In terms of precipitation, rainfall in Glasgow Intl Airport ranges from 33.0 - 112.0 inches per month. January is typically the wettest month, when rainfall can reach 112.0 mm. May is typically the driest time to visit Glasgow Intl Airport when rainfall is around 33.0 mm.

If weather is an important factor for your trip to Glasgow Intl Airport, 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 16.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

What are the most popular routes from Illinois to Glasgow Intl Airport?

Most travelers choose Chicago O'Hare Intl - Glasgow Intl, Lambert-St Louis - Glasgow Intl or Chicago Midway - Glasgow Intl when deciding on the best route from Illinois to Glasgow Intl Airport.

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

To save on the cost of your flight from Illinois to Glasgow Intl Airport, book at least 35 days before your planned departure. Booking around this time can save you about 20% on the cost of this flight compared to booking a flight leaving this week. We have found prices from £457 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as £457.

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

October is one of the best times of the year to fly to Glasgow Intl Airport from Illinois. Prices for October average £530 per person but you can even find prices for as low as £353. The most expensive prices can be found in the month of June. Opting for a October flight can save you 33% on your journey compared to booking in June

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

When flying from Illinois to Glasgow Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

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

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

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

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

Yes. Cheapflights offers flight deals from Illinois to Glasgow Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£195+ Flights from Illinois to Glasgow Intl Airport

Cheap flight deals from Illinois to Glasgow Intl

Round-trip from	£384
One-way from	£195
Popular in	June
Cheapest in	October
Average price	£645

30/10-7/11
6 total stops
52h 00m total
Illinois to Glasgow

Search Deals

5/10
2 total stops
22h 20m total
Illinois to Glasgow

Search Deals

Highest demand for flights based on searches. 17% potential increase in price (£80 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£13 potential savings vs. average return price).

Search Deals

Average for round-trip flights in August 2025

Search Deals

Find flight deals from Illinois to Glasgow Intl

Cheapest flights from Illinois to Glasgow Intl
Explore the most affordable flight options available from Illinois to Glasgow Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 August 2025.

Thu 30/1020:50ORD - GLA

3 stops21h 40mMultiple Airlines

Fri 7/1116:25GLA - ORD

3 stops30h 20mMultiple Airlines

Deal found 15/8£384

Thu 30/1019:30ORD - GLA

1 stop9h 25mIcelandair

Fri 7/1112:35GLA - ORD

1 stop10h 45mIcelandair

Deal found 15/8£388

Mon 6/1019:25ORD - GLA

1 stop12h 00mIcelandair

Wed 15/1014:20GLA - ORD

1 stop9h 55mIcelandair

Deal found 17/8£389

Mon 17/1118:30ORD - GLA

1 stop9h 25mIcelandair

Wed 3/1212:35GLA - ORD

1 stop10h 45mIcelandair

Deal found 14/8£390

Fri 31/1019:30ORD - GLA

1 stop9h 25mIcelandair

Fri 7/1112:35GLA - ORD

1 stop10h 45mIcelandair

Deal found 15/8£391

Fri 17/1019:25ORD - GLA

1 stop12h 00mIcelandair

Tue 28/1012:35GLA - ORD

1 stop10h 45mIcelandair

Deal found 14/8£392

Fri 26/919:25ORD - GLA

1 stop12h 00mIcelandair

Thu 2/1014:20GLA - ORD

1 stop9h 55mIcelandair

Deal found 15/8£393

Sat 20/919:25ORD - GLA

1 stop12h 00mIcelandair

Fri 3/1014:20GLA - ORD

1 stop12h 55mIcelandair

Deal found 14/8£395

Fri 26/922:15ORD - GLA

1 stop9h 10mIcelandair

Fri 3/1014:20GLA - ORD

1 stop9h 55mIcelandair

Deal found 15/8£396

Tue 4/1118:30ORD - GLA

1 stop9h 25mIcelandair

Tue 11/1112:35GLA - ORD

1 stop10h 45mIcelandair

Deal found 14/8£398

Wed 8/1022:15ORD - GLA

1 stop9h 10mIcelandair

Wed 15/1014:20GLA - ORD

1 stop9h 55mIcelandair

Deal found 17/8£400

Wed 5/1118:30ORD - GLA

1 stop9h 25mIcelandair

Sun 9/1112:35GLA - ORD

1 stop10h 45mIcelandair

Deal found 16/8£400

Best flights from Illinois to Glasgow Intl
Discover carefully curated flight deals from Illinois to Glasgow Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 August 2025.

