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Cheap flights from Illinois to Belfast City Airport from £215

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 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BHD
14 Nov — 21 Nov1
1 adult
1 adult, Economy

Find flight deals from Illinois to Belfast City

Enter your travel dates to find the best prices.

Cheapest flights from Illinois to Belfast City
Explore the most affordable flight options available from Illinois to Belfast City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 15 October 2025.

Tue 2/1217:10ORD - BHD
1 stop11h 20mBritish Airways
Wed 6/506:50BHD - ORD
1 stop15h 05mBritish Airways
Deal found 14/10£487
Tue 2/1217:10ORD - BHD
1 stop11h 20mBritish Airways
Mon 4/519:30BHD - ORD
1 stop24h 20mBritish Airways
Deal found 14/10£489
Mon 1/1216:25ORD - BHD
1 stop18h 25mDelta
Tue 5/506:30BHD - ORD
1 stop13h 50mDelta
Deal found 14/10£503
Sun 30/1116:25ORD - BHD
1 stop18h 25mDelta
Tue 5/506:30BHD - ORD
2 stops16h 06mDelta
Deal found 14/10£506
Wed 3/1207:10ORD - BHD
2 stops27h 40mVirgin Atlantic
Sun 7/1217:20BHD - ORD
1 stop27h 00mVirgin Atlantic
Deal found 14/10£508
Sat 6/1216:25ORD - BHD
1 stop18h 25mDelta
Fri 8/506:30BHD - ORD
1 stop13h 50mDelta
Deal found 14/10£514
Tue 2/1213:14MDW - BHD
2 stops21h 36mDelta
Tue 5/506:30BHD - MDW
2 stops18h 01mDelta
Deal found 14/10£515
Fri 5/1216:25ORD - BHD
1 stop18h 25mDelta
Thu 7/506:30BHD - ORD
2 stops18h 11mDelta
Deal found 14/10£518
Tue 2/1217:10ORD - BHD
1 stop11h 20mBritish Airways
Sun 3/506:50BHD - ORD
1 stop13h 00mBritish Airways
Deal found 14/10£525
Wed 3/1221:45ORD - BHD
1 stop12h 50mBritish Airways
Tue 5/509:35BHD - ORD
1 stop14h 40mBritish Airways
Deal found 14/10£527
Sat 8/1118:30ORD - BHD
2 stops13h 20mMultiple Airlines
Fri 14/1107:00BHD - ORD
2 stops16h 20mMultiple Airlines
Deal found 14/10£530
Mon 1/1217:08ORD - BHD
2 stops17h 42mDelta
Sun 3/506:30BHD - ORD
1 stop13h 50mDelta
Deal found 14/10£541

Cheap flight deals from Illinois to Belfast City

Keep the following information in mind while searching for Illinois to Belfast City flight deals. Data was last updated 15 October 2025.

Round-trip from

£477

One-way from

£215
American Airlines
  • American Airlines
  • 12/11-19/11
  • 3 total stops
  • 25h 17m total
  • Illinois to Belfast
Search Deals
8/12
  • 8/12
  • 3 total stops
  • 51h 35m total
  • Illinois to Belfast
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Illinois to Belfast City 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 15 October 2025.
Use the filters below to find and compare flights from Illinois to Belfast City Airport that are best for you.

Fly from

Illinois

Fly to

Belfast City

Route

Depart

Return

Price

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Tue 2/12

17:10-10:30

1 stop11h 20m

Belfast City

Thu 7/5

09:35-18:15

1 stop14h 40m

£487

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Tue 2/12

17:10-10:30

1 stop11h 20m

Belfast City

Wed 6/5

06:50-15:55

1 stop15h 05m

£487

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Tue 2/12

17:10-10:30

1 stop11h 20m

Belfast City

Mon 4/5

19:30-13:50

1 stop24h 20m

£489

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 1/12

16:25-21:00

1 stop22h 35m

Belfast City

Mon 4/5

17:25-14:20

1 stop26h 55m

£503

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 1/12

16:25-16:50

1 stop18h 25m

Belfast City

Wed 6/5

17:25-14:20

1 stop26h 55m

£503

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 30/11

16:25-21:00

1 stop22h 35m

Belfast City

Fri 8/5

06:30-14:20

1 stop13h 50m

£503

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Tue 2/12

14:30-16:50

2 stops20h 20m

Belfast City

Wed 6/5

06:30-14:20

1 stop13h 50m

£503

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Tue 2/12

14:30-16:50

2 stops20h 20m

Belfast City

Tue 5/5

17:25-14:20

1 stop26h 55m

£503

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Tue 2/12

17:07-16:50

2 stops17h 43m

Belfast City

Fri 8/5

06:30-21:36

2 stops21h 06m

£506

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 1/12

17:08-16:50

2 stops17h 42m

Belfast City

Fri 8/5

06:30-20:35

2 stops20h 05m

£506

Flights are sorted by cheapest return flights first.

Deals found on 14/10

Showing 1-10 of 41 results
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Best time to book a flight from Illinois to Belfast City

Have a flexible travel schedule? Discover the best time to fly to Belfast City 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 Belfast City Airport
No data available for this route at this time. Please check back soon.

Related info for your journey

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

  • How long is the flight from Illinois to Belfast City Airport?

    A quick flight from Illinois to Belfast City Airport can take about 11h 20m. British Airways provides one of the quickest options available for as low as £487. The distance from Illinois to Belfast City Airport is about 3644 mi. Both multi-stop and direct flights can be found to your destination and back.

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

    To fly one-way, consider booking your trip with British Airways, which is currently one of the cheapest options available, starting at £280. KLM flights start at £306 while deals on Delta start at £343 one-way.

  • What are the most popular routes from Illinois to Belfast City Airport?

    The most popular route from Illinois to Belfast City Airport is Chicago O'Hare Intl - Belfast City. You may also consider Chicago Midway - Belfast City or Lambert-St Louis - Belfast City.

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

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

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

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

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

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

See more FAQs

Travelling to a place near Belfast City Airport?

Book flights to Belfast City Airport if you plan to visit one of these locations
Newcastle
Bangor
Carrickfergus

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Alternative routes for Illinois to Belfast City

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Fly with Cheapflights

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

Cheapflights helps you search for flights from Illinois to Belfast City via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from Illinois to Belfast City?

Cheapflights simply makes it quick and affordable to book flights from Illinois to Belfast City 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 Illinois to Belfast City with no change fees?

Need flexible booking options for your flight to Belfast City from Illinois? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from Illinois to Belfast City become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Belfast City from Illinois today and book when prices fit your budget.

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