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Cheap flights from Northern Ireland to Illinois from £499

This is the cheapest return flight price found by a momondo user in the last 72 hours by searching for a flight from Northern Ireland to Illinois departing on 29/1. 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

Enter your travel dates to find the best prices.
British Airways Logo
06:35 - 13:50
BHD
-
ORD
13h 15m1 stop
British Airways Logo
17:10 - 10:40
ORD
-
BHD
11h 30m1 stop
£499British Airways
Thu, 29 Jan - Mon, 2 Feb
British Airways Logo
06:35 - 13:50
BHD
-
ORD
13h 15m1 stop
British Airways Logo
16:14 - 16:05
ORD
-
BHD
17h 51m2 stops
£499British Airways
Thu, 29 Jan - Mon, 2 Feb
British Airways Logo
09:05 - 18:45
BHD
-
ORD
15h 40m1 stop
British Airways Logo
17:10 - 14:15
ORD
-
BHD
15h 05m1 stop
£500British Airways
Thu, 29 Jan - Mon, 2 Feb
British Airways Logo
09:05 - 20:20
BHD
-
ORD
17h 15m2 stops
British Airways Logo
11:44 - 10:40
ORD
-
BHD
16h 56m2 stops
£503British Airways
Thu, 29 Jan - Mon, 2 Feb
British Airways Logo
06:35 - 17:42
BHD
-
ORD
17h 07m2 stops
British Airways Logo
16:30 - 14:15
ORD
-
BHD
15h 45m2 stops
£504British Airways
Thu, 29 Jan - Mon, 2 Feb
American Airlines Logo
09:15 - 17:00
BHD
-
ORD
13h 45m1 stop
American Airlines Logo
18:25 - 14:15
ORD
-
BHD
13h 50m1 stop
£514American Airlines
Sat, 17 Jan - Wed, 21 Jan
American Airlines Logo
06:35 - 18:01
BHD
-
ORD
17h 26m2 stops
American Airlines Logo
13:34 - 10:15
ORD
-
BHD
14h 41m2 stops
£518American Airlines
Sat, 17 Jan - Wed, 21 Jan
Multiple Airlines Logo
06:00 - 16:45
BFS
-
ORD
16h 45m2 stops
Multiple Airlines Logo
19:20 - 22:40
ORD
-
BFS
21h 20m2 stops
£531Multiple Airlines
Sat, 14 Feb - Sat, 21 Feb
Multiple Airlines Logo
12:45 - 16:55
BFS
-
ORD
34h 10m3 stops
Multiple Airlines Logo
19:20 - 22:40
ORD
-
BFS
21h 20m2 stops
£537Multiple Airlines
Sat, 14 Feb - Sat, 21 Feb
British Airways Logo
12:25 - 18:45
BHD
-
ORD
12h 20m1 stop
British Airways Logo
17:10 - 10:15
ORD
-
BHD
11h 05m1 stop
£557British Airways
Wed, 28 Jan - Wed, 4 Feb

British Airways flights from Northern Ireland to Illinois

Our best British Airways deals on Northern Ireland to Illinois flight tickets
British Airways
29 Jan
BHD09:05Belfast City
15h 40m
1 stop
ORD18:45Chicago O'Hare Intl
2 Feb
ORD16:14Chicago O'Hare Intl
16h 01m
2 stops
BHD14:15Belfast City
£499
Find similar
British Airways
29 Jan
BHD10:40Belfast City
14h 05m
1 stop
ORD18:45Chicago O'Hare Intl
2 Feb
ORD17:10Chicago O'Hare Intl
15h 05m
1 stop
BHD14:15Belfast City
£499
Find similar
British Airways
29 Jan
BHD09:05Belfast City
15h 40m
1 stop
ORD18:45Chicago O'Hare Intl
2 Feb
ORD11:44Chicago O'Hare Intl
16h 56m
2 stops
BHD10:40Belfast City
£500
Find similar

