Find flights
When to book
Airlines
FAQs

Cheap flights from Belfast to Chicago O'Hare Intl Airport from £501

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/9. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — ORD
24 Aug — 31 Aug1
1 adult

Cheap flight deals from Belfast to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Belfast (BF1) to O'Hare Intl (ORD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 19 August 2025.

Round-trip from

£501

Popular in

August

Cheapest in

September

Average price

£884
British Airways
  • British Airways
  • 15/9-22/9
  • 2 total stops
  • 39h 05m total
  • Belfast to Chicago
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (£1 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£18 potential savings vs. average return price).
Search Deals
Average for round-trip flights in August 2025
Search Deals

Find flight deals from Belfast to O'Hare Intl

Cheapest flights from Belfast to O'Hare Intl
Explore the most affordable flight options available from Belfast to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 19 August 2025.

Mon 15/913:50BHD - ORD
1 stop28h 00mMultiple Airlines
Mon 22/922:35ORD - BHD
1 stop11h 05mMultiple Airlines
Deal found 18/8£501
Mon 15/906:40BHD - ORD
1 stop14h 10mBritish Airways
Mon 22/922:35ORD - BHD
1 stop12h 55mBritish Airways
Deal found 18/8£516
Mon 15/906:30BHD - ORD
1 stop14h 10mKLM
Mon 22/918:50ORD - BHD
2 stops16h 05mKLM
Deal found 18/8£531
Wed 1/1007:15BFS - ORD
2 stops20h 00mMultiple Airlines
Wed 8/1019:25ORD - BFS
2 stops14h 05mMultiple Airlines
Deal found 17/8£542
Mon 15/906:30BHD - ORD
2 stops20h 45mVirgin Atlantic
Mon 22/917:15ORD - BHD
2 stops17h 40mVirgin Atlantic
Deal found 18/8£547
Mon 15/908:10BFS - ORD
2 stops16h 50mMultiple Airlines
Mon 22/915:45ORD - BFS
2 stops13h 35mMultiple Airlines
Deal found 18/8£570
Mon 8/915:30BFS - ORD
2 stops27h 50mMultiple Airlines
Mon 15/919:05ORD - BFS
2 stops18h 00mMultiple Airlines
Deal found 16/8£596
Wed 15/1009:50BHD - ORD
2 stops15h 10mAer Lingus
Tue 21/1015:45ORD - BHD
2 stops15h 05mAer Lingus
Deal found 17/8£3,360
Wed 15/1006:30BHD - ORD
1 stop14h 10mVirgin Atlantic
Tue 21/1016:15ORD - BHD
1 stop23h 00mVirgin Atlantic
Deal found 17/8£3,557
Wed 15/1017:25BHD - ORD
1 stop26h 45mMultiple Airlines
Tue 21/1013:25ORD - BHD
2 stops21h 30mMultiple Airlines
Deal found 17/8£3,577
Thu 16/1012:40BHD - ORD
1 stop11h 35mBritish Airways
Tue 21/1022:35ORD - BHD
1 stop10h 45mBritish Airways
Deal found 17/8£3,675
Wed 15/1010:20BHD - ORD
2 stops16h 55mMultiple Airlines
Mon 20/1021:15ORD - BHD
1 stop14h 15mMultiple Airlines
Deal found 17/8£3,944

Cheapflights Fare Finder

 
Customise your flight search to find flights from Belfast 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 19 August 2025.
Use the filters below to find and compare flights from Belfast to Chicago O'Hare Intl Airport that are best for you.

