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 $104 One Way, $208 Round Trip

Prices starting at $208 for return flights and $104 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.

Fri, Jul 3 - Tue, Jul 7
ONT
Ontario
SEA
Seattle
$208 Roundtrip, found 3 hours ago
$208
Roundtrip
found 3 hours ago
Select Frontier Airlines flight, departing Fri, Jul 3 from Ontario to Seattle, returning Tue, Jul 7, priced at $208 found 3 hours ago
Thu, Jul 16 - Mon, Jul 20
ONT
Ontario
SEA
Seattle
$213 Roundtrip, found 5 hours ago
$213
Roundtrip
found 5 hours ago
Select Frontier Airlines flight, departing Thu, Jul 16 from Ontario to Seattle, returning Mon, Jul 20, priced at $213 found 5 hours ago
Fri, Aug 7 - Tue, Aug 11
ONT
Ontario
SEA
Seattle
$215 Roundtrip, found 3 days ago
$215
Roundtrip
found 3 days ago
Select Bargain Flight flight, departing Fri, Aug 7 from Ontario to Seattle, returning Tue, Aug 11, priced at $215 found 3 days ago
Sat, Aug 8 - Wed, Aug 12
ONT
Ontario
SEA
Seattle
$217 Roundtrip, found 13 hours ago
$217
Roundtrip
found 13 hours ago
Select Delta flight, departing Sat, Aug 8 from Ontario to Seattle, returning Wed, Aug 12, priced at $217 found 13 hours ago
Mon, Aug 3 - Sat, Aug 8
ONT
Ontario
SEA
Seattle
$218 Roundtrip, found 3 days ago
$218
Roundtrip
found 3 days ago
Select Southwest Airlines flight, departing Mon, Aug 3 from Ontario to Seattle, returning Sat, Aug 8, priced at $218 found 3 days ago

Hotel Ideas near Seattle - Tacoma Intl.

Airport Hotels near Seattle - Tacoma Intl.

DoubleTree by Hilton Seattle Airport

DoubleTree by Hilton Seattle Airport

4 out of 5
18740 International Boulevard SeaTac WA
$163 nightly
The price is $186 total per night from Jun 1 to Jun 2
$186 total
Jun 1 - Jun 2
Total with taxes and fees
Book a stay at this business-friendly hotel in SeaTac. Enjoy free WiFi, 2 restaurants, and breakfast (surcharge). Our guests praise the helpful staff and the ...
7.8/10 Good! (3,104 reviews)
"We were not given prior information about where to get the airport shuttle so we had to call and wait quite some time. That leg of the journey was frustrating. About fifteen parties arrived to check in and the staff stepped up with extra help. Checking in I was offered a closer room for $30 extra ..."

Reviewed on May 28, 2026

DoubleTree by Hilton Seattle Airport
Hilton Seattle Airport & Conference Center

Hilton Seattle Airport & Conference Center

4 out of 5
17620 International Blvd SeaTac WA
$175 nightly
The price is $198 total per night from May 31 to Jun 1
$198 total
May 31 - Jun 1
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! (1,330 reviews)
"Location is excellent for staying near the airport and the airport shuttle is frequent and reliable. Hotel staff service is average and our room was not cleaned despite us being out of the room from 10am to 6pm. No apology received when reported to the hotel front desk, but just a “I’ll let the manager ..."

Reviewed on May 28, 2026

Hilton Seattle Airport & Conference Center
Coast Gateway Hotel

Coast Gateway Hotel

3.5 out of 5
18415 International Blvd SeaTac WA
$189 nightly
The price is $215 total per night from May 31 to Jun 1
$215 total
May 31 - Jun 1
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! (7,966 reviews)
"Very convenient for the airport, lovely staff . Very clean."

Reviewed on May 28, 2026

Coast Gateway Hotel
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

Mediterranean Inn

Mediterranean Inn

3 out of 5
425 Queen Anne Ave N Seattle WA
$211 nightly
The price is $249 total per night from Jun 2 to Jun 3
$249 total
Jun 2 - Jun 3
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 ...
9.4/10 Exceptional! (5,866 reviews)
"Nice hotel near the Seattle Cruise Terminal. Staff is friendly and helpful. Nice roof top garden and view."

