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

For as low as £658, Aer Lingus can have you in Illinois from Glasgow Intl Airport in 14h 59m. Airlines will cover a distance of 3667 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 - Lambert-St Louis 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 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.

£302+ 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 16 October 2026.

Thu 19/1113:15 -

1 stop11h 05m

Mon 23/1120:05 -

1 stop10h 40m

Deal found 14/10£485

Sun 29/1121:25 -

1 stop22h 45m

Sun 6/1220:05 -

1 stop29h 50m

Deal found 15/10£493

Sun 15/1108:25 -

1 stop11h 45m

Sun 22/1120:05 -

1 stop14h 40m

Deal found 15/10£500

Mon 30/1107:50 -

1 stop12h 20m

Mon 7/1215:55 -

1 stop11h 10m

Deal found 16/10£511

Mon 23/1112:05 -

1 stop12h 15m

Mon 30/1120:05 -

1 stop10h 40m

Deal found 16/10£521

Mon 7/1212:05 -

1 stop12h 15m

Mon 21/1219:55 -

2 stops34h 50m

Deal found 14/10£528

Mon 7/1208:25 -

1 stop15h 55m

Mon 21/1220:05 -

1 stop17h 00m

Deal found 14/10£535

Fri 11/1212:05 -

1 stop12h 15m

Sat 19/1220:05 -

1 stop10h 40m

Deal found 14/10£536

Wed 25/1109:55 -

1 stop14h 25m

Wed 2/1215:55 -

1 stop11h 05m

Deal found 11/10£554

Thu 19/1109:25 -

1 stop14h 55m

Tue 24/1115:55 -

1 stop11h 35m

Deal found 12/10£554

Tue 17/1106:00 -

2 stops16h 39m

Tue 24/1111:27 -

2 stops15h 03m

Deal found 13/10£652

Thu 19/1106:00 -

2 stops16h 39m

Mon 23/1113:31 -

2 stops20h 59m

Deal found 14/10£658

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 16 October 2026.

Fri 8/108:25 -

2 stops32h 35m

Sun 17/106:50 -

2 stops22h 45m

Deal found 15/10£533

Thu 21/118:00 -

1 stop31h 15m

Tue 26/121:00 -

1 stop16h 05m

Deal found 11/10£616

Wed 25/1105:40 -

1 stop14h 45m

Wed 2/1211:39 -

2 stops19h 06m

Deal found 11/10£654

Fri 19/313:15 -

1 stop11h 05m

Wed 31/315:45 -

1 stop19h 05m

Deal found 15/10£563

Fri 11/1212:05 -

2 stops23h 55m

Sat 19/1219:55 -

2 stops34h 50m

Deal found 14/10£622

Thu 19/1106:00 -

2 stops16h 18m

Mon 23/1107:05 -

2 stops19h 25m

Deal found 12/10£658

Mon 30/1115:00 -

2 stops31h 15m

Mon 7/1216:20 -

2 stops20h 10m

Deal found 16/10£628

Wed 25/1108:25 -

1 stop11h 45m

Wed 2/1220:05 -

1 stop10h 40m

Deal found 11/10£642

Thu 19/1109:05 -

2 stops14h 59m

Mon 23/1113:31 -

2 stops17h 14m

Deal found 11/10£658

Wed 25/1105:40 -

2 stops18h 24m

Wed 2/1209:37 -

2 stops16h 53m

Deal found 11/10£658

Sat 21/1106:00 -

2 stops20h 49m

Wed 25/1118:00 -

2 stops16h 30m

Deal found 12/10£663

Thu 4/205:40 -

2 stops18h 57m

Sat 13/213:00 -

2 stops14h 55m

Deal found 11/10£665

Mon 23/1106:00 -

2 stops18h 04m

Mon 30/1109:30 -

2 stops17h 00m

Deal found 16/10£679

Fri 20/1106:00 -

2 stops22h 54m

Tue 24/1113:31 -

2 stops17h 14m

Deal found 12/10£726

Tue 17/1109:05 -

2 stops14h 59m

Wed 25/1110:34 -

2 stops15h 56m

Deal found 12/10£742

Wed 18/1106:00 -

2 stops18h 04m

Thu 26/1112:05 -

2 stops14h 25m

Deal found 12/10£742

Tue 17/1109:05 -

2 stops14h 59m

Thu 26/1112:05 -

2 stops14h 25m

Deal found 12/10£742

Tue 17/1109:05 -

2 stops14h 59m

Tue 24/1113:31 -

2 stops17h 14m

Deal found 12/10£742

Sun 15/1106:00 -

2 stops16h 39m

Sun 22/1113:31 -

2 stops17h 14m

Deal found 15/10£801

Find flight deals from Glasgow Intl to Illinois

Round-trip from	£485
One-way from	£302
Popular in	July
Cheapest in	February
Average price	£721

Aer Lingus
19/11-23/11
2 total stops
21h 45m total
Glasgow to Illinois

Search Deals

16/1-31/12
3 total stops
47h 50m total
Glasgow to Illinois

Search Deals

Highest demand for flights based on searches. 20% potential increase in price (£122 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

