Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from Phoenix Sky Harbor Intl Airport to Seattle from £61

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/5. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — SEA
17 Apr — 24 Apr1
1 adult

Cheapflights Tip: The best prices from Phoenix Sky Harbor Intl to Seattle/Tacoma Intl are usually found in January or September, booked 63 days in advance, depart on a Friday or Thursday and return on a Tuesday

Cheap 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 April 2025.

Round-trip from

£122

One-way from

£61

Popular in

December

Cheapest in

January

Average price

£151

Good round-trip deal

£319 or less
Alaska Airlines
  • Alaska Airlines
  • 14/5-20/5
  • Nonstop
  • 6h 02m total
  • Phoenix to Seattle
Search Deals
Hawaiian Airlines
  • Hawaiian Airlines
  • 14/5
  • Nonstop
  • 3h 10m total
  • Phoenix to Seattle
Search Deals
High demand for flights, 0% potential price rise
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£2 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2025
Search Deals
Price to beat on a round-trip flight from Phoenix Sky Harbor Intl to Seattle/Tacoma Intl.
Search Deals

Find flight deals from Sky Harbor Intl to Seattle

Cheapest flights from Sky Harbor Intl to Seattle
Explore the most affordable flight options available from Sky Harbor Intl to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 12 April 2025.

Wed 14/506:00PHX - SEA
Nonstop3h 10mAlaska Airlines
Tue 20/509:59SEA - PHX
Nonstop2h 52mAlaska Airlines
Deal found 11/4£122
Wed 21/519:09PHX - SEA
Nonstop3h 16mDelta
Wed 28/519:59SEA - PHX
Nonstop2h 57mDelta
Deal found 11/4£125
Fri 15/817:29PHX - SEA
Nonstop3h 06mHawaiian Airlines
Sun 17/806:00SEA - PHX
Nonstop3h 00mHawaiian Airlines
Deal found 11/4£143
Wed 14/520:50PHX - SEA
Nonstop3h 00mSouthwest
Sun 18/505:30SEA - PHX
2 stops6h 45mSouthwest
Deal found 12/4£144
Sat 17/515:40PHX - SEA
1 stop5h 51mUnited Airlines
Sun 25/517:14SEA - PHX
1 stop7h 01mUnited Airlines
Deal found 11/4£166
Fri 19/908:52PHX - SEA
1 stop8h 18mSun Country Air
Sun 21/918:13SEA - PHX
1 stop14h 39mSun Country Air
Deal found 11/4£253

Cheapflights Fare Finder

Customise your flight search to find flights from Sky Harbor Intl to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 12 April 2025.
Use the filters below to find and compare flights from Phoenix Sky Harbor Intl Airport to Seattle that are best for you.

Fly from

Sky Harbor Intl

Fly to

Seattle

Route

Depart

Return

Price

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Wed 14/5

06:00-09:10

Nonstop3h 10m

Seattle/Tacoma Intl

Tue 20/5

09:59-12:51

Nonstop2h 52m

£122

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Wed 21/5

19:09-22:25

Nonstop3h 16m

Seattle/Tacoma Intl

Wed 28/5

19:59-22:56

Nonstop2h 57m

£125

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Fri 15/8

17:29-20:35

Nonstop3h 06m

Seattle/Tacoma Intl

Sun 17/8

06:00-09:00

Nonstop3h 00m

£143

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Wed 14/5

20:50-23:50

Nonstop3h 00m

Seattle/Tacoma Intl

Sun 18/5

05:30-12:15

2 stops6h 45m

£144

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Sat 17/5

15:40-21:31

1 stop5h 51m

Seattle/Tacoma Intl

Sun 25/5

17:14-00:15

1 stop7h 01m

£166

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Fri 19/9

08:52-17:10

1 stop8h 18m

Seattle/Tacoma Intl

Sun 21/9

18:13-08:52

1 stop14h 39m

£253

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Wed 14/5

06:00-09:10

Nonstop3h 10m

£61

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Wed 2/7

06:00-09:04

Nonstop3h 04m

£76

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Sat 10/5

07:00-12:25

1 stop5h 25m

£79

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Tue 29/4

17:20-20:32

Nonstop3h 12m

£80

Flights are sorted by cheapest return flights first.

