SJU

$90 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 1/12. 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

KAYAK searches hundreds of travel sites at once for deals on flights to San Juan Luis Munoz Marin Intl Airport

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Everything you should know

Cheapest round-trip
$180
Overall average: $445
Frontier
Mon 2/23Wed 2/25
STL - SJU • 1 stop
Cheapest non-stop
$211
Typical prices: $206-$515
Spirit Airlines
Fri 1/9Sat 1/17
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!
Flight Deals
Useful Info
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, Feb 23 - Wed, Feb 25
Frontier Logo
5:11 pm - 2:50 amSTL-SJU
7h 39m1 stop
Frontier Logo
3:55 am - 10:33 pmSJU-STL
20h 38m1 stop
$180Frontier
Find Deal
Wed, Dec 10 - Fri, Dec 12
Frontier Logo
3:30 pm - 9:55 amSTL-SJU
16h 25m1 stop
Frontier Logo
3:55 am - 10:33 pmSJU-STL
20h 38m1 stop
$192Frontier
Find Deal
Wed, Jan 7 - Mon, Jan 12
Multiple Airlines Logo
6:05 pm - 12:35 pmORD-SJU
16h 30m1 stop
Multiple Airlines Logo
10:47 pm - 8:09 amSJU-ORD
11h 22m1 stop
$209Multiple Airlines
Find Deal
Wed, Jan 7 - Sat, Jan 10
JetBlue Logo
9:10 am - 7:26 pmORD-SJU
8h 16m1 stop
JetBlue Logo
10:25 am - 7:36 pmSJU-ORD
11h 11m1 stop
$210JetBlue
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Fri, Feb 6 - Thu, Feb 12
JetBlue Logo
7:45 am - 6:02 pmORD-SJU
8h 17m1 stop
JetBlue Logo
5:22 pm - 11:10 pmSJU-ORD
7h 48m1 stop
$211JetBlue
Find Deal
Thu, Feb 12 - Mon, Feb 16
American Airlines Logo
6:07 pm - 10:07 amSTL-SJU
14h 00m1 stop
American Airlines Logo
7:00 pm - 10:26 amSJU-STL
17h 26m1 stop
$211American Airlines
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Mon, Jan 5 - Wed, Jan 14
Multiple Airlines Logo
12:39 pm - 10:15 pmORD-SJU
7h 36m1 stop
Multiple Airlines Logo
6:00 am - 12:42 pmSJU-ORD
8h 42m1 stop
$212Multiple Airlines
Find Deal
Sun, Jan 11 - Wed, Jan 21
Spirit Airlines Logo
12:22 pm - 6:54 pmORD-SJU
4h 32mnonstop
Spirit Airlines Logo
1:22 pm - 4:37 pmSJU-ORD
5h 15mnonstop
$213Spirit Airlines
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Fri, Jan 30 - Sun, Feb 8
Spirit Airlines Logo
8:22 pm - 3:35 pmORD-SJU
17h 13m1 stop
Spirit Airlines Logo
11:52 am - 6:39 pmSJU-ORD
8h 47m1 stop
$218Spirit Airlines
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Tue, Feb 3 - Fri, Feb 6
American Airlines Logo
6:00 am - 10:26 pmMLI-SJU
14h 26m1 stop
American Airlines Logo
3:49 pm - 9:33 pmSJU-MLI
7h 44m1 stop
$235American Airlines
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Useful Info

Good to know

Low seasonSeptember
Cheapest flight$90
Best time to beat the crowds with an average 2% drop in price.
Most popular time to fly with an average 26% 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)