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$62+ 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 1/19. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SFO
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
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 58 days in advance, depart on a Friday or Thursday and return on a Friday

Cheap 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 December 23, 2025.

This Frontier deal was found by Cheapflights users on 12/21. 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.
Fri 12/262:54 pmSEA - SFO
1 stop9h 30mFrontier
Thu 1/88:48 amSFO - SEA
1 stop8h 49mFrontier
Deal found 12/21$282
This Trip.com deal was found by Cheapflights users on 12/21. 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.
Wed 12/311:25 pmSEA - SFO
1 stop18h 58mFrontier
Wed 1/74:01 pmSFO - SEA
1 stop17h 03mFrontier
Deal found 12/21$298
This Frontier deal was found by Cheapflights users on 12/20. 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.
Fri 12/262:54 pmSEA - SFO
1 stop9h 30mFrontier
Fri 1/910:08 pmSFO - SEA
1 stop10h 56mFrontier
Deal found 12/20$317
This Trip.com deal was found by Cheapflights users on 12/21. 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.
Sun 12/2811:06 amSEA - SFO
1 stop12h 46mFrontier
Sun 1/410:31 pmSFO - SEA
1 stop19h 07mFrontier
Deal found 12/21$340
This Frontier deal was found by Cheapflights users on 12/20. 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 12/251:25 pmSEA - SFO
1 stop10h 59mFrontier
Thu 1/88:48 amSFO - SEA
1 stop8h 49mFrontier
Deal found 12/20$342
This Delta deal was found by Cheapflights users on 12/22. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/233:30 pmSEA - SFO
Nonstop2h 20mDelta
Wed 1/142:39 pmSFO - SEA
Nonstop2h 19mDelta
Deal found 12/22$357
This Trip.com deal was found by Cheapflights users on 12/22. 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.
Tue 12/231:25 pmSEA - SFO
1 stop25h 46mFrontier
Sun 1/410:31 pmSFO - SEA
1 stop19h 07mFrontier
Deal found 12/22$362
This Super.com deal was found by Cheapflights users on 12/21. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/272:54 pmSEA - SFO
1 stop9h 30mFrontier
Sun 12/2810:31 pmSFO - SEA
1 stop19h 07mFrontier
Deal found 12/21$372
This Orbitz deal was found by Cheapflights users on 12/20. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/231:25 pmSEA - SFO
1 stop25h 46mMultiple Airlines
Tue 1/67:00 amSFO - SEA
Nonstop2h 17mMultiple Airlines
Deal found 12/20$385
This Super.com deal was found by Cheapflights users on 12/22. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/262:54 pmSEA - SFO
1 stop9h 30mFrontier
Sun 12/2810:31 pmSFO - SEA
1 stop19h 07mFrontier
Deal found 12/22$393

Find flight deals from Seattle to Berkeley

Keep the following information in mind while searching for Seattle to Berkeley flight deals. Data was last updated December 23, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$116
(Kiwi.com)

One-way from

$62
(United Airlines)

Popular in

December

Cheapest in

January

Average price

$290
Provider with most accurate pricing for Seattle/Tacoma Intl-San Francisco flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-San Francisco flights.
Search Deals
From Seattle/Tacoma Intl to Berkeley
Search Deals
One-way flight from Seattle/Tacoma Intl to Berkeley
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($8 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($5 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 23, 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

