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 Icelandair (£432), Aer Lingus (£527), and British Airways (£841).

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 136% 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 £397, or £817 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 £598. You can even find prices in February for less than £598, as users have found deals to Illinois from as low as £375. 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.

£405+ Flights from Glasgow Intl Airport to Illinois

Cheap flight deals from Glasgow Intl to Illinois

Round-trip from	£424
One-way from	£405
Popular in	July
Cheapest in	February
Average price	£506

British Airways
1/5-15/5
3 total stops
34h 30m total
Glasgow to Illinois

Search Deals

8/9
2 total stops
37h 30m total
Glasgow to Illinois

Search Deals

Highest demand for flights based on searches. 17% potential increase in price (£101 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£15 potential savings vs. average return price).

Search Deals

Average for round-trip flights in March 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 28 March 2025.

Thu 1/507:00GLA - ORD

1 stop14h 55mBritish Airways

Thu 15/511:45ORD - GLA

2 stops19h 35mBritish Airways

Deal found 27/3£424

Thu 24/414:20GLA - ORD

1 stop9h 55mIcelandair

Sun 4/519:25ORD - GLA

1 stop12h 00mIcelandair

Deal found 28/3£431

Thu 24/407:05GLA - ORD

2 stops22h 34mMultiple Airlines

Sun 4/522:15ORD - GLA

1 stop9h 10mMultiple Airlines

Deal found 27/3£452

Mon 21/408:25GLA - ORD

1 stop12h 20mAmerican Airlines

Thu 1/522:20ORD - GLA

1 stop13h 10mAmerican Airlines

Deal found 27/3£494

Tue 26/808:55GLA - ORD

2 stops19h 15mDelta

Tue 9/911:00ORD - GLA

2 stops15h 10mDelta

Deal found 27/3£563

Mon 12/514:05GLA - ORD

2 stops35h 16mFinnair

Mon 19/522:25ORD - GLA

1 stop14h 05mFinnair

Deal found 28/3£565

Thu 1/508:55GLA - ORD

1 stop11h 15mKLM

Thu 15/519:25ORD - GLA

2 stops14h 45mKLM

Deal found 27/3£598

Fri 9/506:10GLA - ORD

1 stop12h 45mLufthansa

Sun 18/522:30ORD - GLA

1 stop18h 30mLufthansa

Deal found 28/3£609

Thu 1/506:00GLA - MDW

2 stops17h 19mDelta

Thu 15/509:20MDW - GLA

2 stops16h 50mDelta

Deal found 27/3£621

Fri 9/514:30GLA - ORD

1 stop29h 20mIberia

Fri 16/522:25ORD - GLA

1 stop18h 55mIberia

Deal found 28/3£634

Fri 13/613:05GLA - ORD

1 stop11h 55mAer Lingus

Tue 5/815:45ORD - GLA

1 stop13h 45mAer Lingus

Deal found 27/3£682

Sun 11/508:35GLA - STL

3 stops34h 01mMultiple Airlines

Sun 18/506:30STL - GLA

3 stops25h 25mMultiple Airlines

Deal found 27/3£721

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 28 March 2025.

Thu 1/507:00GLA - ORD

1 stop14h 55mBritish Airways

Thu 15/511:45ORD - GLA

2 stops19h 35mBritish Airways

Deal found 27/3£424

Thu 24/414:20GLA - ORD

1 stop9h 55mIcelandair

Sun 4/519:25ORD - GLA

1 stop12h 00mIcelandair

Deal found 28/3£431

Thu 24/407:05GLA - ORD

2 stops22h 34mMultiple Airlines

Sun 4/522:15ORD - GLA

1 stop9h 10mMultiple Airlines

Deal found 27/3£452

Mon 21/408:25GLA - ORD

1 stop12h 20mAmerican Airlines

Thu 1/522:20ORD - GLA

1 stop13h 10mAmerican Airlines

Deal found 27/3£494

Tue 26/808:55GLA - ORD

2 stops19h 15mDelta

Tue 9/911:00ORD - GLA

2 stops15h 10mDelta

Deal found 27/3£563

Mon 12/514:05GLA - ORD

2 stops35h 16mFinnair

Mon 19/522:25ORD - GLA

1 stop14h 05mFinnair

Deal found 28/3£565

Thu 1/508:55GLA - ORD

1 stop11h 15mKLM

Thu 15/519:25ORD - GLA

2 stops14h 45mKLM

Deal found 27/3£598

Fri 9/514:30GLA - ORD

1 stop29h 20mIberia

Fri 16/522:25ORD - GLA

1 stop18h 55mIberia

Deal found 28/3£634

Fri 13/613:05GLA - ORD

1 stop11h 55mAer Lingus

Tue 5/815:45ORD - GLA

1 stop13h 45mAer Lingus

Deal found 27/3£682

Thu 24/706:00GLA - ORD

2 stops15h 00mAir France

Mon 22/916:50ORD - GLA

1 stop17h 20mAir France

Deal found 28/3£779

Sat 30/806:10GLA - STL

2 stops18h 23mLufthansa

Fri 12/915:30STL - GLA

1 stop14h 50mLufthansa

Deal found 26/3£953

Thu 1/506:00GLA - MDW

2 stops17h 19mDelta

Thu 15/509:20MDW - GLA

2 stops16h 50mDelta

Deal found 27/3£621

Last-minute flights from Glasgow Intl to Illinois
Discover last-minute flight deals from Glasgow Intl to Illinois. Data last updated 28 March 2025 and is based on user searches.

