HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Antofagasta

$440+ Cheap flights from Illinois to Antofagasta (ANF)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/15. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — ANF
Jan 2 — Jan 91
Fri 1/2
Fri 1/9
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Illinois to Antofagasta with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Illinois to Antofagasta

Cheapest flights from Illinois to Antofagasta
Explore the most affordable flight options available from Illinois to Antofagasta. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 3, 2025.

This LATAM Airlines deal was found by Cheapflights users on 11/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/610:36 amORD - ANF
2 stops31h 18mLATAM Airlines
Wed 12/108:07 pmANF - ORD
2 stops19h 36mLATAM Airlines
Deal found 11/30$1,667

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Antofagasta 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, Cheapflights users made 2,558,603 searches. Data last updated December 3, 2025.
Use the filters below to find and compare flights from Illinois to Antofagasta that are best for you.

Fly from

Illinois

Fly to

Antofagasta

Route

Depart

Return

Price

ChicagoAntofagasta

ORD - ANF

ORDANF

Chicago O'Hare Intl

Mon 12/15

1:23 pm-8:06 am

3 stops39h 43m

$440

ChicagoAntofagasta

ORD - ANF

ORDANF

Chicago O'Hare Intl

Mon 12/15

6:45 am-4:30 am

2 stops18h 45m

$673

ChicagoAntofagasta

ORD - ANF

ORDANF

Chicago O'Hare Intl

Thu 1/15

5:59 pm-10:32 am

2 stops37h 33m

$682

ChicagoAntofagasta

ORD - ANF

ORDANF

Chicago O'Hare Intl

Thu 1/15

5:59 pm-11:18 pm

3 stops26h 19m

$747

ChicagoAntofagasta

ORD - ANF

ORDANF

Chicago O'Hare Intl

Wed 1/14

12:59 am-11:32 am

2 stops31h 33m

$5,273

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/2

Best time to book a flight from Illinois to Antofagasta

Have a flexible travel schedule? Discover the best time to fly to Antofagasta from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Antofagasta
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Antofagasta. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Antofagasta from Illinois?

    If you book a flight to Antofagasta from Illinois, you will be flying to Cerro Moreno, which is the city’s only airport. Antofagasta Cerro Moreno (ANF) is located 14.7 mi from the center of Antofagasta.

  • Can I find deals for flights from Illinois to Antofagasta that include hotel bookings?

    Yes. In addition to deals on Illinois to Antofagasta flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Antofagasta?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Antofagasta.

  • Can I find deals for business class flights from Illinois to Antofagasta?

    Yes. Cheapflights offers flight deals from Illinois to Antofagasta by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Illinois to Antofagasta

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Santiago flights
Miami to Santiago flights
Los Angeles to Santiago flights
Newark to Santiago flights
LaGuardia to Santiago flights
Dulles Intl to Santiago flights
Hobby to Santiago flights
San Francisco to Santiago flights
Reagan-National to Santiago flights
Boston to Santiago flights
Denver to Santiago flights
Baltimore to Santiago flights
George Bush Intcntl to Santiago flights
Seattle to Santiago flights
Fort Lauderdale to Santiago flights
O'Hare Intl to Santiago flights
Orlando to Santiago flights
Atlanta to Santiago flights
Dallas/Fort Worth to Santiago flights
Minneapolis to Santiago flights
Austin to Santiago flights
Midway to Santiago flights
Des Moines to Santiago flights
Tampa to Santiago flights
Detroit to Santiago flights
Philadelphia to Santiago flights
San Diego to Santiago flights
Cleveland to Santiago flights
Charlotte to Santiago flights
Ontario to Santiago flights
Raleigh to Santiago flights
San Jose to Santiago flights
Sky Harbor Intl to Santiago flights
St. Louis to Santiago flights
Love Field to Santiago flights
West Palm Beach to Santiago flights
Salt Lake City to Santiago flights
John F Kennedy Intl to Easter Island flights
Portland to Santiago flights
Sacramento to Santiago flights
Cincinnati to Santiago flights
Grand Rapids to Santiago flights
Norfolk to Santiago flights
Las Vegas to Santiago flights
Miami to Punta Arenas flights
Hartford to Santiago flights
San Antonio to Santiago flights
Pittsburgh to Santiago flights
Richmond to Santiago flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.