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

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Cheap Flights from ONT to SEA starting at $65 One Way, $163 Round Trip

Prices starting at $163 for return flights and $65 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.

Sat, Jan 23 - Sat, Jan 30
ONT
Ontario
SEA
Seattle
$163 Roundtrip, found 2 days ago
$163
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sat, Jan 23 from Ontario to Seattle, returning Sat, Jan 30, priced at $163 found 2 days ago
Sat, Dec 5 - Sat, Dec 12
ONT
Ontario
SEA
Seattle
$176 Roundtrip, found 2 days ago
$176
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sat, Dec 5 from Ontario to Seattle, returning Sat, Dec 12, priced at $176 found 2 days ago
Sat, Sep 26 - Sun, Sep 27
ONT
Ontario
SEA
Seattle
$188 Roundtrip, found 6 hours ago
$188
Roundtrip
found 6 hours ago
Select Frontier Airlines flight, departing Sat, Sep 26 from Ontario to Seattle, returning Sun, Sep 27, priced at $188 found 6 hours ago
Fri, Dec 11 - Sat, Dec 12
ONT
Ontario
SEA
Seattle
$192 Roundtrip, found 2 days ago
$192
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Fri, Dec 11 from Ontario to Seattle, returning Sat, Dec 12, priced at $192 found 2 days ago
Mon, Oct 26 - Wed, Oct 28
ONT
Ontario
SEA
Seattle
$263 Roundtrip, found 4 days ago
$263
Roundtrip
found 4 days ago
Select Southwest Airlines flight, departing Mon, Oct 26 from Ontario to Seattle, returning Wed, Oct 28, priced at $263 found 4 days ago

Hotel Ideas near Seattle - Tacoma Intl.

Airport Hotels near Seattle - Tacoma Intl.

Coast Gateway Hotel

Coast Gateway Hotel

3.5 out of 5
18415 International Blvd SeaTac WA
The price is $149 total per night from Oct 13 to Oct 14
$149 total
per night
Oct 13 - Oct 14
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! (7,839 reviews)
"Everything was good except the parking situation. The adjacent restaurant has inadequate parking so their customers take up most spots that are for hotel guests."

Reviewed on Sep 22, 2026

Coast Gateway Hotel
Hilton Seattle Airport & Conference Center

Hilton Seattle Airport & Conference Center

4 out of 5
17620 International Blvd SeaTac WA
The price is $94 total per night from Oct 18 to Oct 19
$94 total
per night
Oct 18 - Oct 19
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! (1,533 reviews)
"I always stay here before and/or after a flight. Without asking, they usually put me on the same floor and in the same few rooms near the ice machine, which I really appreciate. I like the feeling of comfort and familiarity."

Reviewed on Sep 20, 2026

Hilton Seattle Airport & Conference Center
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
The price is $128 total per night from Oct 18 to Oct 19
$128 total
per night
Oct 18 - Oct 19
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! (6,627 reviews)
"Noisy all night long (walking/door slamming). Far away from everything. Only close to the airport."

Reviewed on Sep 22, 2026

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

The Paramount Hotel

The Paramount Hotel

3.5 out of 5
724 Pine St Seattle WA
$199 nightly
The price is $235 total per night from Oct 18 to Oct 19
$235 total
Oct 18 - Oct 19
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 restaurant and the helpful ...
The Paramount Hotel
The Belltown Inn

The Belltown Inn

2.5 out of 5
2301 3rd Avenue Seattle WA
$126 nightly
The price is $148 total per night from Oct 13 to Oct 14
$148 total
Oct 13 - Oct 14
Total with taxes and fees
Book a stay at this business-friendly hotel in Seattle. Enjoy free WiFi, a rooftop terrace, and free bicycles on site. Our guests praise the helpful staff and ...
The Belltown Inn
Mediterranean Inn

Mediterranean Inn

3 out of 5
425 Queen Anne Ave N Seattle WA
$158 nightly
The price is $187 total per night from Oct 14 to Oct 15
$187 total
Oct 14 - Oct 15
Total with taxes and fees
Book a stay at this business-friendly hotel in Seattle. Enjoy free WiFi, a rooftop terrace, and a 24-hour fitness center. Our guests praise the helpful staff ...
Mediterranean Inn
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
$71 nightly
The price is $82 total per night from Oct 11 to Oct 12
$82 total
Oct 11 - Oct 12
Total with taxes and fees
Book a stay at this business-friendly hotel in SeaTac. Enjoy free WiFi, free parking, and a free airport shuttle. Our guests praise the clean rooms in our reviews. ...
6.8/10 (1,951 reviews)
"This hotel was in a convenient location to the venue we were in town for. Close to the airport. Easy access front freeway. Staff was friendly and helpful to make sure I was having a great visit."

Reviewed on Sep 22, 2026

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 $72 total per night from Oct 1 to Oct 2
$72 total
Oct 1 - Oct 2
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. ...
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
$89 nightly
The price is $100 total per night from Oct 12 to Oct 13
$100 total
Oct 12 - Oct 13
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 ...
7.6/10 Good! (1,395 reviews)
"Staff was extremely helpful and very nice"

Reviewed on Sep 22, 2026

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
The price is $72 total per night from Oct 1 to Oct 2
$72 total
per night
Oct 1 - Oct 2
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. ...
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
The price is $100 total per night from Oct 12 to Oct 13
$100 total
per night
Oct 12 - Oct 13
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 ...
7.6/10 Good! (1,395 reviews)
"Staff was extremely helpful and very nice"

Reviewed on Sep 22, 2026

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
The price is $82 total per night from Oct 11 to Oct 12
$82 total
per night
Oct 11 - Oct 12
Book a stay at this business-friendly hotel in SeaTac. Enjoy free WiFi, free parking, and a free airport shuttle. Our guests praise the clean rooms in our reviews. ...
6.8/10 (1,951 reviews)
"This hotel was in a convenient location to the venue we were in town for. Close to the airport. Easy access front freeway. Staff was friendly and helpful to make sure I was having a great visit."

Reviewed on Sep 22, 2026

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
The price is $187 total per night from Oct 3 to Oct 4
$187 total
per night
Oct 3 - Oct 4
Book a stay at this family-friendly hotel in Bellevue. Enjoy free breakfast, free WiFi, and room service. Our guests praise the breakfast and the helpful staff ...
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
The price is $143 total per night from Oct 3 to Oct 4
$143 total
per night
Oct 3 - Oct 4
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 ...
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
The price is $178 total per night from Oct 14 to Oct 15
$178 total
per night
Oct 14 - Oct 15
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 ...
9.6/10 Exceptional! (2,329 reviews)
"A great stay, with friendly staff."

Reviewed on Sep 22, 2026

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

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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