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Cheap Flights from Washington Ronald Reagan to San Diego International

Compare Washington Ronald Reagan to San Diego International flight deals

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

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Flight deals from Washington Ronald Reagan to San Diego International

Looking for a cheap last-minute deal or the best return flight from Washington Ronald Reagan Airport to San Diego International Airport? If you want to travel next month, return fares start from R 5,232. Find the lowest prices on one-way and return tickets right here.
San Diego.R 2,282 per passenger.Departing Tue, 1 Sep.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Washington Ronald Reagan on Tue, 1 Sep, arriving in San Diego International.Price includes taxes and charges.From R 2,282, select.
San Diego.R 2,282 per passenger.Departing Sun, 23 Aug.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Washington Ronald Reagan on Sun, 23 Aug, arriving in San Diego International.Price includes taxes and charges.From R 2,282, select.
San Diego.R 2,449 per passenger.Departing Sun, 28 Jun.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from Washington Ronald Reagan on Sun, 28 Jun, arriving in San Diego International.Price includes taxes and charges.From R 2,449, select.
San Diego.R 2,516 per passenger.Departing Tue, 27 Oct.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Washington Ronald Reagan on Tue, 27 Oct, arriving in San Diego International.Price includes taxes and charges.From R 2,516, select.
San Diego.R 2,590 per passenger.Departing Tue, 14 Jul.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Washington Ronald Reagan on Tue, 14 Jul, arriving in San Diego International.Price includes taxes and charges.From R 2,590, select.
San Diego.R 2,676 per passenger.Departing Wed, 18 Nov.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Washington Ronald Reagan on Wed, 18 Nov, arriving in San Diego International.Price includes taxes and charges.From R 2,676, select.
San Diego.R 3,305 per passenger.Departing Tue, 1 Sep.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Washington Ronald Reagan on Tue, 1 Sep, arriving in San Diego International.Price includes taxes and charges.From R 3,305, select.
San Diego.R 3,322 per passenger.Departing Wed, 31 Mar.One-way flight with Delta.Outbound indirect flight with Delta, departs from Washington Ronald Reagan on Wed, 31 Mar, arriving in San Diego International.Price includes taxes and charges.From R 3,322, select.
San Diego.R 3,403 per passenger.Departing Wed, 26 Aug.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Washington Ronald Reagan on Wed, 26 Aug, arriving in San Diego International.Price includes taxes and charges.From R 3,403, select.
San Diego.R 3,581 per passenger.Departing Mon, 4 Jan.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from Washington Ronald Reagan on Mon, 4 Jan, arriving in San Diego International.Price includes taxes and charges.From R 3,581, select.
San Diego.R 3,649 per passenger.Departing Wed, 23 Dec.One-way flight with Delta.Outbound indirect flight with Delta, departs from Washington Ronald Reagan on Wed, 23 Dec, arriving in San Diego International.Price includes taxes and charges.From R 3,649, select.
San Diego.R 3,665 per passenger.Departing Fri, 16 Apr.One-way flight with Delta.Outbound indirect flight with Delta, departs from Washington Ronald Reagan on Fri, 16 Apr, arriving in San Diego International.Price includes taxes and charges.From R 3,665, select.
San Diego.R 3,759 per passenger.Departing Sat, 10 Oct.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Washington Ronald Reagan on Sat, 10 Oct, arriving in San Diego International.Price includes taxes and charges.From R 3,759, select.
San Diego.R 3,908 per passenger.Departing Mon, 4 Jan.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Washington Ronald Reagan on Mon, 4 Jan, arriving in San Diego International.Price includes taxes and charges.From R 3,908, select.
San Diego.R 3,908 per passenger.Departing Sun, 15 Nov.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Washington Ronald Reagan on Sun, 15 Nov, arriving in San Diego International.Price includes taxes and charges.From R 3,908, select.
San Diego.R 3,908 per passenger.Departing Mon, 13 Jul.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from Washington Ronald Reagan on Mon, 13 Jul, arriving in San Diego International.Price includes taxes and charges.From R 3,908, select.

Find the cheapest month to fly from Washington Ronald Reagan to San Diego International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington Ronald Reagan to San Diego International flights are currently cheapest in August.
May
from R 4,338
Jun
from R 2,449
Jul
from R 2,590
Aug
from R 2,282
Sep
from R 2,282
Oct
from R 2,516
Nov
from R 2,676
Dec
from R 3,649
Jan
from R 3,581
Feb
Find prices
Mar
from R 3,322
Apr
from R 3,665

Direct flights from Washington Ronald Reagan to San Diego International

Washington Ronald Reagan to San Diego International: Alternative routes

Compare routes from Washington Ronald Reagan 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 R 2,282
Search flights

