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Cheap flights from Chicago to Northern Ireland from $255

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Northern Ireland departing on 1/14. 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 Chicago to Northern Ireland

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:30 pm - 10:00 pm
ORD
-
BFS
21h 30m2 stops
Multiple Airlines Logo
8:05 am - 5:20 pm
BFS
-
ORD
15h 15m2 stops
$605Multiple Airlines
vie., ene. 30 - vie., feb. 6
Multiple Airlines Logo
6:30 pm - 10:00 pm
ORD
-
BFS
21h 30m2 stops
Multiple Airlines Logo
11:45 am - 5:20 pm
BFS
-
ORD
35h 35m3 stops
$611Multiple Airlines
vie., ene. 30 - vie., feb. 6
Multiple Airlines Logo
6:30 pm - 6:55 pm
ORD
-
BFS
18h 25m2 stops
Multiple Airlines Logo
10:20 pm - 3:00 pm
BFS
-
ORD
46h 40m3 stops
$628Multiple Airlines
dom., ene. 18 - lun., feb. 2
Multiple Airlines Logo
6:30 pm - 8:50 pm
ORD
-
BFS
20h 20m2 stops
Multiple Airlines Logo
7:20 am - 5:20 pm
BFS
-
ORD
16h 00m2 stops
$630Multiple Airlines
mié., ene. 28 - mié., feb. 4
British Airways Logo
4:33 pm - 4:05 pm
ORD
-
BHD
17h 32m2 stops
British Airways Logo
2:40 pm - 1:50 pm
BHD
-
ORD
29h 10m1 stop
$640British Airways
lun., ene. 12 - lun., ene. 19
British Airways Logo
9:45 pm - 2:15 pm
ORD
-
BHD
10h 30m1 stop
British Airways Logo
5:45 pm - 1:50 pm
BHD
-
ORD
26h 05m1 stop
$643British Airways
lun., ene. 12 - lun., ene. 19
Multiple Airlines Logo
6:30 pm - 4:10 pm
ORD
-
BFS
15h 40m2 stops
Multiple Airlines Logo
9:05 pm - 5:20 pm
BFS
-
ORD
26h 15m3 stops
$651Multiple Airlines
mié., ene. 28 - mié., feb. 4
Multiple Airlines Logo
6:30 pm - 8:15 pm
ORD
-
BFS
19h 45m2 stops
Multiple Airlines Logo
10:20 pm - 3:00 pm
BFS
-
ORD
46h 40m3 stops
$656Multiple Airlines
lun., ene. 12 - lun., ene. 19
Virgin Atlantic Logo
11:05 am - 4:50 pm
ORD
-
BHD
23h 45m2 stops
Virgin Atlantic Logo
5:20 pm - 5:45 pm
BHD
-
ORD
30h 25m2 stops
$671Virgin Atlantic
dom., ene. 18 - lun., feb. 2
American Airlines Logo
6:25 pm - 1:55 pm
ORD
-
BHD
13h 30m1 stop
American Airlines Logo
9:10 am - 5:00 pm
BHD
-
ORD
13h 50m1 stop
$692American Airlines
dom., ene. 18 - dom., ene. 25

KLM flights from Chicago to Northern Ireland

Our best KLM deals on Chicago to Northern Ireland flight tickets
KLM
Jan 18
MDW5:59 pmChicago Midway
16h 51m
2 stops
BHD4:50 pmBelfast City
Feb 2
BHD5:20 pmBelfast City
30h 09m
2 stops
MDW5:29 pmChicago Midway
$672
Find similar
KLM
Jan 29
MDW6:14 pmChicago Midway
16h 36m
2 stops
BHD4:50 pmBelfast City
Feb 1
BHD5:20 pmBelfast City
30h 09m
2 stops
MDW5:29 pmChicago Midway
$1,095
Find similar
KLM
Dec 18
MDW5:26 pmChicago Midway
21h 34m
2 stops
BHD9:00 pmBelfast City
Dec 21
BHD6:30 amBelfast City
16h 49m
2 stops
MDW5:19 pmChicago Midway
$3,480
Find similar

