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Cheap flights from San Juan Luis Munoz Marin Intl Airport to Illinois from $87

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 3/4. 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

Enter your travel dates to find the best prices.
Spirit Airlines Logo
12:32 pm - 3:48 pm
SJU
-
ORD
5h 16mnonstop
Spirit Airlines Logo
12:17 pm - 6:49 pm
ORD
-
SJU
4h 32mnonstop
$146Spirit Airlines
Thu, Feb 26 - Mon, Mar 2
Spirit Airlines Logo
12:32 pm - 3:48 pm
SJU
-
ORD
5h 16mnonstop
Spirit Airlines Logo
12:17 pm - 6:49 pm
ORD
-
SJU
4h 32mnonstop
$147Spirit Airlines
Thu, Feb 26 - Mon, Mar 2
Spirit Airlines Logo
11:52 am - 6:18 pm
SJU
-
ORD
8h 26m
1 stop
Spirit Airlines Logo
12:17 pm - 6:49 pm
ORD
-
SJU
4h 32mnonstop
$159Spirit Airlines
Thu, Feb 26 - Mon, Mar 2
Spirit Airlines Logo
12:32 pm - 3:48 pm
SJU
-
ORD
5h 16mnonstop
Spirit Airlines Logo
12:17 pm - 6:49 pm
ORD
-
SJU
4h 32mnonstop
$162Spirit Airlines
Fri, Feb 27 - Mon, Mar 2
Spirit Airlines Logo
4:31 pm - 11:47 pm
SJU
-
ORD
9h 16m
1 stop
Spirit Airlines Logo
12:17 pm - 6:49 pm
ORD
-
SJU
4h 32mnonstop
$167Spirit Airlines
Fri, Feb 27 - Mon, Mar 2
Frontier Logo
5:25 pm - 12:27 am
SJU
-
STL
9h 02m
1 stop
Frontier Logo
3:49 pm - 2:53 am
STL
-
SJU
9h 04m
1 stop
$202Frontier
Fri, Feb 27 - Mon, Mar 2
Frontier Logo
3:18 pm - 10:19 pm
SJU
-
MDW
8h 01m
1 stop
Frontier Logo
6:00 am - 2:08 pm
MDW
-
SJU
7h 08m
1 stop
$202Frontier
Fri, May 8 - Mon, May 11
Multiple Airlines Logo
11:52 am - 1:56 pm
SJU
-
MDW
28h 04m
1 stop
Multiple Airlines Logo
6:00 am - 1:21 am
MDW
-
SJU
18h 21m
1 stop
$219Multiple Airlines
Wed, Mar 4 - Mon, Mar 9
American Airlines Logo
1:31 pm - 11:46 pm
SJU
-
STL
11h 15m
2 stops
American Airlines Logo
7:00 am - 8:51 pm
STL
-
SJU
12h 51m
1 stop
$256American Airlines
Thu, Apr 16 - Sun, Apr 19
American Airlines Logo
1:31 pm - 11:46 pm
SJU
-
STL
11h 15m
2 stops
American Airlines Logo
7:05 am - 6:10 pm
STL
-
SJU
10h 05m
2 stops
$263American Airlines
Thu, Apr 23 - Mon, Apr 27

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
Feb 26
SJU12:32 pmSan Juan Luis Munoz Marin Intl
5h 16m
ORD3:48 pmChicago O'Hare Intl
Mar 2
ORD7:00 amChicago O'Hare Intl
6h 31m
1 stop
SJU3:31 pmSan Juan Luis Munoz Marin Intl
$165
Spirit Airlines
Feb 26
SJU12:32 pmSan Juan Luis Munoz Marin Intl
5h 16m
ORD3:48 pmChicago O'Hare Intl
Mar 2
ORD12:17 pmChicago O'Hare Intl
4h 32m
SJU6:49 pmSan Juan Luis Munoz Marin Intl
$166
Spirit Airlines
Feb 26
SJU4:36 pmSan Juan Luis Munoz Marin Intl
9h 11m
1 stop
ORD11:47 pmChicago O'Hare Intl
Mar 2
ORD5:15 amChicago O'Hare Intl
8h 16m
1 stop
SJU3:31 pmSan Juan Luis Munoz Marin Intl
$170

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
Mar 4
SJU3:53 amSan Juan Luis Munoz Marin Intl
8h 53m
1 stop
ORD10:46 amChicago O'Hare Intl
Mar 9
ORD4:18 pmChicago O'Hare Intl
16h 54m
1 stop
SJU10:12 amSan Juan Luis Munoz Marin Intl
$199
Frontier
May 8
SJU4:11 pmSan Juan Luis Munoz Marin Intl
8h 05m
1 stop
ORD11:16 pmChicago O'Hare Intl
May 11
ORD5:01 amChicago O'Hare Intl
8h 07m
1 stop
SJU2:08 pmSan Juan Luis Munoz Marin Intl
$202
Frontier
Mar 5
SJU6:00 amSan Juan Luis Munoz Marin Intl
9h 56m
1 stop
MDW1:56 pmChicago Midway
Mar 9
MDW6:00 amChicago Midway
14h 03m
1 stop
SJU9:03 pmSan Juan Luis Munoz Marin Intl
$205

