$74 Cheap flight deals from San Bernardino (QLA) to Seattle (SEA)

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This Weekend's Flight Deals from San Bernardino to Seattle

This weekend's flight prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Mar 28 - Mon, Mar 30
ONT
Los Angeles - Ontario Intl.
SEA
Seattle - Tacoma Intl.
$435 Roundtrip, found 19 hours ago
$435
Roundtrip
found 19 hours ago
Select Alaska Airlines flight, departing Sat, Mar 28 from Los Angeles - Ontario Intl. to Seattle - Tacoma Intl., returning Mon, Mar 30, priced at $435 found 19 hours ago
Sat, Mar 28 - Mon, Mar 30
PSP
Palm Springs Intl.
SEA
Seattle - Tacoma Intl.
$608 Roundtrip, found 6 days ago
$608
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Sat, Mar 28 from Palm Springs Intl. to Seattle - Tacoma Intl., returning Mon, Mar 30, priced at $608 found 6 days ago
Sat, Mar 28 - Mon, Mar 30
PSP
Palm Springs Intl.
PAE
Seattle Paine Field Intl. Airport
$809 Roundtrip, found 2 days ago
$809
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Sat, Mar 28 from Palm Springs Intl. to Seattle Paine Field Intl. Airport, returning Mon, Mar 30, priced at $809 found 2 days ago

Airfares from $74 One Way, $144 Round Trip from San Bernardino to Seattle

Prices starting at $144 for return flights and $74 for one-way flights to Seattle were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Sat, Apr 18 - Wed, Apr 22
ONT
Ontario
SEA
Seattle
$144 Roundtrip, just found
$144
Roundtrip
just found
Select Frontier Airlines flight, departing Sat, Apr 18 from Ontario to Seattle, returning Wed, Apr 22, priced at $144 just found
Fri, Apr 17 - Sun, Apr 19
ONT
Ontario
SEA
Seattle
$155 Roundtrip, just found
$155
Roundtrip
just found
Select Frontier Airlines flight, departing Fri, Apr 17 from Ontario to Seattle, returning Sun, Apr 19, priced at $155 just found
Mon, Jun 1 - Tue, Jun 9
ONT
Ontario
SEA
Seattle
$182 Roundtrip, found 6 days ago
$182
Roundtrip
found 6 days ago
Select Alaska Airlines flight, departing Mon, Jun 1 from Ontario to Seattle, returning Tue, Jun 9, priced at $182 found 6 days ago
Wed, Apr 29 - Sun, May 3
ONT
Ontario
SEA
Seattle
$207 Roundtrip, found 2 hours ago
$207
Roundtrip
found 2 hours ago
Select Delta flight, departing Wed, Apr 29 from Ontario to Seattle, returning Sun, May 3, priced at $207 found 2 hours ago
Thu, Apr 16 - Tue, Apr 21
PSP
Palm Springs
SEA
Seattle
$217 Roundtrip, just found
$217
Roundtrip
just found
Select Alaska Airlines flight, departing Thu, Apr 16 from Palm Springs to Seattle, returning Tue, Apr 21, priced at $217 just found

Seattle economy flight packages

Price found within the past 48 hours. Click for updated prices.
Mediterranean Inn
3.0-star property

Mediterranean Inn

9.4/10 Exceptional! (5,812 reviews)

Apr 30 - May 3

3 night stay

Ontario (ONT) to Seattle (SEA)

Southwest Airlines • Non-stop • Coach

Seattle (SEA) to Ontario (ONT)

Frontier Airlines • Non-stop • Coach
Price was $651, price is now $478 per person
$478
per person
found 1 day ago
Staff was super friendly and parking was easy. It is so close to Climate Pledge Arena I stay here anytime I have an event to go to there.

