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$72+ Cheap flights from Seattle (SEA) to Berkeley, CA

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SFO
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Berkeley are usually found in January or February, booked 88 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap flight deals from Seattle to Berkeley

Keep the following information in mind while searching for Seattle to Berkeley flight deals. Data was last updated September 16, 2025.

Round-trip from

$131
(Alaska Airlines)

One-way from

$72
(Frontier)

Popular in

December

Cheapest in

January

Average price

$252
From Seattle/Tacoma Intl to Berkeley
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One-way flight from Seattle/Tacoma Intl to Berkeley
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Highest demand for flights based on searches. 2% potential increase in price ($5 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($4 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Seattle to Berkeley

Cheapest flights from Seattle to Berkeley
Explore the most affordable flight options available from Seattle to Berkeley. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This Alaska Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/147:00 amSEA - SFO
Nonstop2h 16mAlaska Airlines
Tue 10/1411:22 amSFO - SEA
Nonstop2h 16mAlaska Airlines
Deal found 9/15$131
This Hawaiian Airlines deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/147:00 amSEA - SFO
Nonstop2h 16mHawaiian Airlines
Sat 10/186:20 pmSFO - SEA
Nonstop2h 15mHawaiian Airlines
Deal found 9/15$137
This Trip.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/258:15 pmSEA - SFO
Nonstop2h 14mHawaiian Airlines
Mon 10/277:37 pmSFO - SEA
Nonstop2h 23mHawaiian Airlines
Deal found 9/14$138
This Hawaiian Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/78:00 amSEA - SFO
1 stop3h 51mHawaiian Airlines
Tue 10/77:54 pmSFO - SEA
Nonstop2h 21mHawaiian Airlines
Deal found 9/14$141
This Vliegwinkel deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/256:59 pmSEA - SFO
Nonstop2h 13mMultiple Airlines
Mon 10/2711:40 amSFO - SEA
Nonstop2h 19mMultiple Airlines
Deal found 9/14$142
This Frontier deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/234:26 pmSEA - SFO
1 stop5h 27mFrontier
Sun 10/264:55 pmSFO - SEA
1 stop15h 53mFrontier
Deal found 9/14$144
This Expedia deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/317:17 pmSEA - SFO
1 stop4h 52mMultiple Airlines
Tue 11/48:00 amSFO - SEA
Nonstop2h 23mMultiple Airlines
Deal found 9/15$146
This Alaska Airlines deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/148:00 amSEA - SFO
1 stop3h 51mAlaska Airlines
Sat 10/186:20 pmSFO - SEA
Nonstop2h 15mAlaska Airlines
Deal found 9/16$147

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Berkeley that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
Use the filters below to find and compare flights from Seattle to Berkeley that are best for you.

Fly from

Seattle

Fly to

Berkeley

Route

Depart

Return

Price

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Tue 10/21

8:42 am-10:59 am

Nonstop2h 17m

San Francisco

Sat 10/25

9:00 pm-11:20 pm

Nonstop2h 20m

$137

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Mon 11/3

1:31 pm-3:43 pm

Nonstop2h 12m

San Francisco

Tue 11/11

8:00 am-10:23 am

Nonstop2h 23m

$147

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Wed 10/15

11:20 am-4:03 pm

1 stop4h 43m

San Francisco

Wed 10/22

2:40 pm-4:58 pm

Nonstop2h 18m

$147

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Sat 11/1

1:20 pm-3:35 pm

Nonstop2h 15m

San Francisco

Mon 11/3

10:44 pm-12:59 am

Nonstop2h 15m

$147

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Tue 10/21

7:00 am-9:16 am

Nonstop2h 16m

San Francisco

Wed 10/22

8:00 am-2:35 pm

1 stop6h 35m

$147

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Sat 11/8

1:20 pm-3:35 pm

Nonstop2h 15m

San Francisco

Mon 11/10

10:44 pm-12:59 am

Nonstop2h 15m

$147

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Thu 10/9

7:00 am-9:16 am

Nonstop2h 16m

San Francisco

Mon 10/13

7:00 am-9:10 am

Nonstop2h 10m

$157

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Sat 11/22

8:10 pm-10:25 pm

Nonstop2h 15m

San Francisco

Sun 11/23

6:00 am-8:23 am

Nonstop2h 23m

$157

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Wed 12/10

4:40 pm-6:56 pm

Nonstop2h 16m

San Francisco

Sun 1/4

6:12 am-8:35 am

Nonstop2h 23m

$157

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Tue 11/4

5:20 am-8:55 am

1 stop3h 35m

San Francisco

Mon 11/10

2:46 pm-5:05 pm

Nonstop2h 19m

$157

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 21 results
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Best time to book a flight from Seattle to Berkeley

Have a flexible travel schedule? Discover the best time to fly to Berkeley from Seattle with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Berkeley

How far ahead should I book a flight from Seattle to Berkeley?

