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

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      Travellers and cabin class, 1 Adult, Economy
      Alaska Airlines
      American Airlines

      Compare Redmond 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 Redmond to San Diego International

      Looking for a cheap last-minute deal or the best return flight from Redmond Airport to San Diego International Airport? If you want to travel next month, return fares start from $302. Find the lowest prices on one-way and return tickets right here.
      San Diego.$287 per passenger.Departing Fri, 2 Oct, returning Sat, 3 Oct.Return flight with United.Outbound indirect flight with United, departs from Redmond on Fri, 2 Oct, arriving in San Diego International.Inbound indirect flight with United, departs from San Diego International on Sat, 3 Oct, arriving in Redmond.Price includes taxes and charges.From $287, select.
      San Diego.$302 per passenger.Departing Fri, 25 Sep, returning Sun, 27 Sep.Return flight with United.Outbound indirect flight with United, departs from Redmond on Fri, 25 Sep, arriving in San Diego International.Inbound indirect flight with United, departs from San Diego International on Sun, 27 Sep, arriving in Redmond.Price includes taxes and charges.From $302, select.
      San Diego.$371 per passenger.Departing Mon, 21 Dec, returning Wed, 30 Dec.Return flight with United.Outbound indirect flight with United, departs from Redmond on Mon, 21 Dec, arriving in San Diego International.Inbound indirect flight with United, departs from San Diego International on Wed, 30 Dec, arriving in Redmond.Price includes taxes and charges.From $371, select.
      San Diego.$398 per passenger.Departing Wed, 20 Jan, returning Sun, 24 Jan.Return flight with United.Outbound indirect flight with United, departs from Redmond on Wed, 20 Jan, arriving in San Diego International.Inbound indirect flight with United, departs from San Diego International on Sun, 24 Jan, arriving in Redmond.Price includes taxes and charges.From $398, select.
      San Diego.$399 per passenger.Departing Fri, 25 Sep, returning Sat, 3 Oct.Return flight with United.Outbound indirect flight with United, departs from Redmond on Fri, 25 Sep, arriving in San Diego International.Inbound indirect flight with United, departs from San Diego International on Sat, 3 Oct, arriving in Redmond.Price includes taxes and charges.From $399, select.
      San Diego.$399 per passenger.Departing Sun, 15 Nov, returning Sat, 21 Nov.Return flight with Delta.Outbound indirect flight with Delta, departs from Redmond on Sun, 15 Nov, arriving in San Diego International.Inbound indirect flight with Delta, departs from San Diego International on Sat, 21 Nov, arriving in Redmond.Price includes taxes and charges.From $399, select.
      San Diego.$399 per passenger.Departing Wed, 21 Apr, returning Tue, 27 Apr.Return flight with United.Outbound indirect flight with United, departs from Redmond on Wed, 21 Apr, arriving in San Diego International.Inbound indirect flight with United, departs from San Diego International on Tue, 27 Apr, arriving in Redmond.Price includes taxes and charges.From $399, select.
      San Diego.$402 per passenger.Departing Thu, 4 Mar, returning Sun, 7 Mar.Return flight with United.Outbound indirect flight with United, departs from Redmond on Thu, 4 Mar, arriving in San Diego International.Inbound indirect flight with United, departs from San Diego International on Sun, 7 Mar, arriving in Redmond.Price includes taxes and charges.From $402, select.
      San Diego.$402 per passenger.Departing Fri, 25 Dec, returning Fri, 8 Jan.Return flight with United.Outbound indirect flight with United, departs from Redmond on Fri, 25 Dec, arriving in San Diego International.Inbound indirect flight with United, departs from San Diego International on Fri, 8 Jan, arriving in Redmond.Price includes taxes and charges.From $402, select.
      San Diego.$402 per passenger.Departing Wed, 17 Feb, returning Mon, 22 Feb.Return flight with United.Outbound indirect flight with United, departs from Redmond on Wed, 17 Feb, arriving in San Diego International.Inbound indirect flight with United, departs from San Diego International on Mon, 22 Feb, arriving in Redmond.Price includes taxes and charges.From $402, select.
      San Diego.$509 per passenger.Departing Thu, 20 May, returning Sun, 23 May.Return flight with United.Outbound indirect flight with United, departs from Redmond on Thu, 20 May, arriving in San Diego International.Inbound indirect flight with United, departs from San Diego International on Sun, 23 May, arriving in Redmond.Price includes taxes and charges.From $509, select.
      San Diego.$679 per passenger.Departing Mon, 31 Aug, returning Mon, 7 Sep.Return flight with United.Outbound indirect flight with United, departs from Redmond on Mon, 31 Aug, arriving in San Diego International.Inbound indirect flight with United, departs from San Diego International on Mon, 7 Sep, arriving in Redmond.Price includes taxes and charges.From $679, select.

