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Cheap Flights from San Diego International to Washington Dulles

Compare San Diego International to Washington Dulles flight deals

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

Book the best Washington Dulles fare with no extra fees

Flight deals from San Diego International to Washington Dulles

Looking for a cheap last-minute deal or the best return flight from San Diego International to Washington Dulles? Find the lowest prices on one-way and return tickets right here.
Washington D.C..R 1,762 per passenger.Departing Wed, 9 Jul.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from San Diego International on Wed, 9 Jul, arriving in Washington Dulles.Price includes taxes and charges.From R 1,762, select.
Washington D.C..R 1,762 per passenger.Departing Wed, 13 Aug.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from San Diego International on Wed, 13 Aug, arriving in Washington Dulles.Price includes taxes and charges.From R 1,762, select.
Washington D.C..R 1,762 per passenger.Departing Sat, 28 Jun.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from San Diego International on Sat, 28 Jun, arriving in Washington Dulles.Price includes taxes and charges.From R 1,762, select.
Washington D.C..R 1,941 per passenger.Departing Wed, 21 May.One-way flight with Frontier Airlines.Outbound indirect flight with Frontier Airlines, departs from San Diego International on Wed, 21 May, arriving in Washington Dulles.Price includes taxes and charges.From R 1,941, select.
Washington D.C..R 2,153 per passenger.Departing Tue, 2 Sep.One-way flight with United.Outbound direct flight with United departs from San Diego International on Tue, 2 Sep, arriving in Washington Dulles.Price includes taxes and charges.From R 2,153, select.
Washington D.C..R 2,153 per passenger.Departing Wed, 8 Oct.One-way flight with United.Outbound direct flight with United departs from San Diego International on Wed, 8 Oct, arriving in Washington Dulles.Price includes taxes and charges.From R 2,153, select.
Washington D.C..R 2,158 per passenger.Departing Wed, 11 Jun.One-way flight with United.Outbound direct flight with United departs from San Diego International on Wed, 11 Jun, arriving in Washington Dulles.Price includes taxes and charges.From R 2,158, select.
Washington D.C..R 2,241 per passenger.Departing Wed, 20 Aug.One-way flight with Alaska Airlines.Outbound direct flight with Alaska Airlines departs from San Diego International on Wed, 20 Aug, arriving in Washington Dulles.Price includes taxes and charges.From R 2,241, select.

Find the cheapest month to fly from San Diego International 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 International to Washington Dulles flights are currently cheapest in June.
May
from R 1,941
Jun
from R 1,762
Jul
from R 1,762
Aug
from R 1,762
Sep
from R 2,153
Oct
from R 2,153
Nov
Find prices
Dec
from R 2,902
Jan
from R 3,057
Feb
from R 3,438
Mar
from R 2,889
Apr
Find prices

Direct flights from San Diego International to Washington Dulles

San Diego International to Washington Dulles: Alternative routes

Compare routes from San Diego International 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 1,762
Cheapest month to flyJune
Average flight time5 hrs, 4 mins
Most popular airlineUnited
Average flights per week88

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

The best price we found for a return flight from San Diego International to Washington Dulles is R 3,679. 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 4 minutes is the average flight time from San Diego International to Washington Dulles.
United, Hawaiian Airlines and Alaska Airlines fly direct from San Diego International to Washington Dulles.
As of May 2025, there are 88 flights per week flying from San Diego International to Washington Dulles.
The cheapest month to fly from San Diego International to Washington Dulles is usually May 2025.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from San Diego International Airport to Washington Dulles Airport on Wednesday, 28 May 2025.
Yes – the average flight time is 5 hours and 4 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.
Currently, Frontier Airlines and United offer the cheapest flight tickets to Washington Dulles.

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

  • Around 4 hours 55 minutes is how long you'll be travelling on a direct flight from San Diego International Airport to Washington Dulles International Airport.

  • Washington DC's timezone is UTC-4, making Washington DC three hours ahead of San Diego.