Thu 30/1020:50ORD - GLA

3 stops21h 40mMultiple Airlines

Fri 7/1116:25GLA - ORD

3 stops30h 20mMultiple Airlines

Deal found 15/8£384

Thu 30/1019:30ORD - GLA

1 stop9h 25mIcelandair

Fri 7/1112:35GLA - ORD

1 stop10h 45mIcelandair

Deal found 15/8£388

Wed 3/913:03STL - GLA

2 stops20h 32mBritish Airways

Wed 17/907:00GLA - STL

2 stops17h 32mBritish Airways

Deal found 16/8£512

Sun 21/909:20MDW - GLA

2 stops24h 50mDelta

Thu 2/1006:00GLA - MDW

2 stops17h 35mDelta

Deal found 14/8£586

Mon 17/1113:00MDW - GLA

2 stops13h 30mKLM

Wed 3/1206:05GLA - MDW

2 stops16h 18mKLM

Deal found 14/8£586

Mon 6/1019:25ORD - GLA

1 stop12h 00mIcelandair

Wed 15/1014:20GLA - ORD

1 stop12h 55mIcelandair

Deal found 16/8£389

Fri 31/1019:30ORD - GLA

1 stop9h 25mIcelandair

Fri 7/1112:35GLA - ORD

1 stop10h 45mIcelandair

Deal found 15/8£391

Thu 30/1019:30ORD - GLA

1 stop9h 25mIcelandair

Sat 8/1112:35GLA - ORD

1 stop10h 45mIcelandair

Deal found 15/8£391

Tue 30/913:53STL - GLA

2 stops18h 47mBritish Airways

Tue 7/1009:15GLA - STL

2 stops19h 50mBritish Airways

Deal found 16/8£516

Fri 31/1019:30ORD - GLA

1 stop9h 25mIcelandair

Sat 8/1112:35GLA - ORD

1 stop10h 45mIcelandair

Deal found 15/8£391

Mon 1/917:32STL - GLA

2 stops17h 13mBritish Airways

Mon 15/920:50GLA - STL

2 stops24h 47mBritish Airways

Deal found 17/8£517

Wed 29/1019:30ORD - GLA

1 stop9h 25mIcelandair

Fri 7/1112:35GLA - ORD

1 stop10h 45mIcelandair

Deal found 17/8£392

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

Fri 22/817:40ORD - GLA

1 stop19h 15mBritish Airways

Sun 7/905:55GLA - ORD

1 stop11h 55mBritish Airways

Deal found 17/8£536

Fri 22/817:40ORD - GLA

1 stop17h 00mBritish Airways

Sat 30/819:45GLA - ORD

2 stops26h 00mBritish Airways

Deal found 16/8£542

Fri 22/818:42MDW - GLA

2 stops15h 28mDelta

Sat 30/806:00GLA - MDW

2 stops21h 12mDelta

Deal found 16/8£668

Sun 24/819:59STL - GLA

2 stops14h 41mBritish Airways

Mon 8/920:50GLA - STL

2 stops27h 42mBritish Airways

Deal found 17/8£663

Sun 24/817:30STL - GLA

2 stops23h 30mLufthansa

Fri 12/906:10GLA - STL

1 stop13h 20mLufthansa

Deal found 17/8£665

Mon 25/813:08MDW - GLA

2 stops13h 02mDelta

Thu 11/906:00GLA - MDW

2 stops17h 35mDelta

Deal found 15/8£594

Mon 25/822:15ORD - GLA

1 stop9h 10mMultiple Airlines

Sat 30/806:25GLA - ORD

2 stops21h 57mMultiple Airlines

Deal found 16/8£606

Mon 25/813:08MDW - GLA

2 stops13h 02mDelta

Sun 14/906:00GLA - MDW

2 stops17h 35mDelta

Deal found 15/8£631

Mon 25/813:10STL - GLA

2 stops17h 10mLufthansa

Wed 10/906:10GLA - STL

1 stop13h 20mLufthansa

Deal found 17/8£677

Mon 25/822:15ORD - GLA

1 stop9h 10mIcelandair

Tue 9/914:20GLA - ORD

1 stop9h 55mIcelandair

Deal found 15/8£417

Tue 26/812:20STL - GLA

2 stops15h 20mBritish Airways

Tue 9/908:45GLA - STL

2 stops17h 47mBritish Airways

Deal found 16/8£668

