Cheap flights from Saint John to Illinois from $353

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 6/19. 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
0 bags

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Cheap one-way flights

Enter your travel dates to find the best prices.
Air Canada Logo
5:00 am - 9:45 am
YSJ
-
ORD
6h 45m
1 stop
$353Air Canada
Fri, Jun 19
United Airlines Logo
4:35 pm - 9:00 am
YSJ
-
ORD
18h 25m
2 stops
$354United Airlines
Fri, Jun 19
Multiple Airlines Logo
10:45 am - 6:31 pm
YSJ
-
MDW
9h 46m
2 stops
$364Multiple Airlines
Fri, Jun 19
Multiple Airlines Logo
10:45 am - 11:04 am
YSJ
-
MDW
26h 19m
3 stops
$399Multiple Airlines
Fri, Jun 19
Multiple Airlines Logo
10:45 am - 8:03 am
YSJ
-
ORD
23h 18m
3 stops
$410Multiple Airlines
Fri, Jun 19

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 May 8, 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 one-way
Quickest one-way

Saint JohnChicago

YSJ - ORD

YSJORD

Saint John

Fri 6/19

5:00 am-9:45 am

1 stop6h 45m

$353

Saint JohnChicago

YSJ - ORD

YSJORD

Saint John

Fri 6/19

4:35 pm-9:00 am

2 stops18h 25m

$354

Saint JohnChicago

YSJ - MDW

YSJMDW

Saint John

Fri 6/19

10:45 am-6:31 pm

2 stops9h 46m

$364

Saint JohnChicago

YSJ - MDW

YSJMDW

Saint John

Fri 6/19

10:45 am-11:04 am

3 stops26h 19m

$399

Saint JohnChicago

YSJ - ORD

YSJORD

Saint John

Fri 6/19

10:45 am-8:03 am

3 stops23h 18m

$410

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

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

6h 39m

Direct flights

None
The fastest flight from Saint John to Illinois takes 6h 39m
There are no direct flights from Saint John to Illinois. There are no popular flight routes from Saint John to Illinois.

Frequently asked questions about flying 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
Sun 6/7
Sun 6/14

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