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92 € Cheap Flights from Santa Rosa to San Diego International

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      Travellers and cabin class, 1 Adult, Economy
      Alaska Airlines
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      Compare Santa Rosa to San Diego International flight deals

      Find the cheapest month or even day of the year to fly to San Diego International

      Book the best San Diego International fare with no extra fees

      Flight deals from Santa Rosa to San Diego International

      Looking for a cheap last-minute deal or the best return flight from Santa Rosa Airport to San Diego International Airport? If you want to travel next month, return fares start from 92 €. Find the lowest prices on one-way and return tickets right here.
      San Diego.92 € per passenger.Departing Fri, 2 Oct, returning Tue, 6 Oct.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Santa Rosa on Fri, 2 Oct, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Tue, 6 Oct, arriving in Santa Rosa.Price includes taxes and charges.From 92 €, select.
      San Diego.95 € per passenger.Departing Thu, 24 Sep, returning Mon, 28 Sep.Return flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Santa Rosa on Thu, 24 Sep, arriving in San Diego International.Inbound direct flight with Alaska Airlines departs from San Diego International on Mon, 28 Sep, arriving in Santa Rosa.Price includes taxes and charges.From 95 €, select.
      San Diego.100 € per passenger.Departing Fri, 13 Nov, returning Sun, 15 Nov.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Santa Rosa on Fri, 13 Nov, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Sun, 15 Nov, arriving in Santa Rosa.Price includes taxes and charges.From 100 €, select.
      San Diego.101 € per passenger.Departing Thu, 24 Sep, returning Thu, 1 Oct.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Santa Rosa on Thu, 24 Sep, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Thu, 1 Oct, arriving in Santa Rosa.Price includes taxes and charges.From 101 €, select.
      San Diego.112 € per passenger.Departing Thu, 10 Dec, returning Thu, 17 Dec.Return flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Santa Rosa on Thu, 10 Dec, arriving in San Diego International.Inbound direct flight with Alaska Airlines departs from San Diego International on Thu, 17 Dec, arriving in Santa Rosa.Price includes taxes and charges.From 112 €, select.
      San Diego.119 € per passenger.Departing Fri, 30 Oct, returning Sun, 1 Nov.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Santa Rosa on Fri, 30 Oct, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Sun, 1 Nov, arriving in Santa Rosa.Price includes taxes and charges.From 119 €, select.
      San Diego.187 € per passenger.Departing Thu, 17 Dec, returning Sun, 3 Jan.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Santa Rosa on Thu, 17 Dec, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Sun, 3 Jan, arriving in Santa Rosa.Price includes taxes and charges.From 187 €, select.
      San Diego.206 € per passenger.Departing Sat, 28 Nov, returning Fri, 4 Dec.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Santa Rosa on Sat, 28 Nov, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Fri, 4 Dec, arriving in Santa Rosa.Price includes taxes and charges.From 206 €, select.
      San Diego.210 € per passenger.Departing Sun, 3 Jan, returning Tue, 12 Jan.Return flight with Southwest Airlines.Outbound direct flight with Southwest Airlines departs from Santa Rosa on Sun, 3 Jan, arriving in San Diego International.Inbound direct flight with Southwest Airlines departs from San Diego International on Tue, 12 Jan, arriving in Santa Rosa.Price includes taxes and charges.From 210 €, select.

      Find the cheapest month to fly from Santa Rosa to San Diego International

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Santa Rosa to San Diego International flights are currently cheapest in October.
      Sep
      from 95 €
      Oct
      from 92 €
      Nov
      from 100 €
      Dec
      from 112 €
      Jan
      from 210 €
      Feb
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      Mar
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      Apr
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      May
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      Jun
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      Jul
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      Aug
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      Direct flights from Santa Rosa to San Diego International

      Alaska Airlines
      American Airlines
      Horizon Air
      SkyWest Airlines
      Southwest Airlines

      Santa Rosa to San Diego International: Alternative routes

      Compare routes from Santa Rosa to San Diego below. You may find an airport to fly into that's cheaper, faster, or easier than San Diego International.

      San Diego International

      4km from central San Diego
      ClosestCheapest
      from 92 €
      Search flights

      McClellan-Palomar

      48km from central San Diego
      Search flights

      Santa Rosa to San Diego: Flight information

      The things to know before you go.
      Cheapest flight found92 €
      Cheapest month to flyOctober
      Average flight time1 hr, 46 mins
      Most popular airlineAlaska Airlines
      Average flights per week78

      Finding cheap flights from Santa Rosa to San Diego International: Frequently asked questions

      The best price we found for a return flight from Santa Rosa to San Diego International is 92 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
      1 hour and 46 minutes is the average flight time from Santa Rosa to San Diego International.
      Alaska Airlines, SkyWest Airlines and Southwest Airlines fly direct from Santa Rosa to San Diego International.
      As of September 2026, there are 78 flights per week flying from Santa Rosa to San Diego International.
      The cheapest month to fly from Santa Rosa to San Diego International is usually October.
      After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Santa Rosa Airport to San Diego International Airport on Friday, 2 October 2026.
      Yes – the average flight time is 1 hour and 46 minutes.
      We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Diego International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

      We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Diego is around 40 days in advance, so don’t leave your flight to the last minute.

