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Your Dates
Cheapest
Amazing ONT to SEA Flight Deals
The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $105 round trip and $59 one way. Prices and availability subject to change. Additional terms may apply.
Flight Schedule for ONT to SEA
| Carrier | Flight | Depart ONT | Arrive SEA | Tue 1/19 |
Wed 1/20 |
Thu 1/21 |
Fri 1/22 |
Sat 1/23 |
Sun 1/24 |
Mon 1/25 |
Stops | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
{"day":19, "month": 1, "year": 2021} |
 |
AS 615 | 07:45 am | 10:21 am | Check fare | Check fare | Check fare | Check fare | Check fare | Check fare | Check fare | 0 stop(s) |
|
{"day":19, "month": 1, "year": 2021} |
|
AS 617 | 11:15 am | 01:51 pm | Check fare | Check fare | Check fare | Check fare | Check fare | Check fare | Check fare | 0 stop(s) |
|
{"day":19, "month": 1, "year": 2021} |
 |
DL 3673 | 11:45 am | 02:37 pm | Check fare | Check fare | Check fare | Check fare | Check fare | Check fare | Check fare | 0 stop(s) |
|
{"day":19, "month": 1, "year": 2021} |
|
DL 3608 | 05:43 pm | 08:35 pm | Check fare | Check fare | Check fare | Check fare | - | Check fare | Check fare | 0 stop(s) |
|
{"day":19, "month": 1, "year": 2021} |
|
AS 619 | 05:50 pm | 08:32 pm | Check fare | Check fare | Check fare | Check fare | Check fare | Check fare | Check fare | 0 stop(s) |
Los Angeles - Ontario Intl. to Seattle - Tacoma Intl. Flight FAQ
| Traveling From | Los Angeles - Ontario Intl. |
|---|---|
| Traveling To | Seattle - Tacoma Intl. |
| Shortest Flight Time | 2 hours 36 mins |
| Earliest Departure Time | 7:45AM PST |
| Latest Departure Time | 5:50PM PST |
| Lowest Flight Price | $105 |
Route Info
Flight path for flights from LA/Ontario International Airport to Seattle-Tacoma International Airport.
Popular Flight Routes from Ontario (ONT)
Los Angeles - Ontario Intl. to Seattle - Tacoma Intl. Flight FAQ
| Traveling From | Los Angeles - Ontario Intl. |
|---|---|
| Traveling To | Seattle - Tacoma Intl. |
| Shortest Flight Time | 2 hours 36 mins |
| Earliest Departure Time | 7:45AM PST |
| Latest Departure Time | 5:50PM PST |
| Lowest Flight Price | $105 |
Travelers at ONT love to visit these top cities. Roam to the top destinations from Ontario (ONT) today with the cheap prices from Travelocity!
Top ONT Flights to Domestic Cities
- Ontario to Chicago (ONT - ORD)
- Ontario to Denver (ONT - DEN)
- Ontario to Los Angeles (ONT - LAX)
- Ontario to Houston (ONT - IAH)
- Ontario to Newark (ONT - EWR)
- Ontario to New York (ONT - JFK)
- Ontario to Atlanta (ONT - ATL)
- Ontario to San Francisco (ONT - SFO)
- Ontario to Washington (ONT - IAD)
- Ontario to Dallas (ONT - DFW)
Top ONT Flights to International Cities
- Ontario to Beijing (ONT - PEK)
- Ontario to Frankfurt (ONT - FRA)
- Ontario to Paris (ONT - CDG)
- Ontario to Amsterdam (ONT - AMS)
- Ontario to Singapore (ONT - SIN)
- Ontario to Shanghai (ONT - PVG)
- Ontario to Bangkok (ONT - BKK)
- Ontario to Seoul (ONT - ICN)
- Ontario to Dubai (ONT - DXB)
- Ontario to Hong Kong (ONT - HKG)
Popular Flight Routes from Seattle (SEA)
Travelers at SEA love to visit these top cities. Roam to the top destinations from Seattle(SEA) today with the cheap prices from Travelocity!
Top SEA Flights to Domestic Cities
- Seattle to Chicago (SEA - ORD)
- Seattle to Denver (SEA - DEN)
- Seattle to Los Angeles (SEA - LAX)
- Seattle to Houston (SEA - IAH)
- Seattle to Newark (SEA - EWR)
- Seattle to New York (SEA - JFK)
- Seattle to Atlanta (SEA - ATL)
- Seattle to San Francisco (SEA - SFO)
- Seattle to Washington (SEA - IAD)
- Seattle to Dallas (SEA - DFW)
Top SEA Flights International Cities
- Seattle to Beijing (SEA - PEK)
- Seattle to Frankfurt (SEA - FRA)
- Seattle to Paris (SEA - CDG)
- Seattle to Amsterdam (SEA - AMS)
- Seattle to Singapore (SEA - SIN)
- Seattle to Shanghai (SEA - PVG)
- Seattle to Bangkok (SEA - BKK)
- Seattle to Seoul (SEA - ICN)
- Seattle to Dubai (SEA - DXB)
- Seattle to Hong Kong (SEA - HKG)
Top Airlines Servicing ONT - Los Angeles - Ontario Intl. Airport
Top Airlines Servicing SEA - Seattle - Tacoma Intl. Airport
Top Airlines Routes From ONT
- Alaska Airlines Ontario to Chicago
- Frontier Airlines Ontario to Newark
- Alaska Airlines Ontario to Portland
- Alaska Airlines Ontario to Honolulu
- British Airways Ontario to Paris
- Alaska Airlines Ontario to Fort Lauderdale
- Alaska Airlines Ontario to Lihue
- Alaska Airlines Ontario to Salt Lake City
- Alaska Airlines Ontario to Denver
- Alaska Airlines Ontario to Kahului
Top Airlines Routes To SEA
- Alaska Airlines Chicago to Seattle
- Alaska Airlines Newark to Seattle
- Alaska Airlines Phoenix to Seattle
- Alaska Airlines San Diego to Seattle
- Alaska Airlines Washington to Seattle
- Alaska Airlines New York to Seattle
- Alaska Airlines Boston to Seattle
- Alaska Airlines Minneapolis to Seattle
- Alaska Airlines Denver to Seattle
- Alaska Airlines Washington to Seattle
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