  • Choose from 72 weekly San Diego International Airport to Washington Dulles International Airport flights. The 08:00 departure with United Airlines is the earliest flight available. United Airlines operates the last service of the day at 21:55.

  • Get to the airport on time so you don't miss your SAN to IAD flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid any last-minute rush.

  • You'll likely experience bigger queues in popular months such as July. Arriving up to four hours in advance for an international flight and two hours for domestic departures is a wise move.

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

  • The airline most travellers fly with on this route is Alaska Airlines.

  • With a reliable 82.78% of services landing on schedule, United Airlines has the best on-time performance for SAN to IAD flights.

  • We make it a piece of cake to book a flight with a stopover. To see all your options for tickets from San Diego International Airport to Washington Dulles International Airport, deselect 'Direct flights only.' Then, choose a flight that has a stop long enough to tour the city of your choice. Popular stopovers between SAN and IAD include:

    • John Glenn Columbus International Airport

    • Phoenix Sky Harbour International Airport

    • Indianapolis International Airport

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

  • R 1,762 is the best price for a one-way San Diego International Airport to Washington Dulles International Airport flight. Return flights start from R 3,679. These prices may change depending on availability.

  • To score cheap tickets from SAN to IAD, book your journey six months before your planned departure.

  • The cheapest month for flights from San Diego International Airport to Washington Dulles International Airport is May. Use the 'Whole month' tool to find the lowest airfares if you have flexible dates.

  • Finding cheap flights from SAN to IAD is a cinch with Price Alerts. Simply set up one of these automatic alerts and we'll get in touch as soon as a new discounted fare appears.

  • Find the right flight for you by using the filters. To see the 'Cheapest,' 'Best' or 'Fastest' flights from San Diego International Airport to Washington Dulles International Airport, use the 'Sort by' tool. You can also filter by arrival and departure times, airline, and number of stops.

Handy information about San Diego International Airport (SAN)

  • SAN's address is Airport Drive.

  • Of all flights departing from San Diego International Airport, 71.38% arrive on time at their destination.

  • San Diego International Airport is about 5 kilometres from central San Diego. If you're ride-sharing, catching a cab or driving from the centre, it'll take you 10 minutes or so to get there, depending on the traffic.

  • Expect a journey time of roughly 20 minutes when using public transport.

  • Get your journey off to a stress-free start by staying near SAN. Whether you have an early flight from San Diego International Airport to Washington Dulles International Airport or just don't like being rushed, these stays are perfect:

Arriving at Washington Dulles International Airport (IAD)

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

  • IAD is located at 1 Saarinen Circle.

  • From Washington Dulles International Airport, Washington DC is approximately 56 kilometres away. It takes around 50 minutes to reach the centre driving.

  • It typically takes 3 hours 25 minutes if you're travelling on public transport.

When to fly to Washington Dulles International Airport (IAD)

  • The quietest month for a flight from San Diego International Airport to Washington Dulles International Airport is January, while April is the busiest. Pick the best time to visit Washington DC based on whether you prefer a bustling atmosphere or a more laid-back vibe.

  • The warmest month in Washington DC is July, with the temperature ranging between 19ºC (66ºF) and 33ºC (91ºF). Lock in your flights from San Diego International Airport to Washington Dulles International Airport in this month if this is the type of weather you enjoy.

  • January has average temperatures of between -6ºC (21ºF) and 10ºC (50ºF). Look for cheap tickets from SAN to IAD sometime around then if you'd rather travel in cooler conditions.

Explore more of United States

  • You've visited Washington DC, now it's time to explore other corners of United States. Journey around 322 kilometres north-east to New York to check off its leading attractions. From Statue of Liberty to Central Park and Empire State Building, you'll have a full itinerary ahead.

  • Philadelphia is another standout destination in United States and is around 193 kilometres north-east of Washington DC. No journey is complete without dropping by Liberty Bell, Independence Hall and Philadelphia Museum of Art.

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.