Find flights
When to book
FAQs

Cheap flights from Saint John to Chicago O'Hare Intl Airport from C$ 675

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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
YSJ — ORD
9 Apr — 16 Apr1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from St John to O'Hare Intl

Enter your travel dates to find the best prices.

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 10 March 2026.

Fri 5/612:20 p.m.
YSJ
-
ORD
1 stop6h 39m
Air Canada
Sun 7/69:55 a.m.
ORD
-
YSJ
1 stop11h 57m
Air Canada
Deal found 5/3C$ 675
Fri 5/65:35 a.m.
YSJ
-
ORD
1 stop5h 30m
United Airlines
Sun 7/66:00 a.m.
ORD
-
YSJ
2 stops7h 50m
United Airlines
Deal found 5/3C$ 691
Sun 29/311:45 a.m.
YSJ
-
ORD
1 stop22h 15m
Air Canada
Mon 30/312:50 p.m.
ORD
-
YSJ
1 stop20h 20m
Air Canada
Deal found 5/3C$ 854
Sun 29/311:45 a.m.
YSJ
-
ORD
2 stops23h 53m
United Airlines
Mon 30/36:01 p.m.
ORD
-
YSJ
1 stop15h 09m
United Airlines
Deal found 5/3C$ 883

Find flight deals from St John to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from St John (YSJ) to O'Hare Intl (ORD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 10 March 2026.

Round-trip from

C$ 675
Air Canada
  • Air Canada
  • 5/6-7/6
  • 2 total stops
  • 18h 36m total
  • Saint John to Chicago
Search Deals

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 629,999 searches. Data last updated 10 March 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Saint JohnChicago

YSJ - ORD

YSJORD

Saint John

Fri 5/6

12:20 p.m.-4:59 p.m.

1 stop6h 39m

Chicago O'Hare Intl

Sun 7/6

9:55 a.m.-11:52 p.m.

1 stop11h 57m

C$ 675
Quickest round-trip

Saint JohnChicago

YSJ - ORD

YSJORD

Saint John

Fri 5/6

5:35 a.m.-9:05 a.m.

1 stop5h 30m

Chicago O'Hare Intl

Sun 7/6

6:00 a.m.-3:50 p.m.

2 stops7h 50m

C$ 691

Saint JohnChicago

YSJ - ORD

YSJORD

Saint John

Sun 29/3

11:45 a.m.-9:38 a.m.

2 stops23h 53m

Chicago O'Hare Intl

Mon 30/3

2:30 p.m.-11:10 a.m.

2 stops18h 40m

C$ 891

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/3

Sorted by cheapest first

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?

    For a flight from Saint John to Chicago O'Hare Intl, you will be flying from Saint John. Saint John (YSJ) is just 15.1 km from the centre of the city. Saint John is the only Saint John airport and it handles 0 outbound flights to Chicago O'Hare Intl per day. 0 airlines have flights to Chicago O'Hare Intl from Saint John on a regular basis.

  • How long is the flight from Saint John to Chicago O'Hare Intl Airport?

    Departing from Saint John to Chicago O'Hare Intl Airport will take you 5h 30m. The distance from Saint John to Chicago O'Hare Intl Airport is about 1802 km. This flight may include one or multiple stops.

  • 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.

See more FAQs

Travelling 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
Evanston
Des Plaines
Skokie
Downers Grove
Elk Grove Village
Racine
Naperville
Bolingbrook
Romeoville
Schaumburg

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 O'Hare Intl

See prices for flight routes from nearby airports that may be better suited for you.
Moncton to O'Hare Intl flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from St John to O'Hare Intl?

Deals for St John to O'Hare Intl flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from St John to O'Hare Intl?

Cheapflights simply makes it quick and affordable to book flights from St John to O'Hare Intl by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from St John to O'Hare Intl with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from St John to O'Hare Intl flexibly with Cheapflights today.

Can Cheapflights notify me if prices for flights from St John to O'Hare Intl become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to O'Hare Intl from St John today and book when prices fit your budget.

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.