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Cheap flights from Illinois to Santiago from $257

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Santiago departing on 11/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Illinois to Santiago

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:48 am - 7:40 amORD-SCL
21h 52m2 stops
Multiple Airlines Logo
11:25 pm - 6:36 pmSCL-ORD
22h 11m1 stop
$687Multiple Airlines
Find Deal
Tue, Nov 18 - Fri, Dec 5
Multiple Airlines Logo
10:47 am - 7:40 amORD-SCL
17h 53m2 stops
Multiple Airlines Logo
11:25 pm - 6:36 pmSCL-ORD
22h 11m1 stop
$688Multiple Airlines
Find Deal
Wed, Nov 26 - Fri, Dec 5
LATAM Airlines Logo
9:53 am - 5:35 amORD-SCL
16h 42m2 stops
LATAM Airlines Logo
11:10 pm - 10:08 amSCL-ORD
13h 58m1 stop
$689LATAM Airlines
Find Deal
Mon, Jan 12 - Mon, Jan 26
Air Canada Logo
7:15 am - 6:50 amORD-SCL
20h 35m1 stop
Air Canada Logo
8:55 pm - 9:13 amSCL-ORD
15h 18m1 stop
$691Air Canada
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Sat, Jan 24 - Thu, Feb 5
LATAM Airlines Logo
10:24 am - 6:55 amORD-SCL
17h 31m1 stop
LATAM Airlines Logo
11:25 pm - 1:39 pmSCL-ORD
17h 14m2 stops
$693LATAM Airlines
Find Deal
Mon, Feb 2 - Tue, Feb 17
Multiple Airlines Logo
10:47 am - 7:40 amORD-SCL
17h 53m2 stops
Multiple Airlines Logo
11:25 pm - 6:36 pmSCL-ORD
22h 11m1 stop
$694Multiple Airlines
Find Deal
Wed, Nov 26 - Mon, Dec 8
Air Canada Logo
3:35 pm - 6:50 amORD-SCL
36h 15m1 stop
Air Canada Logo
8:55 pm - 1:01 pmSCL-ORD
19h 06m1 stop
$696Air Canada
Find Deal
Mon, Jan 12 - Wed, Jan 21
Avianca Logo
10:20 pm - 3:20 pmORD-SCL
14h 00m1 stop
Avianca Logo
1:35 am - 8:20 pmSCL-ORD
21h 45m1 stop
$713Avianca
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Fri, Dec 5 - Thu, Dec 11
Delta Logo
11:21 am - 7:40 amMDW-SCL
17h 19m1 stop
Delta Logo
11:10 pm - 10:01 amSCL-MDW
13h 51m1 stop
$714Delta
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Mon, Jan 12 - Tue, Feb 3
Delta Logo
1:28 pm - 7:40 amMDW-SCL
15h 12m2 stops
Delta Logo
11:10 pm - 5:55 pmSCL-MDW
21h 45m2 stops
$719Delta
Find Deal
Tue, Jan 27 - Tue, Feb 10

Delta flights from Illinois to Santiago

Our best Delta deals on Illinois to Santiago flight tickets
Delta
Jan 12
MDW11:21 amChicago Midway
17h 19m
1 stop
SCL7:40 amSantiago Arturo Merino Benitez
Feb 3
SCL11:10 pmSantiago Arturo Merino Benitez
13h 51m
1 stop
MDW10:01 amChicago Midway
$714
Find similar
Delta
Jan 27
MDW1:28 pmChicago Midway
15h 12m
2 stops
SCL7:40 amSantiago Arturo Merino Benitez
Feb 10
SCL11:10 pmSantiago Arturo Merino Benitez
21h 45m
2 stops
MDW5:55 pmChicago Midway
$719
Find similar
Delta
Feb 2
MDW10:46 amChicago Midway
17h 54m
1 stop
SCL7:40 amSantiago Arturo Merino Benitez
Feb 17
SCL11:15 pmSantiago Arturo Merino Benitez
13h 43m
1 stop
MDW9:58 amChicago Midway
$749
Find similar

