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

For as low as £523, Aer Lingus can have you in Illinois from Glasgow Intl Airport in 16h 05m. 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 - Lambert-St Louis, Glasgow Intl - Chicago O'Hare Intl and Glasgow Intl - Chicago Midway.

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 Icelandair, Aer Lingus 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.

£285+ 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 21 August 2026.

Thu 17/909:05 -

1 stop16h 10m

Mon 21/921:00 -

1 stop17h 15m

Deal found 17/8£489

Wed 2/907:45 -

1 stop12h 15m

Wed 16/915:45 -

1 stop10h 55m

Deal found 19/8£495

Wed 4/1116:30 -

3 stops30h 50m

Mon 9/1118:30 -

1 stop9h 25m

Deal found 20/8£511

Mon 12/1020:40 -

2 stops28h 35m

Fri 6/1118:30 -

1 stop9h 25m

Deal found 16/8£517

Wed 4/1108:20 -

1 stop16h 05m

Mon 9/1115:55 -

1 stop17h 30m

Deal found 19/8£523

Fri 2/1014:20 -

1 stop9h 55m

Mon 19/1019:25 -

1 stop12h 00m

Deal found 16/8£534

Wed 16/911:00 -

1 stop14h 48m

Mon 28/919:25 -

1 stop12h 00m

Deal found 19/8£536

Wed 16/906:00 -

2 stops18h 19m

Wed 23/909:29 -

2 stops16h 56m

Deal found 17/8£641

Fri 2/1006:00 -

2 stops18h 19m

Mon 19/1018:44 -

2 stops15h 26m

Deal found 18/8£641

Mon 30/1115:25 -

2 stops34h 52m

Wed 9/1213:20 -

2 stops20h 30m

Deal found 17/8£663

Tue 6/1014:35 -

2 stops37h 39m

Tue 13/1010:59 -

2 stops17h 46m

Deal found 18/8£664

Tue 15/909:10 -

2 stops15h 09m

Mon 12/1018:44 -

2 stops15h 26m

Deal found 18/8£670

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 21 August 2026.

Fri 2/1014:20 -

1 stop9h 55m

Mon 19/1019:25 -

1 stop12h 00m

Deal found 17/8£535

Thu 17/911:00 -

1 stop14h 48m

Mon 21/909:30 -

2 stops28h 45m

Deal found 17/8£628

Wed 16/906:00 -

1 stop14h 30m

Wed 23/915:05 -

2 stops19h 05m

Deal found 19/8£637

Tue 17/1115:20 -

2 stops34h 59m

Mon 30/1112:58 -

2 stops19h 32m

Deal found 20/8£696

Thu 5/1106:35 -

2 stops17h 42m

Thu 12/1111:32 -

2 stops17h 18m

Deal found 18/8£725

Thu 17/909:40 -

2 stops17h 04m

Thu 24/913:54 -

2 stops14h 36m

Deal found 20/8£774

Fri 4/909:10 -

2 stops17h 32m

Fri 11/917:46 -

2 stops23h 24m

Deal found 18/8£791

Fri 4/914:00 -

1 stop15h 38m

Mon 14/916:50 -

1 stop11h 20m

Deal found 17/8£938

Wed 14/1014:20 -

1 stop13h 05m

Tue 3/1118:30 -

1 stop9h 25m

Deal found 16/8£567

Wed 23/914:20 -

1 stop9h 55m

Sun 27/919:25 -

1 stop12h 00m

Deal found 16/8£579

Wed 2/906:00 -

1 stop14h 30m

Wed 16/907:35 -

2 stops18h 50m

Deal found 19/8£637

Wed 16/906:00 -

1 stop14h 30m

Mon 28/907:35 -

2 stops18h 50m

Deal found 19/8£637

Thu 12/1108:40 -

2 stops16h 42m

Mon 16/1113:58 -

2 stops18h 32m

Deal found 15/8£771

Thu 15/1006:00 -

1 stop14h 15m

Wed 28/1017:29 -

2 stops18h 01m

Deal found 20/8£638

Tue 13/1006:00 -

2 stops21h 31m

Wed 4/1110:30 -

2 stops16h 00m

Deal found 16/8£641

Fri 2/1006:00 -

2 stops18h 19m

Mon 19/1012:27 -

2 stops13h 58m

Deal found 19/8£641

Fri 4/906:50 -

3 stops43h 32m

Mon 14/914:00 -

3 stops17h 25m

Deal found 17/8£975

Thu 17/906:00 -

2 stops18h 33m

Mon 28/919:13 -

2 stops14h 57m

Deal found 16/8£641

Mon 30/1112:05 -

3 stops33h 21m

Wed 9/1209:50 -

2 stops18h 40m

Deal found 17/8£978

Wed 16/906:00 -

2 stops18h 19m

Wed 23/909:59 -

2 stops16h 26m

Deal found 19/8£641

Wed 16/909:10 -

2 stops15h 09m

Mon 28/919:01 -

2 stops15h 09m

Deal found 19/8£641

Tue 13/1006:00 -

2 stops16h 47m

Thu 5/1113:27 -

2 stops17h 18m

Deal found 17/8£641

Thu 15/1006:00 -

2 stops18h 00m

Wed 28/1010:01 -

2 stops17h 29m

Deal found 20/8£755

Find flight deals from Glasgow Intl to Illinois

Round-trip from	£489
One-way from	£285
Popular in	July
Cheapest in	February
Average price	£654

