$484+ Cheap flights from San Francisco to Waterloo, IA (SFO - ALO)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — ALO
Jun 1 — Jun 81
Round-trip
1 adult, Economy
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Find cheap flights from San Francisco to Waterloo with Cheapflights
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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
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Best
Last-minute
One-way
Cheapest flights from San Francisco to WaterlooExplore the most affordable flight options available from San Francisco to Waterloo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 2, 2026.
Explore the most affordable flight options available from San Francisco to Waterloo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 2, 2026.
This American Airlines deal was found by Cheapflights users on 5/2. 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 10/76:14 am
SFO
- ALO
1 stop6h 07m
American Airlines
Thu 10/226:04 am
ALO
- SFO
1 stop6h 42m
American Airlines
Deal found 5/2![American Airlines logo]()
$556
This American Airlines deal was found by Cheapflights users on 4/28. 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 10/75:54 am
SFO
- ALO
2 stops15h 25m
American Airlines
Wed 10/214:30 pm
ALO
- SFO
1 stop6h 56m
American Airlines
Deal found 4/28![American Airlines logo]()
$566
This American Airlines deal was found by Cheapflights users on 4/28. 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 10/75:54 am
SFO
- ALO
2 stops15h 25m
American Airlines
Sat 10/176:04 am
ALO
- SFO
2 stops10h 55m
American Airlines
Deal found 4/28![American Airlines logo]()
$571
This American Airlines deal was found by Cheapflights users on 4/28. 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 10/92:56 pm
SFO
- ALO
1 stop6h 23m
American Airlines
Wed 10/216:04 am
ALO
- SFO
1 stop6h 42m
American Airlines
Deal found 4/28![American Airlines logo]()
$605
This American Airlines deal was found by Cheapflights users on 4/28. 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.
Thu 10/81:19 pm
SFO
- ALO
1 stop8h 00m
American Airlines
Sat 10/176:04 am
ALO
- SFO
2 stops10h 55m
American Airlines
Deal found 4/28![American Airlines logo]()
$615
This American Airlines deal was found by Cheapflights users on 4/28. 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 10/75:54 am
SFO
- ALO
2 stops15h 25m
American Airlines
Fri 10/236:04 am
ALO
- SFO
2 stops13h 49m
American Airlines
Deal found 4/28![American Airlines logo]()
$620
This American Airlines deal was found by Cheapflights users on 4/28. 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 10/75:54 am
SFO
- ALO
2 stops15h 25m
American Airlines
Tue 10/206:04 am
ALO
- SFO
1 stop6h 42m
American Airlines
Deal found 4/28![American Airlines logo]()
$629
This American Airlines deal was found by Cheapflights users on 5/2. 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 10/1310:15 am
SFO
- ALO
2 stops11h 04m
American Airlines
Wed 10/216:04 am
ALO
- SFO
2 stops13h 49m
American Airlines
Deal found 5/2![American Airlines logo]()
$635
This American Airlines deal was found by Cheapflights users on 4/28. 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.
Sun 5/2410:07 am
SFO
- ALO
2 stops12h 03m
American Airlines
Fri 5/293:02 pm
ALO
- SFO
1 stop20h 24m
American Airlines
Deal found 4/28![American Airlines logo]()
$638
Best flights from San Francisco to WaterlooDiscover carefully curated flight deals from San Francisco to Waterloo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 2, 2026.
Discover carefully curated flight deals from San Francisco to Waterloo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 2, 2026.
This American Airlines deal was found by Cheapflights users on 5/1. 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 10/1310:32 pm
SFO
- ALO
2 stops13h 49m
American Airlines
Mon 10/196:04 am
ALO
- SFO
2 stops14h 39m
American Airlines
Deal found 5/1![American Airlines logo]()
$571
This American Airlines deal was found by Cheapflights users on 5/2. 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 10/76:14 am
SFO
- ALO
1 stop6h 07m
American Airlines
Fri 10/236:04 am
ALO
- SFO
2 stops10h 55m
American Airlines
Deal found 5/2![American Airlines logo]()
$615
This American Airlines deal was found by Cheapflights users on 5/1. 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 10/910:15 am
SFO
- ALO
2 stops11h 04m
American Airlines
Mon 10/196:04 am
ALO
- SFO
2 stops14h 39m
American Airlines
Deal found 5/1![American Airlines logo]()
$620
This American Airlines deal was found by Cheapflights users on 5/1. 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.
