How do I get Price Alerts for flights from Chicago O'Hare Intl Airport to Belfast Intl Airport?

Confirm your travel details to search for the latest offers for flights from Chicago O'Hare Intl Airport to Belfast Intl Airport . While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.

How does momondo find its flight prices?

We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

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.

£615 Cheap Flights from Chicago O'Hare Intl Airport to Belfast Intl Airport in 2026/27

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

Return

One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

18:30 - 20:35ORD Chicago O'Hare Intl-BFS Belfast Intl

20h 05m3 stops Reykjavik Keflavik Intl Kastrup Copenhagen London Stansted

21:15 - 17:20BFS Belfast Intl-ORD Chicago O'Hare Intl

26h 05m3 stops London Luton Dublin Reykjavik Keflavik Intl

£615Multiple Airlines

Sun, 6 Dec - Sun, 13 Dec

18:30 - 20:15ORD Chicago O'Hare Intl-BFS Belfast Intl

19h 45m2 stops Reykjavik Keflavik Intl Manchester

15:25 - 15:30BFS Belfast Intl-ORD Chicago O'Hare Intl

30h 05m3 stops London Stansted Barcelona-El Prat Lisbon Humberto Delgado

£617Multiple Airlines

Mon, 30 Nov - Sat, 5 Dec

20:10 - 21:25ORD Chicago O'Hare Intl-BFS Belfast Intl

19h 15m2 stops Lisbon Humberto Delgado London Gatwick

22:00 - 17:20BFS Belfast Intl-ORD Chicago O'Hare Intl

25h 20m3 stops Manchester Dublin Reykjavik Keflavik Intl

£635Multiple Airlines

Sun, 6 Dec - Sun, 13 Dec

18:30 - 18:45ORD Chicago O'Hare Intl-BFS Belfast Intl

18h 15m3 stops Reykjavik Keflavik Intl Dublin Birmingham

19:05 - 15:30BFS Belfast Intl-ORD Chicago O'Hare Intl

26h 25m3 stops London Stansted Barcelona-El Prat Lisbon Humberto Delgado

£646Multiple Airlines

Mon, 30 Nov - Sat, 5 Dec

18:30 - 16:15ORD Chicago O'Hare Intl-BFS Belfast Intl

15h 45m2 stops Reykjavik Keflavik Intl Glasgow Intl

20:55 - 17:20BFS Belfast Intl-ORD Chicago O'Hare Intl

26h 25m3 stops Manchester Kastrup Copenhagen Reykjavik Keflavik Intl

£655Multiple Airlines

Mon, 23 Nov - Tue, 8 Dec

20:10 - 21:25ORD Chicago O'Hare Intl-BFS Belfast Intl

19h 15m2 stops Lisbon Humberto Delgado London Gatwick

19:45 - 14:10BFS Belfast Intl-ORD Chicago O'Hare Intl

24h 25m2 stops Liverpool J. Lennon Dublin

£669Multiple Airlines

Sun, 6 Dec - Sun, 13 Dec

18:30 - 16:15ORD Chicago O'Hare Intl-BFS Belfast Intl

15h 45m2 stops Reykjavik Keflavik Intl Glasgow Intl

08:35 - 17:20BFS Belfast Intl-ORD Chicago O'Hare Intl

14h 45m2 stops Glasgow Intl Reykjavik Keflavik Intl

£703Multiple Airlines

Mon, 23 Nov - Tue, 8 Dec

18:30 - 20:35ORD Chicago O'Hare Intl-BFS Belfast Intl

20h 05m3 stops Reykjavik Keflavik Intl Kastrup Copenhagen London Stansted

17:10 - 14:10BFS Belfast Intl-ORD Chicago O'Hare Intl

27h 00m2 stops Manchester Dublin

£724Multiple Airlines

Sun, 6 Dec - Sun, 13 Dec

20:10 - 21:25ORD Chicago O'Hare Intl-BFS Belfast Intl

19h 15m2 stops Lisbon Humberto Delgado London Gatwick

17:10 - 14:10BFS Belfast Intl-ORD Chicago O'Hare Intl

27h 00m2 stops Manchester Dublin

£729Multiple Airlines

Sun, 6 Dec - Sun, 13 Dec

20:05 - 20:55ORD Chicago O'Hare Intl-BFS Belfast Intl

18h 50m2 stops Dublin Manchester

15:55 - 16:30BFS Belfast Intl-ORD Chicago O'Hare Intl

29h 35m3 stops Birmingham Geneva Geneve-Cointrin Lisbon Humberto Delgado

£750Multiple Airlines

Tue, 9 Mar - Tue, 16 Mar

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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

