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Northern Ireland

$343+ Cheap flights from Illinois to Northern Ireland

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/13. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BFS
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
1 adult, Economy
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Cheap flight deals from Illinois to Northern Ireland

Cheapest flights from Illinois to Northern Ireland
Explore the most affordable flight options available from Illinois to Northern Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

This American Airlines deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/288:45 pm
ORD
-
BHD
1 stop13h 50m
American Airlines
Tue 2/310:00 am
BHD
-
ORD
1 stop13h 00m
American Airlines
Deal found 1/28$657
This British Airways deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/115:00 pm
ORD
-
BHD
1 stop11h 30m
British Airways
Mon 10/196:30 pm
BHD
-
ORD
1 stop27h 25m
British Airways
Deal found 1/27$666
This Delta deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/114:20 pm
ORD
-
BHD
1 stop11h 00m
Delta
Wed 10/215:30 pm
BHD
-
ORD
2 stops29h 03m
Delta
Deal found 1/27$695
This Cheapflightsfares deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/205:10 pm
ORD
-
BHD
1 stop11h 20m
British Airways
Fri 2/276:45 am
BHD
-
ORD
1 stop18h 00m
British Airways
Deal found 1/27$700
This British Airways deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/45:10 pm
ORD
-
BHD
1 stop11h 05m
British Airways
Sun 3/89:10 am
BHD
-
ORD
1 stop15h 35m
British Airways
Deal found 1/26$706
This oojo deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/111:43 pm
ORD
-
BHD
2 stops14h 47m
British Airways
Sun 10/188:05 pm
BHD
-
ORD
1 stop28h 10m
British Airways
Deal found 1/27$711
This British Airways deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/115:00 pm
ORD
-
BHD
1 stop11h 30m
British Airways
Sat 10/177:00 pm
BHD
-
ORD
1 stop29h 15m
British Airways
Deal found 1/27$716
This Delta deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/201:26 pm
MDW
-
BHD
2 stops21h 24m
Delta
Fri 2/276:30 am
BHD
-
MDW
2 stops18h 10m
Delta
Deal found 1/27$745
This Delta deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/101:30 pm
STL
-
BHD
2 stops21h 20m
Delta
Sat 11/286:30 am
BHD
-
STL
2 stops22h 33m
Delta
Deal found 1/26$822
This British Airways deal was found by Cheapflights users on 1/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/2510:37 am
STL
-
BHD
2 stops17h 38m
British Airways
Sun 3/18:25 pm
BHD
-
STL
2 stops33h 23m
British Airways
Deal found 1/26$841
This Mytrip deal was found by Cheapflights users on 1/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/155:05 pm
ORD
-
BFS
2 stops20h 50m
Multiple Airlines
Sun 3/227:30 am
BFS
-
ORD
2 stops35h 55m
Multiple Airlines
Deal found 1/28$883
This Mytrip deal was found by Cheapflights users on 1/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/1312:50 pm
ORD
-
BFS
2 stops28h 10m
Multiple Airlines
Fri 3/206:00 pm
BFS
-
ORD
2 stops22h 05m
Multiple Airlines
Deal found 1/27$961

Find flight deals from Illinois to Northern Ireland

Keep the following information in mind while searching for Illinois to Northern Ireland flight deals. Data was last updated January 29, 2026.

Round-trip from

$700
(Cheapflightsfares)

One-way from

$343
(KAYAK)
From Illinois to Northern Ireland
Search Deals
One-way flight from Illinois to Northern Ireland
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois 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, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
Use the filters below to find and compare flights from Illinois to Northern Ireland that are best for you.

