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Cheap flights from Saint Peter to Illinois from £514

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
JER — ORD
29 Apr — 6 May1
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 24 April 2025.

Round-trip from

£514
British Airways
  • British Airways
  • 9/5-13/5
  • 2 total stops
  • 31h 10m total
  • Saint Peter to Illinois
Search Deals

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 24 April 2025.

Fri 9/507:00JER - ORD
1 stop16h 00mBritish Airways
Tue 13/519:10ORD - JER
1 stop15h 10mBritish Airways
Deal found 23/4£514
Sat 7/607:00JER - ORD
1 stop13h 45mMultiple Airlines
Sat 14/622:30ORD - JER
1 stop29h 10mMultiple Airlines
Deal found 23/4£702

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 24 April 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

Fri 9/5

07:00-17:00

1 stop16h 00m

Chicago O'Hare Intl

Tue 13/5

19:10-16:20

1 stop15h 10m

£514

Saint PeterChicago

JER - ORD

JERORD

Saint Peter Jersey

Sat 7/6

07:00-14:45

1 stop13h 45m

Chicago O'Hare Intl

Sat 14/6

22:30-09:40

1 stop29h 10m

£702

Flights are sorted by cheapest return flights first.

Deals found on 23/4

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

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 43.0 - 125.0 inches per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Illinois when rainfall is around 43.0 mm.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated 24 April 2025.
British Airways
6.6
Okay
6,805 reviews
Check prices

Boarding

6.8

Comfort

6.7

Crew

7.6

Overall

6.6

Food

6.3

Entertainment

6.4

Reviews

1 / 20
2.0
Mediocre

jon,Feb 2025

SAN - PHL

We were denied boarding because we bought the tickets with mbv y wife's married na m.j e, but her passport is still in her maiden name - and they ( including British Airlines) couldn't or wouldn't simply change the name on the ticket - costing us $1400
British Airways
6.6
Okay
6,805 reviews
British Airways
6.6
Okay
6,805 reviews
Check prices

Boarding

6.8

Comfort

6.7

Crew

7.6

Overall

6.6

Food

6.3

Entertainment

6.4

Reviews

1 / 20
2.0
Mediocre

jon,Feb 2025

SAN - PHL

We were denied boarding because we bought the tickets with mbv y wife's married na m.j e, but her passport is still in her maiden name - and they ( including British Airlines) couldn't or wouldn't simply change the name on the ticket - costing us $1400

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.

  • 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.

See more FAQs

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Alternative routes for Saint Peter to Illinois

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

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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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