Sun 10/115:54 am
SFO
- ALO
2 stops15h 25m
American Airlines
Wed 10/216:04 am
ALO
- SFO
2 stops13h 49m
American Airlines
Deal found 5/1![American Airlines logo]()
$620
This American Airlines deal was found by Cheapflights users on 4/28. 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 10/72:56 pm
SFO
- ALO
1 stop6h 23m
American Airlines
Sat 10/174:30 pm
ALO
- SFO
1 stop6h 56m
American Airlines
Deal found 4/28![American Airlines logo]()
$636
This American Airlines deal was found by Cheapflights users on 4/28. 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.
Sun 5/2410:07 am
SFO
- ALO
2 stops12h 03m
American Airlines
Fri 5/293:02 pm
ALO
- SFO
1 stop20h 24m
American Airlines
Deal found 4/28![American Airlines logo]()
$638
This American Airlines deal was found by Cheapflights users on 5/2. 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.
Thu 10/86:14 am
SFO
- ALO
1 stop6h 07m
American Airlines
Sat 10/176:04 am
ALO
- SFO
1 stop6h 42m
American Airlines
Deal found 5/2![American Airlines logo]()
$676
This American Airlines deal was found by Cheapflights users on 5/1. 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.
Sun 10/116:14 am
SFO
- ALO
1 stop6h 07m
American Airlines
Fri 10/234:30 pm
ALO
- SFO
2 stops19h 41m
American Airlines
Deal found 5/1![American Airlines logo]()
$695
This American Airlines deal was found by Cheapflights users on 4/28. 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.
Mon 10/126:14 am
SFO
- ALO
1 stop6h 07m
American Airlines
Thu 10/226:04 am
ALO
- SFO
1 stop6h 42m
American Airlines
Deal found 4/28![American Airlines logo]()
$717
This American Airlines deal was found by Cheapflights users on 4/28. 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.
Sun 5/2412:26 am
SFO
- ALO
2 stops12h 06m
American Airlines
Fri 5/293:02 pm
ALO
- SFO
1 stop20h 24m
American Airlines
Deal found 4/28![American Airlines logo]()
$1,507
Last-minute flights from San Francisco to WaterlooDiscover last-minute flight deals from San Francisco to Waterloo. Data last updated May 2, 2026 and is based on user searches.
Discover last-minute flight deals from San Francisco to Waterloo. Data last updated May 2, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 4/30. 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.
Mon 5/111:28 pm
SFO
- ALO
1 stop8h 27m
American Airlines
Thu 5/142:23 pm
ALO
- SFO
1 stop9h 37m
American Airlines
Deal found 4/30![American Airlines logo]()
$1,108
This American Airlines deal was found by Cheapflights users on 4/28. 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.
Sun 5/2410:07 am
SFO
- ALO
2 stops12h 03m
American Airlines
Fri 5/293:02 pm
ALO
- SFO
1 stop20h 24m
American Airlines
Deal found 4/28![American Airlines logo]()
$638
This American Airlines deal was found by Cheapflights users on 4/28. 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.
Sun 5/2412:26 am
SFO
- ALO
2 stops12h 06m
American Airlines
Fri 5/293:02 pm
ALO
- SFO
1 stop20h 24m
American Airlines
Deal found 4/28![American Airlines logo]()
$1,507
One-way flights from San Francisco to WaterlooSearch for one-way flight options from San Francisco to Waterloo. Find affordable one-way fares based on user searches. Data last updated May 2, 2026.
Search for one-way flight options from San Francisco to Waterloo. Find affordable one-way fares based on user searches. Data last updated May 2, 2026.
This American Airlines deal was found by Cheapflights users on 5/1. 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 5/193:38 pm
SFO
- ALO
1 stop20h 15m
American Airlines
Deal found 5/1![American Airlines logo]()
$484
This American Airlines deal was found by Cheapflights users on 5/1. 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.
Mon 5/183:38 pm
SFO
- ALO
1 stop20h 15m
American Airlines
Deal found 5/1![American Airlines logo]()
$514
Find flight deals from San Francisco to Waterloo
Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Waterloo (ALO). 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 May 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $556 (American Airlines) |
One-way from | $484 (American Airlines) |
Cheapflights Fare Finder
Customize your flight search to find flights from San Francisco to Waterloo 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 2,558,603 searches. Data last updated May 2, 2026.
