Question 1

Why should I use momondo to find a flight deal to London?

Accepted Answer

We help find the flight that best suits your needs; momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight for you.

Question 2

Can I find flights to London with flexible booking policies on momondo?

Accepted Answer

momondo does allow users to show only those flights to London which offer a flexible booking policy as well as other useful filters and features.

Question 3

How can momondo help me find flights to London?

Accepted Answer

Once you have performed a search for flights to London, momondo helps you find the right flight by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

Question 4

I’m not ready to book a flight to London right now. Can momondo alert me if prices change?

Accepted Answer

Yes momondo offers price alerts on flights to London. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

Question 5

When are the weather conditions best for skiing in London?

Accepted Answer

Typically, the best ski conditions are found in February or January, when the temperatures are lower and there is a chance of fresh snow. Popular places to ski in the London area include Blue Mountain.

Question 6

Is there an alternative airport near London, Ontario?

Accepted Answer

Those flying to London, Ontario could potentially find better pricing at London Airport (5 mi from London, Ontario city center), Toronto Region of Waterloo Intl Airport (54 mi from London, Ontario city center), Sarnia Airport (54 mi from London, Ontario city center), Chatham-Kent Airport (63 mi from London, Ontario city center) or Hamilton Airport (67 mi from London, Ontario city center) depending on the month and departure airport.

Question 7

Is there a cheaper alternative to flying into London, Ontario?

Accepted Answer

You can find deals at London Airport for $197 on average, but that price can change based on your departure airport. To save money, try momondo’s Airport-to-Airport Pricing Tool.

Question 8

What is the absolute cheapest flight to London, Ontario?

Accepted Answer

$69 is the cheapest deal found on momondo in the last two weeks for a flight to London, Ontario. This flight is from Edmonton and is 70% cheaper than most flights to London, Ontario. To find the cheapest price to London, Ontario from your area, use momondo’s Airport-to-Airport Pricing Tool.

Question 9

Which airlines fly to London, Ontario?

Accepted Answer

Based on our data, the most popular airlines that fly to London, Ontario from United States are Air Canada, Porter Airlines, United Airlines and American Airlines. There may also be other airline options depending on where in United States you’re flying from.

Question 10

WestJet Flights to London, Ontario

Accepted Answer

There are 6 WestJet flights to London, Ontario in a normal week. The most common departure point is Calgary and the best WestJet ticket price seen on momondo is $162 (last 72 hours, from San Francisco, to London, Ontario). WestJet has a score of 7.2 from 3,172 user reviews on momondo.

Question 11

When did momondo last update prices for flights to London Airport?

Accepted Answer

Prices for flights to London Airport refresh daily.

Question 12

How many operators does momondo search for flights to London Airport?

Accepted Answer

The number of operators available for flights to London Airport is 3 as of November 2025.

Question 13

How old do you have to be to fly to London Airport?

Accepted Answer

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel to London Airport.

Question 14

What documentation or ID do you need to fly to London Airport?

Accepted Answer

The necessary travel and health documents for your London Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Question 15

How long does it take to fly to London, Ontario?

Accepted Answer

If you’re flying from a popular airport in United States, such as Los Angeles or Miami, and flying into London, Ontario, then you can expect flight times to average 4h 40m and 3h 20m, respectively.

Question 16

What is the cheapest time of day to depart on your flight to London, Ontario?

Accepted Answer

In the afternoon is the cheapest time of day to fly from United States to London, Ontario when you can find flight prices for as low as $284. Flying to London, Ontario in the afternoon is an ideal time because this is during off-peak travel hours. In the morning is when there is more demand to fly to London, Ontario, so prices are often more expensive at around $514 per ticket.

Question 17

What is the cheapest day to depart on your flight to London, Ontario?

Accepted Answer

According to our data, Wednesday is the cheapest day to fly to London, Ontario from United States. The lowest ticket price found for a Wednesday departure recently was $199. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Be sure to avoid booking your departure on a Friday as prices are generally higher than usual. According to our data, the average ticket price to London, Ontario on Friday is $549.

CHEAPEST MONTH TO FLY TO LONDON, ONTARIO FROM LOS ANGELES	May	27% cheaper	Flying from Los Angeles to London, Ontario costs on average just $278 in May
MOST EXPENSIVE MONTH TO FLY TO LONDON, ONTARIO FROM LOS ANGELES	November	137% more expensive	It costs about $893 for flights to London, Ontario from Los Angeles in November
MOST POPULAR MONTH TO FLY TO LONDON, ONTARIO FROM LOS ANGELES	July	600% more users visited	More momondo users searched in flights to London, Ontario from Los Angeles in July than any other month

Best One-Way Price	$171
Best Round-Trip Price	$430
Fastest flight time	4h 00m

$171 Cheap flights to London, Ontario

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight to London, Ontario departing on 1/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from the United States to London, Ontario

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

momondo Fare Finder

Use the filters below to find and compare flights to London, Ontario that are best for you.

See travel insights to London, Ontario from

London, Ontario flights insights and trends

Explore insights for your London, Ontario flight to craft the best travel plan

What is the cheapest day to depart on your flight to London, Ontario?

What is the cheapest time of day to depart on your flight to London, Ontario?

How long does it take to fly to London, Ontario?

If you’re flying from a popular airport in United States, such as Los Angeles or Miami, and flying into London, Ontario, then you can expect flight times to average 4h 40m and 3h 20m, respectively.

Cheapest flights to London

Find the cheapest flights to London from your nearest city or airport

Cheap London, Ontario flight deals and tips

Summary info about London, Ontario flight prices, duration and airlines

Best One-Way Price

Best Round-Trip Price

Fastest flight time

Frequently asked questions about flying to London, Ontario

When are the weather conditions best for skiing in London?

Is there an alternative airport near London, Ontario?

Is there a cheaper alternative to flying into London, Ontario?

What is the absolute cheapest flight to London, Ontario?

When did momondo last update prices for flights to London Airport?

How many operators does momondo search for flights to London Airport?

How old do you have to be to fly to London Airport?

What documentation or ID do you need to fly to London Airport?

Traveling to a place near London, Ontario?

Why use momondo?

Why should I use momondo to find a flight deal to London?

Can I find flights to London with flexible booking policies on momondo?

How can momondo help me find flights to London?

I’m not ready to book a flight to London right now. Can momondo alert me if prices change?

An easier way to manage your London trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to London, Ontario

Popular flights to London, Ontario

Popular routes according to searches in the past day on momondo