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Cheap flights from Glasgow to Illinois from £286

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 16/6. Fares are subject to change and may not be available on all flights or dates of travel.
GLA — ORD
18 Jun — 25 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Glasgow to Illinois

Enter your travel dates to find the best prices.

Cheapest flights from Glasgow to Illinois
Explore the most affordable flight options available from Glasgow to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 May 2026.

Tue 2/616:05
GLA
-
ORD
2 stops30h 05m
Multiple Airlines
Tue 16/619:15
ORD
-
GLA
2 stops20h 55m
Multiple Airlines
Deal found 16/5£509
Mon 9/1107:50
GLA
-
ORD
2 stops15h 30m
Multiple Airlines
Thu 19/1118:30
ORD
-
GLA
1 stop9h 25m
Multiple Airlines
Deal found 19/5£543
Tue 15/909:10
GLA
-
ORD
3 stops42h 15m
Multiple Airlines
Tue 22/919:25
ORD
-
GLA
1 stop12h 00m
Multiple Airlines
Deal found 17/5£570
Wed 16/922:35
GLA
-
ORD
3 stops27h 13m
Multiple Airlines
Tue 22/919:25
ORD
-
GLA
1 stop12h 00m
Multiple Airlines
Deal found 17/5£584
Tue 15/914:20
GLA
-
ORD
1 stop9h 55m
Icelandair
Tue 22/919:25
ORD
-
GLA
1 stop12h 00m
Icelandair
Deal found 17/5£603
Sun 7/621:25
GLA
-
ORD
1 stop20h 04m
Aer Lingus
Mon 15/621:00
ORD
-
GLA
1 stop13h 50m
Aer Lingus
Deal found 18/5£605
Sun 7/621:55
GLA
-
ORD
2 stops22h 35m
Multiple Airlines
Mon 15/616:50
ORD
-
GLA
2 stops21h 25m
Multiple Airlines
Deal found 15/5£633
Sat 19/911:00
GLA
-
ORD
1 stop14h 48m
Multiple Airlines
Sat 3/1019:25
ORD
-
GLA
1 stop12h 00m
Multiple Airlines
Deal found 18/5£634
Tue 15/906:00
GLA
-
MDW
2 stops18h 05m
Delta
Tue 22/917:59
MDW
-
GLA
2 stops16h 11m
Delta
Deal found 17/5£680
Fri 2/1006:00
GLA
-
MDW
2 stops18h 31m
Delta
Mon 19/1018:45
MDW
-
GLA
2 stops15h 25m
Delta
Deal found 18/5£710
Sun 7/621:55
GLA
-
MDW
3 stops41h 19m
Multiple Airlines
Mon 15/613:26
MDW
-
GLA
2 stops35h 24m
Multiple Airlines
Deal found 17/5£720
Mon 9/1105:40
GLA
-
MDW
2 stops16h 45m
Multiple Airlines
Thu 19/1113:00
MDW
-
GLA
2 stops13h 30m
Multiple Airlines
Deal found 19/5£737

Find flight deals from Glasgow to Illinois

Keep the following information in mind while searching for Glasgow to Illinois flight deals. Data was last updated 19 May 2026.

Round-trip from

£509

One-way from

£286

Popular in

July

Cheapest in

February

Average price

£555
2/6-16/6
  • 2/6-16/6
  • 4 total stops
  • 51h 00m total
  • Glasgow to Illinois
Search Deals
16/6
  • 16/6
  • 2 total stops
  • 25h 34m total
  • Glasgow to Illinois
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£84 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 May 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Glasgow 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 19 May 2026.
Use the filters below to find and compare flights from Glasgow to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Sat 19/9

10:15-23:55

2 stops19h 40m

Chicago O'Hare Intl

Sat 3/10

19:25-13:25

1 stop12h 00m

£653

GlasgowChicago

GLA - MDW

GLAMDW

Glasgow Intl

Wed 16/9

09:10-18:05

2 stops14h 55m

Chicago Midway

Tue 22/9

09:20-08:25

2 stops17h 05m

£680

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Tue 2/6

21:25-16:59

2 stops25h 34m

Chicago O'Hare Intl

Tue 16/6

15:45-09:40

1 stop11h 55m

£694

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Fri 2/10

17:05-12:30

1 stop25h 25m

Chicago O'Hare Intl

Mon 19/10

21:05-14:50

1 stop11h 45m

£697

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Fri 2/10

06:00-14:15

1 stop14h 15m

Chicago O'Hare Intl

Mon 19/10

17:20-12:55

2 stops13h 35m

£706

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Fri 2/10

06:00-17:41

2 stops17h 41m

Chicago O'Hare Intl

Mon 19/10

10:30-08:25

2 stops15h 55m

£710

GlasgowChicago

GLA - MDW

GLAMDW

Glasgow Intl

Fri 2/10

06:00-18:31

2 stops18h 31m

Chicago Midway

Mon 19/10

18:45-16:10

2 stops15h 25m

£710

GlasgowChicago

GLA - ORD

GLAORD

Glasgow Intl

Tue 8/9

05:55-15:58

2 stops16h 03m

Chicago O'Hare Intl

Tue 15/9

13:59-09:40

2 stops13h 41m

£731

GlasgowChicago

GLA - MDW

GLAMDW

Glasgow Intl

Mon 9/11

05:40-16:25

2 stops16h 45m

Chicago Midway

Thu 19/11

13:00-08:30

2 stops13h 30m

£737

GlasgowChicago

GLA - MDW

GLAMDW

Glasgow Intl

Fri 12/6

07:10-09:35

2 stops32h 25m

Chicago Midway

Fri 19/6

10:25-06:50

1 stop14h 25m

£786

Flights are sorted by cheapest return flights first.

