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Did you mean flights from Ontario, California to Seattle?

Flights from Seattle to Ontario, United States

TIPSave $58 by flying into Los Angeles, California instead of Ontario, California from Seattle

Seattle to Ontario, California Last modified: Oct 21, 2017 1:31 -04:00Prices shown were found by travelers like you over the past 30 days

We've scanned 54,072,693,341 round trip itineraries and found the cheapest flights to Ontario, California. Alaska & United frequently offer the best deals to Ontario, California flights, or select your preferred carrier below to see the cheapest days to fly.

Alaska
SEAONT
Sun 11/12
nonstop
ONTSEA
Wed 11/15
nonstop
$125
United
SEAONT
Mon 11/13
1 stop
ONTSEA
Wed 11/15
1 stop
$149
American
SEAONT
Sun 11/12
nonstop
ONTSEA
Wed 11/15
nonstop
$179
Frontier
SEAONT
Thu 11/9
1 stop
ONTSEA
Tue 11/14
1 stop
$210

How Much is a Flight from Seattle to Ontario, California? Prices shown were found by travelers like you over the past 30 days

We have collected flight cost data from across the web for travel from Seattle to Ontario, California, and have found the average flight price for this trip to be $145.

Where To Buy Cheap Flights from Seattle to Ontario, California?

The best way to find a great deal on airfare is to search multiple sites. When you run a search on FareCompare, we search multiple sites and fare sources all at once so you don't have to - which is why we think FareCompare is the best place to find cheap tickets. Airlines can adjust prices for tickets from Seattle to Ontario, California based on the day and time that you decide to book your flight. We have collected data from all airlines, and have found that Tuesdays, Wednesdays, and Saturdays are often the best days to book flights. If you'd like to learn more, read our article about the best time to buy airline tickets.

How far in advance should I book tickets from Seattle to Ontario, California? Prices shown were found by travelers like you over the past 30 days

The chart below shows up-to-date information regarding how far in advance to book your flight from Seattle to Ontario, California.

Non Stop versus Connecting
Advanced PurchaseNon StopConnecting
< 7 days $406 $209
7-14 days $263 $150
14-21 days $177 $150
21-30 days $125 $149
30-60 days $157 $150
60-90 days $157 $194
90+ days $155 $150

Cheapest Day To Fly from Seattle to Ontario, California Prices shown were found by travelers like you over the past 30 days

We've examined 55,322,585,954 itinerary searches that we've seen for departures in the next 90 days and found that the cheapest day to fly from Seattle to Ontario, California is Sunday. See the chart below to compare prices for other days of the week.

Monday Tuesday Wednesday Thursday Friday Saturday Sunday
$125$125$150$167$167$150$125

Compare Flight Prices from Seattle to Ontario, California by Month Prices shown were found by travelers like you over the past 30 days

Low priced flights are most commonly available by purchasing between one and three months in advance. International or holiday flights may need to be purchased even further in advance. The chart below shows the cheapest flight prices by month for Seattle to Ontario, California flights.

Month Origin Destination Carrier Depart Date Return Date Stops Price
October Seattle Ontario, California United 10/28/17 11/4/17 1 $183
November Seattle Ontario, California Alaska 11/12/17 11/15/17 0 $125
December Seattle Ontario, California United 12/5/17 12/13/17 1 $150
January Seattle Ontario, California Alaska 1/10/18 1/17/18 0 $157
February Seattle Ontario, California Alaska 2/3/18 2/6/18 0 $167
March Seattle Ontario, California Alaska 3/8/18 3/11/18 1 $233
April Seattle Ontario, California United 4/18/18 4/25/18 1 $250
May Seattle Ontario, California United 5/1/18 5/8/18 1 $150

Cheap Last Minute Flights from Seattle to Ontario, California Prices shown were found by travelers like you over the past 30 days

Looking for cheap last minute flights or a weekend getaway? We've got you covered with weekend flight deals from Seattle to Ontario, California. The chart below shows the best last minute deals and cheap flights this weekend we could find.

