SJU

$103 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 10/28. 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

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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

Fri, Oct 3 - Sat, Oct 4
Southwest Logo
4:55 pm - 12:45 amSTL-SJU
6h 50m1 stop
Southwest Logo
5:45 am - 5:05 pmSJU-STL
12h 20m1 stop
$200Southwest
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Sat, Nov 15 - Wed, Nov 19
Delta Logo
1:33 pm - 11:13 pmSTL-SJU
7h 40m1 stop
Delta Logo
3:32 pm - 9:58 pmSJU-STL
8h 26m1 stop
$205Delta
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Wed, Oct 1 - Wed, Oct 8
American Airlines Logo
3:26 pm - 12:47 pmMLI-SJU
20h 21m2 stops
American Airlines Logo
7:45 am - 11:50 pmSJU-MLI
17h 05m2 stops
$215American Airlines
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Sun, Jan 11 - Thu, Jan 15
American Airlines Logo
1:24 pm - 9:55 pmBMI-SJU
6h 31m1 stop
American Airlines Logo
6:50 pm - 10:37 amSJU-BMI
17h 47m2 stops
$215American Airlines
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Mon, Sep 15 - Fri, Sep 19
Logo
5:10 am - 2:11 pmORD-SJU
8h 01m1 stop
Logo
11:59 am - 5:39 pmSJU-ORD
6h 40m1 stop
$218
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Fri, Oct 3 - Tue, Oct 7
Logo
6:10 am - 11:23 pmORD-SJU
16h 13m1 stop
Logo
3:19 pm - 9:33 pmSJU-ORD
7h 14m1 stop
$219
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Sat, Sep 20 - Tue, Sep 23
Frontier Logo
11:23 am - 8:02 amMDW-SJU
19h 39m2 stops
Frontier Logo
9:26 pm - 3:58 pmSJU-MDW
19h 32m2 stops
$220Frontier
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Mon, Oct 6 - Mon, Oct 13
Spirit Airlines Logo
9:06 pm - 2:51 amORD-SJU
4h 45mnonstop
Spirit Airlines Logo
7:43 pm - 11:57 pmSJU-ORD
5h 14mnonstop
$221Spirit Airlines
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Wed, Sep 17 - Thu, Sep 25
Spirit Airlines Logo
6:30 am - 2:11 pmORD-SJU
6h 41m1 stop
Spirit Airlines Logo
7:40 pm - 11:56 pmSJU-ORD
5h 16mnonstop
$222Spirit Airlines
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Sun, Sep 21 - Sat, Sep 27
Frontier Logo
5:10 am - 2:11 pmORD-SJU
8h 01m1 stop
Frontier Logo
12:28 am - 11:58 amSJU-ORD
12h 30m1 stop
$223Frontier
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Useful Info

Good to know

Low seasonSeptember
Cheapest flight$103
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 31% 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)

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