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

For as low as £657, Icelandair can have you in Illinois from Glasgow Intl Airport in 11h 25m. Airlines will cover a distance of 3663 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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.

£290+ 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

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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 12 November 2026.

Thu 10/1211:55 -

1 stop11h 25m

Fri 25/1218:30 -

1 stop9h 25m

Deal found 11/11£566

Tue 24/1109:30 -

1 stop14h 50m

Mon 30/1115:55 -

1 stop11h 10m

Deal found 9/11£579

Sat 5/1207:45 -

2 stops15h 35m

Sun 13/1218:30 -

2 stops18h 45m

Deal found 11/11£588

Tue 15/1209:30 -

2 stops36h 00m

Fri 15/118:30 -

1 stop9h 25m

Deal found 9/11£592

Tue 24/1122:05 -

2 stops32h 37m

Tue 1/1218:30 -

1 stop9h 25m

Deal found 9/11£603

Thu 24/1208:25 -

2 stops14h 55m

Thu 31/1218:30 -

2 stops18h 30m

Deal found 9/11£605

Sun 22/1107:25 -

1 stop12h 45m

Mon 30/1115:55 -

1 stop11h 10m

Deal found 9/11£609

Wed 25/1119:35 -

1 stop24h 35m

Mon 30/1115:55 -

1 stop13h 40m

Deal found 9/11£621

Mon 23/1122:40 -

2 stops22h 15m

Mon 30/1115:55 -

1 stop11h 10m

Deal found 9/11£636

Find flight deals from Glasgow Intl to Illinois

Round-trip from	£528
One-way from	£290
Popular in	July
Cheapest in	February
Average price	£620

Icelandair
24/1-9/2
3 total stops
49h 50m total
Glasgow to Illinois

Search Deals

25/4-31/12
2 total stops
43h 00m total
Glasgow to Illinois

Search Deals

Highest demand for flights based on searches. 18% potential increase in price (£112 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£20 potential savings vs. average return price).

Search Deals

Average for round-trip flights in November 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

Mon 25/1

07:50-17:20

2 stops15h 30m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£324

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Thu 24/12

09:50-15:30

3 stops35h 40m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£349

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Sun 24/1

11:40-18:45

1 stop13h 05m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£394

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Fri 8/1

21:50-17:20

2 stops25h 30m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£398

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Tue 1/12

07:55-15:30

2 stops37h 35m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£437

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Mon 10/5

21:25-14:00

1 stop22h 35m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£449

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Sun 25/4

13:30-17:35

1 stop34h 05m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£488

Fastest return journey

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Thu 24/12

08:25-14:10

1 stop11h 45m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£549

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Sun 28/2

08:50-18:20

2 stops39h 30m

Chicago O'Hare Intl

Wed 31/3

21:00-16:50

1 stop13h 50m

£563

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Mon 23/11

14:15-10:00

2 stops25h 45m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£575

Flights are sorted by cheapest return flights first.

Deals found on 10/11

Showing 1-10 of 17 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

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

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 £387). Flying from Glasgow Intl Airport to Illinois in July is currently the most expensive (average of £953). 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 Virgin Atlantic,Aer Lingus, andIcelandair 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.

Virgin Atlantic

7.5

Good

698 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

Virgin Atlantic

7.5

Good

698 reviews

Virgin Atlantic

7.5

Good

698 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

Aer Lingus

7.3

Good

1,883 reviews

Virgin Atlantic

7.5

Good

698 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

Icelandair

7.0

Good

766 reviews

Virgin Atlantic

7.5

Good

698 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

British Airways

6.7

Okay

8,285 reviews

Virgin Atlantic

7.5

Good

698 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

Related info for your journey

How long is the flight from Glasgow Intl Airport to Illinois?
For as low as £657, Icelandair can have you in Illinois from Glasgow Intl Airport in 11h 25m. Airlines will cover a distance of 3663 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
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 £387). Flying from Glasgow Intl Airport to Illinois in July is currently the most expensive (average of £953). 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£479	Average£659	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Aer Lingus	Cheapest£591	Average£910	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 £290

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 25/4. 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 12 November 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 12 November 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 12 November 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 12 November 2026.

Last-minute flights from Glasgow Intl to IllinoisDiscover last-minute flight deals from Glasgow Intl to Illinois. Data last updated 12 November 2026 and is based on user searches.

Discover last-minute flight deals from Glasgow Intl to Illinois. Data last updated 12 November 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 12 November 2026.

Search for one-way flight options from Glasgow Intl to Illinois. Find affordable one-way fares based on user searches. Data last updated 12 November 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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Search flights from Glasgow Intl to Illinois by cabin class

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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 12 November 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 12 November 2026.

Last-minute flights from Glasgow Intl to Illinois
Discover last-minute flight deals from Glasgow Intl to Illinois. Data last updated 12 November 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 12 November 2026.