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Cheap flights from Glasgow Intl Airport to Illinois from £400

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 21/8. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — ORD
6 Jul — 13 Jul1
1 adult

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 1 July 2025.

Round-trip from

£400

Popular in

July

Cheapest in

February

Average price

£748
21/8-31/8
  • 21/8-31/8
  • 4 total stops
  • 53h 50m total
  • Glasgow to Illinois
Highest demand for flights based on searches. 18% potential increase in price (£94 potential increase over avg. return price).
Cheapest flight prices on average. 3% potential price decrease (£13 potential savings vs. average return price).
Average for round-trip flights in July 2025

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 1 July 2025.

Thu 21/813:45GLA - ORD
2 stops32h 25mMultiple Airlines
Sun 31/818:00ORD - GLA
2 stops21h 25mMultiple Airlines
Deal found 29/6£400
Wed 1/1014:20GLA - ORD
1 stop12h 55mIcelandair
Wed 8/1019:25ORD - GLA
1 stop12h 00mIcelandair
Deal found 27/6£445
Tue 8/705:50GLA - ORD
1 stop12h 05mBritish Airways
Thu 11/922:35ORD - GLA
1 stop12h 55mBritish Airways
Deal found 30/6£459
Tue 26/808:55GLA - ORD
1 stop11h 15mDelta
Tue 9/913:25ORD - GLA
2 stops20h 45mDelta
Deal found 30/6£505
Wed 8/1006:00GLA - MDW
2 stops18h 36mDelta
Wed 22/1013:00MDW - GLA
2 stops13h 10mDelta
Deal found 29/6£509
Tue 7/1021:20GLA - ORD
1 stop20h 30mFinnair
Thu 23/1020:35ORD - GLA
1 stop11h 00mFinnair
Deal found 29/6£540
Mon 7/706:00GLA - ORD
1 stop14h 10mVirgin Atlantic
Thu 11/910:15ORD - GLA
2 stops15h 55mVirgin Atlantic
Deal found 29/6£561
Wed 9/706:00GLA - ORD
2 stops16h 33mKLM
Thu 11/916:20ORD - GLA
1 stop14h 40mKLM
Deal found 30/6£565
Wed 9/705:50GLA - ORD
2 stops16h 24mAmerican Airlines
Thu 11/913:59ORD - GLA
2 stops14h 16mAmerican Airlines
Deal found 30/6£567
Sun 5/1008:35GLA - MDW
1 stop13h 49mMultiple Airlines
Thu 23/1013:59MDW - GLA
2 stops17h 26mMultiple Airlines
Deal found 29/6£636
Thu 9/1006:10GLA - STL
2 stops39h 34mLufthansa
Mon 13/1012:25STL - GLA
2 stops28h 25mLufthansa
Deal found 30/6£804
Fri 7/1112:40GLA - MLI
2 stops33h 57mLufthansa
Tue 11/1110:50MLI - GLA
2 stops19h 10mLufthansa
Deal found 28/6£804

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 1 July 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

Thu 21/8

13:45-16:10

2 stops32h 25m

Chicago O'Hare Intl

Sun 31/8

18:00-21:25

2 stops21h 25m

£400

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Wed 1/10

14:20-21:15

1 stop12h 55m

Chicago O'Hare Intl

Wed 8/10

19:25-13:25

1 stop12h 00m

£445

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Wed 8/10

05:50-11:50

1 stop12h 00m

Chicago O'Hare Intl

Wed 22/10

22:35-15:35

1 stop11h 00m

£486

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Tue 26/8

08:55-14:10

1 stop11h 15m

Chicago O'Hare Intl

Tue 9/9

13:25-16:10

2 stops20h 45m

£505

GlasgowChicago

GLA - MDW

GLAMDW

Glasgow Intl

Wed 8/10

06:00-18:36

2 stops18h 36m

Chicago Midway

Wed 22/10

13:00-08:10

2 stops13h 10m

£509

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Tue 7/10

21:20-11:50

1 stop20h 30m

Chicago O'Hare Intl

Thu 23/10

20:35-13:35

1 stop11h 00m

£540

GlasgowChicago

GLA - MDW

GLAMDW

Glasgow Intl

Sun 5/10

08:35-16:24

1 stop13h 49m

Chicago Midway

Thu 23/10

13:59-13:25

2 stops17h 26m

£636

GlasgowSt. Louis

GLA - STL

GLASTL

Glasgow Intl

Thu 9/10

06:10-15:44

2 stops39h 34m

Lambert-St Louis

Mon 13/10

12:25-22:50

2 stops28h 25m

£804

GlasgowMoline

GLA - MLI

GLAMLI

Glasgow Intl

Fri 7/11

12:40-16:37

2 stops33h 57m

Moline Quad-City

Tue 11/11

10:50-12:00

2 stops19h 10m

£804

GlasgowSt. Louis

GLA - STL

GLASTL

Glasgow Intl

Thu 9/10

06:00-14:16

2 stops14h 16m

Lambert-St Louis

Mon 13/10

17:45-16:10

2 stops16h 25m

£812

Flights are sorted by cheapest return flights first.

Deals found on 29/6

Showing 1-10 of 20 results
1
2

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?

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 1 July 2025.

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.

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 1 July 2025.
See what other customers who have flown with Delta, KLM, andFinnair 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.

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
8.0
Very Good

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Entertainment

7.9

Overall

8.0

Crew

8.5

Comfort

7.9

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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?

    The cheapet airlines for a one-way flight from Glasgow Intl Airport to Illinois are Aer Lingus (£481), Icelandair (£515), and British Airways (£563).

  • 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?

    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

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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.

Top 6 airlines flying from Glasgow Intl to Illinois

Discover the top 6 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 1 July 2025.
AirlineCheapestAverageFlexibilityOn-time
Aer LingusCheapest£320Average£533FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Air FranceCheapest£330Average£456FlexibilityNo cancel feeOn-time77%
Search Air France flights
British AirwaysCheapest£371Average£460FlexibilityNo cancel feeOn-time70%
Search British Airways flights
IcelandairCheapest£413Average£715FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
KLMCheapest£461Average£498FlexibilityNo cancel feeOn-time75%
Search KLM flights
Virgin AtlanticCheapest£488Average£528FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights

Fly with Cheapflights

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

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

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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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