Cheap flights from ONT to SEA (Los Angeles - Ontario Intl. to Seattle - Tacoma Intl.)

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Cheap Flights from ONT to SEA starting at $35 One Way, $100 Round Trip

Prices starting at $100 for return flights and $35 for one-way flights to Seattle - Tacoma Intl. were the cheapest prices found within the past 7 days, for the period specified. Prices and availability are subject to change. Additional terms apply.

Mon, Dec 22 - Thu, Jan 8
ONT
Ontario
SEA
Seattle
$100 Roundtrip, found 1 day ago
$100
Roundtrip
found 1 day ago
Select Frontier Airlines flight, departing Mon, Dec 22 from Ontario to Seattle, returning Thu, Jan 8, priced at $100 found 1 day ago
Tue, Jan 13 - Sat, Jan 17
ONT
Ontario
SEA
Seattle
$101 Roundtrip, found 2 days ago
$101
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Jan 13 from Ontario to Seattle, returning Sat, Jan 17, priced at $101 found 2 days ago
Thu, Jan 8 - Sun, Jan 11
ONT
Ontario
SEA
Seattle
$105 Roundtrip, just found
$105
Roundtrip
just found
Select Frontier Airlines flight, departing Thu, Jan 8 from Ontario to Seattle, returning Sun, Jan 11, priced at $105 just found
Thu, Jan 22 - Mon, Jan 26
ONT
Ontario
SEA
Seattle
$110 Roundtrip, found 3 days ago
$110
Roundtrip
found 3 days ago
Select Delta flight, departing Thu, Jan 22 from Ontario to Seattle, returning Mon, Jan 26, priced at $110 found 3 days ago
Tue, Jan 13 - Sat, Jan 17
ONT
Ontario
SEA
Seattle
$111 Roundtrip, found 2 days ago
$111
Roundtrip
found 2 days ago
Select Delta flight, departing Tue, Jan 13 from Ontario to Seattle, returning Sat, Jan 17, priced at $111 found 2 days ago

Hotel Ideas near Seattle - Tacoma Intl.

Airport Hotels near Seattle - Tacoma Intl.

Hilton Seattle Airport & Conference Center

Hilton Seattle Airport & Conference Center

4 out of 5
17620 International Blvd SeaTac WA
$113 nightly
The price is $129 total per night from Dec 12 to Dec 13
$129 total
Dec 12 - Dec 13
Total with taxes and fees
Stay at this hotel in SeaTac. Enjoy free WiFi, breakfast (surcharge), and a free airport shuttle. Our guests praise the helpful staff in our reviews. Popular ...
8.2/10 Very Good! (1,097 reviews)
we got the plunger thank you-

Reviewed on Dec 1, 2025

Hilton Seattle Airport & Conference Center
Coast Gateway Hotel

Coast Gateway Hotel

3.5 out of 5
18415 International Blvd SeaTac WA
$97 nightly
The price is $111 total per night from Dec 25 to Dec 26
$111 total
Dec 25 - Dec 26
Total with taxes and fees
Book a stay at this business-friendly hotel in SeaTac. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the breakfast and the restaurant ...
9.2/10 Wonderful! (7,819 reviews)
Great

Reviewed on Dec 3, 2025

Coast Gateway Hotel
Country Inn & Suites by Radisson, Seattle-Tacoma International Airport, WA

Country Inn & Suites by Radisson, Seattle-Tacoma International Airport, WA

3 out of 5
3100 South 192nd Street SeaTac WA
$81 nightly
The price is $93 total per night from Jan 1 to Jan 2
$93 total
Jan 1 - Jan 2, 2026
Total with taxes and fees
Book a stay at this business-friendly hotel in SeaTac. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the breakfast and the helpful staff ...
9/10 Wonderful! (6,307 reviews)
Super friendly and great staff

Reviewed on Dec 1, 2025

Country Inn & Suites by Radisson, Seattle-Tacoma International Airport, WA
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.

Hotels In Seattle

Fairmont Olympic Hotel

Fairmont Olympic Hotel

5 out of 5
411 University St Seattle WA
$283 nightly
The price is $334 total per night from Dec 7 to Dec 8
$334 total
Dec 7 - Dec 8
Total with taxes and fees
Book a stay at this luxury hotel in Seattle. Enjoy a full-service spa, 2 restaurants, and breakfast (surcharge). Our guests praise the bar and the helpful staff ...
9/10 Wonderful! (1,427 reviews)
Wow!! Beautiful historic hotel with excellent staff and lovely amenities!

