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Cheap flights from Chicago O'Hare Intl Airport to Belfast from £214

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 15/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags
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Find the cheapest flights from Chicago O'Hare Intl Airport to Belfast

Cheap return flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
14:31 - 20:15ORD-BFS
23h 44m3 stops
Multiple Airlines Logo
18:25 - 15:00BFS-ORD
26h 35m3 stops
£468Multiple Airlines
Find Deal
Mon, 10 Nov - Tue, 25 Nov
Multiple Airlines Logo
18:30 - 17:55ORD-BFS
17h 25m2 stops
Multiple Airlines Logo
09:25 - 17:20BFS-ORD
13h 55m2 stops
£493Multiple Airlines
Find Deal
Wed, 3 Dec - Sun, 7 Dec
Multiple Airlines Logo
18:30 - 20:40ORD-BFS
20h 10m2 stops
Multiple Airlines Logo
07:20 - 17:20BFS-ORD
16h 00m2 stops
£495Multiple Airlines
Find Deal
Wed, 12 Nov - Wed, 19 Nov
Multiple Airlines Logo
18:30 - 22:20ORD-BFS
21h 50m2 stops
Multiple Airlines Logo
06:30 - 17:20BFS-ORD
16h 50m2 stops
£500Multiple Airlines
Find Deal
Wed, 26 Nov - Wed, 3 Dec
Multiple Airlines Logo
10:00 - 13:35ORD-BFS
21h 35m3 stops
Multiple Airlines Logo
06:00 - 18:25BFS-ORD
18h 25m2 stops
£545Multiple Airlines
Find Deal
Wed, 26 Nov - Wed, 3 Dec
Multiple Airlines Logo
18:30 - 20:30ORD-BFS
20h 00m2 stops
Multiple Airlines Logo
08:55 - 18:10BFS-ORD
39h 15m2 stops
£581Multiple Airlines
Find Deal
Sun, 1 Mar - Sat, 8 Aug
Multiple Airlines Logo
14:31 - 20:15ORD-BFS
23h 44m3 stops
Multiple Airlines Logo
20:55 - 15:00BFS-ORD
24h 05m2 stops
£587Multiple Airlines
Find Deal
Mon, 10 Nov - Tue, 25 Nov
Multiple Airlines Logo
19:10 - 22:50ORD-BFS
21h 40m3 stops
Multiple Airlines Logo
18:25 - 10:05BFS-ORD
45h 40m3 stops
£625Multiple Airlines
Find Deal
Wed, 12 Nov - Wed, 19 Nov
Multiple Airlines Logo
11:50 - 21:10ORD-BFS
27h 20m2 stops
Multiple Airlines Logo
07:15 - 10:05BFS-ORD
32h 50m2 stops
£648Multiple Airlines
Find Deal
Mon, 10 Nov - Tue, 25 Nov
Multiple Airlines Logo
07:05 - 21:55ORD-BFS
32h 50m3 stops
Multiple Airlines Logo
17:15 - 13:10BFS-ORD
25h 55m2 stops
£657Multiple Airlines
Find Deal
Wed, 3 Dec - Sun, 7 Dec

momondo Fare Finder

 
Customise your flight search to find flights from Chicago O'Hare Intl Airport to Belfast Intl Airport 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 279,928 searches. Data last updated 13 October 2025.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Belfast Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Mon 10/11

14:31-20:15

3 stops23h 44m

Belfast Intl

Tue 25/11

18:25-15:00

3 stops26h 35m

£468

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Wed 3/12

18:30-17:55

2 stops17h 25m

Belfast Intl

Sun 7/12

09:25-17:20

2 stops13h 55m

£493

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Wed 12/11

18:30-20:40

2 stops20h 10m

Belfast Intl

Wed 19/11

07:20-17:20

2 stops16h 00m

£495

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Wed 26/11

18:30-22:20

2 stops21h 50m

Belfast Intl

Wed 3/12

06:30-17:20

2 stops16h 50m

£500

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Wed 26/11

10:00-13:35

3 stops21h 35m

Belfast Intl

Wed 3/12

06:00-18:25

2 stops18h 25m

£545

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Sun 1/3

18:30-20:30

2 stops20h 00m

Belfast Intl

Sat 8/8

08:55-18:10

2 stops39h 15m

£581

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Mon 10/11

14:31-20:15

3 stops23h 44m

Belfast Intl

Tue 25/11

20:55-15:00

2 stops24h 05m

£587

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Wed 12/11

19:10-22:50

3 stops21h 40m

Belfast Intl

Wed 19/11

18:25-10:05

3 stops45h 40m

£625

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Mon 10/11

11:50-21:10

2 stops27h 20m

Belfast Intl

Tue 25/11

07:15-10:05

2 stops32h 50m

£648

ChicagoBelfast

ORD - BFS

ORDBFS

Chicago O'Hare Intl

Wed 3/12

07:05-21:55

3 stops32h 50m

Belfast Intl

Sun 7/12

17:15-13:10

2 stops25h 55m

£657

Flights are sorted by cheapest return flights first.

Showing 1-10 of 14 resultsSorted by cheapest first
1
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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 Intl Airport

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 typical price of a round-trip flight between Chicago O'Hare Intl Airport and Belfast Intl Airport?

When to book flights from Chicago O'Hare Intl Airport to Belfast Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago O'Hare Intl Airport to Belfast Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated return price

Cheap Chicago O'Hare Intl Airport to Belfast Intl Airport (ORD to BFS) flight deals and tips

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

Direct flights

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

    Chicago O'Hare Intl and Belfast Intl are 3629.9 mi apart from one another. Typically, this will take 17h 10m by plane in normal conditions.

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

    Prices for flights from Chicago O'Hare Intl Airport to Belfast Intl Airport are refreshed on a daily basis.

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago O'Hare Intl Airport to Belfast Intl Airport.

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

    The travel and health documents you'll need for your trip to Belfast Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Belfast Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Travelling to a place near Belfast?

Book flights to Belfast if you plan to visit one of these locations
Ballymena
Newry
Armagh
Cookstown
Dungannon
Portadown

Why use momondo?

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

It is quick and easy to find Chicago to Belfast flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Belfast that suits you.

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

Yes. momondo allows you to filter the results for Chicago to Belfast flights to just show those with flexible booking policies.

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

Once all potential Chicago to Belfast flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Price alerts on flights to Belfast from Chicago are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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