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Cheap flights from Illinois to Northern Ireland from £184

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Northern Ireland departing on 20/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Cheap return flights

Multiple Airlines Logo
18:30 - 22:20ORD-BFS
21h 50m2 stops
Multiple Airlines Logo
06:30 - 17:20BFS-ORD
16h 50m2 stops
£504Multiple Airlines
Find Deal
Wed, 5 Nov - Wed, 12 Nov
Multiple Airlines Logo
18:30 - 22:20ORD-BFS
21h 50m2 stops
Multiple Airlines Logo
06:30 - 17:20BFS-ORD
16h 50m2 stops
£509Multiple Airlines
Find Deal
Thu, 6 Nov - Thu, 13 Nov
Virgin Atlantic Logo
16:25 - 21:00ORD-BHD
22h 35m1 stop
Virgin Atlantic Logo
06:30 - 14:20BHD-ORD
13h 50m1 stop
£526Virgin Atlantic
Find Deal
Wed, 3 Dec - Sun, 7 Dec
Virgin Atlantic Logo
16:15 - 21:15ORD-BHD
23h 00m1 stop
Virgin Atlantic Logo
06:30 - 14:10BHD-ORD
13h 40m1 stop
£527Virgin Atlantic
Find Deal
Fri, 3 Oct - Tue, 7 Oct
Delta Logo
15:30 - 21:00STL-BHD
23h 30m2 stops
Delta Logo
06:30 - 16:50BHD-STL
16h 20m2 stops
£551Delta
Find Deal
Sun, 1 Mar - Thu, 5 Mar
British Airways Logo
22:45 - 07:30ORD-BHD
27h 45m1 stop
British Airways Logo
19:25 - 13:50BHD-ORD
24h 25m1 stop
£557British Airways
Find Deal
Wed, 29 Oct - Mon, 3 Nov
Delta Logo
10:30 - 16:50ORD-BHD
25h 20m2 stops
Delta Logo
06:30 - 14:20BHD-ORD
13h 50m1 stop
£560Delta
Find Deal
Thu, 30 Oct - Sun, 9 Nov
British Airways Logo
18:10 - 10:30ORD-BHD
11h 20m1 stop
British Airways Logo
14:40 - 15:25BHD-ORD
30h 45m1 stop
£562British Airways
Find Deal
Fri, 31 Oct - Mon, 10 Nov
KLM Logo
16:15 - 21:15ORD-BHD
23h 00m1 stop
KLM Logo
06:30 - 14:10BHD-ORD
13h 40m1 stop
£565KLM
Find Deal
Fri, 3 Oct - Tue, 7 Oct
KLM Logo
16:15 - 21:15ORD-BHD
23h 00m1 stop
KLM Logo
06:30 - 16:11BHD-ORD
15h 41m2 stops
£572KLM
Find Deal
Fri, 3 Oct - Tue, 7 Oct

Delta flights from Illinois to Northern Ireland

Our best Delta deals on Illinois to Northern Ireland flight tickets
Delta
1 Mar
STL15:30Lambert-St Louis
23h 30m
2 stops
BHD21:00Belfast City
5 Mar
BHD06:30Belfast City
16h 20m
2 stops
STL16:50Lambert-St Louis
£551
Find similar
Delta
30 Oct
ORD10:30Chicago O'Hare Intl
25h 20m
2 stops
BHD16:50Belfast City
9 Nov
BHD06:30Belfast City
13h 50m
1 stop
ORD14:20Chicago O'Hare Intl
£560
Find similar
Delta
30 Oct
ORD10:30Chicago O'Hare Intl
25h 20m
2 stops
BHD16:50Belfast City
9 Nov
BHD06:30Belfast City
19h 59m
2 stops
ORD20:29Chicago O'Hare Intl
£568
Find similar

British Airways flights from Illinois to Northern Ireland

Our best British Airways deals on Illinois to Northern Ireland flight tickets
British Airways
29 Oct
ORD22:45Chicago O'Hare Intl
27h 45m
1 stop
BHD07:30Belfast City
3 Nov
BHD19:25Belfast City
24h 25m
1 stop
ORD13:50Chicago O'Hare Intl
£557
Find similar
British Airways
31 Oct
ORD18:10Chicago O'Hare Intl
11h 20m
1 stop
BHD10:30Belfast City
10 Nov
BHD14:40Belfast City
30h 45m
1 stop
ORD15:25Chicago O'Hare Intl
£562
Find similar
British Airways
29 Oct
ORD18:10Chicago O'Hare Intl
17h 05m
1 stop
BHD16:15Belfast City
3 Nov
BHD14:50Belfast City
29h 40m
2 stops
ORD14:30Chicago O'Hare Intl
£573
Find similar

momondo 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, momondo users made 279,928 searches. Data last updated 23 September 2025.
Use the filters below to find and compare flights from Illinois to Northern Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Wed 5/11

18:30-22:20

2 stops21h 50m

Belfast Intl

Wed 12/11

06:30-17:20

2 stops16h 50m

£504

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Thu 6/11

18:30-22:20

2 stops21h 50m

Belfast Intl

Thu 13/11

06:30-17:20

2 stops16h 50m

£509

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 3/12

16:25-21:00

1 stop22h 35m

Belfast City

Sun 7/12

06:30-14:20

1 stop13h 50m

£526

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

£527

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Sun 1/3

15:30-21:00

2 stops23h 30m

Belfast City

Thu 5/3

06:30-16:50

2 stops16h 20m

£551

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 29/10

22:45-07:30

1 stop27h 45m

Belfast City

Mon 3/11

19:25-13:50

1 stop24h 25m

£557

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Thu 30/10

10:30-16:50

2 stops25h 20m

Belfast City

Sun 9/11

06:30-14:20

1 stop13h 50m

£560

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Fri 31/10

18:10-10:30

1 stop11h 20m

Belfast City

Mon 10/11

14:40-15:25

1 stop30h 45m

£562

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

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Fri 3/10

16:15-21:15

1 stop23h 00m

Belfast City

Tue 7/10

06:30-16:11

2 stops15h 41m

£572

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Northern Ireland from

How to get the cheapest flight ticket from Illinois to Northern Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Illinois to Northern Ireland?

American Airlines is the most popular carrier operating from Illinois to Northern Ireland

Cheap Illinois to Northern Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Northern Ireland

Direct flights

None
There are no direct flights from Illinois to Northern Ireland. There are no popular flight routes from Illinois to Northern Ireland.
Search flight deals

  • When did momondo last update prices for flights from Illinois to Northern Ireland?

    Prices for flights from Illinois to Northern Ireland were last updated today.

  • How old do you have to be to fly from Illinois to Northern Ireland?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Northern Ireland.

  • What documentation or ID do you need to fly to Northern Ireland?

    The travel and health documents required for your trip to Northern Ireland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Northern Ireland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

Why should I use momondo to find a flight deal from Illinois to Northern Ireland?

It is quick and easy to find Illinois to Northern Ireland flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Northern Ireland that suits you.

Can I find flights from Illinois to Northern Ireland with flexible booking policies on momondo?

momondo does allow users to show only those flights to Northern Ireland from Illinois which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Illinois to Northern Ireland?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Illinois to Northern Ireland.

I’m not ready to book a flight from Illinois to Northern Ireland right now. Can momondo alert me if prices change?

Price alerts on flights to Northern Ireland from Illinois are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Northern Ireland trip

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Find better results for your trip to Northern Ireland

Popular Cities in Northern Ireland

Popular flights according to clicks in the last 7 days on momondo
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Flights to Leedsfrom £60
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