LON - ORD

$472 Find Cheap Flights from London to Chicago

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to O'Hare Intl departing on 3/18. 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.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Chicago O'Hare Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Chicago.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Chicago.
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Everything you should know

Cheapest round-trip
$530
Overall average: $590
Scandinavian Airlines
Do 2/26Mo 3/2
LHR - ORD • 2 stops
Cheapest non-stop
$622
Typical prices: $586-$883
British Airways
So 2/22So 3/1
LHR - ORD • Non-stop
Our travelers' advice
AI-powered summary based on content written by travel experts and KAYAK users. AI can make mistakes.
BA Premium Economy offers 7 inches extra legroom.
Heathrow's B gate area is quiet with food options.
Expert advice
Expert advice
+1
+1
Expert advice
Expert advice
+1
Top airlines
Scandinavian Airlines
Cheapest • from $530 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
LHR
-
ORD
Cheapest
LHR
-
ORD
Most popular
Insights
Insights
Insights
Insights
When to book
2 weeks
in advance
Our data shows that travelers who book at least 2 weeks in advance save around 24% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
September
Cheapest • 16% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to O'Hare Intl!
Flight Deals
Booking Insights
Expert advice
Flight Deals

Cheap Flights from London to O'Hare Intl (LON-ORD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from London to O'Hare Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from London to O'Hare Intl

Do, Feb 26 - Mo, Mrz 2
Scandinavian Airlines Logo
7:05 am - 4:45 pm
LHR
-
ORD
15h 40m
2 stops
Scandinavian Airlines Logo
7:20 pm - 4:25 pm
ORD
-
LHR
15h 05m
2 stops
$530Scandinavian Airlines
Do, Mrz 5 - Sa, Mrz 7
Multiple Airlines Logo
2:00 pm - 9:06 am
LGW
-
ORD
25h 06m
1 stop
Multiple Airlines Logo
6:51 pm - 6:00 am
ORD
-
LGW
29h 09m
1 stop
$531Multiple Airlines
Mi, Mrz 11 - Mi, Mrz 25
Icelandair Logo
12:15 pm - 6:20 pm
LHR
-
ORD
11h 05m
1 stop
Icelandair Logo
7:30 pm - 10:50 am
ORD
-
LHR
10h 20m
1 stop
$531Icelandair
Mo, Mrz 2 - Mo, Mrz 16
Scandinavian Airlines Logo
10:20 am - 4:45 pm
LHR
-
ORD
12h 25m
1 stop
Scandinavian Airlines Logo
8:20 pm - 4:00 pm
ORD
-
LHR
14h 40m
1 stop
$532Scandinavian Airlines
Fr, Feb 27 - Sa, Mrz 7
Multiple Airlines Logo
1:00 pm - 9:22 am
LGW
-
ORD
26h 22m
1 stop
Multiple Airlines Logo
6:51 pm - 6:00 am
ORD
-
LGW
29h 09m
1 stop
$533Multiple Airlines
Do, Feb 26 - Mo, Mrz 2
Scandinavian Airlines Logo
6:40 am - 4:45 pm
LHR
-
ORD
16h 05m
1 stop
Scandinavian Airlines Logo
7:20 pm - 6:50 pm
ORD
-
LHR
17h 30m
2 stops
$533Scandinavian Airlines
So, Mai 3 - Fr, Mai 8
Icelandair Logo
1:00 pm - 6:15 pm
LGW
-
ORD
11h 15m
1 stop
Icelandair Logo
10:25 pm - 2:40 pm
ORD
-
LGW
10h 15m
1 stop
$535Icelandair
Di, Mrz 17 - Mi, Apr 8
TAP AIR PORTUGAL Logo
4:35 pm - 4:00 pm
LGW
-
ORD
28h 25m
1 stop
TAP AIR PORTUGAL Logo
6:00 pm - 2:00 pm
ORD
-
LGW
14h 00m
1 stop
$539TAP AIR PORTUGAL
Di, Mrz 17 - Di, Mrz 24
SWISS Logo
9:15 am - 5:20 pm
LCY
-
ORD
13h 05m
1 stop
SWISS Logo
7:50 pm - 12:55 pm
ORD
-
LCY
12h 05m
1 stop
$670SWISS
Di, Mrz 3 - Di, Mrz 10
SWISS Logo
9:15 am - 4:20 pm
LCY
-
ORD
13h 05m
1 stop
SWISS Logo
7:50 pm - 12:55 pm
ORD
-
LCY
12h 05m
1 stop
$684SWISS
Booking Insights

