Cheap Flights from Washington Dulles to San Diego

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Flight deals from Washington Dulles to San Diego

Looking for a cheap last-minute deal or the best return flight from Washington Dulles Airport to San Diego? If you want to travel next month, return fares start from Rs80,425. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Washington Dulles to San Diego

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Washington Dulles to San Diego flights are currently cheapest in August.

Direct flights from Washington Dulles to San Diego

Alternative Washington Dulles to San Diego routes

Looking for the cheapest, fastest or easiest route from Washington Dulles to San Diego? You could fly into the following airports instead.

Washington D.C. to San Diego: Flight information

The things to know before you go.
Cheapest flight foundRs29,606
Cheapest month to flyAugust
Average flight time5 hrs, 29 mins
Most popular airlineUnited
Average flights per week77

Finding cheap flights from Washington Dulles to San Diego: Frequently asked questions

There are 2 airports in San Diego: San Diego International and McClellan-Palomar.
The best price we found for a return flight from Washington Dulles to San Diego is Rs52,377. 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 29 minutes is the average flight time from Washington Dulles to San Diego.
United, Qatar Airways and Alaska Airlines fly direct from Washington Dulles to San Diego.
As of June 2026, there are 77 flights per week flying from Washington Dulles to San Diego.
The cheapest month to fly from Washington Dulles to San Diego is usually August.
If you're flying from Washington Dulles Airport, the cheapest airport near San Diego is San Diego International – which is 4.1 km away from the centre of San Diego. We've found flights into this airport from Rs52,377.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Washington Dulles Airport to San Diego on Wednesday, 19 August 2026.
Yes – the average flight time is 5 hours and 29 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 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.
In June, the average temperature is usually around 19°C. August is typically the warmest month in San Diego, when it usually averages around 28°C. You can expect the least rain in June. The coldest month is December, with temperatures averaging 10°C. The rainiest month is February.
Currently, Frontier Airlines and United offer the cheapest flight tickets to San Diego.

Flying from Washington Dulles International Airport (IAD) to San Diego: what you need to know

  • Expect to be in the air for 4 hours 55 minutes. That's the average time for a direct flight from Washington Dulles International Airport to San Diego.

  • The timezone in San Diego is UTC-8. The city is three hours behind Washington DC, where Washington Dulles International Airport is located.

  • The busiest route is from Washington Dulles International Airport (IAD) to San Diego International Airport (SAN). You can choose from 27 services every week between these two airports. If you want to get on your way as soon as possible, the earliest flight from IAD to SAN is the 08:30 United Airlines service. If you prefer travelling later, the last departure is at 18:20 with United Airlines.

  • Allow plenty of time to catch your IAD to San Diego flight. As a rule of thumb, arrive two hours before international departures and an hour ahead for domestic flights.

  • You'll likely experience bigger queues in popular months like June. Arriving up to four hours ahead of an international flight and two hours for domestic departures will help ensure a smooth travel experience.

  • Direct Washington Dulles International Airport to San Diego tickets are available for booking. San Diego International Airport (SAN) is where you'll disembark.

  • Take to the skies with United Airlines. This leading carrier operates direct flights from Washington Dulles International Airport to San Diego.

  • Travelling from central Washington DC to IAD takes about 1 hour 10 minutes by public transport. If you ride-share, drive or take a taxi, you'll cover the 40 kilometres in 45 minutes or so, depending on traffic conditions.

  • Catching an early flight from Washington Dulles International Airport to San Diego? Avoid rushing to the terminal (and catch some extra z's) by choosing one of these hotels close to IAD:

  • Of the flights that depart from Washington Dulles International Airport, 77% touch down on time at their destination.

  • IAD is located at 1 Saarinen Circle.

How to find the cheapest flights from Washington Dulles International Airport (IAD) to San Diego

  • Rs29,606 is currently the lowest price for a one-way Washington Dulles International Airport to San Diego flight. Return plane tickets start at Rs52,377. These fares can change based on availability and demand.

  • Get cheap flights from IAD to San Diego by booking one month ahead. Based on our research, that's the best time for picking up a bargain.

  • Schedule your trip for June. That's the best month for scoring an awesome deal on Washington Dulles International Airport to San Diego tickets. If you're flexible with your travel dates, use the 'Whole month' tool to find the lowest price across every month.

  • Save time searching for cheap flights from IAD to San Diego by creating a Price Alert. You'll get an email or notification on the app when a special offer becomes available.

  • Select your ideal arrival and departure times, airlines and number of stops with our filters. Then, sort the results for your flight from Washington Dulles International Airport to San Diego by 'Best,' 'Cheapest' or 'Fastest.'

Airports in San Diego

San Diego International Airport (SAN)

  • San Diego International Airport (SAN) to the centre of San Diego takes about 15 minutes by car. The centre is roughly 5 kilometres away.

  • When travelling on public transport, expect a journey time of around 25 minutes.

  • If you're coming in on a late flight from Washington Dulles International Airport to San Diego, nothing beats the convenience of staying near the terminal. Pick up your bags from the carousel and then be showered and resting not long after at one of these hotels near SAN:

  • Reserving your ride from San Diego International Airport around two weeks before your flight from IAD to San Diego can help you get the lowest rate.

  • The street address for SAN is N Harbour Dr.

McClellan-Palomar Airport (CLD)

  • McClellan-Palomar Airport (CLD) is about 48 kilometres from central San Diego. Explore your options for travelling into town after your flight from Washington Dulles International Airport to San Diego has touched down.

  • Following your IAD to San Diego flight, unwind at a hotel close to CLD. These are some comfortable options that'll help you get into relaxation mode:

  • Get your preferred vehicle, not just whatever's left, by reserving your ride from CLD ahead of your arrival. You'll also avoid paying extra, especially during peak travel times.

Best time to go to San Diego

  • July is the most popular month for flights from Washington Dulles International Airport to San Diego. To steer clear of the crowds, plan your trip to San Diego in December.

  • Book a Washington Dulles International Airport to San Diego plane ticket with a departure in August to explore the city during its warmest month. Expect temperatures to range from 16ºC to 27ºC.

  • Look for cheap tickets from IAD to San Diego in February if you'd rather travel when it's cooler. Temperatures are at their lowest then, ranging between 8ºC and 22ºC on average.

More about San Diego

  • After booking your flight from Washington Dulles International Airport to San Diego, find a hotel that offers the right mix of comfort and location. Make one of these accommodation options your base for exploring San Diego:

  • Every great journey has to include some sightseeing. San Diego Balboa Park, San Diego Zoo and USS Midway Museum are must-visits when exploring San Diego.

Explore more of the United States

  • San Diego has plenty going for it, but there are so many other parts of the United States just waiting to be discovered. Around 177 kilometres northwest of San Diego, a trip to Los Angeles will keep your itinerary busy. Start with leading sights like Hollywood Sign, Universal Studios Hollywood and Hollywood Bowl.

  • If there's time to check out another side of the United States, consider Phoenix, about 483 kilometres east of San Diego. Camelback Mountain, Yayoi Kusama Fireflies Infinity Mirror Room and Heard Museum are key highlights.

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