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£66+ 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 8/12. 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 Dec — 18 Dec1
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 11 November 2025.

Cheapest airline

Frontier

Good round-trip deal

£44 or less

Good one-way deal

£38 or less
On average, Frontier currently has the cheapest one-way flight from Chicago O'Hare Intl (avg. price of £126).
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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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Find flights from O'Hare Intl

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 11 November 2025.

Thu 19/213:45ORD - HOU
1 stop6h 40mSouthwest
Thu 26/207:00HOU - ORD
1 stop5h 15mSouthwest
Deal found 9/11£134
Fri 16/114:49ORD - HOU
1 stop7h 46mDelta
Sun 18/105:35HOU - ORD
1 stop8h 04mDelta
Deal found 9/11£150
Thu 27/1117:08ORD - HOU
1 stop5h 59mDelta
Tue 2/1210:39HOU - ORD
1 stop6h 06mDelta
Deal found 10/11£150
Sat 6/1216:20ORD - HOU
1 stop6h 13mDelta
Fri 12/1218:47HOU - ORD
1 stop5h 14mDelta
Deal found 10/11£158
Sat 21/217:15ORD - HOU
1 stop6h 20mSouthwest
Sat 28/208:45HOU - ORD
2 stops13h 50mSouthwest
Deal found 10/11£163
Fri 12/1216:25ORD - HOU
1 stop7h 45mSouthwest
Mon 15/1206:00HOU - ORD
1 stop7h 00mSouthwest
Deal found 10/11£165
Wed 3/1213:45ORD - HOU
2 stops6h 05mSouthwest
Sat 6/1208:35HOU - ORD
1 stop4h 25mSouthwest
Deal found 10/11£169
Tue 24/211:55ORD - HOU
2 stops7h 55mSouthwest
Tue 3/309:00HOU - ORD
2 stops12h 50mSouthwest
Deal found 10/11£172
Tue 2/1211:15ORD - HOU
1 stop6h 37mDelta
Sun 7/1206:00HOU - ORD
1 stop6h 10mDelta
Deal found 10/11£173
Mon 8/1213:45ORD - HOU
1 stop5h 50mSouthwest
Wed 10/1212:50HOU - ORD
1 stop9h 00mSouthwest
Deal found 10/11£180
Thu 12/205:25ORD - HOU
1 stop6h 56mDelta
Thu 19/210:50HOU - ORD
1 stop6h 03mDelta
Deal found 11/11£181
Mon 8/1213:45ORD - HOU
2 stops6h 05mSouthwest
Thu 11/1212:50HOU - ORD
1 stop9h 00mSouthwest
Deal found 10/11£184

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 11 November 2025. In the last 7 days, Cheapflights users made a total of 858,174 searches

