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$317+ 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 7/8. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BHD
abr. 2 — abr. 91
mié. 4/2
mié. 4/9
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 marzo 28, 2025.

Round-trip from

$755
(oojo)

One-way from

$317
(Kiwi.com)

Popular in

May

Cheapest in

December

Average price

$747
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. 23% potential increase in price ($257 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($56 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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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 marzo 28, 2025.

This American Airlines deal was found by Cheapflights users on 3/27. 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.
mar. 4/18:35 pmORD - BHD
1 stop12h 45mAmerican Airlines
dom. 4/63:50 pmBHD - ORD
1 stop25h 55mAmerican Airlines
Deal found 3/27$719
This oojo deal was found by Cheapflights users on 3/27. 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.
mar. 4/14:40 pmORD - BHD
2 stops14h 20mBritish Airways
dom. 4/68:05 pmBHD - ORD
2 stops25h 54mBritish Airways
Deal found 3/27$734
This Finnair deal was found by Cheapflights users on 3/27. 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.
dom. 5/115:40 pmORD - BHD
1 stop11h 50mMultiple Airlines
dom. 5/186:50 amBHD - ORD
1 stop16h 10mMultiple Airlines
Deal found 3/27$757
This Delta deal was found by Cheapflights users on 3/27. 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.
dom. 5/111:45 pmORD - BHD
2 stops21h 10mDelta
dom. 5/186:30 amBHD - ORD
2 stops16h 34mDelta
Deal found 3/27$816
This EaseMyTrip deal was found by Cheapflights users on 3/26. 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 EaseMyTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/105:25 pmMDW - BHD
2 stops17h 30mMultiple Airlines
sáb. 5/176:30 amBHD - MDW
2 stops20h 44mMultiple Airlines
Deal found 3/26$848
This Mytrip deal was found by Cheapflights users on 3/26. 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. 5/117:15 pmORD - BFS
3 stops21h 05mMultiple Airlines
dom. 5/183:55 pmBFS - ORD
3 stops30h 15mMultiple Airlines
Deal found 3/26$890
This Delta deal was found by Cheapflights users on 3/27. 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.
dom. 5/116:25 pmMDW - BHD
2 stops16h 30mDelta
dom. 5/186:30 amBHD - MDW
2 stops17h 15mDelta
Deal found 3/27$934
This Ticket deal was found by Cheapflights users on 3/26. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/105:25 pmMDW - BHD
2 stops17h 30mKLM
sáb. 5/176:30 amBHD - MDW
2 stops15h 51mKLM
Deal found 3/26$1,123

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 marzo 28, 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

sáb. 5/10

8:40 pm-2:40 pm

2 stops36h 00m

Belfast City

sáb. 5/17

7:00 pm-1:50 pm

1 stop24h 50m

$755

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

dom. 5/11

5:40 pm-11:30 am

1 stop11h 50m

Belfast City

dom. 5/18

6:50 am-5:00 pm

1 stop16h 10m

$757

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

dom. 5/11

1:45 pm-4:55 pm

2 stops21h 10m

Belfast City

dom. 5/18

6:30 am-5:04 pm

2 stops16h 34m

$816

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

sáb. 5/10

5:40 pm-12:15 pm

1 stop12h 35m

Belfast City

sáb. 5/17

7:05 am-5:42 pm

2 stops16h 37m

$837

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

sáb. 5/10

5:25 pm-4:55 pm

2 stops17h 30m

Belfast City

sáb. 5/17

6:30 am-9:14 pm

2 stops20h 44m

$848

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

dom. 5/11

7:15 pm-10:20 pm

3 stops21h 05m

Belfast Intl

dom. 5/18

3:55 pm-4:10 pm

3 stops30h 15m

$890

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

dom. 5/11

6:25 pm-4:55 pm

2 stops16h 30m

Belfast City

dom. 5/18

6:30 am-5:45 pm

2 stops17h 15m

$934

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

sáb. 5/10

5:25 pm-4:55 pm

2 stops17h 30m

Belfast City

sáb. 5/17

6:30 am-4:21 pm

2 stops15h 51m

$1,123

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

mar. 7/8

7:00 am-7:40 am

2 stops42h 40m

$317

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

mar. 7/8

7:00 am-8:25 pm

2 stops31h 25m

$353

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/25

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.

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 marzo 28, 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 marzo 28, 2025.
See what other customers who have flown with Delta, KLM and Finnair 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
7,897 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

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
7,897 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

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
1,321 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

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
1,267 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

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
7,897 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

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.
British Airways
6.6
Okay
6,712 reviews
Delta
8.0
Very good
7,897 reviews

Boarding

8.2

Comfort

8.0

Food

7.3

Entertainment

7.9

Overall

8.0

Crew

8.5

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 $755, was found to be the cheapest airline from Chicago to Belfast.Alternate airlines to your destination round-trip include Delta and American Airlines. These flights start at 12% lower than the current average price 3 months from now.

  • 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 $476. However, be on the lookout for offers from Finnair and American Airlines, 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.
O'Hare Intl to Belfast Intl flights
O'Hare Intl to Belfast City 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 marzo 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$621Average$724FlexibilityNo cancel feeOn-time70%
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