SJU

$71 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 10/20. 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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Flights 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

Tue, Sep 16 - Sun, Sep 21
Southwest Logo
2:15 pm - 10:30 pmSTL-SJU
7h 15m1 stop
Southwest Logo
10:30 pm - 10:40 amSJU-STL
13h 10m1 stop
$175Southwest
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Tue, Aug 5 - Wed, Aug 6
Spirit Airlines Logo
4:36 pm - 1:35 amORD-SJU
7h 59m1 stop
Spirit Airlines Logo
4:43 pm - 7:04 amSJU-ORD
15h 21m1 stop
$188Spirit Airlines
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Sat, Oct 4 - Tue, Oct 7
American Airlines Logo
7:23 am - 11:37 pmSTL-SJU
15h 14m2 stops
American Airlines Logo
7:00 am - 6:36 pmSJU-STL
12h 36m2 stops
$197American Airlines
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Sun, Nov 16 - Sat, Nov 22
Delta Logo
7:20 am - 5:15 pmSTL-SJU
7h 55m1 stop
Delta Logo
4:30 pm - 11:02 pmSJU-STL
8h 32m1 stop
$205Delta
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Mon, Sep 15 - Mon, Sep 22
Delta Logo
11:04 am - 10:00 pmSTL-SJU
9h 56m1 stop
Delta Logo
5:41 pm - 11:24 pmSJU-STL
6h 43m1 stop
$212Delta
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Mon, Dec 8 - Thu, Dec 11
American Airlines Logo
4:55 pm - 5:10 pmBMI-SJU
22h 15m2 stops
American Airlines Logo
5:50 am - 9:20 pmSJU-BMI
17h 30m2 stops
$215American Airlines
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Fri, Aug 1 - Fri, Aug 8
Frontier Logo
12:49 pm - 5:03 pmMDW-SJU
27h 14m1 stop
Frontier Logo
3:08 pm - 11:17 pmSJU-MDW
9h 09m1 stop
$220Frontier
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Wed, Oct 1 - Sun, Oct 5
United Airlines Logo
8:52 am - 2:44 pmORD-SJU
4h 52mnonstop
United Airlines Logo
3:56 pm - 8:03 pmSJU-ORD
5h 07mnonstop
$224United Airlines
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Wed, Sep 17 - Wed, Sep 24
United Airlines Logo
8:52 am - 2:44 pmORD-SJU
4h 52mnonstop
United Airlines Logo
1:25 pm - 9:56 pmSJU-ORD
9h 31m1 stop
$229United Airlines
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Sat, Dec 13 - Mon, Dec 15
Frontier Logo
6:00 am - 2:54 pmMDW-SJU
6h 54m1 stop
Frontier Logo
5:50 pm - 3:30 pmSJU-MDW
23h 40m1 stop
$230Frontier
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Good to know

Low seasonSeptember
High seasonDecember
Cheapest flight$71
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly with an average 38% 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.

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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