United Airlines flights from Illinois to Santiago

Our best United Airlines deals on Illinois to Santiago flight tickets
United Airlines
Mar 11
STL6:00 amLambert-St Louis
23h 50m
1 stop
SCL7:50 amSantiago Arturo Merino Benitez
Mar 23
SCL9:45 pmSantiago Arturo Merino Benitez
13h 39m
1 stop
STL9:24 amLambert-St Louis
$756
Find similar
United Airlines
Mar 11
STL6:00 amLambert-St Louis
23h 50m
1 stop
SCL7:50 amSantiago Arturo Merino Benitez
Mar 23
SCL9:45 pmSantiago Arturo Merino Benitez
13h 39m
1 stop
STL9:24 amLambert-St Louis
$758
Find similar
United Airlines
Nov 9
ORD5:04 pmChicago O'Hare Intl
12h 46m
1 stop
SCL8:50 amSantiago Arturo Merino Benitez
Nov 23
SCL10:45 pmSantiago Arturo Merino Benitez
13h 26m
1 stop
ORD9:11 amChicago O'Hare Intl
$914
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momondo Fare Finder

 
Customize your flight search to find flights from Illinois to Santiago that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated November 4, 2025.
Use the filters below to find and compare flights from Illinois to Santiago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoSantiago

ORD - SCL

ORDSCL

Chicago O'Hare Intl

Tue 11/18

6:48 am-7:40 am

2 stops21h 52m

Santiago Arturo Merino Benitez

Fri 12/5

11:25 pm-6:36 pm

1 stop22h 11m

$687

ChicagoSantiago

ORD - SCL

ORDSCL

Chicago O'Hare Intl

Wed 11/26

10:47 am-7:40 am

2 stops17h 53m

Santiago Arturo Merino Benitez

Fri 12/5

11:25 pm-6:36 pm

1 stop22h 11m

$688

ChicagoSantiago

ORD - SCL

ORDSCL

Chicago O'Hare Intl

Mon 1/12

9:53 am-5:35 am

2 stops16h 42m

Santiago Arturo Merino Benitez

Mon 1/26

11:10 pm-10:08 am

1 stop13h 58m

$689

ChicagoSantiago

ORD - SCL

ORDSCL

Chicago O'Hare Intl

Sat 1/24

7:15 am-6:50 am

1 stop20h 35m

Santiago Arturo Merino Benitez

Thu 2/5

8:55 pm-9:13 am

1 stop15h 18m

$691

ChicagoSantiago

ORD - SCL

ORDSCL

Chicago O'Hare Intl

Mon 2/2

10:24 am-6:55 am

1 stop17h 31m

Santiago Arturo Merino Benitez

Tue 2/17

11:25 pm-1:39 pm

2 stops17h 14m

$693

ChicagoSantiago

ORD - SCL

ORDSCL

Chicago O'Hare Intl

Wed 11/26

10:47 am-7:40 am

2 stops17h 53m

Santiago Arturo Merino Benitez

Mon 12/8

11:25 pm-6:36 pm

1 stop22h 11m

$694

ChicagoSantiago

ORD - SCL

ORDSCL

Chicago O'Hare Intl

Mon 1/12

3:35 pm-6:50 am

1 stop36h 15m

Santiago Arturo Merino Benitez

Wed 1/21

8:55 pm-1:01 pm

1 stop19h 06m

$696

ChicagoSantiago

ORD - SCL

ORDSCL

Chicago O'Hare Intl

Fri 12/5

10:20 pm-3:20 pm

1 stop14h 00m

Santiago Arturo Merino Benitez

Thu 12/11

1:35 am-8:20 pm

1 stop21h 45m

$713

ChicagoSantiago

MDW - SCL

MDWSCL

Chicago Midway

Mon 1/12

11:21 am-7:40 am

1 stop17h 19m

Santiago Arturo Merino Benitez

Tue 2/3

11:10 pm-10:01 am

1 stop13h 51m

$714

ChicagoSantiago

MDW - SCL

MDWSCL

Chicago Midway

Tue 1/27

1:28 pm-7:40 am

2 stops15h 12m

Santiago Arturo Merino Benitez

Tue 2/10

11:10 pm-5:55 pm

2 stops21h 45m

$719

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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How to get the cheapest flight ticket from Illinois to Santiago

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Santiago?