      Find the cheapest month to fly from Redmond to San Diego International

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Redmond to San Diego International flights are currently cheapest in October.
      Aug
      Find prices
      Sep
      from $302
      Oct
      from $287
      Nov
      from $399
      Dec
      from $371
      Jan
      from $398
      Feb
      from $402
      Mar
      from $402
      Apr
      from $399
      May
      from $509
      Jun
      Find prices
      Jul
      Find prices

      Direct flights from Redmond to San Diego International

      Alaska Airlines
      American Airlines

      Redmond to San Diego International: Alternative routes

      Compare routes from Redmond 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 $287
      Search flights

      McClellan-Palomar

      48km from central San Diego
      from $443
      Search flights

      Redmond to San Diego: Flight information

      The things to know before you go.
      Cheapest flight found$287
      Cheapest month to flyOctober
      Average flight time2 hrs, 25 mins
      Most popular airlineAlaska Airlines
      Average flights per week24

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

      The best price we found for a return flight from Redmond to San Diego International is $287. 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.
      2 hours and 25 minutes is the average flight time from Redmond to San Diego International.
      Alaska Airlines and American Airlines fly direct from Redmond to San Diego International.
      As of August 2026, there are 24 flights per week flying from Redmond to San Diego International.
      The cheapest month to fly from Redmond 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 Redmond Airport to San Diego International Airport on Friday, 2 October 2026.
      Yes – the average flight time is 2 hours and 25 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, United offers the cheapest flight tickets to San Diego International.

      Flying from Redmond Airport (RDM) to San Diego International Airport (SAN): what you need to know

      • Jump on a direct flight from Redmond Airport to San Diego International Airport and you'll be in the air for an average of 2 hours 25 minutes.

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

      • Flights from RDM to SAN start at 06:35 — the first with Alaska Airlines. The latest departure is at 18:57 with Alaska Airlines. In total, you can choose from 11 weekly Redmond Airport to San Diego International Airport flights.

      • For a stress-free journey, arrive at the airport two hours ahead of international flights and an hour before domestic departures. This will give you plenty of time to board your RDM to SAN flight.

      • Be prepared for bigger queues during popular months such as July. Arriving up to four hours in advance for international flights and two hours for domestic departures will give you ample time for security and boarding.

      • Alaska Airlines offers direct flights from Redmond Airport to San Diego International Airport. Book with this popular airline, then get ready to see the sights in San Diego — and maybe even more of the United States if you have time.

      • Alaska Airlines has the highest passenger demand on this route.

      • With 72.55% of its services arriving as planned, Alaska Airlines is the most punctual carrier offering RDM to SAN flights.

      • We make it a piece of cake to book a flight with a stopover. To see your options for tickets from Redmond Airport to San Diego International Airport, uncheck 'Direct flights only.' Then, choose a flight that has a stop long enough to visit your chosen city. Some great stopovers between RDM and SAN include:

        • Seattle / Tacoma International Airport

        • San Francisco International Airport

        • Phoenix Sky Harbour Airport

      How to find the cheapest flights from Redmond Airport (RDM) to San Diego International Airport (SAN)

      • The cheapest price we've found for a one-way Redmond Airport to San Diego International Airport flight is $192. A round-trip plane ticket right now is $287. Depending on the availability when you book, these fares can change.

      • To get cheap tickets from RDM to SAN, reserve your trip two months ahead of your departure date.

      • Organise your trip for July. That's the cheapest month for flights from Redmond Airport to San Diego International Airport. If you're flexible with your dates, use the 'Whole month' tool to see the cheapest airfare across every month.

      • Cut down on the time spent looking for cheap flights from RDM to SAN by creating a Price Alert. You'll get an email or push notification on the app when a new discounted fare appears.

      • Find the right flight for you by using the filters. To see the 'Cheapest,' 'Best' or 'Fastest' flights from Redmond Airport to San Diego International Airport, use the 'Sort by' function. You can also filter results by airline, arrival and departure times, and journey duration.

      Handy information about Redmond Airport (RDM)

      • Redmond Airport gets top marks for its on-time performance. 82% of flights that depart RDM arrive at their destination without delay.

      • Redmond Airport is around 6 kilometres from central Redmond. If you're ride-sharing, catching a taxi or driving from the centre, it'll take 10 minutes or so to get there, depending on the traffic.

      • Planning to take public transport? Expect a trip time of around 25 minutes.

      • Need a convenient hotel near RDM? If you've booked an early flight from Redmond Airport to San Diego International Airport, these stays will have you sleeping moments from your departure gate:

      Arriving at San Diego International Airport (SAN)

      Getting from San Diego International Airport (SAN) to central San Diego

      • SAN is located at N Harbour Dr.

      • San Diego International Airport is approximately 5 kilometres from central San Diego. The drive time takes around 15 minutes.

      • It'll take around 25 minutes when travelling by public transport.

      When to fly to San Diego International Airport (SAN)

      • It's time to plan your trip dates for your flight from Redmond Airport to San Diego International Airport. August is the busiest month to visit San Diego. If you want a more laid-back vibe, go in March.

      • The warmest month in San Diego is August, with temperatures ranging between 16ºC (61ºF) and 27ºC (81ºF). Lock in your flights from Redmond Airport to San Diego International Airport in this month if this is the type of weather you like.

      • If you want cooler conditions, search for a cheap ticket from RDM to SAN in February. Average temperatures are between 8ºC (46ºF) and 22ºC (72ºF) then.

      Explore more of the United States

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

      • Phoenix is another must-experience destination in the United States and is around 483 kilometres east of San Diego. No trip is complete without visiting Camelback Mountain, Yayoi Kusama Fireflies Infinity Mirror Room and Heard Museum.

      Plan smart, explore more

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