How long is the flight from London, Ontario to San Diego?

A quick flight from London, Ontario to San Diego can take about 9h. WestJet provides one of the quickest options available for as low as C$ 400. London, Ontario and San Diego are separated by a distance of 3331 km. This flight may include one or multiple stops.

In terms of precipitation, rainfall in San Diego ranges from 0.0 - 58.0 mm per month. February is typically the wettest month, when rainfall can reach 58.0 mm. July is typically the driest time to visit San Diego when rainfall is around 0.0 mm.

If weather is an important factor for your trip to San Diego, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 22.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 14.0 C).

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

When flying from London, Ontario to San Diego, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

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

How can I find direct flights from London to San Diego?

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

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

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

C$ 299+ Cheap Flights from London, ON to San Diego

Cheap flight deals from London to San Diego

Enter your travel dates to find the best prices.

Cheapest

Best

Last-minute

One-way

Cheapest flights from London to San Diego
Explore the most affordable flight options available from London to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2026.

Wed 25/116:40 a.m. -

1 stop9h 00m

Wed 2/121:30 p.m. -

1 stop13h 05m

Deal found 14/9C$ 400

Wed 25/115:30 a.m. -

2 stops13h 55m

Wed 2/124:45 p.m. -

2 stops18h 57m

Deal found 14/9C$ 472

Thu 29/108:30 p.m. -

2 stops22h 55m

Thu 5/114:45 p.m. -

2 stops19h 02m

Deal found 14/9C$ 530

Mon 23/119:15 a.m. -

2 stops14h 09m

Thu 26/1110:20 p.m. -

2 stops13h 27m

Deal found 15/9C$ 561

Mon 23/115:30 a.m. -

2 stops20h 10m

Thu 26/1112:55 p.m. -

1 stop16h 42m

Deal found 14/9C$ 613

Thu 29/107:40 a.m. -

3 stops35h 45m

Thu 5/114:45 p.m. -

2 stops19h 02m

Deal found 14/9C$ 627

Find flight deals from London to San Diego

Round-trip from	C$ 400
One-way from	C$ 299

WestJet
25/11-2/12
2 total stops
22h 05m total
London to San Diego

Search Deals

WestJet
29/10-31/12
1 total stop
33h 00m total
London to San Diego

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

LondonSan Diego

YXU London - SAN San Diego

YXUSAN

London

Thu 29/10

9:15 a.m.-12:19 a.m.

2 stops18h 04m

San Diego

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 315

LondonSan Diego

YXU London - SAN San Diego

YXUSAN

London

Wed 25/11

6:40 a.m.-12:40 p.m.

1 stop9h 00m

San Diego

Wed 2/12

1:30 p.m.-5:35 a.m.

1 stop13h 05m

C$ 400

LondonSan Diego

YXU London - SAN San Diego

YXUSAN

London

Mon 23/11

9:15 a.m.-8:24 p.m.

2 stops14h 09m

San Diego

Thu 26/11

10:20 p.m.-2:47 p.m.

2 stops13h 27m

C$ 561

LondonSan Diego

YXU London - SAN San Diego

YXUSAN

London

Mon 23/11

5:30 a.m.-10:40 p.m.

2 stops20h 10m

San Diego

Thu 26/11

12:55 p.m.-8:37 a.m.

1 stop16h 42m

C$ 613

LondonSan Diego

YXU London - SAN San Diego

YXUSAN

London

Wed 25/11

5:30 a.m.-12:00 p.m.

1 stop9h 30m

San Diego

Wed 2/12

4:45 p.m.-2:42 p.m.

2 stops18h 57m

C$ 631

LondonSan Diego

YXU London - SAN San Diego

YXUSAN

London

Tue 2/2

5:30 a.m.-12:00 p.m.

1 stop9h 30m

San Diego

Fri 26/2

7:41 p.m.-9:52 p.m.

3 stops23h 11m

C$ 824

Flights are sorted by cheapest round-trip flights first.

Deals found on 14/9

Sorted by cheapest first

Best time to book a flight from London to San Diego

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

YXU-SAN

Estimated round-trip 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.

Reviews of airlines servicing San Diego

Check out reviews from past customers who have flown with United Airlines and Air Canada from London to San Diego 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.