Fly from

Illinois

Fly to

Northern Ireland

Route

Depart

Return

Price

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 3/4

5:10 pm-10:15 am

1 stop11h 05m

Belfast City

Sun 3/8

9:10 am-7:45 pm

1 stop15h 35m

$706

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Fri 2/20

1:39 pm-10:30 am

2 stops14h 51m

Belfast City

Fri 2/27

6:45 am-5:58 pm

2 stops17h 13m

$721

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 3/22

5:25 pm-4:50 pm

1 stop18h 25m

Belfast City

Mon 3/30

5:30 pm-2:15 pm

1 stop26h 45m

$739

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Fri 2/20

1:26 pm-4:50 pm

2 stops21h 24m

Belfast City

Fri 2/27

6:30 am-6:40 pm

2 stops18h 10m

$745

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 3/22

5:25 pm-4:50 pm

1 stop18h 25m

Belfast City

Sun 3/29

5:30 pm-2:30 pm

1 stop27h 00m

$781

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sat 3/14

6:47 pm-10:20 am

2 stops34h 33m

Belfast City

Sun 3/29

8:10 pm-1:22 pm

2 stops47h 12m

$805

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 3/18

3:39 pm-2:15 pm

2 stops17h 36m

Belfast City

Sun 3/22

8:25 pm-7:56 pm

2 stops28h 31m

$827

St. LouisBelfast

STL - BHD

STLBHD

Lambert-St Louis

Wed 2/25

10:37 am-10:15 am

2 stops17h 38m

Belfast City

Sun 3/1

8:25 pm-11:48 pm

2 stops33h 23m

$841

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Sun 3/15

5:05 pm-6:55 pm

2 stops20h 50m

Belfast Intl

Sun 3/22

7:30 am-2:25 pm

2 stops35h 55m

$883

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Fri 3/20

12:51 pm-10:30 am

2 stops16h 39m

Belfast City

Thu 3/26

6:35 am-9:30 pm

2 stops19h 55m

$916

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 21 results
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Best time to book a flight from Illinois to Northern Ireland

Have a flexible travel schedule? Discover the best time to fly to Northern Ireland from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Northern Ireland
No data available for this route at this time. Please check back soon.

Reviews of airlines servicing Northern Ireland

Get insights into the airlines that provide service to Northern Ireland. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Northern Ireland. Reviews last updated January 29, 2026.
Get a feel of what it's like to fly with British Airways from Illinois to Northern Ireland by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,705 reviews

Food

6.4

Boarding

6.9

Comfort

6.8

Overall

6.7

Crew

7.6

Entertainment

6.4

Reviews

1 / 20
8.0
Excellent

Lakshmi,Dec 2025

SFO - LHR

I had a great time on the flight with good entertainment and food. The staff was awesome. The only thing was there was a delay in boarding and takeoff from London. However, I was pleasantly surprised when the airline sent an apology for the few later landing in Mumbai. They did not have WiFi on board on the leg from London to Mumbai but that was okay for me. On the first leg from SF to London, a couple of seats ahead of me had issues with their display so they could not watch anything on their screens although the stewardess gas be them an option to use the WiFi on their devices. This did not affect me, however, so that was cool. I would recommend British Airways. This was my first time flying with them and I had a lovely flight.
British Airways
6.7
Okay
7,705 reviews
British Airways
6.7
Okay
7,705 reviews

Food

6.4

Boarding

6.9

Comfort

6.8

Overall

6.7

Crew

7.6

Entertainment

6.4

Reviews

1 / 20
8.0
Excellent

Lakshmi,Dec 2025

SFO - LHR

I had a great time on the flight with good entertainment and food. The staff was awesome. The only thing was there was a delay in boarding and takeoff from London. However, I was pleasantly surprised when the airline sent an apology for the few later landing in Mumbai. They did not have WiFi on board on the leg from London to Mumbai but that was okay for me. On the first leg from SF to London, a couple of seats ahead of me had issues with their display so they could not watch anything on their screens although the stewardess gas be them an option to use the WiFi on their devices. This did not affect me, however, so that was cool. I would recommend British Airways. This was my first time flying with them and I had a lovely flight.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Northern Ireland. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Illinois to Northern Ireland?

    A quick flight from Illinois to Northern Ireland can take about 11h 05m. British Airways provides one of the quickest options available for as low as $706. Illinois and Northern Ireland are separated by a distance of 3644 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • Can I find deals for flights from Illinois to Northern Ireland that include hotel bookings?

    Yes. In addition to deals on Illinois to Northern Ireland flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Northern Ireland?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Northern Ireland.

  • Can I find deals for business class flights from Illinois to Northern Ireland?

    Yes. Cheapflights offers flight deals from Illinois to Northern Ireland by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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Alternative routes for Illinois to Northern Ireland

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Illinois to Northern Ireland

Discover the top airline that operate flights from Illinois to Northern Ireland. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$577Average$708FlexibilityNo cancel feeOn-time70%

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