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, $69 Round Trip

Prices starting at $69 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.

Thu, Jan 8 - Sun, Jan 11
ONT
Ontario
SEA
Seattle
$69 Roundtrip, found 10 hours ago
$69
Roundtrip
found 10 hours ago
Select Frontier Airlines flight, departing Thu, Jan 8 from Ontario to Seattle, returning Sun, Jan 11, priced at $69 found 10 hours ago
Fri, Dec 19 - Mon, Jan 5
ONT
Ontario
SEA
Seattle
$84 Roundtrip, found 3 days ago
$84
Roundtrip
found 3 days ago
Select Frontier Airlines flight, departing Fri, Dec 19 from Ontario to Seattle, returning Mon, Jan 5, priced at $84 found 3 days ago
Sat, Jan 10 - Sun, Jan 11
ONT
Ontario
SEA
Seattle
$109 Roundtrip, found 2 days ago
$109
Roundtrip
found 2 days ago
Select Frontier Airlines flight, departing Sat, Jan 10 from Ontario to Seattle, returning Sun, Jan 11, priced at $109 found 2 days ago
Mon, Dec 22 - Fri, Jan 2
ONT
Ontario
SEA
Seattle
$110 Roundtrip, found 2 hours ago
$110
Roundtrip
found 2 hours ago
Select Frontier Airlines flight, departing Mon, Dec 22 from Ontario to Seattle, returning Fri, Jan 2, priced at $110 found 2 hours ago
Sat, Jan 24 - Sun, Jan 25
ONT
Ontario
SEA
Seattle
$117 Roundtrip, found 2 days ago
$117
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Sat, Jan 24 from Ontario to Seattle, returning Sun, Jan 25, priced at $117 found 2 days ago

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

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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