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Cheap flights from Phoenix Sky Harbor Intl Airport to Seattle from £62

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 22/4. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — SEA
27 Mar — 3 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 Thursday or Tuesday 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 22 March 2025.

Round-trip from

£123

One-way from

£62

Popular in

December

Cheapest in

January

Average price

£153

Good round-trip deal

£503 or less
Delta
  • Delta
  • 22/4-29/4
  • Nonstop
  • 6h 04m total
  • Phoenix to Seattle
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Delta
  • Delta
  • 22/4
  • Nonstop
  • 3h 12m total
  • Phoenix to Seattle
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Highest demand for flights based on searches. 0% potential increase in price (£0 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease (£2 potential savings vs. average return price).
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Average for round-trip flights in March 2025
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Price to beat on a round-trip flight from Phoenix Sky Harbor Intl to Seattle/Tacoma Intl.
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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 22 March 2025.

Tue 22/417:20PHX - SEA
Nonstop3h 12mDelta
Tue 29/417:45SEA - PHX
Nonstop2h 52mDelta
Deal found 21/3£123
Wed 10/907:00PHX - SEA
Nonstop3h 07mHawaiian Airlines
Wed 10/914:02SEA - PHX
Nonstop3h 03mHawaiian Airlines
Deal found 20/3£124
Fri 17/1011:40PHX - SEA
Nonstop3h 00mAlaska Airlines
Fri 17/1017:15SEA - PHX
Nonstop2h 56mAlaska Airlines
Deal found 21/3£140
Wed 7/520:50PHX - SEA
Nonstop3h 00mSouthwest
Tue 13/515:55SEA - PHX
1 stop6h 45mSouthwest
Deal found 21/3£141
Mon 14/406:00PHX - SEA
1 stop7h 59mUnited Airlines
Tue 15/406:15SEA - PHX
1 stop6h 44mUnited Airlines
Deal found 21/3£168
Fri 26/918:50PHX - SEA
1 stop17h 52mSun Country Air
Sat 4/1018:24SEA - PHX
1 stop17h 49mSun Country Air
Deal found 21/3£236

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 22 March 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

Tue 22/4

17:20-20:32

Nonstop3h 12m

Seattle/Tacoma Intl

Tue 29/4

17:45-20:37

Nonstop2h 52m

£123

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Wed 10/9

07:00-10:07

Nonstop3h 07m

Seattle/Tacoma Intl

Wed 10/9

14:02-17:05

Nonstop3h 03m

£124

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Wed 7/5

20:50-23:50

Nonstop3h 00m

Seattle/Tacoma Intl

Tue 13/5

15:55-22:40

1 stop6h 45m

£141

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Tue 29/4

09:00-16:40

1 stop7h 40m

Seattle/Tacoma Intl

Fri 30/5

11:54-14:47

Nonstop2h 53m

£160

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Mon 14/4

06:00-13:59

1 stop7h 59m

Seattle/Tacoma Intl

Tue 15/4

06:15-12:59

1 stop6h 44m

£168

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Tue 22/4

17:20-20:32

Nonstop3h 12m

£62

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Thu 1/5

20:51-23:59

Nonstop3h 08m

£65

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Sat 16/8

06:00-09:04

Nonstop3h 04m

£77

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Tue 29/4

17:45-22:30

1 stop4h 45m

£80

PhoenixSeattle

PHX - SEA

PHXSEA

Phoenix Sky Harbor Intl

Sat 26/4

07:15-14:37

1 stop7h 22m

£84

Flights are sorted by cheapest return flights first.

Deals found on 21/3

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 14 March 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 22 March 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 22 March 2025.

The most flights from PHX to SEA are scheduled on a Friday (58 on average). You will have fewer flight options on Sunday, 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 22 March 2025.
Peruse reviews from past customers who have flown with Southwest, Alaska Airlines 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.
Southwest
8.1
Very Good
4,277 reviews
Check prices

Comfort

8.1

Overall

8.1

Food

7.1

Entertainment

7.6

Boarding

8.2

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.1
Very Good
4,277 reviews
Southwest
8.1
Very Good
4,277 reviews
Check prices

Comfort

8.1

Overall

8.1

Food

7.1

Entertainment

7.6

Boarding

8.2

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Alaska Airlines
8.0
Very Good
9,759 reviews
Southwest
8.1
Very Good
4,277 reviews
Check prices

Comfort

8.1

Overall

8.1

Food

7.1

Entertainment

7.6

Boarding

8.2

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very Good
7,892 reviews
Southwest
8.1
Very Good
4,277 reviews
Check prices

Comfort

8.1

Overall

8.1

Food

7.1

Entertainment

7.6

Boarding

8.2

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Hawaiian Airlines
7.9
Good
2,325 reviews
Southwest
8.1
Very Good
4,277 reviews
Check prices

Comfort

8.1

Overall

8.1

Food

7.1

Entertainment

7.6

Boarding

8.2

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,605 reviews
Southwest
8.1
Very Good
4,277 reviews
Check prices

Comfort

8.1

Overall

8.1

Food

7.1

Entertainment

7.6

Boarding

8.2

Crew

8.7

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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 40 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, Delta (£123), Hawaiian Airlines (£124), and Southwest (£141) 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 12% 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 Delta (£62), Hawaiian Airlines (£65), and Alaska Airlines (£77).

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

    Consider Air France (98%), WestJet (96%) or KLM (95%) 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 £537, our data shows the cheapest flight currently is £215. When looking at the most popular route, (Phoenix Sky Harbor Intl - Seattle/Tacoma Intl), you can expect to pay £72 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

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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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