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Cheap Flights from San Diego to Washington Dulles

Compare San Diego to Washington Dulles flight deals

Find the cheapest month or even day of the year to fly to Washington Dulles

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Flight deals from San Diego to Washington Dulles

Looking for a cheap last-minute deal or the best return flight from San Diego to Washington Dulles? Find the lowest prices on one-way and return tickets right here.
Washington D.C..R 1,920 per passenger.Departing Wed, 19 Nov.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from San Diego International on Wed, 19 Nov, arriving in Washington Dulles.Price includes taxes and charges.From R 1,920, select.
Washington D.C..R 1,920 per passenger.Departing Tue, 9 Sep.One-way flight with Southwest Airlines.Outbound indirect flight with Southwest Airlines, departs from San Diego International on Tue, 9 Sep, arriving in Washington Dulles.Price includes taxes and charges.From R 1,920, select.
Washington D.C..R 1,940 per passenger.Departing Wed, 27 Aug.One-way flight with American Airlines.Outbound indirect flight with American Airlines, departs from San Diego International on Wed, 27 Aug, arriving in Washington Dulles.Price includes taxes and charges.From R 1,940, select.
Washington D.C..R 2,025 per passenger.Departing Tue, 26 Aug.One-way flight with Hawaiian Airlines.Outbound direct flight with Hawaiian Airlines departs from San Diego International on Tue, 26 Aug, arriving in Washington Dulles.Price includes taxes and charges.From R 2,025, select.
Washington D.C..R 2,031 per passenger.Departing Sat, 17 Jan.One-way flight with Hawaiian Airlines.Outbound direct flight with Hawaiian Airlines departs from San Diego International on Sat, 17 Jan, arriving in Washington Dulles.Price includes taxes and charges.From R 2,031, select.
Washington D.C..R 2,103 per passenger.Departing Wed, 19 Nov.One-way flight with United.Outbound direct flight with United departs from San Diego International on Wed, 19 Nov, arriving in Washington Dulles.Price includes taxes and charges.From R 2,103, select.
Washington D.C..R 2,103 per passenger.Departing Tue, 9 Sep.One-way flight with United.Outbound direct flight with United departs from San Diego International on Tue, 9 Sep, arriving in Washington Dulles.Price includes taxes and charges.From R 2,103, select.
Washington D.C..R 2,124 per passenger.Departing Wed, 1 Oct.One-way flight with United.Outbound direct flight with United departs from San Diego International on Wed, 1 Oct, arriving in Washington Dulles.Price includes taxes and charges.From R 2,124, select.

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

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like San Diego to Washington Dulles flights are currently cheapest in September.
Jul
from R 3,209
Aug
from R 1,940
Sep
from R 1,920
Oct
from R 2,124
Nov
from R 1,920
Dec
from R 2,417
Jan
from R 2,031
Feb
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Mar
from R 3,231
Apr
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May
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Jun
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Direct flights from San Diego to Washington Dulles

San Diego to Washington Dulles: Alternative routes

Compare routes from San Diego to Washington D.C. below. You may find an airport to fly into that's cheaper, faster, or easier than Washington Dulles.

San Diego to Washington D.C.: Flight information

The things to know before you go.
Cheapest flight foundR 1,920
Cheapest month to flySeptember
Average flight time5 hrs, 3 mins
Most popular airlineUnited
Average flights per week83

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

The best price we found for a return flight from San Diego to Washington Dulles is R 3,350. 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 3 minutes is the average flight time from San Diego to Washington Dulles.
United, Hawaiian Airlines and Alaska Airlines fly direct from San Diego to Washington Dulles.
As of July 2025, there are 83 flights per week flying from San Diego to Washington Dulles.
The cheapest month to fly from San Diego to Washington Dulles is usually August.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from San Diego to Washington Dulles Airport on Saturday, 30 August 2025.
Yes – the average flight time is 5 hours and 3 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 Washington Dulles 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 Washington D.C. is around 40 days in advance, so don’t leave your flight to the last minute.
The cheapest airline that flies to Washington Dulles is Hawaiian Airlines .

Travelling from San Diego to Washington Dulles International Airport (IAD): What you need to know

  • Kick off your travels at one of San Diego's main airports, San Diego International Airport (SAN) or McClellan-Palomar Airport (CLD). Check out your options for booking a flight from San Diego to Washington Dulles International Airport (IAD) leaving from either of these.

  • The average time for a direct San Diego to Washington Dulles International Airport flight is 4 hours 55 minutes.

