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 | $419 (FlightHub) |
One-way from | $226 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $825 |
Good round-trip deal | $600 or less |
Good one-way deal | $416 or less |
Fly from
Fly to
Route
Depart
Return
Price
ChicagoDublin
ORD - DUB
ORDDUB
Chicago O'Hare Intl
Wed 1/21
7:20 pm-6:20 pm
1 stop17h 00m
Dublin
Sat 1/24
10:10 am-4:45 pm
1 stop12h 35m
ChicagoDublin
ORD - DUB
ORDDUB
Chicago O'Hare Intl
Sat 2/28
7:20 pm-6:20 pm
1 stop17h 00m
Dublin
Wed 3/4
11:30 am-4:45 pm
2 stops35h 15m
ChicagoDublin
ORD - DUB
ORDDUB
Chicago O'Hare Intl
Tue 1/20
6:35 pm-8:10 am
Nonstop7h 35m
Dublin
Wed 1/28
9:00 am-10:06 am
1 stop31h 06m
ChicagoDublin
ORD - DUB
ORDDUB
Chicago O'Hare Intl
Sun 1/18
6:35 pm-8:10 am
Nonstop7h 35m
Dublin
Wed 1/28
9:00 am-3:10 pm
1 stop12h 10m
ChicagoDublin
ORD - DUB
ORDDUB
Chicago O'Hare Intl
Wed 1/21
6:35 pm-8:10 am
Nonstop7h 35m
Dublin
Wed 1/28
10:40 am-1:30 pm
Nonstop8h 50m
ChicagoDublin
ORD - DUB
ORDDUB
Chicago O'Hare Intl
Tue 2/17
6:35 pm-8:10 am
Nonstop7h 35m
Dublin
Fri 2/27
10:40 am-1:30 pm
Nonstop8h 50m
ChicagoDublin
ORD - DUB
ORDDUB
Chicago O'Hare Intl
Sun 1/18
1:00 pm-7:30 am
1 stop12h 30m
Dublin
Tue 1/27
10:40 am-1:30 pm
Nonstop8h 50m
ChicagoDublin
MDW - DUB
MDWDUB
Chicago Midway
Wed 4/8
2:03 pm-7:55 am
1 stop11h 52m
Dublin
Wed 4/15
5:55 am-6:31 pm
2 stops18h 36m
ChicagoDublin
MDW - DUB
MDWDUB
Chicago Midway
Wed 4/22
9:20 am-7:55 am
1 stop16h 35m
Dublin
Thu 4/30
5:55 am-6:31 pm
2 stops18h 36m
ChicagoDublin
MDW - DUB
MDWDUB
Chicago Midway
Sun 1/18
9:32 am-8:45 am
2 stops17h 13m
Dublin
Tue 1/27
5:55 am-6:36 pm
2 stops18h 41m
| 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 72 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 $365). Flying from Chicago to Dublin in June is currently the most expensive (average of $676). 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.
It’s optimal to fly from Chicago to Dublin in the morning. By choosing this option you can save up to 26% on the cost of your flight, compared to a flight in the afternoon.
Travelers seeking maximum savings on their Chicago to Dublin flight should consider departing on Saturday mornings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
The most flights from CHI to DUB are scheduled on a Monday (14 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (12 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.
Boarding
Entertainment
Overall
Food
Comfort
Crew
Reviews
Kevin,Dec 2025
BOS - EWR
Boarding
Entertainment
Overall
Food
Comfort
Crew
Reviews
Kevin,Dec 2025
BOS - EWR
Boarding
Entertainment
Overall
Food
Comfort
Crew
Reviews
Kevin,Dec 2025
BOS - EWR
Boarding
Entertainment
Overall
Food
Comfort
Crew
Reviews
Kevin,Dec 2025
BOS - EWR
Boarding
Entertainment
Overall
Food
Comfort
Crew
Reviews
Kevin,Dec 2025
BOS - EWR
Boarding
Entertainment
Overall
Food
Comfort
Crew
Reviews
Kevin,Dec 2025
BOS - EWR
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$51 | Average$557 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$346 | Average$541 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$393 | Average$500 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$400 | Average$473 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$472 | Average$711 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$473 | Average$818 | FlexibilityNo cancel fee | On-time79% | |
| Cheapest$488 | Average$741 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$498 | Average$669 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$499 | Average$833 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$517 | Average$774 | FlexibilityNo cancel fee | On-time69% |