$97 Cheap Flights from Redmond (RDM) to San Diego (SAN)

View $97 flight on Wed, Dec 17, 2025Opens in a new window

Popular airlines from Redmond Municipal Airport (RDM) to San Diego Intl. Airport (SAN)

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Cheap Flights from Redmond to San Diego (RDM-SAN)

Prices were available within the past 7 days and start at $97 for one-way flights and $177 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Fri, Oct 17 - Sun, Oct 19
RDM
Redmond
SAN
San Diego
$177 Roundtrip, found 8 hours ago
$177
Roundtrip
found 8 hours ago
Select Hawaiian Airlines flight, departing Fri, Oct 17 from Redmond to San Diego, returning Sun, Oct 19, priced at $177 found 8 hours ago
Hawaiian Airlines
Sat, Oct 25 - Mon, Oct 27
RDM
Redmond
SAN
San Diego
$187 Roundtrip, found 2 days ago
$187
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Sat, Oct 25 from Redmond to San Diego, returning Mon, Oct 27, priced at $187 found 2 days ago
Delta
Thu, Sep 25 - Mon, Sep 29
RDM
Redmond
SAN
San Diego
$197 Roundtrip, found 5 hours ago
$197
Roundtrip
found 5 hours ago
Select Delta flight, departing Thu, Sep 25 from Redmond to San Diego, returning Mon, Sep 29, priced at $197 found 5 hours ago
United
Wed, Sep 10 - Tue, Sep 16
RDM
Redmond
SAN
San Diego
$197 Roundtrip, found 6 hours ago
$197
Roundtrip
found 6 hours ago
Select United flight, departing Wed, Sep 10 from Redmond to San Diego, returning Tue, Sep 16, priced at $197 found 6 hours ago
Hawaiian Airlines
Thu, Oct 16 - Sun, Oct 19
RDM
Redmond
SAN
San Diego
$197 Roundtrip, found 8 hours ago
$197
Roundtrip
found 8 hours ago
Select Hawaiian Airlines flight, departing Thu, Oct 16 from Redmond to San Diego, returning Sun, Oct 19, priced at $197 found 8 hours ago
United
Thu, Oct 16 - Tue, Oct 21
RDM
Redmond
SAN
San Diego
$198 Roundtrip, found 8 hours ago
$198
Roundtrip
found 8 hours ago
Select United flight, departing Thu, Oct 16 from Redmond to San Diego, returning Tue, Oct 21, priced at $198 found 8 hours ago
Delta
Thu, Sep 25 - Mon, Sep 29
RDM
Redmond
SAN
San Diego
$199 Roundtrip, found 5 hours ago
$199
Roundtrip
found 5 hours ago
Select Delta flight, departing Thu, Sep 25 from Redmond to San Diego, returning Mon, Sep 29, priced at $199 found 5 hours ago
Delta
Fri, Apr 17 - Tue, Apr 28
RDM
Redmond
SAN
San Diego
$200 Roundtrip, found 9 hours ago
$200
Roundtrip
found 9 hours ago
Select Delta flight, departing Fri, Apr 17 from Redmond to San Diego, returning Tue, Apr 28, priced at $200 found 9 hours ago
United
Sat, Sep 13 - Mon, Sep 22
RDM
Redmond
SAN
San Diego
$202 Roundtrip, found 5 days ago
$202
Roundtrip
found 5 days ago
Select United flight, departing Sat, Sep 13 from Redmond to San Diego, returning Mon, Sep 22, priced at $202 found 5 days ago
Alaska Airlines
Sun, Sep 14 - Sun, Sep 21
RDM
Redmond
SAN
San Diego
$207 Roundtrip, found 4 days ago
$207
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sun, Sep 14 from Redmond to San Diego, returning Sun, Sep 21, priced at $207 found 4 days ago

Find the cheapest month to fly from Redmond (RDM) to San Diego (SAN)

January is typically the cheapest month to fly

From $156 - $327 per traveler.

