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Cheap flights from Chicago O'Hare Intl Airport to Belfast from $311

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago O'Hare Intl Airport to Belfast departing on 1/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Chicago O'Hare Intl Airport to Belfast

Cheap round-trip flights

Multiple Airlines Logo
6:30 pm - 6:55 pmORD-BFS
18h 25m2 stops
Multiple Airlines Logo
7:10 am - 5:20 pmBFS-ORD
16h 10m2 stops
$599Multiple Airlines
Find Deal
Sun, Nov 9 - Sun, Nov 16
Finnair Logo
9:45 pm - 2:15 pmORD-BHD
10h 30m1 stop
Finnair Logo
11:25 am - 6:45 pmBHD-ORD
13h 20m1 stop
$630Finnair
Find Deal
Wed, Jan 21 - Wed, Jan 28
American Airlines Logo
8:45 pm - 2:15 pmORD-BHD
11h 30m1 stop
American Airlines Logo
6:35 am - 5:24 pmBHD-ORD
16h 49m2 stops
$641American Airlines
Find Deal
Wed, Jan 21 - Wed, Jan 28
KLM Logo
4:25 pm - 9:00 pmORD-BHD
22h 35m1 stop
KLM Logo
5:20 pm - 2:20 pmBHD-ORD
27h 00m1 stop
$650KLM
Find Deal
Wed, Nov 26 - Tue, Dec 2
British Airways Logo
12:05 pm - 9:10 amORD-BHD
15h 05m2 stops
British Airways Logo
6:35 am - 5:38 pmBHD-ORD
17h 03m2 stops
$657British Airways
Find Deal
Wed, Jan 21 - Wed, Jan 28
Multiple Airlines Logo
4:25 pm - 4:50 pmORD-BHD
18h 25m1 stop
Multiple Airlines Logo
5:20 pm - 2:20 pmBHD-ORD
27h 00m1 stop
$658Multiple Airlines
Find Deal
Wed, Nov 26 - Tue, Dec 2
British Airways Logo
3:30 pm - 7:30 amORD-BHD
34h 00m2 stops
British Airways Logo
7:25 pm - 1:50 pmBHD-ORD
24h 25m1 stop
$660British Airways
Find Deal
Wed, Nov 26 - Tue, Dec 2
Multiple Airlines Logo
6:30 pm - 6:40 pmORD-BHD
18h 10m2 stops
Multiple Airlines Logo
6:35 am - 5:20 pmBHD-ORD
16h 45m2 stops
$662Multiple Airlines
Find Deal
Sun, Mar 1 - Thu, Mar 5
American Airlines Logo
8:45 pm - 4:40 pmORD-BHD
13h 55m1 stop
American Airlines Logo
6:35 am - 4:25 pmBHD-ORD
14h 50m1 stop
$667American Airlines
Find Deal
Thu, Mar 5 - Thu, Mar 12
Delta Logo
4:25 pm - 4:50 pmORD-BHD
18h 25m1 stop
Delta Logo
6:30 am - 6:22 pmBHD-ORD
17h 52m2 stops
$727Delta
Find Deal
Wed, Dec 3 - Sun, Dec 7

British Airways flights from Chicago O'Hare Intl Airport to Belfast

Our best British Airways deals on Chicago O'Hare Intl Airport to Belfast flight tickets
British Airways
Jan 21
ORD12:05 pmChicago O'Hare Intl
15h 05m
2 stops
BHD9:10 amBelfast City
Jan 28
BHD6:35 amBelfast City
17h 03m
2 stops
ORD5:38 pmChicago O'Hare Intl
$657
Find similar
British Airways
Nov 26
ORD3:30 pmChicago O'Hare Intl
34h 00m
2 stops
BHD7:30 amBelfast City
Dec 2
BHD7:25 pmBelfast City
24h 25m
1 stop
ORD1:50 pmChicago O'Hare Intl
$660
Find similar
British Airways
Dec 3
ORD5:10 pmChicago O'Hare Intl
32h 20m
1 stop
BHD7:30 amBelfast City
Dec 7
BHD6:30 amBelfast City
13h 20m
1 stop
ORD1:50 pmChicago O'Hare Intl
$686
Find similar

Delta flights from Chicago O'Hare Intl Airport to Belfast

Our best Delta deals on Chicago O'Hare Intl Airport to Belfast flight tickets
Delta
Oct 3
ORD4:15 pmChicago O'Hare Intl
23h 00m
1 stop
BHD9:15 pmBelfast City
Oct 7
BHD6:30 amBelfast City
13h 40m
1 stop
ORD2:10 pmChicago O'Hare Intl
$717
Find similar
Delta
Oct 3
ORD6:50 pmChicago O'Hare Intl
20h 25m
2 stops
BHD9:15 pmBelfast City
Oct 7
BHD6:30 amBelfast City
13h 40m
1 stop
ORD2:10 pmChicago O'Hare Intl
$722
Find similar
Delta
Dec 3
ORD4:25 pmChicago O'Hare Intl
18h 25m
1 stop
BHD4:50 pmBelfast City
Dec 7
BHD6:30 amBelfast City
17h 52m
2 stops
ORD6:22 pmChicago O'Hare Intl
$727
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport 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, momondo users made 832,500 searches. Data last updated September 26, 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

