Cheap flights from Saint John to Illinois from $289

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Saint John to Illinois departing on 4/30. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
Air Canada Logo
4:30 pm - 8:08 pm
YSJ
-
ORD
5h 38m
1 stop
Air Canada Logo
2:15 pm - 11:52 pm
ORD
-
YSJ
7h 37m
1 stop
$519Air Canada
Fri, May 1 - Fri, May 8
Air Canada Logo
5:35 am - 9:05 am
YSJ
-
ORD
5h 30m
1 stop
Air Canada Logo
8:20 pm - 11:27 am
ORD
-
YSJ
13h 07m
1 stop
$559Air Canada
Fri, Jun 5 - Sun, Jun 7
Air Canada Logo
12:20 pm - 4:59 pm
YSJ
-
ORD
6h 39m
1 stop
Air Canada Logo
8:20 pm - 11:27 am
ORD
-
YSJ
13h 07m
1 stop
$560Air Canada
Fri, Jun 5 - Sun, Jun 7
Air Canada Logo
5:35 am - 9:10 am
YSJ
-
ORD
5h 35m
1 stop
Air Canada Logo
12:50 pm - 11:15 am
ORD
-
YSJ
20h 25m
1 stop
$561Air Canada
Fri, Apr 17 - Mon, Apr 20
United Airlines Logo
4:30 pm - 8:08 pm
YSJ
-
ORD
5h 38m
1 stop
United Airlines Logo
9:35 pm - 3:40 pm
ORD
-
YSJ
16h 05m
2 stops
$567United Airlines
Fri, May 1 - Fri, May 8
United Airlines Logo
5:35 am - 9:10 am
YSJ
-
ORD
5h 35m
1 stop
United Airlines Logo
2:30 pm - 11:15 am
ORD
-
YSJ
18h 45m
2 stops
$614United Airlines
Fri, Apr 17 - Mon, Apr 20
United Airlines Logo
5:35 am - 11:43 pm
YSJ
-
ORD
20h 08m
2 stops
United Airlines Logo
2:30 pm - 11:15 am
ORD
-
YSJ
18h 45m
2 stops
$620United Airlines
Fri, Apr 17 - Mon, Apr 20
United Airlines Logo
5:35 am - 9:05 am
YSJ
-
ORD
5h 30m
1 stop
United Airlines Logo
6:30 am - 11:52 pm
ORD
-
YSJ
15h 22m
2 stops
$629United Airlines
Fri, Jun 5 - Sun, Jun 7
Air Canada Logo
12:20 pm - 11:30 pm
YSJ
-
ORD
13h 10m
2 stops
Air Canada Logo
9:55 am - 11:52 pm
ORD
-
YSJ
11h 57m
1 stop
$671Air Canada
Fri, Jun 5 - Sun, Jun 7
United Airlines Logo
12:20 pm - 6:18 pm
YSJ
-
ORD
7h 58m
1 stop
United Airlines Logo
6:00 am - 3:50 pm
ORD
-
YSJ
7h 50m
2 stops
$686United Airlines
Fri, Jun 5 - Sun, Jun 7

Air Canada flights from Saint John to Illinois

Our best Air Canada deals on Saint John to Illinois flight tickets
Air Canada
May 1
YSJ4:30 pmSaint John
5h 38m
1 stop
ORD8:08 pmChicago O'Hare Intl
May 8
ORD2:15 pmChicago O'Hare Intl
7h 37m
1 stop
YSJ11:52 pmSaint John
$519
Air Canada
Jun 5
YSJ5:35 amSaint John
5h 30m
1 stop
ORD9:05 amChicago O'Hare Intl
Jun 7
ORD8:20 pmChicago O'Hare Intl
13h 07m
1 stop
YSJ11:27 amSaint John
$559
Air Canada
Jun 5
YSJ12:20 pmSaint John
6h 39m
1 stop
ORD4:59 pmChicago O'Hare Intl
Jun 7
ORD8:20 pmChicago O'Hare Intl
13h 07m
1 stop
YSJ11:27 amSaint John
$560

