SJU

$87 Find Cheap Flights from Illinois to San Juan

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 5/4. 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

Sat, May 2 - Fri, May 8
Frontier Logo
4:59 pm - 2:01 am
STL
-
SJU
8h 02m
1 stop
Frontier Logo
6:09 pm - 12:21 am
SJU
-
STL
7h 12m
1 stop
$176Frontier
Sat, Apr 25 - Sat, May 2
Frontier Logo
4:59 pm - 2:01 am
STL
-
SJU
8h 02m
1 stop
Frontier Logo
3:26 pm - 11:19 pm
SJU
-
STL
8h 53m
1 stop
$186Frontier
Thu, Apr 16 - Fri, Apr 24
Multiple Airlines Logo
12:42 pm - 10:29 pm
ORD
-
SJU
8h 47m
1 stop
Multiple Airlines Logo
4:34 pm - 8:49 pm
SJU
-
ORD
5h 15mnonstop
$223Multiple Airlines
Tue, May 5 - Fri, May 15
Spirit Airlines Logo
4:44 pm - 10:21 pm
ORD
-
SJU
4h 37mnonstop
Spirit Airlines Logo
11:39 am - 3:49 pm
SJU
-
ORD
5h 10mnonstop
$224Spirit Airlines
Fri, Apr 24 - Tue, Apr 28
Multiple Airlines Logo
2:09 pm - 11:43 pm
ORD
-
SJU
8h 34m
1 stop
Multiple Airlines Logo
7:00 am - 10:23 am
SJU
-
ORD
28h 23m
2 stops
$225Multiple Airlines
Sat, May 2 - Wed, May 6
United Airlines Logo
2:38 pm - 8:34 pm
ORD
-
SJU
4h 56mnonstop
United Airlines Logo
7:40 am - 11:53 am
SJU
-
ORD
5h 13mnonstop
$227United Airlines
Thu, May 7 - Mon, May 11
Spirit Airlines Logo
4:44 pm - 10:21 pm
ORD
-
SJU
4h 37mnonstop
Spirit Airlines Logo
5:47 pm - 11:56 pm
SJU
-
ORD
7h 09m
1 stop
$229Spirit Airlines
Sun, May 10 - Fri, May 15
American Airlines Logo
5:45 am - 2:18 pm
SPI
-
SJU
7h 33m
1 stop
American Airlines Logo
7:25 am - 11:43 pm
SJU
-
SPI
17h 18m
2 stops
$326American Airlines
Tue, Apr 28 - Tue, May 5
American Airlines Logo
12:04 pm - 11:02 pm
MLI
-
SJU
9h 58m
1 stop
American Airlines Logo
7:25 am - 6:07 pm
SJU
-
MLI
11h 42m
2 stops
$327American Airlines
Wed, Sep 30 - Wed, Oct 7
United Airlines Logo
6:00 am - 8:38 pm
BMI
-
SJU
13h 38m
2 stops
United Airlines Logo
3:56 pm - 12:12 am
SJU
-
BMI
9h 16m
1 stop
$366United Airlines
Useful Info

Good to know

Low seasonSeptember
Cheapest flight$87
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly with an average 25% 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)