Use the filters below to find and compare flights from San Francisco to Waterloo that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San FranciscoWaterloo
SFO - ALO
SFOALO
San Francisco
Tue 10/13
10:32 pm-2:21 pm
2 stops13h 49m
Waterloo
Mon 10/19
6:04 am-6:43 pm
2 stops14h 39m
$571
San FranciscoWaterloo
SFO - ALO
SFOALO
San Francisco
Wed 10/7
6:14 am-2:21 pm
1 stop6h 07m
Waterloo
Fri 10/23
6:04 am-2:59 pm
2 stops10h 55m
$615
San FranciscoWaterloo
SFO - ALO
SFOALO
San Francisco
Fri 10/9
10:15 am-11:19 pm
2 stops11h 04m
Waterloo
Mon 10/19
6:04 am-6:43 pm
2 stops14h 39m
$620
San FranciscoWaterloo
SFO - ALO
SFOALO
San Francisco
Sun 10/11
5:54 am-11:19 pm
2 stops15h 25m
Waterloo
Wed 10/21
6:04 am-5:53 pm
2 stops13h 49m
$620
San FranciscoWaterloo
SFO - ALO
SFOALO
San Francisco
Wed 10/7
2:56 pm-11:19 pm
1 stop6h 23m
Waterloo
Sat 10/17
4:30 pm-9:26 pm
1 stop6h 56m
$636
San FranciscoWaterloo
SFO - ALO
SFOALO
San Francisco
Sun 5/24
10:07 am-12:10 am
2 stops12h 03m
Waterloo
Fri 5/29
3:02 pm-9:26 am
1 stop20h 24m
$638
Quickest round-trip
San FranciscoWaterloo
SFO - ALO
SFOALO
San Francisco
Thu 10/8
6:14 am-2:21 pm
1 stop6h 07m
Waterloo
Sat 10/17
6:04 am-10:46 am
1 stop6h 42m
$676
San FranciscoWaterloo
SFO - ALO
SFOALO
San Francisco
Sun 10/11
6:14 am-2:21 pm
1 stop6h 07m
Waterloo
Fri 10/23
4:30 pm-10:11 am
2 stops19h 41m
$695
San FranciscoWaterloo
SFO - ALO
SFOALO
San Francisco
Mon 10/12
6:14 am-2:21 pm
1 stop6h 07m
Waterloo
Thu 10/22
6:04 am-10:46 am
1 stop6h 42m
$717
San FranciscoWaterloo
SFO - ALO
SFOALO
San Francisco
Sun 5/24
12:26 am-2:32 pm
2 stops12h 06m
Waterloo
Fri 5/29
3:02 pm-9:26 am
1 stop20h 24m
$1,507
Showing 1-10 of 12 resultsSorted by cheapest first
- Most accurate provider: When it comes to deals on San Francisco-Waterloo, Iowa flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on San Francisco-Waterloo, Iowa flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Francisco-Waterloo, Iowa flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Francisco-Waterloo, Iowa flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Francisco-Waterloo, Iowa flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from San Francisco to Waterloo
Have a flexible travel schedule? Discover the best time to fly to Waterloo from San Francisco with our price prediction graph.
SFO-ALO
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.
Reviews of airlines servicing Waterloo
Get insights into the airlines that provide service to Waterloo. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Waterloo. Reviews last updated May 2, 2026.
Get a feel of what it's like to fly with American Airlines from San Francisco to Waterloo by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
7.9
Comfort
7.2
Food
6.4
Overall
7.1
Entertainment
6.9
Boarding
7.5
Reviews
1 / 20
2.0
MediocreAnonymous,Apr 2026
DFW - BDL
Crew
7.9
Comfort
7.2
Food
6.4
Overall
7.1
Entertainment
6.9
Boarding
7.5
Reviews
1 / 20
2.0
MediocreAnonymous,Apr 2026
DFW - BDL
Related info for your journey
Find useful and relevant information for your journey from San Francisco to Waterloo. 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 Waterloo?
Book flights to Waterloo if you plan to visit one of these locationsCedar Falls
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San Francisco and Waterloo flights
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Top airline flying from San Francisco to Waterloo
Discover the top airline that operate flights from San Francisco to Waterloo. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$298 | Average$497 | FlexibilityNo cancel fee | On-time71% |