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£63+ Cheap flights from Chicago O'Hare Intl Airport

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/1. 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.
ORD — LHR
11 Jan — 18 Jan1
1 adult
1 adult, Economy, 0 bags

What to know about flights from O'Hare Intl

Discover essential information about flights departing from O'Hare Intl, including flight schedules, destinations, airlines operating at the O'Hare Intl airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 12 December 2025.

Cheapest airline

Spirit Airlines

Good round-trip deal

£44 or less

Good one-way deal

£66 or less
On average, Spirit Airlines currently has the cheapest one-way flight from Chicago O'Hare Intl (avg. price of £148).
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Price to beat on a round-trip flight from Chicago O'Hare Intl.
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Price to beat on a one-way flight from Chicago O'Hare Intl.
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Enter your travel dates to find the best prices.

Cheapest flights from O'Hare Intl
Explore the most affordable flight options available from O'Hare Intl. Find the lowest fares based on data from user searches, with prices last updated on 12 December 2025.

Mon 26/110:29ORD - DUB
2 stops19h 16mScandinavian Airlines
Fri 30/120:20DUB - ORD
2 stops26h 25mScandinavian Airlines
Deal found 9/12£314
Sat 24/118:30ORD - DUB
1 stop9h 45mIcelandair
Tue 10/211:30DUB - ORD
1 stop11h 50mIcelandair
Deal found 11/12£321
Thu 5/218:30ORD - DUB
1 stop9h 45mIcelandair
Mon 9/211:30DUB - ORD
1 stop11h 50mIcelandair
Deal found 11/12£322
Wed 14/119:20ORD - DUB
2 stops32h 40mScandinavian Airlines
Sat 17/110:10DUB - ORD
1 stop12h 35mScandinavian Airlines
Deal found 10/12£325
Sat 24/119:20ORD - DUB
2 stops33h 25mScandinavian Airlines
Sat 31/110:10DUB - ORD
1 stop12h 35mScandinavian Airlines
Deal found 10/12£329
Sat 10/119:20ORD - DUB
2 stops34h 25mScandinavian Airlines
Sat 17/110:10DUB - ORD
1 stop12h 35mScandinavian Airlines
Deal found 12/12£333
Wed 4/219:20ORD - DUB
1 stop17h 00mScandinavian Airlines
Wed 11/211:30DUB - ORD
2 stops35h 15mScandinavian Airlines
Deal found 11/12£335
Mon 19/118:30ORD - EDI
2 stops19h 45mMultiple Airlines
Fri 23/106:45EDI - ORD
2 stops16h 35mMultiple Airlines
Deal found 11/12£336
Fri 9/120:15ORD - DUB
1 stop21h 05mTAP AIR PORTUGAL
Tue 27/116:55DUB - ORD
1 stop28h 05mTAP AIR PORTUGAL
Deal found 11/12£337
Tue 10/218:35ORD - DUB
Nonstop7h 35mUnited Airlines
Wed 18/209:00DUB - ORD
2 stops35h 20mUnited Airlines
Deal found 11/12£338
Wed 14/119:20ORD - DUB
2 stops32h 40mScandinavian Airlines
Wed 4/211:30DUB - ORD
2 stops35h 15mScandinavian Airlines
Deal found 10/12£338
Thu 12/218:30ORD - GLA
1 stop9h 25mIcelandair
Tue 17/212:35GLA - ORD
1 stop10h 45mIcelandair
Deal found 10/12£354

Find flights from O'Hare Intl within your budget

 
Find flights departing from O'Hare Intl that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 12 December 2025. In the last 7 days, Cheapflights users made a total of 858,174 searches

