$463 Find Cheap Flights from Glasgow to Illinois

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Glasgow to Illinois departing on 9/23. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Illinois

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Glasgow to Illinois, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Glasgow to Illinois, as well as popular online travel agencies
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Cheap Flights from Glasgow to Illinois

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
St. Louis
St. Louis2 stops$1,083
St. Louis
St. Louis2 stops$1,083

Book Cheap Glasgow to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Glasgow to Illinois that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Glasgow to Illinois

Tue, Sep 2 - Sat, Sep 6
 Logo
7:35 am - 9:15 pmGLA-ORD
19h 40m2 stops
 Logo
7:25 pm - 4:10 pmORD-GLA
14h 45m2 stops
Thu, Sep 4 - Mon, Sep 8
 Logo
1:45 pm - 4:10 pmGLA-ORD
32h 25m2 stops
 Logo
7:15 pm - 10:10 pmORD-GLA
20h 55m2 stops
Fri, Sep 12 - Sat, Sep 20
Icelandair Logo
2:20 pm - 9:15 pmGLA-ORD
12h 55m1 stop
Icelandair Logo
7:25 pm - 1:25 pmORD-GLA
12h 00m1 stop
$621Icelandair
Find Deal
Sun, Sep 14 - Tue, Sep 23
Icelandair Logo
2:20 pm - 9:15 pmGLA-ORD
12h 55m1 stop
Icelandair Logo
7:25 pm - 1:25 pmORD-GLA
12h 00m1 stop
$641Icelandair
Find Deal
Tue, Aug 26 - Tue, Sep 9
British Airways Logo
5:50 am - 11:55 amGLA-ORD
12h 05m1 stop
British Airways Logo
4:55 pm - 9:40 amORD-GLA
10h 45m1 stop
$662British Airways
Find Deal
Tue, Aug 26 - Tue, Sep 9
British Airways Logo
7:00 am - 1:50 pmGLA-ORD
12h 50m1 stop
British Airways Logo
4:55 pm - 9:40 amORD-GLA
10h 45m1 stop
$674British Airways
Find Deal
Tue, Sep 2 - Sat, Sep 6
Aer Lingus Logo
8:35 am - 7:00 pmGLA-ORD
16h 25m1 stop
Aer Lingus Logo
9:15 pm - 3:25 pmORD-GLA
12h 10m1 stop
$684Aer Lingus
Find Deal
Fri, Sep 12 - Fri, Sep 19
Aer Lingus Logo
8:35 am - 2:00 pmGLA-ORD
11h 25m1 stop
Aer Lingus Logo
3:45 pm - 8:05 amORD-GLA
10h 20m1 stop
$689Aer Lingus
Find Deal
Mon, Sep 8 - Wed, Sep 17
American Airlines Logo
5:50 am - 3:57 pmGLA-ORD
16h 07m2 stops
American Airlines Logo
9:15 pm - 2:15 pmORD-GLA
11h 00m1 stop
$713American Airlines
Find Deal
Mon, Sep 8 - Tue, Sep 23
American Airlines Logo
5:50 am - 4:00 pmGLA-ORD
16h 10m2 stops
American Airlines Logo
8:40 pm - 10:00 pmORD-GLA
19h 20m1 stop
$723American Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Glasgow to Illinois flights

Get data-powered insights and trends into flights from Glasgow to Illinois to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Glasgow Intl Airport to Illinois?

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Glasgow Intl Airport to Illinois, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Glasgow Intl Airport to Illinois is February, when tickets cost $570 (return) on average. On the other hand, the most expensive months are July and August, when the average cost of round-trip tickets is $973 and $871 respectively.

What’s the cheapest day of the week to fly from Glasgow to Illinois?

The average price of all round-trip flights from Glasgow Intl Airport to Illinois clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Glasgow to Illinois, look for departures on Wednesdays and avoid leaving on a Thursday, as it's usually the priciest day. When flying back from Illinois, Tuesday is the cheapest day to fly and Saturday is the most expensive.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Glasgow Intl Airport to Illinois, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Glasgow Intl Airport to Illinois, you should book around 4 weeks before departure, which saves you about 51% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.


Good to know

Low seasonFebruary
Cheapest flight$463
Best time to beat the crowds with an average 43% drop in price.
Most popular time to fly and prices are also 0% lower on average.
Flight from Glasgow to Chicago

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Glasgow to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Glasgow to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Glasgow to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Glasgow to Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Glasgow to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Glasgow to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Glasgow to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Glasgow to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Illinois?

    The cheapest time of day to fly to Illinois is generally in the morning, when round-trip flights cost $885 on average. The most expensive time of day to fly to Illinois is generally in the morning, which is peak travel time and where the average cost of a ticket is $885.

Reviews of the top 3 airlines serving from Glasgow to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Glasgow to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Glasgow to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
Aer LingusOverall score based on 1191 reviews
7.1Comfort
7.3Boarding
6.4Food
8.0Crew
6.8Entertainment
Airline reviews

I wish Aer Lingus offered free wifi and had power outlets at the seats. Overall, the flight was good. Seat back entertainment had some interesting options. Food and snack options were mediocre at best. I enjoyed the canned red wine.

8.0 ExcellentAnonymous, Jul 2025DUB - BOS
Read more Aer Lingus reviews

I wish Aer Lingus offered free wifi and had power outlets at the seats. Overall, the flight was good. Seat back entertainment had some interesting options. Food and snack options were mediocre at best. I enjoyed the canned red wine.