Reviewed on Jan 2, 2026

Mayflower Park Hotel
4.0-star property

Mayflower Park Hotel

9.4/10 Exceptional! (2,492 reviews)

Apr 30 - May 3

3 night stay

Ontario (ONT) to Seattle (SEA)

Southwest Airlines • Non-stop • Coach

Seattle (SEA) to Ontario (ONT)

Frontier Airlines • Non-stop • Coach
Save 100% on your flight
Price was $705, price is now $485 per person
$485
per person
found 1 day ago
Very nice place... old fashioned and well kept

Reviewed on Nov 13, 2025

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More About Flying To Seattle from San Bernardino

Route Information for Flights from San Bernardino to Seattle

Origin Airport IATA Code
QLA
Destination Airport IATA Code
SEA
Distance
Direct Flight Airlines
Earliest Flight Arrival
Latest Flight Arrival

San Bernardino to Seattle

When you’re searching for San Bernardino to Seattle flights for your family vacation, check out the guaranteed low prices at Orbitz. If you are looking for the best prices on hotels too, you’ll be sure to find great deals to suit your budget. You’ll also benefit from the following features:

Suitable Schedules

Orbitz simplifies the process of finding and booking budget flights from San Bernardino to Seattle. Since we monitor hundreds of flight fares, you can compare several flights from a range of different airlines to find the best fares and most suitable departure and arrival times. Mix and match your departure and return flight for even more discounts and travel flexibility.

Mobile Apps

Taking a lunch break or waiting to pick up the kids? Orbitz’s cutting-edge mobile tools will help you search for cheap San Bernardino to Seattle flights anywhere you are. Get exclusive mobile deals on flights, hotels, vacation packages, and cruises too.

Flight Alerts

Orbitz won’t leave you wondering whether your flight will take off on time. We can send you free alerts about your flights from San Bernardino to Seattle to your mobile phone and email. Whether your flights from San Bernardino to Seattle are running just a few minutes to a few hours late, we will let you know.

Miles and Points

If you travel regularly, you can still earn miles and points when you book qualifying San Bernardino to Seattle flights. Enter your frequent flyer number with your reservation to see the miles rack up.

Frequently asked questions

Are there non-stop flights from San Bernardino to Seattle?
You bet there are, which is fantastic news if you're not a fan of switching planes en route. Alaska Airlines and Delta offer nonstop flights from Ontario Airport to SEA.
What is the shortest flight from San Bernardino to Seattle?
The journey from San Bernardino to Seattle can be as quick as 2 hours and 39 minutes. With an easy flight time like this, why not book a spontaneous getaway?
What airlines fly from San Bernardino to Seattle most frequently?
Alaska Airlines (AS) offers 108 flights every month between Los Angeles - Ontario Intl. Airport (ONT) to Sea-Tac Airport. Your next epic adventure is just a few clicks away. Also investigate the great deals available with Delta (DL). Offering 91 flights each month between San Bernardino and Seattle, they'll ensure your journey is just as good as the destination.
What is the cheapest day of the week to fly?
Consider flying out early in the week to save on your airfare. Orbitz data from 2021 shows that Monday is the cheapest day to depart, followed by Tuesday. Saturday showed the highest average ticket prices likely because many travelers prefer to start their vacation on a weekend.
What is the cheapest month to fly?
We won't keep you guessing, according to Orbitz data from 2021, the cheapest month to fly is February. Perfect for those who need a weekend getaway, or just a break from it all in the shortest month of the year. Be aware that the most expensive time to fly is during the height of summer in July, and in the holiday month of December.*According to flight demand on Orbitz.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

More Destinations

Fare, taxes & fees: Fares include all taxes and fees, except baggage fees. Rates shown reflect fares found by other Orbitz users over the past 7 days. Due to rapidly changing airline prices & seat availability, these fares may no longer be available.

Refunds/changes/cancellations: Itinerary changes, if permitted for the fare, will have a $30 service fee charged by Orbitz. Additional airline charges may apply.

Other conditions: Schedules, fares and rules are subject to change without notice. Seats are limited and may not be available on all flights/dates or in all markets. Lower fares may be available. Fares will not be honored retroactively or in exchange for any wholly/partially unused ticket. Tickets are non-transferable and non-refundable. Fare rules are provided for the selected itinerary before booking.