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$338+ Cheap flights from Belfast to Illinois

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 1/29. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — ORD
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Belfast to Illinois

Cheapest flights from Belfast to Illinois
Explore the most affordable flight options available from Belfast to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This Booking.com deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/232:15 pmBHD - ORD
3 stops30h 45mMultiple Airlines
Mon 1/59:34 amORD - BHD
3 stops20h 41mMultiple Airlines
Deal found 12/16$1,243
This TravelUp deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2311:25 amBHD - ORD
1 stop34h 00mFinnair
Mon 1/54:11 pmORD - BHD
2 stops37h 19mFinnair
Deal found 12/16$1,327
This oojo deal was found by Cheapflights users on 12/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/237:25 pmBHD - ORD
1 stop26h 00mBritish Airways
Mon 1/56:30 pmORD - BHD
1 stop15h 35mBritish Airways
Deal found 12/16$1,430

Find flight deals from Belfast to Illinois

Keep the following information in mind while searching for Belfast to Illinois flight deals. Data was last updated December 18, 2025.

Round-trip from

$652
(Trip.com)

One-way from

$338
(Kiwi.com)
From Belfast to Illinois
Search Deals
One-way flight from Belfast to Illinois
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Belfast 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 2,558,603 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from Belfast to Illinois that are best for you.

Fly from

Belfast

Fly to

Illinois

Route

Depart

Return

Price

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sat 1/31

8:10 am-5:20 pm

2 stops15h 10m

Chicago O'Hare Intl

Sat 2/7

6:30 pm-5:40 pm

2 stops17h 10m

$652

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Fri 1/30

9:05 pm-2:45 pm

3 stops47h 40m

Chicago O'Hare Intl

Fri 2/6

7:15 am-3:10 pm

3 stops25h 55m

$703

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 1/29

9:05 am-5:00 pm

1 stop13h 55m

Chicago O'Hare Intl

Mon 2/2

6:25 pm-2:15 pm

1 stop13h 50m

$708

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mon 1/26

11:30 am-6:45 pm

1 stop13h 15m

Chicago O'Hare Intl

Thu 1/29

5:10 pm-2:00 pm

1 stop14h 50m

$2,534

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Thu 1/29

6:30 am-10:35 am

2 stops34h 05m

$338

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 1/26

10:20 am-1:13 pm

2 stops32h 53m

$383

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sat 1/3

10:25 pm-9:59 pm

3 stops53h 34m

$1,273

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Wed 1/7

6:50 pm-5:20 pm

3 stops52h 30m

$1,371

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Wed 1/7

6:35 am-6:45 pm

1 stop18h 10m

$3,485

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Best time to book a flight from Belfast to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Belfast with our price prediction graph.
Estimated round-trip 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 to Illinois
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 Belfast to Illinois. 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 Belfast to Illinois?

    There are many flights that can get you from Belfast to Illinois in 13h 55m. Fly via British Airways to get the fastest option. The distance between Belfast and Illinois is about 3644 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Belfast 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.

See more FAQs

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