United Airlines flights from Saint John to Illinois

Our best United Airlines deals on Saint John to Illinois flight tickets
United Airlines
May 1
YSJ4:30 pmSaint John
5h 38m
1 stop
ORD8:08 pmChicago O'Hare Intl
May 8
ORD9:35 pmChicago O'Hare Intl
16h 05m
2 stops
YSJ3:40 pmSaint John
$567
United Airlines
Jun 5
YSJ5:35 amSaint John
5h 30m
1 stop
ORD9:05 amChicago O'Hare Intl
Jun 7
ORD6:30 amChicago O'Hare Intl
15h 22m
2 stops
YSJ11:52 pmSaint John
$629
United Airlines
Jun 5
YSJ12:20 pmSaint John
7h 58m
1 stop
ORD6:18 pmChicago O'Hare Intl
Jun 7
ORD6:00 amChicago O'Hare Intl
7h 50m
2 stops
YSJ3:50 pmSaint John
$686

momondo Fare Finder

 
Customize your flight search to find flights from Saint 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, momondo users made 832,500 searches. Data last updated March 19, 2026.
Use the filters below to find and compare flights from Saint John to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

Saint JohnChicago

YSJ - ORD

YSJORD

Saint John

Fri 5/1

4:30 pm-8:08 pm

1 stop5h 38m

Chicago O'Hare Intl

Fri 5/8

2:15 pm-11:52 pm

1 stop7h 37m

$519

Saint JohnChicago

YSJ - ORD

YSJORD

Saint John

Fri 6/5

5:35 am-9:05 am

1 stop5h 30m

Chicago O'Hare Intl

Sun 6/7

8:20 pm-11:27 am

1 stop13h 07m

$559

Saint JohnChicago

YSJ - ORD

YSJORD

Saint John

Fri 6/5

12:20 pm-4:59 pm

1 stop6h 39m

Chicago O'Hare Intl

Sun 6/7

8:20 pm-11:27 am

1 stop13h 07m

$560

Saint JohnChicago

YSJ - ORD

YSJORD

Saint John

Fri 4/17

5:35 am-9:10 am

1 stop5h 35m

Chicago O'Hare Intl

Mon 4/20

12:50 pm-11:15 am

1 stop20h 25m

$561

Saint JohnChicago

YSJ - ORD

YSJORD

Saint John

Fri 5/1

4:30 pm-8:08 pm

1 stop5h 38m

Chicago O'Hare Intl

Fri 5/8

9:35 pm-3:40 pm

2 stops16h 05m

$567

Saint JohnChicago

YSJ - ORD

YSJORD

Saint John

Fri 4/17

5:35 am-9:10 am

1 stop5h 35m

Chicago O'Hare Intl

Mon 4/20

2:30 pm-11:15 am

2 stops18h 45m

$614

Saint JohnChicago

YSJ - ORD

YSJORD

Saint John

Fri 4/17

5:35 am-11:43 pm

2 stops20h 08m

Chicago O'Hare Intl

Mon 4/20

2:30 pm-11:15 am

2 stops18h 45m

$620

Saint JohnChicago

YSJ - ORD

YSJORD

Saint John

Fri 6/5

5:35 am-9:05 am

1 stop5h 30m

Chicago O'Hare Intl

Sun 6/7

6:30 am-11:52 pm

2 stops15h 22m

$629

Saint JohnChicago

YSJ - ORD

YSJORD

Saint John

Fri 6/5

12:20 pm-11:30 pm

2 stops13h 10m

Chicago O'Hare Intl

Sun 6/7

9:55 am-11:52 pm

1 stop11h 57m

$671

Saint JohnChicago

YSJ - ORD

YSJORD

Saint John

Fri 6/5

12:20 pm-6:18 pm

1 stop7h 58m

Chicago O'Hare Intl

Sun 6/7

6:00 am-3:50 pm

2 stops7h 50m

$686

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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See travel insights to Illinois from

How to get the cheapest flight ticket from Saint John to Illinois

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 Illinois?

Air Canada and United Airlines are the most popular carriers operating from Saint John to Illinois

Cheap Saint John to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Saint John to Illinois

Fastest flight time

5h 38m

Direct flights

None
The fastest flight from Saint John to Illinois takes 5h 38m
There are no direct flights from Saint John to Illinois. There are no popular flight routes from Saint John to Illinois.
  • When did momondo last update prices for flights from Saint John Airport to Illinois?

    Prices for flights from Saint John Airport to Illinois were last updated today.

  • How old do you have to be to fly from Saint John Airport to Illinois?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Saint John Airport to Illinois.

  • What documentation or ID do you need to fly to Illinois?

    The travel and health documents you'll need for your trip to Illinois may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Illinois. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Why use momondo?

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

It is quick and easy to find Saint John to Illinois flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Illinois that suits you.

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

All flight searches from Saint John to Illinois on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between Saint John and Illinois by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Of course. momondo tracks the price of Saint John to Illinois flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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1 adult
Sat 4/18
Sat 4/25

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