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$289+ 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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — BHD
jul. 6 — jul. 131
dom. 7/6
dom. 7/13
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 julio 1, 2025.

Round-trip from

$674
(Justfly.com)

One-way from

$368
(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 julio 1, 2025.

This Justfly.com deal was found by Cheapflights users on 6/30. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/2110:35 pmORD - BHD
1 stop10h 55mBritish Airways
jue. 9/49:35 amBHD - ORD
1 stop13h 25mBritish Airways
Deal found 6/30$674
This American Airlines deal was found by Cheapflights users on 6/30. 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.
jue. 8/218:35 pmORD - BHD
1 stop12h 55mAmerican Airlines
jue. 9/49:35 amBHD - ORD
2 stops15h 15mAmerican Airlines
Deal found 6/30$693
This Mytrip deal was found by Cheapflights users on 6/30. 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.
jue. 8/143:45 pmORD - BFS
2 stops18h 55mMultiple Airlines
jue. 8/217:10 amBFS - ORD
2 stops17h 50mMultiple Airlines
Deal found 6/30$725
This KLM deal was found by Cheapflights users on 6/30. 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.
jue. 8/144:20 pmORD - BHD
1 stop18h 35mKLM
jue. 8/216:30 amBHD - ORD
2 stops15h 43mKLM
Deal found 6/30$766
This Delta deal was found by Cheapflights users on 6/29. 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.
vie. 10/34:20 pmORD - BHD
1 stop22h 55mDelta
mar. 10/76:30 amBHD - ORD
1 stop13h 40mDelta
Deal found 6/29$769
This Virgin Atlantic deal was found by Cheapflights users on 6/29. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/144:20 pmORD - BHD
1 stop22h 45mVirgin Atlantic
jue. 8/216:30 amBHD - ORD
2 stops23h 26mVirgin Atlantic
Deal found 6/29$770
This Delta deal was found by Cheapflights users on 6/30. 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.
mié. 8/137:17 pmMDW - BHD
2 stops19h 58mDelta
dom. 8/246:30 amBHD - MDW
2 stops21h 14mDelta
Deal found 6/30$775
This Mytrip deal was found by Cheapflights users on 6/30. 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.
jue. 8/143:45 pmORD - BHD
2 stops19h 35mAer Lingus
jue. 8/2111:00 amBHD - ORD
2 stops14h 00mAer Lingus
Deal found 6/30$814
This Mytrip deal was found by Cheapflights users on 6/30. 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.
jue. 8/149:40 pmORD - BHD
2 stops17h 15mMultiple Airlines
jue. 8/213:15 pmBHD - ORD
2 stops30h 40mMultiple Airlines
Deal found 6/30$892
This Mytrip deal was found by Cheapflights users on 6/30. 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.
vie. 7/189:40 amMDW - BHD
3 stops22h 00mMultiple Airlines
mar. 7/296:50 pmBHD - MDW
3 stops43h 55mMultiple Airlines
Deal found 6/30$1,594
This KLM deal was found by Cheapflights users on 6/30. 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.
vie. 7/46:20 pmMDW - BHD
2 stops16h 35mKLM
dom. 7/66:30 amBHD - MDW
2 stops17h 10mKLM
Deal found 6/30$4,055

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 julio 1, 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

jue. 8/21

10:35 pm-3:30 pm

1 stop10h 55m

Belfast City

jue. 9/4

9:35 am-5:00 pm

1 stop13h 25m

$674

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

jue. 8/21

8:35 pm-3:30 pm

1 stop12h 55m

Belfast City

jue. 9/4

9:35 am-6:50 pm

2 stops15h 15m

$693

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

jue. 8/14

3:45 pm-4:40 pm

2 stops18h 55m

Belfast Intl

jue. 8/21

7:10 am-7:00 pm

2 stops17h 50m

$725

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

jue. 8/14

4:20 pm-4:55 pm

1 stop18h 35m

Belfast City

jue. 8/21

6:30 am-4:13 pm

2 stops15h 43m

$766

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

vie. 10/3

4:20 pm-9:15 pm

1 stop22h 55m

Belfast City

mar. 10/7

6:30 am-2:10 pm

1 stop13h 40m

$769

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

jue. 8/14

4:20 pm-9:05 pm

1 stop22h 45m

Belfast City

jue. 8/21

6:30 am-11:56 pm

2 stops23h 26m

$770

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

mié. 8/13

7:17 pm-9:15 pm

2 stops19h 58m

Belfast City

dom. 8/24

6:30 am-9:44 pm

2 stops21h 14m

$775

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

jue. 8/14

3:45 pm-5:20 pm

2 stops19h 35m

Belfast City

jue. 8/21

11:00 am-7:00 pm

2 stops14h 00m

$814

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

jue. 8/14

9:40 pm-8:55 pm

2 stops17h 15m

Belfast City

jue. 8/21

3:15 pm-3:55 pm

2 stops30h 40m

$892

ChicagoBelfast

MDW - BHD

MDWBHD

Chicago Midway

vie. 7/18

9:40 am-1:40 pm

3 stops22h 00m

Belfast City

mar. 7/29

6:50 pm-8:45 am

3 stops43h 55m

$1,594

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Showing 1-10 of 16 results
1
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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 julio 1, 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.

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 julio 1, 2025.
Peruse reviews from past customers who have flown with Delta, KLM, and Virgin Atlantic 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.
Delta
8.0
Very good
7,973 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

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
7,973 reviews
Delta
8.0
Very good
7,973 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

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
1,366 reviews
Delta
8.0
Very good
7,973 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

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
654 reviews
Delta
8.0
Very good
7,973 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

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
7,973 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

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
1,140 reviews
Delta
8.0
Very good
7,973 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

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?

    British Airways, at $674, was found to be the cheapest airline from Chicago to Belfast.Alternate airlines to your destination round-trip include American Airlines and KLM.

  • 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

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
O'Hare Intl to Belfast City flights
Midway to Belfast City flights
St. Louis to Belfast Intl flights
St. Louis 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 julio 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$622Average$720FlexibilityNo cancel feeOn-time70%

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