KAYAK's insights & trends for London to O'Hare Intl flights

Get data-powered insights and trends into flights from London to O'Hare Intl to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from London to Chicago O'Hare Intl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from London to Chicago O'Hare Intl Airport departing in February.

What is the cheapest London to Chicago O'Hare Intl Airport flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from London to Chicago O'Hare Intl Airport costs $572 on the route between London Heathrow Airport (LHR) and Chicago O'Hare Intl Airport (ORD). It is also the most popular route.

What’s the cheapest day of the week to fly from London to Chicago?

The average price of all round-trip flights from London to Chicago O'Hare Intl Airport clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Chicago on a Wednesday and more expensive on a Monday. On your return trip to London, you should consider flying back on a Tuesday, and avoid Saturdays for better deals.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London to Chicago O'Hare Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from London to Chicago O'Hare Intl Airport is September, where tickets cost $595 (return) on average. On the other hand, the most expensive months are July and December, where the average cost of round-trip tickets is $878 and $847 respectively.

Can I save money by flying with a layover from London to Chicago O'Hare Intl Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at $668 on average.

How far in advance should I book a flight from London to Chicago O'Hare Intl Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London to Chicago O'Hare Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from London to Chicago O'Hare Intl Airport, you should book around 2 weeks before departure, which saves you about 24% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 18 weeks before departure.

Expert advice

Expert advice for your flight from London to O'Hare Intl

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
Marisa Garcia

Marisa Garcia

Expert on Iberia

Marisa knows planes inside and out, spending 16 years working on aircraft in hangars at airports around the world. She is an aviation industry expert, specialized in airline interiors and regulations. Ten years ago, she pivoted to journalism. She shares her insights in leading aviation, travel, and business publications and on her site FlightChic.

Duncan Madden

Duncan Madden

Expert on British Airways and LHR

Duncan is a freelance travel writer, copywriter and book author in constant search of travel stories and the perpetual sensation of being on holiday. He’s never happier than when on a dusty trail in search of empty waves or ducking under the piste tape in search of snowbound solitude. British born, living in Germany, but happiest heading for the horizon. His first book, Found in Translation, explores the etymologies and stories of country names around the world and is out now.

Stefanie Waldek

Stefanie Waldek

Expert on United Airlines and ORD

Stefanie Waldek is a freelance space, travel, and design writer based in Saratoga Springs, NY. Her words have appeared in Space.com, Travel + Leisure, Condé Nast Traveler, Architectural Digest, and House Beautiful, among other publications. An expert in aviation and expedition cruising, Stefanie is frequently up in the air or on the sea, likely en route to Antarctica or the Arctic.

Harriet Baskas

Harriet Baskas

Expert on American Airlines

Harriet is an award-winning journalist who is happiest in an airport or an unusual museum. Her stories about airports, air travel, and the business of travel have appeared on NBC News, CNBC, USA TODAY, The Points Guy and other outlets. She is the creator of the StuckatTheAirport.com blog and the author of nine books. When not out on the road or exploring the latest airport amenities, she’s home in Seattle getting ready for the next adventure.

Good to know

Low seasonNovember
Cheapest flight$472
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly with an average 23% increase in price.
Flight from London Gatwick Airport to Chicago

When to book flights from London to O'Hare Intl

Are your dates flexible? Find out the best times to travel from London to O'Hare Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

Flights from London to O'Hare Intl: the best tips from KAYAK users' own experiences