      Currently, Southwest Airlines offers the cheapest flight tickets to San Diego International.

      Travelling from Santa Rosa Airport (STS) to San Diego International Airport (SAN): what you need to know

      • Around 1 hour 45 minutes is how long you'll be travelling on a direct flight from Santa Rosa Airport to San Diego International Airport.

      • Santa Rosa and San Diego follow the same timezone, UTC-8.

      • There are 24 Santa Rosa Airport to San Diego International Airport flights every week.

      • For a smooth journey, turn up at the airport two hours ahead of international flights and one hour before domestic departures. This ensures you have enough time to catch your STS to SAN flight.

      • During popular months like August, it's a good idea to get to the airport even earlier. Plan to arrive two hours before a domestic departure and four hours ahead for international flights whenever you're travelling during a high season in general.

      • Alaska Airlines is your gateway to exploring San Diego (and perhaps some other exciting parts of the United States!). Check out the direct flights from Santa Rosa Airport to San Diego International Airport offered by this popular airline.

      • Alaska Airlines is the most frequently booked airline on this route.

      • The carrier with the best on-time arrival rate for STS to SAN flights is Alaska Airlines.

      • Take a detour to a new city or break up your flight with a stopover. Just deselect 'Direct flights only' to see your options when searching for tickets from Santa Rosa Airport to San Diego International Airport. Many passengers pass through Dallas Fort Worth International Airport when flying between STS and SAN.

      How to find the cheapest flights from Santa Rosa Airport (STS) to San Diego International Airport (SAN)

      • The cheapest price we've found for a one-way Santa Rosa Airport to San Diego International Airport flight is 42 €. A round-trip plane ticket is currently 92 €. Depending on the availability when you book, these fares can change.

      • To score cheap tickets from STS to SAN, book in advance. Airlines generally offer the most competitive fares when flights are first made available.

      • Schedule your trip for May. That's the cheapest month for flights from Santa Rosa Airport to San Diego International Airport. If you're flexible on when you fly, use the 'Whole month' tool to find the cheapest airfare across every month.

      • Landing cheap flights from STS to SAN couldn't be easier with Price Alerts. All you need to do is set up one of these automatic alerts and we'll notify you when a lower fare pops up.

      • Choose your preferred arrival and departure times, airlines and number of stops with the filters. Alternatively, sort your results by 'Cheapest' to see the best deals on flights from Santa Rosa Airport to San Diego International Airport.

      Handy information about Santa Rosa Airport (STS)

      • STS's address is 2200 Airport Boulevard.

      • Of all flights leaving Santa Rosa Airport, 71% land on schedule at their destination.

      • Santa Rosa Airport is about 10 kilometres from central Santa Rosa. If you're ride-sharing, catching a taxi or driving from the centre, it'll take 10 minutes or so to arrive, depending on the traffic.

      • Taking public transport? Expect a journey time of around 35 minutes.

      • Need a convenient hotel near STS? If you're catching an early flight from Santa Rosa Airport to San Diego International Airport, these accommodation options will have you sleeping moments from your departure gate:

      Arriving at San Diego International Airport (SAN)

      When to fly to San Diego International Airport (SAN)

      • The quietest month for a flight from Santa Rosa Airport to San Diego International Airport is March, while August is the most popular. Choose the ideal time to go to San Diego based on whether you prefer a bustling atmosphere or a more laid-back vibe.

      • Before locking in your flight from Santa Rosa Airport to San Diego International Airport, consider the kind of weather you enjoy. August is the warmest month in San Diego, with the temperature ranging from 16ºC (61ºF) to 27ºC (81ºF).

      • Look for cheap tickets from STS to SAN in February if you want to travel in cooler conditions. Temperatures are at their lowest then, ranging between 8ºC (46ºF) and 22ºC (72ºF) on average.

      Explore more of the United States

      • You've visited San Diego, now it's time to discover other parts of the United States. Travel around 177 kilometres north-west to Los Angeles to check off its must-visit sights. From Hollywood Sign to Universal Studios Hollywood and Hollywood Bowl, your itinerary will be busy.

      • If you're eager to discover another side of the United States, head for Phoenix, about 483 kilometres east of San Diego. Camelback Mountain, Yayoi Kusama Fireflies Infinity Mirror Room and Heard Museum are the start of reasons to visit.

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.