$301 Find Cheap Flights from Illinois to Northern Ireland

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Cheapest flight$301
Flight from Chicago to Belfast Intl Airport

FAQs for booking flights from Illinois to Northern Ireland

  • How does KAYAK find such low prices on flights from Illinois to Northern Ireland?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Northern Ireland.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Northern Ireland?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Illinois to Northern Ireland is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Illinois to Northern Ireland?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Illinois to Northern Ireland with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Northern Ireland?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Illinois to Northern Ireland up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest day to fly to Northern Ireland?

    Based on KAYAK data, the cheapest day to fly to Northern Ireland is Sunday where round-trip tickets can be as cheap as $718. On the other hand, the most expensive day to fly is Thursday, where round-trip prices are $853 on average.

  • What is the cheapest time of day to fly to Northern Ireland?

    The cheapest time of day to fly to Northern Ireland is generally at night, when round-trip flights cost $751 on average. Morning departures are around 100% cheaper than evening flights, on average. The most expensive time of day to fly to Northern Ireland is generally in the evening, which is peak travel time and where the average cost of a ticket is $782.

  • How long is the flight to Northern Ireland?

    An average nonstop flight from Illinois to Northern Ireland takes 15h 20m, covering a distance of 3721 miles. The shortest route is Chicago O'Hare Intl Airport (ORD) to Belfast Intl Airport (BFS) with an average flight time of 11h 50m.

  • What is the most popular destination in Northern Ireland?

    Based on KAYAK flight searches, the most popular destination is Belfast (100% of total searches to Northern Ireland).

Top airlines flying from Illinois to Northern Ireland

 
Need help choosing which airline to fly with from Illinois to Northern Ireland? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.2
American AirlinesOverall score based on 10000 reviews
7.2Comfort
8.0Crew
6.5Food
6.9Entertainment
7.5Boarding
Airline reviews

I have long legs, my foot was out in the aisle and when a flight attendant came walking by and I didn't notice, instead of saying "excuse me" or anything like that, she kicked my foot. Extremely rude

6.0 GoodAnonymous, Mar 2025ORD - CLT
Read more American Airlines reviews

I have long legs, my foot was out in the aisle and when a flight attendant came walking by and I didn't notice, instead of saying "excuse me" or anything like that, she kicked my foot. Extremely rude

Excellent! The gate agents were kind enough to rebook me on an earlier flight saving me from a 6 hour layover. Even my luggage made it despite the fact that the connection was technically too narrow. The flight itself was very comfortable, roomy, and clean. Plenty of space for my carryon items with plugs to charge my phone. After a long international flight of 14 hours, this was an excellent way to end my travels!

Great experience. Flight boarded easily. Departed early. Smooth flight. Great arrival in DC--almost no taxing! Almost direct to gate from runway. Crew was terrific. Same cookies and beverages in main cabin. I did not use the entertainment system on this flight.

This particular flight wasn't very full at the back, so there were three seats available for spreading out and getting relatively comfortable

Most of the delay was due to weather which is not what was at issue here. One delay was due to a missing flashlight and in the end the flashlight was actually found on the plane. The entertainment system is very limited. Live TV options offer only a few channels that are not very appealing. Boarding and deplaning are always difficult. It just takes too much time to get on and off the plane. On the plus side, I missed my connecting flight, but was easily able to book a later flight from the app while enroute.

You were more on time than United. I'm so over united delays.

The meals were mediocre and the alcohol selection was poor. I enjoyed the selection of movies and other entertainment.

I chatted with the captain before the flight, and similarly during the welcome announcement, he warned of a turbulent flight that may impact the in-flight service. However, once at altitude, he announced that the weather changed and he immediately turned off the seatbelt sign. But it appeared the cabin crew had already decided to take off this flight. They remained seated and then just chatted in the galley. The flight was fully catered, but only first class received service.

My flight attendant was attentive! The elderly person next to me was flatulent and the flight attendant could see that I was in distress and brought me some face masks

My boarding pass wouldn't pull up in the app very easily and had to really dig through my email. That caused a delay in TSA..

This was the second time on BA, food terrible, bathrooms gross,( granted, that was mostly due to the disgusting children urinating all over it)boarding was late and disorganized. No gate issued until last minute st Heathrow, bad system, caused undue stress. Seats were painful, that's what you get for traveling like a poor in economy, right BA? Should have been able to afford business or first class if you want to actually be able to walk upright without back pain after a trip.

This was the second time on BA, food terrible, bathrooms gross, boarding late and disorganized. No gate issued until last minute st Heathrow, bad system, caused undue stress.

The flight was delayed twice and because of that, we missed our connecting flight. British Airways then attempted to put us on the last flight to Milan from London which would have kept us in the airport for 12 hours. We had to speak to several levels of bureaucracy until BA management let us fly on a flight that only kept us in the airport for two hours. If there was an earlier flight, why weren’t we put on that flight from the start? Unacceptable behavior from what was once my favorite carrier.