Insights shared by verified travelers who flew the route from London to O'Hare Intl 
Verified travelerFlew with British Airways
LHR
-
ORD
Jun 2025
I wish I'd known that there were food and shopping opportunities at the B gate area. This was a lovely, NOT busy place to spend time. I'd have gone directly there if I'd known. Definitely a nice place to wait.
Verified travelerFlew with British Airways
LHR
-
ORD
Apr 2025
Make sure to allow ample time between connecting flights. I have to hoof it when I realized that TSA required bags to be picked up and rechecked.
MichaelFlew with British Airways
LHR
-
ORD
Apr 2025
Have a light luggage as much as you can. Boarding gate walk is not a joke.
Verified travelerFlew with British Airways
LHR
-
ORD
Jul 2024
Gate 10 is a train wreck because there are multiple gates distinguished by a letter following A10. If possible get there as quickly as possible to find the appropriate gate.
EmilyFlew with British Airways
LHR
-
ORD
Mar 2024
Bring as few liquids as possible or put them in checked bag. They are very strict at Heathrow about all of them fitting into one small ziplock bag

FAQs for booking London to Chicago flights

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

    In the last 3 days, the lowest price for a flight from London to Chicago O'Hare Intl Airport was $472 for a one-way ticket and $530 for a round-trip.

  • Do I need a passport to fly between London and Chicago?

    A passport is required to fly from London to Chicago.

  • Which airports will I be using when flying from London to Chicago?

    On your way to Chicago, you’ll fly out from one of these London airports: London City, London Gatwick, London Heathrow, London Luton, or London Stansted. You’ll be landing at Chicago O'Hare Intl.

  • Which airlines offer Wi-Fi service onboard planes from London to Chicago?

    American Airlines, Air France, KLM, Delta, and Virgin Atlantic offer inflight Wi-Fi service on the London to Chicago flight route.

  • Which aircraft models fly most regularly from London to Chicago?

    The Boeing 767-300 is the aircraft model that flies most regularly on the London to Chicago flight route.

  • Which airline alliances offer flights from London to Chicago?

    Star Alliance, and oneworld are the airline alliances operating flights between London and Chicago, with Star Alliance being the most commonly used for this route.

  • On which days can I fly direct from London to Chicago?

    There are nonstop flights from London to Chicago on a daily basis.

  • Which is the best airline for flights from London to Chicago, Austrian Airlines or United Airlines?

    The two airlines most popular with KAYAK users for flights from London to Chicago are Austrian Airlines and United Airlines. With an average price for the route of $813 and an overall rating of 7.5, Austrian Airlines is the most popular choice. United Airlines is also a great choice for the route, with an average price of $663 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from London to Chicago?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Chicago.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Chicago?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Chicago from London is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London to Chicago?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Chicago with an airline and back to London with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Chicago?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Chicago from London up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from London to Chicago O'Hare Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $635 or less one-way and $653 or less round-trip.

Prefer to fly direct from London to Chicago?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from London to Chicago O'Hare Intl.
Find which airlines fly direct from London to Chicago O'Hare Intl Airport, which days they fly and book direct flights.

Direct departures

London to Chicago O'Hare Intl

Monday

American Airlines, British Airways, United Airlines

American Airlines, British Airways, +1 more

Tuesday

American Airlines, British Airways, United Airlines

American Airlines, British Airways, +1 more

Wednesday

American Airlines, British Airways, United Airlines

American Airlines, British Airways, +1 more

Thursday

American Airlines, British Airways, United Airlines

American Airlines, British Airways, +1 more

Friday

American Airlines, British Airways, United Airlines

American Airlines, British Airways, +1 more

Saturday

American Airlines, British Airways, United Airlines

American Airlines, British Airways, +1 more

Sunday

American Airlines, British Airways, United Airlines

American Airlines, British Airways, +1 more

See more direct flights

Direct returns

Chicago O'Hare Intl to London

Monday

American Airlines, British Airways, United Airlines

American Airlines, British Airways, +1 more

Tuesday

American Airlines, British Airways, United Airlines

American Airlines, British Airways, +1 more

Wednesday

American Airlines, British Airways, United Airlines

American Airlines, British Airways, +1 more

Thursday

American Airlines, British Airways, United Airlines

American Airlines, British Airways, +1 more

Friday

American Airlines, British Airways, United Airlines

American Airlines, British Airways, +1 more

Saturday

American Airlines, British Airways, United Airlines

American Airlines, British Airways, +1 more

Sunday

American Airlines, British Airways, United Airlines

American Airlines, British Airways, +1 more

See more direct flights

Reviews of the top 5 airlines serving from London to O'Hare Intl

 
See real verified KAYAK customer reviews for airlines flying from London to Chicago. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from London to O'Hare Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 9231 reviews
6.6Food
7.7Boarding
7.1Entertainment
7.3Comfort
8.1Crew
Airline reviews

This Japanese airline provides great service and very helpful in assisting their passengers.

