$43 Cheap Flights from Oakland (OAK) to Seattle (SEA)

View $43 flight on Tue, Aug 5, 2025Opens in a new window

Popular airlines from Oakland Intl. Airport (OAK) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from Oakland to Seattle (OAK-SEA)

Prices were available within the past 7 days and start at $43 for one-way flights and $112 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Spirit Airlines
Wed, Aug 6 - Sat, Aug 16
OAK
Oakland
SEA
Seattle
$112 Roundtrip, found 9 hours ago
$112
Roundtrip
found 9 hours ago
Select Spirit Airlines flight, departing Wed, Aug 6 from Oakland to Seattle, returning Sat, Aug 16, priced at $112 found 9 hours ago
Spirit Airlines
Wed, Aug 6 - Tue, Aug 12
OAK
Oakland
SEA
Seattle
$112 Roundtrip, just found
$112
Roundtrip
just found
Select Spirit Airlines flight, departing Wed, Aug 6 from Oakland to Seattle, returning Tue, Aug 12, priced at $112 just found
Spirit Airlines
Wed, Aug 6 - Thu, Aug 7
OAK
Oakland
SEA
Seattle
$118 Roundtrip, found 5 hours ago
$118
Roundtrip
found 5 hours ago
Select Spirit Airlines flight, departing Wed, Aug 6 from Oakland to Seattle, returning Thu, Aug 7, priced at $118 found 5 hours ago
Spirit Airlines
Wed, Aug 6 - Mon, Aug 11
OAK
Oakland
SEA
Seattle
$125 Roundtrip, found 6 hours ago
$125
Roundtrip
found 6 hours ago
Select Spirit Airlines flight, departing Wed, Aug 6 from Oakland to Seattle, returning Mon, Aug 11, priced at $125 found 6 hours ago
Southwest Airlines
Sat, Nov 8 - Tue, Nov 11
OAK
Oakland
SEA
Seattle
$126 Roundtrip, found 2 days ago
$126
Roundtrip
found 2 days ago
Select Southwest Airlines flight, departing Sat, Nov 8 from Oakland to Seattle, returning Tue, Nov 11, priced at $126 found 2 days ago
Alaska Airlines
Tue, Aug 12 - Fri, Aug 15
OAK
Oakland
SEA
Seattle
$137 Roundtrip, just found
$137
Roundtrip
just found
Select Alaska Airlines flight, departing Tue, Aug 12 from Oakland to Seattle, returning Fri, Aug 15, priced at $137 just found
Spirit Airlines
Wed, Aug 6 - Fri, Aug 8
OAK
Oakland
SEA
Seattle
$142 Roundtrip, found 3 hours ago
$142
Roundtrip
found 3 hours ago
Select Spirit Airlines flight, departing Wed, Aug 6 from Oakland to Seattle, returning Fri, Aug 8, priced at $142 found 3 hours ago
Spirit Airlines
Wed, Aug 6 - Tue, Aug 12
OAK
Oakland
SEA
Seattle
$142 Roundtrip, just found
$142
Roundtrip
just found
Select Spirit Airlines flight, departing Wed, Aug 6 from Oakland to Seattle, returning Tue, Aug 12, priced at $142 just found
Delta
Tue, Sep 9 - Fri, Sep 12
OAK
Oakland
SEA
Seattle
$148 Roundtrip, just found
$148
Roundtrip
just found
Select Delta flight, departing Tue, Sep 9 from Oakland to Seattle, returning Fri, Sep 12, priced at $148 just found
Hawaiian Airlines
Wed, Oct 1 - Tue, Oct 7
OAK
Oakland
PAE
Seattle
$325 Roundtrip, found 2 days ago
$325
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Wed, Oct 1 from Oakland to Seattle, returning Tue, Oct 7, priced at $325 found 2 days ago

Find the cheapest month to fly from Oakland (OAK) to Seattle (SEA)

October is typically the cheapest month to fly

From $69 - $157 per traveler.

