£89 Cheap Flights from San Diego (SAN) to Washington (IAD)

Featured airlines

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 25% on select hotels after you book a flight*
  • payments icon
    Earn twice
    Earn your airline miles on top of our rewards

Cheap Flights from San Diego (SAN) to Washington (IAD)

Prices were available within the past 7 days and start at £89 for one-way flights and £178 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Alaska Airlines
Alaska Airlines
Alaska Airlines
Alaska Airlines
Alaska Airlines
Alaska Airlines
Alaska Airlines
Alaska Airlines
Alaska Airlines
Flight from San Diego to Washington route information
Origin airport
San Diego Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
Alaska Airlines
Return price
£178
Distance
3598 km

Compare flights from San Diego to Washington easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from San Diego to Washington. Operating between them 11 flights per day, 20 airlines cover the route. And American Airlines, Qatar Airways, Alaska Airlines, Austrian, Hawaiian Airlines, Brussels Airlines, United Airlines, Ethiopian Airlines fly direct, getting you to Washington Dulles Intl. in just 4hours. If you have a preferred carrier, use our advanced search tool to find the right flight from San Diego Intl. to Washington Dulles Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from San Diego Intl. (SAN) to Washington Dulles Intl. (IAD) 

The easiest way to view the best deals on flights from San Diego to Washington today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from San Diego Intl. to Washington Dulles Intl. start at just £178 and range up to £272.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near San Diego and Washington
  • booking your flight during May, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your San Diego to Washington flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from San Diego Intl. to Washington Dulles Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Frequently asked questions

How much is a flight from San Diego Intl. Airport (SAN) to IAD?
Start packing your suitcase, because round-trip flights between San Diego Airport and Washington Dulles Intl. Airport (IAD) start from £178. That’s based on fares advertised within the last 7 days on Expedia for flights departing within the next year. Prices can move quickly, so book today to get the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from San Diego Airport to Dulles Intl. Airport?
Each air carrier has its own set of terms and conditions. If you do decide to cancel, follow the instructions on our Customer Service Portal.
How do I find cheap flights from San Diego Airport to IAD that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you’re searching for San Diego Airport to IAD flights, you’ll see a “no change fees” filter for you to select.
How many hours is the flight from San Diego Airport to IAD?
The flight time from San Diego Airport to IAD is approximately 7 hours and 23 minutes. Put your headphones on, listen to your favourite playlist and your journey will whiz by.
How far is the flight from San Diego Airport to IAD?
It’s around 3,600 kilometres from San Diego Intl. Airport (SAN) to Dulles Intl. Airport, so you’ll be flying for a while. Keep yourself occupied with things like crossword puzzles or a thrilling novel.
Which airlines fly direct from San Diego Airport to Washington Dulles Intl. Airport (IAD)?
Offering 91 flights each month, United Airlines (UA) is a top choice when flying straight from SAN to Dulles Intl. Airport.
Are San Diego Intl. Airport (SAN) to Washington Dulles Intl. Airport (IAD) flight tickets cheaper when they're purchased at the last minute?
Booking your trip from San Diego Airport to Washington Dulles Intl. Airport (IAD) at the last minute could be your ticket to a fantastic deal. However, it could end up costing a good deal more! If you’d prefer not to take the risk, book well ahead of your departure date. In fact, Expedia has some of the best bargains up to a year in advance. If your preferred air carrier hasn’t released tickets yet, check back often as deals are updated all the time on Expedia.

Explore a world of travel with Expedia

*Available to Expedia members.