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 28h 45m. 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.

In terms of precipitation, rainfall in Chicago O'Hare Intl Airport ranges from 43.0 - 125.0 inches per month. August is typically the wettest month, when rainfall can reach 125.0 mm. January is typically the driest time to visit Chicago O'Hare Intl Airport when rainfall is around 43.0 mm.

If weather is an important factor for your trip to Chicago O'Hare Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 23.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around -5.0 C).

What is the cheapest time of day to fly from BFS to ORD?

When flying from Belfast to Chicago O'Hare Intl Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

£335+ Cheap Flights from Belfast to Chicago O'Hare Intl Airport

Cheap flight deals from Belfast to O'Hare Intl

Enter your travel dates to find the best prices.

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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 6 November 2026.

Thu 3/1215:25 -

2 stops22h 39m

Mon 7/1221:11 -

2 stops31h 39m

Deal found 3/11£709

Thu 3/1214:10 -

1 stop29h 35m

Mon 7/1221:50 -

1 stop13h 35m

Deal found 3/11£788

Wed 2/1208:40 -

2 stops17h 43m

Sun 6/1221:50 -

1 stop15h 00m

Deal found 2/11£793

Thu 5/1108:50 -

1 stop15h 55m

Mon 9/1120:30 -

1 stop14h 55m

Deal found 2/11£1,302

Find flight deals from Belfast to O'Hare Intl

Round-trip from	£709
One-way from	£335

Iberia
3/12-7/12
4 total stops
54h 18m total
Belfast to Chicago

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20/3-31/12
3 total stops
43h 00m total
Belfast to Chicago

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Belfast to Chicago O'Hare Intl Airport that are best for you.

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Route

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Price

Cheapest return flight

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Sun 29/11

17:55-17:20

3 stops53h 25m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£368

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Sun 21/3

07:00-18:20

3 stops40h 20m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£377

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Sat 20/3

09:25-21:25

2 stops41h 00m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£435

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Sun 21/3

15:15-20:15

1 stop34h 00m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£568

Fastest return journey

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Sat 20/3

06:35-15:10

1 stop13h 35m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£607

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Sat 28/11

10:10-19:55

3 stops39h 45m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£631

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Thu 3/12

15:25-15:35

1 stop30h 10m

Chicago O'Hare Intl

Mon 7/12

21:50-15:55

1 stop12h 05m

£733

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Thu 3/12

20:00-18:45

1 stop28h 45m

Chicago O'Hare Intl

Mon 7/12

15:20-14:15

2 stops16h 55m

£788

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Wed 2/12

08:40-18:45

1 stop16h 05m

Chicago O'Hare Intl

Sun 6/12

21:50-18:50

1 stop15h 00m

£788

BelfastChicago

BHD Belfast City - ORD Chicago O'Hare Intl

BHDORD

Belfast City

Sat 28/11

17:15-14:25

1 stop27h 10m

Chicago O'Hare Intl

Wed 31/12

00:00-07:00

Nonstop0h 00m

£1,046

Flights are sorted by cheapest return flights first.

Deals found on 2/11

Sorted by cheapest first

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.

BF1-ORD

BHD-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 Belfast to Chicago O'Hare Intl Airport

BF1-ORD

BHD-ORD

No data available for this route at this time. Please check back soon.

Related info for your journey

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 28h 45m. 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.
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.

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Cheap flights from Belfast to Chicago O'Hare Intl Airport from £335

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 20/3. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Belfast to O'Hare Intl

Cheapest flights from Belfast to O'Hare IntlExplore 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 6 November 2026.

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 6 November 2026.

Best flights from Belfast to O'Hare IntlDiscover carefully curated flight deals from Belfast to O'Hare Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 6 November 2026.

Discover carefully curated flight deals from Belfast to O'Hare Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 6 November 2026.

Last-minute flights from Belfast to O'Hare IntlDiscover last-minute flight deals from Belfast to O'Hare Intl. Data last updated 6 November 2026 and is based on user searches.

Discover last-minute flight deals from Belfast to O'Hare Intl. Data last updated 6 November 2026 and is based on user searches.

One-way flights from Belfast to O'Hare IntlSearch for one-way flight options from Belfast to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated 6 November 2026.

Search for one-way flight options from Belfast to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated 6 November 2026.

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Related info for your journey

How long is the flight from Belfast to Chicago O'Hare Intl Airport?

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

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

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

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

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Alternative routes for Belfast to O'Hare Intl

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Other flights to O'Hare Intl

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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 6 November 2026.

Best flights from Belfast to O'Hare Intl
Discover carefully curated flight deals from Belfast to O'Hare Intl that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 6 November 2026.

Last-minute flights from Belfast to O'Hare Intl
Discover last-minute flight deals from Belfast to O'Hare Intl. Data last updated 6 November 2026 and is based on user searches.

One-way flights from Belfast to O'Hare Intl
Search for one-way flight options from Belfast to O'Hare Intl. Find affordable one-way fares based on user searches. Data last updated 6 November 2026.