How long is the flight from Glasgow Intl Airport to Illinois?

For as low as £659, Icelandair can have you in Illinois from Glasgow Intl Airport in 11h 45m. Airlines will cover a distance of 3663 mi.

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.

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).

What are the most popular routes from Glasgow Intl Airport to Illinois?

The most popular flight routes from Glasgow Intl Airport to Illinois are Glasgow Intl - Chicago O'Hare Intl, Glasgow Intl - Chicago Midway and Glasgow Intl - Lambert-St Louis.

What are the most popular airlines that fly from Glasgow Intl Airport to Illinois?

When booking a flight from Glasgow Intl Airport to Illinois, you may want to consider flying on Aer Lingus, Icelandair or British Airways as they are the most popular for this route.

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

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

Can I find deals for flights from Glasgow Intl to Illinois that include hotel bookings?

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

How can I find direct flights from Glasgow Intl to Illinois?

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

Can I find deals for business class flights from Glasgow Intl to Illinois?

Yes. Cheapflights offers flight deals from Glasgow Intl 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.

£307+ Cheap Flights from Glasgow Intl Airport to Illinois

Cheap flight deals from Glasgow Intl to Illinois

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from Glasgow Intl to Illinois
Explore the most affordable flight options available from Glasgow Intl to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Tue 15/1206:30 -

2 stops39h 00m

Tue 12/118:30 -

1 stop9h 25m

Deal found 28/10£579

Tue 8/1208:25 -

2 stops14h 55m

Tue 15/1218:30 -

2 stops18h 35m

Deal found 26/10£581

Tue 22/1222:45 -

1 stop21h 25m

Mon 28/1215:55 -

1 stop11h 10m

Deal found 29/10£600

Mon 14/1207:50 -

1 stop16h 30m

Mon 21/1220:05 -

1 stop20h 15m

Deal found 30/10£601

Tue 15/1211:55 -

1 stop11h 25m

Tue 12/118:30 -

1 stop9h 25m

Deal found 28/10£616

Sun 29/1122:25 -

2 stops22h 00m

Sun 6/1216:25 -

2 stops21h 50m

Deal found 29/10£648

Thu 5/1111:55 -

1 stop11h 25m

Mon 9/1118:30 -

1 stop9h 25m

Deal found 28/10£657

Find flight deals from Glasgow Intl to Illinois

Round-trip from	£579
One-way from	£307
Popular in	July
Cheapest in	February
Average price	£717

Icelandair
15/12-12/1
3 total stops
48h 25m total
Glasgow to Illinois

Search Deals

11/12-31/12
3 total stops
54h 55m total
Glasgow to Illinois

Search Deals

Highest demand for flights based on searches. 20% potential increase in price (£124 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£21 potential savings vs. average return price).

Search Deals

Average for round-trip flights in October 2026

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Glasgow Intl Airport to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Fri 11/12

14:35-15:30

3 stops54h 55m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£307

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Sat 16/1

21:05-19:15

3 stops52h 10m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£310

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Thu 22/4

09:05-18:15

3 stops39h 10m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£331

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Tue 6/4

15:50-16:00

2 stops30h 10m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£343

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Wed 4/11

20:45-08:46

2 stops42h 01m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£456

Fastest return journey

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Thu 31/12

08:25-14:10

1 stop11h 45m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£548

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Wed 4/11

12:05-18:20

1 stop12h 15m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£585

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Mon 14/12

07:50-18:20

1 stop16h 30m

Chicago O'Hare Intl

Mon 21/12

20:05-22:20

1 stop20h 15m

£601

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Sun 29/11

22:25-14:25

2 stops22h 00m

Chicago O'Hare Intl

Sun 6/12

16:25-20:15

2 stops21h 50m

£648

GlasgowSpringfield

GLA Glasgow Intl - SPI Springfield Capital

GLASPI

Glasgow Intl

Tue 30/3

13:05-00:38

2 stops41h 33m

Springfield Capital

Wed 31/12

00:00-07:00

Nonstop0h 00m

£658

Flights are sorted by cheapest return flights first.

Deals found on 28/10

Showing 1-10 of 22 resultsSorted by cheapest first

Best time to book a flight from Glasgow Intl to Illinois

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

GLA-ORD

GLA-SPI

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 Glasgow Intl Airport to Illinois

GLA-USIL

GLA-ORD

GLA-SPI

What is the cheapest month to book a flight from Glasgow Intl Airport to Illinois?

Currently, February is the cheapest month in which you can book a flight from Glasgow Intl Airport to Illinois (average of £386). Flying from Glasgow Intl Airport to Illinois in July is currently the most expensive (average of £918). 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.

Reviews of airlines servicing Illinois

See what other customers who have flown with Aer Lingus,Icelandair, andBritish Airways from Glasgow Intl Airport to Illinois have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Aer Lingus

7.3

Good

1,869 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Karin,Oct 2026

DUB - MCO

Food could have been better. The chicken and rice dish was excellent. Not sure about the salads. And the pizza was horrible was lukewarm and had way too much dough. Staff was mixed. Some staff didn’t seem like they wanted to be there.

