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Cheap flights from Saint Peter to Illinois from £526

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/10. Fares are subject to change and may not be available on all flights or dates of travel.
JER — ORD
8 Sep — 15 Sep1
1 adult

Cheap flight deals from Saint Peter to Illinois

Keep the following information in mind while searching for Saint Peter to Illinois flight deals. Data was last updated 3 September 2025.

Round-trip from

£526
British Airways
  • British Airways
  • 16/10-23/10
  • 2 total stops
  • 22h 00m total
  • Saint Peter to Illinois
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Find flight deals from Saint Peter to Illinois

Cheapest flights from Saint Peter to Illinois
Explore the most affordable flight options available from Saint Peter to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 September 2025.

Thu 16/1010:35JER - ORD
1 stop11h 20mBritish Airways
Thu 23/1017:00ORD - JER
1 stop10h 40mBritish Airways
Deal found 1/9£526
Thu 16/1007:10JER - ORD
3 stops36h 04mMultiple Airlines
Thu 23/1010:27ORD - JER
3 stops26h 48mMultiple Airlines
Deal found 1/9£634
Sat 18/1007:00JER - ORD
1 stop16h 00mBritish Airways
Sat 25/1022:45ORD - JER
1 stop12h 25mBritish Airways
Deal found 3/9£716
Sat 18/1010:35JER - ORD
2 stops16h 48mMultiple Airlines
Sat 25/1017:05ORD - JER
2 stops15h 00mMultiple Airlines
Deal found 3/9£755

Cheapflights Fare Finder

 
Customise your flight search to find flights from Saint Peter 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, Cheapflights users made 858,174 searches. Data last updated 3 September 2025.
Use the filters below to find and compare flights from Saint Peter to Illinois that are best for you.

Fly from

Saint Peter

Fly to

Illinois

Route

Depart

Return

Price

Saint PeterChicago

JER - ORD

JERORD

Saint Peter Jersey

Thu 16/10

10:35-15:55

1 stop11h 20m

Chicago O'Hare Intl

Thu 23/10

17:00-09:40

1 stop10h 40m

£526

Saint PeterChicago

JER - ORD

JERORD

Saint Peter Jersey

Thu 16/10

07:10-13:14

3 stops36h 04m

Chicago O'Hare Intl

Thu 23/10

10:27-19:15

3 stops26h 48m

£634

Saint PeterChicago

JER - ORD

JERORD

Saint Peter Jersey

Sat 18/10

07:00-17:00

1 stop16h 00m

Chicago O'Hare Intl

Sat 25/10

22:45-16:10

1 stop12h 25m

£716

Saint PeterChicago

JER - ORD

JERORD

Saint Peter Jersey

Sat 18/10

10:35-21:23

2 stops16h 48m

Chicago O'Hare Intl

Sat 25/10

17:05-14:05

2 stops15h 00m

£755

Flights are sorted by cheapest return flights first.

Deals found on 1/9

Best time to book a flight from Saint Peter to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Saint Peter 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 Saint Peter to Illinois
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 Saint Peter to Illinois. 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 from for flights from Saint Peter to Illinois?

    If you book a flight to Illinois from Saint Peter, you will be flying from Jersey, which is the city’s only airport. Saint Peter Jersey (JER) is located 0.8 mi from the center of Saint Peter.

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

    A quick flight from Saint Peter to Illinois can take about 11h 20m. British Airways provides one of the quickest options available for as low as £526. There are 3945 mi between Saint Peter and Illinois.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Saint Peter to Illinois 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 Saint Peter to Illinois?

    Currently, January is the cheapest month in which you can book a flight from Saint Peter to Illinois (average of £595). Flying from Saint Peter to Illinois in July is currently the most expensive (average of £843). 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.

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

Need flexible booking options for your flight to Illinois from Saint Peter? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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