HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Illinois

$716+ Cheap flights from Saint John (YSJ) to Illinois

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/2. Fares are subject to change and may not be available on all flights or dates of travel.
YSJ — ORD
feb. 25 — mar. 41
mar. 2/25
mar. 3/4
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from St John to Illinois 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 St John to Illinois

Keep the following information in mind while searching for St John to Illinois flight deals. Data was last updated febrero 20, 2025.

Round-trip from

$716
(Air Canada)
From Saint John to Illinois
Search Deals

Find flight deals from St John to Illinois

Cheapest flights from St John to Illinois
Explore the most affordable flight options available from St John to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on febrero 20, 2025.

This Air Canada deal was found by Cheapflights users on 2/19. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/25:55 amYSJ - ORD
1 stop5h 14mAir Canada
lun. 7/74:00 pmORD - YSJ
1 stop5h 50mAir Canada
Deal found 2/19$716
This United Airlines deal was found by Cheapflights users on 2/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 7/25:55 amYSJ - ORD
2 stops14h 28mUnited Airlines
lun. 7/79:25 pmORD - YSJ
2 stops11h 24mUnited Airlines
Deal found 2/19$732

Find flights from St John to Illinois within your budget

Customize your flight search to find flights from St John to Illinois 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 febrero 20, 2025.

Fly from

St John

Fly to

Illinois

Route

Depart

Return

Price

Saint JohnChicago

YSJ - ORD

YSJORD

Saint John

mié. 7/2

5:55 am-9:09 am

1 stop5h 14m

Chicago O'Hare Intl

lun. 7/7

4:00 pm-11:50 pm

1 stop5h 50m

$716

Saint JohnChicago

YSJ - ORD

YSJORD

Saint John

mié. 7/2

5:55 am-6:23 pm

2 stops14h 28m

Chicago O'Hare Intl

lun. 7/7

9:25 pm-10:49 am

2 stops11h 24m

$732

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/19

Best time to book a flight from St John to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from St John 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.

Travel insights for flights from St John to Illinois

Get recent, data-driven insights about flights from St John to Illinois including ideal travel times, pricing trends, and more.

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated febrero 20, 2025.
United Airlines
7.4
Good
8,766 reviews

Entertainment

7.1

Crew

8.1

Food

6.7

Comfort

7.3

Boarding

7.7

Overall

7.4

Reviews

1 / 20

2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

United Airlines
7.4
Good
8,766 reviews
United Airlines
7.4
Good
8,766 reviews

Entertainment

7.1

Crew

8.1

Food

6.7

Comfort

7.3

Boarding

7.7

Overall

7.4

Reviews

1 / 20

2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Air Canada
7.0
Good
8,748 reviews
United Airlines
7.4
Good
8,766 reviews

Entertainment

7.1

Crew

8.1

Food

6.7

Comfort

7.3

Boarding

7.7

Overall

7.4

Reviews

1 / 20

2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

Find useful and relevant information for your journey from St John to Illinois. 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 from for flights from Saint John to Illinois?

    Saint John (YSJ) is the airport you will fly out of if you book a flight from Saint John to Illinois. It is only a 9.4 mi journey to Saint John (YSJ) from Saint John’s city center.

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

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

  • How can I find direct flights from St John to Illinois?

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

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

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

  • What is the cheapest month to book a flight from Saint John to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Saint John to Illinois (average of $245). Flying from Saint John to Illinois in March is currently the most expensive (average of $321). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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 St John to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
Moncton to Orlando flights
Moncton to Boston flights
Moncton to Newark flights
Moncton to Las Vegas flights
Moncton to Fort Lauderdale flights
Fredericton to Las Vegas flights
Moncton to John F Kennedy Intl flights
Moncton to LaGuardia flights
Moncton to Miami flights
Fredericton to Orlando flights
Moncton to Tampa flights
Fredericton to John F Kennedy Intl flights
Fredericton to Newark flights
Fredericton to LaGuardia flights
Moncton to Honolulu flights
Moncton to Dallas/Fort Worth flights
St John to San Diego flights
Moncton to Dulles Intl flights
Moncton to Hobby flights
St John to O'Hare Intl flights
Moncton to O'Hare Intl flights
Fredericton to Nashville flights
St John to Boston flights
Fredericton to San Francisco flights
Fredericton to Savannah flights
Moncton to Charlotte flights
Moncton to Fort Myers flights
Moncton to San Diego flights
St John to Portland flights
St John to Las Vegas flights
St John to Los Angeles flights
St John to Jacksonville flights
St John to Honolulu flights
St John to Providence flights
St John to Denver flights
St John to Atlanta flights
Moncton to New Orleans flights
Moncton to Denver flights
Moncton to Atlanta flights
Fredericton to New Orleans flights
Fredericton to Los Angeles 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.