Find flights
When to book
Airlines
FAQs

Cheap flights from Illinois to Northern Ireland 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 — BFS
16 Jul — 23 Jul1
1 adult

Cheap flight deals from Illinois to Northern Ireland

Keep the following information in mind while searching for Illinois to Northern Ireland 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 Northern Ireland
Search Deals
4/9
  • 4/9
  • 2 total stops
  • 21h 57m total
  • Illinois to Northern Ireland
Search Deals

Find flight deals from Illinois to Northern Ireland

Cheapest flights from Illinois to Northern Ireland
Explore the most affordable flight options available from Illinois to Northern Ireland. 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 25/819:25ORD - BFS
2 stops15h 55mMultiple Airlines
Mon 1/906:40BFS - ORD
2 stops17h 35mMultiple Airlines
Deal found 11/7£517
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
Thu 4/914:30STL - BFS
3 stops20h 10mMultiple Airlines
Fri 12/906:05BFS - STL
2 stops19h 52mMultiple Airlines
Deal found 9/7£705
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

Cheapflights Fare Finder

Customise your flight search to find flights from Illinois to Northern Ireland 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 Northern Ireland that are best for you.

Fly from

Illinois

Fly to

Northern Ireland

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 - BFS

ORDBFS

Chicago O'Hare Intl

Mon 25/8

19:25-17:20

2 stops15h 55m

Belfast Intl

Mon 1/9

06:40-18:15

2 stops17h 35m

£517

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

St. LouisBelfast

STL - BFS

STLBFS

Lambert-St Louis

Thu 4/9

14:30-16:40

3 stops20h 10m

Belfast Intl

Fri 12/9

06:05-19:57

2 stops19h 52m

£705

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

Flights are sorted by cheapest return flights first.

Deals found on 10/7

Showing 1-10 of 19 results
1
2

Best time to book a flight from Illinois to Northern Ireland

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

Reviews of airlines servicing Northern Ireland

Get insights into the airlines that provide service to Northern Ireland. 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 Northern Ireland. Reviews last updated 11 July 2025.
See what other customers who have flown with Delta, KLM, andAmerican Airlines from Illinois to Northern Ireland have to say. Users can see the overall rating for each airline as well as how each is rated in terms of 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 Northern Ireland. 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 Northern Ireland 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.

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

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

  • How can I find direct flights from Illinois to Northern Ireland?

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

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

    Yes. Cheapflights offers flight deals from Illinois to Northern Ireland 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 Northern Ireland?

    Currently, January is the cheapest month in which you can book a flight from Illinois to Northern Ireland (average of £67). Flying from Illinois to Northern Ireland in July is currently the most expensive (average of £90). 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

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 Northern Ireland

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Heathrow flights
Newark to Heathrow flights
John F Kennedy Intl to Gatwick flights
Newark to Gatwick flights
John F Kennedy Intl to London City flights
LaGuardia to Heathrow flights
Newark to London City flights
John F Kennedy Intl to Stansted flights
Los Angeles to Heathrow flights
Boston to Heathrow flights
LaGuardia to Gatwick flights
Dulles Intl to Heathrow flights
O'Hare Intl to Heathrow flights
Seattle to Heathrow flights
San Francisco to Heathrow flights
Dallas/Fort Worth to Heathrow flights
Baltimore to Heathrow flights
Boston to Gatwick flights
Newark to Stansted flights
Newark to Luton flights
Atlanta to Heathrow flights
Denver to Heathrow flights
Miami to Heathrow flights
Hobby to Heathrow flights
Philadelphia to Heathrow flights
Orlando to Heathrow flights
Dulles Intl to Gatwick flights
Los Angeles to London City flights
Boston to London City flights
Dulles Intl to London City flights
John F Kennedy Intl to Edinburgh flights
Reagan-National to Heathrow flights
O'Hare Intl to Gatwick flights
Baltimore to Gatwick flights
Los Angeles to Gatwick flights
George Bush Intcntl to Heathrow flights
O'Hare Intl to London City flights
Seattle to Gatwick flights
San Francisco to Gatwick flights
Reagan-National to Gatwick flights
Sky Harbor Intl to Heathrow flights
Newark to Edinburgh flights
Detroit to Heathrow flights
Dallas/Fort Worth to Gatwick flights
San Francisco to London City flights
Ontario to Heathrow flights
Minneapolis to Heathrow flights
Orlando to Gatwick flights
Seattle to London City 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 Northern Ireland?

Cheapflights helps you search for flights from Illinois to Northern Ireland 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 Northern Ireland?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Northern Ireland from Illinois.

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

Yes, we can. To see specific flights from Illinois to Northern Ireland with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Illinois to Northern Ireland become cheaper?

Of course! You can now track prices for flights from Illinois to Northern Ireland and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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