Find flights
When to book
Airlines
FAQs

Cheap flights from Illinois to Belfast City Airport from £210

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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BHD
16 Jul — 23 Jul1
1 adult

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 11 July 2025.

Round-trip from

£464

One-way from

£210
American Airlines
  • American Airlines
  • 9/9-16/9
  • 2 total stops
  • 36h 20m total
  • Illinois to Belfast
Search Deals
4/9
  • 4/9
  • 2 total stops
  • 21h 57m total
  • Illinois to Belfast
Search Deals

Find flight deals from Illinois to Belfast City

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 11 July 2025.

Tue 9/917:40ORD - BHD
1 stop10h 55mAmerican Airlines
Tue 16/916:25BHD - ORD
1 stop25h 25mAmerican Airlines
Deal found 11/7£464
Sun 24/822:35ORD - BHD
1 stop14h 10mBritish Airways
Mon 1/919:30BHD - ORD
1 stop22h 25mBritish Airways
Deal found 10/7£466
Mon 25/817:40ORD - BHD
2 stops17h 15mKLM
Mon 1/917:25BHD - ORD
1 stop26h 45mKLM
Deal found 11/7£522
Tue 9/919:17MDW - BHD
2 stops15h 38mDelta
Tue 16/906:30BHD - MDW
2 stops18h 05mDelta
Deal found 11/7£532
Thu 4/915:59STL - BHD
2 stops22h 46mBritish Airways
Fri 12/906:35BHD - STL
2 stops20h 31mBritish Airways
Deal found 9/7£560
Mon 25/819:25ORD - BHD
2 stops19h 00mMultiple Airlines
Mon 1/907:05BHD - ORD
2 stops20h 10mMultiple Airlines
Deal found 11/7£564
Fri 3/1016:15ORD - BHD
1 stop23h 00mDelta
Tue 7/1006:30BHD - ORD
1 stop13h 40mDelta
Deal found 9/7£565
Wed 13/818:42MDW - BHD
2 stops16h 13mKLM
Sun 24/806:30BHD - MDW
2 stops17h 07mKLM
Deal found 10/7£940
Mon 14/717:23STL - BHD
2 stops21h 52mDelta
Mon 21/706:30BHD - STL
2 stops20h 06mDelta
Deal found 9/7£1,439
Mon 14/717:37STL - BHD
2 stops21h 38mKLM
Mon 21/717:25BHD - STL
2 stops29h 22mKLM
Deal found 11/7£1,584
Tue 15/713:16STL - BHD
2 stops25h 54mMultiple Airlines
Mon 21/718:45BHD - STL
3 stops51h 37mMultiple Airlines
Deal found 9/7£1,709

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 11 July 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 9/9

17:40-10:35

1 stop10h 55m

Belfast City

Tue 16/9

16:25-11:50

1 stop25h 25m

£464

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 24/8

22:35-18:45

1 stop14h 10m

Belfast City

Mon 1/9

19:30-11:55

1 stop22h 25m

£466

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 25/8

17:40-16:55

2 stops17h 15m

Belfast City

Mon 1/9

17:25-14:10

1 stop26h 45m

£522

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Tue 9/9

19:17-16:55

2 stops15h 38m

Belfast City

Tue 16/9

06:30-18:35

2 stops18h 05m

£532

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Thu 4/9

15:59-20:45

2 stops22h 46m

Belfast City

Fri 12/9

06:35-21:06

2 stops20h 31m

£560

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 25/8

19:25-20:25

2 stops19h 00m

Belfast City

Mon 1/9

07:05-21:15

2 stops20h 10m

£564

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Fri 3/10

16:15-21:15

1 stop23h 00m

Belfast City

Tue 7/10

06:30-14:10

1 stop13h 40m

£565

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Wed 13/8

18:42-16:55

2 stops16h 13m

Belfast City

Sun 24/8

06:30-17:37

2 stops17h 07m

£940

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Thu 4/9

14:30-16:25

3 stops19h 55m

Belfast City

Fri 12/9

18:00-15:18

3 stops27h 18m

£1,966

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Thu 4/9

11:13-15:10

2 stops21h 57m

£210

Flights are sorted by cheapest return flights first.

Deals found on 10/7

Showing 1-10 of 16 results
1
2

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.

Reviews of airlines servicing Belfast City

Get insights into the airlines that provide service to Belfast City. 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 Belfast City. Reviews last updated 11 July 2025.
Read reviews from past customers who have flown with Delta, KLM, andAmerican Airlines from Illinois to Belfast City Airport. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
7,951 reviews
Check prices

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very Good
7,951 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,372 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
British Airways
6.6
Okay
7,109 reviews
Delta
8.0
Very Good
7,951 reviews
Check prices

Crew

8.5

Food

7.3

Overall

8.0

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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.

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

    To fly one-way, consider booking your trip with American Airlines, which is currently one of the cheapest options available, starting at £280. British Airways flights start at £289 while deals on Delta start at £319 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.

  • What is the cheapest month to book a flight from Illinois to Belfast City Airport?

    Currently, April is the cheapest month in which you can book a flight from Illinois to Belfast City Airport (average of £98). Flying from Illinois to Belfast City Airport in December is currently the most expensive (average of £116). 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

Travelling to a place near Illinois?

Book flights to Illinois if you plan to visit one of these locations
Newcastle
Bangor
Carrickfergus

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Illinois to Belfast City

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Belfast Intl flights
John F Kennedy Intl to Belfast City flights
Los Angeles to Belfast Intl flights
Newark to Belfast Intl flights
Boston to Belfast Intl flights
Los Angeles to Belfast City flights
Boston to Belfast City flights
LaGuardia to Belfast City flights
Atlanta to Belfast Intl flights
Orlando to Belfast Intl flights
O'Hare Intl to Belfast Intl flights
Dallas/Fort Worth to Belfast Intl flights
Philadelphia to Belfast City flights
Denver to Belfast Intl flights
Denver to Belfast City flights
Tampa to Belfast Intl flights
Portland to Belfast Intl flights
San Francisco to Belfast Intl flights
Miami to Belfast City flights
Miami to Belfast Intl flights
Seattle to Belfast City flights
Tampa to Belfast City flights
Kansas City to Belfast Intl flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2025 Cheapflights