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

Flying on KLM is currently your cheapest option to Chicago O'Hare Intl Airport, with prices starting at £520. Additional return tickets that might be worth considering are offered by Delta and British Airways, with the lowest prices starting at £523 and £601, respectively.

What are the cheapest airlines to fly from Belfast to Chicago O'Hare Intl Airport one-way?

To fly one-way, consider booking your trip with Aer Lingus, which is currently one of the cheapest options available, starting at £609. British Airways flights start at £782 while deals on Delta start at £1,273 one-way.

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 March. Prices are generally better when you fly from Belfast to Chicago O'Hare Intl Airport in September, with the cheapest ticket starting at £548.

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.

£520+ Flights from Belfast to Chicago O'Hare Intl Airport

Cheap flight deals from Belfast to O'Hare Intl

Round-trip from	£520
Popular in	March
Cheapest in	September
Average price	£749

KLM
7/5-11/5
3 total stops
29h 40m total
Belfast to Chicago

Search Deals

Highest demand for flights based on searches. 26% potential increase in price (£194 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 8% potential price decrease (£41 potential savings vs. average return price).

Search Deals

Average for round-trip flights in April 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 24 April 2025.

Wed 7/506:30BHD - ORD

1 stop14h 10mKLM

Sun 11/519:25ORD - BHD

2 stops15h 30mKLM

Deal found 24/4£520

Wed 7/506:30BHD - ORD

1 stop14h 10mDelta

Sun 11/513:45ORD - BHD

2 stops21h 10mDelta

Deal found 23/4£523

Wed 7/506:50BHD - ORD

1 stop13h 50mBritish Airways

Sun 11/522:25ORD - BHD

1 stop13h 20mBritish Airways

Deal found 23/4£601

Wed 7/510:00BHD - ORD

1 stop14h 15mAmerican Airlines

Sun 11/520:30ORD - BHD

1 stop15h 15mAmerican Airlines

Deal found 23/4£616

Sat 7/609:35BHD - ORD

1 stop14h 40mIberia

Sat 14/617:10ORD - BHD

2 stops15h 55mIberia

Deal found 23/4£639

Sat 7/607:00BHD - ORD

2 stops22h 29mMultiple Airlines

Sat 14/610:50ORD - BHD

3 stops20h 55mMultiple Airlines

Deal found 23/4£672

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 24 April 2025.

Wed 7/506:30BHD - ORD

1 stop14h 10mKLM

Sun 11/519:25ORD - BHD

2 stops15h 30mKLM

Deal found 24/4£520

Wed 7/506:30BHD - ORD

1 stop14h 10mDelta

Sun 11/513:45ORD - BHD

2 stops21h 10mDelta

Deal found 23/4£523

Wed 7/506:50BHD - ORD

1 stop13h 50mBritish Airways

Sun 11/522:25ORD - BHD

1 stop13h 20mBritish Airways

Deal found 23/4£601

Wed 7/510:00BHD - ORD

1 stop14h 15mAmerican Airlines

Sun 11/520:30ORD - BHD

1 stop15h 15mAmerican Airlines

Deal found 23/4£616

Sat 7/609:35BHD - ORD

1 stop14h 40mIberia

Sat 14/617:10ORD - BHD

2 stops15h 55mIberia

Deal found 23/4£639

Sat 7/607:00BHD - ORD

2 stops22h 29mMultiple Airlines

Sat 14/610:50ORD - BHD

3 stops20h 55mMultiple Airlines

Deal found 23/4£672

Last-minute flights from Belfast to O'Hare Intl
Discover last-minute flight deals from Belfast to O'Hare Intl. Data last updated 24 April 2025 and is based on user searches.

Wed 7/506:30BHD - ORD

1 stop14h 10mKLM

Sun 11/519:25ORD - BHD

2 stops15h 30mKLM

Deal found 24/4£520

Wed 7/506:30BHD - ORD

1 stop14h 10mDelta

Sun 11/513:45ORD - BHD

2 stops21h 10mDelta

Deal found 23/4£523

Wed 7/506:50BHD - ORD

1 stop13h 50mBritish Airways

Sun 11/522:25ORD - BHD

1 stop13h 20mBritish Airways

Deal found 23/4£601

Wed 7/510:00BHD - ORD

1 stop14h 15mAmerican Airlines

Sun 11/520:30ORD - BHD

1 stop15h 15mAmerican Airlines

Deal found 23/4£616

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 24 April 2025.

Fri 16/510:20BHD - ORD

2 stops14h 40mAer Lingus

Deal found 24/4£609

Thu 9/1006:35BHD - ORD

2 stops18h 25mMultiple Airlines

Deal found 23/4£655

Thu 9/1012:40BHD - ORD

1 stop11h 35mBritish Airways

Deal found 23/4£782

Fri 16/506:30BHD - ORD

1 stop13h 40mDelta

Deal found 24/4£1,273

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

Wed 7/5

06:30-14:40

1 stop14h 10m

Chicago O'Hare Intl

Sun 11/5

19:25-16:55

2 stops15h 30m

£520

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Wed 7/5

06:30-22:14

2 stops21h 44m

Chicago O'Hare Intl

Sun 11/5

19:25-21:15

2 stops19h 50m

£527

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Wed 7/5

06:50-14:40

1 stop13h 50m

Chicago O'Hare Intl

Sun 11/5

22:25-17:45

1 stop13h 20m

£601

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Wed 7/5

10:00-18:15

1 stop14h 15m

Chicago O'Hare Intl

Sun 11/5

20:30-17:45

1 stop15h 15m

£616

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Sat 7/6

09:35-18:15

1 stop14h 40m

Chicago O'Hare Intl

Sat 14/6

17:10-15:05

2 stops15h 55m

£639

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Sat 7/6

07:00-23:29

2 stops22h 29m

Chicago O'Hare Intl

Sat 14/6

10:50-13:45

3 stops20h 55m

£672

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Fri 16/5

10:20-19:00

2 stops14h 40m

£609

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 9/10

06:35-19:00

2 stops18h 25m

£655

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Thu 9/10

12:40-18:15

1 stop11h 35m

£782

BelfastChicago

BHD - ORD

BHDORD

Belfast City

Fri 16/5

06:30-14:10

1 stop13h 40m

£1,273

Flights are sorted by cheapest return flights first.

Deals found on 24/4

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

7,920 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta

8.0

Very Good

7,920 reviews

Delta

8.0

Very Good

7,920 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM

7.8

Good

1,333 reviews

Delta

8.0

Very Good

7,920 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines

7.2

Good

10,000 reviews

Delta

8.0

Very Good

7,920 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Aer Lingus

7.0

Good

1,068 reviews

Delta

8.0

Very Good

7,920 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Iberia

7.0

Good

2,684 reviews

Delta

8.0

Very Good

7,920 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

What are the cheapest airlines flying from Belfast to Chicago O'Hare Intl Airport round-trip?
Flying on KLM is currently your cheapest option to Chicago O'Hare Intl Airport, with prices starting at £520. Additional return tickets that might be worth considering are offered by Delta and British Airways, with the lowest prices starting at £523 and £601, respectively.
What are the cheapest airlines to fly from Belfast to Chicago O'Hare Intl Airport one-way?
To fly one-way, consider booking your trip with Aer Lingus, which is currently one of the cheapest options available, starting at £609. British Airways flights start at £782 while deals on Delta start at £1,273 one-way.
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£489	Average£595	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?

Yes! Cheapflights helps users easily 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 £520

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/5. 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 24 April 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 24 April 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?

What are the cheapest airlines to fly from Belfast to Chicago O'Hare Intl Airport one-way?

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

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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 24 April 2025.