HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Belfast

$595+ Cheap flights from O'Hare Intl (ORD) to Belfast

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/5. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BHD
may. 5 — may. 121
lun. 5/5
lun. 5/12
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from O'Hare Intl to Belfast with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from O'Hare Intl to Belfast

Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) 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 abril 30, 2025.

Round-trip from

$676
(American Airlines)

Popular in

July

Cheapest in

February

Average price

$720
From Chicago O'Hare Intl to Belfast
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($191 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($40 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find flight deals from O'Hare Intl to Belfast

Cheapest flights from O'Hare Intl to Belfast
Explore the most affordable flight options available from O'Hare Intl to Belfast. Find the lowest fares from popular airlines and budget airlines, with prices last updated on abril 30, 2025.

This American Airlines deal was found by Cheapflights users on 4/29. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 5/55:40 pmORD - BHD
1 stop13h 15mAmerican Airlines
mar. 5/136:35 amBHD - ORD
1 stop14h 05mAmerican Airlines
Deal found 4/29$595
This Cheapflightsfares deal was found by Cheapflights users on 4/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/219:15 pmORD - BHD
1 stop12h 15mBritish Airways
jue. 9/49:35 amBHD - ORD
1 stop12h 20mBritish Airways
Deal found 4/29$716
This Mytrip deal was found by Cheapflights users on 4/28. 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.
mié. 7/163:50 pmORD - BFS
2 stops20h 45mMultiple Airlines
vie. 7/258:20 amBFS - ORD
2 stops36h 44mMultiple Airlines
Deal found 4/28$717
This Air France deal was found by Cheapflights users on 4/29. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/66:15 pmORD - BHD
2 stops20h 50mKLM
mar. 5/136:30 amBHD - ORD
2 stops18h 07mKLM
Deal found 4/29$721
This Delta deal was found by Cheapflights users on 4/29. 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.
mar. 5/65:05 pmORD - BHD
2 stops22h 00mDelta
mar. 5/136:30 amBHD - ORD
2 stops16h 59mDelta
Deal found 4/29$726
This Mytrip deal was found by Cheapflights users on 4/29. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 6/137:04 amORD - BHD
3 stops31h 21mMultiple Airlines
vie. 6/207:00 amBHD - ORD
2 stops20h 56mMultiple Airlines
Deal found 4/29$1,135
This Cheapflightsfares deal was found by Cheapflights users on 4/29. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 6/229:15 pmORD - BHD
2 stops14h 30mAer Lingus
sáb. 7/57:00 amBHD - ORD
2 stops18h 00mAer Lingus
Deal found 4/29$1,172
This Iberia deal was found by Cheapflights users on 4/29. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 5/184:55 pmORD - BHD
1 stop12h 35mIberia
mar. 8/56:35 amBHD - ORD
1 stop14h 15mIberia
Deal found 4/29$2,768

Cheapflights Fare Finder

Customize your flight search to find flights from O'Hare Intl 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 abril 30, 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Belfast that are best for you.

