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O'Hare Intl

$405+ Cheap flights from Belfast Intl (BFS) to O'Hare Intl (ORD)

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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
BFS — ORD
Jul 30 — Aug 61
Wed 7/30
Wed 8/6
1 adult, Economy
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Cheap flight deals from Belfast Intl to O'Hare Intl

Discover tips and strategies to find the most affordable flight options for your journey from Belfast Intl (BFS) to O'Hare Intl (ORD). 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 25, 2025.

Round-trip from

$660
(Kiwi.com)

One-way from

$405
(Kiwi.com)

Popular in

August

Cheapest in

September

Average price

$840
From Belfast Intl to Chicago O'Hare Intl
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One-way flight from Belfast Intl to Chicago O'Hare Intl
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High demand for flights, 0% potential price rise
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Cheapest flight prices on average. 3% potential price decrease ($32 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 Belfast Intl to O'Hare Intl

Cheapest flights from Belfast Intl to O'Hare Intl
Explore the most affordable flight options available from Belfast Intl to O'Hare Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 25, 2025.

This Kiwi.com deal was found by Cheapflights users on 7/22. 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.
Mon 9/89:55 pmBFS - ORD
2 stops48h 17mMultiple Airlines
Mon 9/159:15 pmORD - BFS
1 stop15h 30mMultiple Airlines
Deal found 7/22$660

Cheapflights Fare Finder

 
Customize your flight search to find flights from Belfast Intl to O'Hare 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 25, 2025.
Use the filters below to find and compare flights from Belfast Intl Airport to Chicago O'Hare Intl Airport that are best for you.

Fly from

Belfast Intl

Fly to

O'Hare Intl

Route

Depart

Return

Price

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Mon 9/8

9:55 pm-4:12 pm

2 stops48h 17m

Chicago O'Hare Intl

Mon 9/15

9:15 pm-6:45 pm

1 stop15h 30m

$660

BelfastChicago

BFS - ORD

BFSORD

Belfast Intl

Fri 9/5

4:40 pm-11:10 am

3 stops48h 30m

$405

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/22

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

Have a flexible travel schedule? Discover the best time to fly to O'Hare Intl from Belfast 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 Belfast Intl 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.

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Belfast Intl Airport to Chicago O'Hare Intl Airport (average of $245). Flying from Belfast Intl Airport to Chicago O'Hare Intl Airport in March is currently the most expensive (average of $321). 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

Traveling to a place near Chicago O'Hare Intl Airport?

Book flights to Chicago O'Hare Intl Airport if you plan to visit one of these locations
Schaumburg
Rosemont
Beloit
Hoffman Estates
Skokie
Naperville
Arlington Heights
Des Plaines
Elgin
Orland Park
Elk Grove Village
Racine
Rockford
Tinley Park
Merrillville
Evanston
Lake Geneva
Gurnee
Joliet
Waukegan

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Alternative routes for Belfast Intl to O'Hare Intl

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