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Belfast Intl

$322+ Cheap flights from Chicago (CHI) 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 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BFS
oct. 17 — oct. 241
vie. 10/17
vie. 10/24
1 adult, Economy
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Cheap flight deals from Chicago to Belfast Intl

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) 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 septiembre 17, 2025.

Round-trip from

$726
(Mytrip)

One-way from

$322
(Kiwi.com)
From Chicago (CHI) to Belfast Intl
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One-way flight from Chicago (CHI) to Belfast Intl
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Find flight deals from Chicago to Belfast Intl

Cheapest flights from Chicago to Belfast Intl
Explore the most affordable flight options available from Chicago to Belfast Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on septiembre 17, 2025.

This Mytrip deal was found by Cheapflights users on 9/14. 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.
vie. 10/319:15 pmORD - BFS
3 stops20h 30mMultiple Airlines
lun. 11/1010:20 pmBFS - ORD
3 stops46h 40mMultiple Airlines
Deal found 9/14$726
This Mytrip deal was found by Cheapflights users on 9/16. 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.
vie. 10/319:15 pmORD - BFS
3 stops20h 30mMultiple Airlines
vie. 11/79:30 pmBFS - ORD
3 stops47h 15mMultiple Airlines
Deal found 9/16$733
This Mytrip deal was found by Cheapflights users on 9/15. 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.
lun. 9/296:30 amORD - BFS
2 stops31h 55mMultiple Airlines
jue. 10/24:25 pmBFS - ORD
3 stops30h 05mMultiple Airlines
Deal found 9/15$760
This Mytrip deal was found by Cheapflights users on 9/15. 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.
sáb. 9/278:40 amORD - BFS
3 stops26h 30mMultiple Airlines
jue. 10/24:25 pmBFS - ORD
3 stops30h 05mMultiple Airlines
Deal found 9/15$784
This Trip.com deal was found by Cheapflights users on 9/15. 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.
vie. 9/267:25 pmORD - BFS
2 stops20h 55mMultiple Airlines
mié. 10/19:05 pmBFS - ORD
2 stops27h 10mMultiple Airlines
Deal found 9/15$802
This Mytrip deal was found by Cheapflights users on 9/15. 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.
dom. 9/286:30 amORD - BFS
2 stops31h 50mMultiple Airlines
jue. 10/24:25 pmBFS - ORD
3 stops30h 05mMultiple Airlines
Deal found 9/15$827
This Mytrip deal was found by Cheapflights users on 9/15. 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.
dom. 9/287:25 pmORD - BFS
2 stops20h 55mMultiple Airlines
mié. 10/15:20 pmBFS - ORD
2 stops25h 15mMultiple Airlines
Deal found 9/15$836
This Mytrip deal was found by Cheapflights users on 9/14. 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.
jue. 10/307:30 pmORD - BFS
2 stops12h 05mMultiple Airlines
lun. 11/1010:20 pmBFS - ORD
3 stops46h 40mMultiple Airlines
Deal found 9/14$844
This Mytrip deal was found by Cheapflights users on 9/16. 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.
lun. 9/299:35 amMDW - BFS
3 stops29h 20mMultiple Airlines
jue. 10/27:10 amBFS - MDW
3 stops31h 29mMultiple Airlines
Deal found 9/16$2,132
This Mytrip deal was found by Cheapflights users on 9/16. 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.
mar. 9/309:20 amMDW - BFS
3 stops25h 20mMultiple Airlines
vie. 10/310:00 amBFS - MDW
3 stops28h 39mMultiple Airlines
Deal found 9/16$2,386

Cheapflights Fare Finder

 
Customize your flight search to find flights from Chicago 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 septiembre 17, 2025.
Use the filters below to find and compare flights from Chicago to Belfast Intl Airport that are best for you.

Fly from

Chicago

Fly to

Belfast Intl

Route

Depart

Return

Price

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

vie. 10/31

9:15 pm-10:45 pm

3 stops20h 30m

Belfast Intl

lun. 11/10

10:20 pm-3:00 pm

3 stops46h 40m

$726

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

vie. 10/31

9:15 pm-10:45 pm

3 stops20h 30m

Belfast Intl

vie. 11/7

9:30 pm-2:45 pm

3 stops47h 15m

$733

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

jue. 10/30

7:50 pm-10:20 pm

2 stops21h 30m

Belfast Intl

jue. 11/6

2:25 pm-4:20 pm

2 stops31h 55m

$760

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

sáb. 9/27

8:40 am-5:10 pm

3 stops26h 30m

Belfast Intl

jue. 10/2

4:25 pm-4:30 pm

3 stops30h 05m

$784

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

dom. 9/28

6:30 am-8:20 pm

2 stops31h 50m

Belfast Intl

jue. 10/2

4:25 pm-4:30 pm

3 stops30h 05m

$827

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

jue. 10/30

7:30 pm-12:35 pm

2 stops12h 05m

Belfast Intl

lun. 11/10

10:20 pm-3:00 pm

3 stops46h 40m

$844

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

dom. 9/28

7:15 pm-11:20 pm

3 stops22h 05m

Belfast Intl

mié. 10/1

5:20 pm-12:35 pm

2 stops25h 15m

$845

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

sáb. 10/4

8:40 am-11:00 am

3 stops20h 20m

Belfast Intl

sáb. 10/11

9:40 am-10:50 am

3 stops31h 10m

$892

ChicagoBelfast

MDW - BFS

MDWBFS

Chicago Midway

lun. 9/29

9:35 am-8:55 pm

3 stops29h 20m

Belfast Intl

jue. 10/2

7:10 am-8:39 am

3 stops31h 29m

$2,132

ChicagoBelfast

MDW - BFS

MDWBFS

Chicago Midway

mar. 9/30

9:20 am-4:40 pm

3 stops25h 20m

Belfast Intl

vie. 10/3

10:00 am-8:39 am

3 stops28h 39m

$2,386

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 17 results
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Best time to book a flight from Chicago to Belfast Intl

Have a flexible travel schedule? Discover the best time to fly to Belfast Intl 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 Intl Airport

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

Find hourly flight availability from Chicago to Belfast Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated septiembre 17, 2025.

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

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 septiembre 17, 2025.
Get a feel of what it's like to fly with British Airways from Chicago to Belfast Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,367 reviews

Boarding

6.9

Overall

6.7

Comfort

6.7

Crew

7.6

Entertainment

6.4

Food

6.3

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
7,367 reviews
British Airways
6.7
Okay
7,367 reviews

Boarding

6.9

Overall

6.7

Comfort

6.7

Crew

7.6

Entertainment

6.4

Food

6.3

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 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 to Belfast Intl Airport round-trip?

    Currently priced at $577, British Airways will fly you from Chicago to Belfast Intl Airport and back. In addition to British Airways, many other airlines offer competitively priced options for your trip.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Chicago 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.

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

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

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 Intl

Discover the top airline that operate flights from Chicago 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 septiembre 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$577Average$720FlexibilityNo cancel feeOn-time70%

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