$263 Find Cheap Flights from Santiago to Illinois

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Santiago to Illinois departing on 4/23. 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 Illinois

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Santiago to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Santiago to Illinois, as well as popular online travel agencies
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Cheap Flights from Santiago to Illinois

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Chicago
Chicago2 stops$515
St. Louis
St. Louis2 stops$788
Chicago
Chicago2 stops$515
St. Louis
St. Louis2 stops$788

Book Cheap Santiago to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Santiago to Illinois 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 Santiago to Illinois

Fri, Mar 6 - Mon, Mar 23
Multiple Airlines Logo
12:40 am - 8:39 am
SCL
-
ORD
34h 59m
2 stops
Multiple Airlines Logo
11:20 pm - 3:20 pm
ORD
-
SCL
14h 00m
1 stop
$515Multiple Airlines
Wed, Apr 15 - Mon, Apr 20
Multiple Airlines Logo
8:20 pm - 11:59 pm
SCL
-
ORD
28h 39m
2 stops
Multiple Airlines Logo
7:15 pm - 11:05 am
ORD
-
SCL
38h 50m
2 stops
$550Multiple Airlines
Thu, Apr 16 - Sun, May 3
Multiple Airlines Logo
5:01 am - 11:27 am
SCL
-
ORD
31h 26m
2 stops
Multiple Airlines Logo
11:20 pm - 2:15 pm
ORD
-
SCL
13h 55m
1 stop
$555Multiple Airlines
Wed, Mar 18 - Mon, Apr 13
Multiple Airlines Logo
11:25 pm - 1:41 pm
SCL
-
MDW
16h 16m
1 stop
Multiple Airlines Logo
6:30 am - 5:30 am
MDW
-
SCL
22h 00m
2 stops
$561Multiple Airlines
Tue, Apr 14 - Tue, Apr 21
Multiple Airlines Logo
4:41 am - 9:17 pm
SCL
-
ORD
41h 36m
2 stops
Multiple Airlines Logo
11:20 pm - 2:15 pm
ORD
-
SCL
13h 55m
1 stop
$563Multiple Airlines
Wed, May 20 - Tue, May 26
Avianca Logo
6:40 am - 9:20 pm
SCL
-
ORD
15h 40m
1 stop
Avianca Logo
11:20 pm - 2:15 pm
ORD
-
SCL
13h 55m
1 stop
$568Avianca
Wed, Apr 15 - Tue, May 5
LATAM Airlines Logo
7:45 am - 11:59 pm
SCL
-
ORD
17h 14m
2 stops
LATAM Airlines Logo
11:08 am - 5:35 am
ORD
-
SCL
17h 27m
2 stops
$570LATAM Airlines
Tue, Apr 21 - Fri, May 29
Delta Logo
7:45 pm - 12:07 pm
SCL
-
MDW
17h 22m
2 stops
Delta Logo
5:14 pm - 7:15 am
MDW
-
SCL
13h 01m
1 stop
$574Delta
Wed, Apr 15 - Mon, Apr 20
LATAM Airlines Logo
8:40 pm - 12:07 pm
SCL
-
MDW
16h 27m
1 stop
LATAM Airlines Logo
12:53 pm - 6:55 am
MDW
-
SCL
17h 02m
2 stops
$575LATAM Airlines
Wed, Apr 15 - Mon, Apr 20
Delta Logo
8:40 pm - 12:43 pm
SCL
-
MDW
17h 03m
2 stops
Delta Logo
1:23 pm - 7:15 am
MDW
-
SCL
16h 52m
2 stops
$578Delta
Booking Insights

KAYAK's insights & trends for Santiago to Illinois flights

Get data-powered insights and trends into flights from Santiago to Illinois to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Santiago to Illinois?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Santiago to Illinois departing in March.

What is the cheapest month to fly from Santiago to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Santiago to Illinois, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Santiago to Illinois is April, when tickets cost $513 (return) on average. On the other hand, the most expensive months are January and July, when the average cost of round-trip tickets is $840 and $801 respectively.

How far in advance should I book a flight from Santiago to Illinois?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Santiago to Illinois, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Santiago to Illinois, you should book around 5 weeks before departure, which saves you about 8% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.

Good to know

Low seasonNovember
Cheapest flight$263
Most popular time to fly with an average 7% increase in price.
Flight from Santiago to Chicago O'Hare Airport

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Santiago to Illinois?

    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 Santiago to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Santiago to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Santiago to 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 Santiago to Illinois?

    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 from Santiago to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Santiago to Illinois?

    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 from Santiago to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Santiago to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Santiago to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Santiago to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
DeltaOverall score based on 8151 reviews
7.8Entertainment
7.2Food
8.1Boarding
7.9Comfort
8.5Crew
Airline reviews

Comfort seating was on the tight side. Maybe it was a smaller plane(?)

10.0 ExcellentG, Feb 2026
FLL - ATL
Read more Delta reviews

Comfort seating was on the tight side. Maybe it was a smaller plane(?)

I didn't take this flight. I changed the flight. Why am I getting surveys and notifications on flights that I change. Seems like a defect with Kayak.

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Timing, quality of service, promptness and courtesy of the staff

It was last minute due to weather - considering - it was amazing! Good smiles, friendly staff and they were making sure we knew what was going on when and where.

delta last minute gave me a boarding pass for a different flight with no confirmation that they were changing it

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Excellent flight and got us around tough weather. Only issue was seat TV did not work and crew tried to reboot.

