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Cheap flights from Northern Ireland to Chicago from $389

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 Chicago departing on 10/6. 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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0 bags

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Find the cheapest flights from Northern Ireland to Chicago

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:55 am - 7:52 pm
BFS
-
ORD
19h 57m
2 stops
Multiple Airlines Logo
9:50 am - 7:15 pm
ORD
-
BFS
27h 25m
2 stops
$877Multiple Airlines
Wed, Jul 15 - Wed, Jul 22
Multiple Airlines Logo
6:40 am - 4:57 pm
BFS
-
ORD
16h 17m
2 stops
Multiple Airlines Logo
9:50 am - 9:35 pm
ORD
-
BFS
29h 45m
2 stops
$881Multiple Airlines
Mon, Jul 13 - Mon, Jul 20
Multiple Airlines Logo
5:55 am - 7:52 pm
BFS
-
ORD
19h 57m
2 stops
Multiple Airlines Logo
8:45 am - 7:15 pm
ORD
-
BFS
28h 30m
3 stops
$883Multiple Airlines
Wed, Jul 15 - Wed, Jul 22
Multiple Airlines Logo
6:30 am - 4:57 pm
BFS
-
ORD
16h 27m
2 stops
Multiple Airlines Logo
10:25 pm - 11:20 pm
ORD
-
BFS
18h 55m
2 stops
$918Multiple Airlines
Mon, Jul 13 - Mon, Jul 20
Multiple Airlines Logo
6:40 am - 9:25 pm
BFS
-
ORD
44h 45m
3 stops
Multiple Airlines Logo
11:05 am - 7:30 pm
ORD
-
BFS
26h 25m
3 stops
$948Multiple Airlines
Tue, Sep 15 - Thu, Sep 17
Multiple Airlines Logo
6:30 am - 4:57 pm
BFS
-
ORD
16h 27m
2 stops
Multiple Airlines Logo
5:35 pm - 4:25 pm
ORD
-
BFS
16h 50m
2 stops
$960Multiple Airlines
Mon, Jul 13 - Mon, Jul 20
British Airways Logo
11:05 am - 7:15 pm
BHD
-
ORD
14h 10m
1 stop
British Airways Logo
8:40 pm - 1:55 pm
ORD
-
BHD
11h 15m
1 stop
$1,043British Airways
Thu, Nov 5 - Sun, Nov 8
British Airways Logo
6:35 am - 5:55 pm
BHD
-
ORD
17h 20m
2 stops
British Airways Logo
2:03 pm - 10:20 am
ORD
-
BHD
14h 17m
2 stops
$1,048British Airways
Thu, Nov 5 - Sun, Nov 8
British Airways Logo
6:35 am - 5:38 pm
BHD
-
ORD
17h 03m
2 stops
British Airways Logo
4:34 pm - 1:55 pm
ORD
-
BHD
15h 21m
2 stops
$1,049British Airways
Thu, Nov 5 - Sun, Nov 8
American Airlines Logo
9:40 am - 5:35 pm
BHD
-
ORD
13h 55m
1 stop
American Airlines Logo
8:40 pm - 3:30 pm
ORD
-
BHD
12h 50m
1 stop
$1,053American Airlines
Mon, Jul 13 - Mon, Jul 20

American Airlines flights from Northern Ireland to Chicago O'Hare Intl Airport

Our best American Airlines deals on Northern Ireland to Chicago O'Hare Intl Airport flight tickets
American Airlines
Jul 13
BHD9:40 amBelfast City
13h 55m
1 stop
ORD5:35 pmChicago O'Hare Intl
Jul 20
ORD8:40 pmChicago O'Hare Intl
12h 50m
1 stop
BHD3:30 pmBelfast City
$1,053
American Airlines
Jun 28
BHD6:30 amBelfast City
32h 05m
2 stops
ORD8:35 amChicago O'Hare Intl
Jul 19
ORD8:16 amChicago O'Hare Intl
24h 19m
2 stops
BHD2:35 pmBelfast City
$1,491
American Airlines
Jun 14
BHD6:30 amBelfast City
11h 55m
1 stop
ORD12:25 pmChicago O'Hare Intl
Jun 18
ORD10:30 pmChicago O'Hare Intl
11h 00m
1 stop
BHD3:30 pmBelfast City
$11,543

