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Cheap flights from Northern Ireland to Illinois from £319

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Northern Ireland to Illinois departing on 14/2. 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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Find the cheapest flights from Northern Ireland to Illinois

Cheap return flights

Enter your travel dates to find the best prices.
British Airways Logo
15:05 - 14:55
BHD
-
ORD
29h 50m
2 stops
British Airways Logo
17:10 - 10:40
ORD
-
BHD
11h 30m
1 stop
£527British Airways
jeu., 5 févr. - lun., 9 févr.
British Airways Logo
09:05 - 17:00
BHD
-
ORD
13h 55m
1 stop
British Airways Logo
17:10 - 14:15
ORD
-
BHD
15h 05m
1 stop
£533British Airways
jeu., 5 févr. - lun., 9 févr.
British Airways Logo
06:45 - 13:50
BHD
-
ORD
13h 05m
1 stop
British Airways Logo
18:25 - 14:15
ORD
-
BHD
13h 50m
1 stop
£707British Airways
ven., 6 févr. - lun., 9 févr.

British Airways flights from Northern Ireland to Illinois

Our best British Airways deals on Northern Ireland to Illinois flight tickets
British Airways
5 Feb
BHD15:05Belfast City
29h 50m
2 stops
ORD14:55Chicago O'Hare Intl
9 Feb
ORD17:10Chicago O'Hare Intl
11h 30m
1 stop
BHD10:40Belfast City
£527
British Airways
5 Feb
BHD09:05Belfast City
13h 55m
1 stop
ORD17:00Chicago O'Hare Intl
9 Feb
ORD17:10Chicago O'Hare Intl
15h 05m
1 stop
BHD14:15Belfast City
£533
British Airways
6 Feb
BHD06:45Belfast City
13h 05m
1 stop
ORD13:50Chicago O'Hare Intl
9 Feb
ORD18:25Chicago O'Hare Intl
13h 50m
1 stop
BHD14:15Belfast City
£707

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 27 janvier 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

jeu. 5/2

15:05-14:55

2 stops29h 50m

Chicago O'Hare Intl

lun. 9/2

17:10-10:40

1 stop11h 30m

£527

BelfastChicago

BHD - ORD

BHDORD

Belfast City

jeu. 5/2

09:05-17:00

1 stop13h 55m

Chicago O'Hare Intl

lun. 9/2

17:10-14:15

1 stop15h 05m

£533

BelfastChicago

BHD - ORD

BHDORD

Belfast City

ven. 6/2

06:45-13:50

1 stop13h 05m

Chicago O'Hare Intl

lun. 9/2

18:25-14:15

1 stop13h 50m

£707

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

sam. 14/2

08:30-14:45

3 stops36h 15m

£319

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

sam. 14/2

23:10-19:15

2 stops26h 05m

£464

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

24h 55m

Direct flights

None
The fastest flight from Northern Ireland to Illinois takes 24h 55m
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 £491Free CancellationRating
6.7
7,702 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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1 adult
jeu. 26/2
jeu. 5/3
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