For a quick departure, use the free shuttle train between terminals at ORD, especially if your flight is from Terminal 5.

Most accurate provider | Gotogate 3 stars |
|---|---|
Most trusted provider | Gotogate 3 stars |
Round-trip from | $422 (United Airlines) |
One-way from | $227 (Booking.com) |
Popular in | June |
Cheapest in | February |
Average price | $564 |
Good round-trip deal | $573 or less |
Good one-way deal | $400 or less |
Fly from
Fly to
Route
Depart
Return
Price
ChicagoDublin
ORD - DUB
ORDDUB
Chicago O'Hare Intl
Mon 3/23
10:45 pm-7:40 pm
1 stop15h 55m
Dublin
Tue 3/31
10:30 am-6:15 pm
1 stop13h 45m
ChicagoDublin
ORD - DUB
ORDDUB
Chicago O'Hare Intl
Tue 3/31
9:15 pm-2:50 pm
1 stop11h 35m
Dublin
Wed 4/29
7:30 am-1:50 pm
1 stop12h 20m
ChicagoDublin
ORD - DUB
ORDDUB
Chicago O'Hare Intl
Mon 2/2
7:20 pm-10:45 am
2 stops33h 25m
Dublin
Thu 2/5
11:30 am-4:45 pm
2 stops35h 15m
ChicagoDublin
ORD - DUB
ORDDUB
Chicago O'Hare Intl
Sun 3/22
6:20 pm-2:20 pm
2 stops15h 00m
Dublin
Tue 3/31
11:15 am-5:35 pm
1 stop12h 20m
ChicagoDublin
ORD - DUB
ORDDUB
Chicago O'Hare Intl
Sat 2/7
3:37 pm-5:15 am
1 stop31h 38m
Dublin
Mon 2/16
7:45 pm-1:50 pm
1 stop24h 05m
ChicagoDublin
MDW - DUB
MDWDUB
Chicago Midway
Mon 4/20
2:12 pm-7:55 am
1 stop11h 43m
Dublin
Fri 5/1
10:00 am-6:45 pm
1 stop14h 45m
ChicagoDublin
MDW - DUB
MDWDUB
Chicago Midway
Wed 4/8
2:05 pm-7:55 am
1 stop11h 50m
Dublin
Wed 4/15
10:00 am-6:45 pm
1 stop14h 45m
ChicagoDublin
MDW - DUB
MDWDUB
Chicago Midway
Wed 2/25
10:49 am-8:45 am
2 stops15h 56m
Dublin
Thu 3/5
9:45 am-5:45 pm
1 stop14h 00m
ChicagoDublin
MDW - DUB
MDWDUB
Chicago Midway
Wed 4/1
2:05 pm-7:55 am
1 stop11h 50m
Dublin
Wed 4/8
10:00 am-6:40 pm
1 stop14h 40m
ChicagoDublin
MDW - DUB
MDWDUB
Chicago Midway
Tue 4/21
2:12 pm-7:55 am
1 stop11h 43m
Dublin
Tue 4/28
10:00 am-6:45 pm
1 stop14h 45m
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars | |
| Price Accuracy3 stars | Trust Score*2 stars | |
| Price Accuracy- | Trust Score*1 star |
The price you pay for your flight from Chicago to Dublin may vary depending on when you book. For the best chance of a lower fare, look to book 10 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Currently, January is the cheapest month in which you can book a flight from Chicago to Dublin (average of $354). Flying from Chicago to Dublin in June is currently the most expensive (average of $671). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Chicago to Dublin as you normally would.
The most flights from CHI to DUB are scheduled on a Monday (10 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (9 on average).
London (LHR) – chosen by Cheapflights users on 50% of 1-stop itineraries from Chicago to Dublin on Cheapflights.
Lisbon (LIS) is the most affordable 1-stop option, with an average round-trip price of $492.
Flights via London (LHR) have the shortest average one-way travel time for 1-stop routes: 10h 35m.
Flights via Lisbon (LIS) offer the fastest connection on this route, with an average layover time of 5h 40m.
About 21% of weekly flights between Chicago and Dublin have experienced delays in the past year, with the average delay time being 153 minutes.
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.
Tuesday tends to have the lowest number of delays on this route, whereas Wednesday has historically faced a higher average of delays compared to other days of the week.
Over the last year, Aer Lingus have had the lowest number of delays on this route, with just 19% of flights being delayed.
Entertainment
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Reviews
Dane,Jan 2026
TYS - IAD
Entertainment
Overall
Comfort
Crew
Boarding
Food
Reviews
Dane,Jan 2026
TYS - IAD
Entertainment
Overall
Comfort
Crew
Boarding
Food
Reviews
Dane,Jan 2026
TYS - IAD
Entertainment
Overall
Comfort
Crew
Boarding
Food
Reviews
Dane,Jan 2026
TYS - IAD
Entertainment
Overall
Comfort
Crew
Boarding
Food
Reviews
Dane,Jan 2026
TYS - IAD
Entertainment
Overall
Comfort
Crew
Boarding
Food
Reviews
Dane,Jan 2026
TYS - IAD
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$51 | Average$568 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$344 | Average$539 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$393 | Average$505 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$400 | Average$471 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$469 | Average$706 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$473 | Average$770 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$487 | Average$817 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$488 | Average$703 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$498 | Average$687 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$499 | Average$831 | FlexibilityNo cancel fee | On-time76% |