10.0 ExcellentAnonymous, Jan 2026
NRT - ORD
Read more United Airlines reviews

This Japanese airline provides great service and very helpful in assisting their passengers.

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

I so appreciate the crew members on each flight of United. They are outstanding.

Reliable, nice crew, I fly often on that flight and I like it all.

Perfect flight. Smooth flight. Arrived 20 minutes early at destination. Excellent service.

The flights were on time which was great give. It was holiday travel season and there’d been some weather issues. The only complaint and this is every time with United is the terrible seat design. The head rest is not built for comfort and having my neck bent forward for a cross country trip reminded me while I try not to take United flights as a rule.

Everything was absolutely wonderful from check in to baggage claim. Staff was very professional and sweet. Will definitely recommend United to family and friends.

The staff was nice, however boarding taking 2 hours. That’s insane. Overall very bad experience, a lot of turbulence and when landed in Chicago was horrible. I don’t think I’ll flight with UA again.

An international flight on an apron is pretty unusual in my 40 years of traveling. Departure delay. Luggage despite over an hour connection did not make it to the flight. Actually still in Germany. My luggage was not moved until I reached my final destination despite knowing it to be left in Germany upon my arrival in Chicago. The service left me a little off, both going and returning from Europe. Light on in the cabin even during a night flight and lots of traffic no matter what. Maybe passengers want more service? As a frequent traveler i just want to be able to sleep, the food will be better at the destination anyway. So since the cabin crew woke me up I asked for a cocktail, I did not get the best response although sitting in row 20 premium economy. I usually fly premium economy or business and my 2 flight to Europe in 2025 with United both had luggage delays and other minor issues. American flights to Australia, Canada and Europe went smoothly and Premium plus feels very much like business light. Is United Club becoming a waste and Silver/Gold levels another waste??

Flight from CHI to PVD was delayed by over 20 hours.

Update to handle the delay was very bad, crews no smiles or welcome or thanks. Don’t care attitude

Pilot navigated severe weather/snow storm with skill. Described his intentions clearly

Little warm on the plane and delayed for an hour

So excited very proud first of all I wanna thank kayak all updates very professional and fast alart And amazing cabin crew so nice to me they deserve big salute

The boarding process needs to be fixed. The zone don't work, especially when there is hardly anyone in zones 3, 4,and 5, leaving the majority of the passengers backed up in the aisle, especially because passengers seated near the front are blocking passengers who are seated in the rear of the plane. It would also help if the size of carry on bags was more strictly enforced.

Awful. They won’t help me with anything. I booked on American but they abdicated to Iberia. The ticket was overpriced. Everything negative

I enjoyed the extra leg room compared to other airlines. The first stewards made my daughter’s birthday special by giving her an extra snack. Then the last one coming home from Chicago to Appleton made our night really enjoyable Thanks for making our trip enjoyable

It was good..clean, comfy seat. Friendly warm welcoming crew. Was able to check my cabin luggage at the gate which I was able to pickup in a decent time from baggage claim. The app gave all updates from delays to baggage claim info. Overall smooth flight.

It was a typical flight. We had a delay which seems to be the normality now. And we had no in flight service due to conditions.

Overall satisfied and would fly with them again. They could improve the check-in efficiency at BOS, we got backed up because it seemed there were passengers requiring much more time for check in.

The customer service was unbeatable from the wheelchair assist team to the flight attendants. The pilot also did an excellent job managing the turbulence.

Delays at check-in, seemed like they were short ground staff at the time and some passengers needed extra processing.