Fly to

Heathrow

Route

Depart

Return

Price

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Fri 6/2

18:30-10:15

1 stop9h 45m

Dublin

Mon 9/2

11:30-17:20

1 stop11h 50m

£322

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 14/1

19:20-10:00

2 stops32h 40m

Dublin

Sat 17/1

10:10-16:45

1 stop12h 35m

£325

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 14/4

16:20-07:20

1 stop33h 00m

Dublin

Tue 28/4

09:50-09:10

1 stop29h 20m

£344

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 29/4

20:15-09:45

Nonstop7h 30m

Dublin

Wed 13/5

09:20-19:53

1 stop16h 33m

£345

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Mon 26/1

19:20-10:45

2 stops33h 25m

Dublin

Fri 30/1

11:30-16:45

2 stops35h 15m

£350

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Sun 19/4

20:15-09:45

Nonstop7h 30m

Dublin

Tue 5/5

09:50-15:48

1 stop11h 58m

£350

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Tue 21/4

20:15-09:45

Nonstop7h 30m

Dublin

Fri 1/5

09:50-21:59

1 stop18h 09m

£350

ChicagoDublin

ORD - DUB

ORDDUB

Chicago O'Hare Intl

Wed 22/4

20:15-09:45

Nonstop7h 30m

Dublin

Wed 29/4

09:50-09:50

1 stop30h 00m

£350

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Tue 24/3

19:30-09:55

1 stop9h 25m

Glasgow Intl

Mon 30/3

14:20-18:15

1 stop9h 55m

£366

ChicagoGlasgow

ORD - GLA

ORDGLA

Chicago O'Hare Intl

Tue 3/2

18:30-09:55

1 stop9h 25m

Glasgow Intl

Sat 7/2

12:35-17:20

1 stop10h 45m

£366

Flights are sorted by cheapest return flights first.

Deals found on 10/12

Showing 1-10 of 60 results
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Best time to book a flight from O'Hare Intl

Have a flexible travel schedule? Discover the best time to fly from O'Hare Intl with our price prediction graph.
Estimated return 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 O'Hare Intl

Get recent, data-driven insights about flights from O'Hare Intl including ideal travel times, pricing trends, and more.

When is the best time to book a flight from Chicago O'Hare Intl Airport?

Use this chart to determine the optimal time to book a return flight from O'Hare Intl to Heathrow. Price data was last updated on 5 December 2025.

Booking 42 days in advance of your planned departure date is, on average, the best time to get cheap flights from Chicago O'Hare Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Chicago O'Hare Intl Airport?

Currently, May is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport (average of £295). Flying from Chicago O'Hare Intl Airport in June will prove the most costly (average of £678). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

Which airlines fly from Chicago O'Hare Intl Airport?

Many airlines operate round-trip flights from Chicago O'Hare Intl Airport: British Airways, Iberia, Finnair, Aer Lingus, United Airlines. These airlines fly to the following popular destinations: London.

British Airways
British Airways
From £386
American Airlines
American Airlines
From £68
Aer Lingus
Aer Lingus
From £343
Iberia
Iberia
From £428

What are popular destinations to fly to from Chicago O'Hare Intl Airport?

If you’re flying from Chicago O'Hare Intl Airport, these routes are more frequently taken by airlines New York (1,475 flights per day), Detroit (814 flights per day) and Los Angeles (575 flights per day).

New York
New York
From £51
London
London
From £294
Los Angeles
Los Angeles
From £93
Dublin
Dublin
From £185

What is the cheapest place to fly to from Chicago O'Hare Intl Airport?

The cheapest city to fly to from Chicago O'Hare Intl Airport is Palm Beach Intl, with prices starting at £22. Explore other affordable destinations below.

Palm Beach Intl
Palm Beach Intl
From £22
Dallas/Fort Worth
Dallas/Fort Worth
From £30
Atlanta Hartsfield-Jackson
Atlanta Hartsfield-Jackson
From £41
Boston Logan Intl
Boston Logan Intl
From £44

Airline reviews for flights from O'Hare Intl

Get insights into the airlines that provide service from O'Hare Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing airline for your flight from O'Hare Intl. In the last 7 days, Cheapflights users made a total of 858,174 searches.
Read reviews from past customers who have flown Finnair, United Airlines, andAer Lingus from Chicago O'Hare Intl Airport. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,334 reviews
Check prices

Entertainment

6.9

Food

6.7

Boarding

7.6

Comfort

7.4

Crew

8.1

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Finnair
7.6
Good
1,334 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Entertainment

6.9

Food

6.7

Boarding

7.6

Comfort

7.4

Crew

8.1

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
United Airlines
7.4
Good
9,095 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Entertainment

6.9

Food

6.7

Boarding

7.6

Comfort

7.4

Crew

8.1

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Aer Lingus
7.2
Good
1,394 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Entertainment

6.9

Food

6.7

Boarding

7.6

Comfort

7.4

Crew

8.1

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
Iberia
7.0
Good
3,045 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Entertainment

6.9

Food

6.7

Boarding

7.6

Comfort

7.4

Crew

8.1

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.
British Airways
6.7
Okay
7,571 reviews
Finnair
7.6
Good
1,334 reviews
Check prices

Entertainment

6.9

Food

6.7

Boarding

7.6

Comfort

7.4

Crew

8.1

Overall

7.6

Reviews

1 / 20
10.0
Excellent

Anonymous,May 2025

FRA - DFW

I was lucky I had a seet without no one next to me My vegetarian meal was excellent. The service very good. Although there was a lot of turbulences during the flight, the landing was very soft and took away all our apprehension.