Reviewed on Dec 4, 2025

Fairmont Olympic Hotel
Mayflower Park Hotel

Mayflower Park Hotel

4 out of 5
405 Olive Way Seattle WA
$144 nightly
The price is $170 total per night from Dec 9 to Dec 10
$170 total
Dec 9 - Dec 10
Total with taxes and fees
Book a stay at this historic hotel in Seattle. Enjoy free WiFi, breakfast (surcharge), and 24-hour room service. Our guests praise the breakfast and the restaurant ...
9.2/10 Wonderful! (2,404 reviews)
Good location, nice staff

Reviewed on Dec 5, 2025

Mayflower Park Hotel
Hyatt Regency Seattle

Hyatt Regency Seattle

4 out of 5
808 Howell St Seattle WA
$127 nightly
The price is $149 total per night from Dec 12 to Dec 13
$149 total
Dec 12 - Dec 13
Total with taxes and fees
Book a stay at this business-friendly hotel in Seattle. Enjoy free WiFi, 2 restaurants, and breakfast (surcharge). Our guests praise the helpful staff and the ...
9.4/10 Exceptional! (4,415 reviews)
Clean room.

Reviewed on Dec 5, 2025

Hyatt Regency Seattle
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.

Seattle Hotels With Airport Transportation

Ramada by Wyndham SeaTac Airport

Ramada by Wyndham SeaTac Airport

2.5 out of 5
16720 International Blvd SeaTac WA
$70 nightly
The price is $81 total per night from Dec 7 to Dec 8
$81 total
Dec 7 - Dec 8
Total with taxes and fees
Book a stay at this business-friendly hotel in SeaTac. Enjoy free WiFi, free parking, and breakfast (surcharge). Our guests praise the clean rooms in our reviews. ...
6.4/10 (1,950 reviews)
Stay was good.i would certainly come again.shuttle was great.staff friendly.only a room for improvement on cleaning the room.i think they can do a better job.but will definitely come again.i felt comfortable staying there.

Reviewed on Dec 5, 2025

Ramada by Wyndham SeaTac Airport
Red Roof Inn Seattle Airport - SEATAC

Red Roof Inn Seattle Airport - SEATAC

2 out of 5
16838 International Boulevard SeaTac WA
$62 nightly
The price is $71 total per night from Dec 9 to Dec 10
$71 total
Dec 9 - Dec 10
Total with taxes and fees
Stay at this hotel in SeaTac. Enjoy free WiFi, a free airport shuttle, and a fitness center. Our guests praise the helpful staff and the clean rooms in our reviews. ...
7.8/10 Good! (4,820 reviews)
Nice

Reviewed on Nov 30, 2025

Red Roof Inn Seattle Airport - SEATAC
Days Inn by Wyndham Seatac Airport

Days Inn by Wyndham Seatac Airport

2 out of 5
19015 International Blvd SeaTac WA
$62 nightly
The price is $70 total per night from Dec 8 to Dec 9
$70 total
Dec 8 - Dec 9
Total with taxes and fees
Book a stay at this business-friendly hotel in SeaTac. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff and the clean rooms ...
7.4/10 Good! (1,223 reviews)
The accommodations need some help. For example, the only place to plug in the coffee pot was near the bathroom vanity sink. Few plug-in outlets in general. The service, from the receptionist to the shuttle drivers were outstanding! I’d visit again simply because of their kindness and commitment to ...

Reviewed on Dec 3, 2025

Days Inn by Wyndham Seatac Airport
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.

Low Priced Seattle Hotels

Red Roof Inn Seattle Airport - SEATAC

Red Roof Inn Seattle Airport - SEATAC

2 out of 5
16838 International Boulevard SeaTac WA
$62 nightly
The price is $71 total per night from Dec 9 to Dec 10
$71 total
Dec 9 - Dec 10
Total with taxes and fees
Stay at this hotel in SeaTac. Enjoy free WiFi, a free airport shuttle, and a fitness center. Our guests praise the helpful staff and the clean rooms in our reviews. ...
7.8/10 Good! (4,820 reviews)
Nice

Reviewed on Nov 30, 2025

Red Roof Inn Seattle Airport - SEATAC
Days Inn by Wyndham Seatac Airport

Days Inn by Wyndham Seatac Airport

2 out of 5
19015 International Blvd SeaTac WA
$62 nightly
The price is $70 total per night from Dec 8 to Dec 9
$70 total
Dec 8 - Dec 9
Total with taxes and fees
Book a stay at this business-friendly hotel in SeaTac. Enjoy free breakfast, free WiFi, and free parking. Our guests praise the helpful staff and the clean rooms ...
7.4/10 Good! (1,223 reviews)
The accommodations need some help. For example, the only place to plug in the coffee pot was near the bathroom vanity sink. Few plug-in outlets in general. The service, from the receptionist to the shuttle drivers were outstanding! I’d visit again simply because of their kindness and commitment to ...

