$423+ Cheap flights from Waterloo, IA to San Francisco (ALO - SFO)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/24. Fares are subject to change and may not be available on all flights or dates of travel.
ALO — SFO
Oct 17 — Oct 241
Round-trip
1 adult, Economy
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Find cheap flights from Waterloo to San Francisco with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Waterloo to San Francisco
Cheapest
Best
Last-minute
One-way
Cheapest flights from Waterloo to San FranciscoExplore the most affordable flight options available from Waterloo to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2026.
Explore the most affordable flight options available from Waterloo to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2026.
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:07 am -
1 stop12h 15m
Tue 10/2710:33 am -
1 stop11h 18m
Deal found 9/14![American Airlines logo]()
$423
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/163:39 pm -
1 stop21h 50m
Mon 10/197:10 am -
1 stop14h 41m
Deal found 9/14![American Airlines logo]()
$439
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/165:00 am -
1 stop15h 14m
Mon 12/217:40 am -
1 stop14h 49m
Deal found 9/14![American Airlines logo]()
$490
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:07 am -
1 stop20h 23m
Sun 10/116:00 am -
1 stop15h 51m
Deal found 9/14![American Airlines logo]()
$602
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/295:00 am -
1 stop9h 39m
Sat 10/32:58 pm -
1 stop7h 01m
Deal found 9/14![American Airlines logo]()
$612
This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/305:00 am -
1 stop8h 29m
Sun 10/42:58 pm -
1 stop7h 01m
Deal found 9/15![American Airlines logo]()
$669
Best flights from Waterloo to San FranciscoDiscover carefully curated flight deals from Waterloo to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2026.
Discover carefully curated flight deals from Waterloo to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2026.
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:07 am -
1 stop12h 15m
Tue 10/2710:33 am -
1 stop11h 18m
Deal found 9/14![American Airlines logo]()
$423
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:07 am -
2 stops13h 55m
Mon 10/196:00 am -
1 stop15h 51m
Deal found 9/14![American Airlines logo]()
$525
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:07 am -
2 stops13h 55m
Thu 10/225:27 pm -
1 stop19h 42m
Deal found 9/14![American Airlines logo]()
$525
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/295:00 am -
1 stop9h 39m
Sat 10/32:58 pm -
1 stop7h 01m
Deal found 9/14![American Airlines logo]()
$612
This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/305:00 am -
2 stops14h 51m
Sun 10/47:00 am -
1 stop14h 59m
Deal found 9/15![American Airlines logo]()
$769
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:07 am -
2 stops11h 30m
Sun 10/1111:13 am -
2 stops10h 38m
Deal found 9/14![American Airlines logo]()
$905
Last-minute flights from Waterloo to San FranciscoDiscover last-minute flight deals from Waterloo to San Francisco. Data last updated September 17, 2026 and is based on user searches.
Discover last-minute flight deals from Waterloo to San Francisco. Data last updated September 17, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/295:00 am -
1 stop9h 39m
Sat 10/32:58 pm -
1 stop7h 01m
Deal found 9/14![American Airlines logo]()
$612
This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/305:00 am -
1 stop8h 29m
Sun 10/42:58 pm -
1 stop7h 01m
Deal found 9/15![American Airlines logo]()
$669
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/96:07 am -
1 stop20h 23m
Sun 10/116:00 am -
1 stop15h 51m
Deal found 9/14![American Airlines logo]()
$602
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/163:39 pm -
1 stop21h 50m
Mon 10/197:10 am -
1 stop14h 41m
Deal found 9/14![American Airlines logo]()
$439
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:07 am -
1 stop12h 15m
Tue 10/2710:33 am -
1 stop11h 18m
Deal found 9/14![American Airlines logo]()
$423
One-way flights from Waterloo to San FranciscoSearch for one-way flight options from Waterloo to San Francisco. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.
Search for one-way flight options from Waterloo to San Francisco. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.
This American Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/265:00 am -
1 stop8h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![American Airlines logo]()
$534
Find flight deals from Waterloo to San Francisco
Discover tips and strategies to find the most affordable flight options for your journey from Waterloo (ALO) to San Francisco (SFO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 17, 2026.
Round-trip from | $423 (American Airlines) |
|---|
Cheapflights Fare Finder
Customize your flight search to find flights from Waterloo to San Francisco 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, Cheapflights users made 7,457,451 searches. Data last updated September 17, 2026.
Use the filters below to find and compare flights from Waterloo to San Francisco that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
WaterlooSan Francisco
ALO Waterloo - SFO San Francisco
ALOSFO
Waterloo
Sat 10/24
6:07 am-4:22 pm
1 stop12h 15m
San Francisco
Tue 10/27
10:33 am-11:51 pm
1 stop11h 18m
$423
WaterlooSan Francisco
ALO Waterloo - SFO San Francisco
ALOSFO
Waterloo
Fri 10/16
6:07 am-6:02 pm
2 stops13h 55m
San Francisco
Mon 10/19
6:00 am-11:51 pm
1 stop15h 51m
$525
WaterlooSan Francisco
ALO Waterloo - SFO San Francisco
ALOSFO
Waterloo
Fri 10/16
6:07 am-6:02 pm
2 stops13h 55m
San Francisco
Thu 10/22
5:27 pm-3:09 pm
1 stop19h 42m
$525
Quickest round-trip
WaterlooSan Francisco
ALO Waterloo - SFO San Francisco
ALOSFO
Waterloo
Sat 9/26
5:00 am-11:29 am
1 stop8h 29m
San Francisco
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$534
WaterlooSan Francisco
ALO Waterloo - SFO San Francisco
ALOSFO
Waterloo
Tue 9/29
5:00 am-12:39 pm
1 stop9h 39m
San Francisco
Sat 10/3
2:58 pm-11:59 pm
1 stop7h 01m
$612
WaterlooSan Francisco
ALO Waterloo - SFO San Francisco
ALOSFO
Waterloo
Wed 9/30
5:00 am-5:51 pm
2 stops14h 51m
San Francisco
Sun 10/4
7:00 am-11:59 pm
1 stop14h 59m
$769
WaterlooSan Francisco
ALO Waterloo - SFO San Francisco
ALOSFO
Waterloo
Fri 10/9
6:07 am-3:37 pm
2 stops11h 30m
San Francisco
Sun 10/11
11:13 am-11:51 pm
2 stops10h 38m
$905
Sorted by cheapest first
Best time to book a flight from Waterloo to San Francisco
Have a flexible travel schedule? Discover the best time to fly to San Francisco from Waterloo with our price prediction graph.
ALO-SFO
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
Find useful and relevant information for your journey from Waterloo to San Francisco. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near San Francisco?
Book flights to San Francisco if you plan to visit one of these locationsSouth San Francisco
Santa Clara
Santa Cruz
Walnut Creek
Emeryville
San Bruno
Burlingame
Rancho Cordova
Roseville
Fairfield
Hayward
Cupertino
Newark
San Ramon
Redwood City
Manteca
Vallejo
San Carlos
Turlock
Davis
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