Cheap flights from Northern Ireland to Chicago O'Hare Intl Airport from £325
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/2. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — ORD
18 Oct — 25 Oct1
Return
1 adult
Economy
Return
1 adult, Economy, 0 bags
Cheap flight deals from Northern Ireland to O'Hare Intl
Enter your travel dates to find the best prices.
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Best
Last-minute
One-way
Cheapest flights from Northern Ireland to O'Hare Intl
Explore the most affordable flight options available from Northern Ireland to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2026.
Thu 29/1006:30 -
2 stops16h 50m
Thu 5/1118:30 -
2 stops16h 35m
Deal found 14/9£619
Thu 24/906:30 -
1 stop11h 55m
Mon 28/922:25 -
1 stop11h 05m
Deal found 14/9£636
Thu 24/909:35 -
1 stop12h 20m
Mon 28/920:50 -
1 stop14h 35m
Deal found 16/9£651
Sun 1/1107:30 -
2 stops15h 50m
Sun 8/1118:30 -
2 stops20h 00m
Deal found 17/9£660
Sun 1/1106:30 -
1 stop13h 15m
Sun 8/1117:10 -
1 stop11h 35m
Deal found 17/9£673
Thu 5/1111:05 -
1 stop13h 40m
Mon 9/1121:50 -
1 stop13h 35m
Deal found 16/9£680
Wed 4/1111:40 -
1 stop13h 50m
Sun 8/1116:50 -
2 stops15h 00m
Deal found 13/9£684
Thu 24/906:35 -
1 stop16h 40m
Mon 28/917:55 -
1 stop15h 35m
Deal found 14/9£716
Thu 8/1010:30 -
2 stops34h 40m
Mon 12/1017:10 -
2 stops20h 10m
Deal found 15/9£749
Best flights from Northern Ireland to O'Hare Intl
Discover carefully curated flight deals from Northern Ireland to O'Hare Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 September 2026.
Sun 1/1106:30 -
2 stops22h 00m
Sun 8/1118:35 -
1 stop13h 15m
Deal found 17/9£677
Thu 5/1111:05 -
1 stop13h 40m
Mon 9/1116:40 -
2 stops17h 25m
Deal found 16/9£680
Thu 29/1008:50 -
1 stop13h 25m
Thu 5/1118:25 -
1 stop21h 30m
Deal found 14/9£734
Wed 4/1109:15 -
1 stop16h 15m
Sun 8/1117:10 -
1 stop14h 40m
Deal found 12/9£684
Thu 8/1010:30 -
2 stops34h 40m
Mon 12/1017:10 -
2 stops20h 10m
Deal found 15/9£749
Thu 1/1009:50 -
2 stops15h 25m
Mon 5/1020:50 -
1 stop12h 40m
Deal found 12/9£699
Last-minute flights from Northern Ireland to O'Hare Intl
Discover last-minute flight deals from Northern Ireland to O'Hare Intl. Data last updated 18 September 2026 and is based on user searches.
Thu 24/906:30 -
1 stop11h 55m
Mon 28/922:25 -
1 stop11h 05m
Deal found 14/9£636
Thu 24/909:35 -
1 stop12h 20m
Mon 28/920:50 -
1 stop14h 35m
Deal found 16/9£651
Thu 24/909:50 -
2 stops16h 40m
Mon 28/910:30 -
2 stops16h 50m
Deal found 16/9£692
Thu 24/917:30 -
2 stops45h 57m
Mon 28/918:00 -
2 stops40h 55m
Deal found 14/9£704
Thu 24/907:00 -
2 stops15h 46m
Mon 28/917:48 -
2 stops15h 42m
Deal found 14/9£709
Thu 24/906:35 -
1 stop16h 40m
Mon 28/917:55 -
1 stop15h 35m
Deal found 14/9£716
Thu 1/1009:50 -
2 stops15h 25m
Mon 5/1017:29 -
2 stops16h 01m
Deal found 12/9£699
Thu 8/1010:30 -
2 stops34h 40m
Mon 12/1017:10 -
2 stops20h 10m
Deal found 15/9£749
Tue 20/1007:00 -
2 stops18h 15m
Tue 27/1016:55 -
2 stops16h 00m
Deal found 12/9£681
Tue 20/1006:30 -
1 stop12h 00m
Tue 27/1013:31 -
2 stops16h 19m
Deal found 12/9£756
Thu 29/1006:30 -
2 stops16h 50m
Thu 5/1118:30 -
2 stops16h 35m
Deal found 14/9£619
One-way flights from Northern Ireland to O'Hare Intl
Search for one-way flight options from Northern Ireland to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated 18 September 2026.
Mon 8/214:20 -
3 stops33h 00m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 17/9£325
Sat 30/112:05 -
3 stops35h 15m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 17/9£325
Sun 31/106:50 -
3 stops38h 05m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 17/9£346
Mon 8/211:40 -
1 stop13h 35m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 17/9£467
Sat 30/118:15 -
1 stop30h 30m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 17/9£520
Fri 9/1007:00 -
3 stops38h 03m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 15/9£1,597
Fri 9/1009:35 -
1 stop14h 40m
Wed 31/1200:00 -
Nonstop0h 00m
Deal found 15/9£3,321
Find flight deals from Northern Ireland to O'Hare Intl
Keep the following information in mind while searching for Northern Ireland to O'Hare Intl flight deals. Data was last updated 18 September 2026.
