What are the cheapest airlines to fly from Glasgow Intl Airport to Illinois one-way?

The cheapet airlines for a one-way flight from Glasgow Intl Airport to Illinois are Aer Lingus (£503), Icelandair (£843), and British Airways (£860).

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 Air France, British Airways or Aer Lingus as they are the most popular for this route.

How far in advance should I book a flight from Glasgow Intl Airport to Illinois?

Travelers have found it’s best to book a flight 51 days in advance to save up to 117% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 51 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Glasgow Intl Airport to Illinois 1-2 weeks in advance for as low as £387, or £732 for flights within the next 24 hours.

What is the cheapest month to fly from Glasgow Intl Airport to Illinois?

The best pricing can be found in the month of February. Prices to Illinois from Glasgow Intl Airport average £581. You can even find prices in February for less than £581, as users have found deals to Illinois from as low as £366. The month of July appears to be one of the more expensive times to travel to Illinois from Glasgow Intl Airport. Flying in the targeted month can save you up to 33%.

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.

£233+ Flights from Glasgow Intl Airport to Illinois

Cheap flight deals from Glasgow Intl to Illinois

Round-trip from	£452
One-way from	£233
Popular in	July
Cheapest in	February
Average price	£586

Icelandair
16/5-2/9
3 total stops
50h 12m total
Glasgow to Illinois

Search Deals

3/6
3 total stops
29h 32m total
Glasgow to Illinois

Search Deals

Highest demand for flights based on searches. 17% potential increase in price (£95 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£14 potential savings vs. average return price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

Find flight deals from Glasgow Intl to Illinois

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 18 April 2025.

Fri 16/519:40GLA - ORD

2 stops41h 02mMultiple Airlines

Tue 2/922:15ORD - GLA

1 stop9h 10mMultiple Airlines

Deal found 17/4£452

Thu 8/510:00GLA - ORD

1 stop11h 55mBritish Airways

Sun 11/519:15ORD - GLA

1 stop12h 00mBritish Airways

Deal found 18/4£495

Thu 8/508:35GLA - ORD

1 stop13h 20mAmerican Airlines

Sun 11/519:15ORD - GLA

1 stop13h 25mAmerican Airlines

Deal found 17/4£510

Tue 26/814:20GLA - ORD

1 stop9h 55mIcelandair

Tue 9/919:25ORD - GLA

1 stop12h 00mIcelandair

Deal found 17/4£513

Fri 16/508:55GLA - ORD

1 stop11h 15mDelta

Thu 4/915:50ORD - GLA

2 stops18h 20mDelta

Deal found 18/4£560

Fri 16/506:00GLA - MDW

2 stops18h 45mDelta

Thu 4/917:59MDW - GLA

2 stops16h 11mDelta

Deal found 17/4£564

Tue 26/806:00GLA - ORD

2 stops16h 34mAir France

Tue 9/916:20ORD - GLA

1 stop24h 50mAir France

Deal found 17/4£568

Fri 30/508:55GLA - ORD

1 stop11h 15mKLM

Fri 4/716:20ORD - GLA

1 stop10h 05mKLM

Deal found 17/4£615

Thu 29/507:00GLA - ORD

1 stop15h 45mFinnair

Thu 3/713:28ORD - GLA

2 stops26h 57mFinnair

Deal found 17/4£671

Sat 17/506:00GLA - MDW

2 stops16h 21mKLM

Sat 6/913:05MDW - GLA

2 stops14h 45mKLM

Deal found 18/4£674

Thu 15/506:10GLA - ORD

2 stops18h 05mLufthansa

Mon 8/921:40ORD - GLA

2 stops19h 10mLufthansa

Deal found 17/4£719

Mon 2/615:25GLA - ORD

2 stops32h 09mIberia

Sun 6/722:35ORD - GLA

1 stop18h 40mIberia

Deal found 17/4£736

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 18 April 2025.