Fly from

Belfast

Fly to

O'Hare Intl

Route

Depart

Return

Price

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mon 15/9

13:50-11:50

1 stop28h 00m

Chicago O'Hare Intl

Mon 22/9

22:35-15:40

1 stop11h 05m

£501

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mon 15/9

06:40-14:50

1 stop14h 10m

Chicago O'Hare Intl

Mon 22/9

22:35-17:30

1 stop12h 55m

£516

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mon 15/9

06:30-14:40

1 stop14h 10m

Chicago O'Hare Intl

Mon 22/9

18:50-16:55

2 stops16h 05m

£531

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Wed 1/10

07:15-21:15

2 stops20h 00m

Chicago O'Hare Intl

Wed 8/10

19:25-15:30

2 stops14h 05m

£542

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mon 15/9

06:30-21:15

2 stops20h 45m

Chicago O'Hare Intl

Mon 22/9

17:15-16:55

2 stops17h 40m

£547

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 15/9

08:10-19:00

2 stops16h 50m

Chicago O'Hare Intl

Mon 22/9

15:45-11:20

2 stops13h 35m

£570

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 8/9

15:30-13:20

2 stops27h 50m

Chicago O'Hare Intl

Mon 15/9

19:05-19:05

2 stops18h 00m

£596

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Wed 15/10

09:50-19:00

2 stops15h 10m

Chicago O'Hare Intl

Tue 21/10

15:45-12:50

2 stops15h 05m

£3,360

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Wed 15/10

06:30-14:40

1 stop14h 10m

Chicago O'Hare Intl

Tue 21/10

16:15-21:15

1 stop23h 00m

£3,557

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Wed 15/10

17:25-14:10

1 stop26h 45m

Chicago O'Hare Intl

Tue 21/10

13:25-16:55

2 stops21h 30m

£3,577

Flights are sorted by cheapest return flights first.

Deals found on 18/8

Showing 1-10 of 13 results
1
2

Best time to book a flight from Belfast to O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Belfast with our price prediction graph.
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 Belfast to Chicago O'Hare Intl Airport
No data available for this route at this time. Please check back soon.

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 19 August 2025.
See what other customers who have flown with British Airways from Belfast to Chicago O'Hare Intl Airport have to say. 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
7,283 reviews
Check prices

Comfort

6.7

Entertainment

6.4

Boarding

6.9

Overall

6.7

Food

6.3

Crew

7.6

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

LHR - LAX

We needed assistance (wheelchair, golf cart, whatever ) to get to next gate. We requested it. None was provided.
British Airways
6.7
Okay
7,283 reviews
British Airways
6.7
Okay
7,283 reviews
Check prices

Comfort

6.7

Entertainment

6.4

Boarding

6.9

Overall

6.7

Food

6.3

Crew

7.6

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

LHR - LAX

We needed assistance (wheelchair, golf cart, whatever ) to get to next gate. We requested it. None was provided.

Related info for your journey

Find useful and relevant information for your journey from Belfast 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 Belfast to Chicago O'Hare Intl Airport?

    Departing from Belfast to Chicago O'Hare Intl Airport will take you 14h 10m. There are 3644 mi between Belfast and Chicago O'Hare Intl Airport. Both multi-stop and direct flights can be found to your destination and back.

  • What is the cheapest airline to fly from Belfast to Chicago O'Hare Intl Airport round-trip?

    Flying on British Airways is currently your cheapest option to Chicago O'Hare Intl Airport, with prices starting at £480.

  • Can I find deals for flights from Belfast to O'Hare Intl that include hotel bookings?

    Yes. In addition to deals on Belfast to O'Hare Intl flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Belfast 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 Belfast to O'Hare Intl.

  • Can I find deals for business class flights from Belfast to O'Hare Intl?

    Yes. Cheapflights offers flight deals from Belfast 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.

  • What is the cheapest month to book a flight from Belfast to Chicago O'Hare Intl Airport?

    Currently, January is the cheapest month in which you can book a flight from Belfast to Chicago O'Hare Intl Airport (average of £595). Flying from Belfast to Chicago O'Hare Intl Airport in July is currently the most expensive (average of £843). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Travelling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Downers Grove
Elk Grove Village
Rosemont

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Belfast to O'Hare Intl

See prices for flight routes from nearby airports that may be better suited for you.
Belfast Intl to O'Hare Intl flights
Belfast City to O'Hare Intl flights

Top airline flying from Belfast to O'Hare Intl

Discover the top airline that operate flights from Belfast 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 19 August 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£480Average£616FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

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 Belfast to O'Hare Intl?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to O'Hare Intl from Belfast today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Belfast to O'Hare Intl?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Belfast to O'Hare Intl for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Belfast to O'Hare Intl with no change fees?

Yes! Cheapflights helps users easily find flights from Belfast to O'Hare Intl with no change fees.

Can Cheapflights notify me if prices for flights from Belfast to O'Hare Intl become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.