Deals found on 19/5

Showing 1-10 of 39 resultsSorted by cheapest first
1
2
3
4

Best time to book a flight from Glasgow to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Glasgow 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 to Illinois

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

Currently, September is the cheapest month in which you can book a flight from Glasgow to Illinois (average of £55). Flying from Glasgow to Illinois in June is currently the most expensive (average of £481). 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 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 19 May 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Glasgow to Illinois as you normally would.

How much does it cost for a return flight from Glasgow to Illinois?

How far ahead should I book a flight from Glasgow to Illinois?

The best time to book flights from Glasgow to Illinois is 88 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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 19 May 2026.
Get a feel of what it's like to fly with Aer Lingus,American Airlines, andIcelandair from Glasgow to Illinois by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Aer Lingus
7.3
Good
1,568 reviews
Check prices

Comfort

7.2

Entertainment

7.0

Overall

7.3

Boarding

7.4

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.
Aer Lingus
7.3
Good
1,568 reviews
Aer Lingus
7.3
Good
1,568 reviews
Check prices

Comfort

7.2

Entertainment

7.0

Overall

7.3

Boarding

7.4

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.
American Airlines
7.1
Good
11,648 reviews
Aer Lingus
7.3
Good
1,568 reviews
Check prices

Comfort

7.2

Entertainment

7.0

Overall

7.3

Boarding

7.4

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.
Icelandair
7.0
Good
656 reviews
Aer Lingus
7.3
Good
1,568 reviews
Check prices

Comfort

7.2

Entertainment

7.0

Overall

7.3

Boarding

7.4

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.
British Airways
6.7
Okay
7,986 reviews
Aer Lingus
7.3
Good
1,568 reviews
Check prices

Comfort

7.2

Entertainment

7.0

Overall

7.3

Boarding

7.4

Crew

8.1

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Anonymous,May 2026

DUB - EWR

Underpricer is a terrible organization that inserted itself as a “travel agent” simply by way of me booking on kayak. Never would I have willing assented to using underpricer. Further, we had a problem whereby two duplicate one-way flights from Dublin were inadvertently booked for me and my wife, stemming from a family emergency. My wife’s sister / my sister in law had a brain tumor and immediate surgery to remove it, which obviously impacted our previously planned travel arrangements. I tried to cancel the flight due to the extenuating circumstances. Underpricer said canceling was not possible, but a credit would be possible for the exact same flight - one way from Dublin - to be used in one year from the original flight date. I asked if it would be possible to make the credit a general credit to any participating AerLingus airport destination, which would allow more flexibility than having to go back to Ireland within a year. In order to pursue the credit, Underpricer requested documentary proof regarding my sister in laws brain tumor, which we gave them. Underpricer then asked us to document our relationship to the patient - so I gave them my marriage certificate to evidence my wife and her sister having the same last name. Underpricer asked for further proof, so we gave them copies of my passport, my wife’s passport, and my sister in laws passport. All of these hoops to jump through for Underpricer, with sporadic communication on their part throughout, only for them to say 3 days before the original booking that no credit was available - not even the one they originally offered. They said my only option was to pick a date within the next year to move the flight to - and of course to make that change, they charged me an additional $350 fee just to make that change. What a pathetic, fraudulent organization. Kayak should be embarrassed to be associated with Underpricer and should cease that relationship immediately. And for AerLingus, who only Underpricer could talk to regarding the booking (I was not permitted) to not understand our family’s situation and just stand by blanket policy that no credit is permitted, is equally disappointing.

Related info for your journey

Find useful and relevant information for your journey from Glasgow 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 to Illinois?

    Departing from Glasgow to Illinois will take you 14h 15m. Airlines will cover a distance of 3663 mi. This flight may include one or multiple stops.

  • What are the most popular routes from Glasgow to Illinois?

    While some choose either Glasgow Intl - Chicago Midway or Glasgow Intl - Moline Quad-City, Glasgow Intl - Chicago O'Hare Intl is the most popular route from Glasgow to Illinois.

  • Can I find deals for flights from Glasgow to Illinois that include hotel bookings?

    Yes. In addition to deals on Glasgow to Illinois flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Glasgow to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Glasgow to Illinois.

  • Can I find deals for business class flights from Glasgow to Illinois?

    Yes. Cheapflights offers flight deals from Glasgow 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 to Illinois?

    Currently, September is the cheapest month in which you can book a flight from Glasgow to Illinois (average of £55). Flying from Glasgow to Illinois in June is currently the most expensive (average of £481). 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 to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 8 airlines flying from Glasgow to Illinois

Discover the top 8 airlines that operate flights from Glasgow 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 19 May 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest£287Average£586FlexibilityNo cancel feeOn-time76%
Search Icelandair flights
Virgin AtlanticCheapest£363Average£585FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£396Average£514FlexibilityNo cancel feeOn-time70%
Search British Airways flights
JetBlueCheapest£469Average£615FlexibilityNo cancel feeOn-time62%
Search JetBlue flights
KLMCheapest£485Average£617FlexibilityNo cancel feeOn-time75%
Search KLM flights
Aer LingusCheapest£499Average£756FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
LufthansaCheapest£562Average£795FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£568Average£752FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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 to Illinois?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Glasgow 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 to Illinois?

Cheapflights simply makes it quick and affordable to book flights from Glasgow 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 to Illinois with no change fees?

Certainly. Search results for flights to Illinois from Glasgow 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 to Illinois become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Illinois from Glasgow today and book when prices fit your budget.

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