Fly to

Heathrow

Route

Depart

Return

Price

ChicagoHouston

ORD - HOU

ORDHOU

Chicago O'Hare Intl

Wed 31/12

06:45-14:38

1 stop7h 53m

Houston Hobby

Tue 6/1

11:09-16:43

1 stop5h 34m

£150

ChicagoHouston

ORD - HOU

ORDHOU

Chicago O'Hare Intl

Tue 24/2

09:52-16:30

1 stop6h 38m

Houston Hobby

Tue 3/3

13:06-19:21

1 stop6h 15m

£150

ChicagoHouston

ORD - HOU

ORDHOU

Chicago O'Hare Intl

Mon 24/11

06:45-13:28

1 stop6h 43m

Houston Hobby

Tue 2/12

10:39-18:43

1 stop8h 04m

£150

ChicagoHouston

ORD - HOU

ORDHOU

Chicago O'Hare Intl

Wed 3/12

16:20-22:48

1 stop6h 28m

Houston Hobby

Wed 10/12

06:00-12:03

1 stop6h 03m

£150

ChicagoHouston

ORD - HOU

ORDHOU

Chicago O'Hare Intl

Sat 6/12

16:20-22:33

1 stop6h 13m

Houston Hobby

Fri 12/12

18:47-00:01

1 stop5h 14m

£158

ChicagoHouston

ORD - HOU

ORDHOU

Chicago O'Hare Intl

Wed 10/12

13:45-19:50

2 stops6h 05m

Houston Hobby

Wed 17/12

07:30-13:00

1 stop5h 30m

£169

ChicagoHouston

ORD - HOU

ORDHOU

Chicago O'Hare Intl

Wed 3/12

13:45-19:50

2 stops6h 05m

Houston Hobby

Sat 6/12

08:35-13:00

1 stop4h 25m

£169

ChicagoHouston

ORD - HOU

ORDHOU

Chicago O'Hare Intl

Wed 25/2

13:45-21:40

2 stops7h 55m

Houston Hobby

Sat 28/2

05:35-12:15

1 stop6h 40m

£169

ChicagoHouston

ORD - HOU

ORDHOU

Chicago O'Hare Intl

Thu 11/12

06:05-14:35

1 stop8h 30m

Houston Hobby

Mon 15/12

05:55-15:25

1 stop9h 30m

£180

ChicagoManchester

ORD - MAN

ORDMAN

Chicago O'Hare Intl

Tue 6/1

18:30-10:45

1 stop10h 15m

Manchester

Wed 4/2

11:55-17:20

1 stop11h 25m

£394

Flights are sorted by cheapest return flights first.

Deals found on 8/11

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 7 November 2025.

Booking 17 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 £298). Flying from Chicago O'Hare Intl Airport in June will prove the most costly (average of £687). 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 £392
American Airlines
American Airlines
From £69
Iberia
Iberia
From £429
Aer Lingus
Aer Lingus
From £365

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 (1,510 flights per day), Detroit (928 flights per day) and Los Angeles (702 flights per day).

London
London
From £287
New York
New York
From £34
Dublin
Dublin
From £307
Abu Dhabi Zayed Intl
Abu Dhabi Zayed Intl
From £581

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
New York
New York
From £34
Dallas/Fort Worth
Dallas/Fort Worth
From £37
Houston Hobby
Houston Hobby
From £40

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, Aer Lingus, andIberia 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
1,335 reviews
Check prices

Crew

8.1

Food

6.7

Overall

7.6

Boarding

7.6

Comfort

7.4

Entertainment

6.9

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
1,335 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Crew

8.1

Food

6.7

Overall

7.6

Boarding

7.6

Comfort

7.4

Entertainment

6.9

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
1,368 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Crew

8.1

Food

6.7

Overall

7.6

Boarding

7.6

Comfort

7.4

Entertainment

6.9

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
3,008 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Crew

8.1

Food

6.7

Overall

7.6

Boarding

7.6

Comfort

7.4

Entertainment

6.9

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.
Lufthansa
6.8
Okay
7,565 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Crew

8.1

Food

6.7

Overall

7.6

Boarding

7.6

Comfort

7.4

Entertainment

6.9

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
7,511 reviews
Finnair
7.6
Good
1,335 reviews
Check prices

Crew

8.1

Food

6.7

Overall

7.6

Boarding

7.6

Comfort

7.4

Entertainment

6.9

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 11 November 2025.
Flights from St. Louis
Flights from Evansville
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Flights from Bloomington
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Flights from Champaign
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Flights from Springfield
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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 11 November 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 £592 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 (£22), American Airlines flights from Chicago O'Hare Intl Airport to Grand Rapids Gerald R. Ford Intl (£69), and Spirit Airlines flights from Chicago O'Hare Intl Airport to Los Angeles (£76).

  • 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 £231
    Chicago O'Hare Intl to South Bend from £257
    Chicago O'Hare Intl to Houston George Bush Intcntl Airport from £361
    Chicago O'Hare Intl to Kansas City from £373

  • 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 £326 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 £313 round trip
    Travel from Chicago to Edinburgh from £331 round trip
    Travel from Chicago to Glasgow from £355 round trip
    Travel from Chicago to Almaty from £964 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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