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$318+ 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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BHD
Jul 18 — Jul 251
Sat 7/18
Sat 7/25
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 June 18, 2026.

This Mytrip deal was found by Cheapflights users on 6/17. 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 7/59:50 am
ORD
-
BFS
2 stops31h 00m
Multiple Airlines
Tue 7/2810:45 pm
BFS
-
ORD
2 stops24h 12m
Multiple Airlines
Deal found 6/17$858
This Mytrip deal was found by Cheapflights users on 6/14. 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.
Wed 7/2910:25 pm
ORD
-
BFS
2 stops17h 20m
Multiple Airlines
Wed 8/510:45 pm
BFS
-
ORD
2 stops27h 07m
Multiple Airlines
Deal found 6/14$875
This Mytrip deal was found by Cheapflights users on 6/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/87:25 pm
ORD
-
BHD
2 stops19h 40m
Multiple Airlines
Wed 8/127:00 am
BHD
-
ORD
3 stops33h 16m
Multiple Airlines
Deal found 6/13$906
This Mytrip deal was found by Cheapflights users on 6/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/510:25 pm
ORD
-
BFS
2 stops16h 00m
Multiple Airlines
Wed 8/125:55 am
BFS
-
ORD
3 stops34h 21m
Multiple Airlines
Deal found 6/13$910
This Mytrip deal was found by Cheapflights users on 6/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:25 pm
ORD
-
BFS
2 stops20h 25m
Multiple Airlines
Sun 10/256:00 am
BFS
-
ORD
3 stops44h 20m
Multiple Airlines
Deal found 6/13$913
This Mytrip deal was found by Cheapflights users on 6/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/58:45 am
ORD
-
BHD
3 stops22h 35m
Multiple Airlines
Wed 8/127:00 am
BHD
-
ORD
3 stops33h 16m
Multiple Airlines
Deal found 6/13$929
This oojo deal was found by Cheapflights users on 6/13. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/247:05 pm
ORD
-
BHD
1 stop11h 50m
British Airways
Mon 8/313:20 pm
BHD
-
ORD
1 stop28h 30m
British Airways
Deal found 6/13$931
This Mytrip deal was found by Cheapflights users on 6/14. 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.
Tue 7/148:45 am
ORD
-
BFS
3 stops29h 05m
Multiple Airlines
Mon 7/205:35 pm
BFS
-
ORD
3 stops29h 22m
Multiple Airlines
Deal found 6/14$934
This KAYAK deal was found by Cheapflights users on 6/17. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/29:50 pm
ORD
-
BHD
1 stop14h 45m
British Airways
Sun 11/86:30 am
BHD
-
ORD
1 stop18h 15m
British Airways
Deal found 6/17$946
This Mytrip deal was found by Cheapflights users on 6/15. 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.
Thu 7/307:25 pm
ORD
-
BFS
2 stops14h 25m
Multiple Airlines
Thu 8/68:20 am
BFS
-
ORD
2 stops14h 37m
Multiple Airlines
Deal found 6/15$952
This KLM deal was found by Cheapflights users on 6/13. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2412:29 pm
ORD
-
BHD
2 stops14h 51m
KLM
Mon 8/315:30 pm
BHD
-
ORD
1 stop26h 45m
KLM
Deal found 6/13$962
This Cheapflightsfares deal was found by Cheapflights users on 6/13. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/169:15 pm
ORD
-
BHD
1 stop14h 55m
British Airways
Sun 10/256:30 am
BHD
-
ORD
1 stop18h 15m
British Airways
Deal found 6/13$988

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 June 18, 2026.