Aer Lingus

7.3

Good

1,869 reviews

Aer Lingus

7.3

Good

1,869 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Karin,Oct 2026

DUB - MCO

Icelandair

6.9

Okay

764 reviews

Aer Lingus

7.3

Good

1,869 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Karin,Oct 2026

DUB - MCO

British Airways

6.7

Okay

8,277 reviews

Aer Lingus

7.3

Good

1,869 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Karin,Oct 2026

DUB - MCO

Related info for your journey

How long is the flight from Glasgow Intl Airport to Illinois?
For as low as £659, Icelandair can have you in Illinois from Glasgow Intl Airport in 11h 45m. Airlines will cover a distance of 3663 mi.
What are the most popular routes from Glasgow Intl Airport to Illinois?
The most popular flight routes from Glasgow Intl Airport to Illinois are Glasgow Intl - Chicago O'Hare Intl, Glasgow Intl - Chicago Midway and Glasgow Intl - Lambert-St Louis.
Can I find deals for flights from Glasgow Intl to Illinois that include hotel bookings?
Yes. In addition to deals on Glasgow Intl to Illinois flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Glasgow Intl to Illinois?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Glasgow Intl to Illinois.
Can I find deals for business class flights from Glasgow Intl to Illinois?
Yes. Cheapflights offers flight deals from Glasgow Intl 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 Glasgow Intl Airport to Illinois?
Currently, February is the cheapest month in which you can book a flight from Glasgow Intl Airport to Illinois (average of £386). Flying from Glasgow Intl Airport to Illinois in July is currently the most expensive (average of £918). 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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Top 2 airlines flying from Glasgow Intl to Illinois

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest£478	Average£658	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Aer Lingus	Cheapest£589	Average£906	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights

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How does Cheapflights help users find flights from Glasgow Intl to Illinois?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Glasgow Intl to Illinois. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from Glasgow Intl to Illinois?

Cheapflights simply makes it quick and affordable to book flights from Glasgow Intl to Illinois by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Glasgow Intl to Illinois with no change fees?

Certainly. Search results for flights to Illinois from Glasgow Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Glasgow Intl to Illinois become cheaper?

Of course! You can now track prices for flights from Glasgow Intl to Illinois and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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Cheap flights from Glasgow Intl Airport to Illinois from £307

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/12. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Glasgow Intl to Illinois

Cheapest flights from Glasgow Intl to IllinoisExplore the most affordable flight options available from Glasgow Intl to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Explore the most affordable flight options available from Glasgow Intl to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Best flights from Glasgow Intl to IllinoisDiscover carefully curated flight deals from Glasgow Intl to Illinois that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Discover carefully curated flight deals from Glasgow Intl to Illinois that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Last-minute flights from Glasgow Intl to IllinoisDiscover last-minute flight deals from Glasgow Intl to Illinois. Data last updated 30 October 2026 and is based on user searches.

Discover last-minute flight deals from Glasgow Intl to Illinois. Data last updated 30 October 2026 and is based on user searches.

One-way flights from Glasgow Intl to IllinoisSearch for one-way flight options from Glasgow Intl to Illinois. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.

Search for one-way flight options from Glasgow Intl to Illinois. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.

Find flight deals from Glasgow Intl to Illinois

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Use the filters below to find and compare flights from Glasgow Intl Airport to Illinois that are best for you.

Best time to book a flight from Glasgow Intl to Illinois

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

Cheapflights Insights

What is the cheapest month to book a flight from Glasgow Intl Airport to Illinois?

Reviews of airlines servicing Illinois

Related info for your journey

How long is the flight from Glasgow Intl Airport to Illinois?

What are the most popular routes from Glasgow Intl Airport to Illinois?

Can I find deals for flights from Glasgow Intl to Illinois that include hotel bookings?

How can I find direct flights from Glasgow Intl to Illinois?

Can I find deals for business class flights from Glasgow Intl to Illinois?

What is the cheapest month to book a flight from Glasgow Intl Airport to Illinois?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Glasgow Intl to Illinois

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Glasgow Intl and Illinois flights

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Top 2 airlines flying from Glasgow Intl to Illinois

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Can Cheapflights notify me if prices for flights from Glasgow Intl to Illinois become cheaper?

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Cheapest flights from Glasgow Intl to Illinois
Explore the most affordable flight options available from Glasgow Intl to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 30 October 2026.

Best flights from Glasgow Intl to Illinois
Discover carefully curated flight deals from Glasgow Intl to Illinois that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 30 October 2026.

Last-minute flights from Glasgow Intl to Illinois
Discover last-minute flight deals from Glasgow Intl to Illinois. Data last updated 30 October 2026 and is based on user searches.

One-way flights from Glasgow Intl to Illinois
Search for one-way flight options from Glasgow Intl to Illinois. Find affordable one-way fares based on user searches. Data last updated 30 October 2026.