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Belfast Intl

$539+ Cheap flights from O'Hare Intl (ORD) to Belfast Intl (BFS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BFS
ago. 19 — ago. 261
mar. 8/19
mar. 8/26
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 agosto 14, 2025.

Round-trip from

$669
(Mytrip)

Popular in

June

Cheapest in

February

Average price

$778
From Chicago O'Hare Intl to Belfast Intl
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Highest demand for flights based on searches. 10% potential increase in price ($85 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in August 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 agosto 14, 2025.

This Trip.com deal was found by Cheapflights users on 8/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/26:30 pmORD - BFS
2 stops19h 45mMultiple Airlines
lun. 12/81:30 pmBFS - ORD
2 stops33h 50mMultiple Airlines
Deal found 8/13$539
This Mytrip deal was found by Cheapflights users on 8/14. 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.
mié. 9/1711:13 amORD - BFS
3 stops25h 22mMultiple Airlines
mié. 9/245:20 pmBFS - ORD
2 stops25h 15mMultiple Airlines
Deal found 8/14$669
This Mytrip deal was found by Cheapflights users on 8/14. 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.
dom. 9/287:25 pmORD - BFS
2 stops20h 55mMultiple Airlines
dom. 10/57:15 amBFS - ORD
2 stops20h 00mMultiple Airlines
Deal found 8/14$794
This Mytrip deal was found by Cheapflights users on 8/13. 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.
mié. 9/1010:15 pmORD - BFS
2 stops18h 00mMultiple Airlines
mié. 9/176:10 amBFS - ORD
3 stops34h 45mMultiple Airlines
Deal found 8/13$795
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/189:15 pmORD - BFS
1 stop15h 00mMultiple Airlines
mié. 9/245:20 pmBFS - ORD
2 stops25h 15mMultiple Airlines
Deal found 8/14$919
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 9/1711:13 amORD - BFS
2 stops21h 32mMultiple Airlines
jue. 9/256:10 amBFS - ORD
1 stop13h 45mMultiple Airlines
Deal found 8/14$1,017

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 agosto 14, 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

mié. 9/17

11:13 am-6:35 pm

3 stops25h 22m

Belfast Intl

mié. 9/24

5:20 pm-12:35 pm

2 stops25h 15m

$669

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

dom. 9/28

7:25 pm-10:20 pm

2 stops20h 55m

Belfast Intl

dom. 10/5

7:15 am-9:15 pm

2 stops20h 00m

$794

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

mié. 9/10

10:15 pm-10:15 pm

2 stops18h 00m

Belfast Intl

mié. 9/17

6:10 am-10:55 am

3 stops34h 45m

$795

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

jue. 9/18

9:15 pm-6:15 pm

1 stop15h 00m

Belfast Intl

mié. 9/24

5:20 pm-12:35 pm

2 stops25h 15m

$919

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

mié. 9/17

11:13 am-2:45 pm

2 stops21h 32m

Belfast Intl

jue. 9/25

6:10 am-1:55 pm

1 stop13h 45m

$1,017

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

mié. 9/17

11:13 am-2:45 pm

2 stops21h 32m

Belfast Intl

mar. 9/23

6:15 am-1:50 pm

1 stop13h 35m

$1,019

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

mié. 8/20

10:27 am-8:35 pm

2 stops28h 08m

$1,084

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

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.

Cheapflights Insights

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

How much does it cost to fly round-trip from Chicago O'Hare Intl Airport to Belfast Intl Airport?

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 agosto 14, 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
7,266 reviews

Crew

7.6

Entertainment

6.4

Food

6.3

Boarding

6.9

Comfort

6.7

Overall

6.7

Reviews

1 / 20
4.0
Okay

Anonymous,May 2025

LAX - LHR

Entertainment system did not work. Seems like Wi-Fi should have been comped at hat point. Boarding at Marco Polo in Venice was terrible. Insisted on gate checking our bag but not others! Connection was confused and flight was very late.
British Airways
6.7
Okay
7,266 reviews
British Airways
6.7
Okay
7,266 reviews

Crew

7.6

Entertainment

6.4

Food

6.3

Boarding

6.9

Comfort

6.7

Overall

6.7

Reviews

1 / 20
4.0
Okay

Anonymous,May 2025

LAX - LHR

Entertainment system did not work. Seems like Wi-Fi should have been comped at hat point. Boarding at Marco Polo in Venice was terrible. Insisted on gate checking our bag but not others! Connection was confused and flight was very late.

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 $622. British Airways is priced at 18% 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 agosto 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$622Average$720FlexibilityNo cancel feeOn-time70%

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