Graph displaying average flight prices per month

Alternative airports near Seattle

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Boeing Field BFI. Cheapest option available. Average driving time to city center is 10 minutes. Flights from $823
BFI
Boeing Field
Cheapest
Average driving time to city center10 min
Flights from $823
Flights from Oakland (OAK) to Seattle (SEA)
Origin airport
Oakland Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Alaska Airlines, Delta, Hawaiian Airlines, Southwest Airlines, Spirit Airlines
Roundtrip price
$77
Distance
672 mi
Average flight time
2 hours 2 mins

Oakland to Seattle Flights

The cheapest times to fly from Oakland to Seattle

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 Oakland to Seattle are during the month of August. You can find some of the cheapest flights from Oakland to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Oakland to Seattle

Sunday is one of the best days to book for cheap flights from Oakland to Seattle: 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 Oakland to Seattle

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 Oakland to Seattle in 2025. You can also book with separate airlines for your outbound and return journeys, from $43 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 Oakland to Seattle 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 Oakland to Seattle 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.

 

Frequently asked questions

How much does a flight from Oakland Intl. Airport (OAK) to Seattle - Tacoma Intl. Airport (SEA) cost?
Cheap round-trip flights from Oakland Intl. Airport (OAK) to Seattle - Tacoma Intl. Airport (SEA) start at $84. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Southwest Airlines flight leaving OAK on August 6 2025 and touching down at SEA. The price was last updated on July 10 2025 and has not changed since.
What is the cheapest month to fly from OAK to SEA?
The cheapest flights from OAK to SEA are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Oakland Intl. Airport (OAK) to Seattle - Tacoma Intl. Airport (SEA)?
Jump on a direct flight with Alaska Airlines and fly straight from Oakland Intl. Airport (OAK) to Seattle - Tacoma Intl. Airport (SEA).
What is the cheapest airline that flies from OAK to SEA?
With fares starting at $42 for a one-way flight from OAK to SEA, Southwest Airlines is currently the cheapest carrier for this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from OAK on October 4 2025. Prices were last updated on July 10 2025 and have not changed since.
How many flights per day from Oakland Intl. Airport (OAK) to Seattle - Tacoma Intl. Airport (SEA)?
Daily, an average of 6 direct flights operate from Oakland Intl. Airport (OAK) to Seattle - Tacoma Intl. Airport (SEA). Pick the departure time that works for you.
What are the most popular departure times for flights from Oakland Intl. Airport (OAK) to Seattle - Tacoma Intl. Airport (SEA)?
Flights between OAK and SEA are busiest at 9 AM. If you're after a more relaxed atmosphere and possibly cheaper prices, choose a departure outside the usual busy windows.
What day of the week has the most flights from OAK to SEA?
Travel on a Friday if you're looking for the biggest selection of flights from Oakland Intl. Airport (OAK) to Seattle - Tacoma Intl. Airport (SEA).
What is the earliest flight from Oakland Intl. Airport (OAK) to Seattle - Tacoma Intl. Airport (SEA)?
The first flight of the day jetting off from Oakland Intl. Airport (OAK) is at around 6:32AM UTC-8. Board this plane and you'll reach Seattle - Tacoma Intl. Airport (SEA) at approximately 8:45AM UTC-8. The total flight duration is 2h 13m.
How long does it take to fly from Oakland Intl. Airport (OAK) to Seattle - Tacoma Intl. Airport (SEA)?
The average flight duration from OAK to SEA is 2 hours and 11 minutes, covering a distance of 670 mi.
What is the best time to fly from Oakland Intl. Airport (OAK) to Seattle - Tacoma Intl. Airport (SEA)?
Choose a flight from Oakland Intl. Airport (OAK) to Seattle - Tacoma Intl. Airport (SEA) that leaves before 3 PM to reduce the likelihood of delays. Departures later than this are on average 22% more likely to be canceled.**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.
What airports do you fly into for Seattle from Oakland Intl. Airport (OAK)?
Check out your flight options from Oakland Intl. Airport (OAK) to Seattle - Tacoma Intl. Airport (SEA). This is the only airport in Seattle you can arrive at if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Oakland Intl. Airport (OAK) to Seattle - Tacoma Intl. Airport (SEA) last-minute?
Booking your ticket from OAK to SEA shortly before your getaway is generally more expensive. But if there's some wiggle room with your schedule, you could snag a cheap last-minute fare.
Is it cheaper to book an OAK to SEA flight and hotel package?
Compared with arranging flights and hotels separately, booking an OAK to SEA flight and hotel package with Expedia could result in significant savings. Better still, having everything in one convenient place will take the stress out of travel planning. Simply pick your flights and select from our extensive range of hotels, then customize your trip with other add-ons like car rentals and activities.
Can I cancel or change the date of my flight from Oakland Intl. Airport (OAK) to Seattle - Tacoma Intl. Airport (SEA)?
If you reserved your OAK to SEA flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal for more information.

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