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Belfast Intl

$322+ 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 3/25. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BFS
Dec 21 — Dec 281
Sun 12/21
Sun 12/28
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 November 21, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$636
(Mytrip)

One-way from

$322
(Kiwi.com)

Popular in

June

Cheapest in

May
Provider with most accurate pricing for Chicago O'Hare Intl-Belfast Intl flight deals.
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Provider most trusted by Cheapflights users for Chicago O'Hare Intl-Belfast Intl flights.
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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. 9% potential increase in price ($78 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($26 potential savings vs. average RT price).
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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 November 21, 2025.

This Mytrip deal was found by Cheapflights users on 11/20. 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 12/147:20 amORD - BFS
2 stops24h 35mMultiple Airlines
Sun 1/1110:45 pmBFS - ORD
3 stops24h 35mMultiple Airlines
Deal found 11/20$897
This Mytrip deal was found by Cheapflights users on 11/20. 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 11/284:20 pmORD - BFS
2 stops20h 25mMultiple Airlines
Sun 12/149:25 amBFS - ORD
3 stops31h 43mMultiple Airlines
Deal found 11/20$1,117
This Mytrip deal was found by Cheapflights users on 11/21. 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 11/276:30 pmORD - BFS
2 stops19h 55mMultiple Airlines
Sun 11/3011:05 pmBFS - ORD
3 stops27h 05mMultiple Airlines
Deal found 11/21$1,295
This Mytrip deal was found by Cheapflights users on 11/20. 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 11/214:20 pmORD - BFS
3 stops24h 15mMultiple Airlines
Sun 11/231:00 pmBFS - ORD
2 stops35h 25mMultiple Airlines
Deal found 11/20$1,491
This Mytrip deal was found by Cheapflights users on 11/19. 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 12/208:00 amORD - BFS
3 stops20h 55mMultiple Airlines
Mon 1/57:50 amBFS - ORD
3 stops36h 56mMultiple Airlines
Deal found 11/19$1,620

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 November 21, 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 2/22

9:00 pm-6:55 pm

2 stops15h 55m

Belfast Intl

Sat 2/28

12:45 pm-2:45 pm

3 stops32h 00m

$695

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Sun 1/11

4:38 pm-8:10 pm

3 stops21h 32m

Belfast Intl

Tue 1/27

6:30 am-3:00 pm

3 stops38h 30m

$696

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Thu 3/12

10:45 pm-8:25 pm

2 stops16h 40m

Belfast Intl

Mon 3/30

7:05 am-1:50 pm

2 stops36h 45m

$765

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Sun 1/4

7:40 pm-6:55 pm

2 stops17h 15m

Belfast Intl

Sun 1/11

9:25 am-11:22 am

3 stops31h 57m

$868

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Sun 3/22

4:50 pm-6:55 pm

2 stops21h 05m

Belfast Intl

Mon 3/30

6:40 am-7:50 pm

3 stops43h 10m

$890

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Sun 12/14

7:20 am-1:55 pm

2 stops24h 35m

Belfast Intl

Sun 1/11

10:45 pm-5:20 pm

3 stops24h 35m

$897

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Sat 4/18

7:25 pm-8:40 pm

2 stops19h 15m

Belfast Intl

Wed 4/22

8:10 pm-5:50 pm

3 stops27h 40m

$935

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Wed 3/25

7:05 am-8:30 am

3 stops44h 25m

$322

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Mon 12/15

2:26 pm-7:55 am

2 stops35h 29m

$358

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Compare providers for flights from O'Hare Intl to Belfast Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from O'Hare Intl to Belfast Intl in November.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Chicago O'Hare Intl Airport-Belfast Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Chicago O'Hare Intl Airport-Belfast Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-Belfast Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-Belfast Intl Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago O'Hare Intl Airport-Belfast Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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 November 21, 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
7,533 reviews

Entertainment

6.4

Comfort

6.7

Food

6.3

Boarding

6.9

Crew

7.6

Overall

6.7

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
7,533 reviews
British Airways
6.7
Okay
7,533 reviews

Entertainment

6.4

Comfort

6.7

Food

6.3

Boarding

6.9

Crew

7.6

Overall

6.7

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 20% 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.

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 November 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$577Average$691FlexibilityNo cancel feeOn-time70%

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