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Cheap flights from Northern Ireland to Illinois from £569

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 8/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
06:30 - 17:20BFS-ORD
16h 50m2 stops
Multiple Airlines Logo
18:30 - 17:55ORD-BFS
17h 25m2 stops
£569Multiple Airlines
Find Deal
lun., 8 déc. - lun., 15 déc.
Multiple Airlines Logo
22:20 - 15:00BFS-ORD
46h 40m3 stops
Multiple Airlines Logo
14:20 - 21:40ORD-BFS
25h 20m2 stops
£587Multiple Airlines
Find Deal
lun., 1 déc. - lun., 8 déc.
Multiple Airlines Logo
07:20 - 17:20BHD-ORD
16h 00m2 stops
Multiple Airlines Logo
18:30 - 20:30ORD-BHD
20h 00m2 stops
£594Multiple Airlines
Find Deal
lun., 8 déc. - lun., 15 déc.
Delta Logo
06:30 - 14:20BHD-ORD
13h 50m1 stop
Delta Logo
16:25 - 16:50ORD-BHD
18h 25m1 stop
£595Delta
Find Deal
lun., 1 déc. - lun., 8 déc.
American Airlines Logo
06:35 - 15:25BHD-ORD
14h 50m1 stop
American Airlines Logo
18:35 - 16:05ORD-BHD
15h 30m2 stops
£610American Airlines
Find Deal
lun., 8 déc. - lun., 15 déc.
American Airlines Logo
14:40 - 17:44BHD-ORD
33h 04m2 stops
American Airlines Logo
14:42 - 14:15ORD-BHD
17h 33m2 stops
£614American Airlines
Find Deal
lun., 1 déc. - lun., 8 déc.
American Airlines Logo
10:40 - 17:00BHD-ORD
12h 20m1 stop
American Airlines Logo
19:45 - 14:15ORD-BHD
13h 30m1 stop
£627American Airlines
Find Deal
jeu., 5 mars - lun., 9 mars
American Airlines Logo
11:05 - 18:45BHD-ORD
13h 40m1 stop
American Airlines Logo
17:31 - 14:15ORD-BHD
15h 44m2 stops
£628American Airlines
Find Deal
jeu., 5 mars - lun., 9 mars
American Airlines Logo
06:35 - 17:53BHD-ORD
17h 18m2 stops
American Airlines Logo
17:31 - 14:15ORD-BHD
15h 44m2 stops
£631American Airlines
Find Deal
jeu., 5 mars - lun., 9 mars
Multiple Airlines Logo
07:20 - 11:08BHD-ORD
33h 48m3 stops
Multiple Airlines Logo
12:09 - 13:35ORD-BHD
19h 26m2 stops
£644Multiple Airlines
Find Deal
lun., 8 déc. - lun., 15 déc.

American Airlines flights from Northern Ireland to Illinois

Our best American Airlines deals on Northern Ireland to Illinois flight tickets
American Airlines
8 Dec
BHD06:35Belfast City
14h 50m
1 stop
ORD15:25Chicago O'Hare Intl
15 Dec
ORD18:35Chicago O'Hare Intl
15h 30m
2 stops
BHD16:05Belfast City
£610
Find similar
American Airlines
1 Dec
BHD14:40Belfast City
33h 04m
2 stops
ORD17:44Chicago O'Hare Intl
8 Dec
ORD14:42Chicago O'Hare Intl
17h 33m
2 stops
BHD14:15Belfast City
£614
Find similar
American Airlines
5 Mar
BHD10:40Belfast City
12h 20m
1 stop
ORD17:00Chicago O'Hare Intl
9 Mar
ORD19:45Chicago O'Hare Intl
13h 30m
1 stop
BHD14:15Belfast City
£627
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 30 octobre 2025.
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

BFS - ORD

BFSORD

Belfast Intl

lun. 8/12

06:30-17:20

2 stops16h 50m

Chicago O'Hare Intl

lun. 15/12

18:30-17:55

2 stops17h 25m

£569

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

lun. 1/12

22:20-15:00

3 stops46h 40m

Chicago O'Hare Intl

lun. 8/12

14:20-21:40

2 stops25h 20m

£587

BelfastChicago

BHD - ORD

BHDORD

Belfast City

lun. 8/12

07:20-17:20

2 stops16h 00m

Chicago O'Hare Intl

lun. 15/12

18:30-20:30

2 stops20h 00m

£594

BelfastChicago

BHD - ORD

BHDORD

Belfast City

lun. 1/12

06:30-14:20

1 stop13h 50m

Chicago O'Hare Intl

lun. 8/12

16:25-16:50

1 stop18h 25m

£595

BelfastChicago

BHD - ORD

BHDORD

Belfast City

lun. 8/12

06:35-15:25

1 stop14h 50m

Chicago O'Hare Intl

lun. 15/12

18:35-16:05

2 stops15h 30m

£610

BelfastChicago

BHD - ORD

BHDORD

Belfast City

lun. 1/12

14:40-17:44

2 stops33h 04m

Chicago O'Hare Intl

lun. 8/12

14:42-14:15

2 stops17h 33m

£614

BelfastChicago

BHD - ORD

BHDORD

Belfast City

jeu. 5/3

10:40-17:00

1 stop12h 20m

Chicago O'Hare Intl

lun. 9/3

19:45-14:15

1 stop13h 30m

£627

BelfastChicago

BHD - ORD

BHDORD

Belfast City

jeu. 5/3

11:05-18:45

1 stop13h 40m

Chicago O'Hare Intl

lun. 9/3

17:31-14:15

2 stops15h 44m

£628

BelfastChicago

BHD - ORD

BHDORD

Belfast City

jeu. 5/3

06:35-17:53

2 stops17h 18m

Chicago O'Hare Intl

lun. 9/3

17:31-14:15

2 stops15h 44m

£631

BelfastChicago

BHD - ORD

BHDORD

Belfast City

lun. 8/12

07:20-11:08

3 stops33h 48m

Chicago O'Hare Intl

lun. 15/12

12:09-13:35

2 stops19h 26m

£644

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

See travel insights to Illinois from

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

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 day to depart on your flight to Illinois?

The cheapest day to depart on your flight to Illinois is on a Friday when prices can be found for as low as £599. This is often the case because there is less demand to fly during this day of the week. Flights from Northern Ireland to Illinois on a Saturday will generally be more expensive and average around £835. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

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

Direct flights

None
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
7,485 reviews
Search British Airways flights

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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