ALO - SFO

$317 Find Cheap Flights from Waterloo to San Francisco - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Waterloo to San Francisco departing on 9/27. 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

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Everything you should know

Cheapest round-trip
$429
American Airlines
Sat 8/22Sat 8/29
ALO - SFO • 1 stop
Cheapest one-way
$317
American Airlines
Sun 9/27
ALO - SFO • 1 stop
Nonstop flights
Not available
There are currently no direct flights between Waterloo and San Francisco. You'll need at least 1 connection.
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Top layover airports
Denver (DEN)
Cheapest • Avg $378 (round-trip)
Denver (DEN)
Shortest trip • 6h 31m (one-way)
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Flight Deals

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

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Waterloo to San Francisco 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 Waterloo to San Francisco

Sat, Aug 22 - Sat, Aug 29
American Airlines Logo
5:00 am - 11:45 pm
ALO
-
SFO
20h 45m
1 stop
American Airlines Logo
10:53 pm - 2:52 pm
SFO
-
ALO
13h 59m
1 stop
$429American Airlines
Wed, Sep 30 - Tue, Oct 6
American Airlines Logo
5:00 am - 11:56 pm
ALO
-
SFO
20h 56m
1 stop
American Airlines Logo
9:12 am - 11:59 pm
SFO
-
ALO
12h 47m
1 stop
$429American Airlines
Sat, Aug 22 - Sat, Aug 29
American Airlines Logo
5:00 am - 5:49 pm
ALO
-
SFO
14h 49m
2 stops
American Airlines Logo
10:53 pm - 2:52 pm
SFO
-
ALO
13h 59m
1 stop
$489American Airlines
Wed, Sep 30 - Tue, Oct 6
American Airlines Logo
5:00 am - 5:51 pm
ALO
-
SFO
14h 51m
2 stops
American Airlines Logo
9:12 am - 11:59 pm
SFO
-
ALO
12h 47m
1 stop
$489American Airlines
Fri, Aug 21 - Fri, Aug 28
American Airlines Logo
3:23 pm - 11:26 am
ALO
-
SFO
22h 03m
1 stop
American Airlines Logo
7:00 am - 12:22 am
SFO
-
ALO
15h 22m
2 stops
$529American Airlines
Wed, Sep 30 - Tue, Oct 6
American Airlines Logo
5:00 am - 4:09 pm
ALO
-
SFO
13h 09m
2 stops
American Airlines Logo
8:41 am - 11:59 pm
SFO
-
ALO
13h 18m
2 stops
$545American Airlines
Sat, Aug 22 - Sat, Aug 29
American Airlines Logo
5:00 am - 4:02 pm
ALO
-
SFO
13h 02m
2 stops
American Airlines Logo
8:45 am - 12:22 am
SFO
-
ALO
13h 37m
2 stops
$545American Airlines
Fri, Aug 21 - Fri, Aug 28
American Airlines Logo
3:23 pm - 11:26 am
ALO
-
SFO
22h 03m
1 stop
American Airlines Logo
10:58 am - 12:22 am
SFO
-
ALO
11h 24m
1 stop
$559American Airlines
Mon, Sep 28 - Mon, Oct 5
American Airlines Logo
3:29 pm - 4:18 pm
ALO
-
SFO
26h 49m
1 stop
American Airlines Logo
5:27 pm - 11:59 pm
SFO
-
ALO
28h 32m
1 stop
$569American Airlines
Fri, Oct 2 - Tue, Oct 6
American Airlines Logo
3:29 pm - 6:09 pm
ALO
-
SFO
28h 40m
1 stop
American Airlines Logo
9:12 am - 11:59 pm
SFO
-
ALO
12h 47m
1 stop
$569American Airlines
Booking Insights

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

Get data-powered insights and trends into flights from Waterloo to San Francisco 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 Waterloo to San Francisco?

Percentage of 1-stop round-trip flights from Waterloo to San Francisco 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 – 92% of KAYAK users who clicked on 1-stop flights from Waterloo to San Francisco picked an itinerary connecting there.

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

Average round-trip price for 1-stop flights from Waterloo to San Francisco 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 $378.

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

Shortest average total travel time for 1-stop one-way flights from Waterloo to San Francisco 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 6h 31m.

