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Cheap flights from Illinois to Belfast from £214

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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BHD
23 Nov — 30 Nov1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Illinois to Belfast

Enter your travel dates to find the best prices.

Cheapest flights from Illinois to Belfast
Explore the most affordable flight options available from Illinois to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 24 October 2025.

Wed 3/1210:35ORD - BHD
2 stops24h 15mVirgin Atlantic
Sun 7/1206:30BHD - ORD
1 stop13h 50mVirgin Atlantic
Deal found 23/10£509
Sat 15/1114:31ORD - BFS
3 stops19h 39mMultiple Airlines
Mon 17/1122:20BFS - ORD
3 stops46h 40mMultiple Airlines
Deal found 23/10£581
Tue 25/1118:25ORD - BHD
1 stop14h 25mBritish Airways
Mon 1/1219:25BHD - ORD
2 stops29h 55mBritish Airways
Deal found 23/10£594
Wed 3/1216:25ORD - BHD
1 stop18h 25mKLM
Sun 7/1206:30BHD - ORD
1 stop13h 50mKLM
Deal found 21/10£617
Sat 15/1114:31ORD - BHD
3 stops22h 04mMultiple Airlines
Mon 17/1110:15BHD - ORD
3 stops34h 16mMultiple Airlines
Deal found 23/10£631
Wed 3/1213:17ORD - BHD
2 stops13h 53mAmerican Airlines
Sun 7/1209:10BHD - ORD
2 stops16h 29mAmerican Airlines
Deal found 21/10£651
Sat 22/1114:01ORD - BFS
3 stops27h 49mMultiple Airlines
Sat 29/1105:45BFS - ORD
2 stops14h 15mMultiple Airlines
Deal found 23/10£987
Fri 24/1018:00ORD - BFS
2 stops16h 00mMultiple Airlines
Sun 26/1013:45BFS - ORD
2 stops26h 20mMultiple Airlines
Deal found 23/10£998
Tue 25/1110:47MDW - BHD
2 stops24h 03mDelta
Mon 1/1206:30BHD - MDW
2 stops16h 09mDelta
Deal found 23/10£1,048
Sat 6/1216:05STL - BFS
2 stops20h 25mMultiple Airlines
Sat 13/1205:45BFS - STL
3 stops38h 10mMultiple Airlines
Deal found 22/10£1,733

Cheap flight deals from Illinois to Belfast

Keep the following information in mind while searching for Illinois to Belfast flight deals. Data was last updated 24 October 2025.

Round-trip from

£509

One-way from

£214
Virgin Atlantic
  • Virgin Atlantic
  • 3/12-7/12
  • 3 total stops
  • 38h 05m total
  • Illinois to Belfast
Search Deals
9/1
  • 9/1
  • 2 total stops
  • 19h 29m total
  • Illinois to Belfast
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Illinois to Belfast 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 24 October 2025.
Use the filters below to find and compare flights from Illinois to Belfast that are best for you.

Fly from

Illinois

Fly to

Belfast

Route

Depart

Return

Price

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 3/12

10:35-16:50

2 stops24h 15m

Belfast City

Sun 7/12

06:30-14:20

1 stop13h 50m

£509

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Thu 19/3

18:10-14:00

1 stop14h 50m

Belfast City

Tue 31/3

09:35-18:15

1 stop14h 40m

£516

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Thu 19/3

21:45-16:40

1 stop13h 55m

Belfast City

Tue 31/3

06:35-17:33

2 stops16h 58m

£528

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 18/3

22:45-14:15

1 stop10h 30m

Belfast City

Sun 22/3

20:25-14:50

1 stop23h 25m

£528

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 18/3

21:45-14:15

1 stop11h 30m

Belfast City

Sun 22/3

06:30-17:33

2 stops16h 03m

£535

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Sun 1/3

06:45-16:50

2 stops28h 05m

Belfast City

Thu 5/3

06:30-16:50

2 stops16h 20m

£562

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Wed 1/4

09:30-16:55

2 stops25h 25m

Belfast City

Sun 5/4

17:25-08:50

2 stops45h 25m

£571

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Sat 15/11

14:31-16:10

3 stops19h 39m

Belfast Intl

Mon 17/11

22:20-15:00

3 stops46h 40m

£581

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Fri 9/1

20:15-22:00

2 stops19h 45m

Belfast Intl

Sat 17/1

12:45-14:45

3 stops32h 00m

£583

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Sun 15/3

21:25-18:55

2 stops16h 30m

Belfast Intl

Fri 20/3

08:05-21:00

3 stops41h 55m

£660

Flights are sorted by cheapest return flights first.

Deals found on 22/10

Showing 1-10 of 17 results
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Best time to book a flight from Illinois to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast 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
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. 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?

    For as low as £516, Virgin Atlantic can have you in Belfast from Illinois in 14h 50m. Airlines will cover a distance of 3644 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

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

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

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Illinois to Belfast 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

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

Deals for Illinois to Belfast flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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

Cheapflights helps you find that perfect flight to Belfast from Illinois by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Illinois to Belfast with no change fees?

Need flexible booking options for your flight to Belfast 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 become cheaper?

Yes! Start tracking prices for Illinois to Belfast flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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