Fri 4/412:00GLA - ORD

1 stop13h 00mAer Lingus

Fri 25/415:45ORD - GLA

1 stop10h 20mAer Lingus

Deal found 28/3£701

Fri 4/407:00GLA - ORD

2 stops37h 38mMultiple Airlines

Fri 25/422:15ORD - GLA

2 stops15h 40mMultiple Airlines

Deal found 28/3£765

Fri 4/406:00GLA - ORD

1 stop14h 10mVirgin Atlantic

Fri 25/413:25ORD - GLA

2 stops27h 45mVirgin Atlantic

Deal found 28/3£769

Mon 21/408:25GLA - ORD

1 stop12h 20mAmerican Airlines

Thu 1/522:20ORD - GLA

1 stop13h 10mAmerican Airlines

Deal found 27/3£494

Thu 24/414:20GLA - ORD

1 stop9h 55mIcelandair

Sun 4/519:25ORD - GLA

1 stop12h 00mIcelandair

Deal found 28/3£431

Thu 24/407:05GLA - ORD

2 stops22h 34mMultiple Airlines

Sun 4/522:15ORD - GLA

1 stop9h 10mMultiple Airlines

Deal found 27/3£452

Thu 24/408:55GLA - MDW

2 stops15h 25mAir France

Sun 4/517:59MDW - GLA

2 stops16h 11mAir France

Deal found 27/3£805

Thu 24/406:00GLA - MDW

2 stops14h 22mDelta

Sun 4/517:59MDW - GLA

2 stops16h 11mDelta

Deal found 27/3£814

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 28 March 2025.

Mon 8/906:45GLA - ORD

2 stops37h 30mMultiple Airlines

Deal found 28/3£405

Mon 8/914:20GLA - ORD

1 stop9h 55mIcelandair

Deal found 27/3£432

Mon 8/908:35GLA - MDW

1 stop13h 49mMultiple Airlines

Deal found 27/3£449

Thu 31/714:20GLA - STL

3 stops48h 51mMultiple Airlines

Deal found 27/3£517

Tue 3/617:20GLA - ORD

2 stops26h 30mAer Lingus

Deal found 27/3£527

Thu 31/720:10GLA - STL

2 stops30h 20mAer Lingus

Deal found 27/3£745

Wed 14/505:50GLA - ORD

1 stop17h 10mBritish Airways

Deal found 27/3£841

Mon 7/413:30GLA - ORD

2 stops32h 41mDelta

Deal found 27/3£1,254

Mon 7/408:55GLA - MDW

2 stops35h 22mDelta

Deal found 27/3£1,254

Mon 8/913:10GLA - ORD

1 stop29h 45mLufthansa

Deal found 28/3£1,389

Mon 8/913:30GLA - MDW

2 stops34h 33mVirgin Atlantic

Deal found 28/3£2,606

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

Thu 1/5

07:00-15:55

1 stop14h 55m

Chicago O'Hare Intl

Thu 15/5

11:45-13:20

2 stops19h 35m

£424

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Thu 24/4

14:20-18:15

1 stop9h 55m

Chicago O'Hare Intl

Sun 4/5

19:25-13:25

1 stop12h 00m

£431

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Thu 24/4

07:05-23:39

2 stops22h 34m

Chicago O'Hare Intl

Sun 4/5

22:15-13:25

1 stop9h 10m

£452

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Mon 21/4

08:25-14:45

1 stop12h 20m

Chicago O'Hare Intl

Thu 1/5

22:20-17:30

1 stop13h 10m

£494

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Tue 26/8

08:55-22:10

2 stops19h 15m

Chicago O'Hare Intl

Tue 9/9

11:00-08:10

2 stops15h 10m

£563

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Tue 26/8

06:00-14:59

2 stops14h 59m

Chicago O'Hare Intl

Tue 9/9

16:20-13:00

1 stop14h 40m

£564

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Mon 12/5

14:05-19:21

2 stops35h 16m

Chicago O'Hare Intl

Mon 19/5

22:25-18:30

1 stop14h 05m

£565

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Fri 9/5

06:10-12:55

1 stop12h 45m

Chicago O'Hare Intl

Sun 18/5

22:30-23:00

1 stop18h 30m

£609

GlasgowChicago

GLA - MDW

GLAMDW

Glasgow Intl

Thu 1/5

06:00-17:19

2 stops17h 19m

Chicago Midway

Thu 15/5

09:20-08:10

2 stops16h 50m

£621

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Fri 9/5

14:30-13:50

1 stop29h 20m

Chicago O'Hare Intl

Fri 16/5

22:25-23:20

1 stop18h 55m

£634

Flights are sorted by cheapest return flights first.

Deals found on 28/3

Showing 1-10 of 30 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

7,896 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

7,896 reviews

Delta

8.0

Very Good

7,896 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

1,321 reviews

Delta

8.0

Very Good

7,896 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

1,267 reviews

Delta

8.0

Very Good

7,896 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

7.4

Good

1,424 reviews

Delta

8.0

Very Good

7,896 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

Virgin Atlantic

7.4

Good

634 reviews

Delta

8.0

Very Good

7,896 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 Icelandair (£432), Aer Lingus (£527), and British Airways (£841).
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

Alternative routes for Glasgow Intl to Illinois

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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

Chicago Greater Rockford Airport car hire

Champaign University-Willard 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£340	Average£563	FlexibilityNo cancel fee	On-timeN/A	Search Aer Lingus flights
Air France	Cheapest£350	Average£483	FlexibilityNo cancel fee	On-time77%	Search Air France flights
British Airways	Cheapest£393	Average£503	FlexibilityNo cancel fee	On-time70%	Search British Airways flights
Icelandair	Cheapest£426	Average£733	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
KLM	Cheapest£489	Average£528	FlexibilityNo cancel fee	On-time75%	Search KLM flights
Virgin Atlantic	Cheapest£517	Average£559	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 £405

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 8/9. 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 28 March 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 28 March 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 28 March 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 28 March 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 28 March 2025.