United Airlines

7.4

Good

10,229 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

United Airlines

7.4

Good

10,229 reviews

United Airlines

7.4

Good

10,229 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Air Canada

7.1

Good

11,654 reviews

United Airlines

7.4

Good

10,229 reviews

Check prices

Reviews

1 / 20

10.0

Excellent

Anonymous,Sep 2025

FRA - SFO

Lufthansa was amazing, I wish United States based airlines operated like them.

Related info for your journey

How long is the flight from London, Ontario to San Diego?
A quick flight from London, Ontario to San Diego can take about 9h. WestJet provides one of the quickest options available for as low as C$ 400. London, Ontario and San Diego are separated by a distance of 3331 km. This flight may include one or multiple stops.
Can I find deals for flights from London to San Diego that include hotel bookings?
Yes. In addition to deals on London to San Diego flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from London to San Diego?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to San Diego.
Can I find deals for business class flights from London to San Diego?
Yes. Cheapflights offers flight deals from London to San Diego by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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Top 2 airlines flying from London to San Diego

Airline	Cheapest	Average	Flexibility	On-time
Air Canada	CheapestC$ 329	AverageC$ 771	FlexibilityNo cancel fee	On-time67%	Search Air Canada flights
United Airlines	CheapestC$ 420	AverageC$ 420	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights

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How does Cheapflights help users find flights from London to San Diego?

Cheapflights makes it easy to find London to San Diego flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from London to San Diego?

Cheapflights helps you find that perfect flight to San Diego from London by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from London to San Diego with no change fees?

Yes, we can. To see specific flights from London to San Diego with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from London to San Diego become cheaper?

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

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Cheap flights from London, ON to San Diego from C$ 299

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 29/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from London to San Diego

Cheapest flights from London to San DiegoExplore the most affordable flight options available from London to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2026.

Explore the most affordable flight options available from London to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2026.

Best flights from London to San DiegoDiscover carefully curated flight deals from London to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 18 September 2026.

Discover carefully curated flight deals from London to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 18 September 2026.

Last-minute flights from London to San DiegoDiscover last-minute flight deals from London to San Diego. Data last updated 18 September 2026 and is based on user searches.

Discover last-minute flight deals from London to San Diego. Data last updated 18 September 2026 and is based on user searches.

One-way flights from London to San DiegoSearch for one-way flight options from London to San Diego. Find affordable one-way fares based on user searches. Data last updated 18 September 2026.

Search for one-way flight options from London to San Diego. Find affordable one-way fares based on user searches. Data last updated 18 September 2026.

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Use the filters below to find and compare flights from London to San Diego that are best for you.

Best time to book a flight from London to San Diego

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

Reviews of airlines servicing San Diego

Check out reviews from past customers who have flown with United Airlines and Air Canada from London to San Diego 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

How long is the flight from London, Ontario to San Diego?

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

How can I find direct flights from London to San Diego?

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

Travelling to a place near San Diego?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for London to San Diego

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to San Diego by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to California

Book a non-stop flight to one of these other cities located in California.

Search flights from London to San Diego by cabin class

Find flights from London to San Diego, based on your preferred cabin class, be it economy, premium economy, business, or first class.

London and San Diego flights

Browse other London and San Diego flight options. Last updated on 18 September 2026.

Other flights from London

Browse through other flights departing from London. Flights are based on user searches made on Cheapflights and were last updated on 18 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

Other flights to San Diego

Explore flights to San Diego departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 18 September 2026.

Top 2 airlines flying from London to San Diego

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How does Cheapflights help users find flights from London to San Diego?

Why should you use Cheapflights to find cheap flight tickets from London to San Diego?

Can Cheapflights find flights from London to San Diego with no change fees?

Can Cheapflights notify me if prices for flights from London to San Diego become cheaper?

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Travel Smart

Cheapest flights from London to San Diego
Explore the most affordable flight options available from London to San Diego. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 18 September 2026.

Best flights from London to San Diego
Discover carefully curated flight deals from London to San Diego that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 18 September 2026.

Last-minute flights from London to San Diego
Discover last-minute flight deals from London to San Diego. Data last updated 18 September 2026 and is based on user searches.

One-way flights from London to San Diego
Search for one-way flight options from London to San Diego. Find affordable one-way fares based on user searches. Data last updated 18 September 2026.