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Belfast Intl

$457+ Cheap flights from O'Hare Intl (ORD) to Belfast Intl (BFS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/24. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BFS
Oct 19 — Oct 261
Sun 10/19
Sun 10/26
1 adult, Economy
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Cheap flight deals from O'Hare Intl to Belfast Intl

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) to Belfast Intl (BFS). 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 September 19, 2025.

Round-trip from

$717
(Mytrip)

One-way from

$457
(Kiwi.com)

Popular in

June

Cheapest in

May

Average price

$673
From Chicago O'Hare Intl to Belfast Intl
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One-way flight from Chicago O'Hare Intl to Belfast Intl
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Highest demand for flights based on searches. 6% potential increase in price ($50 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from O'Hare Intl to Belfast Intl

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

This Mytrip deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/26:50 pmORD - BFS
2 stops18h 05mMultiple Airlines
Sun 11/97:10 amBFS - ORD
2 stops17h 15mMultiple Airlines
Deal found 9/18$717
This Mytrip deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/319:15 pmORD - BFS
3 stops20h 30mMultiple Airlines
Fri 11/79:30 pmBFS - ORD
3 stops47h 15mMultiple Airlines
Deal found 9/16$733
This Mytrip deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/18:20 pmORD - BFS
2 stops21h 20mMultiple Airlines
Sat 11/86:00 amBFS - ORD
3 stops38h 45mMultiple Airlines
Deal found 9/17$795
This Mytrip deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/48:40 amORD - BFS
3 stops20h 20mMultiple Airlines
Sat 10/119:40 amBFS - ORD
3 stops31h 10mMultiple Airlines
Deal found 9/17$892

Cheapflights Fare Finder

 
Customize your flight search to find flights from O'Hare Intl to Belfast 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 2,558,603 searches. Data last updated September 19, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Belfast Intl Airport that are best for you.

Fly from

O'Hare Intl

Fly to

Belfast Intl

Route

Depart

Return

Price

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Sun 11/2

6:50 pm-6:55 pm

2 stops18h 05m

Belfast Intl

Sun 11/9

7:10 am-6:25 pm

2 stops17h 15m

$717

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Fri 10/31

9:15 pm-10:45 pm

3 stops20h 30m

Belfast Intl

Fri 11/7

9:30 pm-2:45 pm

3 stops47h 15m

$733

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Sat 11/1

8:20 pm-10:40 pm

2 stops21h 20m

Belfast Intl

Sat 11/8

6:00 am-2:45 pm

3 stops38h 45m

$795

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Sat 10/4

8:40 am-11:00 am

3 stops20h 20m

Belfast Intl

Sat 10/11

9:40 am-10:50 am

3 stops31h 10m

$892

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Wed 12/24

7:20 pm-11:25 pm

3 stops46h 05m

$457

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Tue 12/23

6:30 pm-2:05 pm

2 stops13h 35m

$521

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Thu 12/18

6:30 pm-8:25 pm

2 stops19h 55m

$572

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Fri 12/19

6:30 pm-6:45 am

2 stops30h 15m

$591

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Mon 12/22

10:18 am-8:10 pm

2 stops27h 52m

$671

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Sun 12/21

10:18 am-5:00 pm

3 stops24h 42m

$717

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

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

Have a flexible travel schedule? Discover the best time to fly to Belfast Intl from O'Hare Intl with our price prediction graph.
Estimated round-trip 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.

Reviews of airlines servicing Belfast Intl

Get insights into the airlines that provide service to Belfast 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 Belfast Intl. Reviews last updated September 19, 2025.
Read through reviews of airlines operating flights from Chicago O'Hare Intl Airport to Belfast Intl Airport, such as British Airways. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,373 reviews

Comfort

6.7

Boarding

6.9

Overall

6.7

Crew

7.6

Entertainment

6.4

Food

6.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

IAD - LHR

The plane had to load and unload passengers not through a jet way but out on the tarmac at Heathrow. The steps were steep. We weren't expecting to have to carry our luggage up and down stairs.
British Airways
6.7
Okay
7,373 reviews
British Airways
6.7
Okay
7,373 reviews

Comfort

6.7

Boarding

6.9

Overall

6.7

Crew

7.6

Entertainment

6.4

Food

6.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

IAD - LHR

The plane had to load and unload passengers not through a jet way but out on the tarmac at Heathrow. The steps were steep. We weren't expecting to have to carry our luggage up and down stairs.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl to Belfast Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

    Cheapflights users have booked flights from Chicago O'Hare Intl Airport to Belfast Intl Airport round-trip from $577. British Airways is priced at 23% lower than the current average price of a flight leaving 3 months from now.

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

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

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

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from O'Hare Intl to Belfast Intl.

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

    Yes. Cheapflights offers flight deals from O'Hare Intl to Belfast 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 Chicago O'Hare Intl Airport to Belfast Intl Airport?

    Currently, February is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Belfast Intl Airport (average of $657). Flying from Chicago O'Hare Intl Airport to Belfast Intl Airport in June is currently the most expensive (average of $1,189). 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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Alternative routes for O'Hare Intl to Belfast Intl

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

Top airline flying from O'Hare Intl to Belfast Intl

Discover the top airline that operate flights from O'Hare Intl to Belfast 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 2,558,603 searches. Data last updated September 19, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$577Average$720FlexibilityNo cancel feeOn-time70%

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