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$278+ 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 3/18. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BHD
Mar 19 — Mar 261
Thu 3/19
Thu 3/26
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 February 17, 2026.

This British Airways deal was found by Cheapflights users on 2/15. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/47:05 pm
ORD
-
BHD
1 stop14h 25m
British Airways
Mon 5/117:35 pm
BHD
-
ORD
1 stop24h 15m
British Airways
Deal found 2/15$666
This British Airways deal was found by Cheapflights users on 2/14. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/297:05 pm
ORD
-
BHD
1 stop31h 45m
British Airways
Tue 4/146:20 pm
BHD
-
ORD
1 stop25h 30m
British Airways
Deal found 2/14$676
This British Airways deal was found by Cheapflights users on 2/15. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/39:15 pm
ORD
-
BHD
1 stop28h 20m
British Airways
Wed 5/137:40 pm
BHD
-
ORD
1 stop24h 10m
British Airways
Deal found 2/15$677
This FlightHub deal was found by Cheapflights users on 2/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/53:16 pm
ORD
-
BHD
2 stops18h 04m
British Airways
Wed 5/138:35 pm
BHD
-
ORD
1 stop23h 15m
British Airways
Deal found 2/15$683
This Delta deal was found by Cheapflights users on 2/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/64:50 pm
ORD
-
BHD
1 stop18h 05m
Delta
Thu 5/145:30 pm
BHD
-
ORD
1 stop26h 45m
Delta
Deal found 2/15$686
This Delta deal was found by Cheapflights users on 2/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/304:50 pm
ORD
-
BHD
1 stop10h 30m
Delta
Tue 4/145:30 pm
BHD
-
ORD
1 stop27h 00m
Delta
Deal found 2/14$687
This FlightHub deal was found by Cheapflights users on 2/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/47:05 pm
ORD
-
BHD
1 stop14h 25m
British Airways
Tue 5/126:30 am
BHD
-
ORD
2 stops19h 54m
British Airways
Deal found 2/15$688
This Delta deal was found by Cheapflights users on 2/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/301:57 pm
ORD
-
BHD
2 stops20h 58m
Delta
Thu 4/95:30 pm
BHD
-
ORD
1 stop26h 45m
Delta
Deal found 2/14$691
This KLM deal was found by Cheapflights users on 2/15. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/64:50 pm
ORD
-
BHD
1 stop18h 05m
KLM
Mon 5/115:30 pm
BHD
-
ORD
1 stop26h 45m
KLM
Deal found 2/15$695
This Delta deal was found by Cheapflights users on 2/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/64:50 pm
ORD
-
BHD
1 stop10h 30m
Delta
Tue 5/129:50 am
BHD
-
ORD
2 stops18h 45m
Delta
Deal found 2/15$704
This British Airways deal was found by Cheapflights users on 2/15. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/47:05 pm
ORD
-
BHD
1 stop14h 25m
British Airways
Sun 5/107:10 pm
BHD
-
ORD
1 stop24h 40m
British Airways
Deal found 2/15$716
This Mytrip deal was found by Cheapflights users on 2/16. 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.
Sun 3/87:50 pm
ORD
-
BFS
2 stops18h 05m
Multiple Airlines
Thu 3/126:15 am
BFS
-
ORD
3 stops39h 10m
Multiple Airlines
Deal found 2/16$734

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 February 17, 2026.

Round-trip from

$666
(British Airways)

One-way from

$278
(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 February 17, 2026.
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

Mon 5/4

7:05 pm-3:30 pm

1 stop14h 25m

Belfast City

Tue 5/12

8:25 pm-1:50 pm

1 stop23h 25m

$666

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 5/4

7:05 pm-3:30 pm

1 stop14h 25m

Belfast City

Mon 5/11

7:35 pm-1:50 pm

1 stop24h 15m

$666

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 5/4

7:05 pm-3:30 pm

1 stop14h 25m

Belfast City

Thu 5/14

6:30 am-3:55 pm

1 stop15h 25m

$666

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 3/29

7:05 pm-8:50 am

1 stop31h 45m

Belfast City

Tue 4/14

6:20 pm-1:50 pm

1 stop25h 30m

$676

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 5/3

9:15 pm-7:35 am

1 stop28h 20m

Belfast City

Wed 5/13

7:40 pm-1:50 pm

1 stop24h 10m

$677

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Tue 5/5

3:16 pm-3:20 pm

2 stops18h 04m

Belfast City

Tue 5/12

6:30 am-6:15 pm

1 stop17h 45m

$683

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 5/6

4:50 pm-4:55 pm

1 stop18h 05m

Belfast City

Thu 5/14

5:30 pm-2:15 pm

1 stop26h 45m

$686

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 3/30

1:57 pm-4:55 pm

2 stops20h 58m

Belfast City

Tue 4/14

5:30 pm-2:30 pm

1 stop27h 00m

$691

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 5/6

4:50 pm-4:55 pm

1 stop18h 05m

Belfast City

Wed 5/13

9:50 am-10:35 pm

2 stops18h 45m

$695

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Mon 3/30

7:00 am-9:20 am

2 stops20h 20m

Belfast City

Wed 4/8

9:50 am-10:16 pm

2 stops18h 26m

$701

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/14

Showing 1-10 of 53 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
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 February 17, 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
7,752 reviews

Food

6.4

Comfort

6.8

Boarding

6.9

Overall

6.7

Crew

7.6

Entertainment

6.4

Reviews

1 / 20
8.0
Excellent

Lakshmi,Dec 2025

SFO - LHR

I had a great time on the flight with good entertainment and food. The staff was awesome. The only thing was there was a delay in boarding and takeoff from London. However, I was pleasantly surprised when the airline sent an apology for the few later landing in Mumbai. They did not have WiFi on board on the leg from London to Mumbai but that was okay for me. On the first leg from SF to London, a couple of seats ahead of me had issues with their display so they could not watch anything on their screens although the stewardess gas be them an option to use the WiFi on their devices. This did not affect me, however, so that was cool. I would recommend British Airways. This was my first time flying with them and I had a lovely flight.
British Airways
6.7
Okay
7,752 reviews
British Airways
6.7
Okay
7,752 reviews

Food

6.4

Comfort

6.8

Boarding

6.9

Overall

6.7

Crew

7.6

Entertainment

6.4

Reviews

1 / 20
8.0
Excellent

Lakshmi,Dec 2025

SFO - LHR

I had a great time on the flight with good entertainment and food. The staff was awesome. The only thing was there was a delay in boarding and takeoff from London. However, I was pleasantly surprised when the airline sent an apology for the few later landing in Mumbai. They did not have WiFi on board on the leg from London to Mumbai but that was okay for me. On the first leg from SF to London, a couple of seats ahead of me had issues with their display so they could not watch anything on their screens although the stewardess gas be them an option to use the WiFi on their devices. This did not affect me, however, so that was cool. I would recommend British Airways. This was my first time flying with them and I had a lovely flight.

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 25m. Fly via British Airways or Delta 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 February 17, 2026.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$577Average$696FlexibilityNo cancel feeOn-time70%

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