SFO - ALO

$566 Find Cheap Flights from San Francisco to Waterloo

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to Waterloo departing on 10/7. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Waterloo

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Waterloo, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to Waterloo, as well as popular online travel agencies
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Everything you should know

Cheapest round-trip
$566
American Airlines
Wed 10/7Wed 10/21
SFO - ALO • 2 stops
Nonstop flights
Not available
There are currently no direct flights between San Francisco and Waterloo. You'll need at least 1 connection.
Insights
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Insights
Top layover airports
Denver (DEN)
Cheapest • Avg $284 (round-trip)
Denver (DEN)
Shortest trip • 5h 38m (one-way)
Insights
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We hope you love your trip to Waterloo!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from San Francisco to Waterloo (SFO-ALO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco to Waterloo that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from San Francisco to Waterloo

Wed, Oct 7 - Wed, Oct 21
American Airlines Logo
5:54 am - 11:19 pm
SFO
-
ALO
15h 25m
2 stops
American Airlines Logo
4:30 pm - 9:26 pm
ALO
-
SFO
6h 56m
1 stop
$566American Airlines
Wed, Oct 7 - Sat, Oct 17
American Airlines Logo
5:54 am - 11:19 pm
SFO
-
ALO
15h 25m
2 stops
American Airlines Logo
6:04 am - 2:59 pm
ALO
-
SFO
10h 55m
2 stops
$571American Airlines
Thu, Oct 8 - Wed, Oct 21
American Airlines Logo
1:19 pm - 11:19 pm
SFO
-
ALO
8h 00m
1 stop
American Airlines Logo
4:30 pm - 9:26 pm
ALO
-
SFO
6h 56m
1 stop
$605American Airlines
Wed, Oct 7 - Fri, Oct 23
American Airlines Logo
5:54 am - 11:19 pm
SFO
-
ALO
15h 25m
2 stops
American Airlines Logo
6:04 am - 10:46 am
ALO
-
SFO
6h 42m
1 stop
$615American Airlines
Wed, Oct 7 - Fri, Oct 23
American Airlines Logo
5:54 am - 11:19 pm
SFO
-
ALO
15h 25m
2 stops
American Airlines Logo
6:04 am - 5:53 pm
ALO
-
SFO
13h 49m
2 stops
$620American Airlines
Sat, Oct 10 - Wed, Oct 21
American Airlines Logo
7:30 am - 11:19 pm
SFO
-
ALO
13h 49m
2 stops
American Airlines Logo
6:04 am - 10:46 am
ALO
-
SFO
6h 42m
1 stop
$629American Airlines
Wed, Oct 7 - Tue, Oct 20
American Airlines Logo
5:54 am - 11:19 pm
SFO
-
ALO
15h 25m
2 stops
American Airlines Logo
6:04 am - 6:39 pm
ALO
-
SFO
14h 35m
2 stops
$634American Airlines
Wed, Oct 7 - Sat, Oct 17
American Airlines Logo
2:56 pm - 11:19 pm
SFO
-
ALO
6h 23m
1 stop
American Airlines Logo
4:30 pm - 9:26 pm
ALO
-
SFO
6h 56m
1 stop
$636American Airlines
Sun, May 24 - Fri, May 29
American Airlines Logo
10:07 am - 12:10 am
SFO
-
ALO
12h 03m
2 stops
American Airlines Logo
3:02 pm - 9:26 am
ALO
-
SFO
20h 24m
1 stop
$638American Airlines
Sun, May 24 - Fri, May 29
American Airlines Logo
10:07 am - 12:10 am
SFO
-
ALO
12h 03m
2 stops
American Airlines Logo
3:02 pm - 10:06 pm
ALO
-
SFO
9h 04m
2 stops
$642American Airlines
Booking Insights

KAYAK's insights & trends for San Francisco to Waterloo flights

Get data-powered insights and trends into flights from San Francisco to Waterloo to help you find the cheapest flights, the best time to fly and much more.

What is the most popular layover airport when flying from San Francisco to Waterloo?

Percentage of 1-stop round-trip flights from San Francisco to Waterloo chosen by KAYAK users via each layover airport in the last 12 months (only includes trips with the same layover airport on both legs).