  • The timezone in Washington DC is UTC-4, which is three hours ahead of San Diego. Washington Dulles International Airport is located in Washington DC.

  • The most popular route is from San Diego International Airport (SAN) to Washington Dulles International Airport (IAD), with 28 direct weekly services. If you'd rather get moving right away, the earliest flight from SAN to IAD is the 7:55am United Airlines option. If you prefer travelling later, the last departure is at 10pm with United Airlines.

  • Get to the airport on time so you don't miss your flight from San Diego to IAD. Be there at least two hours ahead for international flights and an hour early for domestic departures to prevent a last-minute sprint to your gate.

  • In peak travel periods, allow for longer wait times and be there earlier. Aim for at least two hours ahead for domestic flights and as much as four hours for international journeys.

Airports in San Diego

San Diego International Airport (SAN)

  • You can take a direct flight from San Diego to Washington Dulles International Airport (IAD) departing from San Diego International Airport (SAN).

  • You'll find a direct flight from San Diego to Washington Dulles International Airport with United Airlines. This popular airline operates services from SAN.

  • The most frequently booked airline between SAN and IAD is United Airlines.

  • With an impressive 82.78% of services arriving as planned, United Airlines leads the way in punctuality on this route.

  • SAN is about 5 kilometres from central San Diego. If you're catching a cab, driving or ride-sharing from the centre, it'll take 10 minutes or so to get there, depending on traffic conditions. If you're using public transport, expect the trip time to be around 20 minutes.

  • Want a stress-free start to your break? Stay near San Diego International Airport. Whether you're boarding an early flight from San Diego to Washington Dulles International Airport or want to avoid feeling rushed, these hotels have you covered:

  • When it comes to San Diego International Airport's on-time performance, data shows 71.38% of flights arrive within the expected time frame.

  • SAN is located at N Harbour Dr.

McClellan-Palomar Airport (CLD)

  • Using public transport, you can travel from central San Diego to CLD in about 2 hours 15 minutes. The terminal is roughly 56 kilometres away, and getting there by car will take approximately 40 minutes.

  • Got a crack-of-dawn departure? You might like to check in to one of these accommodation options near McClellan-Palomar Airport the day before your San Diego to IAD flight:

About Washington Dulles International Airport (IAD)

Getting from Washington Dulles International Airport (IAD) to central Washington DC

  • The centre of Washington DC is around 40 kilometres from Washington Dulles International Airport. Travel times by cab or car hire will vary based on traffic conditions, so do a little research ahead of your trip.

  • If you're using public transport, expect a journey of roughly 1 hour 10 minutes.

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

  • R 1,920 is the lowest price for a one-way ticket from San Diego to Washington Dulles International Airport. A return flight starts from R 3,350. These prices can change depending on availability.

  • To pick up cheap flights from San Diego to IAD, book ahead. Airlines typically offer the most competitive fares when tickets are first released.

  • If you're flexible with your travel dates, use the 'Whole month' search tool. It'll give you the lowest price in each month when searching for your San Diego to Washington Dulles International Airport ticket.

  • Save time looking for cheap plane tickets from San Diego to IAD by creating a Price Alert. We'll send you an email or notification on the app when a lower fare pops up.

  • Discover the best deal on a flight from San Diego to Washington Dulles International Airport with the help of the filters. Pick your preferred arrival and departure times, airlines and number of stops. You can also sort your results by 'Fastest,' 'Cheapest' or 'Best.'

The best time to fly from San Diego to Washington Dulles International Airport (IAD)

  • February is the quietest month for flights from San Diego to Washington Dulles International Airport (IAD), while July is the busiest. Choose the best time to visit Washington DC based on whether you want a bustling atmosphere or a more laid-back vibe.

  • When booking your San Diego to IAD plane ticket, consider the kind of weather you prefer. July is the warmest month in Washington DC, with temperatures ranging from 19ºC (66ºF) to 33ºC (91ºF).

  • If you like travelling in cooler conditions, search for a cheap ticket from San Diego to Washington Dulles International Airport in January when temperatures are between -6ºC (21ºF) and 10ºC (50ºF).

More about Washington DC

Explore more of the United States

  • Philadelphia is just one of the many places in the United States waiting to be discovered after you've seen Washington DC. Around 225 kilometres away to the north-east, well-known attractions include Independence Hall, Liberty Bell and Philadelphia Museum of Art.

  • If there's time to check out another corner of the United States, head for Virginia Beach, roughly 274 kilometres south-east of Washington DC. Virginia Beach Oceanfront, Virginia Beach Boardwalk and Resort Beach are key highlights.

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

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