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?

Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore” . Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.

How does momondo find its flight prices?

We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

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

Prices for flights from Northern Ireland to Illinois refresh daily.

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

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 Northern Ireland to Illinois.

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

The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$419 Cheap Flights from Northern Ireland to Illinois in 2026

Find the cheapest flights from Northern Ireland to Illinois

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

6:10 am - 9:25 pmBFS Belfast Intl-ORD Chicago O'Hare Intl

21h 15m2 stops London Gatwick Reykjavik Keflavik Intl

7:25 pm - 8:30 pmORD Chicago O'Hare Intl-BFS Belfast Intl

19h 05m2 stops Reykjavik Keflavik Intl London Gatwick

$840Multiple Airlines

Wed, Oct 7 - Wed, Oct 14

6:15 am - 9:25 pmBFS Belfast Intl-ORD Chicago O'Hare Intl

21h 10m2 stops Paris Charles de Gaulle Reykjavik Keflavik Intl

7:25 pm - 8:15 pmORD Chicago O'Hare Intl-BFS Belfast Intl

18h 50m2 stops Reykjavik Keflavik Intl London Gatwick

$843Multiple Airlines

Wed, Oct 14 - Sun, Oct 18

8:15 am - 8:41 pmBFS Belfast Intl-ORD Chicago O'Hare Intl

18h 26m3 stops London Gatwick Montreal Pierre Elliott Trudeau Intl Toronto Island

7:25 pm - 10:20 pmORD Chicago O'Hare Intl-BFS Belfast Intl

20h 55m2 stops Reykjavik Keflavik Intl Manchester

$862Multiple Airlines

Wed, Oct 7 - Wed, Oct 14

6:15 am - 7:15 pmBFS Belfast Intl-ORD Chicago O'Hare Intl

19h 00m2 stops Paris Charles de Gaulle Dublin

7:25 pm - 10:30 pmORD Chicago O'Hare Intl-BFS Belfast Intl

21h 05m3 stops Reykjavik Keflavik Intl Kastrup Copenhagen Bristol

$898Multiple Airlines

Wed, Oct 14 - Sun, Oct 18

9:25 pm - 2:00 pmBFS Belfast Intl-ORD Chicago O'Hare Intl

22h 35m2 stops Manchester Dublin

4:45 pm - 11:00 amORD Chicago O'Hare Intl-BFS Belfast Intl

12h 15m2 stops Dublin Manchester

$899Multiple Airlines

Tue, Oct 20 - Sat, Oct 24

6:15 am - 3:10 pmBFS Belfast Intl-ORD Chicago O'Hare Intl

14h 55m1 stop Paris Charles de Gaulle

4:50 pm - 1:45 pmORD Chicago O'Hare Intl-BFS Belfast Intl

14h 55m2 stops Amsterdam Schiphol Paris Charles de Gaulle

$905Multiple Airlines

Wed, Oct 7 - Wed, Oct 14

8:15 am - 8:41 pmBFS Belfast Intl-ORD Chicago O'Hare Intl

18h 26m3 stops London Gatwick Montreal Pierre Elliott Trudeau Intl Toronto Island

2:15 pm - 3:20 pmORD Chicago O'Hare Intl-BFS Belfast Intl

19h 05m3 stops Toronto Pearson Intl Madrid Barajas Manchester

$911Multiple Airlines

Wed, Oct 7 - Wed, Oct 14

6:15 am - 3:10 pmBFS Belfast Intl-ORD Chicago O'Hare Intl

14h 55m1 stop Paris Charles de Gaulle

5:10 pm - 1:45 pmORD Chicago O'Hare Intl-BFS Belfast Intl

14h 35m1 stop Paris Charles de Gaulle

$919Multiple Airlines

Wed, Oct 7 - Wed, Oct 14

9:35 pm - 2:55 pmBFS Belfast Intl-ORD Chicago O'Hare Intl

23h 20m2 stops Glasgow Intl Toronto Pearson Intl

2:15 pm - 4:15 pmORD Chicago O'Hare Intl-BFS Belfast Intl

20h 00m3 stops Toronto Pearson Intl Madrid Barajas London Stansted

$927Multiple Airlines

Mon, Oct 5 - Mon, Oct 12

6:40 am - 9:40 amBFS Belfast Intl-ORD Chicago O'Hare Intl

33h 00m2 stops London Stansted Istanbul

11:25 am - 11:20 pmORD Chicago O'Hare Intl-BFS Belfast Intl

29h 55m2 stops Istanbul London Stansted

$964Multiple Airlines

Mon, Oct 5 - Mon, Oct 12

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British Airways flights from Northern Ireland to Illinois

