$149 Cheap Delta flights Washington (IAD) to Oakland (OAK)

Finding cheap one-way Delta Air Lines flights from IAD to OAK from $149 on Expedia is easy — just filter by “Price (lowest to highest).” Or check out our affordable round-trip fares from $297 for your next adventure.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Delta Air Lines flights to Oakland are often cheaper in the quieter months of January and February. Whether you’re in search of a one-way or round-trip ticket, you could score a better deal then.

To find cheap Delta Air Lines fares from Washington Dulles Intl. Airport (IAD) to Oakland Intl. Airport (OAK), start searching one to three months before your planned departure. Reserving domestic flights 34 to 86 days in advance could save you 25% compared to booking just 6 to 12 days ahead. The day you book can also affect the overall price. Sunday tends to be the cheapest, while Monday is often the most expensive for domestic flights. You can save 6% on average by booking on a Sunday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

To find out if there’s a direct trip from IAD to OAK with Delta Air Lines or any other airlines, select the “Nonstop” filter when searching for flights.

Filter your results by “Early Morning” and “Morning” to browse the earliest departures from IAD to OAK. Setting off early means you’re 20% less likely to experience cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Oakland Intl. Airport (OAK) is the main Oakland gateway for Delta Air Lines flights from Washington Dulles Intl. Airport (IAD).

Jetting off from IAD to OAK with Delta Air Lines comes with a range of perks, including an excellent in-flight experience and a rewarding loyalty program. Plus, when you book through Expedia, One Key™ members can earn OneKeyCash™* to redeem on select future travel purchases. That’s in addition to the Delta SkyMiles points you can earn with Delta Air Lines.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.

In most cases, you can reschedule or cancel your flight, although additional charges may apply if your booking was made more than 24 hours ago. Need flexible options? Apply the “No cancel fee” or “Changes included” filter to find flights that won’t penalize you if you need to adjust your plans. To modify your itinerary, head to “Trips,” select your flight and click on “Manage Booking” for further information.