I had an awful experience at the ticketing agent stand. I had purchased three tickets, one of which I had the maiden name of a passenger on the ticket. They refused to help, assist, and actually delayed our process and had us miss an opportunity to purchase a ticket on the same flight. I was sent through multiple phone calls, none of which helped, and the person at the counter was the person who told me to both call Aer Lingus for help and was the person who said they could not fulfill my request that they were privy to from the beginning. My partner is still stuck in Scotland, racking up thousands of dollars in additional fees and tickets. I am very upset and two of my tickets went unused. I will never be using Aer Lingus ever again and I will continue to complain about them.

This was the most expensive economy flight per minute of flight time ever. But the quality was lacking. Extremely Aer Lingus rude staff at LHR said that the flight from London to Dublin (Ireland) was “NOT international.” Horrified at the colonial and imperial perspective. Seats were dirty with trash in seat pockets. Airline doesn’t clean or care about hygiene and safety.

When I booked the flight, I wasn't aware that this was a "no frills" flight. No wifi, no reclining seat, no complimentary soft drinks.

In business class overhead bins were minuscule. Had to use cabin staff to find a place for my carry-on bag. Boarding process was shambolic, as “passengers who needed assistance in boarding” absorbed an excessive amount of time and attention that Aer Lingus was apparently unprepared for.

Aer Lingus was fabulous.nhowever, Aiirfare Assist who Kayak routes me to to purchase tickets for m was awful. They messed up my reservation so bad that after about six hours on the phone with them over the week before departure, I had been choice but to show up at the airport. The Aer Lingus staff were amazing and got it sorted out but I would recommend not using Airfare Assist.

Dublin to Boston was decent. Food and entertainment was included and that was expected for the rate paid.

Flight was on time. Boarding was quick and efficient. Seats were comfortable. Food was fine.

The ease of boarding was good. I wish they had something to eat on the plane.

Seats were less comfortable and tight from Newark to Dublin, than my second flight ( small segment from Dublin to Lyon). Movie audio was with frying sound overall. Yet the worst was as follows: one male, (dark hair , glasses on) from the crew member was so cold and rough, while I remained with constancy polite and kind. Per exple with the noise level I could not hear him at first for beverages, he rolled his eyes at the third times I finally heard him. From the start, loading my small hand bags , he directly spoke to me and said “ I had to keep my shopping bad by my seat, under , while there was sufficient room and I was among the last to sit. I show him the space , his face was always dull, stoic, not welcoming as the usual crew members from any airline companies are. When I think of my experience I liard w Aer Lingus, this is the image that gets back to me. Needless to say that as a passenger and client, I felt belittled since all this happened in front of the surrendering passengers. It s an affront and not a pleasant feeling especially when being traveling which oftentimes involves stress with carrying, and making it on time. I m not happy with the experience I had to be honest and I fly four times a year. Thank you for allowing me to share this statement with your company.

Good service. No complementary food for international flight. WiFi kinda pricey. Got the job done for the right price.

Still one of my favorite airlines, but the entertainment options were a bit lacking. It didn't help that my screen didn't work on one of the legs of the trip.

Everything was good. Only issue comes from being vegan and flying. The food options are super limited.

Overall good for an economy fare. IMO the movie selection could be improved. Great that you can now connect bluetooth headphones to the entertainment system.

Paid for a Premium seat...minimal recline, no footrest. Maybe slightly wider than a cheap economy seat. Zero chance of getting any rest on this plane

Comfort of seats is not good. Like sitting on a rock for 6 hours. Also no in flight food and limited beverages unless you pay is not nice. Need flight to be dark during the “night” but attendants don’t ask for shades to be lowered..

Seats in premier saga class were narrow and hard. Very uncomfortable for a 5-hour flight.

Iceland airlines doesn't provide any meal on flight to and from New York, except water and soda. Airline over charge for checking in luggage. I'm really upset.

I had an exit row and so was Comfortable on the long flight.

The seats on this airline are sooo small, even for a petite person. I felt like the seat tilted forward and I was fighting to stay in it. The lavatory is horribly small, with a wet floor because the sink is so small you can't help but splash the water all over when washing up.

Excellent everywhere but Philly, the most rotten airport in the world.

Check in was not the greatest as had to talk to an agent to clarify things and then he transferred us to another agent who had difficulty processing my credit card as there was a system glitch and not a card error.

I was put into business class. Wow! My flight attendant was great! The food amazing’

The gate at London Gatwick had confusing signs for the different zones and the staff seemed harried because people didn't know when it was their turn to come to the desk. Plus, with there were too many carry-on bag travelers, myself included. The charge scheme for checking bags is frustrating. If you travel light, you want the freedom to leave as soon as you deplane. When you are forced to gate-check your bag simply because the flight is fully booked, you lose whatever time you'd hoped to save because you're still stuck waiting for your bag to come off the conveyor belt.

Not so good with their baggage handling as they damaged one of my check in luggage

All went well on the flight, not happy of course with having to pay for a seat and in hold luggage of £50

On time. Clean. Efficient. Just what is required for the short hop.

bad, made it to connecting flight and they didnt let me board

Our luggage didn’t arrive with us, that puts a damper on the whole trip.

This flight from London to Chicago was actually on an AA airline. I did book through BA but the flight was AA. Great flight, hectic in Chicago, I wouldn't choose to fly through Chicago again, but that's not the airlines fault. The flight itself was great.

Everything you need to know for your flight from Glasgow to Illinois

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