In general, September is the cheapest month to fly from Illinois to Santiago. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $665. If you don’t want to visit Santiago in September, then you should wait until April to fly from Illinois, when ticket prices are also cheap, with an average price of $704.

What is the cheapest day to depart on your flight to Santiago?

The cheapest day to depart on your flight to Santiago is on a Monday when prices can be found for as low as $847. This is often the case because there is less demand to fly during this day of the week. Be sure to avoid booking your departure on a Saturday as prices are generally higher than usual. According to our data, the average ticket price to Santiago on Saturday is $992.

What is the cheapest time of day to depart on your flight to Santiago?

In the evening is the cheapest time of day to fly from Illinois to Santiago when you can find flight prices for as low as $843. Flying to Santiago in the evening is an ideal time because this is during off-peak travel hours. In the afternoon is when there is more demand to fly to Santiago, so prices are often more expensive at around $942 per ticket.

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

You are more likely to see cheaper flights to Santiago from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Santiago for around $864 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Santiago from Illinois for as low as $673 on momondo.

Can stopping save me money on Illinois to Santiago flights?

You could potentially save up to 31% on your flight if you consider stops on a Illinois to Santiago flight.

Cheap Illinois to Santiago flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Santiago

Direct flights

None
There are no direct flights from Illinois to Santiago. There are no popular flight routes from Illinois to Santiago.
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  • When did momondo last update prices for flights from Illinois to Santiago Arturo Merino Benitez Airport?

    Prices for flights from Illinois to Santiago Arturo Merino Benitez Airport were last updated today.

  • How many operators does momondo search for flights from Illinois to Santiago Arturo Merino Benitez Airport?

  • How old do you have to be to fly from Illinois to Santiago Arturo Merino Benitez Airport?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Santiago Arturo Merino Benitez Airport.

  • What documentation or ID do you need to fly to Santiago Arturo Merino Benitez Airport?

    The required travel and health documents for your Santiago Arturo Merino Benitez Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Santiago Arturo Merino Benitez Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Illinois to Santiago

Compare and see reviews for airlines that fly from Illinois to Santiago with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $484Free CancellationRating
7.1
10,404 reviews
Search Air Canada flights
AviancaPriceFrom $564Free CancellationRating
6.6
2,471 reviews
Search Avianca flights
United AirlinesPriceFrom $626Free CancellationRating
7.4
9,001 reviews
Search United Airlines flights
Copa AirlinesPriceFrom $641Free CancellationRating
7.6
1,562 reviews
Search Copa Airlines flights
American AirlinesPriceFrom $667Free CancellationRating
7.2
11,040 reviews
Search American Airlines flights
LATAM AirlinesPriceFrom $684Free CancellationRating
7.5
1,874 reviews
Search LATAM Airlines flights
DeltaPriceFrom $699Free CancellationRating
7.9
8,004 reviews
Search Delta flights

Traveling to a place near Santiago?

Book flights to Santiago if you plan to visit one of these locations
Viña del Mar
Santa Cruz
Valparaíso
Valle Nevado
San Fernando
Pichilemu

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Santiago?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Santiago from Illinois.

Can I find flights from Illinois to Santiago with flexible booking policies on momondo?

Yes. All flights to Santiago from Illinois on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Illinois to Santiago?

Once all potential Illinois to Santiago flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Illinois to Santiago right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Illinois to Santiago flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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