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Cheap flights from Illinois to Belfast City Airport from £281

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 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BHD
6 Sep — 13 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap 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 7 August 2026.

Tue 1/919:25 -
2 stops16h 25m
Tue 8/909:50 -
2 stops17h 35m
Deal found 2/8£637
Sun 15/1117:10 -
1 stop11h 10m
Thu 19/1107:40 -
1 stop12h 05m
Deal found 6/8£658
Tue 1/921:15 -
1 stop12h 05m
Tue 8/909:40 -
1 stop14h 35m
Deal found 2/8£682
Thu 5/1118:30 -
2 stops20h 00m
Mon 9/1107:20 -
2 stops16h 00m
Deal found 6/8£691
Thu 5/1117:10 -
1 stop11h 10m
Mon 9/1117:45 -
1 stop26h 00m
Deal found 6/8£695
Wed 25/1118:30 -
2 stops15h 00m
Sun 29/1111:10 -
2 stops35h 05m
Deal found 4/8£712
Thu 5/1112:27 -
2 stops14h 43m
Mon 9/1117:20 -
2 stops28h 54m
Deal found 6/8£719
Thu 17/919:05 -
1 stop17h 40m
Thu 24/906:30 -
1 stop15h 25m
Deal found 3/8£724
Sat 12/919:25 -
3 stops19h 25m
Fri 18/907:00 -
3 stops36h 21m
Deal found 6/8£730
Fri 18/913:00 -
2 stops21h 55m
Fri 25/909:50 -
2 stops18h 54m
Deal found 4/8£811
Sat 19/919:13 -
2 stops15h 42m
Sat 26/917:30 -
2 stops30h 49m
Deal found 5/8£972
Sat 12/914:40 -
2 stops13h 05m
Sun 13/918:20 -
3 stops32h 00m
Deal found 3/8£1,078

Find 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 7 August 2026.

Round-trip from

£658

One-way from

£281
British Airways
  • British Airways
  • 15/11-19/11
  • 2 total stops
  • 23h 15m total
  • Illinois to Belfast
Search Deals
8/9
  • 8/9
  • 2 total stops
  • 16h 25m 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 7 August 2026.
Use the filters below to find and compare flights from Illinois to Belfast City Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Tue 1/9

19:25-17:50

2 stops16h 25m

Belfast City

Tue 8/9

09:50-21:25

2 stops17h 35m

£637

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Sun 24/1

21:50-18:40

1 stop14h 50m

Belfast City

Thu 28/1

09:05-18:45

1 stop15h 40m

£664
Fastest return journey

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Tue 1/9

21:15-15:20

1 stop12h 05m

Belfast City

Tue 8/9

09:40-18:15

1 stop14h 35m

£682

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Thu 5/11

18:30-20:30

2 stops20h 00m

Belfast City

Mon 9/11

07:20-17:20

2 stops16h 00m

£691

ChicagoBelfast

MDW Chicago Midway - BHD Belfast City

MDWBHD

Chicago Midway

Thu 5/11

12:27-09:10

2 stops14h 43m

Belfast City

Mon 9/11

17:20-16:14

2 stops28h 54m

£719

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Thu 17/9

19:05-18:45

1 stop17h 40m

Belfast City

Thu 24/9

06:30-15:55

1 stop15h 25m

£724

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Sat 12/9

19:25-20:50

3 stops19h 25m

Belfast City

Fri 18/9

07:00-13:21

3 stops36h 21m

£730

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Sat 19/9

16:20-09:15

1 stop10h 55m

Belfast City

Sat 26/9

17:30-14:15

1 stop26h 45m

£770

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Sat 12/9

21:15-18:15

1 stop15h 00m

Belfast City

Fri 18/9

20:10-16:46

2 stops26h 36m

£776

ChicagoBelfast

MDW Chicago Midway - BHD Belfast City

MDWBHD

Chicago Midway

Fri 18/9

13:00-16:55

2 stops21h 55m

Belfast City

Fri 25/9

09:50-22:44

2 stops18h 54m

£811

Flights are sorted by cheapest return flights first.

Deals found on 5/8

Showing 1-10 of 23 resultsSorted by cheapest first
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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 14h 43m. British Airways provides one of the quickest options available for as low as £719. The distance from Illinois to Belfast City Airport is about 3647 mi. Both multi-stop and direct flights can be found to your destination and back.

  • 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
Carrickfergus
Bangor
Newcastle

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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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