Wed 2/18

11:17 am-5:56 pm

1 stop6h 39m

San Francisco

Mon 2/23

5:05 pm-12:09 am

1 stop7h 04m

$117

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Sat 2/28

11:17 am-5:56 pm

1 stop6h 39m

San Francisco

Tue 3/3

9:55 am-2:44 pm

1 stop4h 49m

$117

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Fri 3/13

5:55 pm-11:16 pm

1 stop5h 21m

San Francisco

Mon 3/16

5:00 pm-12:03 am

1 stop7h 03m

$117

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Wed 1/21

9:55 am-5:47 pm

1 stop7h 52m

San Francisco

Wed 1/28

1:35 pm-6:42 pm

1 stop5h 07m

$117

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Sat 1/10

9:20 pm-11:28 pm

Nonstop2h 08m

San Francisco

Tue 1/13

9:50 am-4:38 pm

1 stop6h 48m

$117

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Sat 1/24

5:00 am-12:23 pm

1 stop7h 23m

San Francisco

Tue 1/27

5:55 am-12:57 pm

1 stop7h 02m

$117

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Mon 2/2

9:55 am-5:47 pm

1 stop7h 52m

San Francisco

Thu 2/5

4:03 pm-11:22 pm

1 stop7h 19m

$117

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Fri 2/27

7:00 pm-11:54 pm

1 stop4h 54m

San Francisco

Sat 2/28

1:15 pm-8:30 pm

1 stop7h 15m

$117

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Sat 1/10

12:40 pm-8:35 pm

1 stop7h 55m

San Francisco

Tue 1/13

2:35 pm-11:05 pm

1 stop8h 30m

$151

SeattleSan Francisco

SEA - SFO

SEASFO

Seattle/Tacoma Intl

Thu 1/15

8:35 am-2:50 pm

1 stop6h 15m

San Francisco

Tue 1/20

5:30 am-12:20 pm

1 stop6h 50m

$151

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/21

Showing 1-10 of 22 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 December 19, 2025.

To ensure you get the cheapest price possible for a flight from Seattle to Berkeley, you should look to book at least 58 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 $87). Flying from Seattle to Berkeley in May is currently the most expensive (average of $137). 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 December 23, 2025.

One of the essential ways to save on airfare from Seattle to Berkeley is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 28% on airfare.

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 Friday mornings when fares are most often at their lowest. Sunday 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 December 23, 2025.

The most flights from SEA to B9R are scheduled on a Tuesday (90 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (22 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 December 23, 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
11,518 reviews

Boarding

8.1

Entertainment

7.0

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Alaska Airlines
8.0
Very good
11,518 reviews
Alaska Airlines
8.0
Very good
11,518 reviews

Boarding

8.1

Entertainment

7.0

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Delta
7.9
Good
8,015 reviews
Alaska Airlines
8.0
Very good
11,518 reviews

Boarding

8.1

Entertainment

7.0

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Hawaiian Airlines
7.8
Good
2,820 reviews
Alaska Airlines
8.0
Very good
11,518 reviews

Boarding

8.1

Entertainment

7.0

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
United Airlines
7.4
Good
9,107 reviews
Alaska Airlines
8.0
Very good
11,518 reviews

Boarding

8.1

Entertainment

7.0

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.
Frontier
5.8
Fair
3,074 reviews
Alaska Airlines
8.0
Very good
11,518 reviews

Boarding

8.1

Entertainment

7.0

Crew

8.5

Food

7.1

Overall

8.0

Comfort

7.8

Reviews

1 / 20
8.0
Excellent

Anonymous,Sep 2025

SEA - MKE

The crew were excellent, flight good, but the actual space for a person to occupy for 4 hours seems to get smaller and smaller 🤣. I am not overweight, and average height….very uncomfortable,, especially when I couldn’t recliner the seat at all, and the pocket in front doesn’t accommodate a water bottle.

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 54 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, 118 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 6h 39m. Fly via Delta to get the fastest option. Airlines will cover a distance of 679 mi.

  • What are the cheapest airlines to fly from Seattle to Berkeley one-way?

    One-way options have recently been found by users for as low as $65 on Delta. Other airlines that offer cheap prices include United Airlines from $68 and Alaska Airlines from $69 one-way.

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

    Consider Air New Zealand (81%), Qantas Airways (81%) or Fiji Airways (81%) 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 $797, our data shows the cheapest flight currently is $58. When looking at the most popular route, (Seattle/Tacoma Intl - San Francisco), you can expect to pay $86 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 $87). Flying from Seattle to Berkeley in May is currently the most expensive (average of $137). 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 December 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$59Average$195FlexibilityNo cancel feeOn-time65%
Hawaiian AirlinesCheapest$88Average$265FlexibilityNo cancel feeOn-time85%
DeltaCheapest$98Average$221FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$100Average$210FlexibilityNo cancel feeOn-time62%
Alaska AirlinesCheapest$117Average$288FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$118Average$240FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$127Average$225FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$227Average$386FlexibilityNo cancel feeOn-time71%

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