Graph displaying average flight prices per month

Alternative airports near San Diego

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

Select flight to McClellan-Palomar CLD. Cheapest option available. Average driving time to city center is 38 minutes. Flights from $258
CLD
McClellan-Palomar
Cheapest
Average driving time to city center38 min
Flights from $258
Flights from Redmond (RDM) to San Diego (SAN)
Origin airport
Robert's Field
Destination airport
San Diego Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, United
Roundtrip price
$175
Distance
824 mi
Average flight time
2 hours 25 mins

Redmond to San Diego Flights

The cheapest times to fly from Redmond to San Diego

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 Redmond to San Diego are during the month of October. You can find some of the cheapest flights from Redmond to San Diego with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Redmond to San Diego: 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 Redmond to San Diego

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 Redmond to San Diego in 2025. You can also book with separate airlines for your outbound and return journeys, from $97 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 Redmond to San Diego 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 Redmond to San Diego 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.

 

Frequently asked questions

How much does a flight from Robert's Field Airport (RDM) to San Diego Intl. Airport (SAN) cost?
Get a cheap one-way flight from $97 or cheap return flight from $177 from Robert's Field Airport (RDM) to San Diego Intl. Airport (SAN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Robert's Field Airport (RDM) to San Diego Intl. Airport (SAN)?
The cheapest month to fly from RDM to SAN is October, when demand is low. Off-peak months are generally when better flight deals are available between these airports.
Which airlines fly direct from Robert's Field Airport (RDM) to San Diego Intl. Airport (SAN)?
When jetting out of Robert's Field Airport (RDM), you can take a direct flight to San Diego Intl. Airport (SAN) with Alaska Airlines.
What is the cheapest airline that flies from Robert's Field Airport (RDM) to San Diego Intl. Airport (SAN)?
Expedia's filter tool lets you easily compare different airlines, departure times and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find out which carrier offers the cheapest RDM to SAN flight.
How many flights per day from Robert's Field Airport (RDM) to San Diego Intl. Airport (SAN)?
On average, Robert's Field Airport (RDM) only offers 1 nonstop flight to San Diego Intl. Airport (SAN) per day. For more options, try our easy-to-use filter tool. Just enter your preferred travel dates, then choose "1 Stop" or "2+ Stops" to discover flights offering layovers.
What are the most popular departure times for flights from Robert's Field Airport (RDM) to San Diego Intl. Airport (SAN)?
The 5 PM departures from RDM to SAN are the top choice for many travelers. These flights can come with a higher price due to their popularity. If you want to save on your trip, choose a less crowded time to fly.
What day of the week has the most flights from RDM to SAN?
Friday offers the most flights from Robert's Field Airport (RDM) to San Diego Intl. Airport (SAN). Consider leaving on this day and you'll have the best chance of finding a departure that fits your schedule.
What is the earliest flight from Robert's Field Airport (RDM) to San Diego Intl. Airport (SAN)?
Catch the earliest flight at around 5:59PM UTC-8, heading out of Robert's Field Airport (RDM). You'll be flying for roughly 2h 20m, coming in to land at San Diego Intl. Airport (SAN) at approximately 8:19PM UTC-8.
How long does it take to fly from Robert's Field Airport (RDM) to San Diego Intl. Airport (SAN)?
Flights from RDM to SAN have an average travel time of 2 hours and 20 minutes. The distance between the two airports is 830 mi.
What is the best time to fly from Robert's Field Airport (RDM) to San Diego Intl. Airport (SAN)?
To avoid possible delays on the Robert's Field Airport (RDM) to San Diego Intl. Airport (SAN) route, travel before 3 PM. Later flights are 22% more likely to be canceled.**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.
What airports do you fly into for San Diego from Robert's Field Airport (RDM)?
If you're on a direct flight from Robert's Field Airport (RDM) to San Diego, San Diego Intl. Airport (SAN) is the only airport you can touch down at.
Is it cheaper to buy a plane ticket from Robert's Field Airport (RDM) to San Diego Intl. Airport (SAN) last-minute?
Holding off until just before your trip to book a ticket from RDM to SAN often results in higher prices. While you might find some last-minute deals, they aren't always guaranteed. Be flexible with your itinerary for a better chance of snagging a bargain.
Is it cheaper to book a RDM to SAN flight and hotel package?
You'll generally save money by booking a RDM to SAN flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one place. Once you've selected your ideal accommodations and flights, consider other add-ons like car rentals, activities and tours.
Can I cancel or change the date of my flight from Robert's Field Airport (RDM) to San Diego Intl. Airport (SAN)?
Typically, you can modify or cancel your RDM to SAN flight. However, additional charges may apply, especially if you made your booking more than 24 hours ago. Double-check your itinerary for the airline's policies and fees on flight changes, or if you'd like more details, head to our Customer Service portal.

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*Available to One Key members.