Chicago (ORD) is the top choice – 79% of KAYAK users who clicked on 1-stop flights from San Francisco to Waterloo picked an itinerary connecting there.

What is the cheapest layover airport when flying from San Francisco to Waterloo?

Average round-trip price for 1-stop flights from San Francisco to Waterloo clicked by KAYAK users in the last 12 months (only includes trips with the same layover airport on both legs).

Flights via Denver (DEN) offer the most affordable fares, with an average round-trip price of $284.

Which layover airport offers the shortest total travel time from San Francisco to Waterloo?

Shortest average total travel time for 1-stop one-way flights from San Francisco to Waterloo via different layover airports, based on KAYAK user data from the last 12 months.

Consider flying via Denver (DEN) for the shortest journey. The average one-way travel time for flights connecting there is 5h 38m.

Which layover airport has the quickest connection when flying from San Francisco to Waterloo?

Average layover duration at different layover airports for 1-stop one-way flights from San Francisco to Waterloo, based on KAYAK user data from the last 12 months.

If you prefer a quick connection, Denver (DEN) often has the shortest layovers from San Francisco to Waterloo, with an average of 1h 16m.

Find deals

Good to know

Cheapest flight$566
Flight from San Francisco to Waterloo

When to book flights from San Francisco to Waterloo

Are your dates flexible? Find out the best times to travel from San Francisco to Waterloo based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from San Francisco to Waterloo

  • What is the cheapest flight from San Francisco to Waterloo?

    In the last 3 days, the lowest price for a flight from San Francisco to Waterloo was $566 for a round-trip ticket.

  • Do I need a passport to fly between San Francisco and Waterloo?

    No

  • Which aircraft models fly most regularly from San Francisco to Waterloo?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from San Francisco to Waterloo?

    oneworld is the only airline alliance operating flights between San Francisco and Waterloo.

  • How does KAYAK find such low prices on flights from San Francisco to Waterloo?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from San Francisco to Waterloo.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from San Francisco to Waterloo?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Waterloo from San Francisco is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Francisco to Waterloo?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Waterloo with an airline and back to San Francisco with another airline. Booking your flights between San Francisco and ALO can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Francisco to Waterloo?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Waterloo from San Francisco up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from San Francisco to Waterloo

 
See real verified KAYAK customer reviews for airlines flying from San Francisco to Waterloo. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from San Francisco to Waterloo? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.1
American AirlinesOverall score based on 11681 reviews
7.5Boarding
7.9Crew
6.9Entertainment
7.2Comfort
6.4Food
Airline reviews

Left early arrived early..right amount of talking from pilots..of course had to love the biscuit and water!

10.0 ExcellentStan, Apr 2026
LAX - PHL
Read more American Airlines reviews

Left early arrived early..right amount of talking from pilots..of course had to love the biscuit and water!

Boarding gate at LAX was too crowded—two gates next to one another

On time departure and early arrival. Flight attendant very nice.

The SFO Lounge crew were amazing. The bartender Faris was great. Thanks!

Was not able to do a online check-in because the American Airlines system doesn't store our visa or other passport information, allowing us to have a trouble-free check-in. We were forced to have to check-in at the counter which Changes are upgrade status given that we were not able to check in much earlier.

Good flight, seated and had a water within 5 minutes. Crew was hospitable.

We left at 1030 am pacific from LA and supposed to land at 7 pm Eastern in NY. They made a detour, stopped in Philadelphia and didn’t land till 1130 PM Eastern!!! Worst flight experience with no pilot communication with no explanation as to what was going on. Everyone was very frustrated to say the least.

Flight boarded from Gate 159B, the farthest gate in the LAX Bradley Terminal. While the flight operated on time, the first class cabin attendant made no recognition of my being an Advantage Executive Platinum member.

The flight itself was excellent but the gate attendant made me check my carryon since she said it was an inch too big. I’ve had no problems with this carryon on recent flights on Qantas, Delta, Austrian, Southwest Airlines even though the overhead bins are the same size. there were other carryons in the bins that also looked larger than mine and there was room left in the bins for more. When I picked up my carryon from baggage claim one of the wheels had broken off.

I was in last row so that is never great bc the person in front of me leaned his seat all the way back into me.

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

Information on your arrival and departure airports

San Francisco (SFO)
Waterloo (ALO)