$218+ Cheap flights from Illinois to the United Kingdom
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 9/4. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LHR
Mar 15 — Mar 221
1 adult, Economy
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Find cheap flights from Illinois to United Kingdom with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Illinois to United Kingdom
Keep the following information in mind while searching for Illinois to United Kingdom flight deals. Data was last updated March 10, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $518 (Mytrip) |
One-way from | $218 (oojo) |
Popular in | June |
Cheapest in | February |
Average price | $709 |
Good round-trip deal | $678 or less |
Good one-way deal | $460 or less |
Find flight deals from Illinois to United Kingdom
Cheapest flights from Illinois to United KingdomExplore the most affordable flight options available from Illinois to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 10, 2025.
Explore the most affordable flight options available from Illinois to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 10, 2025.
This oojo deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/256:30 pmORD - MAN
1 stop10h 15mIcelandair
Wed 12/311:55 amMAN - ORD
1 stop11h 25mIcelandair
Deal found 3/10![Icelandair logo]()
$511
This Mytrip deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/67:30 pmORD - MAN
1 stop10h 10mMultiple Airlines
Tue 4/228:05 pmMAN - ORD
3 stops42h 30mMultiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$549
This oojo deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/317:30 pmORD - GLA
1 stop9h 20mIcelandair
Tue 4/81:35 pmGLA - ORD
1 stop10h 45mIcelandair
Deal found 3/10![Icelandair logo]()
$552
This Ticket deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/67:35 amORD - MAN
1 stop18h 10mVirgin Atlantic
Tue 4/225:55 amMAN - ORD
1 stop14h 45mVirgin Atlantic
Deal found 3/9![Virgin Atlantic logo]()
$584
This oojo deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/86:00 pmORD - LHR
1 stop18h 50mTAP AIR PORTUGAL
Wed 10/226:00 amLHR - ORD
1 stop16h 10mTAP AIR PORTUGAL
Deal found 3/10![TAP AIR PORTUGAL logo]()
$586
This Mytrip deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/67:15 pmORD - LTN
2 stops20h 15mMultiple Airlines
Sun 4/132:10 pmLTN - ORD
2 stops32h 00mMultiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$586
This Gotogate deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/237:30 pmORD - LGW
1 stop13h 10mIcelandair
Wed 4/303:40 pmLGW - ORD
1 stop11h 35mIcelandair
Deal found 3/8![Icelandair logo]()
$586
This Ticket deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/237:30 pmORD - LHR
1 stop18h 50mIcelandair
Wed 4/301:05 pmLHR - ORD
1 stop11h 15mIcelandair
Deal found 3/9![Icelandair logo]()
$587
This Cheapflightsfares deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/165:45 pmORD - LHR
Nonstop7h 35mIberia
Wed 4/239:15 amLHR - ORD
Nonstop8h 30mIberia
Deal found 3/9![Iberia logo]()
$588
This Norse deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Norse is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/145:07 pmORD - LGW
1 stop34h 53mMultiple Airlines
Tue 4/2910:00 amLGW - ORD
1 stop34h 26mMultiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$588
This Bravofly deal was found by Cheapflights users on 3/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/233:45 pmORD - LHR
1 stop10h 15mAer Lingus
Wed 4/301:25 pmLHR - ORD
1 stop11h 35mAer Lingus
Deal found 3/9![Aer Lingus logo]()
$589
This Cheapflightsfares deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/239:15 pmORD - GLA
1 stop11h 25mBritish Airways
Thu 10/210:00 amGLA - ORD
1 stop11h 55mBritish Airways
Deal found 3/10![British Airways logo]()
$589
Find flights from Illinois to United Kingdom within your budget
Customize your flight search to find flights from Illinois to United Kingdom 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 2,558,603 searches. Data last updated March 10, 2025.
