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O'Hare Intl

$257+ Cheap flights from Saint John (YSJ) to O'Hare Intl (ORD)

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 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
YSJ — ORD
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
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Find flight deals from St John to O'Hare Intl

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

This United Airlines deal was found by Cheapflights users on 8/18. 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.
Fri 8/2211:25 amYSJ - ORD
1 stop5h 30mUnited Airlines
Sun 8/2411:15 amORD - YSJ
2 stops11h 45mUnited Airlines
Deal found 8/18$1,034

Cheapflights Fare Finder

 
Customize your flight search to find flights from St John to O'Hare Intl 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 August 20, 2025.
Use the filters below to find and compare flights from Saint John to Chicago O'Hare Intl Airport that are best for you.

Fly from

St John

Fly to

O'Hare Intl

Route

Depart

Return

Price

Saint JohnChicago

YSJ - ORD

YSJORD

Saint John

Mon 9/29

10:45 am-5:39 pm

2 stops32h 54m

$257

Saint JohnChicago

YSJ - ORD

YSJORD

Saint John

Sat 10/4

11:35 am-2:55 pm

1 stop5h 20m

$263

Saint JohnChicago

YSJ - ORD

YSJORD

Saint John

Thu 10/16

11:35 am-2:55 pm

1 stop5h 20m

$263

Saint JohnChicago

YSJ - ORD

YSJORD

Saint John

Mon 9/29

5:55 am-10:53 am

1 stop6h 58m

$271

Saint JohnChicago

YSJ - ORD

YSJORD

Saint John

Sat 10/4

11:35 am-6:30 pm

2 stops8h 55m

$303

Saint JohnChicago

YSJ - ORD

YSJORD

Saint John

Thu 10/16

12:00 pm-6:53 pm

3 stops32h 53m

$345

Saint JohnChicago

YSJ - ORD

YSJORD

Saint John

Thu 10/16

5:55 am-11:15 pm

2 stops19h 20m

$346

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Best time to book a flight from St John to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl 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.

Related info for your journey

Find useful and relevant information for your journey from St John to O'Hare Intl. 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 Chicago O'Hare Intl?

    Saint John (YSJ), located 9.4 mi from the city center, is the airport you fly out of when you book flights from Saint John to Chicago O'Hare Intl. 0 airlines have flights from Saint John to Chicago O'Hare Intl on a regular basis. Booking flights from Saint John to Chicago O'Hare Intl should not be difficult; the airport handles an average of 0 outbound flights to Chicago O'Hare Intl per day.

  • Can I find deals for flights from St John to O'Hare Intl that include hotel bookings?

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

  • How can I find direct flights from St John to O'Hare Intl?

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

  • Can I find deals for business class flights from St John to O'Hare Intl?

    Yes. Cheapflights offers flight deals from St John to O'Hare Intl 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 Chicago O'Hare Intl Airport?

    Currently, August is the cheapest month in which you can book a flight from Saint John to Chicago O'Hare Intl Airport (average of $245). Flying from Saint John to Chicago O'Hare Intl Airport 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

Traveling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Schaumburg
Rosemont
Hoffman Estates
Beloit
Skokie
Des Plaines
Elgin
Gurnee
Arlington Heights
Racine
Rockford
Great Lakes
Orland Park
Naperville
Merrillville
Elk Grove Village
Downers Grove
Evanston
Lake Geneva
Joliet

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Alternative routes for St John to O'Hare Intl

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