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Cheap flights from Illinois to Belfast from £342

ORD — BHD
18 Sep — 25 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Illinois to Belfast

Enter your travel dates to find the best prices.

Cheapest flights from Illinois to Belfast

Sun 4/1019:25 -
2 stops20h 25m
Wed 14/1020:10 -
3 stops28h 05m
Deal found 15/8£555
Sun 13/919:25 -
2 stops20h 25m
Tue 29/907:35 -
3 stops38h 25m
Deal found 17/8£603
Wed 30/919:25 -
2 stops19h 45m
Wed 7/1009:35 -
2 stops33h 05m
Deal found 16/8£607
Mon 28/919:25 -
2 stops19h 30m
Mon 5/1009:10 -
2 stops35h 05m
Deal found 14/8£608
Sun 15/1117:10 -
1 stop11h 35m
Thu 19/1107:40 -
1 stop12h 05m
Deal found 16/8£662
Wed 30/919:25 -
2 stops14h 05m
Wed 7/1007:00 -
2 stops20h 25m
Deal found 16/8£666
Mon 23/1116:25 -
1 stop10h 45m
Wed 2/1217:20 -
1 stop27h 05m
Deal found 17/8£669
Mon 23/1116:25 -
1 stop18h 25m
Fri 27/1109:40 -
2 stops16h 45m
Deal found 17/8£676
Sun 4/1021:15 -
1 stop11h 20m
Wed 14/1006:30 -
1 stop13h 20m
Deal found 15/8£686
Wed 30/922:25 -
1 stop14h 20m
Wed 7/1006:30 -
1 stop12h 00m
Deal found 16/8£695
Fri 9/1022:25 -
2 stops16h 05m
Tue 20/1007:50 -
3 stops41h 25m
Deal found 18/8£698
Thu 26/1117:10 -
1 stop13h 35m
Thu 3/1207:40 -
1 stop12h 05m
Deal found 17/8£699

Find flight deals from Illinois to Belfast

Round-trip from

£555

One-way from

£342
4/10-14/10
  • 4/10-14/10
  • 5 total stops
  • 48h 30m total
  • Illinois to Belfast
Search Deals
Aer Lingus
  • Aer Lingus
  • 8/9
  • 2 total stops
  • 17h 55m total
  • Illinois to Belfast
Search Deals

Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Illinois to Belfast that are best for you.

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Route

Depart

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Cheapest return flight

ChicagoBelfast

ORD Chicago O'Hare Intl - BFS Belfast Intl

ORDBFS

Chicago O'Hare Intl

Sun 4/10

19:25-21:50

2 stops20h 25m

Belfast Intl

Wed 14/10

20:10-18:15

3 stops28h 05m

£555

ChicagoBelfast

ORD Chicago O'Hare Intl - BFS Belfast Intl

ORDBFS

Chicago O'Hare Intl

Sun 13/9

19:25-21:50

2 stops20h 25m

Belfast Intl

Tue 29/9

07:35-16:00

3 stops38h 25m

£603

ChicagoBelfast

ORD Chicago O'Hare Intl - BFS Belfast Intl

ORDBFS

Chicago O'Hare Intl

Wed 30/9

19:25-21:10

2 stops19h 45m

Belfast Intl

Wed 7/10

09:35-12:40

2 stops33h 05m

£616
Fastest return journey

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Sun 15/11

17:10-10:45

1 stop11h 35m

Belfast City

Thu 19/11

07:40-13:45

1 stop12h 05m

£662

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Wed 30/9

19:25-15:30

2 stops14h 05m

Belfast City

Wed 7/10

07:00-21:25

2 stops20h 25m

£666

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Wed 25/11

11:29-09:10

2 stops15h 41m

Belfast City

Wed 2/12

17:20-14:25

1 stop27h 05m

£672

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Mon 23/11

16:25-16:50

1 stop18h 25m

Belfast City

Fri 27/11

09:40-20:25

2 stops16h 45m

£676

ChicagoBelfast

ORD Chicago O'Hare Intl - BFS Belfast Intl

ORDBFS

Chicago O'Hare Intl

Mon 14/9

19:25-16:15

2 stops14h 50m

Belfast Intl

Tue 29/9

06:40-16:00

3 stops39h 20m

£689

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Sun 4/10

20:50-14:35

1 stop11h 45m

Belfast City

Wed 14/10

06:30-16:50

2 stops16h 20m

£701

ChicagoBelfast

ORD Chicago O'Hare Intl - BHD Belfast City

ORDBHD

Chicago O'Hare Intl

Sat 28/11

17:13-16:50

2 stops17h 37m

Belfast City

Wed 2/12

17:20-14:25

1 stop27h 05m

£709

Flights are sorted by cheapest return flights first.

Deals found on 19/8

Showing 1-10 of 36 resultsSorted by cheapest first
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Best time to book a flight from Illinois to Belfast

Have a flexible travel schedule? Discover the best time to fly to Belfast from Illinois with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Illinois to Belfast

No data available for this route at this time. Please check back soon.

Related info for your journey

  • How long is the flight from Illinois to Belfast?

    For as low as £669, British Airways can have you in Belfast from Illinois in 10h 45m. Airlines will cover a distance of 3644 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most popular routes from Illinois to Belfast?

    The most popular route from Illinois to Belfast is Chicago O'Hare Intl - Belfast Intl. You may also consider Chicago O'Hare Intl - Belfast City or Chicago Midway - Belfast Intl.

  • Can I find deals for flights from Illinois to Belfast that include hotel bookings?

    Yes. In addition to deals on Illinois to Belfast flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Belfast?

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

  • Can I find deals for business class flights from Illinois to Belfast?

    Yes. Cheapflights offers flight deals from Illinois 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.

See more FAQs

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Deals for Illinois to Belfast flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets from Illinois to Belfast?

Cheapflights helps you find that perfect flight to Belfast from Illinois by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from Illinois to Belfast with no change fees?

Need flexible booking options for your flight to Belfast from Illinois? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

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Yes! Start tracking prices for Illinois to Belfast flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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