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$333+ Cheap flights from Chicago (CHI) to Belfast

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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BHD
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap 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 September 11, 2025.

Round-trip from

$630
(British Airways)

One-way from

$333
(Kiwi.com)
From Chicago (CHI) to Belfast
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One-way flight from Chicago (CHI) to Belfast
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Find 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 September 11, 2025.

This British Airways deal was found by Cheapflights users on 9/8. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/35:10 pmORD - BHD
1 stop11h 05mBritish Airways
Sun 12/712:10 pmBHD - ORD
1 stop12h 35mBritish Airways
Deal found 9/8$630
This Mytrip deal was found by Cheapflights users on 9/11. 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 10/267:30 pmORD - BFS
2 stops18h 25mMultiple Airlines
Sun 11/27:10 amBFS - ORD
2 stops16h 10mMultiple Airlines
Deal found 9/11$634
This Delta deal was found by Cheapflights users on 9/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/32:05 pmORD - BHD
2 stops20h 50mDelta
Tue 10/76:30 amBHD - ORD
1 stop13h 40mDelta
Deal found 9/9$686
This Delta deal was found by Cheapflights users on 9/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/31:08 pmMDW - BHD
2 stops21h 47mDelta
Tue 10/75:25 pmBHD - MDW
2 stops31h 00mDelta
Deal found 9/9$696
This Mytrip deal was found by Cheapflights users on 9/9. 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 10/246:00 pmORD - BFS
3 stops23h 20mMultiple Airlines
Fri 10/319:05 pmBFS - ORD
3 stops47h 55mMultiple Airlines
Deal found 9/9$712
This Virgin Atlantic deal was found by Cheapflights users on 9/8. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/310:31 amORD - BHD
2 stops28h 29mVirgin Atlantic
Sun 12/75:20 pmBHD - ORD
1 stop27h 00mVirgin Atlantic
Deal found 9/8$728
This American Airlines deal was found by Cheapflights users on 9/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/178:40 pmORD - BHD
1 stop12h 55mAmerican Airlines
Wed 9/2410:00 amBHD - ORD
1 stop13h 00mAmerican Airlines
Deal found 9/9$754
This FlightHub deal was found by Cheapflights users on 9/9. 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.
Wed 9/1712:33 pmORD - BHD
2 stops21h 02mBritish Airways
Wed 9/246:15 pmBHD - ORD
2 stops27h 30mBritish Airways
Deal found 9/9$763
This Virgin Atlantic deal was found by Cheapflights users on 9/9. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/34:15 pmORD - BHD
1 stop18h 40mVirgin Atlantic
Tue 10/76:30 amBHD - ORD
1 stop13h 40mVirgin Atlantic
Deal found 9/9$777
This Virgin Atlantic deal was found by Cheapflights users on 9/10. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/171:08 pmMDW - BHD
2 stops26h 07mVirgin Atlantic
Tue 10/215:25 pmBHD - MDW
2 stops31h 00mVirgin Atlantic
Deal found 9/10$792
This deal was found by Cheapflights users on 9/9. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/316:10 pmORD - BHD
1 stop11h 20mBritish Airways
Mon 11/106:35 amBHD - ORD
1 stop13h 15mBritish Airways
Deal found 9/9$812
This Mytrip deal was found by Cheapflights users on 9/9. 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 9/273:45 pmORD - BFS
2 stops13h 15mMultiple Airlines
Fri 10/38:35 amBFS - ORD
2 stops16h 25mMultiple Airlines
Deal found 9/9$888

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 September 11, 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 - BHD

ORDBHD

Chicago O'Hare Intl

Wed 12/3

5:10 pm-10:15 am

1 stop11h 05m

Belfast City

Sun 12/7

12:10 pm-6:45 pm

1 stop12h 35m

$630

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Sun 10/26

7:30 pm-6:55 pm

2 stops18h 25m

Belfast Intl

Sun 11/2

7:10 am-5:20 pm

2 stops16h 10m

$634

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Fri 10/3

2:05 pm-4:55 pm

2 stops20h 50m

Belfast City

Tue 10/7

6:30 am-2:10 pm

1 stop13h 40m

$686

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Fri 10/3

1:08 pm-4:55 pm

2 stops21h 47m

Belfast City

Tue 10/7

5:25 pm-6:25 pm

2 stops31h 00m

$696

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Fri 10/24

6:00 pm-11:20 pm

3 stops23h 20m

Belfast Intl

Fri 10/31

9:05 pm-4:00 pm

3 stops47h 55m

$712

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 12/3

10:31 am-9:00 pm

2 stops28h 29m

Belfast City

Sun 12/7

5:20 pm-2:20 pm

1 stop27h 00m

$728

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Fri 10/3

4:15 pm-4:55 pm

1 stop18h 40m

Belfast City

Tue 10/7

6:30 am-2:10 pm

1 stop13h 40m

$777

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Fri 10/17

1:48 pm-9:15 pm

2 stops25h 27m

Belfast City

Tue 10/21

5:25 pm-6:25 pm

2 stops31h 00m

$792

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Fri 10/31

6:10 pm-10:30 am

1 stop11h 20m

Belfast City

Mon 11/10

6:35 am-1:50 pm

1 stop13h 15m

$812

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sat 9/27

1:59 pm-10:10 am

2 stops14h 11m

Belfast City

Fri 10/3

8:05 pm-5:23 pm

2 stops27h 18m

$838

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/11

Showing 1-10 of 20 results
1
2

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 September 11, 2025.

Unlike in the morning, when flights are generally more expensive, you can save up to 9% on flights from Chicago to Belfast by exploring options for tickets at noon.

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 September 11, 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
7,361 reviews

Crew

7.6

Boarding

6.9

Entertainment

6.4

Overall

6.7

Food

6.3

Comfort

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
7,361 reviews
British Airways
6.7
Okay
7,361 reviews

Crew

7.6

Boarding

6.9

Entertainment

6.4

Overall

6.7

Food

6.3

Comfort

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 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 11h 05m. Fly via British Airways, Delta, or Virgin Atlantic 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 Intl 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.

  • What is the cheapest month to book a flight from Chicago to Belfast?

    Currently, February is the cheapest month in which you can book a flight from Chicago to Belfast (average of $657). Flying from Chicago to Belfast 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

Browse thousands of different options on Cheapflights for your next trip

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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
Midway to Belfast City flights
St. Louis to Belfast Intl flights
St. Louis 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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$577Average$720FlexibilityNo cancel feeOn-time70%

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