Cheap Flights from San Francisco (SFO) to Washington (IAD)

You can find one-way and return flights from SFO to IAD with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when SFO to IAD ticket fares go up or down.

The cheapest months to fly from San Francisco, CA (SFO) to Washington, DC (IAD) are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.

Only one airline offers direct flights from San Francisco Intl. (SFO) to Washington Dulles Intl. (IAD).

United operates 72 direct flights from San Francisco Intl. to Washington Dulles Intl. every week.

To find a cheap flight from San Francisco, CA (SFO-San Francisco Intl.) to Washington, DC (IAD-Washington Dulles Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.

The best airline to fly with from San Francisco, CA (SFO-San Francisco Intl.) to Washington, DC (IAD-Washington Dulles Intl.) will differ from traveler to traveler. If you like to fly early, United offers early morning flights. If price is the most important factor, United typically offers the lowest fares. United offers the most daily flights from SFO to IAD, which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.

The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.

You'll find around 10 nonstop flights per day from San Francisco International Airport (SFO) to Washington Dulles International Airport (IAD). For even more choices, look at flights that include layovers, as there are approximately 156 connecting flights per day. Some common connection points include Los Angeles International (LAX), Seattle - Tacoma International (SEA), and O'Hare International (ORD).

The earliest flight from San Francisco, CA (SFO-San Francisco Intl.) to Washington, DC (IAD-Washington Dulles Intl.) typically departs around 12:05 AM local time. This service is operated by Delta. This is a seasonal service, active only in May. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.

You'll generally find the most flights from San Francisco International Airport (SFO) to Washington Dulles International Airport (IAD) on a Thursday, with around 88 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include United, Alaska Airlines, and Delta. Flight schedules are quite consistent throughout the week, so you'll have a good selection of flights regardless of the day you choose to fly.

The most popular departure times for flights from San Francisco Intl. (SFO) to Washington Dulles Intl. (IAD) are in the late evening, from 9pm to midnight. Many major carriers, including United, Delta and American Airlines, offer flights during this window. This timing works well because you can make the most of your day in San Francisco before your evening flight, and you'll arrive in Washington, DC in the morning.

A non-stop flight from San Francisco, CA (SFO-San Francisco Intl.) to Washington, DC (IAD-Washington Dulles Intl.) typically takes around 5 hours 18 minutes. This route covers a distance of approximately 3,885 kilometers. If you opt for a flight with one stop, your journey will generally take longer, averaging about 7 hours 30 minutes. Flights with two or more stops usually take around 11 hours 18 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic.

You can fly business class or first class between SFO and IAD. Airlines that offer business class service on this route include:

* Frontier Airlines
* Delta
* American Airlines

First class cabins are available on:

* Alaska Airlines
* Delta
* United
* American Airlines

It's easy to earn miles on a San Francisco, CA (SFO) to Washington, DC (IAD) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.

*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.

From San Francisco Intl. (SFO), you can fly directly into Washington Dulles Intl. (IAD) in Washington. Some flights may connect through major hubs like Los Angeles Intl. (LAX), Portland Intl. (PDX), or San Diego Intl. (SAN) before reaching Washington. Compare routes and airports on Expedia to find the best flight options for your travel plans.

Typically, booking a last minute flight from San Francisco, CA (SFO) to Washington, DC (IAD) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.

Securing a San Francisco, CA (SFO) to Washington, DC (IAD) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.

If you booked your San Francisco, CA (SFO-San Francisco Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.