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Cheap flights from Glasgow Intl Airport to Illinois from £278

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 17/1. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — ORD
20 Dec — 27 Dec1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Glasgow Intl to Illinois

Enter your travel dates to find the best prices.

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 20 November 2025.

Tue 9/1212:35GLA - ORD
1 stop10h 45mIcelandair
Tue 13/118:30ORD - GLA
1 stop9h 25mIcelandair
Deal found 18/11£509
Thu 4/1212:35GLA - ORD
1 stop10h 45mIcelandair
Mon 8/1218:30ORD - GLA
1 stop9h 25mIcelandair
Deal found 18/11£515
Tue 9/1212:35GLA - ORD
1 stop10h 45mIcelandair
Sun 11/118:30ORD - GLA
1 stop9h 25mIcelandair
Deal found 18/11£533
Thu 18/1207:15GLA - ORD
1 stop12h 45mMultiple Airlines
Thu 25/1215:50ORD - GLA
1 stop18h 10mMultiple Airlines
Deal found 18/11£535
Wed 3/1208:20GLA - ORD
1 stop11h 40mAer Lingus
Wed 10/1219:40ORD - GLA
1 stop18h 00mAer Lingus
Deal found 19/11£544
Wed 17/1212:00GLA - ORD
1 stop11h 55mAer Lingus
Wed 7/121:00ORD - GLA
1 stop13h 00mAer Lingus
Deal found 18/11£574
Wed 3/1207:45GLA - ORD
1 stop12h 15mMultiple Airlines
Thu 11/1215:50ORD - GLA
1 stop10h 05mMultiple Airlines
Deal found 19/11£595
Wed 19/1112:35GLA - ORD
1 stop10h 45mIcelandair
Wed 26/1118:30ORD - GLA
1 stop9h 25mIcelandair
Deal found 18/11£607
Wed 3/1205:55GLA - ORD
1 stop17h 05mAmerican Airlines
Tue 9/1213:17ORD - GLA
2 stops14h 33mAmerican Airlines
Deal found 19/11£616
Wed 3/1211:40GLA - ORD
2 stops17h 59mAmerican Airlines
Thu 11/1211:47ORD - GLA
2 stops15h 43mAmerican Airlines
Deal found 19/11£620
Wed 3/1206:05GLA - MDW
2 stops18h 13mKLM
Wed 10/1213:50MDW - GLA
2 stops16h 55mKLM
Deal found 19/11£706
Wed 3/1206:05GLA - MDW
2 stops17h 55mDelta
Sun 7/1209:34MDW - GLA
2 stops16h 56mDelta
Deal found 17/11£709

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 20 November 2025.

Round-trip from

£375

One-way from

£278

Popular in

December

Cheapest in

February

Average price

£491
Icelandair
  • Icelandair
  • 14/1-30/1
  • 2 total stops
  • 20h 10m total
  • Glasgow to Illinois
Search Deals
17/1
  • 17/1
  • 2 total stops
  • 37h 20m total
  • Glasgow to Illinois
Search Deals
Highest demand for flights based on searches. 5% potential increase in price (£27 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 November 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Glasgow Intl to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 20 November 2025.
Use the filters below to find and compare flights from Glasgow Intl Airport to Illinois that are best for you.

Fly from

Glasgow Intl

Fly to

Illinois

Route

Depart

Return

Price

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Tue 9/12

12:35-17:20

1 stop10h 45m

Chicago O'Hare Intl

Tue 13/1

18:30-09:55

1 stop9h 25m

£509

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Thu 4/12

12:35-17:20

1 stop10h 45m

Chicago O'Hare Intl

Mon 8/12

18:30-09:55

1 stop9h 25m

£515

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Tue 9/12

12:35-17:20

1 stop10h 45m

Chicago O'Hare Intl

Sun 11/1

18:30-09:55

1 stop9h 25m

£533

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Thu 18/12

07:15-14:00

1 stop12h 45m

Chicago O'Hare Intl

Thu 25/12

15:50-16:00

1 stop18h 10m

£535

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Wed 17/12

12:00-17:55

1 stop11h 55m

Chicago O'Hare Intl

Wed 7/1

21:00-16:00

1 stop13h 00m

£574

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Wed 3/12

07:45-14:00

1 stop12h 15m

Chicago O'Hare Intl

Thu 11/12

15:50-07:55

1 stop10h 05m

£595

GlasgowSt. Louis

GLA - STL

GLASTL

Glasgow Intl

Tue 10/2

11:40-23:12

2 stops17h 32m

Lambert-St Louis

Mon 16/2

14:00-10:45

2 stops14h 45m

£597

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Fri 17/4

14:20-21:40

1 stop13h 20m

Chicago O'Hare Intl

Fri 24/4

19:25-13:25

1 stop12h 00m

£600

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Fri 27/3

13:20-18:20

1 stop10h 00m

Chicago O'Hare Intl

Sat 4/4

19:25-13:25

1 stop12h 00m

£612

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Wed 3/12

05:55-17:00

1 stop17h 05m

Chicago O'Hare Intl

Tue 9/12

13:17-09:50

2 stops14h 33m

£616

Flights are sorted by cheapest return flights first.

Deals found on 17/11

Showing 1-10 of 38 results
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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, March 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 June is currently the most expensive (average of £514). 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?

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 20 November 2025.

It’s typically best to fly out from Glasgow Intl Airport to Illinois in the afternoon. Doing so could potentially save you 38% on the flight price compared to flying in the morning, which is usually more expensive.

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated 20 November 2025.
See what other customers who have flown with KLM, Virgin Atlantic, andAer Lingus 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.
KLM
7.7
Good
1,412 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Food

7.3

Boarding

7.8

Overall

7.7

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
KLM
7.7
Good
1,412 reviews
KLM
7.7
Good
1,412 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Food

7.3

Boarding

7.8

Overall

7.7

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Virgin Atlantic
7.5
Good
673 reviews
KLM
7.7
Good
1,412 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Food

7.3

Boarding

7.8

Overall

7.7

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Aer Lingus
7.2
Good
1,377 reviews
KLM
7.7
Good
1,412 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Food

7.3

Boarding

7.8

Overall

7.7

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
Icelandair
7.0
Good
581 reviews
KLM
7.7
Good
1,412 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Food

7.3

Boarding

7.8

Overall

7.7

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.
British Airways
6.7
Okay
7,534 reviews
KLM
7.7
Good
1,412 reviews
Check prices

Comfort

7.7

Entertainment

7.1

Food

7.3

Boarding

7.8

Overall

7.7

Crew

8.4

Reviews

1 / 20
2.0
Mediocre

Abisola,Oct 2025

LOS - CDG

The food option was finished and what wa left was vegan pasta so I had to go without food for an 8 hour flight without any sort of empathy from crew that was mean.

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.

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

    For as low as £509, Icelandair can have you in Illinois from Glasgow Intl Airport in 10h 45m. 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 - Moline Quad-City.

  • 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, March 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 June is currently the most expensive (average of £514). 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

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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.
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Top 5 airlines flying from Glasgow Intl to Illinois

Discover the top 5 airlines that operate flights from Glasgow Intl to Illinois. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 20 November 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£388Average£481FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IcelandairCheapest£462Average£750FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
KLMCheapest£483Average£526FlexibilityNo cancel feeOn-time75%
Search KLM flights
Virgin AtlanticCheapest£487Average£557FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Aer LingusCheapest£509Average£734FlexibilityNo cancel feeOn-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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