$482+ Cheap flights from San Diego to Waterloo, IA (SAN - ALO)
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 7/14. Fares are subject to change and may not be available on all flights or dates of travel.
SAN — ALO
May 28 — Jun 41
Round-trip
1 adult, Economy
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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
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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 San Diego to Waterloo
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Best
Last-minute
Cheapest flights from San Diego to WaterlooExplore the most affordable flight options available from San Diego to Waterloo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 28, 2026.
Explore the most affordable flight options available from San Diego to Waterloo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 28, 2026.
This American Airlines deal was found by Cheapflights users on 4/27. 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 7/141:11 pm
SAN
- ALO
1 stop9h 18m
American Airlines
Tue 7/215:06 am
ALO
- SAN
1 stop9h 19m
American Airlines
Deal found 4/27![American Airlines logo]()
$482
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.
Tue 7/141:11 pm
SAN
- ALO
1 stop9h 18m
American Airlines
Wed 7/223:23 pm
ALO
- SAN
1 stop7h 59m
American Airlines
Deal found 4/28![American Airlines logo]()
$532
This American Airlines deal was found by Cheapflights users on 4/24. 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 5/106:15 am
SAN
- ALO
1 stop15h 40m
American Airlines
Thu 5/145:40 am
ALO
- SAN
1 stop10h 38m
American Airlines
Deal found 4/24![American Airlines logo]()
$1,008
Best flights from San Diego to WaterlooDiscover carefully curated flight deals from San Diego to Waterloo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 28, 2026.
Discover carefully curated flight deals from San Diego to Waterloo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 28, 2026.
This American Airlines deal was found by Cheapflights users on 4/24. 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 7/141:11 pm
SAN
- ALO
1 stop8h 48m
American Airlines
Wed 7/223:22 pm
ALO
- SAN
1 stop8h 09m
American Airlines
Deal found 4/24![American Airlines logo]()
$482
This American Airlines deal was found by Cheapflights users on 4/27. 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 7/141:11 pm
SAN
- ALO
1 stop9h 18m
American Airlines
Tue 7/215:06 am
ALO
- SAN
1 stop9h 19m
American Airlines
Deal found 4/27![American Airlines logo]()
$482
Last-minute flights from San Diego to WaterlooDiscover last-minute flight deals from San Diego to Waterloo. Data last updated April 28, 2026 and is based on user searches.
Discover last-minute flight deals from San Diego to Waterloo. Data last updated April 28, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 4/24. 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 5/106:15 am
SAN
- ALO
1 stop15h 40m
American Airlines
Thu 5/145:40 am
ALO
- SAN
1 stop10h 38m
American Airlines
Deal found 4/24![American Airlines logo]()
$1,008
Find flight deals from San Diego to Waterloo
Discover tips and strategies to find the most affordable flight options for your journey from San Diego (SAN) 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 April 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $482 (American Airlines) |
Cheapflights Fare Finder
Customize your flight search to find flights from San Diego 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 April 28, 2026.
Use the filters below to find and compare flights from San Diego to Waterloo that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
San DiegoWaterloo
SAN - ALO
SANALO
San Diego
Tue 7/14
1:11 pm-11:59 pm
1 stop8h 48m
Waterloo
Wed 7/22
3:22 pm-9:31 pm
1 stop8h 09m
$482
San DiegoWaterloo
SAN - ALO
SANALO
San Diego
Tue 7/14
1:11 pm-12:29 am
1 stop9h 18m
Waterloo
Tue 7/21
5:06 am-12:25 pm
1 stop9h 19m
$482
Sorted by cheapest first
- Most accurate provider: When it comes to deals on San Diego-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 Diego-Waterloo, Iowa flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from San Diego-Waterloo, Iowa flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on San Diego-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 Diego-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 Diego to Waterloo
Have a flexible travel schedule? Discover the best time to fly to Waterloo from San Diego with our price prediction graph.
SAN-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.
Related info for your journey
Find useful and relevant information for your journey from San Diego 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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