Customise your flight search to find flights from Northern Ireland to O'Hare Intl 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 7,457,451 searches. Data last updated 18 September 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 return flight
BelfastChicago
BHD Belfast City - ORD Chicago O'Hare Intl
BHDORD
Belfast City
Sat 30/1
12:05-17:20
3 stops35h 15m
Chicago O'Hare Intl
Wed 31/12
00:00-07:00
Nonstop0h 00m
£325
BelfastChicago
BHD Belfast City - ORD Chicago O'Hare Intl
BHDORD
Belfast City
Sun 31/1
06:50-14:55
2 stops38h 05m
Chicago O'Hare Intl
Wed 31/12
00:00-07:00
Nonstop0h 00m
£393
BelfastChicago
BHD Belfast City - ORD Chicago O'Hare Intl
BHDORD
Belfast City
Mon 8/2
15:20-19:15
2 stops33h 55m
Chicago O'Hare Intl
Wed 31/12
00:00-07:00
Nonstop0h 00m
£422
BelfastChicago
BHD Belfast City - ORD Chicago O'Hare Intl
BHDORD
Belfast City
Sat 30/1
18:15-18:45
1 stop30h 30m
Chicago O'Hare Intl
Wed 31/12
00:00-07:00
Nonstop0h 00m
£520
BelfastChicago
BHD Belfast City - ORD Chicago O'Hare Intl
BHDORD
Belfast City
Sun 1/11
06:30-23:30
2 stops22h 00m
Chicago O'Hare Intl
Sun 8/11
18:35-13:50
1 stop13h 15m
£677
BelfastChicago
BHD Belfast City - ORD Chicago O'Hare Intl
BHDORD
Belfast City
Thu 5/11
11:05-18:45
1 stop13h 40m
Chicago O'Hare Intl
Mon 9/11
16:40-16:05
2 stops17h 25m
£680
BelfastChicago
BHD Belfast City - ORD Chicago O'Hare Intl
BHDORD
Belfast City
Wed 4/11
09:15-19:30
1 stop16h 15m
Chicago O'Hare Intl
Sun 8/11
17:10-13:50
1 stop14h 40m
£684
BelfastChicago
BHD Belfast City - ORD Chicago O'Hare Intl
BHDORD
Belfast City
Thu 1/10
09:50-19:15
2 stops15h 25m
Chicago O'Hare Intl
Mon 5/10
20:50-15:30
1 stop12h 40m
£699
BelfastChicago
BFS Belfast Intl - ORD Chicago O'Hare Intl
BFSORD
Belfast Intl
Thu 29/10
08:50-17:15
1 stop13h 25m
Chicago O'Hare Intl
Thu 5/11
18:25-21:55
1 stop21h 30m
£734
BelfastChicago
BFS Belfast Intl - ORD Chicago O'Hare Intl
BFSORD
Belfast Intl
Thu 8/10
10:30-15:10
2 stops34h 40m
Chicago O'Hare Intl
Mon 12/10
17:10-19:20
2 stops20h 10m
£749
Flights are sorted by cheapest return flights first.
Deals found on 17/9
Showing 1-10 of 12 resultsSorted by cheapest first
1
2
Best time to book a flight from Northern Ireland to O'Hare Intl
Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Northern Ireland with our price prediction graph.
BHD-ORD
BFS-ORD
Estimated return 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 Northern Ireland to Chicago O'Hare Intl Airport
GBNIR-ORD
BHD-ORD
BFS-ORD
No data available for this route at this time. Please check back soon.
Related info for your journey
Find useful and relevant information for your journey from Northern Ireland to O'Hare Intl. 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 Northern Ireland to Chicago O'Hare Intl Airport?
For as low as £680, Iberia can have you in Chicago O'Hare Intl Airport from Northern Ireland in 13h 40m. There are 3644 mi between Northern Ireland and Chicago O'Hare Intl Airport. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
Can I find deals for flights from Northern Ireland to O'Hare Intl that include hotel bookings?
Yes. In addition to deals on Northern Ireland to O'Hare Intl flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Northern Ireland to O'Hare Intl?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Northern Ireland to O'Hare Intl.
Can I find deals for business class flights from Northern Ireland to O'Hare Intl?
Yes. Cheapflights offers flight deals from Northern Ireland to O'Hare Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
Explore flights to O'Hare Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 18 September 2026.
Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Northern Ireland to O'Hare Intl?
When you search for this flight from Northern Ireland to O'Hare Intl, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.
Why should you use Cheapflights to find cheap flight tickets from Northern Ireland to O'Hare Intl?
Millions of users choose and trust Cheapflights to book the best flight deals from Northern Ireland to O'Hare Intl for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.
Can Cheapflights find flights from Northern Ireland to O'Hare Intl with no change fees?
Need flexible booking options for your flight to O'Hare Intl from Northern Ireland? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.
Can Cheapflights notify me if prices for flights from Northern Ireland to O'Hare Intl become cheaper?
Yes, Cheapflights offers price alerts on Northern Ireland to O'Hare Intl flights so you can book your travel at the perfect time. Price Alerts can be enabled by clicking the bell icon next to the flight deals above and providing your email address where you want to receive the alerts.
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