How far in advance should I book tickets for a flight with United Airlines from Calgary to San Francisco?

Generally, when trying to get a below-average price for your ticket, try to book around 7 days before departure. For the cheapest possible price, our data suggests booking 43 days before departure.

Is United Airlines the cheapest airline to fly with from Calgary to San Francisco?

With an average price of C$ 323 return, United Airlines is not the cheapest airline to fly from Calgary to San Francisco with. Instead, for the lowest price, our data suggests flying with Delta, where a return flight costs C$ 269 on average.

What is the cheapest United Airlines flight from Calgary to San Francisco?

In the last 3 days, the lowest price for a flight with United Airlines from Calgary to San Francisco was C$ 194 for a return flight and C$ 183 for a one-way flight.

Does United Airlines fly direct to San Francisco from Calgary?

Yes, United Airlines does offer direct flights for the route, with around 3 flights per week.

What’s the cheapest day of the week to fly from Calgary to San Francisco with United Airlines?

On average, the cheapest day of the week to fly from Calgary to San Francisco with United Airlines is Monday, when prices are around C$ 146. The most expensive day is generally Saturday, when the average price is around C$ 243.

What’s the cheapest month to fly from Calgary to San Francisco with United Airlines?

The cheapest month for United Airlines flights to San Francisco from Calgary is generally May, where plane tickets cost C$ 179 on average. If possible, try to avoid the most expensive months of January and August, when tickets cost C$ 377 and C$ 427 respectively.

C$ 175 Cheap United Airlines Flights from Calgary to San Francisco

YYC - SFO

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Flight Deals

Cheap United Airlines Flight Deals from Calgary to San Francisco

Discover the best prices for you by selecting your travel dates on KAYAK.

Round-trip

One-way

Last minute

Direct

Recent round-trip United Airlines flight deals from Calgary to San Francisco

Thu, 7 May - Mon, 11 May

3:22 p.m. - 5:15 p.m.

YYC

SFO

2h 53mdirect

8:23 a.m. - 12:19 p.m.

SFO

YYC

2h 56mdirect

C$ 237United Airlines

Tue, 24 Feb - Mon, 16 Mar

3:30 p.m. - 5:33 p.m.

YYC

SFO

3h 03mdirect

8:39 a.m. - 12:26 p.m.

SFO

YYC

2h 47mdirect

C$ 278United Airlines

Thu, 23 Apr - Mon, 27 Apr

3:22 p.m. - 5:12 p.m.

YYC

SFO

2h 50mdirect

8:23 a.m. - 12:19 p.m.

SFO

YYC

2h 56mdirect

C$ 340United Airlines

Thu, 5 Mar - Mon, 9 Mar

3:30 p.m. - 5:33 p.m.

YYC

SFO

3h 03mdirect

8:39 a.m. - 12:26 p.m.

SFO

YYC

2h 47mdirect

C$ 344United Airlines

Wed, 11 Mar - Wed, 18 Mar

3:30 p.m. - 5:33 p.m.

YYC

SFO

3h 03mdirect

8:39 a.m. - 12:26 p.m.

SFO

YYC

2h 47mdirect

C$ 352United Airlines

Tue, 24 Feb - Wed, 18 Mar

3:30 p.m. - 5:33 p.m.

YYC

SFO

3h 03mdirect

8:39 a.m. - 12:26 p.m.

SFO

YYC

2h 47mdirect

C$ 361United Airlines

Thu, 26 Feb - Tue, 3 Mar

3:30 p.m. - 5:33 p.m.

YYC

SFO

3h 03mdirect

8:39 a.m. - 12:26 p.m.

SFO

YYC

2h 47mdirect

C$ 362United Airlines

Thu, 16 Apr - Sun, 19 Apr

3:22 p.m. - 5:12 p.m.

YYC

SFO

2h 50mdirect

8:23 a.m. - 12:19 p.m.

SFO

YYC

2h 56mdirect

C$ 392United Airlines

Tue, 24 Feb - Thu, 19 Mar

3:30 p.m. - 5:33 p.m.

YYC

SFO

3h 03mdirect

8:39 a.m. - 12:26 p.m.

SFO

YYC

2h 47mdirect

C$ 401United Airlines

Thu, 26 Feb - Mon, 2 Mar

3:30 p.m. - 5:33 p.m.

YYC

SFO

3h 03mdirect

8:39 a.m. - 12:26 p.m.

SFO

YYC

2h 47mdirect

C$ 412United Airlines

Useful Info

Low season	June
High season	December
Cheapest flight	C$ 175
Average price round-trip	C$ 336

Best time to beat the crowds but there is an average 32% increase in price.

Most popular time to fly (2% more expensive on average)

Flight from Calgary to San Francisco

(price for this month)

When to Book Flights with United Airlines from Calgary to San Francisco

Average price per month

Flight prices as travel date approaches

How far in advance should I book tickets for a flight with United Airlines from Calgary to San Francisco?
Generally, when trying to get a below-average price for your ticket, try to book around 7 days before departure. For the cheapest possible price, our data suggests booking 43 days before departure.
Is United Airlines the cheapest airline to fly with from Calgary to San Francisco?
With an average price of C$ 323 return, United Airlines is not the cheapest airline to fly from Calgary to San Francisco with. Instead, for the lowest price, our data suggests flying with Delta, where a return flight costs C$ 269 on average.
What is the cheapest United Airlines flight from Calgary to San Francisco?
In the last 3 days, the lowest price for a flight with United Airlines from Calgary to San Francisco was C$ 194 for a return flight and C$ 183 for a one-way flight.
Does United Airlines fly direct to San Francisco from Calgary?
Yes, United Airlines does offer direct flights for the route, with around 3 flights per week.
What’s the cheapest day of the week to fly from Calgary to San Francisco with United Airlines?
On average, the cheapest day of the week to fly from Calgary to San Francisco with United Airlines is Monday, when prices are around C$ 146. The most expensive day is generally Saturday, when the average price is around C$ 243.
What’s the cheapest month to fly from Calgary to San Francisco with United Airlines?
The cheapest month for United Airlines flights to San Francisco from Calgary is generally May, where plane tickets cost C$ 179 on average. If possible, try to avoid the most expensive months of January and August, when tickets cost C$ 377 and C$ 427 respectively.

