Cheap flights from Northern Ireland to Chicago O'Hare Intl Airport from £602
This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 21/8. Fares are subject to change and may not be available on all flights or dates of travel.
Cheap 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 4 July 2025.
Find flight deals from Northern Ireland to O'Hare Intl
Cheapest flights from Northern Ireland to O'Hare IntlExplore 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 4 July 2025.
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 4 July 2025.
Cheapflights Fare Finder
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 858,174 searches. Data last updated 4 July 2025.
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
BelfastChicago
BFS - ORD
BFSORD
Belfast Intl
Thu 21/8
06:00-19:29
2 stops19h 29m
Chicago O'Hare Intl
Mon 25/8
22:15-17:20
2 stops13h 05m
BelfastChicago
BHD - ORD
BHDORD
Belfast City
Thu 21/8
09:35-17:00
1 stop13h 25m
Chicago O'Hare Intl
Mon 25/8
20:35-15:40
1 stop13h 05m
BelfastChicago
BHD - ORD
BHDORD
Belfast City
Thu 21/8
06:35-14:40
1 stop14h 05m
Chicago O'Hare Intl
Mon 25/8
17:54-15:40
2 stops15h 46m
BelfastChicago
BHD - ORD
BHDORD
Belfast City
Thu 21/8
09:35-20:11
2 stops16h 36m
Chicago O'Hare Intl
Mon 25/8
14:44-12:55
2 stops16h 11m
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.
Cheapflights Insights
Everything you need to know about your flight from Northern Ireland to Chicago O'Hare Intl Airport
Reviews of airlines servicing O'Hare Intl
Get insights into the airlines that provide service to O'Hare Intl. 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 O'Hare Intl. Reviews last updated 4 July 2025.
Read reviews from past customers who have flown with American Airlines and British Airways from Northern Ireland to Chicago O'Hare Intl Airport. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
Crew
Boarding
Overall
Entertainment
Food
Reviews
Anonymous,Oct 2024
LAX - ORD
Comfort
Crew
Boarding
Overall
Entertainment
Food
Reviews
Anonymous,Oct 2024
LAX - ORD
Comfort
Crew
Boarding
Overall
Entertainment
Food
Reviews
Anonymous,Oct 2024
LAX - ORD
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.
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Alternative routes for Northern Ireland to O'Hare Intl
See prices for flight routes from nearby airports that may be better suited for you.
Top airline flying from Northern Ireland to O'Hare Intl
Discover the top airline that operate flights from Northern Ireland to O'Hare Intl. 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 858,174 searches. Data last updated 4 July 2025.
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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.