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 February 15, 2026.
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 JuanChicago

SJU - ORD

SJUORD

San Juan Luis Munoz Marin Intl

Thu 2/26

12:32 pm-3:48 pm

Nonstop5h 16m

Chicago O'Hare Intl

Mon 3/2

12:17 pm-6:49 pm

Nonstop4h 32m

$146

San JuanChicago

SJU - ORD

SJUORD

San Juan Luis Munoz Marin Intl

Thu 2/26

12:32 pm-3:48 pm

Nonstop5h 16m

Chicago O'Hare Intl

Mon 3/2

12:17 pm-6:49 pm

Nonstop4h 32m

$147

San JuanChicago

SJU - ORD

SJUORD

San Juan Luis Munoz Marin Intl

Thu 2/26

11:52 am-6:18 pm

1 stop8h 26m

Chicago O'Hare Intl

Mon 3/2

12:17 pm-6:49 pm

Nonstop4h 32m

$159

San JuanChicago

SJU - ORD

SJUORD

San Juan Luis Munoz Marin Intl

Fri 2/27

12:32 pm-3:48 pm

Nonstop5h 16m

Chicago O'Hare Intl

Mon 3/2

12:17 pm-6:49 pm

Nonstop4h 32m

$162

San JuanChicago

SJU - ORD

SJUORD

San Juan Luis Munoz Marin Intl

Fri 2/27

4:31 pm-11:47 pm

1 stop9h 16m

Chicago O'Hare Intl

Mon 3/2

12:17 pm-6:49 pm

Nonstop4h 32m

$167

San JuanSt. Louis

SJU - STL

SJUSTL

San Juan Luis Munoz Marin Intl

Fri 2/27

5:25 pm-12:27 am

1 stop9h 02m

Lambert-St Louis

Mon 3/2

3:49 pm-2:53 am

1 stop9h 04m

$202

San JuanChicago

SJU - MDW

SJUMDW

San Juan Luis Munoz Marin Intl

Fri 5/8

3:18 pm-10:19 pm

1 stop8h 01m

Chicago Midway

Mon 5/11

6:00 am-2:08 pm

1 stop7h 08m

$202

San JuanChicago

SJU - MDW

SJUMDW

San Juan Luis Munoz Marin Intl

Wed 3/4

11:52 am-1:56 pm

1 stop28h 04m

Chicago Midway

Mon 3/9

6:00 am-1:21 am

1 stop18h 21m

$219

San JuanSt. Louis

SJU - STL

SJUSTL

San Juan Luis Munoz Marin Intl

Thu 4/16

1:31 pm-11:46 pm

2 stops11h 15m

Lambert-St Louis

Sun 4/19

7:00 am-8:51 pm

1 stop12h 51m

$256

San JuanSt. Louis

SJU - STL

SJUSTL

San Juan Luis Munoz Marin Intl

Thu 4/23

1:31 pm-11:46 pm

2 stops11h 15m

Lambert-St Louis

Mon 4/27

7:05 am-6:10 pm

2 stops10h 05m

$263

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 February. Flight prices, which tend to average around $191, 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 February, then flying in May is also cheap. Prices for this month can be found on momondo for an average of $264.

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 $377. Flights from San Juan Luis Munoz Marin Intl Airport to Illinois on a Sunday will generally be more expensive and average around $557. 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 $256. Flights in the afternoon are often more expensive with an average ticket price of $485.

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 $324 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 $284 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

$205

Fastest flight time

4h 50m

Direct flights

Every day

Airports in Illinois

98 airports
The best one-way flight to Illinois from San Juan Luis Munoz Marin Intl Airport in the past 72 hours is $205. 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 $265.
The fastest flight from San Juan Luis Munoz Marin Intl Airport to Illinois takes 4h 50m
Direct flights go from San Juan Luis Munoz Marin Intl Airport to Illinois every day.
There are 98 airports in Illinois. From San Juan Luis Munoz Marin Intl Airport there are direct flights to 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
DeltaPriceFrom $116Free CancellationRating
7.9
8,205 reviews
Search Delta flights
Spirit AirlinesPriceFrom $122Free CancellationRating
6.3
8,452 reviews
Search Spirit Airlines flights
JetBluePriceFrom $131Free CancellationRating
7.2
2,898 reviews
Search JetBlue flights
FrontierPriceFrom $137Free CancellationRating
5.7
3,051 reviews
Search Frontier flights
United AirlinesPriceFrom $256Free CancellationRating
7.4
9,296 reviews
Search United Airlines flights
American AirlinesPriceFrom $258Free CancellationRating
7.2
11,297 reviews
Search American Airlines flights
SouthwestPriceFrom $419Free CancellationRating
8.0
4,286 reviews
Search Southwest 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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