Latest deals
Insights
When to book
FAQs
Price Alerts

Cheap flights from San Francisco to Saint John from $725

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Saint John departing on 12/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from San Francisco to Saint John

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
6:30 am - 11:29 pmSFO-YSJ
12h 59m2 stops
United Airlines Logo
4:15 pm - 9:22 pmYSJ-SFO
9h 07m1 stop
$725United Airlines
Find Deal
Thu, Dec 4 - Thu, Dec 11
United Airlines Logo
6:30 am - 11:29 pmSFO-YSJ
12h 59m2 stops
United Airlines Logo
4:15 pm - 1:15 amYSJ-SFO
13h 00m2 stops
$740United Airlines
Find Deal
Thu, Dec 4 - Thu, Dec 11
United Airlines Logo
8:50 am - 11:29 pmSFO-YSJ
10h 39m1 stop
United Airlines Logo
5:40 am - 1:30 pmYSJ-SFO
11h 50m1 stop
$1,079United Airlines
Find Deal
Thu, Dec 4 - Thu, Dec 11

United Airlines flights from San Francisco to Saint John

Our best United Airlines deals on San Francisco to Saint John flight tickets
United Airlines
Dec 4
SFO6:30 amSan Francisco
12h 59m
2 stops
YSJ11:29 pmSaint John
Dec 11
YSJ4:15 pmSaint John
9h 07m
1 stop
SFO9:22 pmSan Francisco
$725
Find similar
United Airlines
Dec 4
SFO6:30 amSan Francisco
12h 59m
2 stops
YSJ11:29 pmSaint John
Dec 11
YSJ4:15 pmSaint John
13h 00m
2 stops
SFO1:15 amSan Francisco
$740
Find similar
United Airlines
Dec 4
SFO8:50 amSan Francisco
10h 39m
1 stop
YSJ11:29 pmSaint John
Dec 11
YSJ5:40 amSaint John
11h 50m
1 stop
SFO1:30 pmSan Francisco
$1,079
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Francisco to Saint John that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated October 21, 2025.
Use the filters below to find and compare flights from San Francisco to Saint John that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoSaint John

SFO - YSJ

SFOYSJ

San Francisco

Thu 12/4

6:30 am-11:29 pm

2 stops12h 59m

Saint John

Thu 12/11

4:15 pm-9:22 pm

1 stop9h 07m

$725

San FranciscoSaint John

SFO - YSJ

SFOYSJ

San Francisco

Thu 12/4

6:30 am-11:29 pm

2 stops12h 59m

Saint John

Thu 12/11

4:15 pm-1:15 am

2 stops13h 00m

$740

San FranciscoSaint John

SFO - YSJ

SFOYSJ

San Francisco

Thu 12/4

8:50 am-11:29 pm

1 stop10h 39m

Saint John

Thu 12/11

5:40 am-1:30 pm

1 stop11h 50m

$1,079

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

See travel insights to Saint John from

How to get the cheapest flight ticket from San Francisco to Saint John

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Can stopping save me money on San Francisco to Saint John flights?

You could potentially save up to 27% on your flight if you consider stops on a San Francisco to Saint John flight.

When to book flights from San Francisco to Saint John

Are you open to changing your travel dates? Check out the ideal times to fly from San Francisco to Saint John according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Francisco to Saint John (SFO to YSJ) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Francisco to Saint John

Direct flights

None
There are no direct flights from San Francisco to Saint John. There are no popular flight routes from San Francisco to Saint John.
Search flight deals

  • How far is San Francisco to Saint John by plane?

    The straight-line distance from San Francisco to Saint John is 2897.4 mi. In terms of flight time, this usually takes a little over 10h 39m.

  • When did momondo last update prices for flights from San Francisco Airport to Saint John Airport?

    Prices for flights from San Francisco Airport to Saint John Airport were last updated today.

  • How old do you have to be to fly from San Francisco Airport to Saint John Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Francisco Airport to Saint John Airport.

  • What documentation or ID do you need to fly to Saint John Airport?

    The travel and health documents required for your trip to Saint John Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Saint John Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

Why should I use momondo to find a flight deal from San Francisco to Saint John?

Finding the right flight to Saint John from San Francisco is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Saint John quick and easy, saving you time and money.

Can I find flights from San Francisco to Saint John with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for San Francisco to Saint John flights to just show those with flexible booking policies.

How can momondo help me find flights from San Francisco to Saint John?

momondo helps you find the best flight between San Francisco and Saint John by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from San Francisco to Saint John right now. Can momondo alert me if prices change?

Yes. momondo can track prices for San Francisco to Saint John flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Saint John 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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 11/20
Thu 11/27
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Canada