When did momondo last update prices for flights from Saint John Airport to Chicago O'Hare Intl Airport?

Prices for flights from Saint John Airport to Chicago O'Hare Intl Airport were last updated today.

How old do you have to be to fly from Saint John Airport to Chicago O'Hare Intl Airport?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Saint John Airport to Chicago O'Hare Intl Airport.

What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

The travel and health documents required for your trip to Chicago O'Hare Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Chicago O'Hare Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$343 Cheap Flights from Saint John to Chicago O'Hare Intl Airport in 2026/27

Find the cheapest flights from Saint John to Chicago

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:05 am - 3:00 pmYSJ Saint John-ORD Chicago O'Hare Intl

5h 55m1 stop Montreal Pierre Elliott Trudeau Intl

4:30 pm - 11:24 pmORD Chicago O'Hare Intl-YSJ Saint John

4h 54m1 stop Toronto Pearson Intl

$644Air Canada

Mon, Nov 23 - Fri, Nov 27

11:05 am - 7:58 pmYSJ Saint John-ORD Chicago O'Hare Intl

10h 53m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

8:45 am - 4:54 pmORD Chicago O'Hare Intl-YSJ Saint John

6h 09m1 stop Toronto Pearson Intl

$652Air Canada

Mon, Nov 23 - Fri, Nov 27

11:05 am - 7:58 pmYSJ Saint John-ORD Chicago O'Hare Intl

10h 53m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

8:50 am - 11:24 pmORD Chicago O'Hare Intl-YSJ Saint John

12h 34m2 stops Washington, D.C. Dulles Intl Toronto Pearson Intl

$679Air Canada

Mon, Nov 23 - Fri, Nov 27

11:05 am - 3:00 pmYSJ Saint John-ORD Chicago O'Hare Intl

5h 55m1 stop Montreal Pierre Elliott Trudeau Intl

8:45 am - 4:56 pmORD Chicago O'Hare Intl-YSJ Saint John

6h 11m1 stop Toronto Pearson Intl

$712Air Canada

Mon, Nov 23 - Fri, Nov 27

11:05 am - 3:00 pmYSJ Saint John-ORD Chicago O'Hare Intl

5h 55m1 stop Montreal Pierre Elliott Trudeau Intl

4:30 pm - 11:24 pmORD Chicago O'Hare Intl-YSJ Saint John

4h 54m1 stop Toronto Pearson Intl

$713Air Canada

Mon, Nov 23 - Fri, Nov 27

11:05 am - 3:00 pmYSJ Saint John-ORD Chicago O'Hare Intl

5h 55m1 stop Montreal Pierre Elliott Trudeau Intl

4:30 pm - 11:24 pmORD Chicago O'Hare Intl-YSJ Saint John

4h 54m1 stop Toronto Pearson Intl

$714Air Canada

Mon, Nov 23 - Fri, Nov 27

11:05 am - 7:58 pmYSJ Saint John-ORD Chicago O'Hare Intl

10h 53m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

8:45 am - 4:56 pmORD Chicago O'Hare Intl-YSJ Saint John

6h 11m1 stop Toronto Pearson Intl

$720Air Canada

Mon, Nov 23 - Fri, Nov 27

11:05 am - 7:58 pmYSJ Saint John-ORD Chicago O'Hare Intl

10h 53m2 stops Montreal Pierre Elliott Trudeau Intl Toronto Pearson Intl

8:45 am - 4:54 pmORD Chicago O'Hare Intl-YSJ Saint John

6h 09m1 stop Toronto Pearson Intl

$721Air Canada

Mon, Nov 23 - Fri, Nov 27

11:05 am - 2:52 pmYSJ Saint John-ORD Chicago O'Hare Intl

5h 47m1 stop Montreal Pierre Elliott Trudeau Intl

5:55 am - 11:24 pmORD Chicago O'Hare Intl-YSJ Saint John

15h 29m2 stops Washington, D.C. Dulles Intl Toronto Pearson Intl

$795United Airlines

Mon, Nov 9 - Mon, Nov 16

11:05 am - 8:39 pmYSJ Saint John-ORD Chicago O'Hare Intl

11h 34m2 stops Montreal Pierre Elliott Trudeau Intl Washington, D.C. Reagan-National

8:50 am - 11:24 pmORD Chicago O'Hare Intl-YSJ Saint John

12h 34m2 stops Washington, D.C. Dulles Intl Toronto Pearson Intl

$800United Airlines

Mon, Nov 9 - Mon, Nov 16

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Air Canada flights from Saint John to Chicago O'Hare Intl Airport

Our best Air Canada deals on Saint John to Chicago O'Hare Intl Airport flight tickets

Air Canada

Nov 23

YSJ11:05 amSaint John

5h 55m

1 stop

ORD3:00 pmChicago O'Hare Intl

Nov 27

ORD8:45 amChicago O'Hare Intl

6h 11m

1 stop

YSJ4:56 pmSaint John

$712

Air Canada

Nov 23

YSJ11:05 amSaint John

5h 55m

1 stop

ORD3:00 pmChicago O'Hare Intl

Nov 27

ORD4:30 pmChicago O'Hare Intl

4h 54m

1 stop

YSJ11:24 pmSaint John

$713

Air Canada

Nov 23

YSJ11:05 amSaint John

5h 55m

1 stop

ORD3:00 pmChicago O'Hare Intl

Nov 27

ORD4:30 pmChicago O'Hare Intl

4h 54m

1 stop

YSJ11:24 pmSaint John

$714

United Airlines flights from Saint John to Chicago O'Hare Intl Airport

Our best United Airlines deals on Saint John to Chicago O'Hare Intl Airport flight tickets