Fri 16/519:40GLA - ORD

2 stops41h 02mMultiple Airlines

Tue 2/922:15ORD - GLA

1 stop9h 10mMultiple Airlines

Deal found 17/4£452

Thu 8/510:00GLA - ORD

1 stop11h 55mBritish Airways

Sun 11/519:15ORD - GLA

1 stop12h 00mBritish Airways

Deal found 18/4£495

Thu 8/508:35GLA - ORD

1 stop13h 20mAmerican Airlines

Sun 11/519:15ORD - GLA

1 stop13h 25mAmerican Airlines

Deal found 17/4£510

Tue 26/814:20GLA - ORD

1 stop9h 55mIcelandair

Tue 9/919:25ORD - GLA

1 stop12h 00mIcelandair

Deal found 17/4£513

Fri 16/508:55GLA - ORD

1 stop11h 15mDelta

Thu 4/915:50ORD - GLA

2 stops18h 20mDelta

Deal found 18/4£560

Tue 26/806:00GLA - ORD

2 stops16h 34mAir France

Tue 9/916:20ORD - GLA

1 stop24h 50mAir France

Deal found 17/4£568

Fri 30/508:55GLA - ORD

1 stop11h 15mKLM

Fri 4/716:20ORD - GLA

1 stop10h 05mKLM

Deal found 17/4£615

Thu 29/507:00GLA - ORD

1 stop15h 45mFinnair

Thu 3/713:28ORD - GLA

2 stops26h 57mFinnair

Deal found 17/4£671

Thu 15/506:10GLA - ORD

2 stops18h 05mLufthansa

Mon 8/921:40ORD - GLA

2 stops19h 10mLufthansa

Deal found 17/4£719

Mon 2/615:25GLA - ORD

2 stops32h 09mIberia

Sun 6/722:35ORD - GLA

1 stop18h 40mIberia

Deal found 17/4£736

Sat 17/508:35GLA - ORD

1 stop16h 25mAer Lingus

Wed 3/922:20ORD - GLA

1 stop12h 45mAer Lingus

Deal found 17/4£800

Fri 16/506:00GLA - MDW

2 stops18h 45mDelta

Thu 4/917:59MDW - GLA

2 stops16h 11mDelta

Deal found 17/4£564

Last-minute flights from Glasgow Intl to Illinois
Discover last-minute flight deals from Glasgow Intl to Illinois. Data last updated 18 April 2025 and is based on user searches.

Thu 8/510:00GLA - ORD

1 stop11h 55mBritish Airways

Sun 11/519:15ORD - GLA

1 stop12h 00mBritish Airways

Deal found 18/4£495

Thu 8/508:35GLA - ORD

1 stop13h 20mAmerican Airlines

Sun 11/519:15ORD - GLA

1 stop13h 25mAmerican Airlines

Deal found 17/4£510

Thu 15/506:10GLA - ORD

2 stops18h 05mLufthansa

Mon 8/921:40ORD - GLA

2 stops19h 10mLufthansa

Deal found 17/4£719

Fri 16/519:40GLA - ORD

2 stops41h 02mMultiple Airlines

Tue 2/922:15ORD - GLA

1 stop9h 10mMultiple Airlines

Deal found 17/4£452

Fri 16/514:25GLA - ORD

1 stop9h 50mIcelandair

Tue 9/919:25ORD - GLA

1 stop12h 00mIcelandair

Deal found 18/4£513

Fri 16/508:55GLA - ORD

1 stop11h 15mDelta

Thu 4/915:50ORD - GLA

2 stops18h 20mDelta

Deal found 18/4£560

Fri 16/506:00GLA - MDW

2 stops18h 45mDelta

Thu 4/917:59MDW - GLA

2 stops16h 11mDelta

Deal found 17/4£564

Sat 17/506:00GLA - MDW

2 stops16h 21mKLM

Sat 6/913:05MDW - GLA

2 stops14h 45mKLM

Deal found 18/4£674

Sat 17/508:35GLA - ORD

1 stop16h 25mAer Lingus

Wed 3/922:20ORD - GLA

1 stop12h 45mAer Lingus

Deal found 17/4£800

Thu 29/507:00GLA - ORD

1 stop15h 45mFinnair

Mon 7/717:45ORD - GLA

1 stop13h 05mFinnair

Deal found 17/4£648

Fri 30/508:55GLA - ORD

1 stop11h 15mKLM

Sun 6/716:20ORD - GLA

1 stop10h 05mKLM

Deal found 17/4£615

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 18 April 2025.

