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Cheap flights from Belfast City Airport to Illinois from £476

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 15/8. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — ORD
23 Jul — 30 Jul1
1 adult

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 18 July 2025.

Round-trip from

£521

One-way from

£476

Popular in

August

Cheapest in

September

Average price

£627
American Airlines
  • American Airlines
  • 16/9-24/9
  • 2 total stops
  • 38h 25m total
  • Belfast to Illinois
Search Deals
15/8
  • 15/8
  • 2 total stops
  • 21h 22m total
  • Belfast to Illinois
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (£1 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£18 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from Belfast City to Illinois

Cheapest flights from Belfast City to Illinois
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 18 July 2025.

Tue 16/916:25BHD - ORD
1 stop27h 25mAmerican Airlines
Wed 24/922:35ORD - BHD
1 stop11h 00mAmerican Airlines
Deal found 17/7£521
Sun 14/918:05BHD - ORD
1 stop23h 45mBritish Airways
Tue 23/922:35ORD - BHD
1 stop12h 55mBritish Airways
Deal found 17/7£523
Mon 15/906:30BHD - ORD
1 stop14h 10mDelta
Tue 23/917:00ORD - BHD
2 stops22h 15mDelta
Deal found 17/7£525
Mon 15/906:30BHD - ORD
1 stop14h 10mKLM
Mon 22/916:40ORD - BHD
1 stop22h 35mKLM
Deal found 17/7£526
Sun 14/906:30BHD - ORD
2 stops14h 30mMultiple Airlines
Wed 24/916:40ORD - BHD
1 stop18h 15mMultiple Airlines
Deal found 17/7£583
Mon 15/906:40BHD - ORD
2 stops20h 03mIberia
Mon 22/913:59ORD - BHD
2 stops24h 46mIberia
Deal found 17/7£669
Tue 16/910:20BHD - ORD
2 stops14h 40mAer Lingus
Wed 24/915:45ORD - BHD
2 stops14h 10mAer Lingus
Deal found 17/7£805
Tue 29/706:30BHD - ORD
2 stops21h 13mVirgin Atlantic
Sat 2/817:20ORD - BHD
2 stops45h 55mVirgin Atlantic
Deal found 17/7£1,226

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 18 July 2025.
Use the filters below to find and compare flights from Belfast City Airport to Illinois that are best for you.

Fly from

Belfast City

Fly to

Illinois

Route

Depart

Return

Price

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Tue 16/9

16:25-13:50

1 stop27h 25m

Chicago O'Hare Intl

Wed 24/9

22:35-15:35

1 stop11h 00m

£521

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Sun 14/9

18:05-11:50

1 stop23h 45m

Chicago O'Hare Intl

Tue 23/9

22:35-17:30

1 stop12h 55m

£523

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mon 15/9

06:30-14:40

1 stop14h 10m

Chicago O'Hare Intl

Tue 23/9

17:00-21:15

2 stops22h 15m

£525

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mon 15/9

06:30-14:40

1 stop14h 10m

Chicago O'Hare Intl

Mon 22/9

16:40-21:15

1 stop22h 35m

£526

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Sun 14/9

06:30-15:00

2 stops14h 30m

Chicago O'Hare Intl

Wed 24/9

16:40-16:55

1 stop18h 15m

£583

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mon 15/9

06:40-20:43

2 stops20h 03m

Chicago O'Hare Intl

Mon 22/9

13:59-20:45

2 stops24h 46m

£669

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Tue 16/9

10:20-19:00

2 stops14h 40m

Chicago O'Hare Intl

Wed 24/9

15:45-11:55

2 stops14h 10m

£805

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Tue 29/7

06:30-21:43

2 stops21h 13m

Chicago O'Hare Intl

Sat 2/8

17:20-21:15

2 stops45h 55m

£1,226

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Fri 15/8

07:00-22:22

2 stops21h 22m

£476

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Tue 12/8

18:45-14:00

2 stops25h 15m

£519

Flights are sorted by cheapest return flights first.

Deals found on 18/7

Showing 1-10 of 14 results
1
2

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.
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 Belfast City Airport to Illinois
No data available for this route at this time. Please check back soon.

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 18 July 2025.
See what other customers who have flown with Delta, KLM, andFinnair from Belfast City Airport to Illinois have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,958 reviews
Check prices

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Comfort

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Delta
8.0
Very Good
7,958 reviews
Delta
8.0
Very Good
7,958 reviews
Check prices

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Comfort

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
KLM
7.8
Good
1,374 reviews
Delta
8.0
Very Good
7,958 reviews
Check prices

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Comfort

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Finnair
7.6
Good
1,316 reviews
Delta
8.0
Very Good
7,958 reviews
Check prices

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Comfort

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
Virgin Atlantic
7.4
Good
655 reviews
Delta
8.0
Very Good
7,958 reviews
Check prices

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Comfort

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very Good
7,958 reviews
Check prices

Overall

8.0

Boarding

8.2

Entertainment

7.9

Food

7.3

Comfort

7.9

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Michael,Jul 2025

AMS - ATL

Overall it was great experience, with the exception of snack food. The food offered in two main meals was just fine but for the mid-flight snack, the only option was a large cookie, too sweet and high sugar content. Snacks at the back of the plane were also mainly sweets. There was one nice baked cheddar option but it quickly ran out.

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.

  • What are the cheapest airlines to fly from Belfast City Airport to Illinois one-way?

    The cheapet airlines for a one-way flight from Belfast City Airport to Illinois are Aer Lingus (£519), British Airways (£812), and Finnair (£1,165).

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

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

  • How can I find direct flights from Belfast City to Illinois?

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

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

    Yes. Cheapflights offers flight deals from Belfast City 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 Belfast City Airport to Illinois?

    Currently, January is the cheapest month in which you can book a flight from Belfast City Airport to Illinois (average of £595). Flying from Belfast City Airport to Illinois in July is currently the most expensive (average of £843). 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 Belfast City to Illinois

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Top airline flying from Belfast City to Illinois

Discover the top airline that operate flights from Belfast City 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 18 July 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£488Average£654FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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How does Cheapflights help users find flights from Belfast City to Illinois?

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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.

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