SJU

$117 Find Cheap Flights from Illinois to San Juan - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to San Juan departing on 10/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Cheap Flights from Illinois to San Juan

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Illinois to San Juan that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Illinois to San Juan

Sun, Aug 16 - Wed, Aug 26
Frontier Logo
7:05 am - 12:41 am
ORD
-
SJU
40h 36m
2 stops
Frontier Logo
7:14 pm - 11:27 pm
SJU
-
ORD
5h 13mnonstop
$234Frontier
Mon, Aug 17 - Sat, Aug 22
Frontier Logo
12:44 am - 6:44 am
ORD
-
SJU
5h 00mnonstop
Frontier Logo
5:37 pm - 7:59 pm
SJU
-
ORD
27h 22m
2 stops
$235Frontier
Thu, Aug 27 - Fri, Aug 28
Southwest Logo
2:55 pm - 11:50 pm
MDW
-
SJU
7h 55m
1 stop
Southwest Logo
5:30 am - 2:05 pm
SJU
-
MDW
9h 35m
1 stop
$271Southwest
Sun, Aug 23 - Thu, Aug 27
Southwest Logo
8:05 pm - 9:10 am
MDW
-
SJU
12h 05m
1 stop
Southwest Logo
8:55 pm - 8:45 am
SJU
-
MDW
12h 50m
1 stop
$276Southwest
Wed, Oct 28 - Wed, Nov 4
United Airlines Logo
10:35 am - 8:00 pm
MLI
-
SJU
8h 25m
1 stop
United Airlines Logo
8:25 am - 1:58 pm
SJU
-
MLI
7h 33m
1 stop
$316United Airlines
Thu, Aug 6 - Thu, Aug 13
Multiple Airlines Logo
6:39 pm - 12:41 am
EVV
-
SJU
29h 02m
1 stop
Multiple Airlines Logo
9:02 am - 7:04 pm
SJU
-
EVV
11h 02m
1 stop
$320Multiple Airlines
Sun, Nov 1 - Sat, Nov 7
United Airlines Logo
10:35 am - 9:00 pm
MLI
-
SJU
8h 25m
1 stop
United Airlines Logo
8:05 am - 5:43 pm
SJU
-
MLI
11h 38m
2 stops
$331United Airlines
Sat, Oct 10 - Sat, Oct 17
American Airlines Logo
4:23 pm - 9:46 am
MLI
-
SJU
16h 23m
2 stops
American Airlines Logo
6:20 am - 10:01 pm
SJU
-
MLI
16h 41m
2 stops
$346American Airlines
Fri, Oct 2 - Sun, Oct 4
American Airlines Logo
6:41 pm - 2:50 pm
CMI
-
SJU
19h 09m
2 stops
American Airlines Logo
4:06 pm - 11:43 am
SJU
-
CMI
20h 37m
2 stops
$346American Airlines
Sat, Aug 1 - Fri, Aug 7
Multiple Airlines Logo
4:29 pm - 2:15 am
EVV
-
SJU
8h 46m
1 stop
Multiple Airlines Logo
10:48 pm - 3:49 pm
SJU
-
EVV
18h 01m
1 stop
$452Multiple Airlines
Useful Info

Good to know

Low season

September

Cheapest flight

$117
Best time to beat the crowds with an average 10% drop in price.
Most popular time to fly with an average 18% increase in price.
Flight from St. Louis to San Juan

FAQs for booking Illinois to San Juan flights

  • How does KAYAK find such low prices on flights from Illinois to San Juan?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to San Juan.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to San Juan?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Juan from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Illinois to San Juan?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Juan with an airline and back to Illinois with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to San Juan?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Juan from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near San Juan?

Book flights to San Juan if you plan to visit one of these locations
Rio Grande
Caguas

Everything you need to know for your flight to San Juan

Information on your arrival and departure airports

San Juan (SJU)