Reviewed on May 28, 2026

Mediterranean Inn
The Belltown Inn

The Belltown Inn

2.5 out of 5
2301 3rd Avenue Seattle WA
$189 nightly
The price is $223 total per night from Jun 2 to Jun 3
$223 total
Jun 2 - Jun 3
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 ...
9.4/10 Exceptional! (4,517 reviews)
"Staff helpful and accommodating."

Reviewed on May 28, 2026

The Belltown Inn
DoubleTree by Hilton Seattle Airport

DoubleTree by Hilton Seattle Airport

4 out of 5
18740 International Boulevard SeaTac WA
$163 nightly
The price is $186 total per night from Jun 1 to Jun 2
$186 total
Jun 1 - Jun 2
Total with taxes and fees
Book a stay at this business-friendly hotel in SeaTac. Enjoy free WiFi, 2 restaurants, and breakfast (surcharge). Our guests praise the helpful staff and the ...
7.8/10 Good! (3,104 reviews)
"We were not given prior information about where to get the airport shuttle so we had to call and wait quite some time. That leg of the journey was frustrating. About fifteen parties arrived to check in and the staff stepped up with extra help. Checking in I was offered a closer room for $30 extra ..."

Reviewed on May 28, 2026

DoubleTree by Hilton Seattle 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.

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
$100 nightly
The price is $115 total per night from May 31 to Jun 1
$115 total
May 31 - Jun 1
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 (1,972 reviews)
"Good shuttle service- close to airport- nice restaurant"

Reviewed on May 28, 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
$100 nightly
The price is $115 total per night from May 31 to Jun 1
$115 total
May 31 - Jun 1
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! (4,893 reviews)
"This must have been a smoking hotel in its history. The smell was disgusting. The carpet was thread bare and filthy. We had to wear our socks in the shower for fear of what may be in it. I would not recommend this hotel to anyone."

Reviewed on May 27, 2026

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
$120 nightly
The price is $135 total per night from May 31 to Jun 1
$135 total
May 31 - Jun 1
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! (1,341 reviews)
"The staff was very kind."

Reviewed on May 28, 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
$100 nightly
The price is $115 total per night from May 31 to Jun 1
$115 total
May 31 - Jun 1
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! (4,893 reviews)
"This must have been a smoking hotel in its history. The smell was disgusting. The carpet was thread bare and filthy. We had to wear our socks in the shower for fear of what may be in it. I would not recommend this hotel to anyone."

Reviewed on May 27, 2026

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
$120 nightly
The price is $135 total per night from May 31 to Jun 1
$135 total
May 31 - Jun 1
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! (1,341 reviews)
"The staff was very kind."

Reviewed on May 28, 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
$100 nightly
The price is $115 total per night from May 31 to Jun 1
$115 total
May 31 - Jun 1
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 (1,972 reviews)
"Good shuttle service- close to airport- nice restaurant"

Reviewed on May 28, 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
$189 nightly
The price is $219 total per night from May 29 to May 30
$219 total
May 29 - May 30
Total with taxes and fees
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 ...
8.6/10 Excellent! (1,272 reviews)

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

Travelers say...
"We have stayed here for years and are never disappointed."

Reviewed on May 28, 2026

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
$153 nightly
The price is $174 total per night from Jun 1 to Jun 2
$174 total
Jun 1 - Jun 2
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 ...
8.6/10 Excellent! (1,003 reviews)
"Wonderful experience very clean and only about 30 min from downtown Seattle"

Reviewed on May 27, 2026

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
$262 nightly
The price is $310 total per night from Jun 26 to Jun 27
$310 total
Jun 26 - Jun 27
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 ...
9.6/10 Exceptional! (2,174 reviews)
"We were pleased with the cleanliness of our room and the lobby areas. It was pleasant to relax and read in the lobby or simply look out the windows."

Reviewed on May 28, 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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