ORD - BFS

$301 Find Cheap Flights from Chicago to Belfast Intl Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chicago to Belfast Intl departing on 7/13. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Belfast Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Belfast, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Belfast, as well as popular online travel agencies
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Flights Deals

Cheap Flights from Chicago to Belfast Intl (ORD-BFS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Chicago to Belfast Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Chicago to Belfast Intl

Tue, Jul 29 - Tue, Aug 5
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7:25 pm - 5:15 pmORD-BFS
15h 50m2 stops
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7:45 am - 6:15 pmBFS-ORD
16h 30m2 stops
Tue, Jul 29 - Tue, Aug 5
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10:15 pm - 5:15 pmORD-BFS
13h 00m2 stops
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7:45 am - 6:15 pmBFS-ORD
16h 30m2 stops
Mon, Jul 21 - Mon, Jul 28
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10:40 am - 9:55 pmORD-BFS
29h 15m2 stops
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4:20 pm - 8:16 pmBFS-ORD
33h 56m2 stops
Mon, Jul 21 - Mon, Jul 28
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10:40 am - 10:30 pmORD-BFS
29h 50m2 stops
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4:20 pm - 8:16 pmBFS-ORD
33h 56m2 stops
Mon, Jul 21 - Mon, Jul 28
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2:00 pm - 11:20 amORD-BFS
15h 20m3 stops
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11:45 pm - 8:16 pmBFS-ORD
26h 31m2 stops
Mon, Jul 21 - Mon, Jul 28
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2:00 pm - 11:20 amORD-BFS
15h 20m3 stops
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11:45 pm - 8:16 pmBFS-ORD
26h 31m2 stops
Tue, Jul 29 - Tue, Aug 5
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7:25 pm - 3:00 pmORD-BFS
13h 35m2 stops
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5:55 am - 9:52 amBFS-ORD
33h 57m3 stops
Mon, Jul 21 - Mon, Jul 28
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10:40 am - 9:55 pmORD-BFS
29h 15m2 stops
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4:20 pm - 8:16 pmBFS-ORD
33h 56m2 stops
Tue, Jul 29 - Tue, Aug 5
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7:25 pm - 3:00 pmORD-BFS
13h 35m2 stops
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5:55 am - 3:04 pmBFS-ORD
39h 09m3 stops
Mon, Jul 21 - Mon, Jul 28
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7:25 pm - 10:40 pmORD-BFS
21h 15m2 stops
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6:40 am - 6:15 pmBFS-ORD
17h 35m2 stops
Useful Info

Good to know

Low seasonFebruary
High seasonMarch
Cheapest flight$301
Best time to beat the crowds with an average 21% drop in price.
Most popular time to fly with an average 2% increase in price.
Flight from Chicago to Belfast Intl Airport

When to book flights from Chicago to Belfast Intl

Are your dates flexible? Find out the best times to travel from Chicago to Belfast Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Chicago to Belfast Intl Airport flights

  • What is the cheapest flight from Chicago O'Hare Intl Airport to Belfast Intl Airport?

    In the last 3 days, the lowest price for a flight from Chicago O'Hare Intl Airport to Belfast Intl Airport was $301 for a one-way ticket and $759 for a round-trip.

  • Do I need a passport to fly between Chicago and Belfast Intl Airport?

    Yes

  • Which aircraft models fly most regularly from Chicago to Belfast Intl Airport?

    We unfortunately don’t have that data for this specific route.

  • How does KAYAK find such low prices on flights from Chicago to Belfast Intl Airport?

    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 Chicago to Belfast Intl Airport.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago to Belfast Intl Airport?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Belfast Intl Airport from Chicago 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 Chicago to Belfast Intl Airport?

    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 to Belfast Intl Airport with an airline and back to Chicago with another airline. Booking your flights between Chicago and BFS can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago to Belfast Intl Airport?

    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 to Belfast Intl Airport from Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top airline flying from Chicago to Belfast Intl

 
See real verified KAYAK customer reviews for airlines flying from Chicago to Belfast. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Chicago to Belfast Intl? 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.
6.6
British AirwaysOverall score based on 7019 reviews
7.6Crew
6.7Comfort
6.8Boarding
6.4Entertainment
6.3Food
Airline reviews

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.

2.0 MediocreAnonymous, Jun 2025SFO - LHR
Read more British Airways reviews

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.

Everything you need to know for your flight from Chicago to Belfast Intl

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