American Airlines flights from Chicago to Northern Ireland

Our best American Airlines deals on Chicago to Northern Ireland flight tickets
American Airlines
Jan 18
ORD6:25 pmChicago O'Hare Intl
13h 30m
1 stop
BHD1:55 pmBelfast City
Jan 25
BHD9:10 amBelfast City
13h 50m
1 stop
ORD5:00 pmChicago O'Hare Intl
$692
Find similar
American Airlines
Mar 12
ORD7:45 pmChicago O'Hare Intl
13h 15m
1 stop
BHD2:00 pmBelfast City
Mar 19
BHD6:35 amBelfast City
16h 25m
1 stop
ORD6:00 pmChicago O'Hare Intl
$750
Find similar
American Airlines
Jan 29
ORD1:25 pmChicago O'Hare Intl
14h 55m
2 stops
BHD10:20 amBelfast City
Feb 1
BHD6:30 amBelfast City
17h 12m
2 stops
ORD5:42 pmChicago O'Hare Intl
$766
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago to Northern Ireland 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 diciembre 16, 2025.
Use the filters below to find and compare flights from Chicago to Northern Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

vie. 1/30

6:30 pm-10:00 pm

2 stops21h 30m

Belfast Intl

vie. 2/6

8:05 am-5:20 pm

2 stops15h 15m

$605

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

vie. 1/30

6:30 pm-10:00 pm

2 stops21h 30m

Belfast Intl

vie. 2/6

11:45 am-5:20 pm

3 stops35h 35m

$611

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

dom. 1/18

6:30 pm-6:55 pm

2 stops18h 25m

Belfast Intl

lun. 2/2

10:20 pm-3:00 pm

3 stops46h 40m

$628

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

mié. 1/28

6:30 pm-8:50 pm

2 stops20h 20m

Belfast Intl

mié. 2/4

7:20 am-5:20 pm

2 stops16h 00m

$630

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

lun. 1/12

4:33 pm-4:05 pm

2 stops17h 32m

Belfast City

lun. 1/19

2:40 pm-1:50 pm

1 stop29h 10m

$640

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

lun. 1/12

9:45 pm-2:15 pm

1 stop10h 30m

Belfast City

lun. 1/19

5:45 pm-1:50 pm

1 stop26h 05m

$643

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

mié. 1/28

6:30 pm-4:10 pm

2 stops15h 40m

Belfast Intl

mié. 2/4

9:05 pm-5:20 pm

3 stops26h 15m

$651

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

lun. 1/12

6:30 pm-8:15 pm

2 stops19h 45m

Belfast Intl

lun. 1/19

10:20 pm-3:00 pm

3 stops46h 40m

$656

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

dom. 1/18

11:05 am-4:50 pm

2 stops23h 45m

Belfast City

lun. 2/2

5:20 pm-5:45 pm

2 stops30h 25m

$671

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

dom. 1/18

6:25 pm-1:55 pm

1 stop13h 30m

Belfast City

dom. 1/25

9:10 am-5:00 pm

1 stop13h 50m

$692

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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See travel insights to Northern Ireland from

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

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 Northern Ireland?

The cheapest day to depart on your flight to Northern Ireland is on a Sunday when prices can be found for as low as $718. This is often the case because there is less demand to fly during this day of the week. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Chicago to Northern Ireland for around $853.

What is the cheapest time of day to depart on your flight to Northern Ireland?

In the evening is the cheapest time of day to fly from Chicago to Northern Ireland when you can find flight prices for as low as $751. Flying to Northern Ireland in the evening is an ideal time because this is during off-peak travel hours. Flights in the afternoon are often more expensive with an average ticket price of $782.

Cheap Chicago to Northern Ireland flight deals and tips

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

Fastest flight time

10h 30m

Direct flights

None
The fastest flight from Chicago to Northern Ireland takes 10h 30m
There are no direct flights from Chicago to Northern Ireland. There are no popular flight routes from Chicago to Northern Ireland.
Search flight deals

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

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

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago to Northern Ireland.

  • What documentation or ID do you need to fly to Northern Ireland?

    The travel and health documents you'll need for your trip to Northern Ireland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Northern Ireland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Chicago to Northern Ireland

Compare and see reviews for airlines that fly from Chicago to Northern Ireland with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $577Free CancellationRating
6.7
7,580 reviews
Search British Airways flights

Why use momondo?

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

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 Northern Ireland from Chicago.

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

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

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

momondo helps you find the best flight between Chicago and Northern Ireland 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 Chicago to Northern Ireland right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Chicago to Northern Ireland flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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Find better results for your trip to Northern Ireland

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