$346 Find Cheap Flights from Chicago to Belfast

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 departing on 4/13. 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, 0 bags

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

 
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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Everything you should know

Cheapest round-trip
$652
British Airways
Mon 3/9Mon 3/16
ORD - BHD • 1 stop
Cheapest one-way
$346
Aer Lingus
Mon 4/13
ORD - BHD • 2 stops
Top airlines
British Airways
Cheapest • from $652 (round-trip)
British Airways
Best reviews • 6.7 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
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Booking Insights
Flight Deals

Cheap Flights from Chicago to Belfast (ORD-BHD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Chicago to Belfast 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

Mon, Mar 9 - Mon, Mar 16
British Airways Logo
6:10 pm - 10:40 am
ORD
-
BHD
11h 30m
1 stop
British Airways Logo
7:25 pm - 2:50 pm
BHD
-
ORD
24h 25m
1 stop
$652British Airways
Mon, Mar 9 - Mon, Mar 16
British Airways Logo
6:10 pm - 10:40 am
ORD
-
BHD
11h 30m
1 stop
British Airways Logo
7:25 pm - 6:00 pm
BHD
-
ORD
27h 35m
2 stops
$675British Airways
Mon, Mar 9 - Mon, Mar 16
British Airways Logo
9:48 am - 2:15 pm
ORD
-
BHD
23h 27m
2 stops
British Airways Logo
7:25 pm - 6:00 pm
BHD
-
ORD
27h 35m
2 stops
$676British Airways
Fri, Feb 20 - Fri, Feb 27
American Airlines Logo
6:30 pm - 2:15 pm
ORD
-
BHD
13h 45m
1 stop
American Airlines Logo
8:45 am - 5:00 pm
BHD
-
ORD
14h 15m
1 stop
$709American Airlines
Fri, Feb 20 - Fri, Feb 27
American Airlines Logo
1:39 pm - 10:30 am
ORD
-
BHD
14h 51m
2 stops
American Airlines Logo
8:45 am - 5:00 pm
BHD
-
ORD
14h 15m
1 stop
$714American Airlines
Wed, Mar 4 - Sun, Mar 8
British Airways Logo
5:10 pm - 7:30 am
ORD
-
BHD
32h 20m
1 stop
British Airways Logo
8:25 pm - 7:45 pm
BHD
-
ORD
28h 20m
1 stop
$719British Airways
Sun, Mar 8 - Mon, Mar 16
KLM Logo
5:25 pm - 9:00 pm
ORD
-
BHD
22h 35m
1 stop
KLM Logo
6:30 am - 3:20 pm
BHD
-
ORD
13h 50m
1 stop
$724KLM
Mon, Mar 9 - Sun, Mar 15
KLM Logo
5:40 pm - 4:45 pm
ORD
-
BHD
18h 05m
2 stops
KLM Logo
5:20 pm - 3:20 pm
BHD
-
ORD
27h 00m
1 stop
$728KLM
Fri, Feb 27 - Fri, Mar 6
Multiple Airlines Logo
4:05 pm - 3:10 pm
ORD
-
BFS
17h 05m
2 stops
Multiple Airlines Logo
6:30 am - 11:22 am
BFS
-
ORD
34h 52m
3 stops
$796Multiple Airlines
Sun, Mar 15 - Sun, Mar 22
Multiple Airlines Logo
5:05 pm - 6:55 pm
ORD
-
BFS
20h 50m
2 stops
Multiple Airlines Logo
7:30 am - 2:25 pm
BFS
-
ORD
35h 55m
2 stops
$883Multiple Airlines
Booking Insights

KAYAK's insights & trends for Chicago to Belfast flights

Get data-powered insights and trends into flights from Chicago to Belfast to help you find the cheapest flights, the best time to fly and much more.

Which airlines provide the cheapest flights from Chicago to Belfast?

The cheapest round-trip price for the route for each airline clicked by KAYAK users in the last 72 hours.

In the past 3 days, the cheapest round-trip tickets from Chicago to Belfast were found on British Airways ($652) and American Airlines ($709).

Find deals

Good to know

Cheapest flight$346
Flight from Chicago O'Hare Airport to Belfast City Airport

When to book flights from Chicago to Belfast

Are your dates flexible? Find out the best times to travel from Chicago to Belfast 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 flights

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

    In the last 3 days, the lowest price for a flight from Chicago O'Hare Intl Airport to Belfast was $346 for a one-way ticket and $652 for a round-trip.

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

    Yes

  • Which airports will I be using when flying from Chicago to Belfast?

    On your way to Belfast, you’ll fly out from Chicago O'Hare Intl. You’ll be landing in one of Belfast’s 2 airports: Belfast Intl or Belfast City.

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

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

  • Which airline alliances offer flights from Chicago to Belfast?

    oneworld is the only airline alliance operating flights between Chicago and Belfast.

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

    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.

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

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

    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 with an airline and back to Chicago with another airline.

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

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

Reviews of the top airline flying from Chicago to Belfast

 
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? 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.
6.7
British AirwaysOverall score based on 7706 reviews
6.4Entertainment
7.6Crew
6.4Food
6.9Boarding
6.8Comfort
Airline reviews

The issue was not with BA it was with the link yoiu sent fopr booking the flight

2.0 MediocreAnonymous, Jan 2026
LAX - LHR
Read more British Airways reviews

The issue was not with BA it was with the link yoiu sent fopr booking the flight

Loved the boarding option from Business class lounge, experience on flight was excellent, plenty of good food choices

The airline was not clear about a new departure time so we got to the airport early anyway. The flight left early which was great because of weather. The check in process was very easy and staff were friendly and helpful. The crew was great and our flight was very good.

Awful it always is unfortunately is the only way to fly direct to london

I travelled in business class and was disappointed by lack of service, curt and borderline rude time of the crew and to top it off, all of my luggage was delayed. It was like pulling teeth to even report the missing luggage and recover it the next day from the airport.

Boarding was poor. All groups called immediately one after the other resulting in a long queue in the jetty/jet bridge. Seats were very hard and and did not recline on a 4.5 hour flight. No food was available. Plane was cold. There was no entertainment.

The cramped seats are cruel and unusual punishment and may violate the Geneva code.

Check in was was and the agent was very friendly and helpful The lounge was nice...boarding was straight from the lounge Everything worked at our seats, and video entertainment was good ..food was mediocre

The flight was excellent in World Travellor plus. Well worth the extra money. Boarding at Phoenix was the usual poorly organized event. Very stressful.

Although business class, the seating was really cramped. The food was so so.

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

Information on your arrival and departure airports

Chicago (ORD)