Cheap flights from Belfast City Airport to Illinois from £466
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 22/9. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap flight deals from Belfast City to Illinois
Keep the following information in mind while searching for Belfast City to Illinois flight deals. Data was last updated 13 June 2025.
Find flight deals from Belfast City to Illinois
Cheapest flights from Belfast City to IllinoisExplore the most affordable flight options available from Belfast City to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.
Explore the most affordable flight options available from Belfast City to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 13 June 2025.
Cheapflights Fare Finder
Customise your flight search to find flights from Belfast City 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 13 June 2025.
Use the filters below to find and compare flights from Belfast City Airport to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Price
BelfastChicago
BHD - ORD
BHDORD
Belfast City
Mon 22/9
06:40-14:50
1 stop14h 10m
Chicago O'Hare Intl
Mon 29/9
21:15-17:30
1 stop14h 15m
BelfastChicago
BHD - ORD
BHDORD
Belfast City
Mon 22/9
17:25-14:10
1 stop26h 45m
Chicago O'Hare Intl
Mon 29/9
17:45-16:55
2 stops17h 10m
BelfastChicago
BHD - ORD
BHDORD
Belfast City
Sun 7/9
15:50-11:50
1 stop26h 00m
Chicago O'Hare Intl
Sun 14/9
17:45-13:05
1 stop13h 20m
BelfastChicago
BHD - ORD
BHDORD
Belfast City
Thu 14/8
17:25-18:05
2 stops30h 40m
Chicago O'Hare Intl
Thu 21/8
16:20-16:55
1 stop18h 35m
BelfastChicago
BHD - ORD
BHDORD
Belfast City
Mon 4/8
18:50-14:00
2 stops25h 10m
Chicago O'Hare Intl
Mon 11/8
15:45-12:50
2 stops15h 05m
BelfastChicago
BHD - ORD
BHDORD
Belfast City
Mon 28/7
06:30-14:10
1 stop13h 40m
Chicago O'Hare Intl
Mon 4/8
16:20-21:15
1 stop22h 55m
BelfastChicago
BHD - ORD
BHDORD
Belfast City
Tue 29/7
06:35-14:40
1 stop14h 05m
Chicago O'Hare Intl
Fri 8/8
21:15-15:30
1 stop12h 15m
Best time to book a flight from Belfast City to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Belfast City with our price prediction graph.
Cheapflights Insights
Everything you need to know about your flight from Belfast City Airport to Illinois
Rainfall in Illinois by month
Plan your trip to Illinois by taking into account the average rainfall totals by month.
In terms of precipitation, rainfall in Illinois ranges from 43.0 - 125.0 inches per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Illinois when rainfall is around 43.0 mm.
Temperature in Illinois by month
Plan your trip to Illinois by taking into account the average temperature totals by month.
If weather is an important factor for your trip to Illinois, 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 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).
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 13 June 2025.
Boarding
Food
Crew
Comfort
Overall
Entertainment
Reviews
Kim,May 2025
PIH - SLC
Boarding
Food
Crew
Comfort
Overall
Entertainment
Reviews
Kim,May 2025
PIH - SLC
Boarding
Food
Crew
Comfort
Overall
Entertainment
Reviews
Kim,May 2025
PIH - SLC
Boarding
Food
Crew
Comfort
Overall
Entertainment
Reviews
Kim,May 2025
PIH - SLC
Boarding
Food
Crew
Comfort
Overall
Entertainment
Reviews
Kim,May 2025
PIH - SLC
Boarding
Food
Crew
Comfort
Overall
Entertainment
Reviews
Kim,May 2025
PIH - SLC
Related info for your journey
Find useful and relevant information for your journey from Belfast City to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Belfast City to Illinois
See prices for flight routes from nearby airports that may be better suited for you.
Fly with Cheapflights
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How does Cheapflights help users find flights from Belfast City to Illinois?
Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Belfast City 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 Belfast City to Illinois?
Cheapflights simply makes it quick and affordable to book flights from Belfast City 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 Belfast City to Illinois with no change fees?
Cheapflights does show flights with no change fees to all users. To see these options for flights from Belfast City to Illinois, users can toggle the no change fees filter when performing a flight search.
Can Cheapflights notify me if prices for flights from Belfast City to Illinois become cheaper?
Yes, Cheapflights offers price alerts on Belfast City to Illinois 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.