McClellan-Palomar

48km from central San Diego
from R 4,883
Search flights

Washington D.C. to San Diego: Flight information

The things to know before you go.
Cheapest flight foundR 2,282
Cheapest month to flyAugust
Average flight time5 hrs, 39 mins
Most popular airlineAlaska Airlines
Average flights per week8

Finding cheap flights from Washington Ronald Reagan to San Diego International: Frequently asked questions

The best price we found for a return flight from Washington Ronald Reagan to San Diego International is R 4,398. 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.
5 hours and 39 minutes is the average flight time from Washington Ronald Reagan to San Diego International.
Alaska Airlines flies direct from Washington Ronald Reagan to San Diego International.
As of May 2026, there are 8 flights per week flying from Washington Ronald Reagan to San Diego International.
The cheapest month to fly from Washington Ronald Reagan to San Diego International is usually July.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Washington Ronald Reagan Airport to San Diego International Airport on Monday, 27 July 2026.
Yes – the average flight time is 5 hours and 39 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, Frontier Airlines and Alaska Airlines offer the cheapest flight tickets to San Diego International.

Travelling from Ronald Reagan National Airport (DCA) to San Diego International Airport (SAN): what you need to know

  • The timezone in San Diego is UTC-7, which is three hours behind Washington DC.

  • Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for stress-free travel. Get to the airport on time to board your DCA to SAN flight.

  • Flying during a peak time like February? School holidays and other popular periods can mean longer queues at security. Play things extra safe and arrive up to four hours before an international flight and two hours before domestic departures.

  • We make it easy to book a flight with a stopover. To see all your options for tickets from Ronald Reagan National Airport to San Diego International Airport, uncheck 'Direct flights only.' Then, choose a flight offering a stop long enough to tour the city of your choice. Stopovers between DCA and SAN include:

    • Dallas Love Field Airport

    • Chicago Midway International Airport

    • Phoenix Sky Harbour International Airport

How to find the cheapest flights from Ronald Reagan National Airport (DCA) to San Diego International Airport (SAN)

  • R 2,282 is currently the lowest price for a one-way Ronald Reagan National Airport to San Diego International Airport flight. A return flight starts at R 4,398. These prices can change based on availability and demand.

  • It's a good idea to book ahead of time if you want to get cheap tickets from DCA to SAN. That's because flight prices are based on demand, which tends to increase closer to departure.

  • The 'Whole month' tool shows you the cheapest flights from Ronald Reagan National Airport to San Diego International Airport across every month. It's a great way to find a bargain if your trip dates are flexible.

  • You won't have to check back in every day to see if fares have dropped when you set up a Price Alert. We'll let you know as soon as the price changes on cheap flights from DCA to SAN.

  • Tailor your flights using filters. Select your arrival and departure times, total journey duration and airlines. You can also sort the results by 'Best,' 'Cheapest' or 'Fastest' flights from Ronald Reagan National Airport to San Diego International Airport.

Handy information about Ronald Reagan National Airport (DCA)

  • The address for DCA is 1 Aviation Circle.

  • When it comes to Ronald Reagan National Airport's on-time performance, 76.44% of flights stick to their scheduled arrival time.

  • Ronald Reagan National Airport is around 8 kilometres from central Washington DC. If you're driving, catching a cab or ride-sharing from the centre, it'll take 15 minutes or so to arrive, depending on the traffic.

  • The journey on public transport will take about 45 minutes.

  • Looking for a handy hotel close to DCA? If you've booked an early flight from Ronald Reagan National Airport to San Diego International Airport, these accommodation options will put you moments from your check-in counter:

Arriving at San Diego International Airport (SAN)

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

  • You'll find SAN at Airport Drive.

  • From San Diego International Airport, San Diego is approximately 5 kilometres away. It takes around 10 minutes to get to the centre driving.

  • It'll take around 20 minutes if you're travelling on public transport.

When to fly to San Diego International Airport (SAN)

  • It's time to plan your trip dates for your flight from Ronald Reagan National Airport to San Diego International Airport. July is the most popular month to head to San Diego. If you'd like a quieter vibe, go in May.

  • The warmest month in San Diego is August, with the temperature ranging between 17ºC (63ºF) and 28ºC (82ºF). Lock in your flights from Ronald Reagan National Airport to San Diego International Airport in this month if this is the type of weather you enjoy.

  • February has average temperatures of between 7ºC (45ºF) and 23ºC (73ºF). Look for cheap tickets from DCA to SAN around that time if you like cooler conditions.

Explore more of United States

  • Los Angeles is just one of the many cities in United States waiting to be discovered once you've seen the sights of San Diego. Around 177 kilometres away to the north-west, check out popular attractions including Griffith Observatory, The Broad and La Brea Tar Pits & Museum.

  • If there's time to check out another major stop in United States, head for Phoenix, roughly 483 kilometres east of San Diego. Desert Botanical Garden, Heard Museum and Papago Park are the start of reasons to visit.

Plan the rest of your trip from Washington D.C. to San Diego

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.