Problems checking in both on the laptop and on the app. No free seating available at check-in as advertised - must pay for EVERY seat between $23 and $75. No way to cancel seat choice. App menus and site menus are not responsive, and some items are impossible to find. Crew and mobile assistance are friendly and helpful.

The Experience Was Torture Spend a few extra dollars and avoid Icelandair at all costs. There is absolutely no refreshments, no food, no drinks. Only water, coffee, tea are free and at only half a tiny cup. Entertainment is limited selection of films, shows and mostly outdated. The seats are smaller than usual, with no cushion, no pillows, no blankets. First time in my life have I witness an airline asking for donations in spare change for a charity. With all the money Icelandair saves by starving the passenger, they can afford to give this charity on their own.

Again, we paid $ 328.00 for specific seats are were assigned those seats.

Having been prepared for paying for everything on board other than water, coffee and tea the service was OK. Food and drink is expensive but the food was OK if limited in scope. Plane was clean and obviously well serviced. After complaining about having to walk in wind and rain to a get a bus to the airport the same thing happened at Portland. I’m sure you could get a terminal gate flight, complimentary food and drink for not much more money without traipsing through rain and slush in Reykjavik. Not bad but not great.

If there was a disclaimer regarding food service or lack thereof, l missed it. If l had known l would have prepared better. Same with transferring at Reykjavik. No information about disembarking via stairs into rain, slush and puddles deep enough to swallow a foot. After being treated to haute cuisine restaurants and warm inviting environment during the flight, the airport is, let’s be kind, disappointing. Plane was comfortable, Airbus, staff were welcoming enough. I would likely try the route again. Maybe have a night and day in Iceland. Maybe not.

The boarding process seem to take longer than necessary, resulting in a 20+ minute delay

It was too cold in the plane my feet froze

We were in premium economy seats that appeared to be locked in plae, No reclining. My aching back.

I don’t understand how they charge as much as they do for such a poor experience

I wish the plane had pod seating for business class. I had a window seat (8K) and I had to climb over the person sitting on the aisle when I needed to get up. Also there is no partition between the seats for privacy when sleeping. The Asian airlines have much nicer business class seating. Their seats are wider for better comfort when sleeping.

The seat space seemed small especially when the person ahead reclined but other than that, very good.

Luggage transfer in Chicago was not performed in time. I received my luggage at my destination two days later.

Food was poor quality and the screens for entertainment didn’t work properly

It was a short flight, everything was good with it.

I darted through the Frankfurt airport to make my connecting flight. I asked if it was a possibility to upgrade and the agent did. This was the kindest gesture and it made up for the previous delayed flight and distress/anxiety of anticipating that Zi was going to miss my Frankfurt-Chicago connection. I cannot express my gratitude for the upgrade.. I am 5feet 10 inches do the leg space was amazing.

I meant this flight was not good, the one from Tirana to Frankfurt was better!

I was very grateful for Lufthansa's role in organizing mobility support. The touchscreen on my seat was faulty: slow, stained (I couldn't get it clean), and glitchy. This made selecting movies extremely time consuming, and twice I had to start all over from the beginning.

My touch screen at my seat wasn't working, the films BA advertised on the website for this flight were not available, and the plane was a little dated, food was good and the staff were good, just let down by the aircraft facilities.

Did not like the seating configuration at all with 2+3+2 in business class. Lacking total privacy and comfort

Check-in experience, for business call please provide a premium experience

Lost my luggage, ran out of food choices in business class, ground crew was completely unapologetic.

Excellent. The crew and flight were great. Checking in was easy and everyone was very helpful.

Entertainment devices on A380 need to be fixed, the seats might do with updates.

Everything. Employees offered to help me because I had to use a cane.

Check-in and boarding were great. On flight staff were rude and disrespectful. Paid for extra room and found it incredibly cramped. Bathrooms kept in poor condition. Overall negative experience.

Great seat in premium economy, great food and drinks throughout lots of in flight entertainment. 1 hour 40 min delayed flying out , 2 1/2 hour wait at passport control in tampa

My seat cushion was poor. The cushion was compressed and was uncomfortable for such a long flight.

Everything you need to know for your flight from London to O'Hare Intl

Information on your arrival and departure airports