Tue 3/607:00GLA - ORD

3 stops29h 32mMultiple Airlines

Deal found 17/4£233

Tue 3/620:55GLA - MDW

2 stops53h 22mMultiple Airlines

Deal found 17/4£304

Thu 14/814:20GLA - STL

3 stops48h 51mMultiple Airlines

Deal found 16/4£452

Sat 14/608:35GLA - ORD

1 stop11h 25mAer Lingus

Deal found 17/4£503

Mon 21/714:20GLA - ORD

1 stop9h 55mIcelandair

Deal found 17/4£843

Tue 22/705:50GLA - ORD

2 stops16h 02mBritish Airways

Deal found 17/4£860

Fri 30/506:10GLA - ORD

2 stops18h 25mLufthansa

Deal found 17/4£1,329

Fri 30/508:55GLA - MDW

2 stops14h 50mKLM

Deal found 17/4£2,615

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

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Fri 16/5

19:40-06:42

2 stops41h 02m

Chicago O'Hare Intl

Tue 2/9

22:15-13:25

1 stop9h 10m

£452

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Thu 8/5

10:00-15:55

1 stop11h 55m

Chicago O'Hare Intl

Sun 11/5

19:15-13:15

1 stop12h 00m

£495

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Thu 8/5

08:35-15:55

1 stop13h 20m

Chicago O'Hare Intl

Sun 11/5

19:15-14:40

1 stop13h 25m

£510

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Tue 26/8

14:20-18:15

1 stop9h 55m

Chicago O'Hare Intl

Tue 9/9

19:25-13:25

1 stop12h 00m

£513

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Fri 16/5

08:55-14:10

1 stop11h 15m

Chicago O'Hare Intl

Thu 4/9

15:50-16:10

2 stops18h 20m

£560

GlasgowChicago

GLA - MDW

GLAMDW

Glasgow Intl

Fri 16/5

06:00-18:45

2 stops18h 45m

Chicago Midway

Thu 4/9

17:59-16:10

2 stops16h 11m

£564

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Tue 26/8

06:00-16:34

2 stops16h 34m

Chicago O'Hare Intl

Tue 9/9

16:20-23:10

1 stop24h 50m

£568

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Fri 30/5

08:55-14:10

1 stop11h 15m

Chicago O'Hare Intl

Fri 4/7

16:20-08:25

1 stop10h 05m

£615

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Thu 29/5

07:00-16:45

1 stop15h 45m

Chicago O'Hare Intl

Thu 3/7

13:28-22:25

2 stops26h 57m

£671

GlasgowChicago

GLA - MDW

GLAMDW

Glasgow Intl

Sat 17/5

06:00-16:21

2 stops16h 21m

Chicago Midway

Sat 6/9

13:05-09:50

2 stops14h 45m

£674

Flights are sorted by cheapest return flights first.

Deals found on 17/4

Showing 1-10 of 21 results

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.

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

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

Currently, January is the cheapest month in which you can book a flight from Glasgow Intl Airport to Illinois (average of £595). Flying from Glasgow Intl Airport to Illinois in July is currently the most expensive (average of £843). 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.

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.

Rainfall in Illinois by month

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.

Temperature in Illinois by month

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).

Reviews of airlines servicing Illinois

To help decide which airline to fly from Glasgow to Illinois, see what other customers have to say about Delta, KLM and Finnair. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Delta

8.0

Very Good

7,917 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very Good

7,917 reviews

Delta

8.0

Very Good

7,917 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM

7.8

Good

1,329 reviews

Delta

8.0

Very Good

7,917 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair

7.6

Good

1,269 reviews

Delta

8.0

Very Good

7,917 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Air France

7.5

Good

1,435 reviews

Delta

8.0

Very Good

7,917 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very Good

7,917 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

What are the cheapest airlines to fly from Glasgow Intl Airport to Illinois one-way?
The cheapet airlines for a one-way flight from Glasgow Intl Airport to Illinois are Aer Lingus (£503), Icelandair (£843), and British Airways (£860).
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, January is the cheapest month in which you can book a flight from Glasgow Intl Airport to Illinois (average of £595). Flying from Glasgow Intl Airport to Illinois in July is currently the most expensive (average of £843). 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

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Complete your trip

Illinois car hire

Chicago O'Hare Intl Airport car hire

Chicago Midway Airport car hire

Moline Quad-City Airport car hire

Greater Peoria Airport car hire

Bloomington-Normal Airport car hire

Springfield Capital Airport car hire

Champaign University-Willard Airport car hire

Chicago Greater Rockford Airport car hire

Belleville Airport car hire

Marion Williamson County Airport car hire

Quincy Regional Airport car hire

Direct flights to United States

Top 6 airlines flying from Glasgow Intl to Illinois

Airline	Cheapest	Average	Flexibility	On-time
Aer Lingus	Cheapest£332	Average£551	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
Air France	Cheapest£342	Average£472	FlexibilityNo cancel fee	On-time77%	Search Air France flights
British Airways	Cheapest£384	Average£495	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Icelandair	Cheapest£418	Average£743	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
KLM	Cheapest£478	Average£516	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Virgin Atlantic	Cheapest£505	Average£546	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic 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.

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Cheap flights from Glasgow Intl Airport to Illinois from £233

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 3/6. 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

Keep the following information in mind while searching for Glasgow Intl to Illinois flight deals. Data was last updated 18 April 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find 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 18 April 2025.

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 18 April 2025.

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

Everything you need to know about your flight from Glasgow Intl Airport to Illinois

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

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

Find hourly flight availability from Glasgow Intl to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 18 April 2025.

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

Reviews of airlines servicing Illinois

To help decide which airline to fly from Glasgow to Illinois, see what other customers have to say about Delta, KLM and Finnair. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Glasgow Intl to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What are the cheapest airlines to fly from Glasgow Intl Airport to Illinois one-way?

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.

Top 6 airlines flying from Glasgow Intl to Illinois

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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?

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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 18 April 2025.