Fly from

O'Hare Intl

Fly to

Belfast

Route

Depart

Return

Price

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

mié. 8/13

7:15 pm-11:55 am

1 stop10h 40m

Belfast City

dom. 8/24

11:00 am-6:15 pm

1 stop13h 15m

$676

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

jue. 8/21

9:15 pm-3:30 pm

1 stop12h 15m

Belfast City

jue. 9/4

9:35 am-3:55 pm

1 stop12h 20m

$716

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

mié. 7/16

3:50 pm-6:35 pm

2 stops20h 45m

Belfast Intl

vie. 7/25

8:20 am-3:04 pm

2 stops36h 44m

$717

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

vie. 6/13

7:04 am-8:25 pm

3 stops31h 21m

Belfast City

vie. 6/20

7:00 am-9:56 pm

2 stops20h 56m

$1,135

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

dom. 6/22

9:15 pm-5:45 pm

2 stops14h 30m

Belfast City

sáb. 7/5

7:00 am-7:00 pm

2 stops18h 00m

$1,172

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

dom. 5/18

4:55 pm-11:30 am

1 stop12h 35m

Belfast City

mar. 8/5

6:35 am-2:50 pm

1 stop14h 15m

$2,768

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

jue. 5/22

4:20 pm-9:15 pm

1 stop22h 55m

Belfast City

mié. 8/6

6:30 am-2:40 pm

1 stop14h 10m

$2,964

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

vie. 5/23

5:30 pm-2:35 pm

3 stops39h 05m

$1,397

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

mar. 5/20

5:40 pm-10:35 am

1 stop10h 55m

$3,859

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

mar. 5/20

5:40 pm-1:00 pm

1 stop13h 20m

$3,890

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 12 results
1
2

Best time to book a flight from O'Hare Intl to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast from O'Hare Intl 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 O'Hare Intl Airport to Belfast

What is the cheapest time of day to fly from ORD to BFS?

Find hourly flight availability from O'Hare Intl 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 abril 30, 2025.

It’s optimal to fly from Chicago O'Hare Intl Airport to Belfast at noon. By choosing this option you can save up to 11% on the cost of your flight, compared to a flight in the morning.

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 abril 30, 2025.
See what other customers who have flown with KLM, Finnair and American Airlines from Chicago to Belfast have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,333 reviews

Food

7.2

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Crew

8.4

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
KLM
7.8
Good
1,333 reviews
KLM
7.8
Good
1,333 reviews

Food

7.2

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Crew

8.4

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
Finnair
7.6
Good
1,273 reviews
KLM
7.8
Good
1,333 reviews

Food

7.2

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Crew

8.4

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
American Airlines
7.2
Good
10,000 reviews
KLM
7.8
Good
1,333 reviews

Food

7.2

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Crew

8.4

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
Aer Lingus
7.0
Good
1,076 reviews
KLM
7.8
Good
1,333 reviews

Food

7.2

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Crew

8.4

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.
Iberia
7.0
Good
2,696 reviews
KLM
7.8
Good
1,333 reviews

Food

7.2

Entertainment

7.1

Boarding

7.8

Comfort

7.7

Crew

8.4

Overall

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Mar 2025

LBA - AMS

Overall, the flight from Leeds Bradford to Amsterdam was at expected. The crew were efficient at boarding and professional on board. The only issue was extremely slow check in at Leeds Bradford which was very frustrating.

Related info for your journey

Find useful and relevant information for your journey from O'Hare Intl 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 O'Hare Intl Airport to Belfast round-trip?

    Currently priced at $676, American Airlines will fly you from Chicago O'Hare Intl Airport to Belfast and back. In addition to American Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from British Airways and Aer Lingus - these airlines can fly you to your destination from $716 and $1,172, respectively. You may be able to fly from Chicago O'Hare Intl Airport to Belfast for 14% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Chicago O'Hare Intl Airport to Belfast one-way?

    One-way options have recently been found by users for as low as $3,859 on Finnair. Other airlines that offer cheap prices include British Airways from $3,890 and American Airlines from $4,985 one-way.

  • Can I find deals for flights from O'Hare Intl to Belfast that include hotel bookings?

    Yes. In addition to deals on O'Hare Intl to Belfast flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from O'Hare Intl to Belfast?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from O'Hare Intl to Belfast.

  • Can I find deals for business class flights from O'Hare Intl to Belfast?

    Yes. Cheapflights offers flight deals from O'Hare Intl 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 O'Hare Intl Airport to Belfast?

    Currently, February is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Belfast (average of $657). Flying from Chicago O'Hare Intl Airport 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

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for O'Hare Intl 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

Top airline flying from O'Hare Intl to Belfast

Discover the top airline that operate flights from O'Hare Intl 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 abril 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$622Average$724FlexibilityNo cancel feeOn-time70%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.