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

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

If you prefer a quick connection, Denver (DEN) often has the shortest layovers from Waterloo to San Francisco, with an average of 0h 59m.

Find deals

Good to know

Cheapest flight

$317
Flight from Waterloo to San Francisco

When to book flights from Waterloo to San Francisco

Are your dates flexible? Find out the best times to travel from Waterloo to San Francisco 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 Waterloo to San Francisco

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

    In the last 5 days, the lowest price for a flight from Waterloo to San Francisco was $317 for a one-way ticket and $429 for a round-trip.

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

    No, a passport isn't needed to fly from Waterloo to San Francisco. However, local authorities might ask for an official ID.

  • Which airports will I be using when flying from Waterloo to San Francisco?

    Waterloo and San Francisco are both served by 1 main airport. You will leave Waterloo from Waterloo and will be arriving at San Francisco.

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

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

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

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

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

    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 Waterloo to San Francisco.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Waterloo 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 Waterloo to San Francisco?

    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 San Francisco with an airline and back to Waterloo with another airline. Booking your flights between Waterloo and SFO 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 Waterloo to San Francisco?

    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 San Francisco from Waterloo 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 Waterloo to San Francisco

 
See real verified KAYAK customer reviews for airlines flying from Waterloo to San Francisco. 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 Waterloo to San Francisco? 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 11845 reviews
7.5Boarding
6.4Food
7.2Comfort
6.8Entertainment
7.9Crew
Airline reviews

Horrible. No AC. No Air inside the plane. We had to deplane twice! It is late almost 5 hrs in total. I almost passed out and about to call 911. I asked the crew to be honest and open the door. The lady next to me was lay down in the floor due to heat and no air inside the plane. I got headaches, can’t wait the replacement flight about midnight Dallas time. I end it up rebook for next day flight and stay overnight using my own pocket in a hotel nearby due to headaches and can’t breath. I still have a headache this morning. Still not decided yes how to file this issue to AA and/or FAA.

2.0 MediocreKandar, Jul 2026
DFW - SFO
Read more American Airlines reviews

Horrible. No AC. No Air inside the plane. We had to deplane twice! It is late almost 5 hrs in total. I almost passed out and about to call 911. I asked the crew to be honest and open the door. The lady next to me was lay down in the floor due to heat and no air inside the plane. I got headaches, can’t wait the replacement flight about midnight Dallas time. I end it up rebook for next day flight and stay overnight using my own pocket in a hotel nearby due to headaches and can’t breath. I still have a headache this morning. Still not decided yes how to file this issue to AA and/or FAA.

Initial flight had an engine overheat - returned to DFW. Had another plane ready, but crew timed out. Had to wait 5h for boarding. Fully boarded and pilot says plane is not flight worthy. Deplane and go to the other end of the terminal. Wait an hour to board third plane because the crew couldn’t leave the second plane because no wheelchairs were brought to remove passengers. Finally take off and there is no catering (in flight service) even in first class. Very much an AA failure.

The flight attendant was very polite and attentive. The food was good.

Was put into a seat right behind the toilet that had no entertainment possible but did have plenty of leg room over noisy part of plane.

Flight: Started on time. Comfortable flight. Arrived on time. Crew: Very cordial and helpful. Drinks and snack was served with a smile. Overall enjoyed the trip. Regards, Hari Doss Chanchala Doss

A first class seat should fit a fat person, and this doesn't. The trays in the armrest are less functional than an ordinary tray in the back of the seat.

Great. Quick and quiet and east. The breakfast choices were a welcome surprise!

This was a horrible experience. For a first class experience, my chair was held together by 3M tape - and I have a photo. The crew weren’t very attentive, somewhat dismissive and forgot my drink and snack, the chair reclined about 3 inches on a 6-hour cross country flight. I was also not informed that there was no lounge available in Newark airport because of renovations, so all around this was one of the worst experiences and I would actively avoid both American and Alaska Air going forward.

Long 5 hour and 45 min flight and only one drink service and cookie snack

Extraordinary service in business class, and very good breakfast and snacks. A really lovely flight.

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

Information on your arrival and departure airports

Waterloo (ALO)
San Francisco (SFO)