Mon 2/11

20:25-15:30

3 stops49h 05m

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

Sun 15/11

21:25-17:20

3 stops49h 55m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£332

Fastest return journey

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Sat 16/1

07:45-17:20

2 stops15h 35m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£333

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Sat 19/12

20:50-14:10

1 stop23h 20m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£376

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Tue 27/10

22:05-18:20

3 stops49h 15m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£410

GlasgowChicago

GLA Glasgow Intl - MDW Chicago Midway

GLAMDW

Glasgow Intl

Sun 15/11

08:20-17:47

3 stops39h 27m

Chicago Midway

Wed 31/12

00:00-07:00

Nonstop0h 00m

£427

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Wed 27/1

05:45-19:15

1 stop19h 30m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£474

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Wed 27/1

05:45-19:44

2 stops19h 59m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£480

GlasgowChicago

GLA Glasgow Intl - ORD Chicago O'Hare Intl

GLAORD

Glasgow Intl

Tue 26/1

06:15-16:55

2 stops16h 40m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£481

GlasgowChicago

GLA Glasgow Intl - MDW Chicago Midway

GLAMDW

Glasgow Intl

Tue 26/1

05:40-16:50

2 stops17h 10m

Chicago Midway

Wed 31/12

00:00-07:00

Nonstop0h 00m

£490

Flights are sorted by cheapest return flights first.

Deals found on 13/10

Showing 1-10 of 37 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-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-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 £388). Flying from Glasgow Intl Airport to Illinois in July is currently the most expensive (average of £924). 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

1,838 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

1,838 reviews

Aer Lingus

7.3

Good

1,838 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Karin,Oct 2026

DUB - MCO

Icelandair

6.9

Okay

758 reviews

Aer Lingus

7.3

Good

1,838 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Karin,Oct 2026

DUB - MCO

British Airways

6.7

Okay

8,260 reviews

Aer Lingus

7.3

Good

1,838 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 £658, Aer Lingus can have you in Illinois from Glasgow Intl Airport in 14h 59m. Airlines will cover a distance of 3667 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 - Lambert-St Louis 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 £388). Flying from Glasgow Intl Airport to Illinois in July is currently the most expensive (average of £924). 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

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Direct flights to United States

Flights by cabin class

Other flight options

Popular flights

Top destinations

Alternative routes for Glasgow Intl to Illinois

Glasgow Intl to John F Kennedy Intl flights

Glasgow Intl to Newark flights

Glasgow Intl to LaGuardia flights

Glasgow Intl to Orlando flights

Glasgow Intl to Boston flights

Glasgow Intl to Miami flights

Glasgow Intl to Las Vegas flights

Glasgow Intl to Los Angeles flights

Glasgow Intl to Dulles Intl flights

Glasgow Intl to Dallas/Fort Worth flights

Glasgow Intl to Baltimore flights

Glasgow Intl to Reagan-National flights

Glasgow Intl to Seattle flights

Glasgow Intl to O'Hare Intl flights

Glasgow Intl to Tampa flights

Glasgow Intl to Nashville flights

Glasgow Intl to Cleveland flights

Glasgow Intl to Ontario flights

Glasgow Intl to San Diego flights

Glasgow Intl to Hobby flights

Glasgow Intl to Love Field flights

Glasgow Intl to Minneapolis flights

Glasgow Intl to New Orleans flights

Glasgow Intl to Sky Harbor Intl flights

Glasgow Intl to St. Louis flights

Glasgow Intl to Austin flights

Glasgow Intl to Syracuse flights

Glasgow Intl to Midway flights

Glasgow Intl to San Francisco flights

Glasgow Intl to Cincinnati flights

Glasgow Intl to Portland flights

Glasgow Intl to Atlanta flights

Glasgow Intl to George Bush Intcntl flights

Glasgow Intl to Denver flights

Glasgow Intl to Philadelphia flights

Glasgow Intl to Fort Lauderdale flights

Glasgow Intl to Fort Myers flights

Glasgow Intl to Detroit flights

Glasgow Intl to Memphis flights

Glasgow Intl to Norfolk flights

Glasgow Intl to Pittsburgh flights

Glasgow Intl to Sacramento flights

Glasgow Intl to Salt Lake City flights

Glasgow Intl to Raleigh flights

Glasgow Intl to Charlotte flights

Glasgow Intl to Grand Rapids flights

Glasgow Intl to Kansas City flights

Glasgow Intl to Charleston flights

Glasgow Intl to Myrtle Beach flights

Top 2 airlines flying from Glasgow Intl to Illinois

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest£481	Average£662	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
Aer Lingus	Cheapest£593	Average£911	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights

Fly with Cheapflights

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

Cheap flights from Glasgow Intl Airport to Illinois from £302

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 16/1. 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 16 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 16 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 16 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 16 October 2026.

Last-minute flights from Glasgow Intl to IllinoisDiscover last-minute flight deals from Glasgow Intl to Illinois. Data last updated 16 October 2026 and is based on user searches.

Discover last-minute flight deals from Glasgow Intl to Illinois. Data last updated 16 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 16 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 16 October 2026.

Find flight deals from Glasgow Intl to Illinois

Round-trip from

One-way from

Popular in

Cheapest in

Average price

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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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

Book a non-stop flight to one of these other cities located in United States.

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 16 October 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Glasgow Intl to Illinois flights

Consider these flights travelling from Glasgow Intl to Illinois.

Top 2 airlines flying from Glasgow Intl to Illinois

Fly with Cheapflights

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

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

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?

100% Free

Book with Flexibility

Travel Smart

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 16 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 16 October 2026.

Last-minute flights from Glasgow Intl to Illinois
Discover last-minute flight deals from Glasgow Intl to Illinois. Data last updated 16 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 16 October 2026.