Tue 26/813:15STL - GLA

2 stops16h 55mBritish Airways

Wed 10/905:50GLA - STL

2 stops15h 47mBritish Airways

Deal found 17/8£673

One-way flights from Illinois to Glasgow Intl
Search for one-way flight options from Illinois to Glasgow Intl. Find affordable one-way fares based on user searches. Data last updated 18 August 2025.

Sun 5/1009:35MDW - GLA

2 stops22h 20mMultiple Airlines

Deal found 15/8£195

Wed 1/1006:30ORD - GLA

2 stops31h 20mMultiple Airlines

Deal found 17/8£215

Tue 26/822:15ORD - GLA

1 stop9h 10mIcelandair

Deal found 16/8£235

Sat 20/919:55STL - GLA

3 stops54h 20mMultiple Airlines

Deal found 16/8£246

Sun 28/922:15ORD - GLA

1 stop9h 10mIcelandair

Deal found 15/8£256

Wed 1/1022:15ORD - GLA

1 stop9h 10mIcelandair

Deal found 17/8£262

Mon 27/1019:30ORD - GLA

1 stop9h 25mIcelandair

Deal found 16/8£270

Sat 4/1019:25ORD - GLA

1 stop12h 00mIcelandair

Deal found 17/8£274

Tue 14/1016:55ORD - GLA

1 stop10h 45mBritish Airways

Deal found 17/8£277

Sun 21/916:55ORD - GLA

1 stop14h 20mBritish Airways

Deal found 17/8£280

Mon 27/1013:48MDW - GLA

2 stops13h 42mKLM

Deal found 15/8£316

Tue 26/813:43MDW - GLA

2 stops17h 17mDelta

Deal found 17/8£319

Cheapflights Fare Finder

Use the filters below to find and compare flights from Illinois to Glasgow Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Thu 30/10

20:50-23:30

3 stops21h 40m

Glasgow Intl

Fri 7/11

16:25-16:45

3 stops30h 20m

£384

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Thu 30/10

19:30-09:55

1 stop9h 25m

Glasgow Intl

Fri 7/11

12:35-17:20

1 stop10h 45m

£388

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Mon 6/10

19:25-13:25

1 stop12h 00m

Glasgow Intl

Wed 15/10

14:20-21:15

1 stop12h 55m

£389

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Fri 31/10

19:30-09:55

1 stop9h 25m

Glasgow Intl

Fri 7/11

12:35-17:20

1 stop10h 45m

£391

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Thu 30/10

19:30-09:55

1 stop9h 25m

Glasgow Intl

Sat 8/11

12:35-17:20

1 stop10h 45m

£391

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Fri 31/10

19:30-09:55

1 stop9h 25m

Glasgow Intl

Sat 8/11

12:35-17:20

1 stop10h 45m

£391

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Wed 29/10

19:30-09:55

1 stop9h 25m

Glasgow Intl

Fri 7/11

12:35-17:20

1 stop10h 45m

£392

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Fri 17/10

22:15-13:25

1 stop9h 10m

Glasgow Intl

Tue 28/10

12:35-18:20

1 stop10h 45m

£393

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Fri 26/9

22:15-13:25

1 stop9h 10m

Glasgow Intl

Fri 3/10

14:20-18:15

1 stop9h 55m

£396

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Wed 8/10

22:15-13:25

1 stop9h 10m

Glasgow Intl

Wed 15/10

14:20-18:15

1 stop9h 55m

£400

Flights are sorted by cheapest return flights first.

