What is the cheapest month to book a flight from Lethbridge to San Francisco?

Currently, January is the cheapest month in which you can book a flight from Lethbridge to San Francisco (average of $276). Flying from Lethbridge to San Francisco in June is currently the most expensive (average of $357). 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 San Francisco ranges from 0.0 - 4.4 inches per month. January is typically the wettest month, when rainfall can reach 4.4 in. July is typically the driest time to visit San Francisco when rainfall is around 0.0 in.

If weather is an important factor for your trip to San Francisco, use this chart to help with planning. For those seeking warmer temperatures, September is the ideal time of year to visit, when temperatures reach an average of 62.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 51.8 F).

What is the cheapest time of day to fly from YQL to SFO?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Lethbridge to San Francisco as you normally would.

Can I find deals for flights from Lethbridge to San Francisco that include hotel bookings?

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

How can I find direct flights from Lethbridge to San Francisco?

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

Can I find deals for business class flights from Lethbridge to San Francisco?

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

$173+ Flights from Lethbridge to San Francisco

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One-way flights from Lethbridge to San Francisco
Search for one-way flight options from Lethbridge to San Francisco. Find affordable one-way fares based on user searches. Data last updated September 11, 2025.

Sat 10/255:00 pmYQL - SFO

2 stops17h 30mMultiple Airlines

Deal found 9/10

$173

Sun 10/264:50 pmYQL - SFO

2 stops19h 05mMultiple Airlines

Deal found 9/11

$199

Sat 10/255:00 pmYQL - SFO

1 stop20h 12mWestJet

Deal found 9/10

$979

Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

LethbridgeSan Francisco

YQL - SFO

YQLSFO

Lethbridge

Sat 10/25

5:00 pm-9:30 am

2 stops17h 30m

$173

LethbridgeSan Francisco

YQL - SFO

YQLSFO

Lethbridge

Sun 10/26

4:50 pm-10:55 am

2 stops19h 05m

$199

LethbridgeSan Francisco

YQL - SFO

YQLSFO

Lethbridge

Sat 10/25

5:00 pm-12:12 pm

1 stop20h 12m

$979

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Best time to book a flight from Lethbridge to San Francisco

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

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.

Related info for your journey

Can I find deals for flights from Lethbridge to San Francisco that include hotel bookings?
Yes. In addition to deals on Lethbridge to San Francisco flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Lethbridge to San Francisco?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Lethbridge to San Francisco.
Can I find deals for business class flights from Lethbridge to San Francisco?
Yes. Cheapflights offers flight deals from Lethbridge to San Francisco by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Lethbridge to San Francisco?
Currently, January is the cheapest month in which you can book a flight from Lethbridge to San Francisco (average of $276). Flying from Lethbridge to San Francisco in June is currently the most expensive (average of $357). 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.

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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 10/25. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Lethbridge to San Francisco with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Lethbridge to San Francisco

One-way flights from Lethbridge to San Francisco
Search for one-way flight options from Lethbridge to San Francisco. Find affordable one-way fares based on user searches. Data last updated September 11, 2025.

Search for one-way flight options from Lethbridge to San Francisco. Find affordable one-way fares based on user searches. Data last updated September 11, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Lethbridge to San Francisco

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

Related info for your journey

Find useful and relevant information for your journey from Lethbridge to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

Can I find deals for flights from Lethbridge to San Francisco that include hotel bookings?

How can I find direct flights from Lethbridge to San Francisco?

Can I find deals for business class flights from Lethbridge to San Francisco?

What is the cheapest month to book a flight from Lethbridge to San Francisco?

Traveling to a place near San Francisco?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Lethbridge to San Francisco

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Complete your trip

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

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Lethbridge and San Francisco flights

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$173+ Cheap flights from Lethbridge (YQL) to San Francisco (SFO)

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 10/25. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Lethbridge to San Francisco with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Find flight deals from Lethbridge to San Francisco

One-way flights from Lethbridge to San FranciscoSearch for one-way flight options from Lethbridge to San Francisco. Find affordable one-way fares based on user searches. Data last updated September 11, 2025.

Search for one-way flight options from Lethbridge to San Francisco. Find affordable one-way fares based on user searches. Data last updated September 11, 2025.

Cheapflights Fare Finder

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

Best time to book a flight from Lethbridge to San Francisco

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

Related info for your journey

Find useful and relevant information for your journey from Lethbridge to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

Can I find deals for flights from Lethbridge to San Francisco that include hotel bookings?

How can I find direct flights from Lethbridge to San Francisco?

Can I find deals for business class flights from Lethbridge to San Francisco?

What is the cheapest month to book a flight from Lethbridge to San Francisco?

Traveling to a place near San Francisco?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Lethbridge to San Francisco

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

100% Free

Book with Flexibility

Travel Smart

One-way flights from Lethbridge to San Francisco
Search for one-way flight options from Lethbridge to San Francisco. Find affordable one-way fares based on user searches. Data last updated September 11, 2025.