Round-trip from

$858
(Mytrip)

One-way from

$318
(Kiwi.com)
From Chicago (CHI) to Belfast
Search Deals
One-way flight 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 June 18, 2026.
Use the filters below to find and compare flights from Chicago to Belfast that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Sun 7/5

9:50 am-10:50 pm

2 stops31h 00m

Belfast Intl

Tue 7/28

10:45 pm-4:57 pm

2 stops24h 12m

$858

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Wed 7/29

10:25 pm-9:45 pm

2 stops17h 20m

Belfast Intl

Wed 8/5

10:45 pm-7:52 pm

2 stops27h 07m

$875

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Wed 8/5

10:25 pm-8:25 pm

2 stops16h 00m

Belfast Intl

Wed 8/12

5:55 am-10:16 am

3 stops34h 21m

$910

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Tue 7/14

9:50 am-7:50 pm

2 stops28h 00m

Belfast Intl

Mon 7/20

5:35 pm-4:57 pm

3 stops29h 22m

$938

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Fri 10/16

7:25 pm-11:20 pm

3 stops21h 55m

Belfast Intl

Sun 10/25

7:30 am-9:20 pm

3 stops42h 50m

$945

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 11/2

9:50 pm-6:35 pm

1 stop14h 45m

Belfast City

Sun 11/8

6:30 am-6:45 pm

1 stop18h 15m

$946

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 8/24

12:29 pm-9:20 am

2 stops14h 51m

Belfast City

Mon 8/31

5:30 pm-2:15 pm

1 stop26h 45m

$962

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Thu 7/30

7:25 pm-11:30 pm

3 stops22h 05m

Belfast Intl

Thu 8/6

8:20 am-7:52 pm

2 stops17h 32m

$966
Quickest round-trip

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 8/24

7:05 pm-3:30 pm

1 stop14h 25m

Belfast City

Mon 8/31

11:35 am-6:15 pm

1 stop12h 40m

$989

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 8/5

10:30 pm-3:40 pm

1 stop11h 10m

Belfast City

Wed 8/12

6:30 am-4:58 pm

2 stops16h 28m

$1,003

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/14

Showing 1-10 of 52 resultsSorted by cheapest first
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6

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
No data available for this route at this time. Please check back soon.

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 June 18, 2026.
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
8,054 reviews

Overall

6.7

Entertainment

6.4

Food

6.4

Comfort

6.8

Boarding

6.9

Crew

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

IAH - LHR

Airline was good the flight attendant were very helpful and kind. The problem I had is with cheap tickets, my ticket was not allowed one check in baggage this was new to me. I do a lot of traveling overseas and 1 check in baggage is always allowed. Also I bought insurance for my ticket it proved to be useless. I have called several times and spoke to your customer service, not one single person mentioned it to me that baggage was not allowed. All this additional expense was too much for me. I even asked one of your customer service representative I need to buy extra baggage should I buy it now and he told me when you receive check in information you can buy it @ that time never mentioned it to me that my ticket didn’t include baggage. It was very frustrating. I will never use cheap ticket again.
British Airways
6.7
Okay
8,054 reviews
British Airways
6.7
Okay
8,054 reviews

Overall

6.7

Entertainment

6.4

Food

6.4

Comfort

6.8

Boarding

6.9

Crew

7.7

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

IAH - LHR

Airline was good the flight attendant were very helpful and kind. The problem I had is with cheap tickets, my ticket was not allowed one check in baggage this was new to me. I do a lot of traveling overseas and 1 check in baggage is always allowed. Also I bought insurance for my ticket it proved to be useless. I have called several times and spoke to your customer service, not one single person mentioned it to me that baggage was not allowed. All this additional expense was too much for me. I even asked one of your customer service representative I need to buy extra baggage should I buy it now and he told me when you receive check in information you can buy it @ that time never mentioned it to me that my ticket didn’t include baggage. It was very frustrating. I will never use cheap ticket again.

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 14h 45m. 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

Browse thousands of different options on Cheapflights for your next trip

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Complete your trip

Complete your trip to Belfast by adding a car rental and/or hotel reservation to your travel itinerary.
Belfast car rentals
Belfast Intl Airport car rentals

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 June 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$577Average$860FlexibilityNo cancel feeOn-time70%

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