Cheapest return flight

ChicagoBelfast

ORD Chicago O'Hare Intl - BFS Belfast Intl

ORDBFS

Chicago O'Hare Intl

Sun 6/12

18:30-20:35

3 stops20h 05m

Belfast Intl

Sun 13/12

21:15-17:20

3 stops26h 05m

£615

ChicagoBelfast

ORD Chicago O'Hare Intl - BFS Belfast Intl

ORDBFS

Chicago O'Hare Intl

Mon 30/11

18:30-20:15

2 stops19h 45m

Belfast Intl

Sat 5/12

15:25-15:30

3 stops30h 05m

£617

ChicagoBelfast

ORD Chicago O'Hare Intl - BFS Belfast Intl

ORDBFS

Chicago O'Hare Intl

Sun 6/12

20:10-21:25

2 stops19h 15m

Belfast Intl

Sun 13/12

22:00-17:20

3 stops25h 20m

£635

ChicagoBelfast

ORD Chicago O'Hare Intl - BFS Belfast Intl

ORDBFS

Chicago O'Hare Intl

Mon 30/11

18:30-18:45

3 stops18h 15m

Belfast Intl

Sat 5/12

19:05-15:30

3 stops26h 25m

£646

ChicagoBelfast

ORD Chicago O'Hare Intl - BFS Belfast Intl

ORDBFS

Chicago O'Hare Intl

Mon 23/11

18:30-16:15

2 stops15h 45m

Belfast Intl

Tue 8/12

20:55-17:20

3 stops26h 25m

£655

ChicagoBelfast

ORD Chicago O'Hare Intl - BFS Belfast Intl

ORDBFS

Chicago O'Hare Intl

Sun 6/12

20:10-21:25

2 stops19h 15m

Belfast Intl

Sun 13/12

19:45-14:10

2 stops24h 25m

£669

Fastest return journey

ChicagoBelfast

ORD Chicago O'Hare Intl - BFS Belfast Intl

ORDBFS

Chicago O'Hare Intl

Mon 23/11

18:30-16:15

2 stops15h 45m

Belfast Intl

Tue 8/12

08:35-17:20

2 stops14h 45m

£703

ChicagoBelfast

ORD Chicago O'Hare Intl - BFS Belfast Intl

ORDBFS

Chicago O'Hare Intl

Sun 6/12

18:30-20:35

3 stops20h 05m

Belfast Intl

Sun 13/12

17:10-14:10

2 stops27h 00m

£724

ChicagoBelfast

ORD Chicago O'Hare Intl - BFS Belfast Intl

ORDBFS

Chicago O'Hare Intl

Sun 6/12

20:10-21:25

2 stops19h 15m

Belfast Intl

Sun 13/12

17:10-14:10

2 stops27h 00m

£729

ChicagoBelfast

ORD Chicago O'Hare Intl - BFS Belfast Intl

ORDBFS

Chicago O'Hare Intl

Tue 9/3

20:05-20:55

2 stops18h 50m

Belfast Intl

Tue 16/3

15:55-16:30

3 stops29h 35m

£750

Flights are sorted by cheapest return flights first.

Sorted by cheapest first

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

Best price found	£615
Fastest flight time	14h 45m
Direct flights	None

The best flight deal from Chicago O'Hare Intl Airport to Belfast Intl Airport found on momondo in the last 72 hours is £615

The fastest flight from Chicago O'Hare Intl Airport to Belfast Intl Airport takes 14h 45m

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.

Search flight deals

Frequently asked questions about flying from Chicago O'Hare Intl Airport to Belfast Intl Airport

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 14h 45m 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.

Frequently asked questions about flying from Chicago O'Hare Intl Airport to Belfast Intl Airport

How do I get Price Alerts for flights from Chicago O'Hare Intl Airport to Belfast Intl Airport?
Confirm your travel details to search for the latest offers for flights from Chicago O'Hare Intl Airport to Belfast Intl Airport. While browsing offers there will be the option to toggle “Price Alerts”. You’ll then receive updates when prices for the flight route increase or decrease.
How can I save money on flights from Chicago O'Hare Intl Airport to Belfast Intl Airport with momondo?
Plan your trips smart with the “Price Forecast” feature, which uses flight data to help you pick the best days to fly for the lowest fares. Our “Price Calendar” helps you get the most for your money by showing you when it’s most advantageous to fly. Curate your own travel experiences for less with “Explore”. Expert travel hacks to fuel your next adventure are a click away with “Discover” by momondo. Set up our “Price Alerts” to track fare changes and book when prices are at their lowest point.
How does momondo find its flight prices?
We aggregate our prices from over 700+ competitors from airlines to OTAs. We operate in over 30 markets worldwide to show you a wide range of travel options.

Ballymena

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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.