$99 Cheap Flights from Redmond (RDM) to San Diego (SAN)

View $99 flight on Wed, Feb 4, 2026Opens 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 $99 for one-way flights and $197 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Tue, Aug 19 - Tue, Aug 26
RDM
Redmond
CLD
Carlsbad
$197 Roundtrip, just found
$197
Roundtrip
just found
Select American Airlines flight, departing Tue, Aug 19 from Redmond to Carlsbad, returning Tue, Aug 26, priced at $197 just found
American Airlines
Wed, Aug 20 - Sun, Aug 24
RDM
Redmond
CLD
Carlsbad
$198 Roundtrip, found 17 hours ago
$198
Roundtrip
found 17 hours ago
Select American Airlines flight, departing Wed, Aug 20 from Redmond to Carlsbad, returning Sun, Aug 24, priced at $198 found 17 hours ago
Delta
Wed, Aug 6 - Sat, Aug 9
RDM
Redmond
SAN
San Diego
$199 Roundtrip, just found
$199
Roundtrip
just found
Select Delta flight, departing Wed, Aug 6 from Redmond to San Diego, returning Sat, Aug 9, priced at $199 just found
United
Fri, Jul 11 - Mon, Jul 14
RDM
Redmond
SAN
San Diego
$199 Roundtrip, found 1 hour ago
$199
Roundtrip
found 1 hour ago
Select United flight, departing Fri, Jul 11 from Redmond to San Diego, returning Mon, Jul 14, priced at $199 found 1 hour ago
United
Thu, Sep 4 - Thu, Sep 11
RDM
Redmond
SAN
San Diego
$200 Roundtrip, found 3 hours ago
$200
Roundtrip
found 3 hours ago
Select United flight, departing Thu, Sep 4 from Redmond to San Diego, returning Thu, Sep 11, priced at $200 found 3 hours ago
Alaska Airlines
Tue, Aug 12 - Thu, Aug 14
RDM
Redmond
SAN
San Diego
$203 Roundtrip, found 4 days ago
$203
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Tue, Aug 12 from Redmond to San Diego, returning Thu, Aug 14, priced at $203 found 4 days ago
Alaska Airlines
Wed, Aug 20 - Sun, Aug 24
RDM
Redmond
SAN
San Diego
$210 Roundtrip, found 17 hours ago
$210
Roundtrip
found 17 hours ago
Select Alaska Airlines flight, departing Wed, Aug 20 from Redmond to San Diego, returning Sun, Aug 24, priced at $210 found 17 hours ago
Hawaiian Airlines
Tue, Sep 2 - Wed, Sep 10
RDM
Redmond
SAN
San Diego
$210 Roundtrip, found 2 days ago
$210
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Tue, Sep 2 from Redmond to San Diego, returning Wed, Sep 10, priced at $210 found 2 days ago
United
Wed, Aug 20 - Sun, Aug 24
RDM
Redmond
SAN
San Diego
$211 Roundtrip, found 17 hours ago
$211
Roundtrip
found 17 hours ago
Select United flight, departing Wed, Aug 20 from Redmond to San Diego, returning Sun, Aug 24, priced at $211 found 17 hours ago
Alaska Airlines
Tue, Nov 18 - Thu, Nov 20
RDM
Redmond
SAN
San Diego
$211 Roundtrip, found 4 days ago
$211
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Tue, Nov 18 from Redmond to San Diego, returning Thu, Nov 20, priced at $211 found 4 days ago
Flights from Redmond (RDM) to Carlsbad (CLD)
Origin airport
Robert's Field
Destination airport
McClellan-Palomar
Airlines serving
Alaska Airlines, American Airlines, Delta, Hawaiian Airlines, United
Roundtrip price
$196
Distance
796 mi
Average flight time
2 hours 21 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 August. 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 $99 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?
Cheap return flights from Robert’s Field Airport (RDM) to San Diego Intl. Airport (SAN) start from $237. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Alaska Airlines flight leaving RDM on July 11 2025 and touching down at SAN. The price was last updated on June 14 2025 and has not changed since.
What is the cheapest month to fly from RDM to SAN?
The cheapest flights from RDM to SAN are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
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 RDM to SAN?
Fly from RDM to SAN with Alaska Airlines. This airline currently has the cheapest one-way ticket on this route, starting at $109. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from RDM on September 9 2025. Prices were last updated on June 14 2025 and have not changed since.
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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