Cheap flights from Phoenix Sky Harbor Intl Airport to Seattle
PHX — SEA
11 Jan — 18 Jan1
Round-trip
1 adult
Economy
Round-trip
1 adult, Economy, 0 bags
Cheapflights Tip: The best prices from Phoenix Sky Harbor Intl to Seattle/Tacoma Intl are usually found in January or February, booked 89 days in advance, depart on a Saturday or Friday and return on a Monday
Find flight deals from Sky Harbor Intl to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Sky Harbor Intl (PHX) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 12 December 2025.
Best time to book a flight from Sky Harbor Intl to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Sky Harbor Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Phoenix Sky Harbor Intl Airport to Seattle
Prices
Airlines
Delays
How far ahead should I book a flight from Phoenix Sky Harbor Intl Airport to Seattle?
Use this chart to determine the optimal time to book a round-trip flight from Sky Harbor Intl to Seattle. Price data was last updated on 5 December 2025.
The price you pay for your flight from Phoenix Sky Harbor Intl Airport to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 89 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Phoenix Sky Harbor Intl Airport to Seattle?
Currently, February is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Seattle (average of C$ 52). Flying from Phoenix Sky Harbor Intl Airport to Seattle in July is currently the most expensive (average of C$ 121). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from PHX to SEA?
Find hourly flight availability from Sky Harbor Intl to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 12 December 2025.
When flying from Phoenix Sky Harbor Intl Airport to Seattle, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 91% versus a flight in the afternoon.
Weekly flight availability from Phoenix Sky Harbor Intl Airport to Seattle
Explore weekly flight availability from Sky Harbor Intl to Seattle. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 12 December 2025.
The most flights from PHX to SEA are scheduled on a Thursday (60 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (22 on average).
How often are flights from Phoenix to Seattle delayed?
About 11% of weekly flights between Phoenix and Seattle have experienced delays in the past year, with the average delay time being 140 minutes.
What is the most punctual flight time for Phoenix to Seattle flights?
Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Tuesday tends to have the lowest number of delays on this route, whereas Friday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Phoenix to Seattle flights?
Over the past year, Delta has had the lowest number of delays on this route, with just 6% of flights being delayed.
Related info for your journey
Find useful and relevant information for your journey from Sky Harbor Intl to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
What airport do you fly into for flights to Seattle from Phoenix Sky Harbor Intl?
Seattle/Tacoma Intl (SEA), located 18.4 km from the city centre, is the airport you fly into when you book flights from Phoenix Sky Harbor Intl to Seattle. 0 airlines have flights to Seattle/Tacoma Intl from Phoenix Sky Harbor Intl on a regular basis. Booking flights from Phoenix Sky Harbor Intl to Seattle/Tacoma Intl should not be difficult; the airport handles an average of 38 inbound flights from Phoenix Sky Harbor Intl per day.
What are the most reliable airlines from Phoenix Sky Harbor Intl Airport to Seattle?
No one likes to see their flight delayed. When booking a flight from Phoenix Sky Harbor Intl Airport to Seattle consider choosing WestJet (89%), Korean Air (89%) or Air France (88%) as they are the most reliable in getting you off to your destination on time.
Can I find deals for flights from Sky Harbor Intl to Seattle that include hotel bookings?
Yes. In addition to deals on Sky Harbor Intl to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Sky Harbor Intl to Seattle?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sky Harbor Intl to Seattle.
Can I find deals for business class flights from Sky Harbor Intl to Seattle?
Yes. Cheapflights offers flight deals from Sky Harbor Intl to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Phoenix Sky Harbor Intl Airport to Seattle?
Currently, February is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Seattle (average of C$ 52). Flying from Phoenix Sky Harbor Intl Airport to Seattle in July is currently the most expensive (average of C$ 121). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Browse through other flights departing from Sky Harbor Intl. Flights are based on user searches made on Cheapflights and were last updated on 12 December 2025.
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 12 December 2025.
Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.
How does Cheapflights help users find flights from Sky Harbor Intl to Seattle?
900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Seattle from Sky Harbor Intl today with Cheapflights!
Why should you use Cheapflights to find cheap flight tickets from Sky Harbor Intl to Seattle?
It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Sky Harbor Intl to Seattle.
Can Cheapflights find flights from Sky Harbor Intl to Seattle with no change fees?
Certainly. Search results for flights to Seattle from Sky Harbor Intl shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.
Can Cheapflights notify me if prices for flights from Sky Harbor Intl to Seattle become cheaper?
Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Seattle from Sky Harbor Intl today and book when prices fit your budget.
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