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$433+ 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 8/20. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BHD
ago. 19 — ago. 261
mar. 8/19
mar. 8/26
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 agosto 14, 2025.

Round-trip from

$620
(Ovago)

One-way from

$433
(Air France)
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 agosto 14, 2025.

This Trip.com deal was found by Cheapflights users on 8/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/26:30 pmORD - BFS
2 stops19h 45mMultiple Airlines
lun. 12/81:30 pmBFS - ORD
2 stops33h 50mMultiple Airlines
Deal found 8/13$539
This Ovago deal was found by Cheapflights users on 8/13. 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.
mar. 12/26:45 pmORD - BHD
1 stop10h 45mBritish Airways
lun. 12/87:25 pmBHD - ORD
2 stops25h 05mBritish Airways
Deal found 8/13$620
This Ovago deal was found by Cheapflights users on 8/13. 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.
lun. 12/19:45 pmORD - BHD
1 stop10h 30mBritish Airways
mar. 12/98:45 amBHD - ORD
1 stop14h 15mBritish Airways
Deal found 8/13$626
This British Airways deal was found by Cheapflights users on 8/13. 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.
dom. 11/309:45 pmORD - BHD
1 stop14h 55mBritish Airways
mié. 12/106:35 amBHD - ORD
1 stop13h 15mBritish Airways
Deal found 8/13$630
This British Airways deal was found by Cheapflights users on 8/13. 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.
mié. 12/39:45 pmORD - BHD
1 stop12h 50mBritish Airways
lun. 12/85:45 pmBHD - ORD
1 stop26h 05mBritish Airways
Deal found 8/13$639
This Mytrip deal was found by Cheapflights users on 8/14. 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.
mié. 9/1711:13 amORD - BFS
3 stops25h 22mMultiple Airlines
mié. 9/245:20 pmBFS - ORD
2 stops25h 15mMultiple Airlines
Deal found 8/14$669
This British Airways deal was found by Cheapflights users on 8/13. 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.
sáb. 11/299:45 pmORD - BHD
1 stop10h 30mBritish Airways
lun. 12/87:25 pmBHD - ORD
1 stop24h 25mBritish Airways
Deal found 8/13$680
This American Airlines deal was found by Cheapflights users on 8/14. 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.
mié. 9/1710:35 pmORD - BHD
1 stop11h 00mAmerican Airlines
mié. 9/246:50 amBHD - ORD
2 stops14h 55mAmerican Airlines
Deal found 8/14$684
This FlightHub deal was found by Cheapflights users on 8/14. 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.
mié. 9/1710:35 pmORD - BHD
1 stop11h 00mBritish Airways
mar. 9/236:15 pmBHD - ORD
2 stops26h 00mBritish Airways
Deal found 8/14$689
This Ovago deal was found by Cheapflights users on 8/13. 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.
sáb. 8/168:42 pmORD - BHD
2 stops34h 23mBritish Airways
dom. 8/246:05 pmBHD - ORD
2 stops26h 10mBritish Airways
Deal found 8/13$696
This FlightHub deal was found by Cheapflights users on 8/13. 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.
mié. 8/1310:25 pmORD - BHD
2 stops28h 20mBritish Airways
dom. 8/248:05 pmBHD - ORD
2 stops28h 45mBritish Airways
Deal found 8/13$703
This FlightHub deal was found by Cheapflights users on 8/14. 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.
mié. 9/176:55 pmORD - BHD
2 stops14h 40mBritish Airways
jue. 9/256:35 amBHD - ORD
2 stops16h 54mBritish Airways
Deal found 8/14$706

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 agosto 14, 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

mar. 12/2

6:45 pm-11:30 am

1 stop10h 45m

Belfast City

lun. 12/8

7:25 pm-2:30 pm

2 stops25h 05m

$620

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

mar. 12/2

5:10 pm-10:30 am

1 stop11h 20m

Belfast City

mar. 12/9

8:45 am-3:25 pm

1 stop12h 40m

$626

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

lun. 12/1

9:45 pm-2:15 pm

1 stop10h 30m

Belfast City

mar. 12/9

8:45 am-5:00 pm

1 stop14h 15m

$626

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

dom. 11/30

9:45 pm-6:40 pm

1 stop14h 55m

Belfast City

mié. 12/10

6:35 am-1:50 pm

1 stop13h 15m

$630

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

dom. 11/30

9:45 pm-4:50 pm

1 stop13h 05m

Belfast City

jue. 12/11

5:45 pm-1:50 pm

1 stop26h 05m

$630

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

mar. 12/2

9:45 pm-2:50 pm

1 stop11h 05m

Belfast City

jue. 12/11

11:05 am-6:45 pm

1 stop13h 40m

$630

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

dom. 11/30

9:45 pm-6:40 pm

1 stop14h 55m

Belfast City

lun. 12/8

5:45 pm-1:50 pm

1 stop26h 05m

$630

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

mié. 12/3

9:45 pm-4:35 pm

1 stop12h 50m

Belfast City

mié. 12/10

11:25 am-6:45 pm

1 stop13h 20m

$630

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

mié. 12/3

9:45 pm-4:35 pm

1 stop12h 50m

Belfast City

mar. 12/9

7:25 pm-1:50 pm

1 stop24h 25m

$630

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

lun. 12/1

5:10 pm-10:40 am

1 stop11h 30m

Belfast City

lun. 12/8

7:25 pm-1:50 pm

1 stop24h 25m

$630

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 35 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 agosto 14, 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 agosto 14, 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
7,266 reviews

Crew

7.6

Comfort

6.7

Boarding

6.9

Overall

6.7

Entertainment

6.4

Food

6.3

Reviews

1 / 20
4.0
Okay

Anonymous,May 2025

LAX - LHR

Entertainment system did not work. Seems like Wi-Fi should have been comped at hat point. Boarding at Marco Polo in Venice was terrible. Insisted on gate checking our bag but not others! Connection was confused and flight was very late.
British Airways
6.7
Okay
7,266 reviews
British Airways
6.7
Okay
7,266 reviews

Crew

7.6

Comfort

6.7

Boarding

6.9

Overall

6.7

Entertainment

6.4

Food

6.3

Reviews

1 / 20
4.0
Okay

Anonymous,May 2025

LAX - LHR

Entertainment system did not work. Seems like Wi-Fi should have been comped at hat point. Boarding at Marco Polo in Venice was terrible. Insisted on gate checking our bag but not others! Connection was confused and flight was very late.

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.

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

    British Airways, at $622, was found to be the cheapest airline from Chicago to Belfast..

  • What are the cheapest airlines to fly from Chicago to Belfast one-way?

    The cheapest airline one-way is Air France, with whom users have recently found tickets for as low as $433. However, be on the lookout for offers from Delta and KLM, as they are both options that can get you from Chicago to Belfast for a low price.

  • 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.

  • 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

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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 agosto 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$622Average$720FlexibilityNo cancel feeOn-time70%

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