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

British Airways

Nov 5

BHD7:40 amBelfast City

12h 05m

1 stop

ORD1:45 pmChicago O'Hare Intl

Nov 9

ORD6:35 pmChicago O'Hare Intl

15h 30m

1 stop

BHD4:05 pmBelfast City

$1,031

British Airways

Nov 5

BHD7:40 amBelfast City

12h 05m

1 stop

ORD1:45 pmChicago O'Hare Intl

Nov 9

ORD6:35 pmChicago O'Hare Intl

15h 30m

1 stop

BHD4:05 pmBelfast City

$1,032

British Airways

Nov 5

BHD6:30 amBelfast City

17h 07m

2 stops

ORD5:37 pmChicago O'Hare Intl

Nov 9

ORD4:45 pmChicago O'Hare Intl

15h 30m

2 stops

BHD2:15 pmBelfast City

$1,037

momondo Fare Finder

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

Cheapest round-trip

BelfastChicago

BFS Belfast Intl - ORD Chicago O'Hare Intl

BFSORD

Belfast Intl

Wed 10/7

6:10 am-9:25 pm

2 stops21h 15m

Chicago O'Hare Intl

Wed 10/14

7:25 pm-8:30 pm

2 stops19h 05m

$840

BelfastChicago

BFS Belfast Intl - ORD Chicago O'Hare Intl

BFSORD

Belfast Intl

Wed 10/14

6:15 am-9:25 pm

2 stops21h 10m

Chicago O'Hare Intl

Sun 10/18

7:25 pm-8:15 pm

2 stops18h 50m

$843

BelfastChicago

BFS Belfast Intl - ORD Chicago O'Hare Intl

BFSORD

Belfast Intl

Wed 10/7

8:15 am-8:41 pm

3 stops18h 26m

Chicago O'Hare Intl

Wed 10/14

7:25 pm-10:20 pm

2 stops20h 55m

$862

BelfastChicago

BFS Belfast Intl - ORD Chicago O'Hare Intl

BFSORD

Belfast Intl

Wed 10/14

6:15 am-7:15 pm

2 stops19h 00m

Chicago O'Hare Intl

Sun 10/18

7:25 pm-10:30 pm

3 stops21h 05m

$898

BelfastChicago

BFS Belfast Intl - ORD Chicago O'Hare Intl

BFSORD

Belfast Intl

Tue 10/20

9:25 pm-2:00 pm

2 stops22h 35m

Chicago O'Hare Intl

Sat 10/24

4:45 pm-11:00 am

2 stops12h 15m

$899

BelfastChicago

BFS Belfast Intl - ORD Chicago O'Hare Intl

BFSORD

Belfast Intl

Wed 10/7

6:15 am-3:10 pm

1 stop14h 55m

Chicago O'Hare Intl

Wed 10/14

4:50 pm-1:45 pm

2 stops14h 55m

$905

BelfastChicago

BFS Belfast Intl - ORD Chicago O'Hare Intl

BFSORD

Belfast Intl

Wed 10/7

8:15 am-8:41 pm

3 stops18h 26m

Chicago O'Hare Intl

Wed 10/14

2:15 pm-3:20 pm

3 stops19h 05m

$911

Quickest round-trip

BelfastChicago

BFS Belfast Intl - ORD Chicago O'Hare Intl

BFSORD

Belfast Intl

Wed 10/7

6:15 am-3:10 pm

1 stop14h 55m

Chicago O'Hare Intl

Wed 10/14

5:10 pm-1:45 pm

1 stop14h 35m

$919

BelfastChicago

BFS Belfast Intl - ORD Chicago O'Hare Intl

BFSORD

Belfast Intl

Mon 10/5

9:35 pm-2:55 pm

2 stops23h 20m

Chicago O'Hare Intl

Mon 10/12

2:15 pm-4:15 pm

3 stops20h 00m

$927

BelfastChicago

BFS Belfast Intl - ORD Chicago O'Hare Intl

BFSORD

Belfast Intl

Mon 10/5

6:40 am-9:40 am

2 stops33h 00m

Chicago O'Hare Intl

Mon 10/12

11:25 am-11:20 pm

2 stops29h 55m

$964

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 13 resultsSorted 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

Best Price Found	$419
Fastest flight time	15h 00m
Direct flights	None

The best one-way flight to Illinois from Northern Ireland in the past 72 hours is $419. The best round-trip flight deal from Northern Ireland to Illinois found on momondo in the last 72 hours is $840.

The fastest flight from Northern Ireland to Illinois takes 15h 00m

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

Search flight deals

Frequently asked questions about flying from Northern Ireland to Illinois

When did momondo last update prices for flights from Northern Ireland to Illinois?
Prices for flights from Northern Ireland to Illinois refresh daily.
How old do you have to be to fly from Northern Ireland to Illinois?
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 Northern Ireland to Illinois.
What documentation or ID do you need to fly to Illinois?
The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Frequently asked questions about flying from Northern Ireland to Illinois

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?
Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.
How does momondo find its flight prices?
We compare prices from 700+ competitors to help you find the price that works best for you. momondo operates in over 30 international markets, bringing you access to a wide range of fares and deals. Search for your travel using momondo for a diverse range of options from airlines and OTAs.

Why use momondo?

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

It is quick and easy to find Northern Ireland to Illinois 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 Illinois that suits you.

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

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

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

momondo helps you find the best flight between Northern Ireland and Illinois by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Price alerts on flights to Illinois from Northern Ireland 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.