Reviewed on Dec 3, 2025

Days Inn by Wyndham Seatac Airport
Ramada by Wyndham SeaTac Airport

Ramada by Wyndham SeaTac Airport

2.5 out of 5
16720 International Blvd SeaTac WA
$70 nightly
The price is $81 total per night from Dec 7 to Dec 8
$81 total
Dec 7 - Dec 8
Total with taxes and fees
Book a stay at this business-friendly hotel in SeaTac. Enjoy free WiFi, free parking, and breakfast (surcharge). Our guests praise the clean rooms in our reviews. ...
6.4/10 (1,950 reviews)
Stay was good.i would certainly come again.shuttle was great.staff friendly.only a room for improvement on cleaning the room.i think they can do a better job.but will definitely come again.i felt comfortable staying there.

Reviewed on Dec 5, 2025

Ramada by Wyndham SeaTac Airport
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.

Family Friendly Hotels in Seattle

Embassy Suites by Hilton Seattle Bellevue

Embassy Suites by Hilton Seattle Bellevue

3.5 out of 5
3225 158th Avenue SE Bellevue WA
$127 nightly
The price is $148 total per night from Dec 14 to Dec 15
$148 total
Dec 14 - Dec 15
Total with taxes and fees
Book a stay at this family-friendly hotel in Bellevue. Enjoy free breakfast, room service, and a fitness center. Our guests praise the breakfast and the helpful ...
8.4/10 Very Good! (1,002 reviews)

Families like: Indoor pool, cribs, free breakfast for the whole family, laundry

Travelers say...
I love this hotel but

Reviewed on Dec 4, 2025

Embassy Suites by Hilton Seattle Bellevue
Homewood Suites by Hilton Lynnwood Seattle Everett, WA

Homewood Suites by Hilton Lynnwood Seattle Everett, WA

3 out of 5
18123 Alderwood Mall Pkwy Lynnwood WA
$111 nightly
The price is $127 total per night from Dec 12 to Dec 13
$127 total
Dec 12 - Dec 13
Total with taxes and fees
Stay at this hotel in Lynnwood. Enjoy free breakfast, free WiFi, and a 24-hour fitness center. Our guests praise the breakfast and the pool in our reviews. Popular ...
8.4/10 Very Good! (1,008 reviews)
The room is clean and the staff are very friendly

Reviewed on Nov 30, 2025

Homewood Suites by Hilton Lynnwood Seattle Everett, WA
Staypineapple, The Maxwell Hotel, Seattle Center Seattle

Staypineapple, The Maxwell Hotel, Seattle Center Seattle

3.5 out of 5
300 Roy St Seattle WA
$149 nightly
The price is $176 total per night from Jan 3 to Jan 4
$176 total
Jan 3 - Jan 4, 2026
Total with taxes and fees
Book a stay at this boutique hotel in Seattle. Enjoy breakfast (surcharge), a fitness center, and parking (surcharge). Our guests praise the bar and the helpful ...
9.4/10 Exceptional! (2,058 reviews)
Clean rooms. Love the ambiance!

Reviewed on Dec 1, 2025

Staypineapple, The Maxwell Hotel, Seattle Center Seattle
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.

ONT to SEA Route Info

Origin Airport
Destination Airport
Number Of Airlines Serving
Distance
Shortest Flight Departure Time
Shortest Flight Departure Date
ONT Address & GPS
Address:
2900 E. Airport Drive
Ontario CA, 91761
United States
IATA Code:
ONT
Longitude:
-117.601193
Latitude:
34.056001
Time Zone:
America/Los_Angeles
SEA Address & GPS
Address:
Seattle WA, 98158
United States
IATA Code:
SEA
Longitude:
-122.301732
Latitude:
47.443839
Time Zone:
America/Los_Angeles

Frequently asked questions

Are there non-stop flights from ONT to Sea-Tac Airport?
We're just about to make your upcoming vacation even better — there are 3 airlines that will take you directly from ONT to SEA. Regular jetsetters recommend these top carriers:

  • Alaska Airlines
  • Delta Air Lines
  • Frontier Airlines

What is the shortest flight from ONT to Sea-Tac Airport?
If the weather is good and there are no delays, you could be jetting into SEA from Los Angeles - Ontario Intl. Airport (ONT) in as little as 2 hours and 51 minutes. With such a brief flight time, contemplate traveling with hand luggage only.
How many hours flight from ONT to Seattle - Tacoma Intl. Airport (SEA)?
The general flight time from ONT to SEA is a leisurely 2 hours and 54 minutes. So, throw a few things in your suitcase and hop on a flight. There's nothing more exhilarating than an impromptu vacation.
What airlines have the most flights from Ontario Airport to Sea-Tac Airport?
A worry-free, full-of-fun vacation starts with choosing a top-notch airline. Frontier Airlines (F9) offers 15 flights every month from ONT to Seattle - Tacoma Intl. Airport (SEA). Why not step on board and see why it has a reputation for being one of the best? Delta Air Lines (DL) also services the route from Ontario to Seattle. It's another reliable choice and has 73 flights monthly.

Map To Nearby Hotels

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.

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