Deals found on 12/4

Showing 1-10 of 11 results
1
2

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 return 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

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 return flight from Sky Harbor Intl to Seattle. Price data was last updated on 4 April 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 63 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, January is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Seattle (average of £622). Flying from Phoenix Sky Harbor Intl Airport to Seattle in July is currently the most expensive (average of £946). 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 April 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 43% on flights from Phoenix Sky Harbor Intl Airport to Seattle by exploring options for tickets at midday.

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 April 2025.

The most flights from PHX to SEA are scheduled on a Friday (55 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (28 on average).

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 inches per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated 12 April 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from Phoenix to Seattle to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very Good
9,859 reviews
Check prices

Food

7.1

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Alaska Airlines
8.0
Very Good
9,859 reviews
Alaska Airlines
8.0
Very Good
9,859 reviews
Check prices

Food

7.1

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Southwest
8.0
Very Good
4,277 reviews
Alaska Airlines
8.0
Very Good
9,859 reviews
Check prices

Food

7.1

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Delta
8.0
Very Good
7,912 reviews
Alaska Airlines
8.0
Very Good
9,859 reviews
Check prices

Food

7.1

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
Hawaiian Airlines
7.9
Good
2,366 reviews
Alaska Airlines
8.0
Very Good
9,859 reviews
Check prices

Food

7.1

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them
United Airlines
7.4
Good
8,644 reviews
Alaska Airlines
8.0
Very Good
9,859 reviews
Check prices

Food

7.1

Overall

8.0

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Cheri,Jan 2025

FAT - SEA

Very friendly. I really liked that they had water for us in cartons not plastic. Impressed with Alaska Airlines, First time I had flown them

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?

    For a flight from Phoenix Sky Harbor Intl to Seattle, you will be flying into Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 11.4 mi from the center of the city. Seattle/Tacoma Intl is the only Seattle airport and it handles 39 inbound flights from Phoenix Sky Harbor Intl per day. 0 airlines have flights to Seattle/Tacoma Intl from Phoenix Sky Harbor Intl on a regular basis.

  • What are the cheapest airlines flying from Phoenix Sky Harbor Intl Airport to Seattle round-trip?

    According to our current data, Alaska Airlines (£122), Delta (£125), and Hawaiian Airlines (£143) offers the cheapest pricing from Phoenix Sky Harbor Intl Airport to Seattle. You may be able to fly from Phoenix Sky Harbor Intl Airport to Seattle for 14% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Phoenix Sky Harbor Intl Airport to Seattle one-way?

    The cheapet airlines for a one-way flight from Phoenix Sky Harbor Intl Airport to Seattle are Hawaiian Airlines (£61), Alaska Airlines (£76), and Southwest (£79).

  • What are the most reliable airlines from Phoenix Sky Harbor Intl Airport to Seattle?

    Consider Air Europa (100%), Aeromexico (100%) or LATAM Airlines (100%) when booking your flight. These represent the most reliable airlines when flying from Phoenix Sky Harbor Intl Airport to Seattle.

  • What are the cheapest flights from Phoenix Sky Harbor Intl Airport to Seattle?

    While on average a flight from Phoenix Sky Harbor Intl Airport to Seattle is generally £586, our data shows the cheapest flight currently is £213. When looking at the most popular route, (Phoenix Sky Harbor Intl - Seattle/Tacoma Intl), you can expect to pay £318 for that flight.

  • 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 holiday 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, January is the cheapest month in which you can book a flight from Phoenix Sky Harbor Intl Airport to Seattle (average of £622). Flying from Phoenix Sky Harbor Intl Airport to Seattle in July is currently the most expensive (average of £946). 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.

See more FAQs

Travelling to a place near Phoenix Sky Harbor Intl Airport?

Book flights to Phoenix Sky Harbor Intl Airport if you plan to visit one of these locations
Tacoma
Leavenworth
Bothell

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers 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?

Millions of users choose and trust Cheapflights to book the best flight deals from Sky Harbor Intl to Seattle for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Sky Harbor Intl to Seattle with no change fees?

Yes, we can. To see specific flights from Sky Harbor Intl to Seattle with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.
Site
©2025 Cheapflights