What is the cheapest time of day to fly from IL to JER?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Saint Peter as you normally would.

What airport do you fly into for flights to Saint Peter from Illinois?

For a flight from Illinois to Saint Peter, you will be flying into Jersey. Saint Peter Jersey (JER) is just 0.8 mi from the center of the city.

Can I find deals for flights from Illinois to Saint Peter that include hotel bookings?

Yes. In addition to deals on Illinois to Saint Peter flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Illinois to Saint Peter?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Saint Peter.

Can I find deals for business class flights from Illinois to Saint Peter?

Yes. Cheapflights offers flight deals from Illinois to Saint Peter by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£345+ Cheap Flights from Illinois to Saint Peter

Cheap flight deals from Illinois to Saint Peter

Enter your travel dates to find the best prices.

Cheapest

Best

One-way

Cheapest flights from Illinois to Saint Peter
Explore the most affordable flight options available from Illinois to Saint Peter. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 August 2026.

Sun 11/1017:00 -

1 stop10h 40m

Sun 18/1020:15 -

1 stop24h 45m

Deal found 28/8£623

Mon 12/1022:30 -

1 stop11h 45m

Mon 19/1017:10 -

2 stops32h 41m

Deal found 28/8£629

Fri 9/1019:05 -

1 stop15h 00m

Fri 16/1010:35 -

1 stop13h 40m

Deal found 25/8£632

Find flight deals from Illinois to Saint Peter

Round-trip from	£623
One-way from	£345

11/10-18/10
2 total stops
35h 25m total
Illinois to Saint Peter

Search Deals

British Airways
11/10
1 total stop
15h 20m total
Illinois to Saint Peter

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Illinois to Saint Peter that are best for you.

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Route

Depart

Return

Price

Cheapest return flight

ChicagoSaint Peter

ORD Chicago O'Hare Intl - JER Saint Peter Jersey

ORDJER

Chicago O'Hare Intl

Mon 12/10

18:05-16:15

1 stop16h 10m

Saint Peter Jersey

Mon 19/10

17:10-12:30

1 stop25h 20m

£625

ChicagoSaint Peter

ORD Chicago O'Hare Intl - JER Saint Peter Jersey

ORDJER

Chicago O'Hare Intl

Sun 11/10

17:00-09:40

1 stop10h 40m

Saint Peter Jersey

Sun 18/10

20:15-15:00

1 stop24h 45m

£625

Fastest return journey

ChicagoSaint Peter

ORD Chicago O'Hare Intl - JER Saint Peter Jersey

ORDJER

Chicago O'Hare Intl

Fri 9/10

19:05-16:05

1 stop15h 00m

Saint Peter Jersey

Fri 16/10

10:35-18:15

1 stop13h 40m

£632

Cheapest one-way

ChicagoSaint Peter

ORD Chicago O'Hare Intl - JER Saint Peter Jersey

ORDJER

Chicago O'Hare Intl

Sun 11/10

19:05-16:25

1 stop15h 20m

£345

Fastest single journey

ChicagoSaint Peter

ORD Chicago O'Hare Intl - JER Saint Peter Jersey

ORDJER

Chicago O'Hare Intl

Fri 9/10

19:05-16:05

1 stop15h 00m

£381

Flights are sorted by cheapest return flights first.

Deals found on 27/8

Sorted by cheapest first

Best time to book a flight from Illinois to Saint Peter

Have a flexible travel schedule? Discover the best time to fly to Saint Peter from Illinois with our price prediction graph.

ORD-JER

Estimated return 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.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Saint Peter

USIL-JER

ORD-JER

No data available for this route at this time. Please check back soon.

Related info for your journey

What airport do you fly into for flights to Saint Peter from Illinois?
For a flight from Illinois to Saint Peter, you will be flying into Jersey. Saint Peter Jersey (JER) is just 0.8 mi from the center of the city.
Can I find deals for flights from Illinois to Saint Peter that include hotel bookings?
Yes. In addition to deals on Illinois to Saint Peter flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Illinois to Saint Peter?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Saint Peter.
Can I find deals for business class flights from Illinois to Saint Peter?
Yes. Cheapflights offers flight deals from Illinois to Saint Peter 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

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How does Cheapflights help users find flights from Illinois to Saint Peter?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Saint Peter from Illinois today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Illinois to Saint Peter?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Illinois to Saint Peter for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Illinois to Saint Peter with no change fees?

Yes! Cheapflights helps users easily find flights from Illinois to Saint Peter with no change fees.

Can Cheapflights notify me if prices for flights from Illinois to Saint Peter become cheaper?

Not ready to book yet? You can track prices for flights from Illinois to Saint Peter on Cheapflights with our Price Alert feature and get notified when better prices are available.

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Cheap flights from Illinois to Saint Peter from £345

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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Illinois to Saint Peter

Cheapest flights from Illinois to Saint PeterExplore the most affordable flight options available from Illinois to Saint Peter. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 August 2026.

Explore the most affordable flight options available from Illinois to Saint Peter. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 August 2026.

Best flights from Illinois to Saint PeterDiscover carefully curated flight deals from Illinois to Saint Peter that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 29 August 2026.

Discover carefully curated flight deals from Illinois to Saint Peter that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 29 August 2026.

One-way flights from Illinois to Saint PeterSearch for one-way flight options from Illinois to Saint Peter. Find affordable one-way fares based on user searches. Data last updated 29 August 2026.

Search for one-way flight options from Illinois to Saint Peter. Find affordable one-way fares based on user searches. Data last updated 29 August 2026.

Find flight deals from Illinois to Saint Peter

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One-way from

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Use the filters below to find and compare flights from Illinois to Saint Peter that are best for you.

Best time to book a flight from Illinois to Saint Peter

Have a flexible travel schedule? Discover the best time to fly to Saint Peter from Illinois with our price prediction graph.

Cheapflights Insights

Related info for your journey

What airport do you fly into for flights to Saint Peter from Illinois?

Can I find deals for flights from Illinois to Saint Peter that include hotel bookings?

How can I find direct flights from Illinois to Saint Peter?

Can I find deals for business class flights from Illinois to Saint Peter?

Travelling to a place near Saint Peter?

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 Illinois to Saint Peter

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Saint Peter by adding a car hire and/or hotel booking to your travel itinerary.

Search flights from Illinois to Saint Peter by cabin class

Find flights from Illinois to Saint Peter, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Illinois and Saint Peter flights

Browse other Illinois and Saint Peter flight options. Last updated on 29 August 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Other flights to Saint Peter

Explore flights to Saint Peter departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 29 August 2026.

Fly with Cheapflights

How does Cheapflights help users find flights from Illinois to Saint Peter?

Why should you use Cheapflights to find cheap flight tickets from Illinois to Saint Peter?

Can Cheapflights find flights from Illinois to Saint Peter with no change fees?

Can Cheapflights notify me if prices for flights from Illinois to Saint Peter become cheaper?

100% Free

Book with Flexibility

Travel Smart

Cheapest flights from Illinois to Saint Peter
Explore the most affordable flight options available from Illinois to Saint Peter. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 August 2026.

Best flights from Illinois to Saint Peter
Discover carefully curated flight deals from Illinois to Saint Peter that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 29 August 2026.

One-way flights from Illinois to Saint Peter
Search for one-way flight options from Illinois to Saint Peter. Find affordable one-way fares based on user searches. Data last updated 29 August 2026.