17/9-21/9
2 total stops
33h 25m total
Glasgow to Illinois

Search Deals

28/10
3 total stops
39h 25m total
Glasgow to Illinois

Search Deals

Highest demand for flights based on searches. 19% potential increase in price (£108 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 August 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

Fastest return journey

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Fri 2/10

14:20-18:15

1 stop9h 55m

Chicago O'Hare Intl

Mon 19/10

19:25-13:25

1 stop12h 00m

£535

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Wed 14/10

14:20-21:25

1 stop13h 05m

Chicago O'Hare Intl

Tue 3/11

18:30-09:55

1 stop9h 25m

£567

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Wed 23/9

14:20-18:15

1 stop9h 55m

Chicago O'Hare Intl

Sun 27/9

19:25-13:25

1 stop12h 00m

£579

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Thu 17/9

11:00-19:48

1 stop14h 48m

Chicago O'Hare Intl

Mon 21/9

09:30-20:15

2 stops28h 45m

£628

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Wed 16/9

06:00-14:30

1 stop14h 30m

Chicago O'Hare Intl

Wed 23/9

15:05-16:10

2 stops19h 05m

£637

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Wed 2/9

06:00-14:30

1 stop14h 30m

Chicago O'Hare Intl

Wed 16/9

07:35-08:25

2 stops18h 50m

£637

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Wed 16/9

06:00-14:30

1 stop14h 30m

Chicago O'Hare Intl

Mon 28/9

07:35-08:25

2 stops18h 50m

£637

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Thu 15/10

06:00-14:15

1 stop14h 15m

Chicago O'Hare Intl

Wed 28/10

17:29-16:30

2 stops18h 01m

£638

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Tue 13/10

06:00-21:31

2 stops21h 31m

Chicago O'Hare Intl

Wed 4/11

10:30-08:30

2 stops16h 00m

£641

GlasgowChicago

GLA Glasgow Intl - MDW Chicago Midway

GLAMDW

Glasgow Intl

Fri 2/10

06:00-18:19

2 stops18h 19m

Chicago Midway

Mon 19/10

12:27-08:25

2 stops13h 58m

£641

Flights are sorted by cheapest return flights first.

Deals found on 19/8

Showing 1-10 of 31 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-STL

GLA-MDW

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-STL

GLA-MDW

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 £378). Flying from Glasgow Intl Airport to Illinois in July is currently the most expensive (average of £902). 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

7.4

Good

695 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

7.4

Good

695 reviews

Virgin Atlantic

7.4

Good

695 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

1,711 reviews

Virgin Atlantic

7.4

Good

695 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

6.9

Okay

730 reviews

Virgin Atlantic

7.4

Good

695 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

8,181 reviews

Virgin Atlantic

7.4

Good

695 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 £523, Aer Lingus can have you in Illinois from Glasgow Intl Airport in 16h 05m. 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 - Lambert-St Louis, Glasgow Intl - Chicago O'Hare Intl and Glasgow Intl - Chicago Midway.
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 £378). Flying from Glasgow Intl Airport to Illinois in July is currently the most expensive (average of £902). 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£443	Average£594	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Aer Lingus	Cheapest£576	Average£854	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 £285

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 28/10. 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 21 August 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 21 August 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 21 August 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 21 August 2026.

Last-minute flights from Glasgow Intl to IllinoisDiscover last-minute flight deals from Glasgow Intl to Illinois. Data last updated 21 August 2026 and is based on user searches.

Discover last-minute flight deals from Glasgow Intl to Illinois. Data last updated 21 August 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 21 August 2026.

Search for one-way flight options from Glasgow Intl to Illinois. Find affordable one-way fares based on user searches. Data last updated 21 August 2026.

Find flight deals from Glasgow Intl to Illinois

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Cheapflights Fare Finder

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

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Illinois by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to United States

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Search flights from Glasgow Intl to Illinois by cabin class

Find flights from Glasgow Intl to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Glasgow Intl and Illinois flights

Browse other Glasgow Intl and Illinois flight options. Last updated on 21 August 2026.

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Glasgow Intl to Illinois flights

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Top 2 airlines flying from Glasgow Intl to Illinois

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

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

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 21 August 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 21 August 2026.

Last-minute flights from Glasgow Intl to Illinois
Discover last-minute flight deals from Glasgow Intl to Illinois. Data last updated 21 August 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 21 August 2026.