Q: What is the cheapest month to fly to Illinois?

Currently, January is the cheapest month in which you can book a flight to Illinois . Flying to Illinois in July will prove the most costly. There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

Question 1

What is the cheapest month to fly to Illinois?

Accepted Answer

Currently, January is the cheapest month in which you can book a flight to Illinois. Flying to Illinois in July will prove the most costly. There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

Question 2

Can I find cheaper flights to Illinois if I am willing to have stopovers?

Accepted Answer

Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Illinois on Cheapflights that require 1 or 2 stops for potential cost savings.

Question 3

What is the best airline to fly to Illinois?

Accepted Answer

Based on reviews from Cheapflights users, Icelandair is rated the highest out of the airlines that fly to Illinois.

Question 4

What is the cheapest airport to fly to in Illinois?

Accepted Answer

Chicago Midway is currently the cheapest airport to fly to in Illinois. One-way flights to Chicago Midway typically cost £35, while return flights cost around £45.

Question 5

How much is a return flight to Illinois?

Accepted Answer

A return flight to Illinois will typically cost around £717, however they can be found for as little as £60.

Question 6

Where does the fastest flight to Illinois depart from?

Accepted Answer

For those looking to save time traveling to Illinois, London offers the quickest one-way flight (8 hours 25 minutes).

Question 7

Does Chicago O'Hare Intl have car hire?

Accepted Answer

Yes. Those touching down at Chicago O'Hare Intl can take advantage of the car hire services offered upon their arrival.

Question 8

Are there hotels close to Chicago O'Hare Intl?

Accepted Answer

Yes. Chicago O'Hare Intl has hotels nearby for those requiring accommodations. Hilton Chicago O'Hare Airport is the closest property to Chicago O'Hare Intl (0.0 mi away from Chicago O'Hare Intl).

Question 9

When is the cheapest time to fly to Illinois?

Accepted Answer

Users looking for the lowest fares to Illinois should consider flying on Thursday afternoons, when prices are typically cheapest. Budget-minded travellers will want to avoid Saturday afternoons, when prices are usually at their highest.

Question 10

What are the most popular airlines that fly to Illinois?

Accepted Answer

The most popular airlines flying from London to Illinois are British Airways, Finnair and Lufthansa.

Question 11

How long is the flight to Illinois?

Accepted Answer

On average, a flight from London to Illinois takes 16 hours 11 minutes. Flights to Illinois from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

Question 12

Weekly flight availability to Illinois

Accepted Answer

The most flights from London to Illinois are scheduled on a Monday (53 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (48 on average).

Question 13

What are the cheapest airlines that fly to Illinois?

Accepted Answer

The cheapest airlines flying from London to Illinois are Icelandair, Scandinavian Airlines and TAP AIR PORTUGAL.

Question 14

E

Accepted Answer

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.

Question 15

E

Accepted Answer

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).

Question 16

When is the best time to fly to Illinois?

Accepted Answer

Peak Season:

Winter is peak season in Illinois for skiing and snowmobiling. In summer many different festivals take place in Chicago’s parks and neighbourhoods almost every weekend, making it difficult to find a cheap Illinois flight.

Off Season:

The best month to book a cheap Illinois flight is September, which is also the mildest month. Autumn is visually the prettiest time to visit when the temperature is still mild and the foliage is changing. The quietest months in Chicago are from January to March but they can also be the coldest and windiest.

Return from	£410
One-way from	£314
Popular in	August
Cheapest in	February
Average price	£540
Good round-trip deal	£487 or less
Good one-way deal	£472 or less

Flights to Illinois in 2025

Find the latest flights to Illinois in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 7 June 2025.

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Browse one-way and return flights deals to Illinois on Cheapflights. Flight deals are based on user searches and were last updated on 7 June 2025

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Cheapest flights to Illinois
Explore the most affordable flight options available to Illinois. Find the lowest fares based on data from user searches, with prices last updated on 7 June 2025.

Explore the most affordable flight options available to Illinois. Find the lowest fares based on data from user searches, with prices last updated on 7 June 2025.

Best flights to Illinois
Discover carefully curated flight deals to Illinois that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 7 June 2025.

Discover carefully curated flight deals to Illinois that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 7 June 2025.

Direct flights to Illinois
Explore direct flight options to Illinois based on user searches, and compare prices and availability for your desired travel dates. Data last updated 7 June 2025.

Explore direct flight options to Illinois based on user searches, and compare prices and availability for your desired travel dates. Data last updated 7 June 2025.

Last-minute flights to Illinois
Discover last-minute flight deals to Illinois. Data last updated 7 June 2025 and is based on user searches.

Discover last-minute flight deals to Illinois. Data last updated 7 June 2025 and is based on user searches.

One-way flights to Illinois
Search for one-way flight options to Illinois. Find affordable one-way fares based on user searches. Data last updated 7 June 2025.

Search for one-way flight options to Illinois. Find affordable one-way fares based on user searches. Data last updated 7 June 2025.

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