SJU

$69 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 1/11. 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

Mon, Jan 26 - Thu, Jan 29
Frontier Logo
8:45 am - 9:55 amSTL-SJU
23h 10m1 stop
Frontier Logo
3:55 am - 10:33 pmSJU-STL
20h 38m1 stop
$138Frontier
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Fri, Jan 23 - Thu, Jan 29
Frontier Logo
5:11 pm - 9:55 amSTL-SJU
14h 44m1 stop
Frontier Logo
3:55 am - 10:33 pmSJU-STL
20h 38m1 stop
$153Frontier
Find Deal
Sun, Feb 8 - Mon, Feb 16
Multiple Airlines Logo
4:35 pm - 11:18 pmORD-SJU
4h 43mnonstop
Multiple Airlines Logo
3:55 am - 4:19 pmSJU-ORD
14h 24m1 stop
$210Multiple Airlines
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Wed, Dec 10 - Sun, Dec 14
Multiple Airlines Logo
12:09 pm - 12:16 amORD-SJU
10h 07m1 stop
Multiple Airlines Logo
1:59 am - 2:03 pmSJU-ORD
14h 04m1 stop
$211Multiple Airlines
Find Deal
Thu, Jan 8 - Tue, Jan 13
Spirit Airlines Logo
4:35 pm - 11:18 pmORD-SJU
4h 43mnonstop
Spirit Airlines Logo
2:38 pm - 6:00 pmSJU-ORD
5h 22mnonstop
$217Spirit Airlines
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Mon, Jan 19 - Fri, Jan 23
United Airlines Logo
8:55 am - 3:40 pmORD-SJU
4h 45mnonstop
United Airlines Logo
4:52 pm - 8:20 pmSJU-ORD
5h 28mnonstop
$218United Airlines
Find Deal
Fri, Dec 12 - Mon, Jan 12
Spirit Airlines Logo
5:40 am - 12:21 pmORD-SJU
4h 41mnonstop
Spirit Airlines Logo
2:38 pm - 6:00 pmSJU-ORD
5h 22mnonstop
$221Spirit Airlines
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Sun, May 3 - Wed, May 6
Delta Logo
9:00 am - 8:06 pmSTL-SJU
10h 06m1 stop
Delta Logo
6:15 am - 12:54 pmSJU-STL
7h 39m1 stop
$225Delta
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Mon, Jan 19 - Fri, Jan 23
United Airlines Logo
11:15 am - 10:22 pmORD-SJU
9h 07m1 stop
United Airlines Logo
5:50 pm - 11:39 pmSJU-ORD
7h 49m1 stop
$227United Airlines
Find Deal
Mon, Jan 19 - Fri, Jan 23
Delta Logo
10:46 am - 11:44 pmMDW-SJU
10h 58m1 stop
Delta Logo
3:55 pm - 10:26 pmSJU-MDW
8h 31m1 stop
$227Delta
Find Deal

Everything you should know

Cheapest round-trip
$138
Overall average: $424
Frontier
Mon 1/26Thu 1/29
STL - SJU • 1 stop
Cheapest non-stop
$217
Typical prices: $188-$488
Spirit Airlines
Thu 1/8Tue 1/13
ORD - SJU • Non-stop
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to San Juan!
Useful Info

Good to know

Low seasonSeptember
Cheapest flight$69
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly with an average 27% 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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