What are the cheapest airlines flying 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 £466. Additional return tickets that might be worth considering are offered by KLM and Virgin Atlantic, with the lowest prices starting at £484 and £757, respectively.

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.

What is the cheapest month to fly from Belfast to Chicago O'Hare Intl Airport?

Flights from Belfast to Chicago O'Hare Intl Airport lean towards being more expensive in August. Prices are generally better when you fly from Belfast to Chicago O'Hare Intl Airport in September, with the cheapest ticket starting at £460.

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.

£466+ Flights from Belfast to Chicago O'Hare Intl Airport

Cheap flight deals from Belfast to O'Hare Intl

Round-trip from	£466
Popular in	August
Cheapest in	September
Average price	£656

British Airways
22/9-29/9
2 total stops
28h 25m total
Belfast to Chicago

Search Deals

Highest demand for flights based on searches. 1% potential increase in price (£9 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease (£17 potential savings vs. average return price).

Search Deals

Average for round-trip flights in June 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 13 Juni 2025.

Mo 22/906:40BHD - ORD

1 stop14h 10mBritish Airways

Mo 29/921:15ORD - BHD

1 stop14h 15mBritish Airways

Deal found 10/6£466

Mo 22/917:25BHD - ORD

1 stop26h 45mKLM

Mo 29/917:45ORD - BHD

2 stops17h 10mKLM

Deal found 10/6£484

So 7/915:50BHD - ORD

1 stop26h 00mMultiple Airlines

So 14/917:45ORD - BHD

1 stop13h 20mMultiple Airlines

Deal found 10/6£492

Di 15/705:55BFS - ORD

2 stops22h 10mMultiple Airlines

Di 22/719:25ORD - BFS

2 stops13h 35mMultiple Airlines

Deal found 11/6£642

Do 14/817:25BHD - ORD

2 stops30h 40mVirgin Atlantic

Do 21/816:20ORD - BHD

1 stop18h 35mVirgin Atlantic

Deal found 10/6£757

Mo 4/818:50BHD - ORD

2 stops25h 10mAer Lingus

Mo 11/815:45ORD - BHD

2 stops15h 05mAer Lingus

Deal found 10/6£962

Mo 28/717:25BHD - ORD

1 stop26h 45mDelta

So 3/816:20ORD - BHD

1 stop22h 55mDelta

Deal found 12/6£3,566

Di 29/706:35BHD - ORD

1 stop14h 05mAmerican Airlines

Fr 8/821:15ORD - BHD

1 stop12h 15mAmerican Airlines

Deal found 12/6£3,598

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 13 Juni 2025.

Mo 22/906:40BHD - ORD

1 stop14h 10mBritish Airways

Mo 29/921:15ORD - BHD

1 stop14h 15mBritish Airways

Deal found 10/6£466

Mo 22/917:25BHD - ORD

1 stop26h 45mKLM

Mo 29/917:45ORD - BHD

2 stops17h 10mKLM

Deal found 10/6£484

So 7/915:50BHD - ORD

1 stop26h 00mMultiple Airlines

So 14/917:45ORD - BHD

1 stop13h 20mMultiple Airlines

Deal found 10/6£492

Do 14/817:25BHD - ORD

2 stops30h 40mVirgin Atlantic

Do 21/816:20ORD - BHD

1 stop18h 35mVirgin Atlantic

Deal found 10/6£757

Mo 4/818:50BHD - ORD

2 stops25h 10mAer Lingus

Mo 11/815:45ORD - BHD

2 stops15h 05mAer Lingus

Deal found 10/6£962

Di 15/705:55BFS - ORD

2 stops22h 10mMultiple Airlines

Di 22/719:25ORD - BFS

2 stops13h 35mMultiple Airlines

Deal found 11/6£642

Mo 28/717:25BHD - ORD

1 stop26h 45mDelta

So 3/816:20ORD - BHD

1 stop22h 55mDelta

Deal found 12/6£3,566

Di 29/706:35BHD - ORD

1 stop14h 05mAmerican Airlines

Fr 8/821:15ORD - BHD

1 stop12h 15mAmerican Airlines

Deal found 12/6£3,598

Last-minute flights from Belfast to O'Hare Intl
Discover last-minute flight deals from Belfast to O'Hare Intl. Data last updated 13 Juni 2025 and is based on user searches.

