What are the cheapest airlines to fly from USA to London, Ontario one-way?

The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as $130. However, be on the lookout for offers from Air Canada and Delta, as they are both options that can get you from USA to London, Ontario for a low price.

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 New York John F Kennedy Intl - London, Newark - London and New York LaGuardia - London.

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

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from USA to London, Ontario as you normally would.

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.

$130+ Flights from the United States to London, ON

Round-trip from	$276 (Trip.com)
One-way from	$130 (SmartFares)

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
Air Canada	Cheapest$178	Average$484	FlexibilityNo cancel fee	On-time67%
United Airlines	Cheapest$183	Average$381	FlexibilityNo cancel fee	On-time69%
WestJet	Cheapest$306	Average$496	FlexibilityNo cancel fee	On-time60%

$130+ 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 10/6. Fares are subject to change and may not be available on all flights or dates of travel.

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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 July 29, 2025.

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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 July 29, 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 July 29, 2025.

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Best time to book a flight from USA to London

Have a flexible travel schedule? Discover the best time to fly to London from USA with our price prediction graph.

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

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 July 29, 2025.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to London. Reviews last updated July 29, 2025.

Peruse reviews from past customers who have flown with Delta, United Airlines, and WestJet 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?

What are the cheapest airlines to fly from USA to London, Ontario one-way?

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?

Traveling to a place near London?

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Alternative routes for USA to London

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Top 3 airlines flying from USA to London

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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 July 29, 2025.