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$401+ Cheap flights from Dublin (DUB) to Illinois

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/14. Fares are subject to change and may not be available on all flights or dates of travel.
DUB — ORD
Jan 26 — Feb 21
Sun 1/26
Sun 2/2
1 adult, Economy
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Cheap flight deals from Dublin to Illinois

Discover tips and strategies to find the most affordable flight options for your journey from Dublin (DUB) to Illinois (USIL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 21, 2025.

Round-trip from

$401
(United Airlines)

Good round-trip deal

$588 or less

Good one-way deal

$481 or less
From Dublin to Illinois
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Price to beat on a one-way flight from Dublin to Illinois.
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Find flight deals from Dublin to Illinois

Cheapest flights from Dublin to Illinois
Explore the most affordable flight options available from Dublin to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 21, 2025.

This United Airlines deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/149:50 amDUB - ORD
1 stop11h 01mUnited Airlines
Sun 4/208:15 pmORD - DUB
Nonstop7h 30mUnited Airlines
Deal found 1/20$401
This Mytrip deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/53:20 pmDUB - ORD
Nonstop8h 35mAer Lingus
Sun 3/94:55 pmORD - DUB
Nonstop7h 20mAer Lingus
Deal found 1/20$405
This SWISS deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/56:40 pmDUB - ORD
1 stop24h 15mSWISS
Sun 3/98:05 pmORD - DUB
1 stop35h 00mSWISS
Deal found 1/20$406
This Finnair deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/301:55 pmDUB - ORD
Nonstop8h 00mMultiple Airlines
Wed 9/35:45 pmORD - DUB
1 stop12h 10mMultiple Airlines
Deal found 1/21$408
This Flysmarter deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/510:25 amDUB - ORD
1 stop12h 35mBritish Airways
Sun 3/92:36 pmORD - DUB
1 stop13h 04mBritish Airways
Deal found 1/21$414
This Air Canada deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/59:00 amDUB - ORD
2 stops16h 55mAir Canada
Sun 3/92:05 pmORD - DUB
1 stop11h 05mAir Canada
Deal found 1/20$415
This Delta deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/178:50 amDUB - ORD
1 stop11h 40mDelta
Mon 2/244:58 pmORD - DUB
2 stops16h 42mDelta
Deal found 1/20$417
This American Airlines deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/12:05 pmDUB - ORD
1 stop11h 59mAmerican Airlines
Fri 2/75:00 pmORD - DUB
1 stop18h 00mAmerican Airlines
Deal found 1/21$422
This Delta deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/58:50 amDUB - MDW
2 stops15h 21mDelta
Mon 3/106:42 pmMDW - DUB
2 stops15h 58mDelta
Deal found 1/21$426
This Air France deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/208:50 amDUB - MDW
2 stops15h 21mMultiple Airlines
Thu 2/2712:44 pmMDW - DUB
1 stop15h 01mMultiple Airlines
Deal found 1/21$429
This KLM deal was found by Cheapflights users on 1/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/111:00 amDUB - MDW
1 stop17h 29mKLM
Wed 5/73:45 pmMDW - DUB
1 stop11h 00mKLM
Deal found 1/21$442
This Finnair deal was found by Cheapflights users on 1/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/69:40 amDUB - ORD
1 stop14h 10mFinnair
Wed 4/239:30 pmORD - DUB
1 stop29h 25mFinnair
Deal found 1/20$445

Find flights from Dublin to Illinois within your budget

Customize your flight search to find flights from Dublin to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 21, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 4/14