Deals found on 15/8

Showing 1-10 of 45 results

...

Best time to book a flight from Illinois to Glasgow Intl

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

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

Currently, April is the cheapest month in which you can book a flight from Illinois to Glasgow Intl Airport (average of £97). Flying from Illinois to Glasgow Intl Airport in July is currently the most expensive (average of £119). 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.

Related info for your journey

What are the most popular routes from Illinois to Glasgow Intl Airport?
Most travelers choose Chicago O'Hare Intl - Glasgow Intl, Lambert-St Louis - Glasgow Intl or Chicago Midway - Glasgow Intl when deciding on the best route from Illinois to Glasgow Intl Airport.
Can I find deals for flights from Illinois to Glasgow Intl that include hotel bookings?
Yes. In addition to deals on Illinois to Glasgow Intl flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Illinois to Glasgow Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Glasgow Intl.
Can I find deals for business class flights from Illinois to Glasgow Intl?
Yes. Cheapflights offers flight deals from Illinois to Glasgow Intl 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 Illinois to Glasgow Intl Airport?
Currently, April is the cheapest month in which you can book a flight from Illinois to Glasgow Intl Airport (average of £97). Flying from Illinois to Glasgow Intl Airport in July is currently the most expensive (average of £119). 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

Paisley

Dunoon

Largs

Renfrew

East Kilbride

Kilmarnock

Dumbarton

Clydebank

Arrochar

Inveraray

Rothesay

Ballachulish

Alexandria

Tarbert

Balloch

Browse thousands of different options on Cheapflights for your next trip

Top 2 airlines flying from Illinois to Glasgow Intl

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest£294	Average£495	FlexibilityNo cancel fee	On-time76%	Search Icelandair flights
British Airways	Cheapest£325	Average£616	FlexibilityNo cancel fee	On-time70%	Search British Airways flights

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

Cheapflights makes it easy to find Illinois to Glasgow Intl flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Glasgow Intl from Illinois.

Can Cheapflights find flights from Illinois to Glasgow Intl with no change fees?

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

Yes, Cheapflights offers price alerts on Illinois to Glasgow Intl flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.

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Cheap flights from Illinois to Glasgow Intl Airport from £195

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 5/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Illinois to Glasgow Intl

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

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Illinois to Glasgow Intl

Cheapest flights from Illinois to Glasgow IntlExplore the most affordable flight options available from Illinois to Glasgow Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 August 2025.

Explore the most affordable flight options available from Illinois to Glasgow Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 August 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Illinois to Glasgow Intl Airport that are best for you.

Best time to book a flight from Illinois to Glasgow Intl

Have a flexible travel schedule? Discover the best time to fly to Glasgow Intl from Illinois with our price prediction graph.

Cheapflights Insights

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

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

Related info for your journey

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

What are the most popular routes from Illinois to Glasgow Intl Airport?

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

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

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

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

Travelling to a place near Glasgow Intl Airport?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Illinois to Glasgow Intl

See prices for flight routes from nearby airports that may be better suited for you.

Top 2 airlines flying from Illinois to Glasgow Intl

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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 Illinois to Glasgow Intl?

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

Can Cheapflights find flights from Illinois to Glasgow Intl with no change fees?

Can Cheapflights notify me if prices for flights from Illinois to Glasgow Intl become cheaper?

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Cheapest flights from Illinois to Glasgow Intl
Explore the most affordable flight options available from Illinois to Glasgow Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 August 2025.