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$599+ Cheap flights from Chicago (CHI) to Belfast

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 1/19. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BHD
Jan 5 — Jan 121
Mon 1/5
Mon 1/12
1 adult, Economy
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Cheap flight deals from Chicago to Belfast

Cheapest flights from Chicago to Belfast
Explore the most affordable flight options available from Chicago to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 6, 2025.

This Ovago deal was found by Cheapflights users on 12/5. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/303:50 pmORD - BHD
2 stops14h 25mAer Lingus
Mon 1/56:50 pmBHD - ORD
2 stops30h 25mAer Lingus
Deal found 12/5$1,109
This Ovago deal was found by Cheapflights users on 12/5. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/63:50 pmORD - BHD
2 stops15h 00mAer Lingus
Tue 12/96:40 amBHD - ORD
2 stops17h 15mAer Lingus
Deal found 12/5$1,123
This Ovago deal was found by Cheapflights users on 12/5. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:30 pmORD - BHD
1 stop14h 20mMultiple Airlines
Mon 1/57:25 pmBHD - ORD
2 stops29h 50mMultiple Airlines
Deal found 12/5$1,141
This FlightHub deal was found by Cheapflights users on 12/5. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/57:40 pmORD - BHD
2 stops30h 35mAer Lingus
Tue 12/92:25 pmBHD - ORD
2 stops29h 35mAer Lingus
Deal found 12/5$1,231
This KLM deal was found by Cheapflights users on 12/5. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/55:59 pmORD - BHD
2 stops21h 01mKLM
Tue 12/95:20 pmBHD - ORD
1 stop27h 00mKLM
Deal found 12/5$1,471
This Ovago deal was found by Cheapflights users on 12/4. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/308:40 pmORD - BHD
1 stop31h 35mBritish Airways
Mon 1/57:25 pmBHD - ORD
1 stop26h 00mBritish Airways
Deal found 12/4$1,474
This Mytrip deal was found by Cheapflights users on 12/5. 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 12/66:50 pmORD - BHD
2 stops20h 05mMultiple Airlines
Tue 12/99:50 amBHD - ORD
3 stops35h 10mMultiple Airlines
Deal found 12/5$1,558
This Mytrip deal was found by Cheapflights users on 12/5. 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 12/510:35 pmORD - BHD
2 stops16h 15mMultiple Airlines
Tue 12/99:50 amBHD - ORD
3 stops35h 10mMultiple Airlines
Deal found 12/5$1,593
This Air France deal was found by Cheapflights users on 12/5. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/64:29 pmMDW - BHD
2 stops18h 21mMultiple Airlines
Tue 12/96:30 amBHD - MDW
2 stops17h 30mMultiple Airlines
Deal found 12/5$2,033

Find flight deals from Chicago to Belfast

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Belfast (BF1). 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 December 6, 2025.

Round-trip from

$599
(Mytrip)
From Chicago (CHI) to Belfast
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chicago to Belfast 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 December 6, 2025.
Use the filters below to find and compare flights from Chicago to Belfast that are best for you.

Fly from

Chicago

Fly to

Belfast

Route

Depart

Return

Price

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Mon 1/19

6:30 pm-8:15 pm

2 stops19h 45m

Belfast Intl

Mon 1/26

7:50 am-5:20 pm

2 stops15h 30m

$599

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Mon 1/26

12:44 pm-8:10 pm

2 stops25h 26m

Belfast Intl

Fri 1/30

8:20 pm-5:20 pm

3 stops27h 00m

$612

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 2/11

9:45 pm-4:35 pm

1 stop12h 50m

Belfast City

Sun 2/15

6:30 am-6:45 pm

1 stop18h 15m

$622

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 2/25

5:10 pm-10:15 am

1 stop11h 05m

Belfast City

Sun 3/1

6:30 am-1:50 pm

1 stop13h 20m

$622

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 1/26

7:20 am-1:35 pm

3 stops24h 15m

Belfast City

Fri 1/30

5:20 pm-5:20 pm

3 stops30h 00m

$641

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 5/11

7:05 pm-12:55 pm

1 stop11h 50m

Belfast City

Wed 5/27

10:00 am-3:55 pm

1 stop11h 55m

$708

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 5/10

5:00 pm-1:05 pm

1 stop14h 05m

Belfast City

Thu 5/28

9:35 am-6:15 pm

1 stop14h 40m

$710

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Tue 5/12

7:05 pm-3:20 pm

1 stop14h 15m

Belfast City

Thu 5/28

9:35 am-6:15 pm

1 stop14h 40m

$710

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 5/10

9:15 pm-2:40 pm

1 stop11h 25m

Belfast City

Mon 5/25

7:30 pm-3:55 pm

1 stop26h 25m

$710

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 5/11

9:15 pm-5:30 pm

1 stop14h 15m

Belfast City

Thu 5/28

6:35 am-1:50 pm

1 stop13h 15m

$710

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/5

Showing 1-10 of 21 results
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Best time to book a flight from Chicago to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast from Chicago 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 to Belfast

What is the cheapest time of day to fly from CHI to BFS?

Find hourly flight availability from Chicago to Belfast. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 6, 2025.

Unlike in the evening, when flights are generally more expensive, you can save up to 36% on flights from Chicago to Belfast by exploring options for tickets in the morning.

Reviews of airlines servicing Belfast

Get insights into the airlines that provide service to Belfast. 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. Reviews last updated December 6, 2025.
Peruse reviews from past customers who have flown with British Airways from Chicago to Belfast to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,562 reviews

Food

6.4

Comfort

6.7

Boarding

6.9

Overall

6.7

Entertainment

6.4

Crew

7.6

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
7,562 reviews
British Airways
6.7
Okay
7,562 reviews

Food

6.4

Comfort

6.7

Boarding

6.9

Overall

6.7

Entertainment

6.4

Crew

7.6

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 Chicago to Belfast. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Chicago to Belfast?

    There are many flights that can get you from Chicago to Belfast in 12h 50m. Fly via British Airways or KLM to get the fastest option. There are 3644 mi between Chicago and Belfast. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Chicago to Belfast round-trip?

    British Airways, at $577, was found to be the cheapest airline from Chicago to Belfast..

  • What are the most popular routes from Chicago to Belfast?

    Most travelers choose Chicago O'Hare Intl - Belfast Intl, Chicago O'Hare Intl - Belfast City or Chicago Midway - Belfast City when deciding on the best route from Chicago to Belfast.

  • Can I find deals for flights from Chicago to Belfast that include hotel bookings?

    Yes. In addition to deals on Chicago to Belfast flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Chicago to Belfast?

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

  • Can I find deals for business class flights from Chicago to Belfast?

    Yes. Cheapflights offers flight deals from Chicago to Belfast 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 Chicago to Belfast

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

Top airline flying from Chicago to Belfast

Discover the top airline that operate flights from Chicago to Belfast. 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 December 6, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$577Average$706FlexibilityNo cancel feeOn-time70%

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