A large red brick building with a prominent dome and a staircase leading to the entrance.

Cheap flights to McHenry County

View €278 flight on Thu, 27 Aug 2026Opens in a new window

Popular airlines to McHenry County

  • Delta

  • American Airlines

  • Frontier Airlines

  • United

  • Alaska Airlines

  • JetBlue Airways

  • Southwest Airlines

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 15% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap round-trip flights to McHenry County

Prices were available within the past 7 days and start at €278 for one-way flights and €405 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Thu, 12 Nov - Mon, 16 Nov
DUB
Dublin
ORD
Chicago
€405 Return, found 1 day ago
€405
Return
found 1 day ago
Select Icelandair flight, departing Thu, 12 Nov from Dublin to Chicago, returning Mon, 16 Nov, priced at €405 found 1 day ago
British Airways
Wed, 3 Mar - Sun, 7 Mar
DUB
Dublin
ORD
Chicago
€447 Return, found 5 days ago
€447
Return
found 5 days ago
Select British Airways flight, departing Wed, 3 Mar from Dublin to Chicago, returning Sun, 7 Mar, priced at €447 found 5 days ago
Aer Lingus
Sun, 1 Nov - Sun, 8 Nov
DUB
Dublin
ORD
Chicago
€462 Return, found 6 hours ago
€462
Return
found 6 hours ago
Select Aer Lingus flight, departing Sun, 1 Nov from Dublin to Chicago, returning Sun, 8 Nov, priced at €462 found 6 hours ago
American Airlines
Thu, 26 Nov - Mon, 30 Nov
DUB
Dublin
ORD
Chicago
€463 Return, found 2 days ago
€463
Return
found 2 days ago
Select American Airlines flight, departing Thu, 26 Nov from Dublin to Chicago, returning Mon, 30 Nov, priced at €463 found 2 days ago
Iberia
Sun, 1 Nov - Sat, 7 Nov
DUB
Dublin
ORD
Chicago
€467 Return, found 1 hour ago
€467
Return
found 1 hour ago
Select Iberia flight, departing Sun, 1 Nov from Dublin to Chicago, returning Sat, 7 Nov, priced at €467 found 1 hour ago
Finnair
Wed, 21 Oct - Wed, 4 Nov
DUB
Dublin
ORD
Chicago
€495 Return, found 3 days ago
€495
Return
found 3 days ago
Select Finnair flight, departing Wed, 21 Oct from Dublin to Chicago, returning Wed, 4 Nov, priced at €495 found 3 days ago
Scandinavian Airlines
Wed, 10 Mar - Mon, 15 Mar
DUB
Dublin
ORD
Chicago
€496 Return, just found
€496
Return
just found
Select Scandinavian Airlines flight, departing Wed, 10 Mar from Dublin to Chicago, returning Mon, 15 Mar, priced at €496 just found
Finnair
Fri, 4 Sept - Fri, 18 Sept
KRK
Kraków
ORD
Chicago
€499 Return, found 2 days ago
€499
Return
found 2 days ago
Select Finnair flight, departing Fri, 4 Sept from Kraków to Chicago, returning Fri, 18 Sept, priced at €499 found 2 days ago
LOT-Polish Airlines
Thu, 15 Oct - Sun, 18 Oct
KRK
Kraków
ORD
Chicago
€506 Return, found 2 days ago
€506
Return
found 2 days ago
Select LOT-Polish Airlines flight, departing Thu, 15 Oct from Kraków to Chicago, returning Sun, 18 Oct, priced at €506 found 2 days ago
American Airlines
Thu, 24 Sept - Sun, 11 Oct
WAW
Warsaw
ORD
Chicago
€507 Return, found 6 days ago
€507
Return
found 6 days ago
Select American Airlines flight, departing Thu, 24 Sept from Warsaw to Chicago, returning Sun, 11 Oct, priced at €507 found 6 days ago

Trending flights to McHenry County

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Thu, 12 Nov - Mon, 16 Nov
DUB
Dublin
ORD
Chicago
€405 Return, found 1 day ago
€405
Return
found 1 day ago
Select Icelandair flight, departing Thu, 12 Nov from Dublin to Chicago, returning Mon, 16 Nov, priced at €405 found 1 day ago

Frequently asked questions

How do I find cheap flights to McHenry County that have flexible change policies?
At Expedia, we've been channeling our inner Olympic gymnast to deliver you the most flexible airfares on the market. Just click on "No change fee" right under the "Flexible change policies" subheading to find the best flights to McHenry County.
Which airlines fly to McHenry County?
When you're ready to book your airfare to or near McHenry County, these carriers look forward to welcoming you on board:

  • United Airlines - 12,954 flights to or near McHenry County each month, including 12,950 flights to O'Hare Intl. Airport (ORD) per month.
  • American Airlines - 8,855 flights to or near McHenry County each month, including 8,855 flights to O'Hare Intl. Airport (ORD) per month.
  • Southwest Airlines - 5,997 flights to or near McHenry County each month, including 5,334 flights to Midway Intl. Airport (MDW) per month.

How can I find cheap tickets to McHenry County?
Start searching as early as possible, fly in or out of nearby airports, use frequent flyer miles — there's no shortage of ways! Another one is to use Expedia's "flexible dates" function. Find your McHenry County flight, then compare the cheapest prices for nearby dates. In the last seven days, the lowest price for a flight to McHenry County was €405.
How much is a flight to McHenry County?
One-way flights leaving Dublin (DUB) sold for just €278 in the last seven days. During this period, the price of a return ticket to McHenry County ranged between €405 and €507. If you spot a bargain ticket, grab it quickly — these fares don't hang about.
What are the most popular airports to fly into in McHenry County?
Depending on which airline you travel with and point of origin, one of these well-known airports will be your entry point to McHenry County:

  • O'Hare Intl. Airport (ORD) - 25,318 flights per month.
  • Midway Intl. Airport (MDW) - 5,962 flights per month.

How much is a plane ticket to McHenry County?
In the last seven days, plane fares to McHenry County ranged from €405 to €507.
What is the best time to go to McHenry County?
Algonquin, McHenry County's top city, is a great place to tour around at anytime. Not a fan of the cold? Then head here from June 20 onward during the summer months, when average temperatures range from 18ºC to 27ºC. May, June and September is when Algonquin draws the biggest crowds.
What months are the cheapest to book a flight to McHenry County?
February is an excellent month to bag a bargain fare to McHenry County. Be aware that the costliest time to reserve a seat in the USA isn't during the peak of summer, but the festive month of December.

Book with confidence

About McHenry County

Expedia offers flights to McHenry County to meet every traveller's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to McHenry County or destinations around the world and discover how easy it is to make your flight reservations on Expedia.
About McHenry County
*Available to Expedia members.