245 reviews
Search Southwest flights
American AirlinesPriceFrom $332Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from San Juan to Illinois?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from San Juan to Illinois. momondo saves you time and could save you money on your trip.

Can I find flights from San Juan to Illinois with flexible booking policies on momondo?

Flights from San Juan to Illinois with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from San Juan to Illinois?

momondo helps you find the best flight between San Juan and Illinois by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from San Juan to Illinois right now. Can momondo alert me if prices change?

Yes. momondo can track prices for San Juan to Illinois flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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