Use this chart to determine the optimal time to book a round-trip flight from Seattle to Berkeley. Price data was last updated on September 12, 2025.

To ensure you get the cheapest price possible for a flight from Seattle to Berkeley, you should look to book at least 30 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Seattle to Berkeley?

Currently, January is the cheapest month in which you can book a flight from Seattle to Berkeley (average of $276). Flying from Seattle to Berkeley in June is currently the most expensive (average of $357). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SEA to B9R?

Find hourly flight availability from Seattle to Berkeley. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Seattle to Berkeley as you normally would.

What is the cheapest day to fly from Seattle to Berkeley?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Berkeley. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Seattle to Berkeley flight should consider departing on Wednesday at noon when fares are most often at their lowest. Saturday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Seattle to Berkeley

Explore weekly flight availability from Seattle to Berkeley. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated September 16, 2025.

The most flights from SEA to B9R are scheduled on a Monday (109 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (51 on average).

Reviews of airlines servicing Berkeley

Get insights into the airlines that provide service to Berkeley. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Berkeley. Reviews last updated September 16, 2025.
Read reviews from past customers who have flown Alaska Airlines, Delta, and Hawaiian Airlines from Seattle to Berkeley. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,957 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Hawaiian Airlines
7.8
Good
2,724 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,924 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Frontier
5.8
Fair
3,174 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Comfort

7.8

Entertainment

7.1

Crew

8.5

Overall

8.0

Boarding

8.1

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Berkeley. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Seattle to Berkeley?

    Seattle/Tacoma Intl (SEA) is the airport you will fly out of if you book a flight from Seattle to Berkeley. You should not have trouble finding flights to Berkeley from Seattle/Tacoma Intl; the airport handles an average of 76 outbound flights to Berkeley per day. You should also have plenty of airline options to choose from since 8 airlines have flights from the Seattle airport to Berkeley. It is only a 11.4 mi journey to Seattle/Tacoma Intl (SEA) from Seattle’s city center.

  • How popular is this Seattle to Berkeley flight route?

    Within the past month, 134 users have taken a look at flights from Seattle/Tacoma Intl to Berkeley.

  • How long is the flight from Seattle to Berkeley?

    There are many flights that can get you from Seattle to Berkeley in 2h 12m. Fly via United Airlines or Alaska Airlines to get the fastest option. Airlines will cover a distance of 679 mi. All flights are typically nonstop.

  • What are the most reliable airlines from Seattle to Berkeley?

    Consider China Southern (100%), ITA Airways (100%) or SWISS (94%) when booking your flight. These represent the most reliable airlines when flying from Seattle to Berkeley.

  • What are the cheapest flights from Seattle to Berkeley?

    While on average a flight from Seattle to Berkeley is generally $750, our data shows the cheapest flight currently is $72. When looking at the most popular route, (Seattle/Tacoma Intl - San Francisco), you can expect to pay $95 for that flight.

  • Can I find deals for flights from Seattle to Berkeley that include hotel bookings?

    Yes. In addition to deals on Seattle to Berkeley flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Berkeley?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Berkeley.

  • Can I find deals for business class flights from Seattle to Berkeley?

    Yes. Cheapflights offers flight deals from Seattle to Berkeley by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Berkeley?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Berkeley (average of $276). Flying from Seattle to Berkeley in June is currently the most expensive (average of $357). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Top 8 airlines flying from Seattle to Berkeley

Discover the top 8 airlines that operate flights from Seattle to Berkeley. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Hawaiian AirlinesCheapest$88Average$250FlexibilityNo cancel feeOn-time85%
Spirit AirlinesCheapest$91Average$201FlexibilityNo cancel feeOn-time65%
DeltaCheapest$98Average$227FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$100Average$213FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$116Average$272FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$122Average$246FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$126Average$235FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$226Average$389FlexibilityNo cancel feeOn-time71%

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