$29 Cheap flight deals from Seattle (SEA) to San Bernardino (QLA)

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This Weekend's Flight Deals from Seattle to San Bernardino

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.

Sun, Dec 21 - Fri, Jan 30
SEA
Seattle - Tacoma Intl.
PSP
Palm Springs Intl.
$416 Roundtrip, found 4 days ago
$416
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Sun, Dec 21 from Seattle - Tacoma Intl. to Palm Springs Intl., returning Fri, Jan 30, priced at $416 found 4 days ago
Sat, Dec 20 - Thu, Dec 25
SEA
Seattle - Tacoma Intl.
ONT
Los Angeles - Ontario Intl.
$428 Roundtrip, found 5 hours ago
$428
Roundtrip
found 5 hours ago
Select Southwest Airlines flight, departing Sat, Dec 20 from Seattle - Tacoma Intl. to Los Angeles - Ontario Intl., returning Thu, Dec 25, priced at $428 found 5 hours ago
Fri, Dec 19 - Thu, Dec 25
PAE
Seattle Paine Field Intl. Airport
ONT
Los Angeles - Ontario Intl.
$596 Roundtrip, found 2 days ago
$596
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Fri, Dec 19 from Seattle Paine Field Intl. Airport to Los Angeles - Ontario Intl., returning Thu, Dec 25, priced at $596 found 2 days ago
Sun, Dec 21 - Thu, Jan 1
PAE
Seattle Paine Field Intl. Airport
PSP
Palm Springs Intl.
$689 Roundtrip, found 3 days ago
$689
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Sun, Dec 21 from Seattle Paine Field Intl. Airport to Palm Springs Intl., returning Thu, Jan 1, priced at $689 found 3 days ago

Airfares from $29 One Way, $90 Round Trip from Seattle to San Bernardino

Prices starting at $90 for return flights and $29 for one-way flights to San Bernardino were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Thu, Jan 8 - Sun, Jan 11
SEA
Seattle
ONT
Ontario
$90 Roundtrip, found 8 hours ago
$90
Roundtrip
found 8 hours ago
Select Frontier Airlines flight, departing Thu, Jan 8 from Seattle to Ontario, returning Sun, Jan 11, priced at $90 found 8 hours ago
Tue, Feb 10 - Sat, Feb 14
SEA
Seattle
PSP
Palm Springs
$99 Roundtrip, found 2 days ago
$99
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Tue, Feb 10 from Seattle to Palm Springs, returning Sat, Feb 14, priced at $99 found 2 days ago
Fri, Mar 6 - Tue, Mar 10
SEA
Seattle
ONT
Ontario
$99 Roundtrip, found 3 days ago
$99
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Fri, Mar 6 from Seattle to Ontario, returning Tue, Mar 10, priced at $99 found 3 days ago
Tue, Mar 10 - Wed, Mar 18
SEA
Seattle
PSP
Palm Springs
$99 Roundtrip, found 4 days ago
$99
Roundtrip
found 4 days ago
Select Delta flight, departing Tue, Mar 10 from Seattle to Palm Springs, returning Wed, Mar 18, priced at $99 found 4 days ago
Mon, Jan 19 - Sat, Jan 24
PAE
Seattle
PSP
Palm Springs
$119 Roundtrip, found 2 days ago
$119
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Mon, Jan 19 from Seattle to Palm Springs, returning Sat, Jan 24, priced at $119 found 2 days ago

San Bernardino economy flight packages

Price found within the past 48 hours. Click for updated prices.
Holiday Inn Express & Suites Loma Linda- San Bernardino S by IHG
2.5-star property

Holiday Inn Express & Suites Loma Linda- San Bernardino S by IHG

8.8/10 Excellent! (1,003 reviews)

Jan 18 - Jan 25

7 night stay

Seattle (SEA) to Ontario (ONT)

Alaska Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $561, price is now $376 per person
$376
per person
found 21 hours ago
We had a nice stay the only problem was that it was over 100 out and the AC was not on in the elevator or hallway

Reviewed on Jul 11, 2025

Best Western Plus Heritage Inn Ontario Rancho Cucamonga
2.5-star property

Best Western Plus Heritage Inn Ontario Rancho Cucamonga

8.8/10 Excellent! (1,000 reviews)

Jan 18 - Jan 25

7 night stay

Seattle (SEA) to Ontario (ONT)

Alaska Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $762, price is now $474 per person
$474
per person
found 21 hours ago
Clean room, easy parking, numerous shopping and dining options nearby.

Reviewed on Sep 13, 2025

Courtyard by Marriott Riverside UCR/Moreno Valley Area
3.0-star property

Courtyard by Marriott Riverside UCR/Moreno Valley Area

8.4/10 Very Good! (999 reviews)

Jan 18 - Jan 25

7 night stay

Seattle (SEA) to Ontario (ONT)

Alaska Airlines • Roundtrip • Coach
Save 100% on your flight
Price was $623, price is now $404 per person
$404
per person
found 21 hours ago
Nice facility, even my single room felt pretty special. Unique in that there was a historical building right on the property. What WASN'T great was getting charged an extra $10 for parking; the rest of my family--in a different room--didn't have that happen at all.

Reviewed on Jun 14, 2022

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More About Flying To San Bernardino from Seattle

Route Information for Flights from Seattle to San Bernardino

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

Seattle to San Bernardino

Orbitz is the number one travel site for finding guaranteed low prices on Seattle to San Bernardino flights. Not only do we have discount tickets on domestic and international tickets but our cutting-edge mobile tools keep you informed on the go.

Find Low Prices in One Place

Booking a trip from Seattle to San Bernardino has never been easier. Not only will you find great deals on flights, we offer bargains on cruises, car rentals, top-notch hotels, and more. You can also research and add local activities in San Bernardino to your flight or hotel reservation to keep the kids happy and active.

Flight Booking, Alerts, and More on Your Mobile Device

Use our mobile app for your iPhone, iPad, or Android phone—or our mobile website m.orbitz.com—to find bargains on flights from Seattle to San Bernardino wherever you are. Book your cheap Seattle to San Bernardino flights and a hotel room too—even at the last minute. Orbitz also makes your life easier with free alerts that are sent to your mobile phone or email about delays to your upcoming flights from Seattle to San Bernardino.

Don’t Miss out on Miles

Accumulate frequent flyer miles or points on your Seattle to San Bernardino flights. It’s as simple as entering your frequent flyer number when you’re making your flight reservation on Orbitz to rack up miles on qualified flights from Seattle to San Bernardino. You can save your frequent flyer numbers in your Orbitz account to save time during your next flight booking.

Frequently asked questions

Are there non-stop flights from Seattle to San Bernardino?
There are two airlines that fly nonstop from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Ontario Airport. Book now with Alaska Airlines or Delta.
What is the shortest flight from Seattle to San Bernardino?
It can take as little as 2 hours and 25 minutes. If you think your vacation hours should be spent 'vacationing' rather than flying, you'll enjoy the trip from Seattle to San Bernardino.
What airlines fly from Seattle to San Bernardino most frequently?
Alaska Airlines (AS) offers 108 flights each month between Seattle - Tacoma Intl. Airport (SEA) to Ontario Airport. Your next big adventure is just a few clicks away. If you can't find the right flight there, check out the airfares with Delta (DL). This airline is a fantastic alternative and operates 91 flights between Seattle and San Bernardino every month.
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.