American Airlines flights from Northern Ireland to Illinois

Our best American Airlines deals on Northern Ireland to Illinois flight tickets
American Airlines
17 Jan
BHD09:15Belfast City
13h 45m
1 stop
ORD17:00Chicago O'Hare Intl
21 Jan
ORD18:25Chicago O'Hare Intl
13h 50m
1 stop
BHD14:15Belfast City
£514
Find similar
American Airlines
17 Jan
BHD06:35Belfast City
17h 26m
2 stops
ORD18:01Chicago O'Hare Intl
21 Jan
ORD13:34Chicago O'Hare Intl
14h 41m
2 stops
BHD10:15Belfast City
£518
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Northern Ireland 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, momondo users made 279,928 searches. Data last updated 2 January 2026.
Use the filters below to find and compare flights from Northern Ireland to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 29/1

06:35-13:50

1 stop13h 15m

Chicago O'Hare Intl

Mon 2/2

17:10-10:40

1 stop11h 30m

£499

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 29/1

06:35-13:50

1 stop13h 15m

Chicago O'Hare Intl

Mon 2/2

16:14-16:05

2 stops17h 51m

£499

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 29/1

09:05-18:45

1 stop15h 40m

Chicago O'Hare Intl

Mon 2/2

17:10-14:15

1 stop15h 05m

£500

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 29/1

09:05-20:20

2 stops17h 15m

Chicago O'Hare Intl

Mon 2/2

11:44-10:40

2 stops16h 56m

£503

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 29/1

06:35-17:42

2 stops17h 07m

Chicago O'Hare Intl

Mon 2/2

16:30-14:15

2 stops15h 45m

£504

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Sat 17/1

09:15-17:00

1 stop13h 45m

Chicago O'Hare Intl

Wed 21/1

18:25-14:15

1 stop13h 50m

£514

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Sat 17/1

06:35-18:01

2 stops17h 26m

Chicago O'Hare Intl

Wed 21/1

13:34-10:15

2 stops14h 41m

£518

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sat 14/2

06:00-16:45

2 stops16h 45m

Chicago O'Hare Intl

Sat 21/2

19:20-22:40

2 stops21h 20m

£531

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Sat 14/2

12:45-16:55

3 stops34h 10m

Chicago O'Hare Intl

Sat 21/2

19:20-22:40

2 stops21h 20m

£537

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Wed 28/1

12:25-18:45

1 stop12h 20m

Chicago O'Hare Intl

Wed 4/2

17:10-10:15

1 stop11h 05m

£557

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

Cheap Northern Ireland to Illinois flight deals and tips

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

Fastest flight time

15h 40m

Direct flights

None
The fastest flight from Northern Ireland to Illinois takes 15h 40m
There are no direct flights from Northern Ireland to Illinois. There are no popular flight routes from Northern Ireland to Illinois.
Search flight deals

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

    Prices for flights from Northern Ireland to Illinois are refreshed on a daily basis.

  • How many operators does momondo search for flights from Northern Ireland to Illinois?

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Northern Ireland to Illinois.

  • What documentation or ID do you need to fly to Illinois?

    The travel and health documents required for your trip to Illinois 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 Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Northern Ireland to Illinois

Compare and see reviews for airlines that fly from Northern Ireland to Illinois with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom £482Free CancellationRating
6.7
7,635 reviews
Search British Airways flights

  • How do I get Price Alerts for flights from Northern Ireland to Illinois?

    You can take advantage of momondo’s Price Alerts by first searching for your flights to Northern Ireland from Illinois. Flight offers will be shown to you in real-time. From there you can create a Price Alert by using our on-site widget.

  • How can I save money on flights from Northern Ireland to Illinois with momondo?

    Leverage our AI within our “Price Forecast” tool, which predicts if it’s better to book now or wait until prices decrease. You can strategically pick the best days to fly and save money on your trip by using our “Price Calendar” tool. “Explore” shows an overview of how much it costs to fly to anywhere from a selected city or airport. Our “Discover” content is a great option for travel inspiration and money-saving tips, while “Price Alerts” will update you when prices change, so you can book when fares are right.

  • How does momondo find its flight prices?

    We show prices from over 700+ competitors with a single click. With options from airlines and OTAs from across our 30 international markets, we are able to show you a diverse range of deals to create your adventure.

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Illinois from Northern Ireland.

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

All flight searches from Northern Ireland to Illinois on momondo can be filtered to show those which offer flexible booking policies.

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

Once you have performed a search for Northern Ireland to Illinois flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are simply researching potential flights to Illinois, momondo offers a useful price alert feature which will track prices for flights to Illinois from Northern Ireland and alert you when they change.

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