Next 30 Days

SunMonTueWedThuFriSat
22 23 24 25 26 27 28
$288
29 30 31 1 2 3 4
$288 $150
5 6 7 8 9 10 11
$150 $210
12 13 14 15 16 17 18
$210 $240
19 20 21 22 23 24 25
$240 $210
26 27 28 29 30 1 2
$210

Connecting Flights vs Direct Flights from Seattle to Ontario, California Prices shown were found by travelers like you over the past 30 days

Flights between some cities may be significantly cheaper if you choose a multi-stop airline ticket. Although these connecting flights sacrifice some convenience, on average, travelers save 20%-60% when they choose to fly multi-stop versus a direct flight.

The average price for connecting flights from Seattle to Ontario, California is $185.

The average price for direct flights from Seattle to Ontario, California is $219.

The chart below shows up to date information regarding non-stop flights from Seattle to Ontario, California.

Weekly Direct Flights from Seattle to Ontario, California - By Carrier
CarrierMonTueWedThuFriSatSunEarliest FlightLatest Flight
Alaska 3 3 3 3 3 3 3 06:50 21:25

One Way Flights vs Round Trip Flights from Seattle to Ontario, California Prices shown were found by travelers like you over the past 30 days

We have found that there is often no price difference between buying a round trip flight versus a one way flight. Increased flexibility is the main benefit when it comes to buying a one way flight from Seattle to Ontario, California. However, booking a round trip flight can be a simpler process. You can compare round trip and one way flights by using our flight comparison.

The average price for one way flights from Seattle to Ontario, California is $94.

The average price for round trip flights from Seattle to Ontario, California is $193.

Seattle to Ontario, California Flight Questions

Below are some common questions that asked about this flight route:

Question: How long is the flight from Seattle to Ontario, California?
Answer: The average Seattle to Ontario, California flight time is 2 hours and 28 minutes.
Question: How far is Ontario, California from Seattle?
Answer: The distance from Seattle to Ontario, California is 955 miles (1,536 kilometers).
Question: How common are direct flights from Seattle to Ontario, California?
Answer: There are 17 direct flights from Seattle to Ontario, California.
Question: What are the most popular Seattle airlines for direct flights from Seattle to Ontario, California?
Answer: Alaska Airlines provides 100% of the non-stop flights between Seattle and Ontario, California.
Question: What are the most popular connecting cities when flying from Seattle to Ontario, California?
Answer: San Francisco, CA

Airlines in Seattle flying to Ontario, California Last modified: Oct 21, 2017 1:31 -04:00Number of routes searched: 161Number of itineraries searched: 489,620

Wondering which airlines fly out of Seattle to Ontario, California? We've gathered the average price of Seattle airlines with flights to Ontario, California. Different airlines offer different levels of comfort and service, so consider convenience when choosing your airline.

Below is the full flight schedule summary showing which days of the week individual carriers offer flights for the next 30 days.

Seattle to Ontario, California
Airline Connections Mon Tue Wed Thu Fri Sat Sun
American -
Alaska -
JetBlue -
Major Airlines -
United -
Virgin America -
American PHX
American ORD
American SAN
American SFO
Alaska PDX
Alaska SJC
Alaska DEN
Alaska EUG
Major Airlines SLC
Major Airlines PDX
Major Airlines SAN
Major Airlines SFO
Frontier DEN
United DEN
United SFO
United IAH
United ORD
Virgin America SFO

Seattle to Ontario, California Airports

These are the major commercial airports we're currently monitoring in Seattle and Ontario, California. If your route includes a city with multiple airports, you may be able to find substantial savings by choosing an alternate airport.

Farecompare Research Tools

FareCompare's Flight Schedule Search Tool helps you find information about airline schedule filings, including flight numbers, depart times, and travel distance.

Cheap Domestic Flights from Seattle - SEA Last modified: Oct 21, 2017 1:31 -04:00Prices shown were found by travelers like you over the past 30 days

Cheap Flights from Seattle to Ontario, California