7.4

Good9,274 verified ratings

7.7Boarding

8.1Crew

7.3Comfort

7.1Entertainment

6.6Food

2.0 Poor

Verified traveller, Feb 2026

SFO

RDU

Terrible. No customer service, no food, no drinks on a 6 hour premier economy booking.

2.0 Poor

Verified traveller, Feb 2026

HKG

SFO

worst customer service I've ever experienced

2.0 Poor

Verified traveller, Feb 2026

BKK

HKG

Absolutely terrible. I booked my ticket with ANA and underpricer/kayak asked me to change all my return flights to United. Customer service does not exist with United. Flight attendants are rude, self-centered, and unhelpful. The food is served cold and uncovered. The in-flight video controllers do not work properly. Premier economy tickets with ANA, allow you access to all airport lounges, while United does not allow access to any lounge. Mockery of an airline.

6.0 Okay

Daymond, Feb 2026

ORD

SDF

Short flight, but no drink/snack service. The flights both going and coming were delayed.

10.0 Wonderful

Alissa, Feb 2026

EWR

TPA

Much better than Spirit. I was please by the easy fast check in and boarding

10.0 Wonderful

Stacy, Feb 2026

RDD

DEN

Made up time and smooth flight overall

6.0 Okay

James, Feb 2026

HND

IAD

Crew was great. 2 1/2 hour delay was due to staff needing "rest" was avoidable and self inflicted as United not willing to hire enough crew to keep flight on time.. Ridiculous. The crew and the passengers both suffered due to this.

6.0 Okay

Mike, Feb 2026

LAX

NRT

Check-in and in-flight staff were better than average. The seat was a fair size but too hard and not enough padding. The cushion/pillow provided is poor (thin and seems to be disposable ,it provides no effective cushioning or support). Food was OK-ish but no choice of inflight snacks and no easy place to get drinks other than water (I could ask for juice by intruding into the staff area at the back of the plane) Entertainment was very good actually. Overall better than I expected from a US-based airline (sorry!) but compared to ANA or Singapore it was so-so. (I live in Japan so they are my comparative airlines)

2.0 Poor

Verified traveller, Feb 2026

ORD

MSP

Non existent! Was not able to rebook.

2.0 Poor

Verified traveller, Feb 2026

AUA

ORD

Horrible Flight significantly delayed. Not due to united issue. But trying to rebook connection flight and get information about overnight accommodation was difficult. Agent did not seem to care or have any interest to help.

Everything you need to know for your flight from Calgary to San Francisco

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YYC - SFO

C$ 175 Find Cheap United Airlines Flights from Calgary to San Francisco

Search hundreds of travel sites at once for deals on United Airlines flights from Calgary to San Francisco

Cheap United Airlines Flight Deals from Calgary to San Francisco

Recent round-trip United Airlines flight deals from Calgary to San Francisco

Recent one-way United Airlines flight deals from Calgary to San Francisco

Recent last minute United Airlines flight deals from Calgary to San Francisco

Recent direct United Airlines flight deals from Calgary to San Francisco

Good to know

When to Book Flights with United Airlines from Calgary to San Francisco

FAQs for flying to San Francisco with United Airlines

How far in advance should I book tickets for a flight with United Airlines from Calgary to San Francisco?

Generally, when trying to get a below-average price for your ticket, try to book around 7 days before departure. For the cheapest possible price, our data suggests booking 43 days before departure.

Is United Airlines the cheapest airline to fly with from Calgary to San Francisco?

With an average price of C$ 323 return, United Airlines is not the cheapest airline to fly from Calgary to San Francisco with. Instead, for the lowest price, our data suggests flying with Delta, where a return flight costs C$ 269 on average.

What is the cheapest United Airlines flight from Calgary to San Francisco?

In the last 3 days, the lowest price for a flight with United Airlines from Calgary to San Francisco was C$ 194 for a return flight and C$ 183 for a one-way flight.

Does United Airlines fly direct to San Francisco from Calgary?

Yes, United Airlines does offer direct flights for the route, with around 3 flights per week.

What’s the cheapest day of the week to fly from Calgary to San Francisco with United Airlines?

On average, the cheapest day of the week to fly from Calgary to San Francisco with United Airlines is Monday, when prices are around C$ 146. The most expensive day is generally Saturday, when the average price is around C$ 243.

What’s the cheapest month to fly from Calgary to San Francisco with United Airlines?

The cheapest month for United Airlines flights to San Francisco from Calgary is generally May, where plane tickets cost C$ 179 on average. If possible, try to avoid the most expensive months of January and August, when tickets cost C$ 377 and C$ 427 respectively.

United Airlines Customer Reviews

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Everything you need to know for your flight from Calgary to San Francisco

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Cabin classes available on flights to Calgary. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.

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The most popular destinations for flights with United Airlines according to clicks from KAYAK users. Prices are the lowest found on KAYAK over the last 7 days. Price and availability is not guaranteed.