Very large passenger too space from my own seat. Arm board couldn’t be lowered because of his size. It wads very uncomfortable trip, as the flight was full couldn’t move anywhere having back pain because of the position in which I was the entire flight.

was sitting in the jet bridge for 10 minutes in -20 degree weather waiting for my bag

Latam wouldn’t tell me how much checked luggage would until I was at the airport and they charged me the highest price possible. Besides that, it was okay.

Comfort in exit seat was excellent. FLight crew and flight were excellent. However exit seat tray table was broken so could not use it. Entertainment monitor did not work at all despite attempts to reset it.

I booked a flight through Kayak to Brazil I have traveled to Brazil several times before Kayak Delta or LATAM never mentioned during the booking or in the pre flight process that the visa requirements to visit Brazil have changed earlier this year. I was unaware of this change and as such never got a visa and was unable to fly from JFK to Sao Paulo Add to this that Delta allowed me to fly from Boston to JFK which they should not have as I didn’t have a visa. It has been a terrible experience and a huge loss of money

Wish the seats were a little more comfortable.. it was a 6 hrs nonstop trip. But the crew was courteous and w a smile

I like this airline a lot no problems at all, except being forced to check a carry-on bag ., Overall very good airline

The assistance we received and the flight itself was wonderful. We will fly with LATAM airlines again, in the future.

we were missing our luggage, trying to find someone to have any empathy was pretty much not happening....

The plane broke down at the Lima stopover and they offered to put me on a flight the be t day but I had to be back in LA that morning and so I had to buy another ticket from Avianca and United for $2k I asked LATAM for compensation and received none. Very bad experience

Just to drop my already labeled bag it took 50 minutes inline. Completely disappointed with Latam operation at GRU

The flight was late. Please do not delay next time.

Seats were awful. Media should have been included for such a long flight.

A lot things happened in this trip.The fly should be less stress.

The flight was good overall. Everything went smoothly, although the landing was a bit rough. Still, it was a pleasant experience

I always enjoy flying Copa. There are very few airlines where I can enjoy a comfortable sleep in-flight. The snacks weren't the best, but they sufficed. The in-flight entertainment was fantastic, and I crossed another movie off my watch list.

Some of the Air hostesses are not that friendly. Need improvement

I liked the meatloaf the chicken was awful but the plane was on time and got there and the staff was nice.

Boarding was quick & efficient; they gave boarding groups due priority; staff & air crew were very cordial and helpful, pleasant flight.

We had a great flight just wished they had a tv so we can see a movie that would of made my trip excellent.

horrible service, food was an embarrassment, no charging for cellphones, stay away

Great experience with a crew always thinking in the passenger

We flew in first class. The crew did not offer drinks before the flight took off, but they treated us well during the flight. The food was excellent. There was actually too much food served, but it was nice to have all the options.

Flight from CHI to PVD was delayed by over 20 hours.

Update to handle the delay was very bad, crews no smiles or welcome or thanks. Don’t care attitude

Pilot navigated severe weather/snow storm with skill. Described his intentions clearly

Little warm on the plane and delayed for an hour

So excited very proud first of all I wanna thank kayak all updates very professional and fast alart And amazing cabin crew so nice to me they deserve big salute

The boarding process needs to be fixed. The zone don't work, especially when there is hardly anyone in zones 3, 4,and 5, leaving the majority of the passengers backed up in the aisle, especially because passengers seated near the front are blocking passengers who are seated in the rear of the plane. It would also help if the size of carry on bags was more strictly enforced.

Awful. They won’t help me with anything. I booked on American but they abdicated to Iberia. The ticket was overpriced. Everything negative

I enjoyed the extra leg room compared to other airlines. The first stewards made my daughter’s birthday special by giving her an extra snack. Then the last one coming home from Chicago to Appleton made our night really enjoyable Thanks for making our trip enjoyable

It was good..clean, comfy seat. Friendly warm welcoming crew. Was able to check my cabin luggage at the gate which I was able to pickup in a decent time from baggage claim. The app gave all updates from delays to baggage claim info. Overall smooth flight.

Horrible experience with Avianca, they delayed their flight and when we arrived to NYC, AVIANCA took 1 hr y 30 mins to park the airplane and all passenger get off the plane, it made me lost all my trains to get back home and I came back to my place at 3 am instead of 12 am. On the top of that their plane seat are so uncomfortable and is not enough space and killed my legs and knees, Avianca used to be good when it was a Colombian company, now after Brasilian company bought them, their service quality is bad and their flights are delayed and oversold.

It was delayed and I lost my connection flight to Cali and I missed my Mom's funeral and avianca lost my check in luggage

I handed in my suitcase in perfect condition at SAL Airport. And in MIA Airport I received it with one corner broken and the wheels bent.

I like the crew members they're very friendly. Clean plane. The flight was on time. I dont like the comfort my car seat its better that the plane seats. They charge for everything. This airline was very good. Now it's a low cost airline

I like the crew they're very friendly. I don't like. on five hour flight they not offered snacks. Any drink. Not even coffee

Not even water is offered on the flight. You cannot lean back on the seats and the seats are so narrow you can’t avoid rubbing elbows with the person next to you.

6 hour flight and have to pay for everything 100 dollars to add a carry-on bag is insane

Boarding, crew were excellent, food was ok and entertainment need to improve

The seats were uncomfortable and barely reclined at all. Very little leg room despite being business class. The crew was friendly and the food was good. Had to use my own phone for in-flight entertainment.

The check in is the only positive thing in Avianca. The seat is the most uncomfortable I have traveled, the distance is minimal.

Everything you need to know for your flight from Santiago to Illinois

Information on your arrival and departure airports