SJU

$58 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 2/10. 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

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$172
Typical prices: $301-$609
Frontier
Sat 1/31Wed 2/11
STL - SJU • 1 stop
Cheapest non-stop
$197
Typical prices: $270-$538
Spirit Airlines
Sat 1/24Fri 2/6
ORD - SJU • Non-stop
Start a new search
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

Sat, Jan 31 - Wed, Feb 11
Frontier Logo
5:42 pm - 9:54 am
STL
-
SJU
14h 12m1 stop
Frontier Logo
5:25 pm - 10:27 pm
SJU
-
STL
7h 02m1 stop
$172Frontier
Sat, Jan 31 - Sat, Feb 7
Frontier Logo
5:42 pm - 9:54 am
STL
-
SJU
14h 12m1 stop
Frontier Logo
8:00 am - 8:04 am
SJU
-
STL
26h 04m1 stop
$176Frontier
Sat, Jan 24 - Sat, Jan 31
Frontier Logo
5:42 pm - 9:54 am
STL
-
SJU
14h 12m1 stop
Frontier Logo
8:00 am - 11:33 pm
SJU
-
STL
17h 33m1 stop
$177Frontier
Sat, Feb 21 - Mon, Mar 2
Multiple Airlines Logo
9:18 am - 7:43 pm
ORD
-
SJU
8h 25m1 stop
Multiple Airlines Logo
5:25 pm - 11:15 pm
SJU
-
ORD
7h 50m1 stop
$195Multiple Airlines
Tue, Jan 13 - Fri, Jan 23
JetBlue Logo
7:45 am - 6:05 pm
ORD
-
SJU
8h 20m1 stop
JetBlue Logo
11:06 am - 7:36 pm
SJU
-
ORD
10h 30m1 stop
$196JetBlue
Sat, Jan 31 - Fri, Feb 6
Spirit Airlines Logo
12:17 pm - 6:49 pm
ORD
-
SJU
4h 32mnonstop
Spirit Airlines Logo
1:22 pm - 4:37 pm
SJU
-
ORD
5h 15mnonstop
$197Spirit Airlines
Sat, Feb 21 - Thu, Feb 26
Multiple Airlines Logo
9:18 am - 7:43 pm
ORD
-
SJU
8h 25m1 stop
Multiple Airlines Logo
12:32 pm - 3:48 pm
SJU
-
ORD
5h 16mnonstop
$199Multiple Airlines
Fri, Feb 27 - Sat, Mar 7
JetBlue Logo
12:41 pm - 11:44 pm
ORD
-
SJU
9h 03m1 stop
JetBlue Logo
5:10 am - 11:58 am
SJU
-
ORD
8h 48m1 stop
$202JetBlue
Sun, Feb 1 - Fri, Feb 6
American Airlines Logo
7:31 am - 9:39 pm
MLI
-
SJU
12h 08m1 stop
American Airlines Logo
3:49 pm - 9:33 pm
SJU
-
MLI
7h 44m1 stop
$235American Airlines
Mon, Jan 26 - Sat, Jan 31
American Airlines Logo
8:50 am - 9:39 pm
BMI
-
SJU
10h 49m1 stop
American Airlines Logo
6:00 am - 10:16 pm
SJU
-
BMI
18h 16m2 stops
$235American Airlines
Useful Info

Good to know

Low seasonSeptember
Cheapest flight$58
Best time to beat the crowds with an average 2% drop in price.
Most popular time to fly with an average 30% 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)