Cheap Flights from San Diego (SAN) to Rosario (RSJ)

Popular airlines from San Diego Intl. Airport (SAN) to Rosario, WA (RSJ-Rosario Seaplane Base)

Alternative airports near Rosario

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Victoria Intl. YYJ. Flights from $565
YYJ
Victoria Intl.
Flights from $565
Select flight to Bellingham Intl. BLI. Cheapest option available. Flights from $402
BLI
Bellingham Intl.
Cheapest
Flights from $402

Frequently asked questions

How much does a flight from San Diego Intl. Airport (SAN) to Rosario, WA (RSJ-Rosario Seaplane Base) cost?
Secure a cheap one-way flight or cheap return flight from San Diego Intl. Airport (SAN) to Rosario, WA (RSJ-Rosario Seaplane Base) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from San Diego Intl. Airport (SAN) to Rosario, WA (RSJ-Rosario Seaplane Base)?
is the cheapest month to fly from SAN to RSJ. Traveling outside of peak seasons is often the key to scoring lower fares.
What is the cheapest airline that flies from San Diego Intl. Airport (SAN) to Rosario, WA (RSJ-Rosario Seaplane Base)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Choose your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest SAN to RSJ flight.
How many flights per day from San Diego Intl. Airport (SAN) to Rosario, WA (RSJ-Rosario Seaplane Base)?
Nonstop flights from San Diego Intl. Airport (SAN) to Rosario, WA (RSJ-Rosario Seaplane Base) aren't available daily, so you'll have to take a flight with a layover. Explore your options with our filter tool. Enter your travel details and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from SAN to RSJ?
Usually you'll find the most flight options available on a Friday. Tuesdays tend to be the quietest.* However, this can change based on the airline, season and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from San Diego Intl. Airport (SAN) to Rosario, WA (RSJ-Rosario Seaplane Base)?
To land at Rosario, WA (RSJ-Rosario Seaplane Base) on time, pick a flight that takes off from San Diego Intl. Airport (SAN) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from San Diego Intl. Airport (SAN) to Rosario, WA (RSJ-Rosario Seaplane Base) last-minute?
Booking your flight from SAN to RSJ just before your journey is typically more expensive. But if you're flexible with your schedule, you could land a cheap last-minute fare.
Can I cancel or change the date of my flight from San Diego Intl. Airport (SAN) to Rosario, WA (RSJ-Rosario Seaplane Base)?
You can usually reschedule or cancel your SAN to RSJ flight. However, for bookings made more than 24 hours ago, additional charges may apply. Check your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Travel information

Origin airport
San Diego Intl.
Destination airport
Rosario Seaplane Base
Distance
1138 mi

Book with confidence

Book with confidence

San Diego to Rosario Flights

The cheapest times to fly from San Diego to Rosario

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Diego to Rosario are during the month of . You can find some of the cheapest flights from San Diego to Rosario with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Diego to Rosario

Sunday is one of the best days to book for cheap flights from San Diego to Rosario: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from San Diego to Rosario

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Diego to Rosario in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Diego to Rosario flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Diego to Rosario airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

San Diego to Rosario Flights

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Explore a world of travel with Expedia

*Available to One Key members.