Cheap Flights from San Carlos (SQL) to Washington (IAD)

Popular airlines from San Carlos, CA (SQL) to Washington Dulles Intl. Airport (IAD)

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Frequently asked questions

How much does a flight from San Carlos Airport (SQL) to Washington Dulles Intl. Airport (IAD) cost?
Grab a cheap one-way flight or cheap return flight from San Carlos Airport (SQL) to Washington Dulles Intl. Airport (IAD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from San Carlos Airport (SQL) to Washington Dulles Intl. Airport (IAD)?
is the least expensive month to fly from SQL to IAD. Traveling outside of peak seasons is often the key to finding better fares.
Which airlines fly direct from San Carlos Airport (SQL) to Washington Dulles Intl. Airport (IAD)?
There's no direct route from San Carlos, CA (SQL) to Washington Dulles Intl. Airport (IAD). However, there are other airports with nonstop flights. Board your plane at San Francisco Intl. Airport (SFO) and travel straight to Washington without a layover.
What is the cheapest airline that flies from San Carlos Airport (SQL) to Washington Dulles Intl. Airport (IAD)?
To find the cheapest airline that'll fly you from SQL to IAD, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and seat class. You can then sort your results by "Price (lowest to highest)" to see the cheapest fares upfront.
How many flights per day from San Carlos Airport (SQL) to Washington Dulles Intl. Airport (IAD)?
There are no daily direct flights available from San Carlos Airport (SQL) to Washington Dulles Intl. Airport (IAD). But you can opt for flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be cruising above the clouds in no time.
What day of the week has the most flights from SQL to IAD?
Typically you'll have the most choice when it comes to flights on a Friday. Tuesdays tend to be the quietest.* But this can vary based on the season, airline and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from San Carlos Airport (SQL) to Washington Dulles Intl. Airport (IAD)?
To avoid potential delays on the San Carlos Airport (SQL) to Washington Dulles Intl. Airport (IAD) route, aim to travel before 3 PM. Departures after this hour have a 22% higher chance of cancellation.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from San Carlos Airport (SQL) to Washington Dulles Intl. Airport (IAD) last-minute?
Booking your flight from SQL to IAD shortly before your trip is usually more expensive. However, if you're flexible with your departure dates and times, you could grab a cheap last-minute fare.
Is it cheaper to book a SQL to IAD flight and hotel package?
Opting for a SQL to IAD flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels all in one place. Select from our wide range of stays and then add activities, flights and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from San Carlos Airport (SQL) to Washington Dulles Intl. Airport (IAD)?
If you booked your SQL to IAD flight in the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, visit our Customer Service portal if you want more information.

Travel information

Origin airport
San Carlos
Destination airport
Washington Dulles Intl.
Distance
2408 mi

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San Carlos to Washington Flights

The cheapest times to fly from San Carlos to Washington

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from San Carlos to Washington are during the month of . You can find some of the cheapest flights from San Carlos to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from San Carlos to Washington

Sunday is one of the best days to book for cheap flights from San Carlos to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from San Carlos to Washington

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from San Carlos to Washington in 2026. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap San Carlos to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your San Carlos to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

San Carlos to Washington Flights

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*Available to One Key members.