United Airlines

Nov 9

YSJ11:05 amSaint John

5h 47m

1 stop

ORD2:52 pmChicago O'Hare Intl

Nov 16

ORD5:55 amChicago O'Hare Intl

15h 29m

2 stops

YSJ11:24 pmSaint John

$795

United Airlines

Nov 9

YSJ11:05 amSaint John

11h 34m

2 stops

ORD8:39 pmChicago O'Hare Intl

Nov 16

ORD8:50 amChicago O'Hare Intl

12h 34m

2 stops

YSJ11:24 pmSaint John

$800

momondo Fare Finder

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

Quickest round-trip

Saint JohnChicago

YSJ Saint John - ORD Chicago O'Hare Intl

YSJORD

Saint John

Mon 11/23

11:05 am-3:00 pm

1 stop5h 55m

Chicago O'Hare Intl

Fri 11/27

4:30 pm-11:24 pm

1 stop4h 54m

$644

Saint JohnChicago

YSJ Saint John - ORD Chicago O'Hare Intl

YSJORD

Saint John

Mon 11/23

11:05 am-7:58 pm

2 stops10h 53m

Chicago O'Hare Intl

Fri 11/27

8:45 am-4:54 pm

1 stop6h 09m

$652

Saint JohnChicago

YSJ Saint John - ORD Chicago O'Hare Intl

YSJORD

Saint John

Mon 11/23

11:05 am-7:58 pm

2 stops10h 53m

Chicago O'Hare Intl

Fri 11/27

8:50 am-11:24 pm

2 stops12h 34m

$679

Saint JohnChicago

YSJ Saint John - ORD Chicago O'Hare Intl

YSJORD

Saint John

Mon 11/23

11:05 am-3:00 pm

1 stop5h 55m

Chicago O'Hare Intl

Fri 11/27

8:45 am-4:56 pm

1 stop6h 11m

$712

Saint JohnChicago

YSJ Saint John - ORD Chicago O'Hare Intl

YSJORD

Saint John

Mon 11/23

11:05 am-3:00 pm

1 stop5h 55m

Chicago O'Hare Intl

Fri 11/27

4:30 pm-11:24 pm

1 stop4h 54m

$713

Saint JohnChicago

YSJ Saint John - ORD Chicago O'Hare Intl

YSJORD

Saint John

Mon 11/23

11:05 am-3:00 pm

1 stop5h 55m

Chicago O'Hare Intl

Fri 11/27

4:30 pm-11:24 pm

1 stop4h 54m

$714

Saint JohnChicago

YSJ Saint John - ORD Chicago O'Hare Intl

YSJORD

Saint John

Mon 11/23

11:05 am-7:58 pm

2 stops10h 53m

Chicago O'Hare Intl

Fri 11/27

8:45 am-4:56 pm

1 stop6h 11m

$720

Saint JohnChicago

YSJ Saint John - ORD Chicago O'Hare Intl

YSJORD

Saint John

Mon 11/23

11:05 am-7:58 pm

2 stops10h 53m

Chicago O'Hare Intl

Fri 11/27

8:45 am-4:54 pm

1 stop6h 09m

$721

Saint JohnChicago

YSJ Saint John - ORD Chicago O'Hare Intl

YSJORD

Saint John

Mon 11/9

11:05 am-2:52 pm

1 stop5h 47m

Chicago O'Hare Intl

Mon 11/16

5:55 am-11:24 pm

2 stops15h 29m

$795

Saint JohnChicago

YSJ Saint John - ORD Chicago O'Hare Intl

YSJORD

Saint John

Mon 11/9

11:05 am-8:39 pm

2 stops11h 34m

Chicago O'Hare Intl

Mon 11/16

8:50 am-11:24 pm

2 stops12h 34m

$800

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 19 resultsSorted by cheapest first

How to get the cheapest flight ticket from Saint John to Chicago O'Hare Intl Airport

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 airline that flies from Saint John to Chicago O'Hare Intl?

Air Canada and United Airlines are the most popular carriers operating from Saint John to Chicago O'Hare Intl

When to book flights from Saint John to Chicago O'Hare Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Saint John to Chicago O'Hare Intl Airport according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Saint John to Chicago O'Hare Intl Airport (YSJ to ORD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Saint John to Chicago O'Hare Intl Airport

Best Price Found	$343
Fastest flight time	5h 55m
Direct flights	None

The best one-way flight to Chicago O'Hare Intl Airport from Saint John in the past 72 hours is $343. The best round-trip flight deal from Saint John to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $644.

The fastest flight from Saint John to Chicago O'Hare Intl Airport takes 5h 55m

There are no direct flights from Saint John to Chicago O'Hare Intl Airport. There are no popular flight routes from Saint John to Chicago O'Hare Intl Airport.

Search flight deals

Frequently asked questions about flying from Saint John to Chicago O'Hare Intl Airport

How far is Saint John to Chicago O'Hare Intl by plane?
There are 1111.2 mi between Saint John and Chicago O'Hare Intl. Flights usually cover this in 5h 55m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Saint John Airport to Chicago O'Hare Intl Airport?
Prices for flights from Saint John Airport to Chicago O'Hare Intl Airport were last updated today.
How old do you have to be to fly from Saint John Airport to Chicago O'Hare Intl Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Saint John Airport to Chicago O'Hare Intl Airport.
What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?
The travel and health documents required for your trip to Chicago O'Hare Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Chicago O'Hare Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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Why should I use momondo to find a flight deal from Saint John to Chicago?

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Can I find flights from Saint John to Chicago with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Chicago from Saint John with this policy.

How can momondo help me find flights from Saint John to Chicago?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Chicago from Saint John.

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

If you are simply researching potential flights to Chicago, momondo offers a useful price alert feature which will track prices for flights to Chicago from Saint John and alert you when they change.