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Belfast Intl

$289+ 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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BFS
Jul 6 — Jul 131
Sun 7/6
Sun 7/13
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 July 1, 2025.

Round-trip from

$725
(Mytrip)

Popular in

July

Cheapest in

February

Average price

$1,465
From Chicago O'Hare Intl to Belfast Intl
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Highest demand for flights based on searches. 23% potential increase in price ($262 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($64 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 1, 2025.

This Mytrip deal was found by Cheapflights users on 6/30. 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.
Thu 8/143:45 pmORD - BFS
2 stops18h 55mMultiple Airlines
Thu 8/217:10 amBFS - ORD
2 stops17h 50mMultiple Airlines
Deal found 6/30$725

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 July 1, 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

Thu 8/14

3:45 pm-4:40 pm

2 stops18h 55m

Belfast Intl

Thu 8/21

7:10 am-7:00 pm

2 stops17h 50m

$725

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Thu 9/11

10:15 pm-8:00 am

3 stops51h 45m

$289

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

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.

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.

  • 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.

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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 July 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$622Average$720FlexibilityNo cancel feeOn-time70%

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