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$295+ 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 7/16. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BHD
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$680
(American Airlines)

One-way from

$295
(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 June 12, 2025.

This American Airlines deal was found by Cheapflights users on 6/12. 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.
Thu 8/217:10 pmORD - BHD
1 stop14h 20mAmerican Airlines
Thu 9/49:35 amBHD - ORD
1 stop14h 40mAmerican Airlines
Deal found 6/12$680
This FlightHub deal was found by Cheapflights users on 6/12. 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 8/139:15 pmORD - BHD
1 stop12h 20mBritish Airways
Sun 8/2411:00 amBHD - ORD
1 stop12h 00mBritish Airways
Deal found 6/12$681
This Delta deal was found by Cheapflights users on 6/12. 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.
Thu 7/247:01 pmORD - BHD
2 stops15h 54mDelta
Thu 8/216:30 amBHD - ORD
2 stops18h 58mDelta
Deal found 6/12$770
This Mytrip deal was found by Cheapflights users on 6/12. 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 7/277:25 pmORD - BFS
2 stops20h 05mMultiple Airlines
Sun 8/36:50 amBFS - ORD
2 stops20h 25mMultiple Airlines
Deal found 6/12$770
This KLM deal was found by Cheapflights users on 6/12. 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.
Thu 7/246:20 pmMDW - BHD
2 stops20h 45mKLM
Thu 8/216:30 amBHD - MDW
2 stops18h 07mKLM
Deal found 6/12$770
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/136:17 pmMDW - BHD
2 stops20h 58mDelta
Sun 8/246:30 amBHD - MDW
2 stops21h 19mDelta
Deal found 6/11$771
This Trip.com deal was found by Cheapflights users on 6/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/264:20 pmORD - BHD
1 stop22h 55mVirgin Atlantic
Sat 8/26:30 amBHD - ORD
1 stop13h 40mVirgin Atlantic
Deal found 6/11$867
This Mytrip deal was found by Cheapflights users on 6/11. 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.
Sat 7/267:25 pmORD - BHD
2 stops19h 25mMultiple Airlines
Sat 8/26:55 amBHD - ORD
3 stops41h 58mMultiple Airlines
Deal found 6/11$924
This Air France deal was found by Cheapflights users on 6/10. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/15:41 pmORD - BHD
2 stops17h 14mKLM
Tue 7/86:30 amBHD - ORD
2 stops17h 41mKLM
Deal found 6/10$1,182
This Cheapflightsfares deal was found by Cheapflights users on 6/12. 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.
Sun 8/34:55 pmORD - BHD
1 stop21h 15mAer Lingus
Fri 8/86:40 amBHD - ORD
2 stops15h 05mAer Lingus
Deal found 6/12$1,308
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/309:40 amMDW - BFS
3 stops28h 55mMultiple Airlines
Wed 8/69:30 amBFS - MDW
3 stops36h 54mMultiple Airlines
Deal found 6/10$1,518
This Mytrip deal was found by Cheapflights users on 6/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/309:40 amMDW - BHD
3 stops23h 25mMultiple Airlines
Wed 8/67:05 amBHD - MDW
3 stops39h 19mMultiple Airlines
Deal found 6/10$1,625

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 12, 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

Thu 8/21

7:10 pm-3:30 pm

1 stop14h 20m

Belfast City

Thu 9/4

9:35 am-6:15 pm

1 stop14h 40m

$680

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 8/13

9:15 pm-3:35 pm

1 stop12h 20m

Belfast City

Sun 8/24

11:00 am-5:00 pm

1 stop12h 00m

$681

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Thu 7/24

7:01 pm-4:55 pm

2 stops15h 54m

Belfast City

Thu 8/21

6:30 am-7:28 pm

2 stops18h 58m

$770

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Sun 7/27

7:25 pm-9:30 pm

2 stops20h 05m

Belfast Intl

Sun 8/3

6:50 am-9:15 pm

2 stops20h 25m

$770

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Thu 7/24

6:20 pm-9:05 pm

2 stops20h 45m

Belfast City

Thu 8/21

6:30 am-6:37 pm

2 stops18h 07m

$770

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Wed 8/13

6:17 pm-9:15 pm

2 stops20h 58m

Belfast City

Sun 8/24

6:30 am-9:49 pm

2 stops21h 19m

$771

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sat 7/26

4:20 pm-9:15 pm

1 stop22h 55m

Belfast City

Sat 8/2

6:30 am-2:10 pm

1 stop13h 40m

$867

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sat 7/26

7:25 pm-8:50 pm

2 stops19h 25m

Belfast City

Sat 8/2

6:55 am-6:53 pm

3 stops41h 58m

$924

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Tue 7/1

5:41 pm-4:55 pm

2 stops17h 14m

Belfast City

Tue 7/8

6:30 am-6:11 pm

2 stops17h 41m

$1,182

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 8/3

4:55 pm-8:10 pm

1 stop21h 15m

Belfast City

Fri 8/8

6:40 am-3:45 pm

2 stops15h 05m

$1,308

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 21 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 June 12, 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.

Rainfall in Belfast by month

Plan your trip to Belfast by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Belfast ranges from 2.0 - 3.5 inches per month. October is typically the wettest month, when rainfall can reach 3.5 in. April is typically the driest time to visit Belfast when rainfall is around 2.0 in.

Temperature in Belfast by month

Plan your trip to Belfast by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Belfast, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 41.0 F).

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 12, 2025.
See what other customers who have flown with Delta, KLM and Virgin Atlantic from Chicago to Belfast have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,946 reviews

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,946 reviews
Delta
8.0
Very good
7,946 reviews

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,946 reviews

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Virgin Atlantic
7.4
Good
652 reviews
Delta
8.0
Very good
7,946 reviews

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,946 reviews

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Aer Lingus
7.1
Good
1,117 reviews
Delta
8.0
Very good
7,946 reviews

Crew

8.5

Overall

8.0

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection 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.

  • What are the cheapest airlines flying from Chicago to Belfast round-trip?

    American Airlines, at $680, was found to be the cheapest airline from Chicago to Belfast.Alternate airlines to your destination round-trip include British Airways and Delta.

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

    The cheapest airline one-way is British Airways, with whom users have recently found tickets for as low as $379. However, be on the lookout for offers from American Airlines and Virgin Atlantic, 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 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

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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.
St. Louis to Belfast Intl flights
St. Louis to Belfast City flights
O'Hare Intl to Belfast Intl flights
O'Hare Intl 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$300Average$718FlexibilityNo cancel feeOn-time70%

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