The payment system was not working so was unable to connect wifi the entire flight

everything to do with KAYAK was terrible. Your customer facing departments are utterly useless, timewasting and unhelpful.

I ordered short ribs for main course. It tasted sweet, really sweet. Horrible.

The screen didn’t work and I didn’t get the seat upgrade I paid $300 for. They were no help with that,

Paid $180 for seat selection, and selection essnt honored. Have to call for a refund.

My flights were great and the crew on them was lovely especially the London to Barcelona flight as Al & AJ were so amazingly nice. I wish they would be my crew always as they have the best customer service. Sadly both flights were delayed the first one from Vegas was because they clearly loaded the cargo wrong the plane was off balance making us 2 hours late. This made me miss my connection and sadly it was challenging rebooking while I was on the flight. I will never use Kayak again as there was no customer service number or live chat and you rebooked me on a flight 2 days later. I had my mom call BA to change it which she did after spending an hour on hold. This should not be so difficult. My second flight was an hour delayed due to not being able to disconnect the bridge from the plane but I did finally make it home.

The delay was not communicated via text and the person who helped with check in also didn’t inform me about the delay. I ended up missing my connection and it was a waste of 5 hours. The crew didn’t mention there would be someone at the gate informing of if I would be rebooked and there was no signage. Overall a very poor experience. The British Airways app was also very buggy, and didn’t work. I will avoid flying with British Airways when possible.

Book cheap flights from Illinois to Northern Ireland

Recent round-trip flight deals

9/9Tue
1 stopAmerican Airlines
14h 50mORD-BHD
9/16Tue
1 stopAmerican Airlines
12h 20mBHD-ORD
$631
9/9Tue
2 stopsBritish Airways
16h 19mORD-BHD
9/16Tue
1 stopBritish Airways
21h 30mBHD-ORD
$637
9/9Tue
2 stopsBritish Airways
16h 38mORD-BHD
9/16Tue
2 stopsBritish Airways
25h 25mBHD-ORD
$654
8/21Thu
1 stopAmerican Airlines
14h 45mORD-BHD
9/4Thu
1 stopAmerican Airlines
11h 35mBHD-ORD
$681
7/24Thu
2 stopsDelta
15h 54mORD-BHD
8/21Thu
2 stopsDelta
21h 05mBHD-ORD
$772
7/24Thu
2 stopsKLM
20h 45mMDW-BHD
8/21Thu
2 stopsKLM
21h 19mBHD-MDW
$772
7/30Wed
1 stopVirgin Atlantic
22h 25mORD-BHD
8/6Wed
2 stopsVirgin Atlantic
21h 38mBHD-ORD
$774
7/29Tue
1 stopVirgin Atlantic
22h 45mORD-BHD
8/5Tue
1 stopVirgin Atlantic
27h 15mBHD-ORD
$781
7/30Wed
2 stopsDelta
20h 55mORD-BHD
8/6Wed
2 stopsDelta
21h 33mBHD-ORD
$867
7/29Tue
2 stopsKLM
16h 35mMDW-BHD
8/5Tue
2 stopsKLM
15h 40mBHD-MDW
$3,112

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Recent one-way flight deals

7/13Sun
3 stops
47h 54mORD-BFS
$301
7/13Sun
2 stops
58h 29mORD-BHD
$306
7/13Sun
3 stops
38h 00mORD-BHD
$307
7/13Sun
2 stops
31h 40mMDW-BFS
$312
7/13Sun
2 stops
29h 30mMDW-BHD
$336
8/20Wed
1 stopAmerican Airlines
13h 00mORD-BHD
$380
8/20Wed
2 stopsBritish Airways
15h 18mORD-BHD
$395
8/20Wed
2 stopsDelta
21h 12mMDW-BHD
$433
7/13Sun
1 stopBritish Airways
11h 25mORD-BHD
$456
7/26Sat
2 stopsKLM
17h 02mMDW-BHD
$4,151

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Last minute flights from Illinois to Northern Ireland

Last minute flight, train and bus deals

6/18Wed
multi-stopBritish Airways
13h 56mSTL-BHD
6/20Fri
multi-stopBritish Airways
15h 47mBHD-STL
$2,796
6/18Wed
multi-stop
18h 25mSTL-BHD
6/20Fri
multi-stop
34h 02mBHD-STL
$3,082
6/18Wed
multi-stop
17h 15mSTL-BHD
6/20Fri
multi-stop
31h 17mBHD-STL
$3,379

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Everything you need to know for your flight to Northern Ireland

Cabin class types available on flights to Illinois

Cabin classes available on flights to Illinois. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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