9:50 am-2:51 pm

1 stop11h 01m

Chicago O'Hare Intl

Sun 4/20

1:28 pm-7:10 am

1 stop11h 42m

$401

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 3/5

3:20 pm-5:55 pm

Nonstop8h 35m

Chicago O'Hare Intl

Sun 3/9

4:55 pm-5:15 am

Nonstop7h 20m

$405

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 3/5

6:40 pm-12:55 pm

1 stop24h 15m

Chicago O'Hare Intl

Sun 3/9

8:05 pm-12:05 pm

1 stop35h 00m

$406

DublinChicago

DUB - ORD

DUBORD

Dublin

Thu 3/6

8:30 am-7:37 pm

2 stops17h 07m

Chicago O'Hare Intl

Sun 3/9

9:50 am-6:10 am

1 stop15h 20m

$408

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 3/5

10:25 am-5:00 pm

1 stop12h 35m

Chicago O'Hare Intl

Sun 3/9

2:36 pm-8:40 am

1 stop13h 04m

$414

DublinChicago

DUB - ORD

DUBORD

Dublin

Wed 3/5

9:00 am-7:55 pm

2 stops16h 55m

Chicago O'Hare Intl

Sun 3/9

2:05 pm-6:10 am

1 stop11h 05m

$415

DublinChicago

DUB - ORD

DUBORD

Dublin

Mon 2/17

8:50 am-2:30 pm

1 stop11h 40m

Chicago O'Hare Intl

Mon 2/24

4:58 pm-3:40 pm

2 stops16h 42m

$417

DublinChicago

DUB - ORD

DUBORD

Dublin

Sat 2/1

2:05 pm-8:04 pm

1 stop11h 59m

Chicago O'Hare Intl

Fri 2/7

5:00 pm-5:00 pm

1 stop18h 00m

$422

DublinChicago

DUB - MDW

DUBMDW

Dublin

Wed 3/5

5:55 am-6:11 pm

2 stops18h 16m

Chicago Midway

Mon 3/10

6:42 pm-3:40 pm

2 stops15h 58m

$426

DublinChicago

DUB - MDW

DUBMDW

Dublin

Thu 2/20

8:50 am-6:11 pm

2 stops15h 21m

Chicago Midway

Thu 2/27

12:44 pm-9:45 am

1 stop15h 01m

$429

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 51 results
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Best time to book a flight from Dublin to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Dublin with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Dublin to Illinois

Get recent, data-driven insights about flights from Dublin to Illinois including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Dublin to Illinois?

Currently, August is the cheapest month in which you can book a flight from Dublin to Illinois (average of $245). Flying from Dublin to Illinois in March is currently the most expensive (average of $320). 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.

What is the cheapest time of day to fly from DUB to IL?

Find hourly flight availability from Dublin to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated January 21, 2025.

When flying from Dublin to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Dublin to Illinois

Explore weekly flight availability from Dublin to Illinois. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated January 21, 2025.

The most flights from DUB to USIL are scheduled on a Monday (3 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (3 on average).

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated January 21, 2025.
See what other customers who have flown with British Airways, American Airlines and Turkish Airlines from Dublin to Illinois have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,521 reviews

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,521 reviews
Delta
8.0
Very good
8,521 reviews

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

KLM
7.8
Good
1,341 reviews
Delta
8.0
Very good
8,521 reviews

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair
7.6
Good
1,286 reviews
Delta
8.0
Very good
8,521 reviews

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

SWISS
7.5
Good
1,600 reviews
Delta
8.0
Very good
8,521 reviews

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Air France
7.4
Good
1,490 reviews
Delta
8.0
Very good
8,521 reviews

Overall

8.0

Comfort

8.0

Boarding

8.2

Food

7.3

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Dublin to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Dublin to Illinois?

    Located just 5.7 mi from the city center, Dublin (DUB) is the airport most travelers will use when flying to Illinois from Dublin.

  • What are the cheapest airlines to fly from Dublin to Illinois one-way?

    The cheapest airlines for a one-way flight from Dublin to Illinois are TAP AIR PORTUGAL ($417), Icelandair ($421), and SWISS ($436).

  • What are the most popular routes from Dublin to Illinois?

    The most popular flight routes from Dublin to Illinois are Dublin - Chicago O'Hare Intl, Dublin - Chicago Midway and Dublin - Lambert-St Louis.

  • What are the most reliable airlines from Dublin to Illinois?

    Before booking your flight to Illinois from Dublin, check out the most reliable airlines to get you to your destination on time: American Airlines (65%), Aer Lingus (65%), British Airways( 65%).

  • What are the cheapest flights from Dublin to Illinois?

    While on average a flight from Dublin to Illinois is generally $1,222, our data shows the cheapest flight currently is $359. When looking at the most popular route, (Dublin - Chicago O'Hare Intl), you can expect to pay $321 for that flight.

  • Can I find deals for flights from Dublin to Illinois that include hotel bookings?

    Yes. In addition to deals on Dublin to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Dublin to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Dublin to Illinois.

  • Can I find deals for business class flights from Dublin to Illinois?

    Yes. Cheapflights offers flight deals from Dublin to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Dublin to Illinois?

    Currently, August is the cheapest month in which you can book a flight from Dublin to Illinois (average of $245). Flying from Dublin to Illinois in March is currently the most expensive (average of $320). 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.

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Alternative routes for Dublin to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Dublin to Illinois

Discover the top 5 airlines that operate flights from Dublin to Illinois. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$368Average$795FlexibilityNo cancel feeOn-time70%
Aer LingusCheapest$400Average$554FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$412Average$525FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$573Average$722FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$648Average$745FlexibilityNo cancel feeOn-time69%
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