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$437+ 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 5/25. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BHD
Feb 25 — Mar 41
Tue 2/25
Tue 3/4
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 February 20, 2025.

Round-trip from

$604
(oojo)

One-way from

$437
(Kiwi.com)

Popular in

May

Cheapest in

December
From Chicago (CHI) to Belfast
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One-way flight from Chicago (CHI) to Belfast
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Highest demand for flights based on searches. 24% potential increase in price ($281 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($55 potential savings vs. average RT price).
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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 February 20, 2025.

This oojo deal was found by Cheapflights users on 2/18. 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.
Tue 4/19:15 pmORD - BHD
1 stop12h 05mBritish Airways
Tue 4/86:35 amBHD - ORD
1 stop14h 10mBritish Airways
Deal found 2/18$604
This American Airlines deal was found by Cheapflights users on 2/18. 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.
Tue 4/17:10 pmORD - BHD
1 stop14h 10mAmerican Airlines
Tue 4/86:35 amBHD - ORD
2 stops17h 04mAmerican Airlines
Deal found 2/18$635
This Trip.com deal was found by Cheapflights users on 2/20. 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.
Tue 4/17:30 pmORD - BFS
2 stops14h 40mMultiple Airlines
Tue 4/87:45 amBFS - ORD
2 stops16h 35mMultiple Airlines
Deal found 2/20$650
This KLM deal was found by Cheapflights users on 2/20. 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.
Sun 4/66:15 pmORD - BHD
2 stops16h 40mKLM
Sun 4/135:25 pmBHD - ORD
1 stop26h 45mKLM
Deal found 2/20$673
This Netflights deal was found by Cheapflights users on 2/18. 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 Netflights is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/11:35 pmORD - BHD
2 stops21h 20mVirgin Atlantic
Tue 4/86:30 amBHD - ORD
2 stops16h 52mVirgin Atlantic
Deal found 2/18$676
This Finnair deal was found by Cheapflights users on 2/18. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/25:50 pmORD - BHD
1 stop10h 45mFinnair
Tue 9/94:25 pmBHD - ORD
1 stop25h 30mFinnair
Deal found 2/18$701
This Travelocity deal was found by Cheapflights users on 2/18. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/244:45 pmORD - BHD
2 stops20h 00mIberia
Mon 4/289:50 amBHD - ORD
2 stops18h 57mIberia
Deal found 2/18$847
This Mytrip deal was found by Cheapflights users on 2/19. 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 4/55:55 amORD - BHD
3 stops25h 50mMultiple Airlines
Sat 4/127:00 amBHD - ORD
2 stops37h 05mMultiple Airlines
Deal found 2/19$898
This Mytrip deal was found by Cheapflights users on 2/19. 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 3/2212:55 pmMDW - BFS
3 stops16h 40mMultiple Airlines
Fri 3/285:05 pmBFS - MDW
3 stops46h 15mMultiple Airlines
Deal found 2/19$1,302
This Delta deal was found by Cheapflights users on 2/20. 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.
Sun 4/66:42 pmMDW - BHD
2 stops16h 13mDelta
Sun 4/136:30 amBHD - MDW
2 stops17h 48mDelta
Deal found 2/20$1,336
This KLM deal was found by Cheapflights users on 2/19. 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.
Sun 3/236:42 pmMDW - BHD
2 stops17h 08mKLM
Fri 3/286:30 amBHD - MDW
2 stops16h 32mKLM
Deal found 2/19$4,187

Find flights from Chicago to Belfast within your budget

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 20, 2025.

Fly from

Chicago

Fly to

Belfast

Route

Depart

Return

Price

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Tue 4/1

9:15 pm-3:20 pm

1 stop12h 05m

Belfast City

Tue 4/8

6:35 am-2:45 pm

1 stop14h 10m

$604

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Tue 4/1

7:10 pm-3:20 pm

1 stop14h 10m

Belfast City

Tue 4/8

6:35 am-5:39 pm

2 stops17h 04m

$635

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Tue 4/1

7:30 pm-4:10 pm

2 stops14h 40m

Belfast Intl

Tue 4/8

7:45 am-6:20 pm

2 stops16h 35m

$650

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 4/6

6:15 pm-4:55 pm

2 stops16h 40m

Belfast City

Sun 4/13

5:25 pm-2:10 pm

1 stop26h 45m

$673

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Tue 4/1

1:35 pm-4:55 pm

2 stops21h 20m

Belfast City

Tue 4/8

6:30 am-5:22 pm

2 stops16h 52m

$676

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Thu 4/24

4:45 pm-6:45 pm

2 stops20h 00m

Belfast City

Mon 4/28

9:50 am-10:47 pm

2 stops18h 57m

$847

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sat 4/5

5:55 am-1:45 pm

3 stops25h 50m

Belfast City

Sat 4/12

7:00 am-2:05 pm

2 stops37h 05m

$898

ChicagoBelfast

MDW - BFS

MDWBFS

Chicago Midway

Sat 3/22

12:55 pm-10:35 am

3 stops16h 40m

Belfast Intl

Fri 3/28

5:05 pm-10:20 am

3 stops46h 15m

$1,302

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sat 3/22

9:15 pm-4:40 pm

1 stop14h 25m

Belfast City

Thu 3/27

6:35 am-5:40 pm

1 stop16h 05m

$1,311

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

Sun 4/6

6:42 pm-4:55 pm

2 stops16h 13m

Belfast City

Sun 4/13

6:30 am-6:18 pm

2 stops17h 48m

$1,336

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/20

Showing 1-10 of 16 results
1
2

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.

Travel insights for flights from Chicago to Belfast

Get recent, data-driven insights about flights from Chicago to Belfast including ideal travel times, pricing trends, and more.

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 February 20, 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 February 20, 2025.
Delta
8.0
Very good
8,219 reviews

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Delta
8.0
Very good
8,219 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

KLM
7.8
Good
1,333 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Finnair
7.6
Good
1,274 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Virgin Atlantic
7.5
Good
654 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,219 reviews

Food

7.3

Crew

8.5

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Overall

8.0

Reviews

1 / 20

10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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?

    British Airways, at $604, was found to be the cheapest airline from Chicago to Belfast.Alternate airlines to your destination round-trip include American Airlines and KLM. These flights start at 31% lower than the current average price 3 months from now.

  • What are the most popular routes from Chicago to Belfast?

    Most travelers choose Chicago O'Hare Intl - Belfast Intl, Chicago Midway - Belfast Intl or Chicago O'Hare Intl - 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

Browse thousands of different options on Cheapflights for your next trip

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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
St. Louis to Belfast Intl flights
St. Louis to Belfast City flights
O'Hare Intl to Belfast City flights
Midway to Belfast City flights

Top 2 airlines flying from Chicago to Belfast

Discover the top 2 airlines 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 20, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$612Average$782FlexibilityNo cancel feeOn-time70%
American AirlinesCheapest$658Average$782FlexibilityNo cancel feeOn-time71%
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