Fly from
Illinois
Fly to
United Kingdom
Route
Depart
Return
Price
ChicagoManchester
ORD - MAN
ORDMAN
Chicago O'Hare Intl
Sun 4/6
7:30 pm-11:40 am
1 stop10h 10m
Manchester
Sun 4/27
1:05 pm-9:15 pm
1 stop14h 10m
$518
ChicagoManchester
ORD - MAN
ORDMAN
Chicago O'Hare Intl
Sun 4/6
7:30 pm-11:40 am
1 stop10h 10m
Manchester
Tue 4/22
8:05 pm-8:35 am
3 stops42h 30m
$549
ChicagoGlasgow
ORD - GLA
ORDGLA
Chicago O'Hare Intl
Mon 3/31
7:30 pm-10:50 am
1 stop9h 20m
Glasgow Intl
Tue 4/8
1:35 pm-6:20 pm
1 stop10h 45m
$552
ChicagoManchester
ORD - MAN
ORDMAN
Chicago O'Hare Intl
Sun 4/6
7:35 am-7:45 am
1 stop18h 10m
Manchester
Tue 4/22
5:55 am-2:40 pm
1 stop14h 45m
$584
ChicagoLondon
ORD - LHR
ORDLHR
Chicago O'Hare Intl
Mon 4/28
2:55 pm-8:05 am
1 stop11h 10m
London Heathrow
Wed 5/7
2:25 pm-5:00 pm
Nonstop8h 35m
$586
ChicagoLondon
ORD - LTN
ORDLTN
Chicago O'Hare Intl
Sun 4/6
7:15 pm-9:30 pm
2 stops20h 15m
London Luton
Sun 4/13
2:10 pm-4:10 pm
2 stops32h 00m
$586
ChicagoLondon
ORD - LGW
ORDLGW
Chicago O'Hare Intl
Wed 4/23
7:30 pm-2:40 pm
1 stop13h 10m
London Gatwick
Wed 4/30
3:40 pm-9:15 pm
1 stop11h 35m
$586
ChicagoLondon
ORD - LGW
ORDLGW
Chicago O'Hare Intl
Mon 4/14
5:07 pm-10:00 am
1 stop34h 53m
London Gatwick
Tue 4/29
10:00 am-2:26 pm
1 stop34h 26m
$588
ChicagoLondon
ORD - LHR
ORDLHR
Chicago O'Hare Intl
Wed 4/23
3:45 pm-8:00 am
1 stop10h 15m
London Heathrow
Wed 4/30
1:25 pm-7:00 pm
1 stop11h 35m
$589
ChicagoLondon
ORD - LGW
ORDLGW
Chicago O'Hare Intl
Sat 4/5
6:15 pm-8:25 pm
2 stops44h 10m
London Gatwick
Tue 4/8
4:25 pm-4:10 pm
1 stop29h 45m
$590
Showing 1-10 of 60 results
Best time to book a flight from Illinois to United Kingdom
Have a flexible travel schedule? Discover the best time to fly to United Kingdom from Illinois with our price prediction graph.
Estimated round-trip 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.
Travel insights for flights from Illinois to United Kingdom
Get recent, data-driven insights about flights from Illinois to United Kingdom including ideal travel times, pricing trends, and more.
What is the cheapest month to book a flight from Illinois to United Kingdom?
Currently, November is the cheapest month in which you can book a flight from Illinois to United Kingdom (average of $661). Flying from Illinois to United Kingdom in June is currently the most expensive (average of $1,127). 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 IL to GB?
Find hourly flight availability from Illinois to United Kingdom. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 10, 2025.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to United Kingdom as you normally would.
Weekly flight availability from Illinois to United Kingdom
Explore weekly flight availability from Illinois to United Kingdom. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated March 10, 2025.
The most flights from USIL to GB0 are scheduled on a Monday (38 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (37 on average).
Rainfall in United Kingdom by month
Plan your trip to United Kingdom by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in United Kingdom ranges from 1.6 - 2.8 inches per month. January is typically the wettest month, when rainfall can reach 2.8 in. July is typically the driest time to visit United Kingdom when rainfall is around 1.6 in.
Temperature in United Kingdom by month
Plan your trip to United Kingdom by taking into account the average temperature totals by month.
If weather is an important factor for your trip to United Kingdom, 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 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).
Reviews of airlines servicing United Kingdom
Get insights into the airlines that provide service to United Kingdom. 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 United Kingdom. Reviews last updated March 10, 2025.
Get a feel of what it's like to fly with Delta, KLM and Finnair from Illinois to United Kingdom by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Food
7.3
Entertainment
7.9
Overall
8.0
Boarding
8.2
Comfort
8.0
Reviews
1 / 20
10.0
Aaron,Oct 2024
LAX - LHR
Crew
8.5
Food
7.3
Entertainment
7.9
Overall
8.0
Boarding
8.2
Comfort
8.0
Reviews
1 / 20
10.0
Aaron,Oct 2024
LAX - LHR
Crew
8.5
Food
7.3
Entertainment
7.9
Overall
8.0
Boarding
8.2
Comfort
8.0
Reviews
1 / 20
10.0
Aaron,Oct 2024
LAX - LHR
Crew
8.5
Food
7.3
Entertainment
7.9
Overall
8.0
Boarding
8.2
Comfort
8.0
Reviews
1 / 20
10.0
Aaron,Oct 2024
LAX - LHR
Crew
8.5
Food
7.3
Entertainment
7.9
Overall
8.0
Boarding
8.2
Comfort
8.0
Reviews
1 / 20
10.0
Aaron,Oct 2024
LAX - LHR
Crew
8.5
Food
7.3
Entertainment
7.9
Overall
8.0
Boarding
8.2
Comfort
8.0
Reviews
1 / 20
10.0
Aaron,Oct 2024
LAX - LHR
Related info for your journey
Find useful and relevant information for your journey from Illinois to United Kingdom. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Illinois to United Kingdom
See prices for flight routes from nearby airports that may be better suited for you.
Top 10 airlines flying from Illinois to United Kingdom
Discover the top 10 airlines that operate flights from Illinois to United Kingdom. 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 2,558,603 searches. Data last updated March 10, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$381 | Average$598 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$451 | Average$941 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$466 | Average$649 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$506 | Average$762 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$516 | Average$757 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$543 | Average$819 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$547 | Average$918 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$554 | Average$936 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$566 | Average$733 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$571 | Average$828 | FlexibilityNo cancel fee | On-time75% |