How long is the flight from USA to London, Ontario?

There are many flights that can get you from USA to London, Ontario in 5h 16m. Fly via Air Canada or WestJet to get the fastest option. The distance between USA and London, Ontario is about 1008 mi. Both multi-stop and nonstop flights can be found to your destination and back.

What is the cheapest month to book a flight from USA to London, Ontario?

Currently, March is the cheapest month in which you can book a flight from USA to London, Ontario (average of $53). Flying from USA to London, Ontario in August is currently the most expensive (average of $114). 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.

In terms of precipitation, rainfall in London, Ontario ranges from 2.8 - 3.9 inches per month. January is typically the wettest month, when rainfall can reach 3.9 in. March is typically the driest time to visit London, Ontario when rainfall is around 2.8 in.

If weather is an important factor for your trip to London, Ontario, 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 68.0 F. Travelers looking to avoid the cold should look outside of February, when temperatures are typically at their lowest (around 21.2 F).

What are the most popular routes from USA to London, Ontario?

The most popular flight routes from USA to London, Ontario are Chicago O'Hare Intl - London, Orlando - London and Newark - London.

What are the most popular airlines that fly from USA to London, Ontario?

When booking a flight from USA to London, Ontario, you may want to consider flying on Air Canada, United Airlines or WestJet as they are the most popular for this route.

What is the cheapest time of day to fly from US to YXU?

When flying from USA to London, Ontario, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 57% versus a flight in the afternoon.

What airport do you fly into for flights to London from United States?

London (YXU) is the airport you will fly into if you book a flight from United States to London. It is only a 5.3 mi journey from London (YXU) to London’s city center.

Can I find deals for flights from USA to London that include hotel bookings?

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

How can I find direct flights from USA to London?

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

Can I find deals for business class flights from USA to London?

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

$199+ Flights from the United States to London, ON

Most accurate provider	FlightHub 3 stars
Most trusted provider	Expedia 3 stars
Round-trip from	$430 (Air Canada)
One-way from	$199 (Air Canada)

Air Canada

Economy Latitude includes priority check-in and two checked bags.

Preferred Seats offer up to four inches extra space, bookable for a fee.

Read more about Air Canadaby Jessica Macdonald

United Airlines

Basic Economy allows a personal item only; no carry-on unless flying to Canada.

Economy Plus offers extra legroom seats at the front of the economy cabin.

Read more about United Airlinesby Harriet Baskas

WestJet

UltraBasic fare allows one personal item only, no carry-on included.

EconoFlex includes one free checked bag and free seat selection.

Airline	Cheapest	Average	Flexibility	On-time
WestJet	Cheapest$162	Average$478	FlexibilityNo cancel fee	On-time60%
Air Canada	Cheapest$178	Average$530	FlexibilityNo cancel fee	On-time67%
United Airlines	Cheapest$183	Average$357	FlexibilityNo cancel fee	On-time69%

$199+ Cheap flights from the United States to London, ON (YXU)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/24. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheapest flights from USA to LondonExplore the most affordable flight options available from USA to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 6, 2025.

Explore the most affordable flight options available from USA to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 6, 2025.

Cheap flight deals from USA to London

Keep the following information in mind while searching for USA to London flight deals. Data was last updated November 6, 2025.

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Best time to book a flight from USA to London

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Everything you need to know about your flight from the United States to London

What is the cheapest month to book a flight from USA to London, Ontario?

What is the cheapest time of day to fly from US to YXU?

Find hourly flight availability from USA to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 6, 2025.

The best insider tips for theUnited States to London flights

Cheapflights partnered with top experts to bring you the best recommendations for your theUnited States to London trip

Airlines

Air Canada

United Airlines

WestJet

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Reviews of airlines servicing London

Peruse reviews from past customers who have flown with United Airlines, WestJet, and Air Canada from the United States to London to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from USA to London. 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 into for flights to London from United States?

How long is the flight from USA to London, Ontario?

What are the most popular routes from USA to London, Ontario?

Can I find deals for flights from USA to London that include hotel bookings?

How can I find direct flights from USA to London?

Can I find deals for business class flights from USA to London?

What is the cheapest month to book a flight from USA to London, Ontario?

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Cheapest flights from USA to London
Explore the most affordable flight options available from USA to London. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 6, 2025.