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Alternate flight departure points to O'Hare Intl

Consider leaving from one of these other departure points that are located a short distance from O'Hare Intl. Flight origins were last updated on 12 December 2025.
Flights from St. Louis
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Flights from Quincy

Related info for your journey

Access useful and relevant information related to your journey from O'Hare Intl. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 12 December 2025.

  • What are the most popular destinations to fly to from Chicago O'Hare Intl Airport?

    This month, the top selected destinations from Chicago O'Hare Intl Airport are Ahmedabad, Mumbai, Bangkok Suvarnabhumi Airport. Throughout the year, Ahmedabad, Mumbai, Athens are some of the top choices made by users flying from Chicago O'Hare Intl Airport.

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

    Users have flown out of Chicago O'Hare Intl Airport for as low as £22 to West Palm Beach (prices may vary depending on the airline and departure time). On average, users have booked flights for £546 to fly from Chicago O'Hare Intl Airport.

  • What are the cheapest airlines flying from Chicago O'Hare Intl Airport to anywhere?

    Over the past few days, we've found that Frontier, American Airlines, and Spirit Airlines have the cheapest prices from Chicago O'Hare Intl Airport. Frontier flights from Chicago O'Hare Intl Airport to Palm Beach Intl (£21), American Airlines flights from Chicago O'Hare Intl Airport to Grand Rapids Gerald R. Ford Intl (£68), and Spirit Airlines flights from Chicago O'Hare Intl Airport to New York LaGuardia (£75).

  • What is the cheapest premium economy flight from Chicago O'Hare Intl Airport?

    Here are some of the cheapest offers we have found for the cheapest premium economy flights from Chicago O'Hare Intl Airport.
    Chicago O'Hare Intl to Minneapolis from £227
    Chicago O'Hare Intl to South Bend from £252
    Chicago O'Hare Intl to Houston George Bush Intcntl Airport from £355
    Chicago O'Hare Intl to Salt Lake City from £416

  • What is the cheapest first class flight from Chicago O'Hare Intl Airport?

    If you’re looking for a cheap first-class flight from Chicago O'Hare Intl Airport, consider Detroit. Prices start at £320 so you can fly first-class even on a budget.

  • What is the cheapest month to fly from Chicago O'Hare Intl Airport?

    At the present moment the cheapest month to fly from Chicago O'Hare Intl Airport is currently May; with June being the most expensive. Prices will vary depending on multiple factors such as booking in advance, airline and departure airports and times.

  • Where are the cheapest places to fly to from Chicago O'Hare Intl Airport?

    Check out the cheapest flights from Chicago O'Hare Intl Airport to embark to:
    Travel from Chicago to London from £294 round trip
    Travel from Chicago to Edinburgh from £336 round trip
    Travel from Chicago to Manchester from £341 round trip
    Travel from Chicago to Glasgow from £354 round trip
    Travel from Chicago to Almaty from £948 round trip

  • How does Cheapflights help users find flights from O'Hare Intl?

    Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from O'Hare Intl. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

  • Why should you use Cheapflights to find cheap flight tickets from O'Hare Intl?

    Cheapflights simply makes it quick and affordable to book flights from O'Hare Intl by bringing together all flight options from hundreds of airlines and agencies online — and we put them in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

  • Can Cheapflights find flights from O'Hare Intl with no change fees?

    Certainly. Search results for flights from O'Hare Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

  • Can Cheapflights notify me if prices for flights from O'Hare Intl become cheaper?

    Of course! You can now track prices for flights from O'Hare Intl and get an alert from Cheapflights when they change. Click the bell icon next to the flight deals above and provide your email address to set up price alerts.

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Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from O'Hare Intl. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets from O'Hare Intl?

Cheapflights simply makes it quick and affordable to book flights from O'Hare Intl by bringing together all flight options from hundreds of airlines and agencies online — and we put them in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from O'Hare Intl with no change fees?

Certainly. Search results for flights from O'Hare Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from O'Hare Intl become cheaper?

Of course! You can now track prices for flights from O'Hare Intl and get an alert from Cheapflights when they change. Click the bell icon next to the flight deals above and provide your email address to set up price alerts.

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