Fly to

Route

Depart

Return

Price

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Sun 11/9

6:30 pm-6:55 pm

2 stops18h 25m

Belfast Intl

Sun 11/16

7:10 am-5:20 pm

2 stops16h 10m

$599

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 1/21

9:45 pm-2:15 pm

1 stop10h 30m

Belfast City

Wed 1/28

11:25 am-6:45 pm

1 stop13h 20m

$630

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 1/21

8:45 pm-2:15 pm

1 stop11h 30m

Belfast City

Wed 1/28

6:35 am-5:24 pm

2 stops16h 49m

$641

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 11/26

4:25 pm-9:00 pm

1 stop22h 35m

Belfast City

Tue 12/2

5:20 pm-2:20 pm

1 stop27h 00m

$650

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 1/21

12:05 pm-9:10 am

2 stops15h 05m

Belfast City

Wed 1/28

6:35 am-5:38 pm

2 stops17h 03m

$657

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 11/26

4:25 pm-4:50 pm

1 stop18h 25m

Belfast City

Tue 12/2

5:20 pm-2:20 pm

1 stop27h 00m

$658

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 11/26

3:30 pm-7:30 am

2 stops34h 00m

Belfast City

Tue 12/2

7:25 pm-1:50 pm

1 stop24h 25m

$660

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Sun 3/1

6:30 pm-6:40 pm

2 stops18h 10m

Belfast City

Thu 3/5

6:35 am-5:20 pm

2 stops16h 45m

$662

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Thu 3/5

8:45 pm-4:40 pm

1 stop13h 55m

Belfast City

Thu 3/12

6:35 am-4:25 pm

1 stop14h 50m

$667

ChicagoBelfast

ORD - BHD

ORDBHD

Chicago O'Hare Intl

Wed 12/3

4:25 pm-4:50 pm

1 stop18h 25m

Belfast City

Sun 12/7

6:30 am-6:22 pm

2 stops17h 52m

$727

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 15 resultsSorted by cheapest first
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See travel insights to Belfast from

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport to Belfast

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Belfast?

The cheapest day to depart from Chicago O'Hare Intl Airport to Belfast is on a Wednesday when prices can be found for as low as $649. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Chicago O'Hare Intl Airport to Belfast for around $938.

What is the cheapest time of day to depart on your flight to Belfast?

Our data shows that the cheapest Chicago O'Hare Intl Airport to Belfast flights are usually those with departure times in the evening. Our users have found flights to Belfast in the evening for as low as $769. Try not to purchase tickets in the afternoon because they tend to be around $804. Of course, these prices can vary depending on the time of year and what airport you fly to.

Cheap Chicago O'Hare Intl Airport to Belfast flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Belfast

Direct flights

None
There are no direct flights from Chicago O'Hare Intl Airport to Belfast. There are no popular flight routes from Chicago O'Hare Intl Airport to Belfast.
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  • How far is Chicago O'Hare Intl to Belfast by plane?

    Belfast is 3642.0 mi away from Chicago O'Hare Intl. Typically, this will take 10h 30m by plane in normal conditions.

  • When did momondo last update prices for flights from Chicago O'Hare Intl Airport to Belfast?

    Prices for flights from Chicago O'Hare Intl Airport to Belfast were last updated today.

  • How many operators does momondo search for flights from Chicago O'Hare Intl Airport to Belfast?

  • How old do you have to be to fly from Chicago O'Hare Intl Airport to Belfast?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Chicago O'Hare Intl Airport to Belfast.

  • What documentation or ID do you need to fly to Belfast?

    The necessary travel and health documents for your Belfast trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Chicago O'Hare Intl Airport to Belfast

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Belfast with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom $577Free CancellationRating
6.7
7,399 reviews
Search British Airways flights

Why use momondo?

Why should I use momondo to find a flight deal from Chicago to Belfast?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Chicago to Belfast. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Chicago to Belfast with flexible booking policies on momondo?

momondo does allow users to show only those flights to Belfast from Chicago which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Chicago to Belfast?

momondo provides multiple filters to help you find the best flight to Belfast from Chicago. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Chicago to Belfast right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Chicago to Belfast flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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Find better results for your trip to the United Kingdom

Fly into one of these airports located in Belfast

Airports listed have a maximum distance of 12.2 mi from Belfast
Belfast Intl Airport
Belfast City Airport