Mo 30/619:30BHD - ORD

1 stop22h 25mMultiple Airlines

Mo 7/718:25ORD - BHD

2 stops15h 15mMultiple Airlines

Deal found 11/6£570

Mo 30/606:30BHD - ORD

2 stops15h 48mKLM

Mo 7/719:01ORD - BHD

2 stops15h 54mKLM

Deal found 11/6£695

Mo 7/712:15BHD - ORD

2 stops25h 04mBritish Airways

Mo 14/721:15ORD - BHD

1 stop14h 15mBritish Airways

Deal found 10/6£596

Di 15/705:55BFS - ORD

2 stops22h 10mMultiple Airlines

Di 22/719:25ORD - BFS

2 stops13h 35mMultiple Airlines

Deal found 11/6£642

So 27/706:30BHD - ORD

2 stops22h 21mVirgin Atlantic

So 3/819:59ORD - BHD

2 stops38h 56mVirgin Atlantic

Deal found 10/6£768

Mo 28/717:25BHD - ORD

1 stop26h 45mDelta

So 3/816:20ORD - BHD

1 stop22h 55mDelta

Deal found 12/6£3,566

Di 29/709:35BHD - ORD

1 stop13h 25mAmerican Airlines

Sa 9/816:55ORD - BHD

1 stop11h 15mAmerican Airlines

Deal found 12/6£3,598

Mi 30/707:00BHD - ORD

2 stops18h 00mAer Lingus

Mi 6/815:45ORD - BHD

2 stops16h 00mAer Lingus

Deal found 12/6£2,791

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.

Fly from

Fly to

Route

Depart

Return

Price

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mo 22/9

06:40-14:50

1 stop14h 10m

Chicago O'Hare Intl

Mo 29/9

21:15-17:30

1 stop14h 15m

£466

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mo 22/9

17:25-14:10

1 stop26h 45m

Chicago O'Hare Intl

Mo 29/9

17:45-16:55

2 stops17h 10m

£484

BelfastChicago

BHD - ORD

BHDORD

Belfast City

So 7/9

15:50-11:50

1 stop26h 00m

Chicago O'Hare Intl

So 14/9

17:45-13:05

1 stop13h 20m

£492

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Di 15/7

05:55-22:05

2 stops22h 10m

Chicago O'Hare Intl

Di 22/7

19:25-15:00

2 stops13h 35m

£642

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Do 14/8

17:25-18:05

2 stops30h 40m

Chicago O'Hare Intl

Do 21/8

16:20-16:55

1 stop18h 35m

£757

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mo 4/8

18:50-14:00

2 stops25h 10m

Chicago O'Hare Intl

Mo 11/8

15:45-12:50

2 stops15h 05m

£962

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Mo 28/7

06:30-14:10

1 stop13h 40m

Chicago O'Hare Intl

Mo 4/8

16:20-21:15

1 stop22h 55m

£3,566

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Di 29/7

06:35-14:40

1 stop14h 05m

Chicago O'Hare Intl

Fr 8/8

21:15-15:30

1 stop12h 15m

£3,598

Flights are sorted by cheapest return flights first.

Deals found on 10/6

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

Rainfall in O'Hare Intl by month

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.

Temperature in O'Hare Intl by month

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).

Reviews of airlines servicing O'Hare Intl

Delta

8.0

Very Good

7,950 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Delta

8.0

Very Good

7,950 reviews

Delta

8.0

Very Good

7,950 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

KLM

7.8

Good

1,358 reviews

Delta

8.0

Very Good

7,950 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Virgin Atlantic

7.4

Good

652 reviews

Delta

8.0

Very Good

7,950 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very Good

7,950 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Aer Lingus

7.1

Good

1,118 reviews

Delta

8.0

Very Good

7,950 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

Related info for your journey

What are the cheapest airlines flying 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 £466. Additional return tickets that might be worth considering are offered by KLM and Virgin Atlantic, with the lowest prices starting at £484 and £757, respectively.
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

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Top airline flying from Belfast to O'Hare Intl

Airline	Cheapest	Average	Flexibility	On-time
British Airways	Cheapest£478	Average£590	FlexibilityNo cancel fee	On-time70%	Search British Airways flights

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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?

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

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Cheap flights from Belfast to Chicago O'Hare Intl Airport from £466

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 22/9. 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

Round-trip from

Popular in

Cheapest in

Average price

Find 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 13 Juni 2025.

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 13 Juni 2025.

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.

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.

Cheapflights Insights

Everything you need to know about your flight from Belfast to Chicago O'Hare Intl Airport

Rainfall in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average rainfall totals by month.

Temperature in O'Hare Intl by month

Plan your trip to O'Hare Intl by taking into account the average temperature totals by month.

Reviews of airlines servicing O'Hare Intl

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.

What are the cheapest airlines flying from Belfast to Chicago O'Hare Intl Airport round-trip?

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?

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

Travelling to a place near Belfast?

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.

Top airline flying from Belfast to O'Hare Intl

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?

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

Can Cheapflights 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?

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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 13 Juni 2025.