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.

£238 Cheap Flights from Illinois to Northern Ireland in 2026

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Find the cheapest flights from Illinois to Northern Ireland

Round-trip

One-way

Cheap return flights

Enter your travel dates to find the best prices.

10:00 - 16:15

ORD

BFS

24h 15m

2 stops

18:50 - 18:15

BFS

ORD

29h 25m

3 stops

£618Multiple Airlines

Mon, 1 Jun - Mon, 8 Jun

19:25 - 18:50

ORD

BFS

17h 25m

2 stops

05:55 - 18:15

BFS

ORD

18h 20m

2 stops

£626Multiple Airlines

Mon, 27 Apr - Wed, 6 May

22:35 - 15:40

ORD

BHD

11h 05m

1 stop

10:05 - 17:35

BHD

ORD

13h 30m

1 stop

£652American Airlines

Wed, 19 Aug - Wed, 26 Aug

18:10 - 13:35

ORD

BHD

13h 25m

1 stop

06:30 - 16:55

BHD

ORD

16h 25m

2 stops

£660American Airlines

Wed, 19 Aug - Wed, 26 Aug

17:30 - 15:40

ORD

BHD

16h 10m

2 stops

10:05 - 23:10

BHD

ORD

19h 05m

2 stops

£666British Airways

Wed, 19 Aug - Wed, 26 Aug

21:40 - 14:35

STL

BHD

10h 55m

1 stop

10:05 - 19:30

BHD

STL

15h 25m

1 stop

£671British Airways

Sun, 23 Aug - Wed, 26 Aug

09:54 - 09:20

MDW

BHD

17h 26m

2 stops

09:50 - 22:15

BHD

MDW

18h 25m

2 stops

£1,764Delta

Fri, 3 Jul - Fri, 10 Jul

19:06 - 16:55

MDW

BHD

15h 49m

2 stops

09:50 - 22:15

BHD

MDW

18h 25m

2 stops

£2,370KLM

Tue, 14 Jul - Sun, 19 Jul

18:58 - 16:55

MDW

BHD

15h 57m

2 stops

09:50 - 22:15

BHD

MDW

18h 25m

2 stops

£2,528KLM

Sun, 12 Jul - Sun, 19 Jul

12:45 - 16:55

MDW

BHD

22h 10m

2 stops

09:50 - 22:17

BHD

MDW

18h 27m

2 stops

£3,061Delta

Fri, 26 Jun - Sat, 4 Jul

American Airlines flights from Illinois to Northern Ireland

Our best American Airlines deals on Illinois to Northern Ireland flight tickets

American Airlines

19 Aug

ORD22:35Chicago O'Hare Intl

11h 05m

1 stop

BHD15:40Belfast City

26 Aug

BHD10:05Belfast City

13h 30m

1 stop

ORD17:35Chicago O'Hare Intl

£652

American Airlines

19 Aug

ORD18:10Chicago O'Hare Intl

13h 25m

1 stop

BHD13:35Belfast City

26 Aug

BHD06:30Belfast City

16h 25m

2 stops

ORD16:55Chicago O'Hare Intl

£660

American Airlines

13 Sept

ORD21:15Chicago O'Hare Intl

14h 25m

1 stop

BHD17:40Belfast City

20 Sept

BHD06:30Belfast City

17h 05m

1 stop

ORD17:35Chicago O'Hare Intl

£692

British Airways flights from Illinois to Northern Ireland

Our best British Airways deals on Illinois to Northern Ireland flight tickets

British Airways

19 Aug

ORD17:30Chicago O'Hare Intl

16h 10m

2 stops

BHD15:40Belfast City

26 Aug

BHD10:05Belfast City

19h 05m

2 stops

ORD23:10Chicago O'Hare Intl

£666

British Airways

23 Aug

STL21:40Lambert-St Louis

10h 55m

1 stop

BHD14:35Belfast City

26 Aug

BHD10:05Belfast City

15h 25m

1 stop

STL19:30Lambert-St Louis

£671

British Airways

23 Aug

STL21:40Lambert-St Louis

15h 05m

1 stop

BHD18:45Belfast City

26 Aug

BHD11:35Belfast City

13h 55m

1 stop

STL19:30Lambert-St Louis

£672

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Mon 1/6

10:00-16:15

2 stops24h 15m

Belfast Intl

Mon 8/6

18:50-18:15

3 stops29h 25m

£618

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Mon 27/4

19:25-18:50

2 stops17h 25m

Belfast Intl

Wed 6/5

05:55-18:15

2 stops18h 20m

£626

Fastest return journey

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 19/8

22:35-15:40

1 stop11h 05m

Belfast City

Wed 26/8

10:05-17:35

1 stop13h 30m

£652

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 19/8

18:10-13:35

1 stop13h 25m

Belfast City

Wed 26/8

06:30-16:55

2 stops16h 25m

£660

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 19/8

17:30-15:40

2 stops16h 10m

Belfast City

Wed 26/8

10:05-23:10

2 stops19h 05m

£666

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Sun 23/8

21:40-14:35

1 stop10h 55m

Belfast City

Wed 26/8

10:05-19:30

1 stop15h 25m

£671

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Fri 3/7

09:54-09:20

2 stops17h 26m

Belfast City

Fri 10/7

09:50-22:15

2 stops18h 25m

£1,764

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Tue 14/7

19:06-16:55

2 stops15h 49m

Belfast City

Sun 19/7

09:50-22:15

2 stops18h 25m

£2,370

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Sun 12/7

18:58-16:55

2 stops15h 57m

Belfast City

Sun 19/7

09:50-22:15

2 stops18h 25m

£2,528

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Fri 26/6

12:45-16:55

2 stops22h 10m

Belfast City

Sat 4/7

09:50-22:17

2 stops18h 27m

£3,061

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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?

British Airways, Delta, and KLM are the most popular carriers 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

Fastest flight time	11h 10m
Direct flights	None

The fastest flight from Illinois to Northern Ireland takes 11h 10m

There are no direct flights from Illinois to Northern Ireland. There are no popular flight routes from Illinois to Northern Ireland.

Search flight deals

Frequently asked questions about flying from Illinois to Northern Ireland

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.