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Cheap flights from Illinois to Saint Peter from £320

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/10. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — JER
9 Sep — 16 Sep1
1 adult

Cheap flight deals from Illinois to Saint Peter

Keep the following information in mind while searching for Illinois to Saint Peter flight deals. Data was last updated 4 September 2025.

Round-trip from

£320
British Airways
  • British Airways
  • 5/10-14/10
  • 3 total stops
  • 31h 43m total
  • Illinois to Saint Peter
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Find flight deals from Illinois to Saint Peter

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 4 September 2025.

Sun 5/1015:27ORD - JER
2 stops18h 58mBritish Airways
Tue 14/1007:05JER - ORD
1 stop12h 45mBritish Airways
Deal found 3/9£320
Sun 5/1005:05ORD - JER
3 stops30h 35mMultiple Airlines
Tue 14/1013:00JER - ORD
2 stops33h 10mMultiple Airlines
Deal found 3/9£673

Cheapflights Fare Finder

 
Customise your flight search to find flights from Illinois to Saint Peter 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 858,174 searches. Data last updated 4 September 2025.
Use the filters below to find and compare flights from Illinois to Saint Peter that are best for you.

Fly from

Illinois

Fly to

Saint Peter

Route

Depart

Return

Price

ChicagoSaint Peter

ORD - JER

ORDJER

Chicago O'Hare Intl

Sun 5/10

15:27-16:25

2 stops18h 58m

Saint Peter Jersey

Tue 14/10

07:05-13:50

1 stop12h 45m

£320

ChicagoSaint Peter

ORD - JER

ORDJER

Chicago O'Hare Intl

Fri 27/2

21:45-20:15

1 stop16h 30m

Saint Peter Jersey

Tue 3/3

10:35-13:50

1 stop33h 15m

£374

ChicagoSaint Peter

ORD - JER

ORDJER

Chicago O'Hare Intl

Sun 5/10

05:05-17:40

3 stops30h 35m

Saint Peter Jersey

Tue 14/10

13:00-16:10

2 stops33h 10m

£673

Flights are sorted by cheapest return flights first.

Deals found on 3/9

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

Related info for your journey

Find useful and relevant information for your journey from Illinois to Saint Peter. 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 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.

  • How long is the flight from Illinois to Saint Peter?

    There are many flights that can get you from Illinois to Saint Peter in 18h 58m. Fly via British Airways to get the fastest option. There are 3945 mi between Illinois and Saint Peter.

  • 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.

  • What is the cheapest month to book a flight from Illinois to Saint Peter?

    Currently, January is the cheapest month in which you can book a flight from Illinois to Saint Peter (average of £83). Flying from Illinois to Saint Peter in August is currently the most expensive (average of £130). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Saint Peter?

Book flights to Saint Peter if you plan to visit one of these locations
Saint Helier
Gorey

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

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