KLM flights from Northern Ireland to Chicago O'Hare Intl Airport

Our best KLM deals on Northern Ireland to Chicago O'Hare Intl Airport flight tickets
KLM
Jun 28
BHD5:45 pmBelfast City
26h 45m
1 stop
ORD2:30 pmChicago O'Hare Intl
Jul 19
ORD7:17 pmChicago O'Hare Intl
32h 03m
2 stops
BHD9:20 amBelfast City
$1,109
KLM
Aug 7
BHD5:30 pmBelfast City
26h 45m
1 stop
ORD2:15 pmChicago O'Hare Intl
Aug 15
ORD4:20 pmChicago O'Hare Intl
11h 00m
1 stop
BHD9:20 amBelfast City
$5,483
KLM
Aug 7
BHD9:50 amBelfast City
18h 02m
2 stops
ORD9:52 pmChicago O'Hare Intl
Aug 15
ORD4:20 pmChicago O'Hare Intl
11h 00m
1 stop
BHD9:20 amBelfast City
$5,493

momondo Fare Finder

 
Customize your flight search to find flights from Northern Ireland to Chicago O'Hare Intl Airport 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 832,500 searches. Data last updated June 2, 2026.
Use the filters below to find and compare flights from Northern Ireland to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 7/15

5:55 am-7:52 pm

2 stops19h 57m

Chicago O'Hare Intl

Wed 7/22

9:50 am-7:15 pm

2 stops27h 25m

$877

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 7/13

6:40 am-4:57 pm

2 stops16h 17m

Chicago O'Hare Intl

Mon 7/20

9:50 am-9:35 pm

2 stops29h 45m

$881

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 7/15

5:55 am-7:52 pm

2 stops19h 57m

Chicago O'Hare Intl

Wed 7/22

8:45 am-7:15 pm

3 stops28h 30m

$883

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 7/13

6:30 am-4:57 pm

2 stops16h 27m

Chicago O'Hare Intl

Mon 7/20

10:25 pm-11:20 pm

2 stops18h 55m

$918

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Tue 9/15

6:40 am-9:25 pm

3 stops44h 45m

Chicago O'Hare Intl

Thu 9/17

11:05 am-7:30 pm

3 stops26h 25m

$948

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 7/13

6:30 am-4:57 pm

2 stops16h 27m

Chicago O'Hare Intl

Mon 7/20

5:35 pm-4:25 pm

2 stops16h 50m

$960
Quickest round-trip

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 11/5

11:05 am-7:15 pm

1 stop14h 10m

Chicago O'Hare Intl

Sun 11/8

8:40 pm-1:55 pm

1 stop11h 15m

$1,043

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 11/5

6:35 am-5:55 pm

2 stops17h 20m

Chicago O'Hare Intl

Sun 11/8

2:03 pm-10:20 am

2 stops14h 17m

$1,048

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 11/5

6:35 am-5:38 pm

2 stops17h 03m

Chicago O'Hare Intl

Sun 11/8

4:34 pm-1:55 pm

2 stops15h 21m

$1,049

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mon 7/13

9:40 am-5:35 pm

1 stop13h 55m

Chicago O'Hare Intl

Mon 7/20

8:40 pm-3:30 pm

1 stop12h 50m

$1,053

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Chicago from

How to get the cheapest flight ticket from Northern Ireland to Chicago O'Hare Intl Airport

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 Northern Ireland to Chicago O'Hare Intl?

British Airways is the most popular carrier operating from Northern Ireland to Chicago O'Hare Intl

Cheap Northern Ireland to Chicago O'Hare Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Northern Ireland to Chicago O'Hare Intl Airport

Fastest flight time

14h 00m

Direct flights

None
The fastest flight from Northern Ireland to Chicago O'Hare Intl Airport takes 14h 00m
There are no direct flights from Northern Ireland to Chicago O'Hare Intl Airport. There are no popular flight routes from Northern Ireland to Chicago O'Hare Intl Airport.
Search flight deals

Frequently asked questions about flying from Northern Ireland to Chicago O'Hare Intl Airport

  • When did momondo last update prices for flights from Northern Ireland to Chicago O'Hare Intl Airport?

    Prices for flights from Northern Ireland to Chicago O'Hare Intl Airport are updated daily.

  • How old do you have to be to fly from Northern Ireland to Chicago O'Hare Intl Airport?

    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 Chicago O'Hare Intl Airport.

  • What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

    The necessary travel and health documents for your Chicago O'Hare Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Lake Geneva
South Haven
Schaumburg
Rockford
Merrillville
Gurnee
Rosemont
Naperville
Orland Park
New Buffalo
Oak Brook
Kenosha
Joliet
Aurora
Racine
Janesville
Hammond
Evanston
Elgin
Tinley Park

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Northern Ireland to Chicago for you.

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

Yes. All flights to Chicago from Northern Ireland on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Chicago from Northern Ireland.

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

If you are not ready to book a flight from Northern Ireland to Chicago now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Chicago and let you know when they change.

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